OBJECTIVE To search for the reasons of unqualified level of bacteria in exit-entrance fluid of hemodialyzer and draft the measures of adjustment to meet the evaluation criteria for exit-entrance fluid of hemodialyzer.METHODS According to MOH′s Hospital Infection Management Standards to detect level and species of bacteria.RESULTS The average numbers of bacteria in exit-entrance fluid of hemodialyzer decreased from 2152.95?826.45 CFU/ml before adjustment to 579?541.04 CFU/ml after adjustment,checking with chi square test,the entrance fluid of hemodialyzer was ?2 =15.92,P

Microskin autografts were covered with artificial collagen skin, pig skin and cadaver skin in the rats. The results showed that the adhesion to wound and hemostasis of artificial collagen skin was better than pig or cadaver skins. The histological section of healing wound with artificial collagen skin showed that there were revascularization and fibroblast infiltration. The results suggest that artificial collagen skin may be used instead of allograft.

Objective To summarize the clinical experience of intractable epistaxis under nasal endoscope in the treatment of elderly people .Methods 312 cases of endoscope of intractable epistaxis patients were retrospectively analyzed.Results Nasal septum and olfactory corresponding head of middle turbinate bleeding site was mainly the upper part of the nasal cavity and the split-plot,back-end middle turbinate at the back of the nose and nasal were fol-lowed,as well as inferior turbinate and the rear end of inferior nasal meatus ,the Littell nasal septum of the front nose were bleeding less .After nasal endoscopic radio hemostatic therapy or local packing treatment with expansive sponge , 310 cases were cured,2 cases were invalid.The total efficiency was up to 99.4%.During the following 3 months,there was no recurrence .Conclusion For the elderly intractable epistaxis hemostatic therapy ,under nasal endoscope oper-ation method,radio hemostatic therapy or local packing treatment with expansive sponge is simple and effective ,which is worthy of popularization and application .

AIM: To investigate the influences of native and oxidized lipoprotein(a) on human arterial smooth muscle cell (SMC) proliferation, change of intracellular free calcium concentration ([Ca 2+ ] i) and the protective effect of sodium ferulate(SF). METHODS: Lp(a) was oxidized by Cu 2+ and the extent of oxidation was assessed by the MDA content.Human SMC were incubated in culture media with SF for 12 h, then exposed to Lp(a) and oxidized-Lp(a), respectively. MTT colorimetry and flow cytometry were used to evaluated the proliferation of SMC and flurorescent indicator Fura-2/AM was used to determined [Ca 2+ ] i. RESULTS: ox-Lp(a) significantly promoted proliferation of SMC and increased[Ca 2+ ] i compared with Lp(a). SF(40,80 mg/L) remarkedly inhibited SMC proliferation and decreased the rising of [Ca 2+ ] i induced by ox-Lp(a) in a dose-dependent manner, but no effect on SMC proliferation and the increase in [Ca 2+ ] i induced by Lp(a).CONCLUSION: ox-Lp(a) induces the strong growth-promoting effect in SMC through increasing in [Ca 2+ ] i, which might be one of the cellular mechanisms responsible for the higher atherogenic potential of ox-Lp(a) compared with Lp(a), and this process can be prevented by inhibiting of oxidation by SF.

Objective To exploration the value of color Doppler ultrasounographhy(CDU) in the diagnosis of breast mass. Methods The clinical data of 600 cases of breast tumor treated in our hospital in recent 3 years were retrospectively analysed, all patients were examined with CDU before operation. Results CDU found breast small tumor in 163 cases(27.2%) which couldn’t detected by hands, found multiple masses in 307 cases(51.2%);and suspected malignancy in 75 cases,of the 75 cases,malignancies were comfirmed by pathological examination in 72 cases(96.0%).Conclusions CDU can find small breast mass which can not be detected by hands,and can determin the mass is a tumor or not.CDU can also find early stage of breast cancer.CDU is non-traumatic,rasily to be perfomed and repeated.CDU can improve the preoperative diagnosis rate of breast mass.

