Object: This investigation was undertaken to study the effect of aluminum on neurobehavioral, electrophysiological, structural, and biochemical changes in rats following spinal cord injury (SCI).
Methods: Adult male Sprague-Dawley rats classified into different groups were given aluminum sulfate-dosed drinking water in the concentrations of 0%, 0.25%, 0.5% and 1%, respectively. After 30 days of aluminum treatment, the animals were subjected to spinal cord trauma. Laminectomy was performed at T7-8 in anesthetized rats, followed by placement of a compression plate (2.2 x 5 mm) loaded with a 35-g weight over the exposed spinal cord for 5 minutes. Control animals underwent the same surgical procedure, but the compression injury was not induced (sham). Postoperative neurological function was assessed using the inclined-plane test and by obtaining a modified Tarlov score and vocal/sensory score daily for 10 days. Electrophysiological changes were assessed using corticomotor evoked potentials, whereas pathological changes were assessed by light microscopy. The level of vitamin E in the spinal cord was measured as an index of antioxidant defense. The behavioral, biochemical, and histological analyses were performed in a blinded fashion.
Conclusions: Analysis of results obtained in the behavioral studies revealed that the compression of spinal cord produced transient paraparesis in which a maximum motor deficit occurred at Day 1 following SCI and resolved over a period of 10 days. Administration of aluminum significantly impaired the recovery following SCI. Analysis of the results of the biochemical, electrophysiological, and histopathological studies also confirmed the deleterious effects of aluminum on recovery from SCI in rats.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.3171/spi.2000.93.2.0276 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Therapeutic potential and mechanisms of umbilical cord mesenchymal stem cells differentiating into tendon cells and promotion of rotator cuff tendon-bone healing.
J Tissue Eng
January 2025
Department of Spinal Surgery, Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.
Rotator cuff tendon injuries often lead to shoulder pain and dysfunction. Traditional treatments such as surgery and physical therapy can provide temporary relief, but it is difficult to achieve complete healing of the tendon, mainly because of the limited repair capacity of the tendon cells. Therefore, it is particularly urgent to explore new treatment methods.
View Article and Find Full Text PDFSpinal cord injury enhances lung inflammation and exacerbates immune response following exposure to LPS.
Front Immunol
January 2025
Department of Medicine, Aab Cardiovascular Research Institute, University of Rochester School of Medicine and Dentistry, Rochester, NY, United States.
Introduction: The severity of spinal cord injury (SCI) is closely tied to pulmonary function, especially in cases of higher SCI levels. Despite this connection, the underlying pathological mechanisms in the lungs post-SCI are not well understood. Previous research has established a connection between disrupted sympathetic regulation and splenocyte apoptosis in high thoracic SCI, leading to pulmonary dysfunction.
View Article and Find Full Text PDFMicroiontophoretic Application of Dynorphin in Dental Pain: Excitatory or Inhibitory Effects.
J Pain Res
January 2025
Department of Oral Physiology, School of Dentistry, Kyungpook National University, Daegu, Korea.
Background: The tooth exhibits increased sensitivity to noxious stimuli due to the dense innervation of thin myelinated Aδ fibers and unmyelinated C fibers within the dental pulp. While prior research has identified dynorphin expression in layers I-II of the dorsal horn across the spinal cord in various pain models, its functional role in trigeminal nociception, including tooth pain, remains underexplored. This study examines the potential role of dynorphin in the nociceptive processing of dental stimuli.
View Article and Find Full Text PDFThree-Staged Surgical Hybrid Treatment for an Extended Thoracoabdominal Aneurysm in a High-Risk Patient: A Case Report.
Cureus
December 2024
Department of Cardiovascular Surgery, Shizuoka General Hospital, Shizuoka, JPN.
Thoracoabdominal aortic aneurysm (TAAA) repair remains one of the most challenging procedures and is associated with high mortality and complication rates. Careful consideration of the surgical strategy is essential, particularly in cases involving extensive replacement and high-risk patients. A 61-year-old man with a 55-mm TAAA was referred for surgical treatment.
View Article and Find Full Text PDFTrehalose enhances macrophage autophagy to promote myelin debris clearance after spinal cord injury.
Cell Biosci
January 2025
Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China.
Background: Myelin-laden foamy macrophages accumulate extensively in the lesion epicenter, exhibiting characteristics of autophagolysosomal dysfunction, which leads to prolonged inflammatory responses after spinal cord injury (SCI). Trehalose, known for its neuroprotective properties as an autophagy inducer, has yet to be fully explored for its potential to mitigate foamy macrophage formation and exert therapeutic effects in the context of SCI.
Results: We observed that trehalose significantly enhances macrophage phagocytosis and clearance of myelin in a dose-dependent manner in vitro.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!