Objective To explore the influence of ozone therapy on high-sensitivity C-reactive protein (hs-CRP) and matrix metalloproteinases-3 (MMP-3) in synovial fluid of patients with knee osteoarthritis,and to investigate the possible mechanism.Methods Sixty-two patients with knee osteoarthritis were divided into observation group and control group by random digits table method with 31 cases each.The patients of observation group were treated with ozone,while the patients of control group were treated with hyaluronic acid once a week for 5 weeks.The efficacy was evaluated and the level of hs-CRP and MMP-3 in synovial fluid were detected before and after treatment.Results The total effective rate in observation group was 100.00％ (31/31),significantly higher than that in control group [87.10％ (27/31)],and there was significant difference (x2 =4.28,P ＜ 0.05).After treatment,the level of hs-CRP and MMP-3 in observation group was (6.68 ±2.15) mg/L,(69.84 ± 16.97) μ g/L,significantly lower than that in control group [(8.72 ± 2.39) mg/L,(85.43 ± 19.52) tμ g/L],and there was significant difference (t =3.53,3.36,P ＜ 0.01).Conclusion There is significant effect of ozone therapy of patients with knee osteoarthritis,its mechanism may be reducing the level of MMP-3 and inhibiting inflammatory reaction.

OBJECTIVE To analyze the correlation factors and preventive measures of lower respiratory tract infection after general anesthesia with laryngeal mask airway.METHODS In surgery 158 cases of general anesthesia with laryngeal mask ventilation in gynecology and orthopedic wards were analyzed retrospectively.RESULTS Forty-three cases were found in hospitals with lower respiratory tract infection,accounting for 83% of the total lower respiratory tract infection in the wards at the same period.CONCLUSIONS The anesthesia way,the age,the operation time,whether gastric tube,the abuse of antibiotics and whether the anesthesia equipments strictly disinfected and managed may be the important factors which can cause the lower respiratory tract infection.

Background and Objective:Lung adenocarcinoma is,at present,the most common malignancy in the world and its overall 5-year survival rate is disappointing.Because most of the patients are diagnosed at advanced stage,early diagnosis may improve the prognosis of patients with lung adenocarcinoma.Surface-Enhanced Laser Desorption and Ionization Mass Spectrometry(SELDI) is one of the currently used techniques to identify biomarkers for cancers.This study explored the application of serum SELDI proteomic patterns to distinguish lung adenocarcinoma patients from healthy individuals.Methods:Serum samples from 71 lung adenocarcinoma patients,71 healthy volunteers with matched gender,age and history of smoking were analyzed using WCX2 ProteinChip to select potential biomarkers.Proteomic spectra were generated by mass spectrometry.Results:Five highly expressed potential biomarkers were identified with the relative molecular weights of 4047.79?1.60,4203.99?1.91,4959.81?2.13,5329.30?2.55 and 7760.12?4.11.The sensitivity for diagnosing lung adenocarcinoma was 90.14%,78.87%,50.70%,57.75%,73.24%;and specificity was 97.18%,92.96%,70.42%,76.06%,94.37%,when the critical point was made 1.5.Conclusions:SELDI-TOF-MS ProteinChip technology is a quick,easy,convenient,and highoutput analyzing method that it is capable of selecting several relatively specific,potential biomarkers from the serum of lung adenocarcinoma patients and may have clinic value.

AlM:To investigate the prevalence of pterygium of the household population aged 40 and above in Hengli Town of Dongguan.
METHODS: Using the method of cluster random sampling, select 3 628 people aged 40 and above in four villages and one community for visual examination, intraocular pressure check, slit lamp examination and questionnaire.
RESULTS: The actual number of subjects was 3 393 people, and examination rate was 93. 52%. We detected 843 patients with pterygium. The prevalence of pterygium was 24. 85%.
CONCLUSlON:There is high prevalence of pterygium in Dongguan area. The prevalence of pterygium is related with age and working environment, but has no relation with gender.

Adenocarcinoma ; metabolism ; pathology ; Adenoma ; metabolism ; pathology ; Aged ; Cell Line, Tumor ; metabolism ; Colorectal Neoplasms ; metabolism ; pathology ; Ether-A-Go-Go Potassium Channels ; genetics ; metabolism ; Female ; HT29 Cells ; metabolism ; Humans ; Lymphatic Metastasis ; Male ; Middle Aged ; Neoplasm Metastasis ; Neoplasm Staging ; RNA, Messenger ; metabolism ; Tumor Burden

OBJECTIVETo observe the effect of American Ginseng Capsule (AGC) on the liver oxidative injury and the Nrf2 protein expression in the liver tissue of rats exposed by 900 MHz cell phone electromagnetic radiation.

