Chondrocyte cocultures with stromal vascular fraction of adipose tissue promote cartilage regeneration in vivo / 华西口腔医学杂志

OBJECTIVE@#This study aimed to compare the cartilage regeneration of the stromal vascular fraction (SVF) cells and adipose-derived mesenchymal stem cells (ASCs) cocultured with chondrocytes seeded on the scaffolds.@*METHODS@#The cellular morphologies and proliferation capabilities on the scaffolds were evaluated. The scaffolds with the cocul-ture of ASCs/SVF and chondrocytes were implanted into the full thickness cartilage defective rabbit joints for 10 weeks.@*RESULTS@#The cells seeded into the scaffolds showed good adhesion and proliferation. Implantation with SVF and chondrocytes revealed desirable in vitro healing outcomes.@*CONCLUSIONS@#The SVF cells were better than ASCs in terms of the formation of cartilage matrix in a coimplantation model. Without in vitro expansion, the SVF cells are good cell sources for cartilage repair.

Clinical characteristics of non-perianal fistulating Crohn's disease in China: a single-center experience of 184 cases / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>There is little information of non-perianal fistulating Crohn's disease in the consensus published by the European Crohn's and Colitis Organization in 2006 and 2010. This study was designed to demonstrate the clinical characteristics of non-perianal fistulating Crohn's disease among homogenous Chinese population.</p><p><b>METHODS</b>One-hundred-and-eighty-four patients were retrospectively collected. All of these patients were diagnosed of Crohn's disease between February 2001 and April 2011.</p><p><b>RESULTS</b>The male-to-female ratio was 2.7:1. The most common symptoms at onset were abdominal pain (88.0%), diarrhea (34.7%), and fever (28.3%). The most common disease location and behavior at diagnosis were small bowel (56.0%) and penetrating (51.6%). Among 324 non-perianal fistulae, the most common types were ileocolonic anastomotic (30.9%), terminal ileocutaneous (19.7%), and enteroenteric anastomotic (11.4%). One-hundred-and-thirty- eight (75.0%) patients received antibiotics, and β-lactam (85.5%) and metronidazole (67.4%) are most frequently used. One-hundred-and-seventy-eight (96.7%) patients suffered 514 surgical operations, and the cumulative surgical rates after 1, 3, and 5 years were 38.0%, 52.2%, and 58.7% respectively. Nine patients died during the follow-up period, and the cumulative survival rates after 1, 3, and 5 years were 97.8%, 96.7%, and 96.2% respectively.</p><p><b>CONCLUSIONS</b>This study displayed the clinical characteristics of non-perianal fistulating Crohn's disease in our center. Large population-based studies are required for further investigation in China.</p>

Open abdomen management treatment of liver injury in rats with abdominal compartment syndrome and sepsis / 中华外科杂志

<p><b>OBJECTIVE</b>To evaluate the open and closed management treatment of liver injury in rats with sepsis and abdominal compartment syndrome (ACS).</p><p><b>METHODS</b>The sepsis and ACS rats (n = 72) were randomized divided into two groups. One group used closed management (n = 36), the other accepted the open abdomen management (n = 36). The rats were killed at 1, 6 h, 1, 3, 5, 7 d after operation. Blood was collected for liver function tests. Liver sections assessed pathologically and the expressions of Toll-like receptor 4 (TLR4), tumor necrosis factor (TNF)-α, interleukin (IL)-6, signal transducers actuators of transcription (STAT3) and suppressor of cytokine signaling 3 (SOCS3) of rat livers were examined by RT-PCR.</p><p><b>RESULTS</b>The early stage after operation, TNF-α and IL-6 concentrations, STAT3 expressions in rat liver were higher in open abdomen rats than the closed management ones (P < 0.05). TLR4 and SOCS3 expressions were lower in open abdomen rats than the closed management ones (P < 0.05). Aspartate aminotransferase, alanine aminotransferase levels also was lower in open abdomen ones (P < 0.05).</p><p><b>CONCLUSIONS</b>The randomized study demonstrates that open abdomen management could improve liver regeneration in the early stage after operation. Also open abdomen could reduce inflammatory response by reducing TLR4 expressions.</p>

