Objective To investigate the effect and safety of thoracic drainage by central venous catheter in critical patients with pleural effusion. Methods A prospective study was carried out,in which 46 critical patients with pleural effusion admitted to department of critical care medicine were included,and according to the types of their primary diseases to make matched pairs,and they were divided into two groups:conventional drainage control group and central venous catheter drainage observation group(each 23 cases). The drainage effect and complications were compared between the two groups,acute physiology and chronic health evaluation Ⅱ(APACHEⅡ)score, quantitative pleural effusion and the counts of white blood cells(WBC)and of platelets(PLT),the levels of prothrombin time(PT),procalcitonin(PCT)and C-reactive protein(CRP),etc. were measured on the baseline and 24 hours after the operation. Results There were no significant differences in the APACHEⅡ score,quantitative pleural effusion,amount and duration of drainage,as well as the levels of WBC,PLT,PT and PCT between group control and observation(all P>0.05). The post-drainage CRP(μg/L)level in group observation was much lower than that in group control(77.26±67.20 vs. 106.13±66.23,P<0.01). There was a trend that the incidence of complication in group control was higher than that in group observation(26.1%vs. 4.3%),but the difference was not statistically significant(P>0.05). Conclusions In the comparison between the conventional drainage and thoracic drainage with central venous catheter,the therapeutic effects for treatment of critical patients with pleural effusion were similar, but the stress was milder and the incidence of complications was lower in the latter group. Therefore,the thoracic drainage with central venous catheter is a safe,effective and alternative method to substitute the conventional drainage for critical patients with pleural effusion.

Objective To investigate the effect of ulinastatin on acute lung injury in rats with severe heatstroke.Methods Fourty-eight rats were randomly (random number) assigned into control group (HS group,n =12),low dose Ulinastatin group (LUTI group,n =12),high dose Ulinastatin group (HUTI group,n =12) and non-thermal group (Sham group,n =12).Rats were prepared with pre-warm chamber to initiate heatstroke.The change of rectum temperature (Tc),heat-rate (HR) and mean arterial pressure (MAP) under heat-stress were recorded.The time-point of heatstroke onset and Tc ＞42 ℃ was observed.Arterial blood samples were draw at 0 min,20 min,40 min and 60 min for testing partial pressure of oxygen (PaO2) and partial pressure of carbon dioxide (PaCO2).Bronchoalveolar lavage fluid (BALF) were collected at 60 min,and the concentrations of tumor necrosis factor-α (TNF-α),interleukin-1β (IL-l β) and interleukin-6 (IL-6) in BALF were measured with enzyme linked immunosorbent assay kit.Lung tissues were harvested for observing pathological change and measuring the expression of iNOS with Western blot test.Results Compared with HS group,the time-point of Tc ＞ 42℃ (P =0.00),severe heat-stroke (P =0.00) and the median of survival time (P =0.00) in LUTI and HUTI groups were significantly increased.At 60min after heat-stress,the level of PaO2 in HS group was much lower than those in other groups (P =0.00).But there were no differences between LUTI and HUTI groups (P =0.91).The value of PaCO2 in HS group was much higher than those in other groups (P =0.00).And the differences between LUTI and HUTI groups were no significant (P =0.79).The concentrations of TNF-α,IL-1β and IL-6 in HS group was the highest in four groups (P =0.00,P =0.04 and P =0.04),followed by LUTI,HUTI and Sham group.The concentrations of proinflammatory cytokine in LUTI were higher than those in HUTI group (P =0.02,P =0.00,P =0.00).Compared with HS group,the pathological injuries were alleviated in LUTI and HUTI group (P =0.00).The expression of iNOS in lung tissue of HS group was strengthened than LUTI and HUTI group (P =0.00),and there was a significant difference between LUTI and HUTI group (P =0.03).Conclusion Ulinastatin improves respiratory dysfunction and the prognosis of severe heatstroke rats through reducing the inflammatory and oxidative injury in lung tissue.

