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GFAP and Fos immunoreactivity in lumbo-sacral spinal cord and medulla oblongata after chronic colonic inflammation in rats

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World Journal of Gastroenterology 2005年第31期11卷 4827-4832页

作者： Yi-Ning Sun Jin-Yan Luo Zhi-Ren Rao Li Lan Li Duan Department of Gastroenterology The Second Hospital of Xi'an Jiaotong University Xi'an 710004 Shaanxi Province China Department of Neurosciences the Fourth Military Medical University Xi'an 710032 Shaanxi Province China

AIM： To investigate the response of astrocytes and neurons in rat lumbo±sacral spinal cord and medulla oblongata induced by chronic colonic inflammation, and the relationship between them. METHODS： Thirty-three male Sprague-Dawley rats were randomly divided into two groups： experimental group （n = 17）, colonic inflammation was induced by intra-luminal administration of trinitrobenzenesulfonic acid （TNBS）; control group （n = 16）, saline was administered intra-luminally. After 3, 7, 14, and 28 d of administration, the lumbo-sacral spinal cord and medulla oblongata were removed and processed for anti-glial fibrillary acidic protein （GFAP）, Fos and GFAP/Fos immunohistochemistry. RESULTS： Activated astrocytes positive for GFAP were mainly distributed in the superficial laminae （laminae Ⅰ-Ⅱ） of dorsal horn, intermediolateral nucleus （laminae Ⅴ）, posterior commissural nucleus （laminae Ⅹ） and anterolateral nucleus （laminae Ⅸ）. Fos-IR （Fos-immunoreactive） neurons were mainly distributed in the deeper laminae of the spinal cord （laminae Ⅲ-Ⅳ, Ⅴ-Ⅵ）. In the medulla oblongata, both GFAP-IR astrocytes and Fos-IR neurons were mainly distributed in the medullary visceral zone （MVZ）. The density of GFAP in the spinal cord of experimental rats was significantly higher after 3, 7, and 14 d of TNBS administration compared with the controls （50.44±16.8, 29.24±6.5, 24.14±5.6, P〈0.05）. The density of GFAP in MVZ was significantly higher after 3 d of TNBS administration （34.34±2.5, P〈0.05）. After 28 d of TNBS administration, the density of GFAP in the spinal cord and MVZ decreased and became comparable to that of the controls （18.04±4.9, 14.64±6.4, P〉0.05）. CONCLUSION： Astrocytes in spinal cord and medulla oblongata can be activated by colonic inflammation. The activated astrocytes are closely related to Fos-IR neurons. With the recovery of colonic inflammation, the activity ofastrocytes in the spinal cord and medulla oblongata is reduced.

关键词： Animals Astrocytes Chronic Disease colonic diseases Glial Fibrillary Acidic Protein Inflammation Male Medulla Oblongata Proto-Oncogene Proteins c-fos Rats Rats, Sprague-Dawley Spinal Cord Trinitrobenzenesulfonic Acid

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Quality of life after laparoscopic and open colorectal surgery: A systematic review

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World Journal of Gastroenterology 2010年第40期16卷 5035-5041页

作者： Sanne AL Bartels Malaika S Vlug Dirk T Ubbink Willem A Bemelman Department of Surgery Academic Medical Center Department of Quality Assurance and Process Innovation Academic Medical Center

This study was a systematic review of the available evidence on quality of life in patients after laparoscopic or open colorectal surgery. A systematic review was performed of all randomized clinical trials (RCTs) that compared laparoscopic with open colorectal surgery. Study selection, quality assessment and data extraction were carried out independently by two reviewers. Primary endpoint was quality of life after laparoscopic and open colorectal surgery, as assessed by validated questionnaires. The search resulted in nine RCTs that included 2263 patients. Shortand long-term results of these RCTs were described in 13 articles. Postoperative follow-up ranged from 2 d to 6.7 years. Due to clinical heterogeneity, no meta-analysis could be conducted. Four RCTs did not show any difference in quality of life between laparoscopic or open colorectal surgery. The remaining five studies reported a better quality of life in favor of the laparoscopic group on a few quality of life scales at time points ranging from 1 wk to 2 years after surgery. In conclusion, based on presently available high-level evidence, this systematic review showed no clinically relevant differences in postoperative quality of life between laparoscopic and open colorectal surgery.

关键词： Quality of life Colorectal surgery Laparoscopy colonic neoplasms colonic diseases Inflammatory bowel diseases

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