Experimental study of liver injury in rats of abdominal infection with abdominal compartment syndrome / 中华胃肠外科杂志

<p><b>OBJECTIVE</b>To evaluate the liver injury in rats of abdominal infection complicated with abdominal compartment syndrome(ACS).</p><p><b>METHODS</b>SD rats were divided into four groups, including the sham group, the abdominal infection group, the ACS group, and the abdominal infection plus ACS group (combination group). Rats were sacrificed at 1 h, 6 h, 12 h, 24 h after operation with 6 rats at each time point. Blood specimens were collected for liver function testing. Liver tissues were assessed by pathologically examination with hepatic injury severity scoring(HISS). The expressions of Toll-like receptor 4 (TLR4),TNF-α and IL-6 were examined by reverse transcription- polymerase chain reaction.</p><p><b>RESULTS</b>At 24 h after operation, as compared to the sham group(18.2±1.3) U/L and (105.6±25.5) U/L, ALT and AST increased obviously in the abdominal infection group(68.2±17.5) U/L and (184.6±36.1) U/L, the ACS group (305.2±128.2) U/L and (638.0±104.8) U/L and the combination group (409.2±67.1) U/L and (743.2±250.2) U/L, while the combination group had a higher level as compared to the infection group and the ACS group(all P<0.05). HISS scores were significantly higher in the abdominal infection group(5.0), the ACS group(5.5) and the combination group(7.0) as compared to the sham group(1.5), but no significant differences were found among the three groups at 24 h after operation. Expressions of TLR4, TNF-α and IL-6 were significantly higher in combination group than those in the other three groups.</p><p><b>CONCLUSIONS</b>Liver function can be affected by abdominal infection and ACS. Abdominal infection plus ACS results in more severe liver injury.</p>

Maintenance effect of polyglycosides of Tripterygium wilfordii on remission in postoperative Crohn disease / 中华胃肠外科杂志

<p><b>OBJECTIVE</b>To observe the maintenance effect of polyglycosides of Tripterygium wilfordii (GTW) on remission in postoperative Crohn disease (CD).</p><p><b>METHODS</b>From 2005 to 2007, 45 adult cases of postoperative Crohn disease were randomly divided into two groups, GTW group and mesalazine group, which received GTW and mesalazine treatment respectively. CD activity index (CDAI) and clinical markers were collected at 0, 3, 6, 12 months or at the onset of symptoms. Ileocolonoscopy was performed at the end of the trial (1 year after operation) or at the onset of symptoms, and recurrence score were recorded.</p><p><b>RESULTS</b>No clinical recurrence was ascertained in both groups at 3 months. Four patients (18.2%) in GTW group relapsed and 5 (21.7%) in mesalazine group relapsed at 6 months (P=0.530). Seven patients (31.8%) in GTW group and 9 (39.1%) in mesalazine group relapsed at one year (P=0.421). Ten patients (45.5%) in GTW group had endoscopic recurrence compared with 14 (60.9%) in mesalazine group at one year(P=0.231). There were no significant differences between two groups.</p><p><b>CONCLUSION</b>GTW is similar to mesalazine in maintenance of remission of postoperative Crohn disease.</p>

Clinical characteristics and surgical treatment of Crohn disease complicated with intra-abdominal abscess / 中华胃肠外科杂志

<p><b>OBJECTIVE</b>To elucidate the clinical characteristics and surgical treatment of intra-abdominal abscess in patients with Crohn disease(CD).</p><p><b>METHODS</b>Clinical data of 39 patients with CD complicated with intra-abdominal abscess from 2000 to 2005 were analyzed retrospectively.</p><p><b>RESULTS</b>The cumulative incidence of intra-abdominal abscesses was 27.5%. Of the 39 CD patients with abscess, 61.5% had surgery the time of present study. The mean age of the patients with abscesses was (34.7+/- 12.3) years, and the duration of illness from the onset of CD until development of an abscess was (0-22) years,with 5 years of the average duration. In terms of location of abscess, it occurred most often on the right side (76.9%), especially near the site of anastomosis (48.7%). Most patients (34 cases, 94.4%) were treated with surgical drainage and intestinal resection.</p><p><b>CONCLUSIONS</b>Abscess formation was noted in 27.5% of patients with CD, with nearly half of abscesses occurring near the anastomotic site. The mean age of patients with abscess was 35 years, with 5 years of the duration of illness. Most abscesses were treated with operative drainage and intestinal resection.</p>

