text: Background
  Opioid analgesics are generally used to combat the pain associated with cancerous conditions. These agents not only inhibit respiratory function and cause constipation, but also induce other significant side effects such as addiction and tolerance, all of which further contribute to a reduced quality of life for cancer patients. Thus, in the present study, the effects of electro-acupuncture treatment (EA) on mechanical allodynia were examined in a cancer pain mouse model.
  
entities.text: ['cancerous']
entities.type: Pathological_formation
entities.entity_id: PMC-2724388-sec-01_T1
entities.text: ['cancer']
entities.type: Pathological_formation
entities.entity_id: PMC-2724388-sec-01_T2
entities.text: ['cancer']
entities.type: Pathological_formation
entities.entity_id: PMC-2724388-sec-01_T3
entities.text: ['respiratory']
entities.type: Anatomical_system
entities.entity_id: PMC-2724388-sec-01_T4