Levofloxacin in the Treatment of Chronic Functional Constipation Associated With PIB(Peristaltic Contraction-Inhibiting Bacterium) Infection

Constipation, a prevalent clinical condition, significantly impacts patients' quality of life, yet relevant clinical trial technical guidelines have yet to be issued domestically. This disease encompasses various classifications based on etiology, pathology, and pathophysiological characteristics. Slow transit constipation (STC), specifically, arises from colonic motility disorders and is recognized as a neuromuscular colonopathy. Currently, limited therapeutic options are available for patients with refractory STC, rendering it a common ailment associated with substantial disease burden and uncertain etiology. Consequently, identifying the cause and developing effective, targeted, and safe treatment strategies is of paramount importance. Our research team has made a groundbreaking international discovery, revealing that STC is caused by infection with a novel Shigella-like bacterium, termed the peristaltic contraction-inhibiting bacterium (PIB), which secretes docosapentaenoic acid (DPA), an unsaturated fatty acid. The pathogenic mechanism involves inhibition of intestinal peristalsis, subsequently slowing colonic transit. Preliminary epidemiological studies confirm the exclusive presence of PIB in feces from patients with intractable constipation, whereas it is virtually absent in healthy individuals. Notably, consumption of high-dose DPA does not affect colonic transit or induce constipation; however, intracolonic administration does. In response to PIB-induced STC, our …

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Ji Xuan  ·  02580864222  ·  helio0009@126.com

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