Gastric Stem Cell Biology and Helicobacter pylori Infection.

Helicobacter pylori colonizes the human gastric mucosa and persists lifelong. An interactive network between the bacteria and host cells shapes a unique microbial niche within gastric glands that alters epithelial behavior, leading to pathologies such as chronic gastritis and eventually gastric cancer. Gland colonization by the bacterium initiates aberrant trajectories by inducing long-term inflammatory and regenerative gland responses, which involve various specialized epithelial and stromal cells.

Association of Helicobacter pylori Positivity With Risk of Disease and Mortality.

Introduction: Helicobacter pylori colonizes the human stomach. Infection causes chronic gastritis and increases the risk of gastroduodenal ulcer and gastric cancer. Its chronic colonization in the stomach triggers aberrant epithelial and inflammatory signals that are also associated with systemic alterations.

Responses of gastric epithelial stem cells and their niche to infection.

() are gram-negative bacteria that are able to colonize and persist in the stomach. Gastric cancer is tightly linked to chronic infection with this bacterium. Research over the last decades has illuminated the molecular interactions between and host cells.

Erratum to "Expression Analysis of Fibronectin Type III Domain-Containing (FNDC) Genes in Inflammatory Bowel Disease and Colorectal Cancer".

[This corrects the article DOI: 10.1155/2019/3784172.].

Recent Advances and the Potential for Clinical Use of Autofluorescence Detection of Extra-Ophthalmic Tissues.

The autofluorescence (AF) characteristics of endogenous fluorophores allow the label-free assessment and visualization of cells and tissues of the human body. While AF imaging (AFI) is well-established in ophthalmology, its clinical applications are steadily expanding to other disciplines. This review summarizes clinical advances of AF techniques published during the past decade.

Expression Analysis of Fibronectin Type III Domain-Containing (FNDC) Genes in Inflammatory Bowel Disease and Colorectal Cancer.

Background: Fibronectin type III domain-containing () proteins fulfill manifold functions in tissue development and regulation of cellular metabolism. was described as anti-inflammatory factor, upregulated in inflammatory bowel disease (IBD). signaling includes direct cell-cell interaction as well as release of bioactive peptides, like shown for or .

Identification of serological markers for pre- and postoperative fasting periods.

Background & Aims: Prolonged preoperative fasting periods lead to catabolic states and decelerate recovery after surgery. Valid plasma markers reflecting the patients' metabolic state may improve tailored nutrition support before surgery. Within this study, we sought to advance the knowledge on fasting time-sensitive plasma markers that allow the metabolic characterisation of surgical patients for an optimised preoperative metabolic preparation.

Hepatic CYP1A2 activity in liver tumors and the implications for preoperative volume-function analysis.

Dynamic liver function assessment by the [C]methacetin maximal liver function capacity (LiMAx) test reflects the overall hepatic cytochrome -450 (CYP) 1A2 activity. One proven strategy for preoperative risk assessment in liver surgery includes the combined assessment of the dynamic liver function by the LiMAx test, the volumetric analysis of the liver, and calculation of future liver remnant function. This so-called volume-function analysis assumes that the remaining CYP1A2 activity in any tumor lesion is zero.

Autofluorescence: A potential pitfall in immunofluorescence-based inflammation grading.

Immunofluorescence (IF) staining of paraffin-embedded tissues is a frequently used method to answer research questions or even detect the abundance of a certain protein for diagnostic use. However, the signal originating from specific antibody-staining might be distorted by autofluorescence (AF) of the assessed tissue. Although the AF phenomenon is well known, its presence is often neglected by insufficient staining controls.