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Institution

University of Basel

EducationBasel, Basel-Stadt, Switzerland
About: University of Basel is a education organization based out in Basel, Basel-Stadt, Switzerland. It is known for research contribution in the topics: Population & Transplantation. The organization has 25084 authors who have published 52975 publications receiving 2388002 citations. The organization is also known as: Universität Basel & Basel University.


Papers
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Journal ArticleDOI
TL;DR: Interactions of leptin with brain mechanisms and immunohistochemical results show extensive distribution of LR-like immunoreactivity (LR-LI) in the brain with positively stained cells present, e.g., in the choroid plexus, cerebral cortex, hippocampus, thalamus, and hypothalamus.
Abstract: The adipose tissue-derived hormone leptin regulates body weight homeostasis by decreasing food intake and increasing energy expenditure. The weight-reducing action of leptin is thought to be mediated primarily by signal transduction through the leptin receptor (LR) in the hypothalamus. We have used immunohistochemistry to localize LR-immunoreactive (LR-IR) cells in the rat brain using an antiserum against a portion of the intracellular domain of LR that is common to all LR isoforms. The antiserum recognized the short and long isoforms of LR in transfected hematopoietic BaF3 cells. To examine the chemical nature of target cells for leptin, direct double-labeling immunofluorescence histochemistry was applied. The results show extensive distribution of LR-like immunoreactivity (LR-LI) in the brain with positively stained cells present, e.g., in the choroid plexus, cerebral cortex, hippocampus, thalamus, and hypothalamus. In the hypothalamus, strongly LR-IR neurons were present in the supraoptic nucleus (SON) and paraventricular nucleus (PVN), periventricular nucleus, arcuate nucleus, and lateral hypothalamus. Weaker LR-IR neurons were also demonstrated in the lateral and medial preoptic nuclei, suprachiasmatic nucleus, ventromedial and dorsomedial nuclei, and tuberomammillary nucleus. Confocal laser scanning microscopy showed LR-LI in the periphery of individual cells. In magnocellular neurons of the SON and PVN, LR-LI was demonstrated in vasopressin- and oxytocin-containing neurons. In parvocellular neurons of the PVN, LR-LI was demonstrated in many corticotropin-releasing hormone-containing neurons. LR-IR neurons were mainly seen in the ventromedial aspect of the arcuate nucleus, where LR-LI co-localized with neuropeptide Y. In the ventrolateral part of the arcuate nucleus, LR-LI was present in many large adrenocorticotropic hormone-IR proopiomelanocortin-containing neurons and in a few galanin-, neurotensin-, and growth hormone-releasing hormone-containing neurons. In the dorsomedial arcuate nucleus, few tyrosine hydroxylase (dopamine)-containing neurons were seen to have LR-LI. Melanin-concentrating hormone-containing neurons in the lateral hypothalamus had LR-LI. Based on the immunohistochemical results, possible interactions of leptin with brain mechanisms are discussed.

746 citations

Journal ArticleDOI
TL;DR: The QMEAN server provides access to two scoring functions successfully tested at the eighth round of the community-wide blind test experiment CASP, which derives a quality estimate on the basis of the geometrical analysis of single models and a weighted all-against-all comparison of the models from the ensemble provided by the user.
Abstract: Model quality estimation is an essential component of protein structure prediction, since ultimately the accuracy of a model determines its usefulness for specific applications. Usually, in the course of protein structure prediction a set of alternative models is produced, from which subsequently the most accurate model has to be selected. The QMEAN server provides access to two scoring functions successfully tested at the eighth round of the community-wide blind test experiment CASP. The user can choose between the composite scoring function QMEAN, which derives a quality estimate on the basis of the geometrical analysis of single models, and the clustering-based scoring function QMEANclust which calculates a global and local quality estimate based on a weighted all-against-all comparison of the models from the ensemble provided by the user. The web server performs a ranking of the input models and highlights potentially problematic regions for each model. The QMEAN server is available at http://swissmodel.expasy.org/qmean.

743 citations

Journal ArticleDOI
TL;DR: The authors have adopted a new nomenclature for the laminins, in which the previous A, B1 and B2 chains, and their isoforms, are alpha, beta and gamma, followed by an arabic numeral to identify the isoform.

743 citations

Journal ArticleDOI
TL;DR: In this article, a wide range of acrylate and methacrylate resins formulations are tested and two highly cross-linked resins, one polar and the other nonpolar, that are usable to temperatures from 243 to 223 K are presented.
Abstract: SUMMARY We have tested a wide range of acrylate and methacrylate resin formulations and have concluded that embedding resins can be developed which are usable within a broad range of environmental conditions. To demonstrate this versatility, we have designed two highly-cross-linked resins, one polar and the other nonpolar, that are usable to temperatures from 243 to 223 K. Both of these resins formulations, which are now commercially available, show that systematic experiments can be easily done to study the effects of environmental parameters, such as water content, temperature, or resin polarity, on biological material during embedding. Using these resins and aldehyde-fixed protein crystals, it can be shown that low temperature minimizes the loss of molecular structure to an extent that is not often obtainable with conventional methods of dehydration and embedding. Embedded crystals of aspartate aminotransferase still retained molecular order to 0·6 nm. Embedded crystals of catalase show X-ray diffraction maxima out to 0·8 nm. When sectioned, catalase revealed stain-limited electron and optical diffraction patterns to 2·5 nm. Nevertheless, our work clearly demonstrates that low temperature embedding procedures are superior and that versatile, general purpose resins can be designed to take advantage of this fact.

740 citations

Journal ArticleDOI
TL;DR: This paper will provide a concise overview of the mechanisms causing endothelial dysfunction in the different cardiovascular risk factors and disease conditions, and of the impact of the intervention measures and treatments.
Abstract: Dysfunction of the vascular endothelium is a hallmark of most conditions that are associated with atherosclerosis and is therefore held to be an early feature in atherogenesis. However, the mechanisms by which endothelial dysfunction occurs in smoking, dyslipidaemia, hyperhomocysteinaemia, diabetes mellitus, arterial hypertension, cerebrovascular diseases, coronary artery disease and heart failure are complex and heterogeneous. Recent data indicate that endothelial dysfunction is often associated with erectile dysfunction, which can precede and predict cardiovascular disease in men. This paper will provide a concise overview of the mechanisms causing endothelial dysfunction in the different cardiovascular risk factors and disease conditions, and of the impact of the intervention measures and treatments.

735 citations


Authors

Showing all 25374 results

NameH-indexPapersCitations
Yang Yang1712644153049
Martin Karplus163831138492
Frank J. Gonzalez160114496971
Paul Emery1581314121293
Matthias Egger152901184176
Don W. Cleveland15244484737
Ashok Kumar1515654164086
Kurt Wüthrich143739103253
Thomas J. Smith1401775113919
Robert Huber13967173557
Peter Robmann135143897569
Ernst Detlef Schulze13367069504
Michael Levine12958655963
Claudio Santoni129102780598
Pablo Garcia-Abia12698978690
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
2023146
2022552
20213,395
20203,227
20192,984
20182,775