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In vitro selection of RNA aptamers against a conserved region of the Plasmodium falciparum erythrocyte membrane protein 1.

The var-gene encoding Plasmodium falciparum erythrocyte membrane protein 1 (PfEMP1) is known to play a major role in the pathogenicity of the P. falciparum parasite. The protein enables the parasite to adhere to the endothelial linings of small blood vessels (cytoadherence) as well as to non-infected erythrocytes (rosetting), thus preventing clearance from the bloodstream. The development and spre

Familial intestinal degenerative neuropathy associated with chronic intestinal pseudo-obstruction.

Background Few families with autosomal dominant forms of chronic idiopathic pseudo-obstruction (CIP) have been identified and reported. Methods We compared two families by clinical, laboratory, histopathologic, and genealogical investigations. Ten patients (pts) (five women) from two families, A and B, both with a family history suggesting autosomal dominant CIP, were investigated. Key Results All

Cytoskeleton components of inside-out and right-side-out plasma membrane vesicles from plants

Isolated plasma membrane vesicles purified by aqueous polymer two-phase partitioning were used as a model system for studies on the membrane-associated (cortical) cytoskeleton in plants. Actin, as identified by immunoblotting, was found to be specifically attached to plasma membrane vesicles from cauliflower (Brassica oleracea L.). The actin was not washed off as the vesicles were turned inside-ou

Comparison of central and peripheral airway involvement before and during methacholine, mannitol and eucapnic hyperventilation challenges in mild asthmatics.

Introduction: Testing for airway hyperresponsiveness with indirect stimuli as exercise or mannitol has been proposed to better reflect underlying airway inflammation, as compared with methacholine (MCh), believed to act directly on airway smooth muscle cells. Objective: To investigate whether different direct and indirect stimuli induces different patterns of obstruction, recorded as central and p

Autocrine epidermal growth factor receptor ligand production and cetuximab response in head and neck squamous cell carcinoma cell lines.

PURPOSE: Predictive strategies for the treatment efficacy of cetuximab are currently not available for head and neck cancer. We investigated the correlation between the expression of epidermal growth factor receptor (EGFR) ligands and EGFR expression, and the growth inhibitory activity of cetuximab in a panel of head and neck squamous cell carcinoma (HNSCC) cell lines. METHODS: The growth inhibiti

Role of extracellular membrane vesicles in intercellular communication of the tumour microenvironment.

Over the last few decades, extensive studies by several groups have introduced the concept of cell-derived secreted extracellular membrane vesicles as carriers of complex molecular information. Owing to their pleiotropic biological effects and involvement in a wide variety of biological processes, extracellular membrane vesicles have been implicated in physiological as well as pathological events,

Role of T2 inflammation biomarkers in severe asthma.

Severe asthma is a heterogeneous syndrome. Classification of asthma into phenotypes and endotypes can improve understanding and treatment of the disease. Identification and utilization of biomarkers, particularly those linked to T2 inflammation, can help group patients into phenotypes, predict those who will respond to a specific therapy, and assess the response to treatment.

The Vascular Endothelial Growth Factor Receptor Inhibitor Sunitinib Causes a Preeclampsia-Like Syndrome With Activation of the Endothelin System.

Angiogenesis inhibition is an established treatment for several tumor types. Unfortunately, this therapy is associated with adverse effects, including hypertension and renal toxicity, referred to as "preeclampsia." Recently, we demonstrated in patients and in rats that the multitarget tyrosine kinase inhibitor sunitinib induces a rise in blood pressure (BP), renal dysfunction, and proteinuria asso

Paediatric B-cell precursor acute lymphoblastic leukaemia with t(1;19)(q23;p13): clinical and cytogenetic characteristics of 47 cases from the Nordic countries treated according to NOPHO protocols.

The translocation t(1;19)(q23;p13)/der(19)t(1;19) is a risk stratifying aberration in childhood B-cell precursor acute lymphoblastic leukaemia (BCP ALL) in the Nordic countries. We have identified 47 children/adolescents with t(1;19)/der(19)t(1;19)-positive BCP ALL treated on two successive Nordic Society of Paediatric Haematology and Oncology (NOPHO) protocols between 1992 and 2007 and have revie

Estimation of PAR over northern China from daily NOAA AVHRR cloud cover classifications

Incoming Photosynthetic Active Radiation (PAR) is an essential variable for modelling aboveground primary production of ecosystems through the light-use efficiency approach. A method is presented where daily classifications of cloud cover (CLAVR) from the NOAA AVHRR satellite sensor is used to estimate surface incident short wave (SW) flux from which PAR can be assessed. The study area is the Inne

Frequency-modulation spectroscopy with blue diode lasers

Frequency-modulation spectroscopy provides ultrasensitive absorption measurements. The technique is especially adaptable to diode lasers, which can be modulated easily, and has been used extensively in the near-infrared and infrared spectral regions. The availability of blue diode lasers now means that the accessible wavelength region can be increased. We successfully demonstrate wavelength-modula

Plasma homocysteine-a marker of vascular disease in elderly patients with mental illness.

BACKGROUND: Total plasma homocysteine (tHcy) concentration is elevated in elderly patients with mental illness, and patients with vascular disease have higher plasma tHcy concentration than patients without vascular disease. METHOD: We investigated the influence of cobalamin/folate status and renal function on the association between plasma tHcy levels and vascular disease. RESULTS: There was a si

Effects of sucrose, glucose and fructose on peripheral and central appetite signals.

In the Western world, consumption of soft drinks has increased the last three decades and is partly responsible for the epidemic-like increase in obesity. Soft drinks, originally sweetened by sucrose, are now sweetened by other caloric sweeteners, such as fructose. In this study, we investigated the short-term effect of sucrose, glucose or fructose solutions on food intake and body weight in rats,

Compulsory higher education teacher training in Sweden: development of a national standards framework based in the scholarship of teaching and learning

Today visible proofs of excellence in teaching and learning are increasingly important aspects of institutional branding in higher education (HE). Teaching competence is brought forward as a central aspect of the quality of programmes. Still, the induction of new university teachers is managed in many different ways. Approaches may vary according to how teaching competence is perceived; as growing

"It's Like Piecing Together Small Pieces of a Puzzle". Difficulties in Reporting Abuse and Neglect of Disabled Children to the Social Services

According to Swedish law, the Child and Youth Habilitation Services are obliged to report abuse and neglect of disabled children to the Social Services. Only a small proportion of all children who are suspected of being victims of abuse or neglect are however reported to the Social Services. The aim of this study is to discuss why some cases of abuse and neglect of disabled children are considered

Acute plateletpheresis and aprotinin reduces the need for blood transfusion following Ross operation.

The effect of acute intraoperative plateletpheresis (25% platelet yield) in combination with intraoperative low-dose aprotinin (2 million units) on blood conservation was investigated in 18 young adult patients undergoing elective Ross operation. The results were compared with a group of 19 similar patients without plateletpheresis (control group). The hematological and coagulation parameters at a

Enhanced expression of contractile endothelin ET(B) receptors in rat coronary artery after organ culture.

Endothelin-1 is a potent vasoconstrictor mediating its effects via two receptor subtypes, the endothelin type A (ET(A)) preferentially situated on smooth muscle cells, mediating vasoconstriction and endothelin type B (ET(B)) mainly located on endothelial cells, mediating vasodilatation. In cardiovascular disease and in organ culture in vitro, endothelin ET(B) receptors are up-regulated on smooth m