Publications by authors named "Anne-Friederike Huebener"

Background: High-mobility group box protein 1 [HMGB1] is a ubiquitous nucleoprotein with immune-regulatory properties following cellular secretion or release in sterile and in infectious inflammation. Stool and serum HMGB1 levels correlate with colitis severity and colorectal cancer [CRC] progression, yet recent reports indicate that HMGB1 mainly operates as an intracellular determinant of enterocyte fate during colitis, and investigations into the roles of HMGB1 in CRC are lacking.

Methods: Using mice with conditional HMGB1-knockout in enterocytes [Hmgb1ΔIEC] and myeloid cells [Hmgb1ΔLysM], respectively, we explored functions of HMGB1 in pathogenetically diverse contexts of colitis and colitis-associated CRC.

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Article Synopsis
  • Periodontitis is commonly diagnosed in patients with ascitic decompensated liver cirrhosis, found in 82% of the study group compared to 59% in a control group, suggesting a strong correlation between the two conditions.
  • The study utilized PCR testing on gingival samples, ascites, and stool but found no evidence of specific periodontitis pathogens in ascites, although some were present in stools and gums.
  • Patients with periodontitis showed a significantly higher survival rate and transplant-free survival compared to those without, indicating a potential protective effect of periodontitis in this cohort.
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Background: The modern-day cardiac intensive care unit (CICU) has evolved to care for patients with acute critical cardiac illness. We describe the current population of cardiac patients in a quaternary CICU.

Methods: Consecutive CICU patients admitted to the CICU at the Toronto General Hospital from 2014 to 2020 were studied.

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Background & Aims: Acute pancreatitis (AP) is a frequent indication for hospitalization and may present with varying degrees of severity. AP often coincides with hepatic disease, yet the impact of liver cirrhosis (LC) on the course of AP is uncertain, and early identification of patients at risk for complications remains challenging. We aimed to assess the impact of LC on the development of pancreatic and extra-pancreatic complications of AP, and to identify predictors of adverse outcomes in cirrhotic patients.

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  • Fibrosis is responsible for about 45% of deaths in western countries and significantly affects outcomes in chronic liver disease, but effective treatments are lacking.
  • Researchers explored the role of damage-associated molecular patterns (DAMPs) and identified the purinergic receptor P2Y14 as a key receptor in liver fibrosis, particularly in hepatic stellate cells (HSCs).
  • The study showed that ligands for P2Y14 are released during cell death and activate fibrogenic processes, indicating this receptor could be a potential target for antifibrotic therapies in liver injury.
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High-mobility group box 1 (HMGB1) is a nucleoprotein with proinflammatory functions following cellular release during tissue damage. Moreover, antibody-mediated HMGB1 neutralization alleviates lipopolysaccharide (LPS)-induced shock, suggesting a role for HMGB1 as a superordinate therapeutic target for inflammatory and infectious diseases. Recent genetic studies have indicated cell-intrinsic functions of HMGB1 in phagocytes as critical elements of immune responses to infections, yet the role of extracellular HMGB1 signaling in this context remains elusive.

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Background: Among patients with cirrhosis, candidate selection and timing of liver transplantation (LT) remain problematic. Acute-on-chronic liver failure (ACLF) is a severe complication of cirrhosis with excessive short-term mortality rates under conservative therapeutic measures. The role of LT in the management of ACLF is uncertain.

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Background: Nasoalveolar molding (NAM) is a widely used presurgical orthopedic device, despite disputes over its effectiveness. This study compares the outcomes after cleft lip and nose repair in patients who received NAM versus those who underwent passive alveolar molding with lip taping.

Methods: A retrospective review of patients with complete unilateral cleft lip and palate who received either NAM (n = 16) or passive molding (n = 10) treatments was conducted.

