• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Synaptic Neurotransmission and the Anatomically Addressed
Synaptic Neurotransmission and the Anatomically Addressed

... related to nerve growth factor (NGF), others to glial cell line - derived neurotrophic factor (GDNF), and still others to various other neurotrophic factors (Table 2-1). A more comprehensive list of neurotrophins and growth factors is also given in Table 5-11. Some neurotrophic factors can trigger n ...
MicroRNA Regulation of CNS Myelination
MicroRNA Regulation of CNS Myelination

... expression of miR-219 is lost when Dicer1 function is specifically ablated in mature OLs in mice containing a tamoxifen-inducible PLP-CreERT gene (Shin et al., 2009; Dugas et al., 2010). Interestingly, disruption of OL-expressed Dicer1 at P14-18 leads to a strong reduction in miR-219 levels in matur ...
Hoopfer et al., Supplemental Data Supplemental Figure S1
Hoopfer et al., Supplemental Data Supplemental Figure S1

... (C) Effect of UBP2 expression of ORN degeneration at 5 and 10 days after antennae removal. Compared to wt ORNs, UBP2 expression significantly delays ORN degeneration at both 5 days (p=0.016) and 10 days (p<1x10-4) after cutting. However, it is notable that at these later time points the protective e ...
REVIEW Reticular formation and spinal cord injury
REVIEW Reticular formation and spinal cord injury

... Materials and methods: The anatomical findings were collected from very recently published and well-edited books on neuroscience instead of hundreds of articles that contain materials still requiring test of time and difficult for busy clinicians to digest. Other individual references on specific is ...
Tenascin-C Contains Distinct Adhesive, Anti
Tenascin-C Contains Distinct Adhesive, Anti

... The constructs encoding the eDNA of mouse TN-C have been described (Weller et al., 1991). cDNA inserts corresponding to TNfnl-3, TNfn4,5, TNfn6, TNfnD,6, TNfn7,8, and TNfbg were generated by polymerase chain reaction (PCR) using up- and downstream primers as documented in Table I. The primers were d ...
Neuronsderivedfromradialglialcells establish radial units in neocortex
Neuronsderivedfromradialglialcells establish radial units in neocortex

... are generated by precursor cells of the embryonic ventricular zone. In general, glia are generated after neurons during development1, but radial glia are an exception to this rule. Radial glia are generated before neurogenesis and guide neuronal migration2. Radial glia are mitotically active through ...
increase in osmiophilia of axonal membranes of crayfish as a result
increase in osmiophilia of axonal membranes of crayfish as a result

... Small portions of "fenestrated septa" (26) were seen in all different-sized axons, although their preservation was found to be very poor unless the specimens were fixed by means of H202-treated glutaraldehyde as previously reported (26, 27) . ...
************G*** #********** #**************b
************G*** #********** #**************b

... proximal tubules, two NH4+ ions are secreted into the urine and two HCO3- ions are reabsorbed into the blood. The HCO3- generated by this process constitutes new bicarbonate. ...
Block That Pain- Oral Regional Nerve Blocks Kelly Vearil, RVT,VTS
Block That Pain- Oral Regional Nerve Blocks Kelly Vearil, RVT,VTS

... Modeling clay pressed below and molded around the sensor helps keep it in place. Tubehead positioning The tubehead moves on a vertical axis (up and down, dorso-ventral to the patient) and horizontal axis (side to side, lateral to the patient). In general, the horizontal angle should be pointing dire ...
ABSTRACT  Title of dissertation: MOLECULAR MECHANISMS OF NEURONAL
ABSTRACT Title of dissertation: MOLECULAR MECHANISMS OF NEURONAL

... CAMs, regulate changes in neurite outgrowth with distinct morphological characteristics. Through transfections of primary hippocampal neurons, I investigated the roles of each SALM in neurite outgrowth. In addition to neurite outgrowth, SALMs are involved in synapse formation. In a parallel study, I ...
Safety Alert: Diathermy (Therapeutic Ultrasound)
Safety Alert: Diathermy (Therapeutic Ultrasound)

... with any type of Medtronic neurostimulation system. Diathermy treatments are used by a variety of health care professionals, including physical therapists, nurses, chiropractors, dentists, sports therapists, and others. Health care professionals may refer to diathermy using the term "deep heat" or s ...
408 3 Physiology and Anatomy for the Speed and Power
408 3 Physiology and Anatomy for the Speed and Power

... knees, ankles, shoulders, elbows, and wrists all have a lot of ligaments holding them together. Ligaments take longer to heal than muscles or tendons because they have less blood supply. When ligaments are damaged proper rehabilitation is needed to make sure the joint is stable and the athlete’s pro ...
Cochlea and Auditory Pathways
Cochlea and Auditory Pathways

... Hearing begins with pressure waves impacting the tympanic membrane, causing it to vibrate. The vibration is transmitted from malleus to incus to stapes. The stapes rocks in & out, causing the membrane of the oval window to produce pressure waves within perilymph of the scala vestibuli. Pressure is t ...
Nervous System - Warren County Schools
Nervous System - Warren County Schools

... next neuron by a gap  Synaptic cleft – gap between adjacent neurons  Synapse – junction between nerves Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings ...
Organization of Cytoskeletal Elements and Organelles Preceding
Organization of Cytoskeletal Elements and Organelles Preceding

... tubulin, actin filaments, and Golgi apparatus is localized at the proximal pole of the proximal pioneer neuron. The growth cone of the proximal cell stereotypically arises from this site. Although the distal cell's axon generally grows proximally, occasionally it arises from its distal pole; in such ...
Regulation of thalamocortical axon branching by BDNF and synaptic vesicle cycling
Regulation of thalamocortical axon branching by BDNF and synaptic vesicle cycling