METHODSTotally 40 male SD rats were randomly divided into the normal control group, the model group, the Shuifei Jibin Capsule (SJC) group, and the AGC group,10 in each group. Rats in the normal control group were not irradiated. Rats in the rest three groups were exposed by imitated 900 MHz cellular phone for 4 h in 12 consecutive days. Meanwhile, rats in the SJC group and the AGC group were intragastrically administrated with suspension of SJC and AGC (1 mL/200 g body weight) respectively. Normal saline was administered to rats in the normal control group and the model group. The histolomorphological changes of the liver tissue were observed by HE staining. Contents of malonic dialdehyde (MDA), superoxide dismutase (SOD), glutathione (GSH), and glutathione peroxidase (GSH-PX)were detected by colorimetry. The Nrf2 protein expression of hepatocytes was detected by immunohistochemical assay and Western blot.

RESULTSCompared with the normal control group, hepatocyte nucleus was atrophied or partially disappeared, the contents of liver MDA and Nrf2 protein obviously increased (P <0. 05, P <0. 01); contents of liver SOD and GSH decreased (P <0. 05) in the model group. Compared with the model group, karyopyknosis was obviously attenuated and approached to the normal level in the SJC group and the AGC group. The contents of liver MDA and Nrf2 protein expression decreased (P <0. 05), and the contents of liver SOD, GSH, and GSH-PX obviously increased (P < 0.05) in the SJC group. The contents of liver MDA and the Nrf2 protein expression decreased (P < 0.05), and contents of SOD and GSH obviously increased in the AGC group (P <0.01, P <0.05).

CONCLUSIONSThe electromagnetic radiation induced by 900 MHz cell phone could affect the expression of Nrf2 protein, induce oxidative injury, and induce abnormal morphology of liver cells. SJC and AGC could promote the morphological recovery of the liver cells. Its mechanism might be related to affecting the expression of Nrf2 protein and attenuating oxidative damage of liver cells.

Animals ; Cell Phone ; Electromagnetic Radiation ; Glutathione Peroxidase ; metabolism ; Hepatocytes ; metabolism ; Liver ; Male ; NF-E2-Related Factor 2 ; metabolism ; Oxidative Stress ; drug effects ; Panax ; Plant Extracts ; pharmacology ; Rats ; Superoxide Dismutase ; metabolism

Objective To explore the relationship between the endemic arsenism and the liver,renal damage.Methods Some permanent residents were selected as investigated subjects who lived at 3 villages in Datong in Shanxi Province,an arseniasis-endemic areas,These objects were divided into arsenic poisoning and control group on the basis of Diagnosis Standard for Endemic Arsenism(WS/T 211-2001).Then blood and urine samples were collected in the surveyed people.Serum glutamate pyruvic transaminase(ALT)were detected by Enzyme-linked immunosorbent assay as the indicator of the impaired hepatic function.The microdosis albumen (mAlb)and acetylglucosaminidase(NAG)in urine were detected by end-point method and alkaline picric acid as the renal damage indicators.Results A total of 661 people investigated,of which 144 cases were arsenic poisoning patients.The rates of abnormal liver function were significant hisher in arsenic poisoning group[10.42% (15/144)]than that in control[5.22%(27/517)],and both wag significant[X2=5.107,P＜0.05;OR=2.11,95%CI (1.09-4.08)].The geometric mean of mAlb/Ucr was 2.16 mg/g Cr in control,and 2.31 mg/g Cr in arsenic poisoning group,and both was not significant(t=-1.71,P＞0.05).The geometric mean of NAG waft higher in arsenic poisoning group(2.43 U/g Cr)than that in the control(2.22 U/g Cr),and both was significant(t=-3.55, P＜0.05).Conclusions The damage of the liver and renal function were related with endemic arsenism,and NAG is the early indicators suggesting impaired renal function due to endemic arsenism.

