[Anorexia nervosa: does the incidence increase during the coronavirus pandemic?].

Since the beginning of the coronavirus pandemic and the associated lockdown measures, the number of children treated in this children's hospital for eating disorders and in particular anorexia nervosa has significantly increased.An increased focus on the control of body weight with restrictive eating habits or otherwise induced weight loss (sport) can compensate for fears of loss of control. Thinking and behavioral patterns which are typical for anorexia can be assessed as dysfunctional coping strategies of the corona pandemic in order to regain control (in the sense of a substitute structure) but also as a means of coping better with feelings of depression and anxiety.

Health Care Workers' Sick Leave due to COVID-19 Vaccination in Context With SARS-CoV-2 Infection and Quarantine-A Multicenter Cross-Sectional Survey.

Background: Reactogenicity of coronavirus disease 2019 (COVID-19) vaccines can result in inability to work. The object of this study was to evaluate health care workers' sick leave after COVID-19 vaccination and to compare it with sick leave due to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and quarantine leave.

Methods: A multicenter cross-sectional survey was conducted at Regensburg University Medical Center and 10 teaching hospitals in South-East Germany from July 28 to October 15, 2021.

[Anorexia nervosa: does the incidence increase during the coronavirus pandemic?].

Since the beginning of the coronavirus pandemic and the associated lockdown measures, the number of children treated in this children's hospital for eating disorders and in particular anorexia nervosa has significantly increased.An increased focus on the control of body weight with restrictive eating habits or otherwise induced weight loss (sport) can compensate for fears of loss of control. Thinking and behavioral patterns which are typical for anorexia can be assessed as dysfunctional coping strategies of the corona pandemic in order to regain control (in the sense of a substitute structure) but also as a means of coping better with feelings of depression and anxiety.

EGFR/Ras-induced CCL20 production modulates the tumour microenvironment.

Background: The activation of the EGFR/Ras-signalling pathway in tumour cells induces a distinct chemokine repertoire, which in turn modulates the tumour microenvironment.

Methods: The effects of EGFR/Ras on the expression and translation of CCL20 were analysed in a large set of epithelial cancer cell lines and tumour tissues by RT-qPCR and ELISA in vitro. CCL20 production was verified by immunohistochemistry in different tumour tissues and correlated with clinical data.

Failure to Thrive, Hyponatremia, Hyperkalemia - Differential Diagnostic Reflections of a Rare Genetic Disease.

Pseudohypoaldosteronism type I is a rare genetic disease of mineralocorticoid resistance that typically manifests in neonatal age. The patients are diagnosed with failure to thrive, dehydration, polyuria, vomiting, hyperkalemia, hyponatremia as well as potential metabolic acidosis accompanied by elevated values for serum aldosterone and renin. The disease is subdivided into a systemic and a renal type.

[Neonatal Behçet Disease].

Background: Behçet's disease is a multi-system disease with inflammatory infestations, in particular of the small and middle arteries and veins. Histologically, the disease presents with the image of leukocytoclastic vasculitis. The etiology of Behçet disease is unknown, but genetic factors are discussed of playing a role in its pathogenesis.

Neural peptidase endothelin-converting enzyme 1 regulates endothelin 1-induced pruritus.

In humans, pruritus (itch) is a common but poorly understood symptom in numerous skin and systemic diseases. Endothelin 1 (ET-1) evokes histamine-independent pruritus in mammals through activation of its cognate G protein-coupled receptor endothelin A receptor (ETAR). Here, we have identified neural endothelin-converting enzyme 1 (ECE-1) as a key regulator of ET-1-induced pruritus and neural signaling of itch.

Serotonergic overstimulation in a preterm infant after sertraline intake via breastmilk.

The selective serotonin reuptake inhibitor (SSRI) sertraline is widely used as an antidepressant agent during pregnancy and lactation because of its low placental transfer and low level of excretion into breastmilk. Symptoms such as neonatal abstinence syndrome and serotonergic overstimulation have been reported after in utero exposure to SSRIs. These symptoms are self-limiting and usually peak within the first 48 hours after birth.

Distribution and expression of non-neuronal transient receptor potential (TRPV) ion channels in rosacea.

Rosacea is a frequent chronic inflammatory skin disease of unknown etiology. Because early rosacea reveals all characteristics of neurogenic inflammation, a central role of sensory nerves in its pathophysiology has been discussed. Neuroinflammatory mediators and their receptors involved in rosacea are poorly defined.

