الملخص
The ICR(Institute of Cancer Research)mouse infection model was constructed to study the pathogenicity of Sal-monella Telelkebir serotype,and the pathogenic identification of mouse isolates was carried out.Observe the bacterial excretion cycle,evaluate the pathogenicity of Salmonella serotype to mice,and calculate the LD50 by the changes in clinical characteris-tics,histopathology and tissue bacterial load of infected mice;by flight mass spectrometry,biochemical identification,serotype identification,molecular typing and other experiments,compared with human isolates;virulence gene analysis was carried out by PCR experiment and whole genome sequencing.The LD50 of Salmonella Telelkebir is 2.67 × 108 CFU/mL;curling and fluffing may occur 0.5 h after infection;autopsy of dead mice showed that the small intestine was severely congested,with more bubbles and fluid accumulation,cecal necrosis,liver apical degeneration and necrosis,necrotic foci on the surface of the kidney and spleen atrophy;the bacterial load of spleen,kidney,lung,liver and jejunum in mice reached its peak at 3 days after infection,while that of heart at 6 days;the bacterial excretion time of the high-dose group exceeded 100 days;The level of CD3 in tissues increased with increasing dose,with inflammatory cell infiltration,myocardial capillary dilation and hyperemia,large area of vacuoles,degeneration and necrosis of hepatocytes,obvious enlargement of splenic sinus,blurred zoning,thickening of glomerular basement membrane,partial exfoliation of ciliated epithelium,atrophy and exfoliation of jejunal villi;PCR and whole genome sequencing revealed Salmonella-related virulence genes such as cdtB,plt A and pltB.This study was the first to successfully establish the ICR mouse model of Salmonella Telelkebir,demonstrating that this serotype of Salmonella has some pathogenicity.
الملخص
<p><b>OBJECTIVE</b>To explore the feasibility and safety of enteral nutrition in preoperative bowel preparation for rectal cancer patients undergoing radical operation.</p><p><b>METHODS</b>Sixty rectal cancer patients undergoing selective low anterior resection were randomized into the trial group(n=30) and the control group(n=30). Patients in the trial group received clean liquid integral protein diet for 3 days before operation without mechanical bowel preparation. Patients in the control group received traditional diet and mechanical bowel preparation. The intraoperative and postoperative clinical data, the quality of bowel preparation, postoperative complications, and nutritional parameters were compared between the two groups.</p><p><b>RESULTS</b>There were no significant differences in clinicopathological characteristics between the two groups before operation. The operative time, blood loss, quality of bowel preparation as well as postoperative hospital stay were not significantly different(all P>0.05). While the time to first flatus [(2.53±0.91) d vs. (3.03±0.68) d] and semi-liquid diet intake[(3.95±0.83) d vs. (4.52±1.14) d] were significantly shorter in the trial group as compared with the control group(all P<0.05). There were no death and no significant difference in postoperative complications [16.7%(5/30) vs. 20.0%(6/30), P>0.05]. The levels of postoperative total protein, albumin, and prealbumin decreased significantly. Meanwhile, the levels of postoperative albumin[(36.2±2.5) g/L vs. (33.5±2.6) g/L, P<0.01] and prealbumin [(325.4±28.2) mg/L vs. (302.5±34.2) mg/L, P<0.01] in the trial group were significantly higher than those in the control group.</p><p><b>CONCLUSIONS</b>Preoperative enteral nutrition can replace the mechanical bowel preparation with better efficacy, and improve the postoperative nutritional status without increasing surgical risk in rectal cancer patients undergoing radical operation.</p>
الموضوعات
Humans , Digestive System Surgical Procedures , Enteral Nutrition , Postoperative Complications , Preoperative Care , Methods , Rectal Neoplasms , General Surgeryالملخص
