According to the cultivation objectives of the plant-productive specialities, the teaching contents and methods, testing forms and experimental teaching of the course of General Microbiology have been re-formed. The reformation includes integrating, retrenching and updating the teaching contents, strengthening the fundamental knowledge, improving the classroom teaching methods and communicating in and after class in order to arouse the student’s interest and greatly spurs student’s initiative. The testing forms were also reformed to comprehensively evaluate the student’s ability of mastering and managing the knowledge. Through the reinforcement of the basic technical and scientific research training in the experiments, good teaching results have been achieved.

Objective To detect the changes of interleukin-18 (IL-18) in plasma of trauma patients and evaluate their value in early warning of organ dysfunction. Methods A prospective study was carried out in 54 trauma patients admitted in from March 2001 to September 2002, which were divided into low injury severity score(ISS) group (Group L-ISS) and high ISS group (Group H-ISS). ELISA was applied to measure the level of IL-18 of blood samples that were collected on arrival, at days 4, 7 and 14 following admission. In the meantime, IL-18 level of plasma samples from patients with systemic inflammatory response syndrome (SIRS), sepsis and multiorgan dysfunction syndrome (MODS) was retrospectively analyzed so as to calculate the critical value of IL-18 in predicting organ dysfunction. Results After trauma, IL-18 concentration of plasma reached peak at days 4 and 7, and decreased gradually at day 14, which was significantly related to SIRS, sepsis and MODS, respectively. The IL-18 level was high relatively in plasma from patients with organ dysfunction. The higher IL-18 level in plasma within seven days after trauma indicated the severer organ dysfunction. Conclusion IL-18 is sensitive in early warning of organ dysfunction after trauma.

Autoimmune Lymphoproliferative Syndrome ; diagnosis ; genetics ; immunology ; therapy ; Biomarkers ; blood ; Child, Preschool ; Humans ; Male ; Mutation ; Prednisolone ; administration & dosage ; therapeutic use ; Ultrasonography, Doppler, Color ; fas Receptor ; genetics

ObjectiveTo study central venous oxygen saturation (ScyO2) in controlled hemorrhagic shock rabbits resuscitation process as a transfusion trigger and traditional transfusion trigger of comparison.MethodsSelection New Zealand pure line of rabbit 32 only,simple randonly divided into 4 groups,groups A and B for the observation group,groups C and D as control group,groups of eight only.A,B,C,D four groups respectively by ScvO2 ≤70％,ScvO2 ≤75％,hemoglobin (Hb)≥8g/dl,blood loss for the whole blood volume≥30％ as transfusion trigger.From right femoral artery bloodletting 10 minute inside,made the MAP to about (40 ± 5 )mmHg,and maintained the blood pressure 60 minutes,established controlled hemorrhagic shock rabbits of animal model.And then started to resuscitate,with colloid and crystalloid infusion according to the proportion 1∶2,infusion rate of about 10 ～ 15ml/( kg · h),according to the blood pressure and heart rate,and proper adjustment according to the different requirements of each group conducted a blood transfusion.Monitoring based value,shock,shock treatment 30 minutes,60 minutes,120 minutes,180 minutes all time points,and various indexes of blood loss,blood transfusions,crystalloid and colloid fluid volume and so on.ResultsIn shock treatment observation group A late blood pressure,pH,BE,HCO3-,O2ER etc compared with the other three groups had obvious statistical differences ( P ＜ 0.05 ),group B with C and D two groups at the same time points each monitoring were no significant differences ( P ＞0.05 ).The volume of transfusion group C was most,compared with the other three groups were significant difference ( P ＜ 0.05 ),group D of blood transfusions than A,B two groups (P ＜ 0.05 ),groups A and B infused colloid fluid,crystal fluid volume than groups C and D ( P ＜ 0.05 ),each group blood lossed without significant difference.ConclusionScvO2 for controlled hemorrhagic shock rabbit resuscitation monitoring can guide controlled hemorrhagic shock rabbit of blood transfusions,according to ScvO2 ≤75％ transfusion with traditional according to Hb or blood loss transfusion trigger comparison,can achieve the same resuscitation effect,and can more accurately and individualized guide transfusion,reduce unnecessary blood transfusions,save resources.

