Background: Renal cell carcinoma (RCC) accounts for about 13.5% of all urological tumors. Healthcare research analyzes whether treatment recommendations from controlled studies or guidelines are being implemented in routine care.
View Article and Find Full Text PDFElevation of the plasma levels of ()-lactate (Lac) and/or ()-beta-hydroxybutyrate (BHB) occurs naturally in response to strenuous exercise and prolonged fasting, respectively, resulting in millimolar concentrations of these two metabolites. It is increasingly appreciated that Lac and BHB have wide-ranging beneficial physiological effects, suggesting that novel nutritional solutions, compatible with high-level and/or sustained consumption, which allow direct control of plasma levels of Lac and BHB, are of strong interest. In this study, we present a molecular hybrid between ()-lactate and the BHB-precursor ()-1,3-butanediol in the form of a simple ester referred to as .
View Article and Find Full Text PDFHow species thrive in a wide range of environments is a major focus of evolutionary biology. For many species, limited genetic diversity or gene flow among habitats means that phenotypic plasticity must play an important role in their capacity to tolerate environmental heterogeneity and to colonize new habitats. However, we have a limited understanding of the molecular components that govern plasticity in ecologically relevant phenotypes.
View Article and Find Full Text PDFFingermarks are frequently collected at crime scenes by using gelatin lifters for preservation and transport of the marks to a forensic laboratory for inspection. The gelatin lifters preserve both the imprint of the fingermark pattern necessary for identification purposes and the chemical residue of the mark potentially useful for profiling the person who left the fingermark. The fingermark patterns are traditionally recorded using photography/optical imaging, but methods for chemical analysis of fingermark residues on gelatin lifters are scarce.
View Article and Find Full Text PDFResearch Question: How is the production of progesterone (P) and 17-hydroxy-P (17-OH-P) regulated between theca cells and granulosa cells during the follicular phase, during ovulation and after transformation into a corpus luteum?
Design: Three cohorts were examined: (i) 31 women undergoing natural and stimulated cycles, with serum hormone measurements taken every 3 days; (ii) 50 women undergoing ovarian stimulation, with hormone concentrations in serum and follicular fluid assessed at five time points during final follicle maturation; and (iii) 12 women undergoing fertility preservation, with hormone concentrations evaluated via the follicular fluid of small antral follicles.
Results: In the early follicular phase, theca cells primarily synthesized 17-OH-P while granulosa cells produced limited P, maintaining the P:17-OH-P ratio <1. As follicles reached follicle selection at a diameter of approximately 10 mm, P synthesis in granulosa cells was up-regulated, but P was mainly accumulated in follicular fluid.
Background: The ketone body 3-hydroxybutyrate (3-OHB) increases cardiac output (CO) by 35% to 40% in healthy people and people with heart failure. The mechanisms underlying the effects of 3-OHB on myocardial contractility and loading conditions as well as the cardiovascular effects of its enantiomeric forms, D-3-OHB and L-3-OHB, remain undetermined.
Methods And Results: Three groups of 8 pigs each underwent a randomized, crossover study.
The cGAS-STING pathway plays a crucial role in anti-tumoral responses by activating inflammation and reprogramming the tumour microenvironment. Upon activation, STING traffics from the endoplasmic reticulum (ER) to Golgi, allowing signalling complex assembly and induction of interferon and inflammatory cytokines. Here we report that cGAMP stimulation leads to a transient decline in ER cholesterol levels, mediated by Sterol O-Acyltransferase 1-dependent cholesterol esterification.
View Article and Find Full Text PDFPattern recognition receptors (PRRs) induce host defense but can also induce exacerbated inflammatory responses. This raises the question of whether other mechanisms are also involved in early host defense. Using transcriptome analysis of disrupted transcripts in herpes simplex virus (HSV)-infected cells, we find that HSV infection disrupts the hypoxia-inducible factor (HIF) transcription network in neurons and epithelial cells.
View Article and Find Full Text PDFStudy Question: What is the temporal activity and the concentration in follicular fluid (FF) of the anti-inflammatory steroid cortisol during the ovulatory process in humans?
Summary Answer: Intrafollicular concentrations of cortisol become massively upregulated close to ovulation concomitant with an exceptionally high biological activity securing a timely and efficient termination of inflammatory processes.
What Is Known Already: Ovulation has been described as a local, controlled inflammatory process resulting in the degeneration of the follicle wall which facilitate oocyte extrusion. Ovulation also affects the glucocorticoid metabolism of granulosa cells (GCs) and although de novo synthesis of cortisol only occurs in the adrenal cortex, the mid-cycle surge has been shown to induce a change from high expression of HSD11B2, inactivating cortisol to cortisone, to high expression of HSD11B1 which reversibly catalyses cortisol production from cortisone.
