نتایج جستجو برای: brain development
تعداد نتایج: 1833504 فیلتر نتایج به سال:
background : studies have emphasized on the frontal eeg symmetry as a mediator of emotional states. this research was aimed to examine the overall and asymmetric activities of the brain lobes under the affective states. methods : a coupling eeg was recorded in an eye closed awakened condition from 40 right handed female students under the baseline and affective states. results : bilaterally de...
Inflammation is a pathologic condition that includes a wide range of diseases namely neurodegenerative diseases. Several natural anti-inflammatory components have been identified in plant extracts used in traditional medicine for the relief of inflammation. Herbal medicine is showing difficulty in crossing the blood-brain barrier (BBB). So that the ability to pass the BBB is the main concern fo...
Background: Premature birth is a major cause of infant mortality in developed countries. Newborns confined to neonatal intensive care units (NICUs) are in a rapid stage of brain development. As such, sleep plays a pivotal role in the proper brain development of newborns. However, this developmental aspect is often disregarded due to the lack of information. Aim: This study aimed to evaluate the...
Neuroinflammation as a protective mechanism for repairing tissue damage in the central nervous system (CNS), has been classified into two types: acute and chronic. It is characterized by the activation of microglia and astrocytes and the increase levels of different chemokines and cytokines. Neuroinflammation can be harmful, and it is a common pathological feature in neurodegenerative and psych...
objective(s) in this study we investigated the expression of gabaa receptor subunits during brain development. these receptors may change in the embryonic chick forebrain. materials and methodes the expression levels of four types of gabaa receptor gamma subunits (γ1, γ2, γ3 and γ4) were quantified in the embryonic chick forebrain at 32 hr, 3, 7, 14, and 20 days of incubation and day one after ...
Objective(s): Erythropoietin (EPO), is a 34KDa glycoprotein hormone, which belongs to type 1 cytokine superfamily. EPO involves in erythrocyte maturation through inhibition of apoptosis in erythroid cells. Besides its main function, protective effects of EPO in heart and brain tissues have been reported. EPO has a critical role in development, growth, and homeostasis of brain. Furthermore EPO h...
This is a report of developmental trajectories of cortical surface area and cortical volume in the NIH MRI Study of Normal Brain Development. The quality-controlled sample included 384 individual typically-developing subjects with repeated scanning (1-3 per subject, total scans n=753) from 4.9 to 22.3 years of age. The best-fit model (cubic, quadratic, or first-order linear) was identified at e...
Future Neurol. (2011) 6(6), 783–808 10.2217/FNL.11.51 © 2011 Future Medicine Ltd The idea that the developing brain is a highly malleable structure that is particularly vulnerable to environmental toxins has long been recognized. Both the preclinical and human literature has repeatedly demonstrated that prenatal and early life exposure to a variety of drugs can have untoward and lasting consequ...
Microglia are the resident immune cells of the central nervous system (CNS). In the normal state, microglia have a ramified shape and continuously survey the conditions of the brain. In response to various stimuli, some microglia change to an amoeboid shape. This type of microglia is motile and produces several secretory proteins, including inflammatory cytokines and neurotrophic factors, which...
Prenatal stress (PS) has been linked to abnormal cognitive, behavioral and psychosocial outcomes in both animals and humans. Animal studies have clearly demonstrated PS effects on the offspring's brain, however, while it has been speculated that PS most likely affects the brains of exposed human fetuses as well, no study has to date examined this possibility prospectively using an independent s...
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