<p><b>OBJECTIVE</b>To study the weak loop in the treatment of children with out-of-hospital cardiac arrest (OHCA) and the treatment strategy for improvement.</p><p><b>METHOD</b>Data of a total of 133 patients with OHCA who were rescued by Wuxi pre-hospital care center during the 2005 - 2011 were analyzed.</p><p><b>RESULT</b>The main causes of pediatric OHCA were drowning (52/133) and accidental injury disease (30/133). The cases of OHCA were mainly located in public places (60/133) and the majority occurred in winter and summer. The emergency rescue response time was (13.21 ± 8.09) min, the rate of first witness treatment was 3.91%, intubations was performed in 11.11%, opening of vein access was 23.15% and one case got restoration of spontaneous circulation (ROSC).</p><p><b>CONCLUSION</b>The rate of ROSC of pre-hospital cardiac arrest in children was significantly lower than that of hospital cardiac arrest. Preventive interventions on children's accidents and the skills of pre-hospital staff on pediatric advanced life support (PALS) need to be urgently improved.</p>
الموضوعات
Child , Child, Preschool , Female , Humans , Infant , Infant, Newborn , Male , Advanced Cardiac Life Support , Education , Cardiopulmonary Resuscitation , Methods , Chi-Square Distribution , China , Epidemiology , Emergency Medical Services , Methods , Out-of-Hospital Cardiac Arrest , Epidemiology , Therapeutics , Pediatrics , Education , Retrospective Studies , Risk Factors , Survival Rate , Time Factors , Treatment Outcomeالملخص
<p><b>OBJECTIVE</b>To explore whether neutrophil-lymphocyte ratio (NLR) is an effective prognostic marker in gastric cancer.</p><p><b>METHODS</b>Clinical data of 775 patients with gastric cancer in the First Affiliated Hospital of Sun Yat-sen University from 1994 to 2006 were analyzed retrospectively. According to preoperative NLR, the patients were divided into the low NLR group (NLR≤3.79, n=652) and the high NLR group (NLR>3.79, n=123). The 5-year survival rates of two groups of different TNM stage, different surgical intervention were separately analyzed.</p><p><b>RESULTS</b>The 5-year survival rates in the low NLR group and high NLR group were 44.0% and 12.2% respectively (P<0.01). In different TNM stages: stage I (97.8% vs 33.3%), stage II (55.4% vs 32.0%), stage IIIA (30.2% vs 11.1%), stage IIIB (15.5% vs 8.3%), stage IV (10.7% vs 2.1%), and in different surgical intervention: D1 curative gastrectomy (93.3% 33.3%), D2 group (51.3% vs 20.4%), D3 group (42.4% vs 10.5%), D4 group (14.3% vs 2.0%), and in palliative operation group (8.3% vs 2.2%). There were significant differences of 5-year survival rate in TNM staging and surgical procedures between the high and low NLR groups (all P<0.05).</p><p><b>CONCLUSION</b>Preoperative NLR may be a prognostic marker in patients with gastric cancer.</p>
الموضوعات
Aged , Humans , Gastrectomy , Lymphocytes , Neoplasm Staging , Neutrophils , Prognosis , Retrospective Studies , Stomach Neoplasms , Diagnosis , Survival Rateالملخص
<p><b>OBJECTIVE</b>To investigate the clinicopathological characteristics between mucinous gastric cancer (MGC) and poorly differentiated gastric cancer(PDGC) and factors associated with prognosis.</p><p><b>METHODS</b>Medical records of 1016 consecutive patients with gastric cancer were retrospectively reviewed. Sixty-eight patients with MGC and 508 with PDGC were identified. Clinicopathologic characteristics and overall survival data were analyzed.</p><p><b>RESULTS</b>As compared to PDGC patients, patients with MGC were significantly older [(59.2±11.9) years vs. (54.1±13.2) years], had significantly more distant metastasis(36.8% vs. 23.8%), more peritoneal seeding(29.4% vs. 16.9%), and less radical resection(60.3% vs. 76.6%). There were no significant differences in 5-year survival rate between MGC and PDGC patients(29.4% vs. 35.5%). However, for tumors in the middle third of the stomach, the survival rate of MGC patients was lower than that of PDGC. Using a Cox proportional hazard ratio model, lymph node involvement and radical resection were independent prognostic factors for survival of MGC patients, while tumor invasion, lymph node involvement, and radical resection were associated with survival in patients with PDGC.</p><p><b>CONCLUSION</b>Although MGC and PDGC differ in age, frequencies of peritoneal seeding, distant metastasis, and rate of radical resection, overall survival is comparable.</p>
