铋盐和有无酸抑制情况下幽门螺杆菌感染的对比:透射电子显微镜研究幽门螺杆菌规范防治科普园地
2024年09月15日 06:25陕西听全文Bismuth salts with versus without acidsuppression for Helicobacter pylori infection: A transmission electronmicroscope study
铋盐和有无酸抑制情况下幽门螺杆菌感染的对比:透射电子显微镜研究
摘 要 Abstract
Background:
Bismuth oxychloride produced by interaction of bismuth compounds with gastric acid is believed to damage Helicobacter pylori. The effect of bismuth salts on H. pylori in the presence of strong acid suppression is unknown. This randomized trial aimed to determine effects of bismuth subcitrate on H. pylori with and without acid suppression.
背景:
铋化合物与胃酸相互作用产生的氯氧化铋被认为会损害幽门螺杆菌。在强酸抑制下,铋盐对幽门螺杆菌的影响尚不清楚。这项随机试验旨在确定在有酸抑制和无酸抑制的情况下,次枸橼酸铋对幽门螺杆菌的影响。
Materials and Methods:
H. pylori -positive participants were allocated (1:1:1) to receive (a) no treatment (control), (b) colloidal bismuth subcitrate (CBS, 125 mg/tab), or (c) CBS plus high-dose proton-pump inhibitor (PPI), esomeprazole 40 mg q.i.d. for 3 days. In the treatment groups, CBS was given: 1 dose, 1 hour before endoscopy, 1 dose, 4 hours before endoscopy, or q.i.d. 24 hours before endoscopy. The study end-points were evaluated using transmission electron microscopy to observe the morphological changes of H. pylori in antral and corpus biopsies.
材料和方法:
幽门螺杆菌阳性的参与者被随机分配(1:1:1)接受(a)无治疗(对照),(b)胶体次枸橼酸铋(CBS,125毫克/片),或(c)CBS加大剂量质子泵抑制剂(PPI),埃索美拉唑40毫克 q.i.d,为期3天。在治疗组中,CBS给药情况为,内窥镜检查前1小时给药1次,内窥镜检查前4小时给药1次,或内窥镜检查前24小时q.i.d。研究的终点是用透射电子显微镜来观察胃窦和胃体活检中幽门螺杆菌的形态变化
结果:
27名幽门螺杆菌携带者参加了这项试验,其终点是定性的。在无治疗组中,观察到幽门螺杆菌的活跃出芽和复制。在CBS组,观察到幽门螺杆菌的细胞肿胀、空泡化、结构退化和细胞壁糜烂,与何时给予CBS没有明显关系。在接受大剂量PPI加CBS或仅接受CBS的患者中,无论在内窥镜检查前1、4或24小时给予CBS,存在的幽门螺杆菌数量或细菌损伤的严重程度都没有差异。
Conclusions:
Based on direct morphological evaluation, the toxic effect of CBS treatment on H. pylori was demonstrated independent of acid suppression with PPI.
结论:
基于直接的形态学评估,CBS治疗对幽门螺杆菌的毒性作用被证明与PPI的抑酸作用无关。
2024年09月15日 06:25陕西听全文Bismuth salts with versus without acidsuppression for Helicobacter pylori infection: A transmission electronmicroscope study
铋盐和有无酸抑制情况下幽门螺杆菌感染的对比:透射电子显微镜研究
摘 要 Abstract
Background:
Bismuth oxychloride produced by interaction of bismuth compounds with gastric acid is believed to damage Helicobacter pylori. The effect of bismuth salts on H. pylori in the presence of strong acid suppression is unknown. This randomized trial aimed to determine effects of bismuth subcitrate on H. pylori with and without acid suppression.
背景:
铋化合物与胃酸相互作用产生的氯氧化铋被认为会损害幽门螺杆菌。在强酸抑制下,铋盐对幽门螺杆菌的影响尚不清楚。这项随机试验旨在确定在有酸抑制和无酸抑制的情况下,次枸橼酸铋对幽门螺杆菌的影响。
Materials and Methods:
H. pylori -positive participants were allocated (1:1:1) to receive (a) no treatment (control), (b) colloidal bismuth subcitrate (CBS, 125 mg/tab), or (c) CBS plus high-dose proton-pump inhibitor (PPI), esomeprazole 40 mg q.i.d. for 3 days. In the treatment groups, CBS was given: 1 dose, 1 hour before endoscopy, 1 dose, 4 hours before endoscopy, or q.i.d. 24 hours before endoscopy. The study end-points were evaluated using transmission electron microscopy to observe the morphological changes of H. pylori in antral and corpus biopsies.
材料和方法:
幽门螺杆菌阳性的参与者被随机分配(1:1:1)接受(a)无治疗(对照),(b)胶体次枸橼酸铋(CBS,125毫克/片),或(c)CBS加大剂量质子泵抑制剂(PPI),埃索美拉唑40毫克 q.i.d,为期3天。在治疗组中,CBS给药情况为,内窥镜检查前1小时给药1次,内窥镜检查前4小时给药1次,或内窥镜检查前24小时q.i.d。研究的终点是用透射电子显微镜来观察胃窦和胃体活检中幽门螺杆菌的形态变化
结果:
27名幽门螺杆菌携带者参加了这项试验,其终点是定性的。在无治疗组中,观察到幽门螺杆菌的活跃出芽和复制。在CBS组,观察到幽门螺杆菌的细胞肿胀、空泡化、结构退化和细胞壁糜烂,与何时给予CBS没有明显关系。在接受大剂量PPI加CBS或仅接受CBS的患者中,无论在内窥镜检查前1、4或24小时给予CBS,存在的幽门螺杆菌数量或细菌损伤的严重程度都没有差异。
Conclusions:
Based on direct morphological evaluation, the toxic effect of CBS treatment on H. pylori was demonstrated independent of acid suppression with PPI.
结论:
基于直接的形态学评估,CBS治疗对幽门螺杆菌的毒性作用被证明与PPI的抑酸作用无关。