Silent ACTH cell adenoma in coincidence with granulomatous hypophysitis--a case report.

A 44-year-old male suffered from an inactive pituitary adenoma measuring 20mm in computed tomography (CT) scan and nuclear magnetic resonance tomography (NMR). The tumor was surgically resected via the transnasal-transsphenoidal route. Surgical specimens revealed a typical, sparsely granulated adrenocorticotropic hormone (ACTH) cell adenoma, but also a granulomatous inflammation mostly in the periphery of the tumor, corresponding to a granulomatous hypophysitis.

Nuclear beta-catenin accumulation associates with epithelial morphogenesis in craniopharyngiomas.

Activation of the Wnt/wingless signalling cascade is a key mechanism in developmental morphogenesis, whereas aberrant nuclear accumulation of beta-catenin in adult tissues seems to be associated with neoplastic transformation and tumour progression. Adamantinomatous craniopharyngiomas carry activating mutations in exon 3 of the beta-catenin gene, which results in a distinct pattern of nuclear beta-catenin accumulation in up to 95% of respective tumour specimens. To better characterise the impact of nuclear beta-catenin aggregation in these neoplasms, we systematically examined epithelial differentiation and cell cycle-associated molecules in accumulating compared to non-accumulating tumour cell clusters using a cohort of 65 adamantinomatous craniopharyngiomas.

Alveolar rhabdomyosarcoma of the clivus with intrasellar expansion: Case report.

Rhabdomyosarcomas are common tumors of the head and neck region in children. However, a primarily intracranial localization of this tumor entity is rare. We report on a 3-year-old boy presenting with double vision due to left VI (th) nerve palsy.

Nuclear beta-catenin accumulation as reliable marker for the differentiation between cystic craniopharyngiomas and rathke cleft cysts: a clinico-pathologic approach.

Clinical and histopathologic differentiation of cystic lesions from the sellar region, that is, craniopharyngiomas (CPs) and Rathke cleft cysts (RCCs), is challenging and has paramount importance with respect to variable clinical manifestation and adapted surgical treatment strategies in both entities. Here, we retrospectively evaluated clinico-pathologic findings in 81 patients presenting with a cystic tumor located in the sellar region. All patients underwent transsphenoidal or transcranial resections.

Analogical reasoning in handling emerging technologies: the case of umbilical cord blood biobanking.

How are we individually and as a society to handle new and emerging technologies? This challenging question underlies much of the bioethical debates of modern times. To address this question we need suitable conceptions of the new technology and ways of identifying its proper management and regulation. To establish conceptions and to find ways to handle emerging technologies we tend to use analogies extensively.

Teaching old dogs new tricks: the role of analogies in bioethical analysis and argumentation concerning new technologies.

New medical technologies provide us with new possibilities in health care and health care research. Depending on their degree of novelty, they may as well present us with a whole range of unforeseen normative challenges. Partly, this is due to a lack of appropriate norms to perceive and handle new technologies.

Analysis and cryopreservation of hematopoietic stem and progenitor cells from umbilical cord blood.

Background: Umbilical cord blood (UCB) is an important source of hematopoietic stem and progenitor cells (HSC/HPC) for the reconstitution of the hematopoietic system after clinical transplantation. Cryopreservation of these cells is critical for UCB banking and transplantation as well as for research applications by providing readily available specimens. The objective of this study was to optimize cryopreservation conditions for CD34+ HSC/HPC from UCB.

Surgical treatment of recurrent Cushing's disease.

Objective: The aim of this study was to evaluate the role of transsphenoidal selective adenomectomy alone or in combination with adjuvant therapy in treatment of recurrent Cushing's disease.

Methods: A total of 16 patients with recurrent Cushing's disease underwent reoperation, 15 via a transsphenoidal approach and one via a combined transsphenoidal/transcranial approach. Selective adenomectomies were performed in 13 patients and hemihypophysectomies were performed in three patients.

[The endovenous laser therapy of varicose veins--substantial innovation or expensive playing?].

Introduction: The aim of the study was to evaluate the efficiency of the endovenous use of laser for treatment of varicose veins. In particular the influence of laser energy on the perivenous temperature, the postoperative clinical and duplex ultrasound course was taken into account.

Method: The patients were divided into two groups.

Mood fluctuations in people putatively at risk for bipolar disorders.

Objectives: The dysregulation of the Behavioural Activation System (BAS) is discussed as a vulnerability marker for bipolar disorders, resulting in fluctuations of activity and mood. People putatively at risk for bipolar disorders (BD) should therefore show mood fluctuations.

