Impact of occupational stress on irritable bowel syndrome pathophysiology and potential management in active duty noncombat Greek military personnel: a multicenter prospective survey

Work-related problems and the psychosocial characteristics of individuals with irritable bowel syndrome: an updated literature review

BACKGROUND

Irritable bowel syndrome (IBS) is a common, functional gastrointestinal disorder. Because IBS often develops and worsens with stress, it requires treatment from both physical and mental perspectives. Recent years have seen increasing reports of its impact on the daily performance and productivity of workers with IBS, leading to sick leaves and lower quality of life. Therefore, this narrative review aimed to summarize the work and psychosocial characteristics of individuals with IBS.

MAIN BODY

Workers with IBS report greater occupational stressors and work productivity impairments, including presenteeism or absenteeism, in addition to suffering from psychological distress, low quality of life, and medical and economic problems, similar to those with IBS in the general population. Anxiety about abdominal symptoms, as well as the severity of IBS, is related to the degree of interference with one's work. Regarding the association between characteristics of work and IBS, shift work and job demands/discretion have been associated with IBS. Studies on specific occupations have revealed associations between IBS and various occupational stressors in healthcare workers, firefighters, and military personnel. Telecommuting, which has become increasingly popular during the coronavirus disease pandemic, has not found to improve IBS. Moreover, the effectiveness of medication, diet, and a comprehensive self-management program, including cognitive behavioral therapy, in improving the productivity of workers with IBS have been examined.

CONCLUSION

As mentioned above, the IBS of workers is related not only to their problematic physical and mental health but also to work-related problems; workers with IBS exhibit severe occupational stress factors and work productivity impairment. Further research is required to develop efficient and appropriate interventions for workers.

Valproate reverses stress-induced somatic hyperalgesia and visceral hypersensitivity by up-regulating spinal 5-HT2C receptor expression in female rats

Sodium valproate (VPA) has analgesic effects in clinical and experimental studies, but the mechanisms are still unclear. The present study examined the effects of VPA on stress-induced somatic hyperalgesia and visceral hypersensitivity and the role of 5-HT_2C receptors in the spinal cord. Repeated 3 day forced swim (FS) significantly reduced the thermal withdrawal latency and mechanical withdrawal threshold, and increased the magnitude of the visceromotor response to colorectal distention compared to the baseline values in rats. The somatic hyperalgesia and visceral hypersensitivity were accompanied by significant down-regulation of 5-HT_2C receptor expression in the L4-L5 and L6-S1 dorsal spinal cord. Intraperitoneal administration of VPA (300 mg/kg) before each FS and 1 day post FS prevented the development of somatic hyperalgesia and visceral hypersensitivity induced by FS stress, as well as down-regulation of 5-HT_2C receptors in the spinal cord. The reversal of somatic hyperalgesia and visceral hypersensitivity by VPA in FS rats was blocked by intrathecal administration of the selective 5-HT_2C receptor antagonist RS-102221 (30 μg/10 μL) 30 min after each VPA injection. The results suggest that VPA attenuates FS-induced somatic hyperalgesia and visceral hypersensitivity by restoring down-regulated function of 5-HT_2C receptors in the spinal cord.