Evaluation of antiseizure medication concentration ranges in blood samples using an automated big data approach.

Objective: The aim of the study is to provide insight into the real-world use of therapeutic drug monitoring (TDM) for the most common antiseizure medications (ASMs).

Methods: In total, 137 586 samples from the period 2019-2023 were collected from the five main Danish laboratories performing TDM. A previously described algorithm developed to exclude abnormal TDM results from patient data was applied.

Age and Parkinson's disease-related neuronal death in the substantia nigra pars compacta.

During aging, decline in memory and cognitive abilities as well as motor weakening is of great concern. The dopaminergic system mediates some aspects of manual dexterity, in addition to cognition and emotion, and may be especially vulnerable to aging. A common neurodegenerative disorder of this system, Parkinson's disease, is characterized by a selective, progressive loss of dopaminergic neurons in the substantia nigra pars compacta.

A PET study of effects of chronic 3,4-methylenedioxymethamphetamine (MDMA, "ecstasy") on serotonin markers in Göttingen minipig brain.

The psychostimulant 3,4-methylendioxymethamphetamine (MDMA, "ecstasy") evokes degeneration of telencephalic serotonin innervations in rodents, nonhuman primates, and human recreational drug users. However, there has been no alternative to nonhuman primates for studies of the cognitive and neurochemical consequences of serotonin depletion in a large-bodied animal. Therefore, we used positron emission tomography (PET) with [(11)C]DASB to map the distribution of plasma membrane serotonin transporters in brain of Göttingen minipigs, first in a baseline condition, and again at 2 weeks after treatment with MDMA (i.

Measuring morphological and cellular changes in Alzheimer's dementia: a review emphasizing stereology.

From a clinical as well as a neuropathological point of view Alzheimer's disease (AD) has been the focus of intense research for more than three decades. Most studies to identify morphometric correlates with the declining cognitive function in normal aging and AD have employed semi-quantitative methods to assess neuropathological markers such as neurofibrillary tangles, senile plaques, neuronal, or glial cell densities, and neuron sizes. To this end, many cell counting methods have employed two-dimensional designs in single sections, yielding estimates of cell numbers either as neuron densities (number of cell profiles per area) or estimates of the size distribution of neuron profiles in columns vertical to the cortical surface.

Glial cell loss in the anterior cingulate cortex, a subregion of the prefrontal cortex, in subjects with schizophrenia.

Objective: Structural deficits in the anterior cingulate cortex such as changes in glial cell and neuron numbers may be part of the anatomical substrate for schizophrenia and need to be investigated. The total number of neurons and glial cells in brains of 12 schizophrenia subjects and 14 comparison subjects were determined in two subdivisions of the prefrontal cortex: Brodmann's area 24, a part of the anterior cingulate cortex, and Brodmann's area 32 in the paracingulate cortex.

Method: The estimate of the total cell number was obtained by multiplying the volume of the region (estimated by using Cavalieri's point counting method) by the numerical density obtained from optical disectors in the cytoarchitectonically defined areas from the prefrontal cortex.