In order to establish a method for the determination of the sterols of the oil in the freeze-dried acai (Euterpe oleracea Mart.) and to evaluate its antioxidant activities, a saponification/extraction procedure and high performance liquid chromatography (HPLC) analysis method were developed and validated for the analysis of phytosterols in PEE (Petroleum ether extract). Separation was achieved on a Purosper STAR LP C18 column with a binary, gradient solvent system of acetonitrile and isopropanol. Evaporative light scattering detection (ELSD) was used to quantify β-sitosterol and the total sterols. Peak identification was verified by retention times and spikes with external standards. Standard curves were constructed (r = 0.999 2) to allow for sample quantification. Recovery of the saponification and extraction was demonstrated via analysis of spiked samples. The highest content of total sterols is β-sitosterol. The antioxidant activities of the extracts were evaluated using the total oxyradical scavenging capacity assay (TOSC assay). The result showed that the PEE exhibited significant antioxidant properties, sample concentration and the antioxidant capacity had a certain relevance.
Antioxidants ; analysis ; Arecaceae ; chemistry ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; analysis ; Phytosterols ; analysis ; Sitosterols ; analysis

Objective To explore the methods and clinical value of transrectal ultrasound (TRUS) in detecting rectal gastrointestinal stromal tumor(GIST) with head scanning probe.Methods A total of 12 patients had the ultrasonic examination through the rectum with the head scanning probe.Preoperative ultrasonic findings were compared with the pathological results.Results Of the 12 patients,the patients were divided into three groups,including 3 cases with low-degree severity,6 cases with moderate-degree severity and 6 cases with high-degree severity.The lymph node metastasis was not found near intestines.Rectal GIST appeared as a hypoechoic mass with clear limit、regular form and expanded growth under TRUS.The CDFI showed abundant flow in the tumor and TRUS had an overall accuracy rate of 75.0%(9/12)in the diagnosis of rectal GIST.The accuracy of TRUS in the staging diagnosis of rectal GIST was 83.3%(10/12).Conclusion The TRUS with the head scanning probe is of great value for pre-operative diagnosis and staging of rectal GIST.Rectal water window and felicitous check-up technique can enhance the accuracy of TRUS.

Adult ; Chondroma ; pathology ; surgery ; Esophageal Diseases ; pathology ; surgery ; Esophageal Neoplasms ; pathology ; surgery ; Hamartoma ; pathology ; surgery ; Humans ; Male