الموضوعات
Aged , Female , Humans , Male , Middle Aged , Prognosis , Retrospective Studies , Stomach Neoplasms , Classification , Pathologyالملخص
<p><b>OBJECTIVE</b>To investigate the clinical effect of surgery following systemic targeted therapy of tyrosine kinase inhibitors (TKIs) in patients with metastatic gastrointestinal stromal tumors (GIST).</p><p><b>METHODS</b>From June 2007 to December 2009, data of 15 consecutive patients with metastatic GIST treated with imatinib/sunitinib followed by surgery were retrospectively analyzed.</p><p><b>RESULTS</b>Disease responses to TKI treatment was categorized into controlled disease (including partial response and stable disease) (6, 40.0%), limited progression (4, 26.7%), and generalized progression (5, 33.3%), respectively. Surgeries were performed after mean 12 months following TKI therapies. Gross complete resection or optimal debulking with minimal residual disease were managed to performed in 8/10 patients with disease controlled and limited progression, while optimal debulking only achieved in 2/5 patients with generalized progression. Surgical morbidity was 20.0% (3/15). After operation, patients with disease controlled and limited progression had a median progression-free survival of 25.0 months and 2-year overall survival rate of 100%. In contrast, for patients with generalized progression, the median progression- free survival was 3 months (P<0.01), and median overall survival 10.5 months.</p><p><b>CONCLUSIONS</b>Patients with metastatic GIST who have controlled disease or limited progression to TKI therapy can benefit from surgical resection. Surgery should be selective in patients with generalized progression since surgery hardly improves survival in these patients.</p>
الموضوعات
Adult , Aged , Female , Humans , Male , Middle Aged , Benzamides , Disease-Free Survival , Gastrointestinal Stromal Tumors , Pathology , Therapeutics , Imatinib Mesylate , Indoles , Therapeutic Uses , Intraoperative Period , Piperazines , Therapeutic Uses , Protein Kinase Inhibitors , Therapeutic Uses , Pyrimidines , Therapeutic Uses , Pyrroles , Therapeutic Uses , Retrospective Studies , Survival Rate , Treatment Outcomeالملخص
<p><b>OBJECTIVE</b>To study the relationship between cystatin C and cerebral infarction and explore the role of cystatin C in the protection against cerebral infarction.</p><p><b>METHOD</b>Eighty-three patients with cerebral infarction and 71 randomly selected age- and gender-matched patients in the Department of Neurology (control group) were enrolled in this study. Fasting whole blood (3 ml) was obtained from the patients in both groups and the sera were separated to determine the levels of cystatin C using particle reinforced immunoturbidimetric assay.</p><p><b>RESULTS</b>The serum cystatin C level was significantly lower in the cerebral infarction group than in the control group (1.62-/+0.31 vs 2.23-/+0.22 mg/L, P<0.01).</p><p><b>CONCLUSIONS</b>Cystatin C is closely related to cerebral infarction probably as a protective factor against cerebral infarction.</p>
الموضوعات
Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Case-Control Studies , Cerebral Infarction , Blood , Metabolism , Cystatin C , Blood , Metabolismالملخص
