Activity, Motor Control & Coordination
Pain - Thermal Allodynia / Hyperalgesia
Pain - Spontaneous Pain - Postural Deficit
Pain - Mechanical Allodynia / Hyperalgesia
Anxiety & Depression Disorder
Learning/Memory - Attention - Addiction
Physiology & Respiratory Research
Metabolism - Food & Drink Intake
Pain
Central Nervous System (CNS)
Neurodegeneration
Sensory system
Motor control
Mood Disorders
Other disorders
Muscular system
Joints
Metabolism
Cross-disciplinary subjects
Preclinical studies and opioids: role in crisis management in the United States Authors
Matias DO, Sisnande T, Martins AF, Amaral MJD, Santos BLR, Miranda ALP, Lima LMTR.
Lab
Instituto Nacional de Metrologia, Qualidade e Tecnologia, Duque de Caxias, RJ, Brasil.
Journal
Braz J Med Biol Res.
Abstract
Neuropathic pain is a condition with varying origins, including reduced dietary micronutrient intake. Phytate is a polyphosphate found in seeds and grains that can act as an antinutrient due to the ability of sequester essential divalent metals. Here we tested whether moderate dietary phytate intake could alter nociceptive pain. We subjected weaning mice to a chow supplemented with 1% phytate for eight weeks. Body weight gain, glycemic responses, food ingestion, water ingestion, and liver and adipose tissue weights were not altered compared to controls. We observed a decreased mechanical allodynia threshold in the intervention group, although there were no changes in heat- or cold-induced pain. Animals consuming phytate showed reduced spinal cord tumor necrosis factor (TNF), indicating altered inflammatory process. These data provide evidence for a subclinical induction of mechanical allodynia that is independent of phytate consumption in animals with otherwise normal phenotypic pattern.
BIOSEB Instruments Used:
Von Frey Filaments (BIO-VF-M)