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Plant-Animal Research Competition

Four Awards ($1,500 each) + publication expenses

We are announcing a competition for external investigator reports dealing with plant-animal communications, which influence animal/human tissues. Eligible studies can vary in their methodology, but state-of-the-art research submissions are encouraged.

Awards Guidelines and Program:
  1. Four Awards granted ($1,500 each) + reimburse of publication expenses
  2. All reports prepared according to the... read more


Published: 2014-10-27

Modeled Behavioral Evaluation of the Neuropathic Pain with Social Defect in Rats: A Preliminary Methodology Evaluation

Xian Wang, Shan Wu Feng, Fuzhou Wang, Shiqin Xu

(Department of Anesthesiology, Nanjing Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu, China (mainland))

Med Sci Monit Basic Res 2014; 20:164-169

DOI: 10.12659/MSMBR.892615


Background: Social defect and chronic pain are 2 major health problems and recent data has demonstrated that they generally exist concurrently. However, a powerful evaluation model on the behavioral change is lacking. This study was designed to evaluate the behavioral curves using a statistically modeled trajectory analysis in neuropathic animals with or without social defect exposure.
Material and Methods: After approval by the institutional animal care committee, Sprague-Dawley rats were randomized into different interventional groups with 15 animals each. Sprague-Dawley rats underwent spared nerve injury (SNI) to establish the neuropathic pain model, of which the mechanical withdrawal threshold was measured using von Frey filaments for a period of 105 days. Otherwise, a modified version of the resident (Long-Evans rats)-intruder paradigm was applied to produce a social defect animal model through the elevated plus maze (EPM). After raw data collection, we modeled them into a powerful statistical effects analysis to build up the behavioral change tendency in single SNI or in combined SNI and social defect animals.
Results: The random and fixed effects analyses of the pain behavior after SNI were successfully modeled and demonstrated a gradient recovery tendency during the 15-week post-injury observational period. Correspondingly, SNI rats exhibited increased social defected symptoms, as indicated by the increased anxiety-like behavior in the EPM test. In addition, continuous social defect stress for 5 days or 10 days, respectively, partially attenuated and exacerbated SNI-induced allodynia in both random and fixed effects models. Fiv... read more

Keywords: chronic pain, Models, Animal, Neuralgia, social determinants of health



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