Objective To evaluate the methods and efficacy of microsurgical treatment for the premalignant and malignant lesions of the conjunctiva. Methods Forty-seven patients witn premalignant and malignant lesions of the conjuncitva were managed by microsurgical, these patients include 12 melanoma, 26 squamous cell carcinoma, 6 Bowen’ diseases, 3 primary acquired melanosis. The surgical method differs with limbal tumors, extralimbal tumors, and primary acquired melanosis. Results In all 47 patients, the tumor was completely removed in in one procedure. After follow-up for 4~60 months(mean 17 months), these were no tumor recurrence. Conclusion It is effective methods that premalignant and malignant lesions of the conjunctiva are managed by microsurgical resection, alcohol application, and supplemental cryotherapy. Careful propeirativa clinical evaluation of patient with a conjunctiva neoplasm is important in making the correct diagnosis and planning the surgical approach.

ObjectiveTo observe the effect of Xuebijing injection pretreatment on systemic inflammatory response induced by severe heat-stroke, and to investigate the mechanism of alleviation of intestinal injury in rats. Methods Thirty-six healthy adult male Wistar rats with grade SPF were randomly assigned into three groups with randomized number method, namely sham group, severe heat-stroke model group, and Xuebijing pretreatment group (XBJ group), with 12 rats in each group. The animals were placed in a pre-warm chamber [temperature (40±2)℃, humidity (65±5)%] in order to induce typical heat-stroke. The duration of heat-stress was 60 minutes, while the animals in sham group were exposed to ambient temperature of 25℃. Arterial blood samples were collected at the beginning and the end of heat-stress, the concentrations of tumor necrosis factor-α(TNF-α), interleukins (IL-1β, IL-6), and lipopolysaccharide (LPS) in peripheral blood were determined by enzyme linked immunosorbent assay (ELISA). The intestinal tissues were harvested after heat-stress, and the pathological changes in intestine tissues were observed after hematoxylin-eosin (HE) staining and under optical microscope. The pathological injury scores were calculated. Immunohistochemistry was performed to determine inducible nitric oxide synthase (iNOS) expression in intestinal tissue. Apoptosis was determined by terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) staining. Western Blot was used to measure the tight junction protein occludin expression.Results The concentrations of TNF-α, IL-1β, IL-6 and LPS in blood of the rats after heat-stress in model group were significantly higher than those of sham group [TNF-α (μg/L): 443.00±110.10 vs. 98.36±44.61, IL-1β (μg/L): 436.37±163.64 vs. 64.24±16.15, IL-6 (μg/L): 342.70±92.42 vs. 54.40±13.22, LPS (μg/L): 0.68±0.22 vs. 0.09±0.02, allP< 0.01], but the levels of these parameters in XBJ group were significantly lower than those of model group [TNF-α (μg/L):340.45±68.57 vs. 443.00±110.10, IL-1β (μg/L): 191.33±82.78 vs. 436.37±163.64, IL-6 (μg/L): 192.21±37.89 vs. 342.70±92.42, LPS (μg/L): 0.43±0.17 vs. 0.68±0.22, allP< 0.01]. Infiltration of inflammatory cells, necrosis and hemorrhage in intestinal mucosa were found in the intestine of heat-stroke animals in model group. The pathological lesions in XBJ group were milder than those of model group, with a decreased pathological injury score compared with model group (2.10±1.15 vs. 3.20±0.67,P< 0.01). The expression of iNOS and apoptosis of cells in intestinal tissue in model group were increased compared with that of sham group, but they were significantly less marked in XBJ group compared with model group [iNOS (adjustedA value): 0.32±0.15 vs. 0.74±0.17, apoptotic index: 0.23±0.08 vs. 0.56±0.07, bothP< 0.01]. The order of expression for occludin protein from high to low was sham group, XBJ group and model group (A value was 0.96±0.25, 0.62±0.20, 0.33±0.11, respectively). Furthermore, there was significant difference in the expression of occludin protein between model group and both XBJ group and sham group (bothP<0.01).Conclusions Xuebijing injection alleviates inflammation and endotoxemia produced by severe heat-stroke in rats. The mechanism may be related to amelioration of oxidative injury, apoptosis, and dysfunction of tight junction protein occludin expression.