... During development, axons form elaborate arbors to make synaptic contacts with their target cells. Neurotrophins, such as brainderived neurotrophic factor (BDNF), have been shown to regulate axon branching in the developing brain (Cohen et al., 1954; Vicario-Abejón et al., 1998; Cohen-Cory, 1999; Ma ...
Vagal Ischemia Induced Lung Immune Component Infarct Following
Vagal Ischemia Induced Lung Immune Component Infarct Following

... of efferent and afferent vagal reflex pathways that regulate respiration. The GPN, other lower cranial nerves and upper cervical spinal nerves are injured as well. Disruption extends into the cervical spinal canal, aggravating the mortal effects of SAH. These result in alteration in breathing patter ...
Control and Coordination
Control and Coordination

... skin respond to the cold temperature. As the muscle cells contract, or shorten, bumps form, and the hairs on your arms rise up. The hairs trap air, which helps to insulate the skin. This helps you feel warmer. How did the muscle cells know to contract? When you first felt the cold, a message was sen ...
Amelioration of Delayed Neuronal Death in the Hippocampus by
Amelioration of Delayed Neuronal Death in the Hippocampus by

... unilateral occlusion of the carotid artery, seizuresoccur occasionally. However, when the occlusion is bilateral and .the duration of ischemia is limited to 5 min under halothane anesthesia, seizureshave not beenobserved;and the mortality ratio is negligible(Tomida et al., 1987). Therefore, the expe ...
The Spinal Cord, Spinal Nerves, and Somatic Reflexes
The Spinal Cord, Spinal Nerves, and Somatic Reflexes

... itself in more detail. The spinal cord, like the brain, consists of two kinds of nervous tissue called gray and white matter. Gray matter has a relatively dull color because it contains little myelin. It contains the somas, dendrites, and proximal parts of the axons of neurons. It is the site of syn ...
Nerve activates contraction
Nerve activates contraction

... 4 Propagation of the action potential. Depolarization of the first membrane patch causes permeability changes in the adjacent membrane, and the events described in step 2 are repeated. Thus, the action potential propagates rapidly along the entire length of the membrane. ...
Physiol. Res. 49: 000
Physiol. Res. 49: 000

... to conserve interspike intervals during propagation. The influence of noise on the PP was studied experimentally on frog sciatic nerve fibers (Lass and Abeles 1975) and also by means of computer modeling on thin nonmyelinated nerve fibers (Horikawa 1991). The results from these experiments showed th ...
Facial Injuries
Facial Injuries

... Facial Fractures in Children Facial fractures in children account for about 5% of all facial injuries Most of these fractures occur in children > 5 years of age Subcondylar fracture is seen most often Children’s bones are soft, and frequently displace without fracture In children, bone healing prog ...
Neuroembryology of Neural Tube Defects
Neuroembryology of Neural Tube Defects

... Neural tube defects arise from failure of closure of the cranial or caudal neuropore. NTDs are caused by environmental and genetic factors. Inadequate fetal folate acquisition by rapidly proliferating neural tube or neural crest cells during critical periods may explain many cases of folate-responsi ...
Way SW, McKenna J 3rd, Mietzsch U, Reith RM, Wu HC, Gambello MJ. Loss of Tsc2 in radial glia models the brain pathology of tuberous sclerosis complex in the mouse. Human Molecular Genetics. 2009 Apr 1; 18(7):1252-65.
Way SW, McKenna J 3rd, Mietzsch U, Reith RM, Wu HC, Gambello MJ. Loss of Tsc2 in radial glia models the brain pathology of tuberous sclerosis complex in the mouse. Human Molecular Genetics. 2009 Apr 1; 18(7):1252-65.

... enlarged neurons in the stratum oriens (SO) (Fig. 3F and G). These defects were in stark contrast to the tight, ordered pyramidal layer of the control animals, with a relatively cell sparse SO (Fig. 3A and E). The dentate gyrus (DG) retained its overall structure and contained approximately equal nu ...
< 1 ... 28 29 30 31 32 33 34 35 36 ... 260 >

Neuroregeneration

Neuroregeneration refers to the regrowth or repair of nervous tissues, cells or cell products. Such mechanisms may include generation of new neurons, glia, axons, myelin, or synapses. Neuroregeneration differs between the peripheral nervous system (PNS) and the central nervous system (CNS) by the functional mechanisms and especially the extent and speed. When an axon is damaged, the distal segment undergoes Wallerian degeneration, losing its myelin sheath. The proximal segment can either die by apoptosis or undergo the chromatolytic reaction, which is an attempt at repair. In the CNS, synaptic stripping occurs as glial foot processes invade the dead synapse.Nervous system injuries affect over 90,000 people every year. It is estimated that spinal cord injuries alone affect 10,000 each year. As a result of this high incidence of neurological injuries, nerve regeneration and repair, a subfield of neural tissue engineering, is becoming a rapidly growing field dedicated to the discovery of new ways to recover nerve functionality after injury. The nervous system is divided into two parts: the central nervous system, which consists of the brain and spinal cord, and the peripheral nervous system, which consists of cranial and spinal nerves along with their associated ganglia. While the peripheral nervous system has an intrinsic ability for repair and regeneration, the central nervous system is, for the most part, incapable of self-repair and regeneration. There is currently no treatment for recovering human nerve function after injury to the central nervous system. In addition, multiple attempts at nerve re-growth across the PNS-CNS transition have not been successful. There is simply not enough knowledge about regeneration in the central nervous system. In addition, although the peripheral nervous system has the capability for regeneration, much research still needs to be done to optimize the environment for maximum regrowth potential. Neuroregeneration is important clinically, as it is part of the pathogenesis of many diseases, including multiple sclerosis.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report