- Organ Transplantation Techniques and Outcomes
- Hepatocellular Carcinoma Treatment and Prognosis
- Liver physiology and pathology
- Cardiac, Anesthesia and Surgical Outcomes
- Liver Disease Diagnosis and Treatment
- Renal Transplantation Outcomes and Treatments
- Hernia repair and management
- Pancreatic and Hepatic Oncology Research
- Liver Disease and Transplantation
- Appendicitis Diagnosis and Management
- Colorectal Cancer Surgical Treatments
- Surgical Simulation and Training
- Organ Donation and Transplantation
- Xenotransplantation and immune response
- Cholangiocarcinoma and Gallbladder Cancer Studies
- Gallbladder and Bile Duct Disorders
- Transplantation: Methods and Outcomes
- Advanced Radiotherapy Techniques
- Abdominal Trauma and Injuries
- Pancreatic function and diabetes
- Pediatric Hepatobiliary Diseases and Treatments
- Abdominal Surgery and Complications
- Pelvic and Acetabular Injuries
- Trauma and Emergency Care Studies
- Gastric Cancer Management and Outcomes
University Hospital of Bern
2015-2024
University of Bern
2015-2024
Heidelberg University
2023-2024
University Hospital Heidelberg
2023-2024
Chirurgische Universitätsklinik Heidelberg
1994-2024
University of Cologne
2007-2024
Universitätsklinikum des Saarlandes
2023
Medical University of Vienna
2008-2021
Charité - Universitätsmedizin Berlin
2020
University Hospital Leipzig
2020
Simple Summary:The cartilage-to-bone transition is an essential process in healthy bone development and repair.Our previous work has shown that when the cells found within human periosteum (the membrane surrounding bone) are cultured serum (HS) as opposed to standard animal (FBS), these have greater bone-forming capacity assessed ectopic assay nude mice.What not understood molecular interactions permitted this enhanced biological potency.Herein, virtual networks created identify key proteins...
We analyzed databases spanning 50 years, which included retrospective alveolar echinococcosis (AE) case finding studies and of the 3 major centers for treatment AE in Switzerland. A total 494 cases were recorded. Annual incidence per 100,000 population increased from 0.12-0.15 during 1956-1992 a mean 0.10 1993-2000 to 0.26 2001-2005. Because clinical stage disease did not change between observation periods, this increase cannot be explained by improved diagnosis. Swiss hunting statistics...
Macrophages seal 'em in the coelom GATA6 + macrophages resident body cavities exhibit both phagocytic and repair functions. However, mechanisms by which these cells can identify migrate to sites of injury have remained unclear. Using intravital imaging mouse peritoneal cavities, Zindel et al. report that rapidly assemble clot-like structures a process strongly analogous thrombosis (see Perspective Herrick Allen). The formation aggregates requires expression macrophage scavenger receptor...
Between July 1989 and June 1991, 312 patients with blunt thoracic or abdominal injuries were examined prospectively. Sonographic examination was performed by surgeons in the emergency room using a mobile ultrasound unit. In 113 (36.2%) cases pathologic findings demonstrated sonographically. These included 47 of hemothorax, 11 pericardial effusions, 52 intra-abdominal fluid, 24 lesions organs, 10 retroperitoneal hematoma. Physical positive 96 (30.8%), negative 63 (20.2%), equivocal 153...
Quiescent endothelial cells (EC) regulate blood flow and prevent intravascular thrombosis. This latter effect is mediated in a number of ways, including expression by EC thrombomodulin heparan sulfate, both which are lost from the surface as part activation response to proinflammatory cytokines. Loss these anticoagulant molecules potentiates procoagulant properties injured vasculature. An additional thromboregulatory factor, ATP diphosphohydrolase (ATPDase; designated 3.6.1.5) also expressed...
Hypermutations in hepatitis B virus (HBV) DNA by APOBEC3 cytidine deaminases have been detected vitro and vivo, APOBEC3G (A3G) APOBEC3F (A3F) shown to inhibit the replication of HBV vitro, but presumably low or even absent hepatic expression these enzymes has raised question as their physiological impact on replication. We show that normal human liver expresses mRNAs APOBEC3B (A3B), APOBEC3C (A3C), A3F, A3G. In primary hepatocytes, interferon alpha (IFN-α) stimulated up 14-fold, A3G, A3B...
In Brief Objective: To compare clinical outcomes after laparoscopic cholecystectomy (LC) for acute cholecystitis performed at various time-points hospital admission. Background: Symptomatic gallstones represent an important public health problem with LC the treatment of choice. is increasingly offered cholecystitis, however, optimal time-point in this setting remains a matter debate. Methods: Analysis was based on prospective database Swiss Association Laparoscopic and Thoracoscopic Surgery...
