نتایج جستجو برای: thracolumbar spine
تعداد نتایج: 52522 فیلتر نتایج به سال:
Introduction: Osteoporosis is one of the most common aging disorders. Its prevalence varies according to lifestyle and dietary habits in various countries. This study was undertaken to determine the prevalence of osteoporosis in Tehranian women aged 40-60 years in 2000. Materials and Methods: In this study, 754 non-pregnant women were selected by cluster random sampling. Sociodemographic charac...
Abstract Aims: Scoliosis is one of the secondary complications in amputation veterans, which requires periodic evaluations. The gold standard for evaluating the spine is radiography, which has caused many concerns due to the very high doses of X-ray radiation. For this reason, therapists are finding for an alternative method for this tool, so ultrasound is a non-invasive tool with different me...
Background The diagnosis of tuberculous spine disease is quite difficult to be established based on clinical data only, moreover if there is no clinical sign of pulmonary TB or gibbus on the spine. Patients with this disease often show skinny appearance and complaining of cold sweat and chronic cough. Therefore, patients with tuberculous spine disease usually come with radiculopathy and/or myel...
Developmental alterations of excitatory synapses are implicated in autism spectrum disorders (ASDs). Here, we report increased dendritic spine density with reduced developmental spine pruning in layer V pyramidal neurons in postmortem ASD temporal lobe. These spine deficits correlate with hyperactivated mTOR and impaired autophagy. In Tsc2 ± ASD mice where mTOR is constitutively overactive, we ...
minimally invasive spinal deformity surgery an evolution minimally invasive spinal deformity surgery an evolution minimally invasive spinal deformity surgery an evolution minimally invasive spinal deformity surgery springer paradigm changes in spine surgery—evolution of minimally minimally invasive spinal deformity surgery an evolution modern techniques in spine surgery mvsz minimally invasive ...
A current model posits that cofilin-dependent actin severing negatively impacts dendritic spine volume. Studies suggested that increased cofilin activity underlies activity-dependent spine shrinkage, and that reduced cofilin activity induces activity-dependent spine growth. We suggest instead that both types of structural plasticity correlate with decreased cofilin activity. However, the mechan...
Dendritic spines undergo the processes of formation, maturation, and pruning during development. Molecular mechanisms controlling spine maturation and pruning remain largely unknown. The gene for brain-derived neurotrophic factor (BDNF) produces two pools of mRNA, with either a short or long 3' untranslated region (3' UTR). Our previous results show that short 3' UTR Bdnf mRNA is restricted to ...
We investigated the role of dendritic spine morphology in spine-dendrite calcium communication using novel experimental and theoretical approaches. A transient rise in [Ca2+]i was produced in individual spine heads of Fluo-4-loaded cultured hippocampal neurons by flash photolysis of caged calcium. Following flash photolysis in the spine head, a delayed [Ca2+]i transient was detected in the pare...
Dendritic spines receive most excitatory inputs in the CNS and compartmentalize calcium. Although the mechanisms of calcium influx into spines have been explored, it is unknown what determines the calcium decay kinetics in spines. With two-photon microscopy we investigate action potential-induced calcium dynamics in spines from rat CA1 pyramidal neurons in slices. The [Ca(2+)](i) in most spines...
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