Objective To observe the effects of vaporized perfluorocarbon (PFC) combined with exogenous pulmonary surfactant (PS) inhalation on rabbit models of acute lung injury (ALI).Methods Thirty-two New Zealand rabbits were randomly divided into four groups: ALI group, combination treatment group, PFC group, and PS group (each groupn = 8 rabbits). The rabbit model of ALI was induced by the whole lung normal saline lavage. After modeling, in the combined group, 3 mL/kg vaporized perfluorooctyl bromide/dipalmitoylphosphatidylcholine (PFOB/DPPC) emulsion was inhaled, the rabbits in PFC and PS groups were treated with vaporized PFOB emulsion and vaporized DPPC emulsion 3 mL/kg inhalation respectively, and in the ALI group was given the same amount of vaporized normal saline inhalation. In each group, before modeling for 30 minutes (basic value), after modeling for 1 hour and after treatment at 0 minute, 30 minutes, 2 hours, 4 hours, the respiratory rate (RR), oxygenation index (OI), dynamic lung compliance (Cdyn) were observed, and the lung coefficient (LI) and lung permeability index (LPI) were calculated; the levels of serum tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) were measured by double antibody sandwich enzyme-linked immunosorbent assay (ELISA); the lung tissue was collected and the lung pathological changes were observed under macroscopic and microscopic observation.Results Aftermodeling, the levels of OI, Cdyn were quickly lowered, RR became significantly elevated, and there were obvious edema, hemorrhage and exudation in lung tissue of ALI group. The levels of OI were significantly increased in combined group and PFC group compared with the level in ALI group after treatment at 0 minute initially [mmHg (1 mmHg = 0.133 kPa): 231.0±16.7, 221.4±19.0 vs. 189.5±21.0, both P < 0.05], while the level of OI in PS group was increased significantly until 4 hours after treatment, being higher than that in ALI group (mmHg: 297.0±20.7 vs. 243.3±36.7,P < 0.05); RR was decreased significantly in combined treatment group at 30 minutes after treatment compared with that in ALI group (bpm: 151.1±13.3 vs. 178.5±32.0,P < 0.05), while the RR in PFC group and PS group were not increased significantly until 4 hours after treatment being higher than that in ALI group (bpm: 129.3±14.3, 133.1±13.9 vs. 157.5±32.5, bothP < 0.05). Compared to ALI group, the three treatment groups resulted in significant improvement in Cdyn right at 0 minute (mL/cmH2O: 1.64±0.10, 1.45±0.10, 1.43±0.09 vs. 0.57±0.05, allP < 0.05), their LPI, LI and inflammatory cytokines were significantly decreased [LPI (×10-5): 4.21±0.42, 4.76±0.55, 4.87±0.49 vs. 5.56±0.52, LI: 8.04±0.58, 8.90±0.88, 9.22±0.71 vs. 10.85±0.73, TNF-α (ng/L): 50.05±4.91, 56.18±5.54, 63.60±5.96 vs. 73.60±5.27, IL-1β (ng/L): 34.27±4.55, 40.29±5.03, 48.13±6.38 vs. 54.71±4.26, allP<0.05], and pulmonary edema, congestion and inflammatory cell infiltration were obviously ameliorated (pathological scores: 3.74±0.58, 4.50±0.75, 5.29±0.72 vs. 6.13±0.72, P < 0.05). Cdyn levels were increased significantly in combined treatment group at 0 minute, 30 minutes, 4 hours after treatment compared with thosein PFC and PS group, but there were no significant differences between PFC and PS group. Levels of LI, LPI, inflammatory factors and pathological scores were decreased significantly in combined treatment group compared with those in PFC and PS group, the degrees of improvement of inflammatory factors and pathological scores in PFC group were more obvious than those in PS group (allP < 0.05).Conclusions PFOB combined with DPPC inhalation can provide greater oxygen delivery, reduce the pro-inflammatory cytokines, supplement PS and influence its distribution on the surface of lung, which might lead to a marked and sustained improvement in oxygenation, pulmonary function and amelioration of lung edema and inflammatory reaction in saline lavage induced lung injury of rabbits.

Objective To explore the clinic utility of Hb A level in neonatal cord blood screening for β‐thalassemia .Methods A total of 1 599 neonatal cord specimens whose parents were carriers of β‐thalassemia prenatal diagnosised by routine molecular genet‐ic were collected by cordocentesis .These samples were analyzed by the capillary electrophoresis system (Sebia) .Results Among 1 599 fetuses ,186 were diagnosed as β‐thalassemia carriers ,68 were β‐thalasseima intermedia/major .ROC analysis demonstrated that the optimal cutoff value for identifying β‐thalassemia carrier from the Hb A level was 5 .15% (sensitivity = 83 .9% , specificity = 82 .3% ) ,and that was 3 .2% for β‐thalasseima intermedia/major (sensitivity = 100 .0% ,specificity = 99 .4% ) .Conclu‐sion The Hb A level of cord blood was an effective marker to screen the β‐thalassemia for fetuses and is therefore well‐suited for clinical diagnostic use .

Objective:Explore the dendritic cells to soak gallbladder carcinoma tissue,to explain the relation dendritic cells and tumor immunity.Methods:Adopt immune histochmistry S-P method.Results:The extent of dendritic cells to soak gallbladder carcinoma tissue is not relate to age,gender and types of pathhistology but negative contact with degree of pathological differentiation (P