Sökresultat

Filtyp

Din sökning på "*" gav 534129 sökträffar

Biological and small molecule strategies in migraine therapy with relation to the CGRP family of peptides

Migraine is one of the most common of neurological disorders with a global prevalence of up to 15%. One in five migraineurs have frequent episodic or chronic migraine requiring prophylactic treatment. In recent years, specific pharmaceutical treatments targeting calcitonin gene-related peptide (CGRP) signalling molecules have provided safe and effective treatments; monoclonal antibodies for prophy

Brain alpha-amylase : a novel energy regulator important in Alzheimer disease?

Reduced glucose metabolism and formation of polyglucosan bodies (PGB) are, beside amyloid beta plaques and neurofibrillary tangles, well-known pathological findings associated with Alzheimer's disease (AD). Since both glucose availability and PGB are regulated by enzymatic degradation of glycogen, we hypothesize that dysfunctional glycogen degradation is a critical event in AD progression. We ther

Frataxin deficiency in pancreatic islets causes diabetes due to loss of β cell mass

Diabetes is caused by an absolute (type 1) or relative (type 2) deficiency of insulin-producing β cells. We have disrupted expression of the mitochondrial protein frataxin selectively in pancreatic β cells. Mice were born healthy but subsequently developed impaired glucose tolerance progressing to overt diabetes mellitus. These observations were explained by impairment of insulin secretion due to

Screening of small molecules using the inhibition of oligomer formation in α-synuclein aggregation as a selection parameter

The aggregation of α-synuclein is a central event in Parkinsons’s disease and related synucleinopathies. Since pharmacologically targeting this process, however, has not yet resulted in approved disease-modifying treatments, there is an unmet need of developing novel methods of drug discovery. In this context, the use of chemical kinetics has recently enabled accurate quantifications of the micros

Luminescence dating of holocene siliciclastic sediments in eastern Dahomey Basin, southwestern Nigeria

Several attempts at reconstructing geological settings and palaeoclimatic changes of the siliciclastic deposits of the Dahomey Basin, SW Nigeria, using relative age dating and correlation methods, have resulted in serious discrepancies on the ages. Therefore, a chronology framework established by an absolute age dating method is requisite to constrain the geological interpretation. This research f

Elevated temperatures increase growth and enhance foraging performances of a marine gastropod

The oceans continue to warm due to rising atmospheric greenhouse gas concentrations. Most climate-change studies of aquaculture species use temperature changes based on coarse-resolution climate models and without considering thermal ranges of an animal. Coarse-resolution climate models are generated by global-scale data, which is insufficient to capture the conditions of coastal areas where most

Thermal performance in a pin fin-dimple/protrusion duct with different optimal objectives

In the present study, the optimal objective effect on the thermal performance of a rectangular duct with pin fins and dimples/protrusions is introduced. Four different optimal objectives are selected (entropy generation, entransy dissipation, enerty, and volume goodness factor). The baseline k-ù turbulence model is applied to solve the governing equations. The multi-island genetic algorithm (MIGA)

The organizational architecture of entrepreneurial universities across the stages of entrepreneurship : a conceptual framework

Entrepreneurial universities contribute directly and indirectly to supporting all stages of entrepreneurship. The challenge for entrepreneurial universities is how they can best support academic entrepreneurs through these stages of entrepreneurship. This has led to the creation of different and often ad hoc organizational units within an entrepreneurial university. The organizational challenge fo

Factors associated with serum ferritin levels and iron excess : results from the EPIC-EurGast study

Purpose: Excess iron is involved in the development of non-communicable diseases such as cancer, type 2 diabetes and cardiovascular conditions. We aimed to describe the prevalence of excess iron and its determinants in healthy European adults. Methods: Sociodemographic, lifestyle, iron status, dietary information, and HFE genotyping were obtained from controls from the nested case–control study EP

Maternal health status and household food security on determining childhood anemia in Bangladesh -a nationwide cross-sectional study

Background: The aim of this study was to examine the effect of household food security on childhood anemia inBangladesh while controlling for socioeconomic and demographic factors.Methods: We used nationally representative Bangladesh Demographic Health Survey (BDHS) 2011 data for thisstudy, the only existing survey including anemia information and household food security. The sample included2171 c

Good People Doing Bad Things: Compliance Regimes in Organizations

Nearly all major corporations and many public agencies have established ethics and compliance departments, some of them as the result of penalties imposed by the US Dept. of Justice, others due to embarrassing scandals. The responsibilities of these ethics and compliance departments range from inculcating internal codes of conduct within the organization, preventing bribery in contracts, impeding

Prisoners in Freedom City (EN & CN)

Civil rights activist Hu Jia was held under house arrest from 2004 to 2008 in the upscale eastern suburbs of Beijing. One day Hu picked up a video camera and began to document things outside the window: his watchers, shepherds tending their flocks, spiders in the rain, and his fellow activist and wife, Zeng Jinyan, going to and from work under the unnervingly close watch of plainclothes police.

Fighting Insurgency, Ruining the Environment : the Case of Forest Fires in the Dersim Province of Turkey

Environmental destruction has long been used as a military strategy in times of conflict. A long-term example of environmental destruction in a conflict zone can be found in Dersim/Tunceli province, located in Eastern Turkey. In the last century, at least two military operations negatively impacted Dersim’s population and environment: 1937–38 and 1993–94. Both conflict and environmental destructio

Vaccines and allergic reactions : The past, the current COVID-19 pandemic, and future perspectives

Vaccines are essential public health tools with a favorable safety profile and prophylactic effectiveness that have historically played significant roles in reducing infectious disease burden in populations, when the majority of individuals are vaccinated. The COVID-19 vaccines are expected to have similar positive impacts on health across the globe. While serious allergic reactions to vaccines ar

Optical investigations and characterization of soot of different morphology and maturity

The formation path from small poorly absorbing incipient soot to larger fractal-like strongly absorbing black soot is extensive, and along this path the optical and physicochemical properties of the soot evolve. Soot emitted into the atmosphere may originate from some stage of this process, which will result in a wide spectrum of carbonaceous aerosols in the atmosphere which may interact with the

A cross-sectional study addressing the importance of work and other everyday activities for well-being among people with mental illness : does additional vulnerability matter?

Background: Work and other everyday activities are beneficial for well-being among people with mental illness, but poor circumstances can create detrimental effects, possibly aggravated by additional vulnerabilities linked with their mental illness. This study aimed to investigate how activity factors were related to well-being and functioning among three vulnerable groups using outpatient mental