Aims: In patients with chronic heart failure with reduced ejection fraction (HFrEF), myocardial ketone metabolism is increased and short-term treatment with the ketone body 3-hydroxy butyrate (3-OHB) has beneficial haemodynamic effects. In patients with HFrEF, we investigated whether the level of circulating 3-OHB predicted all-cause mortality and sought to identify correlations between patient characteristics and circulating 3-OHB levels.
Methods And Results: We conducted a cohort study in 218 patients with HFrEF.
The idea that emotions can influence pain is generally recognized. However, a synthesis of the numerous individual experimental studies on this subject is lacking. The aim of the present systematic review and meta-analysis was to synthesize the existing evidence on the effect of experimental emotion induction on experimental pain in nonclinical adults.
View Article and Find Full Text PDFArctic ground squirrels are small mammals that experience physiological extremes during the hibernation season. Body temperature rises from 1°C to 40°C during interbout arousal and requires tight thermoregulation to maintain rheostasis. Tissues from wild-caught Arctic ground squirrels were sampled over 9 months to assess the expression of proteins key to thermogenic regulation.
View Article and Find Full Text PDFJ Am Heart Assoc
June 2023
Background The ketone body 3-hydroxybutyrate (3-OHB) increases cardiac output (CO) in patients with heart failure through unknown mechanisms. 3-OHB activates the hydroxycarboxylic acid receptor 2 (HCA), which increases prostaglandins and suppresses circulating free fatty acids. We investigated whether the cardiovascular effects of 3-OHB involved HCA activation and if the potent HCA-stimulator niacin may increase CO.
View Article and Find Full Text PDFThe German Society of Uro-Oncologists ("Deutsche Uro-Onkologen e.V.", d-uo) provides a national registry for urothelial cancer (UroNat) and a national registry for prostate cancer (ProNAT).
View Article and Find Full Text PDFAt the beginning of 2017, the German Society of Uro-Oncologists (d-uo) had the idea of designing a documentation platform that would enable d-uo members to report cancer cases to the cancer registry and transfer data to d-uo's own database - without a double effort. The cancer registry reimburses the first notification of a tumour with €18. As the only provider, d-uo reimburses its members for the documentation effort associated with the additional notification to d-uo with a further €18.
View Article and Find Full Text PDFThe current cancer registry notification, which was introduced in Germany as a mandatory institution in 2015, has its starting point in the National Cancer Plan of 2008. Other milestones include the Federal Cancer Registry Data Act (2009), the Cancer Early Detection and Registry Act (2013), the Uniform Oncological Basic Data Set (2014/2021) with its modules (e.g.
View Article and Find Full Text PDFIntroduction: One in five breast cancer (BC) survivors are affected by persistent pain years after completing primary treatment. While the efficacy of psychological interventions for BC-related pain has been documented in several meta-analyses, reported effect sizes are generally modest, pointing to a need for optimisation. Guided by the Multiphase Optimization Strategy, the present study aims to optimise psychological treatment for BC-related pain by identifying active treatment components in a full factorial design.
View Article and Find Full Text PDFUntargeted metabolomics is the study of all detectable small molecules, and in geroscience, metabolomics has shown great potential to describe the biological age-a complex trait impacted by many factors. Unfortunately, the sample sizes are often insufficient to achieve sufficient power and minimize potential biases caused by, for example, demographic factors. In this study, we present the analysis of biological age in ~10,000 toxicologic routine blood measurements.
View Article and Find Full Text PDFBackground: While Cognitive Behavioral Therapy (CBT) is recommended as first-line treatment for depression, a significant minority do not show an adequate treatment response. Despite evidence for the efficacy of Mindfulness-Based Therapies (MBT) both in treating current depression and preventing relapse, it remains unknown whether MBT and CBT are equivalent in the treatment of current depression.
Methods: Five databases were searched for randomized controlled trials (RCTs) directly comparing MBT with CBT and including depression as primary or secondary outcome.
Introduction: Patients with bone metastasis due to prostate cancer often present allover reduced bone mineral density. Additionally, patients with bone metastatic castration-resistant prostate cancer (mCRPC) have a relevant risk for skeletal-related events (SRE). We herein present real-world data (RWD) regarding osteoprotection in mCRPC patients with bone metastasis treated by German urologists in private practice.
View Article and Find Full Text PDFIntroduction: Patients with prostate cancer often present with reduced bone mineral density. We herein present real-world data (RWD) regarding osteoprotection in patients with non-metastatic hormone-sensitive prostate cancer (nmHSPC) receiving androgen deprivation therapy (ADT) treated by German urologists in private practice.
Material And Methods: This is a questionnaire-based study including members of d-uo ("Deutsche Uro-Onkologen", German uro-oncologists).