Method: Using the "Hypomanic Personality Scale" (HPS) three groups of young adults with high (N=17), medium (N=19), and low scores (N=18) were selected and completed a 28-day diary including CES-D and PANAS.

Treatment of Cushing's disease: a retrospective clinical study of the latest 100 cases.

We evaluate the current role of microsurgery for Cushing's disease (CD) and the efficacy of adjuvant treatment modalities. The standard treatment for primary CD remains transsphenoidal surgery followed by adjuvant therapy in cases with persisting hypercortisolism. Moderately severe cases are treated with radiotherapy, while in the very severe adrenalectomy is performed.

Abundant hypermethylation of SOCS-1 in clinically silent pituitary adenomas.

Janus kinase (JAK)/signal transducers and activators of transcription (STAT) cascade are required for cytokines, growth factors, G-proteins and hormones (growth hormone and prolactin). Gatekeepers in this pathway are the suppressor of cytokine signalling (SOCS) family of proteins. Their expression level is epigenetically regulated by DNA methylation.

Filter Buffy Coats (FBC): a source of peripheral blood leukocytes recovered from leukocyte depletion filters.

In compliance with federal regulations, blood banks routinely use leukocyte depletion filters to eliminate contaminating leukocytes from blood products such as red blood cell and platelet concentrates. We developed and optimized conditions to elute leukocytes adsorbed to these filters; resulting in leukocyte suspensions which we termed Filter Buffy Coats (FBCs). These Filter Buffy Coats can replace standard buffy coats for various research applications.

Assessing the dysregulation of the Behavioral Activation System: the Hypomanic Personality Scale and the BIS-BAS scales.

We discuss the Hypomanic Personality Scale (Hyp; Eckblad & Chapman, 1986) and the Behavioral Inhibition System (BIS-BAS; Carver & White, 1994) and Behavioral Activation System (BAS; Gray, 1991) Scales as risk factors for bipolar disorders. The dysregulation of the BAS is considered to be central and results in higher variability in mood. Therefore, we examined how those scales are associated with mood fluctuations.

Simplified models of the relationship between health and disease.

The concepts of health and disease are crucial in defining the aim and the limits of modern medicine. Accordingly it is important to understand them and their relationship. However, there appears to be a discrepancy between scholars in philosophy of medicine and health care professionals with regard to these concepts.

Characterisation of operation conditions and online monitoring of physiological culture parameters in shaken 24-well microtiter plates.

A new online monitoring technique to measure the physiological parameters, dissolved oxygen (DO) and pH of microbial cultures in continuously shaken 24-well microtiter plates (MTP) is introduced. The new technology is based on immobilised fluorophores at the bottom of standard 24-well MTPs. The sensor MTP is installed in a sensor dish reader, which can be fixed on an orbital shaker.

Optical molecular imaging of lymph nodes using a targeted vascular contrast agent.

We develop a highly specific antibody-dye conjugate for optical imaging of peripheral lymph nodes. The contrast agent consists of the monoclonal antibody recognizing endothelial ligands for the lymphocyte homing receptor L-selectin, MECA-79, and a near-infrared (near-IR) fluorescent indotricarbocyanine dye. The targeting and biodistribution behavior of MECA-79 is studied after radio-iodination and intravenous injection into mice demonstrating specific uptake in lymph nodes and accumulation in high endothelial venules (HEV).

Toward a procedure for integrating moral issues in health technology assessment.

Objectives: Although ethics has been on the agenda in health technology assessment (HTA) since its inception, the integration of moral issues is still not standard and is performed in a vast variety of ways. Therefore, there is a need for a procedure for integrating moral issues in HTA.

Methods: Literature review of existing approaches together with application of various theories in moral philosophy and axiology.

Bilateral subdural haematomata and lumbar pseudomeningocele due to a chronic leakage of liquor cerebrospinalis after a lumbar discectomy with the application of ADCON-L gel.

The anti-adhesion gel ADCON-L has been available since the end of the 1990s. During disc surgery it can be applied to the spinal nerve roots and the dura mater spinalis in order to inhibit fibroblast migration and thus avoid postoperative adhesions or excessive keloids, respectively. Due to the way ADCON-L works, inadvertent, intraoperational dural lesions may stay open much longer than usual because ADCON-L inhibits the natural healing process.

Ethics of palliative surgery in patients with cancer.

Background: Surgery is an important palliative method for patients with advanced malignant disease. In addition to concerns related to clinical decision making, various moral challenges are encountered in palliative surgery. Some of these relate to the patients and their illness, others to the surgeons, their attitudes, skills and knowledge base.