Sirtuins and hypoxia-inducible transcription factors (HIF) have well-established roles in regulating cellular responses to metabolic oxidative stress. Recent reports linked these two protein families by demonstrating that sirtuins can regulate the activity of HIF-1 HIF-2. Here we investigated role SIRT1, a NAD+-dependent deacetylase, regulation hypoxic conditions. Our results show hepatocellular carcinoma (HCC) cell lines, hypoxia did not alter SIRT1 mRNA or expression, whereas it...
Abstract Background The surgical treatment of liver tumours relies on precise localization the lesions and detailed knowledge patient‐specific vascular biliary anatomy. Detailed three‐dimensional (3D) anatomical information facilitates complete tumour removal while preserving a sufficient amount functional tissue. Methods We present an easy to use, clinically applicable navigation system for efficient visualization tool guidance during surgery. Accurate instrument within 3D planning models...
Abstract Background The aim of this pilot study was to evaluate the noise level in an operating theatre as a possible surrogate marker for intraoperative behaviour, and detect any correlation between sound subsequent surgical-site infection (SSI). Methods measured during 35 elective open abdominal procedures. intensity registered digitally decibels (dB) every second. A standard questionnaire used behaviour surgical team operation. primary outcome parameter SSI rate within 30 days surgery....
Abstract The liver has an intrinsic capacity to regenerate in response injury or surgical resection. Nevertheless, circumstances which hepatocytes are unresponsive proliferative signals result impaired regeneration and hepatic failure. As the Hippo pathway a canonical role maintenance of size, we investigated whether it could serve as therapeutic target support regeneration. Using standard two‐thirds partial hepatectomy (PH) model young aged mice, demonstrate that is modulated across phases...
Sirtuins (SIRT1-7) are a highly conserved family of NAD(+)-dependent enzymes that control the activity histone and nonhistone regulatory proteins. SIRT1 is purposed to promote longevity suppress initiation some cancers. Nevertheless, reported function as tumor suppressor well an oncogenic protein. Our data show compared with normal liver or surrounding tissue, strongly overexpressed in human hepatocellular carcinoma (HCC). In addition, HCC cell lines (Hep3B, HepG2, HuH7, HLE, HLF, HepKK1,...
Bacterial spillage into a sterile environment following intestinal hollow-organ perforation leads to peritonitis and fulminant sepsis. Outcome of sepsis critically depends on macrophage activation by extracellular ATP-release associated autocrine signalling via purinergic receptors. mechanisms, however, are poorly understood. Here, we show that TLR-2 −4 agonists trigger Connexin-43 hemichannels in macrophages leading poor survival. In humans, was upregulated isolated from the peritoneal...
Abstract Surgical skills are associated with clinical outcomes. To improve surgical and thereby reduce adverse outcomes, continuous training feedback is required. Currently, assessment of a manual time-consuming process which prone to subjective interpretation. This study aims automate skill in laparoscopic cholecystectomy videos using machine learning algorithms. address this, three-stage method proposed: first, Convolutional Neural Network was trained identify localize instruments. Second,...
AimThis multi-centre prospective cohort study aimed to investigate non-inferiority in patients' overall survival when treating potentially resectable colorectal cancer liver metastasis (CRLM) with stereotactic microwave ablation (SMWA) as opposed hepatic resection (HR).MethodsPatients no more than 5 CRLM larger 30 mm, deemed eligible for both SMWA and at the local multidisciplinary team meetings, were deliberately treated (study group). The contemporary control group consisted of patients...
To become insulin independent, patients with type 1 diabetes mellitus require transplantation of at least two donor pancreata because massive beta-cell loss in the early post-transplantation period. Many studies describing introduction new immunosuppressive protocols have shown that this is due to not only immunological events but also nonimmunological factors. test what extent hypoxia may contribute graft loss, we analyzed occurrence apoptotic and expression hypoxia-inducible factor...
Background. Patients with primary sclerosing cholangitis (PSC) and inflammatory bowel disease (IBD) may have an increased risk of developing colorectal cancer (CRC) after liver transplantation (LT). We evaluated our patients PSC LT to identify factors for CRC its impact on survival. Methods. A total 152 (108 men, 100 IBD) who underwent 173 LTs between 1986 May 2000 were analyzed in three groups: (1) without IBD (n=52); (2) colectomy (pre-LT at LT) (n=17, pre-LT 13 simultaneous four); (3)...
Rejection of guinea pig cardiac grafts in rats depleted complement takes place 3-4 days and involves progressive mononuclear cell infiltration cytokine expression, fibrin antibody deposition, endothelial up-regulation adhesion procoagulant molecules, a process termed delayed xenograft rejection (DXR). The relative contribution each effector mechanism the role T cells this complex are unknown, although small numbers interleukin (IL) 2 receptor-positive present at time rejection. We...
The effectiveness of various appendiceal stump closure methods has not been evaluated systematically. aim this study was to compare the morbidity by stapling or use endoloops.A non-concurrent cohort prospectively acquired data performed. primary outcome variable rate intra-abdominal surgical-site infection. Secondary measures were complications, duration intervention, hospital stay, readmission and difference in direct costs operation.Staples used 60.5 per cent endoloops 39.5 6486 patients...