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We examine the effects of Covid-19 and related restrictions on individuals with dependent children in Germany. We specifically focus on the role of day care center and school closures, which may be regarded as a "disruptive exogenous shock" to family life. We make use of a novel representative survey of parental well-being collected in May and June 2020 in Germany, when schools and day care centers were closed but while other measures had been relaxed and new infections were low.

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Background: Heart failure (HF) is a common reason for admission to the cardiac intensive care unit. We sought to identify the role of an HF consultation service in improving the management of this patient population.

Methods: We identified all adult patients admitted to the cardiac intensive care unit (2014-2015) at the University Health Network with a diagnosis of acute decompensated HF ± cardiogenic shock (CS).

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Regenerative responses predispose tissues to tumor formation by largely unknown mechanisms. High-mobility group box 1 (HMGB1) is a danger-associated molecular pattern contributing to inflammatory pathologies. We show that HMGB1 derived from keratinocytes, but not myeloid cells, delays cutaneous wound healing and drives tumor formation.

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This study analyses the relationship between life expectancy and parental education. Based on data from the German Socio-Economic Panel Study and survival analysis models, we show that maternal education is related to children's life expectancy - even after controlling for children's own level of education. This applies equally to daughters and sons as well as to children's further life expectancies examined at age 35 to age 65.

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Background: Acute-on-chronic liver failure (ACLF) is a severe complication of liver cirrhosis associated with excess short-term mortality rates. Orthotopic liver transplantation (OLT) is a potentially life-saving therapeutic modality for acute-on-chronic liver failure patients, but selection of transplant candidates with an acceptable post-transplant outcome is difficult.

Aim: To assess the risk of liver transplantation in patients with ACLF, and to determine parameters that predict post-transplant survival in this patient cohort.

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Cell death is a key driver of disease progression and carcinogenesis in chronic liver disease (CLD), highlighted by the well-established clinical correlation between hepatocellular death and risk for the development of cirrhosis and hepatocellular carcinoma (HCC). Moreover, hepatocellular death is sufficient to trigger fibrosis and HCC in mice. However, the pathways through which cell death drives CLD progression remain elusive.

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Purpose: Various palatoplasty techniques have limited incisions in the hard palate due to concerns that these incisions may limit maxillary growth. There is little convincing long-term evidence to support this. Our purpose is to determine incisal relationships, an indicator for future orthognathic procedure, in patients after repair of an isolated cleft of the secondary palate.

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Damage-associated molecular patterns (DAMPs) are released in response to cell death and stress, and are potent triggers of sterile inflammation. Recent evidence suggests that DAMPs may also have a key role in the development of cancer, as well as in the host response to cytotoxic anti-tumor therapy. As such, DAMPs may exert protective functions by alerting the immune system to the presence of dying tumor cells, thereby triggering immunogenic tumor cell death.

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Background & Aims: Current guidelines recommend immunosuppressive treatment (IT) in patients with primary sclerosing cholangitis (PSC) and elevated aminotransferase levels more than five times the upper limit of normal and elevated serum IgG-levels above twice the upper limit of normal. Since there is no evidence to support this recommendation, we aimed to assess the criteria that guided clinicians in clinical practice to initiate IT in patients with previously diagnosed PSC.

Methods: This is a retrospective analysis of 196 PSC patients from seven German hepatology centers, of whom 36 patients had received IT solely for their liver disease during the course of PSC.

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Celiac disease (CD) is an immune-mediated enteropathy triggered by gluten in genetically susceptible individuals. The recent increase in CD incidence suggests that additional environmental factors, such as intestinal microbiota alterations, are involved in its pathogenesis. However, there is no direct evidence of modulation of gluten-induced immunopathology by the microbiota.

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Background: Internationally the need for neonatal ECMO is decreasing and the Extracorporeal Life Support Organization (ELSO) recommends that centres providing neonatal ECMO should treat at least 6 children per year.

Method: After a one-year training programme and preparation of the clinical application, neonatal ECMO was established and subsequently 41 infants [median age 1 day (1-172 days), median weight 3.25 kg (1.

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