Inflammation Clinical Trial
Official title:
Inflammation and Neurocognitive Damage Markers in Elderly People With Obstructive Sleep Apnea
The aging process tends to promote an overall increase in inflammation compromising the immunologic system regulation, sleep/wakefulness pattern, and neurocognitive performance. In elders, there is an increase in repetitive arousals during sleep, secondary to breathing interruption by pharynx collapse, generating a transient reduction in oxygen delivery to the brain known as obstructive sleep apnea. This lack in oxygen supply results in an inflammatory process producing brain damage. Some substances present in the blood seem to be associated to neurocognitive damage, like S100β protein, cortisol, interleukin 1-β,6 and TNF-α. In the other way, a substance called brain-derived neurotrophic factor (BDNF) enhances cognitive function, and memory consolidation improvement.
An intermittent hypoxia in obstructive sleep apnea induces the production of reactive oxygen species (ROS), oxidative damage and inflammation generating pro-inflammatory cytokines, reactive gliosis and neuronal damage. The increase in oxidative damage seems to be associated to age, contributing to the progress of neurodegeneration. Transient hypoxemia leads to autonomic excitation causing hyperactivity of the sympathetic nervous system (SNS), and activation of the hypothalamic-pituitary-adrenal (HPA) axis, causing immunological changes and increased risk of damage to mental functions. Night awakenings caused by OSA are associated with changes on the HPA axis, resulting in increased serum cortisol levels. The fluctuation in serum cortisol levels at night is intrinsically related to sleep, and increases with advancing age. BDNF is responsible for increasing the growth of neurites, and synaptogenesis, preventing programmed cell death in adults, and is involved in stress responses on the HPA axis. Low BDNF levels are associated to cognitive impairment, less memory consolidation, depression, and OSA. There is a positive correlation between levels of BDNF and cortisol related to physiological regulation of brain activities. The increase in oxidative damage caused by intermittent hypoxia during obstructive sleep apnea increases serum levels of the s100β protein promoting reactive gliosis or astrogliosis being associated to depression in the elderly. Obstructive sleep apnea syndrome is associated with development of cardiovascular and neurological diseases by activating pro-inflammatory pathways. However, in elderly individuals, regardless of other specific pathologies, they already have a pro-inflammatory state secondary to loss of regulation of the immune system. ;
| Status | Clinical Trial | Phase | |
|---|---|---|---|
| Completed |
NCT03995979 -
Inflammation and Protein Restriction
|
N/A | |
| Completed |
NCT03255187 -
Effect of Dietary Supplemental Fish Oil in Alleviating Health Hazards Associated With Air Pollution
|
N/A | |
| Completed |
NCT04507867 -
Effect of a NSS to Reduce Complications in Patients With Covid-19 and Comorbidities in Stage III
|
N/A | |
| Completed |
NCT03577223 -
Egg Effects on the Immunomodulatory Properties of HDL
|
N/A | |
| Completed |
NCT04383561 -
Relationship Between LRG and Periodontal Disease
|
N/A | |
| Active, not recruiting |
NCT03622632 -
Pilot Study to Measure Uric Acid in Traumatized Patients: Determinants and Prognostic Association
|
||
| Completed |
NCT06216015 -
Exercise Training and Kidney Transplantation
|
N/A | |
| Completed |
NCT04856748 -
Nomogram to Diagnose Prostatic Inflammation (PIN) in Men With Lower Urinary Tract Symptoms
|
||
| Completed |
NCT05529693 -
Efficacy of a Probiotic Strain on Level of Markers of Inflammation in an Elderly Population
|
N/A | |
| Recruiting |
NCT05670301 -
Flemish Joint Effort for Biomarker pRofiling in Inflammatory Systemic Diseases
|
N/A | |
| Recruiting |
NCT05415397 -
Treating Immuno-metabolic Depression With Anti-inflammatory Drugs
|
Phase 3 | |
| Recruiting |
NCT05775731 -
Markers of Inflammation and of the Pro-thrombotic State in Hospital Shift and Day Workers
|
||
| Recruiting |
NCT04543877 -
WHNRC (Western Human Nutrition Research Center) Fiber Intervention Study
|
Early Phase 1 | |
| Completed |
NCT03859934 -
Metabolic Effects of Melatonin Treatment
|
Phase 1 | |
| Completed |
NCT03429920 -
Effect of Fermented Soy Based Product on Cardiometabolic Risk Factors
|
N/A | |
| Completed |
NCT06065241 -
Quantifiably Determine if the Botanical Formulation, LLP-01, Has a Significant Clinical Effect on Proteomic Inflammatory Biomarkers and Epigenetic Changes in Healthy, Older Individuals.
|
N/A | |
| Completed |
NCT05864352 -
The Role of Dietary Titanium Dioxide on the Human Gut Microbiome and Health
|
||
| Completed |
NCT03318731 -
Efficacy and Safety of Fenugreek Extract on Markers of Muscle Damage and Inflammation in Untrained Males
|
N/A | |
| Not yet recruiting |
NCT06134076 -
Comparing Effects of Fermented and Unfermented Pulses and Gut Microbiota
|
N/A | |
| Not yet recruiting |
NCT06422494 -
The Role of the Adrenergic System in Hypoglycaemia Induced Inflammatory Response in People With Type 1 Diabetes and People Without Type 1 Diabetes-RAID-II
|
N/A |