<p><b>OBJECTIVE</b>To make multi-central clinical evaluation of the massage for supplementing qi and removing obstruction in the Governor Vessel for treatment of infantile diarrhea due to spleen deficiency.</p><p><b>METHODS</b>By using multi-central, randomized and controlled method, 275 cases were randomly divided into an observation group (n = 137) and a control group (n = 138). The observation group were treated by the massage for supplementing qi and removing obstruction in the Governor Vessel, and the control group by routine massage therapy in Tuina Science, a teaching material for college and school of TCM. After treatment for 7 days, their therapeutic effects were compared.</p><p><b>RESULTS</b>The cured rate was 83.2% in the observation group and 69.6% in the control group with a signifi cant difference between the two groups (P < 0.05), the former being better than the latter. The mean cured time was (3.22 +/- 1.04) days in the observation group and (4.20 +/- 1.11) days in the control group with a significant difference between the two groups (P < 0.05), the former being shorter than the latter.</p><p><b>CONCLUSION</b>The massage for supplementing qi and removing obstruction in the Governor Vessel has a definite therapeutic effect on infantile diarrhea due to spleen deficiency, with rapid effect.</p>
الموضوعات
Female , Humans , Infant , Male , Combined Modality Therapy , Diarrhea, Infantile , Therapeutics , Massage , Qi , Splenic Diseases , Therapeuticsالملخص
<p><b>OBJECTIVE</b>To observe the analgesic effect of ankle-three-needle on nerve root pain of prolapse of lumbar intervertebral disc.</p><p><b>METHODS</b>Three hundred and eighty cases were randomly divided into an ankle-three-needle group, a routine acupuncture group and a medication group. The ankle-three-needle group were treated with ankle-three-needle therapy, i. e. according to different prolapse segments, points Gentong No. 1, 2 and 3 were selected with lifting-kneading needle insertion method used and the needle was inserted along the skin; the routine acupuncture group were treated with acupuncture at Shenshu (BL 23), Qihaishu (BL 24) and Jiaji (EX-B 2) of the prolapse corresponding segment, and Ciliao (BL 32), etc. with uniform reinforcing-reducing manipulation; the medication group were treated with routine buttock intramuscular injection of aspirin-DL-lysine plus saline.</p><p><b>RESULTS</b>The time inducing analgesia was 6 min in the ankle-three-needle group, 27 min in the routine acupuncture group and 18 min in the medication group. The effect-lasting time was 24.48 h in the ankle-three-needle group, 8.93 h in the routine acupuncture group and 6.36 h in the medication group, with a significant difference as the ankle-three-needle group compared with both the routine acupuncture group and the medication group, but with no significant difference between the routine acupuncture group and the medication group. After treatment, there were very significant differences in change tendency of the analgesic score among the three groups at all the time points (P < 0.01). And there was very significant differences in the changing tendency of straight-leg raising test among the three groups at 0.5 h, 1 h, 24 h and 48 h (P < 0.001).</p><p><b>CONCLUSION</b>Ankle-three-needle has obvious therapeutic effect on nerve root pain induced by prolapse of lumbar intervertebral disc.</p>
الموضوعات
Adult , Aged , Female , Humans , Male , Middle Aged , Acupuncture Analgesia , Methods , Ankle , Intervertebral Disc Displacement , Therapeutics , Lumbar Vertebrae , Neuralgia , Therapeutics , Spinal Nerve Rootsالملخص
<p><b>OBJECTIVE</b>To search for an effective therapy for the nerve root pain caused by prolapse of lumbar intervertebral disc.</p><p><b>METHODS</b>One hundred and ninety-two cases were randomly divided into a Huaisanzhen group of 96 cases, a drug control group of 48 cases and an acupuncture control group of 48 cases. The Huaisanzhen group were treated by Huaisanzhen therapy, the drug control group by intramuscular injection of aspirin-DL-lysine and the acupuncture control group by routine acupuncture.</p><p><b>RESULTS</b>The time inducing analgesic effect was shorter, the effect-lasting time was longer, and the analgesic effect and the comprehensive therapeutic effect were better in the treatment group as compared with the two control groups with very significant differences (P < 0.01).</p><p><b>CONCLUSION</b>Huaisanzhen therapy has a better analgesic effect on the nerve root pain due to prolapse of lumbar intervertebral disc.</p>