Severity: Warning
Message: file_get_contents(https://...@gmail.com&api_key=61f08fa0b96a73de8c900d749fcb997acc09): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
Filename: helpers/my_audit_helper.php
Line Number: 143
Backtrace:
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 143
Function: file_get_contents
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 209
Function: simplexml_load_file_from_url
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3098
Function: getPubMedXML
File: /var/www/html/application/controllers/Detail.php
Line: 574
Function: pubMedSearch_Global
File: /var/www/html/application/controllers/Detail.php
Line: 488
Function: pubMedGetRelatedKeyword
File: /var/www/html/index.php
Line: 316
Function: require_once
Severity: Warning
Message: Attempt to read property "Count" on bool
Filename: helpers/my_audit_helper.php
Line Number: 3100
Backtrace:
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3100
Function: _error_handler
File: /var/www/html/application/controllers/Detail.php
Line: 574
Function: pubMedSearch_Global
File: /var/www/html/application/controllers/Detail.php
Line: 488
Function: pubMedGetRelatedKeyword
File: /var/www/html/index.php
Line: 316
Function: require_once
Obesity is a health problem caused by a diet rich in energy and the sedentary lifestyle of modern societies. A leptin deficiency is one of the worst causes of obesity, since it results in morbid obesity, a chronic disease without a cure. Leptin is an adipokine secreted in a manner dependent on the circadian rhythm that ultimately reduces food intake. We studied cellular alterations in brain of leptin-deficient obese animals and tested whether these alterations are reflected in abnormal behaviors. Obesity induced increases in oxidative stress and the unfolded protein response caused by endoplasmic reticulum stress. However, the subsequent signaling cascade was disrupted, blocking possible systemic improvements and increasing the production of misfolded proteins that trigger autophagy. Up-regulated autophagy was not indefinitely maintained and misfolded proteins accumulated in obese animals, which led to aggresome formation. Finally, neurodegenerative markers together with anxiety and stress-induced behaviors were observed in leptin-deficient mice. As oxidative stress has an essential role in the development of these harmful effects of obesity, melatonin, a powerful antioxidant, might counteract these effects on the brain. Following treatment with melatonin, the animals' antioxidant defenses were improved and misfolded protein, proteasome activity, and autophagy decreased. Aggresome formation was reduced due to the reduction in the levels of misfolded proteins and the reduction in tubulin expression, a key element in aggresome development. The levels of neurodegenerative markers were reduced and the behaviors recovered. The data support the use of melatonin in therapeutic interventions to reduce brain damage induced by leptin deficiency-dependent obesity.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1007/s12035-017-0796-8 | DOI Listing |
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!