Objective To observe the expression change of phosphorylation glogyen synthase kinase 3β at Ser9 [p-GSK3β (Ser9)] and investigate whether GSK3β involved in the retinal ganglion cell (RGC) and optic nerve in rat ocular hypertension model.Methods Thirty health Sprague Dawley (SD) rats with normal intraocular pressure (IOP) were randomly divided into 3 groups(10 cases in each group):control group,2 weeks ocular hypertension(OHT) group and 4 weeks OHT group.The ocular hypertension model was established by using episcleral veins ligation and cauterization.5 eyes from each group were taken for frozen section at week 2 and week 4 after establishing ocular hypertension model.The number of RGC was counted with Nissl's staining.The expression and distribution of p-GSK3β (Ser9) in RGC and optic nerve were detected by immunofluorescence staining.The retinal sample of other 5 rats was harvested for detecting the expression of total glogyen synthase kinase 3 β (total GSK3β) and p-GSK3β (Ser9) by Western blot.Results There was no statistical difference in IOP before modeling among three groups (P =0.89),but there was statistical difference after modeling (P ＜0.01),compared with the control group,the increased rate of IOP in 2 weeks OHT group and 4 weeks OHT group were 59.13％ and 26.93％ (all P ＜ 0.05).The average RGC numbers of 2 weeks OHT group and 4 weeks OHT group were 120 ± 10 per eye and 86 ± 7 per eye,which were both less than the number 149 ± 12 per eye in control rats,there were statistical differences (all P ＜ 0.05).Furthermore,the number of RGC in 4 weeks OHT group was less than 2 weeks OHT group (P ＜0.01).The expression of p-GSK3 β (Ser9) in the retina and optic nerve were positive detected by immunofluorescence,and the intensity of p-GSK3β (Ser9) immunofluorescence staining in RGC and optic nerve of OHT rats were less than model control eyes.The amount of p-GSK3β (Ser9) in retina of 2 weeks OHT rats decreased 19.89％ compared with control group rats (P ＜ 0.05),and the amount of p-GSK3β (Ser9) in retina of 4 weeks OHT rats was significantly decreased 36.46％ compared with control group rats(all P ＜ 0.05).While the total GSK3β did not change(P ＞ 0.05).Conclusion The number of RGC and the expression of p-GSK3β (Ser9) in RGC and optic nerve of OHT rat eyes decreased significantly.The change expression of the p-GSK3β (Ser9) in the RGCs and optic nerve may be correlated with RGC neurodegeneration in glaucomatous disorders.

Objective To investigate expression level of endoplasmic reticulum stressmarker GRP78 in the testicular tissue in rats with different phases of morphine-dependence. To explore the role of ERS in morphine-de-pendence. Methods SD rats were divided into 6 groups: morphine (mor) -withdrawal group, mor-extinct group, mor-kindling group and their control groups, normal saline (NS)-withdrawal group, NS-extinct group, NS-kindling group. The experimental rats were injected with morphine subcutaneously on increasing dosage to establish the con-ditioned place preference (CPP) model. The rats in control groups were injected NS. Then the rats were suffered from withdrawal for 48 h, extinction and kindling by morphine, separately. The GRP78 expression level in testicular tissues of rats in the time point mentioned above were measured using Western Blot. Results The time of rats in the paired-box was (528.0 ± 81.0) s, which was significantly higher than that in the NS control group (P<0.001). It was (396.8 ± 116.9) s after extinctive phase, which was significantly higher than that the withdrawal phase of rats (P < 0.001). Also it was (396.8 ± 116.9) s after kindling with morphine which was significantly higher than that the extinctive phase of rats (P < 0.001). These changes of the time indicated that the animal models of extinction and kindling were established in the study. The GRP78 levels were down-regulated in 48 h after withdrawal (P <0.05), and increased a bit afterextinctive phase, but up-regulated highly after kindling with morphine (P < 0.01). Conclusion ERS may be related in the morphine dependence and it might play an important role of testicular dys-function in male drugabuser.

Objective To explore the feasibility and efficacy of laparoscopic total mesorectal excision(TME) with preservation of anal sphincter for rectal cancer.Methods From October 2001 to March 2004,54(patients) with rectal cancer underwent laparoscopic total mesorectal excision(TME) with preservation of anal sphincter.In 51 of the 54 cases,the operation was completed laparoscopically,including 14 cases of(laparoscopic) anterior resection(AR) with the anastomosis level above the peritoneal reflection;20 cases of laparoscopic low anterior resection(LAR) with the anastomosis level more than 2cm above the dentate line;16 cases of laparoscopic ultralow anterior resection(ULAR) with the level of anastomosis within 2cm of the dentate line;and 2 cases of laparoscopic coloanal anastomosis(CAA) with the level of the anastomosis at or below the dentate line.whereas conversion to an open approach was required in three cases.Results The average operating time was 145 minutes(range 110~210min),and mean operative blood loss was 50 mL(range 30~80mL).Bowel function was restored and diet was resumed at 48 to 36 hours after operation.The average hospital stay was 9 days(range 7~14d).TME was completed successfully in 51 patients.Postoperative analgesics were used in 20 patients.No intraoperative or postoperative complications were(observed).Follow-up time was from 6~36 months in 51 patiebts,and there was no port-site or local tumor recurrence.Conclusions Laparoscopic TME is feasible and safe.It is a perspective technique with the(benefits) of minimally invasive technique and lower blood loss during operation,and rapid recovery.