In this study collagen was applied locally for the treatment of burn wound in the rat. Twenty rats weighing 18-22g were made into 7% [1 degree burn model and divided into two groups: collagen group and control group. After burn, collagen (0.4ml, once daily) was smeared on the rat wound in the treatment group, whereas saline (0.4ml, once daily) in the control group. It was found that collagen can significantly accelerate burn wound healing by comparing the wound healing time and histological changes.

Hepatocellular carcinoma(HCC)is one of the most common malignancies worldwide.Due to the difficulty of diagnosis in the early stage of HCC, most HCCs are diagnosed in intermediate-advanced stage.Moreover, the high invasion, metastasis and recurrence rate of HCC result in the high mortality of HCC.MicroRNAs(miRNAs) are a class of highly conserved, endogenous, small, non-coding ,single stranded RNA with the length of 22 nucleotides.There are plentiful of miRNAs in liver.MiRNAs not only can regulate the growth and development of liver, but also are closely related to the formation of HCC.In the process of HCC formation, miRNAs could function as oncogenes or tumor suppressor genes to regulate multiple biological processes related to HCC, including cell differentiation,proliferation,tumorigenesis,angiogenesis,invasion,and metastasis.With the intensive study of molecular mechanisms of miRNAs in the process of HCC formation, increasingly studies have revealed that miRNAs could become sensitive biomarkers and effective therapeutic targets for HCC.

BACKGROUND: In many studies, rats were commonly used as models of retrorsine-induced hepatic injury. Some reports have confirmed that retrorsine cannot inhibit proliferation of mouse hepatic cells. Other reports have shown that retrorsine has inhibitory effects on proliferation of mouse hepatic cells. OBJECTIVE: To study the liver regeneration after hepatic injury by creating mouse models treated with partial hepatectomy combination with retrorsine. METHODS: A total of 40 C57BL/6J mice were equally and randomly assigned to 2 groups. In the partial hepatectomy combined with retrorsine group, intraperitoneal injection of retrorsine 70 mg/kg was conducted, twice, within an interval of 2 weeks. Four weeks later, 2/3 hepatectomy was performed. In the partial hepatectomy group, intraperitoneal injection of saline 70 mg/kg was performed, twice, with an interval of 2 weeks. Four weeks later, 2/3 hepatectomy was performed. At 14 days after partial hepatectomy, the restoration of the livers was observed. The liver cell injury was observed at 3, 7 days with hematoxylin-eosin staining. The hepatocyte proliferation was observed at 3 days with BrdU staining. Oval cell proliferation was observed at 3, 7and 14 days with CK19 and C-kit antibody immunohistochemistry.RESULTS AND CONCLUSION: In the partial hepatectomy group, the damaged liver nearly restored to normal at 14 days after partial hepatectomy, and the result was contrary to partial hepatectomy combined with retrorsine group. Hematoxylin-eosin staining demonstrated that significant degeneration changes in hepatic cells in the partial hepatectomy combined with retrorsine group. BrdU staining showed that hepatocyte proliferation at day 3 was significantly determined in the partial hepatectomy group, but few in the partial hepatectomy combined with retrorsine group. CK19 and C-kit immunohistochemistry demonstrated that visible oval cell proliferation was seen in mice of partial hepatectomy combined with retrorsine group. First of all, hepatic oval cells appeared in portal area and differentiated into hepatic cells and bile duct cells, and then grew into the hepatic lobule gradually. These indicated that retrorsine can obviously inhibit hepatocyte regeneration after liver injury in mice. The model of mice treated with retrorsine and partial hepatectomy could induce oval cell proliferation.

To investigate the CT appearances in early stage of clustering lung paragonimiasis,9 cases of two clustering lung paragonimiasis caused by eating raw stone-crab and laboratory examination were included in the study.Eight cases consulted by doctors in the hospital and their appearances were retrospectively analyzed.There were pleural effusion of varying degree (n=8) and random distribution sub-pleural pulmonary infiltrative lesions (n=7).The accompany appearances of the latter had lunar halo sign,characteristic tunnel sign (n=1) and peri-bronchitis (n=1).If CT detects pulmonary infiltrative lesions of random distribution within sub-pleura or tunnel sign,combining with the history of eating raw stone crabs and other freshwater fishes,with the rise of eosinophilic granulocytes in peripheral blood,the diagnosis of paragonimiasis should be suggested.