AIM To study the influence of ginkgo biloba exocarp polysaccharides(GBEP) on p53 gene expression and telomerase activity of human gastriccancer SGC 7901 cells in vitro . METHODS The p53 gene expression level of human gastriccancer SGC 7901 cells were measured by immunohistochemistry ABC. The telomerase activity of human gastriccancer SGC 7901 cells were measured by TRAP ELISA. RESULTS GBEP(80～160 mg?L -1 ,48 h) inhibited the expression of mutated type p53 genes and telomerase activity of human gastriccancer SGC 7901 cells. CONCLUSION The action mechanism of GBEP that inhibited the proliferation of SGC 7901 cells may relate to its down regulation effect on the expression of p53 genes and telomerase activity of human gastriccancer SGC 7901 cells.

OBJECTIVE: To observe the clinical efficacy of Ginkgo biloba exocarp polysaccharides (GBEP) capsule preparation in treating upper digestive tract malignant tumors of middle and late stage. METHODS: Eighty-six patients of the upper digestive tract malignant tumors were treated with GBEP capsule preparation taken orally. The clinical symptoms and the qualities of life of the patients with single GBEP and combined with operation, radiotherapy or intervention chemotherapy were observed. The tumor size was measured by electronic gastroscope before and after treatment with single GBEP. Objective response rate (RR) of the tumor was calculated. The survival period of patient was observed. The changes of blood routine examination in the patients treated with radiotherapy were observed. RESULTS: GBEP preparation could markedly improve the patients'clinical symptoms. Karnofsky scoring of the patients markedly increased after treatment. There were 2 CR (complete response, 6.3%), 22 PR (partial response, 68.8%)and 5 SD (stable disease, 15.6%) of 32 cases with single GBEP preparation. The survival periods of the 32 cases were markedly prolonged. The preparation could relieve the inhibited hematopietic function and the weight loss due to radiotherapy. CONCLUSION: GBEP capsule preparation has some definite therapeutic effects on upper digestive tract malignant tumors of middle and late stage.

Objective To evaluate the effectiveness and safety of minimal incision laparotomy assisted endoscopic resection for polyps in small intestine in patients with Peutz-Jeghers syndrome. Methods The clinical data of patients with Peutz-Jeghers syndrome, who underwent minimal incision laparotomy assisted endoscopic resection for polyps in small intestine, were retrospectively studied. The size and number of the endoscopically rosected polyps, and the procedure related complications were documented. Results A total of 812 polyps in small-bowel were resected in 8 patients, in which 384 were smaller than 10mm, 356 with diameter ranging from 11 mm to 30mm, and 72 were larger than 30mm in diameter. Procedure related complications included intestinal dysfunction in 1 patient and abdominal pain in another. No bleeding with a fall in Hb or other severe complications were observed. Conclusion Minimal incision laparotomy assisted endoscopic resectio is a safe and reliable procedure for the treatment of mid-small bowel polyps in patients with Peutz-Jeghers syndrome. It revolutionizes the therapeutic options for polyps in the region of the mid-small bowel and limits the indications for primary surgical management.

Background and purpose:Currently, subjective questionaire is the most frequently used methods to evaluate swallowing dysfunctions after radiotherapy in nasopharyngeal carcinoma patients, while lacking of effective objective examinations. This study aimed to explore effective methods to evaluate swallowing dysfunctions after radiotherapy in nasopharyngeal carcinoma patients, and gain knowledge of the incidence and severity of swallowing dysfunctions. Methods: From Oct. 2013 to Dec. 2013, 128 consecutive outpatients with previously treated nasopharyngeal carcinoma received esophageal barium lfuoroscopy examination at there regularly follow-ups to evaluate swallowing function. Among these patients, 89 were primary treated with intensity modulated radiation therapy (IMRT) and 39 with conventional radiotherapy (CRT). In this study, each patient received esophageal barium lfuoroscopy examination for 3 times with thin, thick and pasty barium and were dynamically observed using X-ray fluoroscopy from front and lateral direction. Swallowing dysfunctions were defined as follows:①The bolus could not be swallowed and blocked in the mouth;②The dilute barium diverted to the glottis or trachea;③Residual barium delayed in the pyriform sinus and vallecula;④The movement of the hyoid bone or epiglottis were restricted;⑤Bolus prolong through the pharynx;⑥Barium slowed down when went though the esophageal entrance. Results:Of the 128 patients, incidence of dysphagia was 60.2%for the entire cohort, 52.8%for IMRT group and 76.9%for CRT group. Incidence of dysphagia for IMRT group was signiifcantly lower than CRT group (P=0.018). Dysphagia incidence within 1 year, 1 to 2 years and more than 2 years after RT were 63.1%, 33.3%and 69.0%, respectively (P=0.019). Conclusion:There was a high incidence of swallowing dysfunction for the nasopharyngeal carcinoma patients treated with radiotherapy and dysphagia incidence decreased when treated with IMRT. Esophageal barium lfuoroscopy examination is objective method to evaluate the incidence and severity of the swallowing dysfunction.