Neurovascular and neuroimmune aspects in the pathophysiology of rosacea.

Rosacea is a common skin disease with a high impact on quality of life. Characterized by erythema, edema, burning pain, immune infiltration, and facial skin fibrosis, rosacea has all the characteristics of neurogenic inflammation, a condition induced by sensory nerves via antidromically released neuromediators. To investigate the hypothesis of a central role of neural interactions in the pathophysiology, we analyzed molecular and morphological characteristics in the different subtypes of rosacea by immunohistochemistry, double immunofluorescence, morphometry, real-time PCR, and gene array analysis, and compared the findings with those for lupus erythematosus or healthy skin.

Role of protease-activated receptors in human skin fibrosis and scleroderma.

Proteases and their receptors have poorly understood roles in skin fibrosis and systemic scleroderma (SSc). We examined the role of protease-activated receptors (PAR(1) and PAR(2) ) in the pathophysiology of human SSc and skin fibrosis. Immunohistochemistry showed that PAR(1) immunoreactivity was positive in fibroblasts of SSc skin and healthy skin.

Giant umbilical cord edema caused by retrograde micturition through an open patent urachus.

A giant umbilical cord is a rare finding in mature newborns and originates from different developmental etiologies. We report on a case of a mature female newborn presenting a 50 × 8-cm giant umbilical cord without further malformations. Antenatal sonographic findings of a diffuse giant umbilical cord, elevated creatinine levels of 1.

LFA-1 contributes to signal I of T-cell activation and to the production of T(h)1 cytokines.

The beta(2) integrins are important for both transendothelial migration of leukocytes and T-cell activation during antigen presentation. In T cells, triggering of leukocyte functional antigen-1 (LFA-1) is required for full activation and T-helper (Th)1/Th2 differentiation. We used CD18-deficient (CD18(-/-)) mice to examine the role of LFA-1 in the activation of T cells.

Glucocorticoids induce an activated, anti-inflammatory monocyte subset in mice that resembles myeloid-derived suppressor cells.

Glucocorticoids (GC) are still the most widely used immunosuppressive agents in clinical medicine. Surprisingly, little is known about the mechanisms of GC action on monocytes, although these cells exert pro- and anti-inflammatory effects. We have shown recently that GC induce a specific monocyte phenotype with anti-inflammatory properties in humans.

Tumor immune escape by the loss of homeostatic chemokine expression.

The novel keratinocyte-specific chemokine CCL27 plays a critical role in the organization of skin-associated immune responses by regulating T cell homing under homeostatic and inflammatory conditions. Here we demonstrate that human keratinocyte-derived skin tumors may evade T cell-mediated antitumor immune responses by down-regulating the expression of CCL27 through the activation of epidermal growth factor receptor (EGFR)-Ras-MAPK-signaling pathways. Compared with healthy skin, CCL27 mRNA and protein expression was progressively lost in transformed keratinocytes of actinic keratoses and basal and squamous cell carcinomas.

Agonists of proteinase-activated receptor-2 affect transendothelial migration and apoptosis of human neutrophils.

Skin is the first barrier preventing microorganism invasion in host. Wounds destroy this defense barrier and, without an appropriate care, may lead to sepsis. Neutrophil activation and immigration plays an important role at the inflammatory stage of wound healing.

Proteinase-activated receptor-2 (PAR2): a tumor suppressor in skin carcinogenesis.

The proteinase-activated receptor PAR(2) has been demonstrated to modulate tumor growth, invasion and metastasis in various tissues. However, the role of PAR(2) in cutaneous cancerogenesis is still unknown. Here we could show a protective role of PAR(2) in the development of epidermal skin tumors: we established a mouse skin tumor model using chemically induced carcinogenesis.

Site of blood vessel damage and relevance of CD18 in a murine model of immune complex-mediated vasculitis.

How neutrophils (polymorphonuclear neutrophils, PMNs) damage vessels in leukocytoclastic vasculitis (LcV) mediated by immune complexes (ICs) is unclear. If degradative enzymes and oxygen radicals are released from PMNs while adhering to the inner side of the vessel wall, they could be washed away by the blood stream or neutralized by serum protease inhibitors. We investigated if in LcV PMNs could damage vessels from the tissue side after transmigration.