Clinical effects of ulinastatin in treating extensive burns patients of shock period / 中国基层医药

Objective To investigate the clinical effects of ulinastatin in treating extensive burns patients of shock period.Methods 15 patients with extensive burns were assigned to the treatment group(8 eases)and the control group(7 cases)randomly,patients in the control group were given the routine therapy,while those in the treatment group Were also given ulinastatin in the early stage of shock period.The life symptoms,urine amount, shock lasting time and complications were observed in the fourth day after injury.Results Compared to the control group,the life symptoms were steadier,urine amount was more of equivalent,shock lasting time was shorter,and complications were less in the treatment group.Conclusion In the early stage of the shock period for extensive burns patients,ulinastatin can help the patients live through the shock period steady.

Management of tertiary peritonitis in the patients complicated with intestinal fistula / 中华胃肠外科杂志

<p><b>OBJECTIVE</b>To investigate the etiology and management of tertiary peritonitis in the patients with intestinal fistula.</p><p><b>METHODS</b>One hundred and fifty-three cases of intestinal fistula complicated with tertiary peritonitis were reviewed. The microbiological characteristics, treatment Methods and outcomes were analyzed.</p><p><b>RESULTS</b>There were 114 males and 39 females with a mean age of (42+/- 19) years. The main causes of intestinal fistula included gastrointestinal surgery (40.5%), trauma (31.4%) and severe pancreatitis (14.4%), etc. The most common cultured bacteria of 157 specimens from 79 patients with tertiary peritonitis were Escherichia coli (24.2%), Pseudomonas aeruginosa (12.1%), Staphylococcus aureus (10.8%), Enterobacter cloacae (10.2%), Klebsiella pneumoniae (8.3%). Debridement of the necrotic tissues, drainage of the abscess, continuous rinsing plus negative pressure drainage and antibiotics treatment were performed in 52 cases. Nineteen patients only changed from simple tube drainage to continuous rinsing plus negative pressure drainage. Twenty- eight patients changed to continuous rinsing plus negative pressure drainage and received antibiotics as well. Thirty- six patients received antibiotics and ecoimmune nutrition, while 18 patients only received ecoimmun nutrition.</p><p><b>CONCLUSIONS</b>Intestinal fistula complicated with tertiary peritonitis was mainly caused by residual infectious focus and inappropriate drainage. The rational treatments include reoperation for debridement of the necrotic and infectious tissues, changing drainage to continuous rinsing plus negative pressure drainage, appropriate usage of antibiotics, and ecoimmune nutrition.</p>

Diagnosis and management of Crohn disease complicated with gastrointestinal fistulae / 中华胃肠外科杂志

<p><b>OBJECTIVE</b>To investigate the diagnosis and treatment of patients with Crohn disease (CD) complicated with gastrointestinal fistulae.</p><p><b>METHODS</b>Clinical data of sixty-two cases with CD complicated with gastrointestinal fistula e from 1978 to 2004 were analyzed.</p><p><b>RESULTS</b>These were 68 external fistulae in 6 2 patients including recurrent fistulae in 6 cases, internal fistulae in 8 cases . Twenty- seven fistulae were located in the terminal ileum and 21 fistulae wer e located in ileocolic anastomosis site. The main surgery included 14 ileocecal resections with primary anastomosis and 26 resections of original ileocolic anastomosis with fistula and re-anastomosis. The incidence of recurrence was lower (15.4% ) in patients with postoperative medication including sulfasalazine and immunomodulator than that (34.8% ) in patients without postoperative immunomodulator,but the recurrence time was longer [(40+/- 17) months] in patients with postoperative medication than that [(8+/- 3)months] in the patients without postoperative specific medication.</p><p><b>CONCLUSIONS</b>Most CD fistulae are external fistulae,most of the external fistulae are treated by resection of the fistula and anastomosis. Specific medication including sulfasalazine,mesalamine and immunomodulators should be used to prevent postoperative complications and CD recurrence.</p>