Objective To investigate the effects of magnesium metabolism and other positive ions in pathogenesis of essential hypertension(EH) patients with insulin resistance(IR). Methods The levels of Na+, K+, Ca2+, Mg2+ in erythrocyte and 24-hour urine samples were observed in 47 EH patients and in 30 subjects with normal blood pres sure. Insulin sensitivity index was used to evaluate the insulin sensitivity. Results In EH patients, the levels of K+ and Mg2+ in erythrocyte declined, but the levels of Na+ and Ca2+ in erythrocyte increased, and the 24-hour urinary excretion of Mg2+ reduced as compared to the subjects with normal blood pressure (P ＜0. 05). The levels of K+ and Mg2+ in erythrocyte of EH patients positively correlated with insulin sensitivity index, and the Mg2+ level in erythro cyte positively correlated with 24-hour urinary excretion of Ca2+ and Mg2+ , and the K+ level in erythrocyte. Conclu sion Abnormality of magnesium metabolism in EH patients may be the linking factor for hypertension and insulin re sistance, and may relate to inadequate intake of magnesium. Calcium and potassium may be involved in the occur rence of insulin resistance through affecting magnesium metabolism.

Objective To investigate the effect ofulinastatin on severe heat-stroke with acute lung injury induced by severe heat stroke.Methods Thirty severe heat stroke patients were divided into conventional group (n=15) and ulinastatin group (n=15) randomly,with another 80 healthy adults serving as controls.The baseline data such as age,gender,onset period and APACHE Ⅱ scores were recorded and compared between the two groups on admission.Peripheral leucocyte counts,oxygenation index and Murray scores were determined on the 1st,3rd and 5th day.The concentration of inflammatory mediators in bronchoalveolar lavage fluid (BALF) and alveolar macrophage supernatant were detected by enzyme-linked immunosorbent assay (ELISA).Western blotting and real-time PCR were used to measure expression of triggering receptor-1 on myeloid cells (TREM-1) on alveolar macrophages.Furthermore,comparison was made in terms of the ventilation period,ICU stay time and mortality in 28 days between the two groups.Results No differences were found in age,gender,onset period and APACHE Ⅱ scores between the two groups (P＞0.05).Compared with the conventional group,peripheral leucocyte counts and Murray scores in the ulinastatin group significantly decreased on the 3rd and 5th day (P＜0.05,P＜0.01).But oxygenation index was higher in the ulinastatin group than in the conventional group (P＜0.05).The concentration of TNF-α and IL-6 in BALF was lower in the ulinastatin group than in the conventional group (on the 3rd day:P＜0.05,P＜0.01;on the 5th day:P＜0.01,P＜0.01).The concentration of TNF-α and IL-6 in alveolar macrophage supernatant was lower in the ulinastatin group than in the conventional group (on the 3rd day:-P＜0.05,P＜0.01;on the 5th day:P＜0.01,P＜0.05).The expression of TREM-1 protein on alveolar macrophages were lower in the ulinastatin group than in the conventional group (on the 3rd day P＜0.01;on the 5rd day P＜0.05).TREM-1 mRNA was lower in the ulinastatin group than in the conventional group (on the 3rd day:P＜0.05;on the 5th day:P＜0.05).Eventually,the treatment of ulinastatin shorten ventilation period and ICU stay time (P＜0.01,P＜0.05).Nonetheless,it failed to show any improvement in terms of the mortality during 28 days (P＞0.05).Conclusion Our study exhibited that ulinastatin had good effect on the heat stroke patients with acute lung injury and it helped reduce the inflammatory reaction of pulmonary tissues.The underlying mechanism of these effects might lie in its ability to reduce heat stroke-induced inflammatory secretion and expression of TREM-1 on alveolar macrophage.