Angiopoietin(Ang)is a secreted endothelial cell specific growth factor.Ang 2 levels in the body increase in bloodstream during infection.Studies have demonstrated that Ang 2 is a potential therapeutic target in sepsis.This paper reviews the biological function of Ang 2-Tie2 and Ang 2 inhibitors for a potential role of sepsis treatment.

Objective: To study the higher order aberrations of emmetropic and ametropic eyes with wavefront aberrometer. Methods: Forty of cases 77 emmetropic and ametropic eyes were measured with an aberrometer based on Tscherning's principle with the pupils dilated. The Zernike coefficients and root mean square values of wavefront aberrations up to the 6th order were recorded and statistically analyzed. Results: The C06,C07,C08,C12,C13,C14,C24,C26,and C27 were significantly different from zero under 7 mm pupil size and the C06,C10,C12,C23,and C24 were significantly different from zero under 4 mm pupil size. There was no significant difference of higher order wavefront aberrations between emmetropic and ametropic eyes. Comparing the age of 40 years or less with the age over 40 years, there were significant differences in RMS3 between the two under 7 mm pupil size, and statistical diffenences in RMS6 and RMSh between the two under 4 mm pupil size. Conclusion: There are certain higher order wavefront aberrations in the normal human eyes, especially with the pupis dilated. No differences are found in higher order aberrations between emmetropic and ametropic eyes. The higher order aberrations of the age over 40 years are more than those of the age of 40 years or younger.

Objective:To investigate the wether vascular endothelial growth factor (VEGF) and endostatin could be used as new serum markers of endometriosis. Methods:Preoperative serum levels of VEGF and endostatin in 82 women with endometriosis(stage Ⅰ-Ⅱ 43 cases and stage Ⅲ-Ⅳ 39 cases) were assayed in duplicate using enzyme linked immunoadsordent assay. Serum levels were compared with levels of 60 healthy controls. Results: Serum VEGF and endostatin levels in endometriosis were significantly higher than that of controls. The levels of VEGF and endostatin of endonmetriosis stages Ⅰ-Ⅱ were significantly lower than those of stage Ⅲ-Ⅳ. The sensitivity, specificity, positive predictive value and negative predictive value of serum VEGF in detecting endometriosis were 0.92,0.78,0.82 and 0.90, respectively; those of enedostatin were 0.95, 0.84, 0.86 and 0.95, respectively. When both factors were used concomitantly, they were 0.98,0.75,0.76 and 0.98, respectively. Conclusion:These results indicates that the balance of angiogenic stimulators and inhibitors may regulate the development and progression of endometriosis and demonstrates that the circulating levels of both VEGF and endostatin maybe useful markers for endometriosis.

Objective To investigate the effects of esmolol on ATPase activity in myocardial mitochondria after resuscitation in rats.Methods Sixty-six male Wistar rats were randomly allocated to three groups:sham group,AD group,AD+Es group.A cardiac arrest model was reproduced by asphyxiation in rats,and then CPR was performed in these animals after 10min asphyxia.The ATPase activity of myocardial mitochondria was determined at 30th,120th and 180th minute after resuscitation.ECG,MAP,HR and temperature were measured continuously.Results Heart rates were significantly higher after adrenaline when compared with sham group.Myocardial mitochondria ATPase activity was decreased significantly in both AD and AD+Es group compared with that of sham group(P

Objective To compare the effects between dilation and curettage (D&C) and hysteroscopic electroresection (HE) in the management of endometrial polyps. Methods Entered into the study there were 86 patients with endometrial polyps, 32 of them were treated by D&C (Group D&C) and 54 by HE (Group HE). The operation time, pre- and post- operative complications, and recurrence of 2 groups were compared. Results Of the Group D&C and Group HE, the operation time were (8.5?4.2) min and (9.0?3.1) min, without statistically significant differences (t=0.632, P=0.529), while the recurrence numbers and recurrence time of the 2 groups were 9 (36.0%) and 3 (7.5%) cases, (5.3?3.5) months and (11.2?4.8) months, respectively, with significant differences (?2=6.516, P= 0.011; t=6.058, P=0.000). Conclusions Compared with D&C, HE is characterized by lower recurrence rate and longer recurrence time.

Objective:To investigate the KRAS gene mutation features in lung and gastric cancers and their relationship with clinicopathologic characteristics. Methods:A total of 128 lung cancer and 115 gastric cancer patients were included. Polymerase chain reaction amplification and DNA sequencing were conducted to detect mutations in exon 2 of the KRAS gene. Results:The mutation frequency of KRAS was different in lung and gastric cancers;however, it did not show any statistical significance (6.3%vs. 4.3%, P>0.05). The KRAS codon 12 gene mutation ranks the first in both types of cancer. No significant correlation was observed between the prevalence of KRAS mutations and patient's age and gender. KRAS gene mutation rate was higher in lung adenocarcinoma than in non-adenocarcinoma, such as squamous cancer (10.7%vs. 0%, P<0.05). Conclusion:No correlation was found between the KRAS gene mutation and the sex and age of lung and gastric cancer patients in Jiangsu Province. The rate of KRAS mutation was low. KRAS gene mutation rate was relatively higher in lung adenocarcinoma patients;thus, the mutation status of the KRAS gene should be evaluated be-fore undergoing EGFR-TKI therapy.

Objective To discuss the effect of melatonin on sleep and agitation in patients who had undergone tracheotomy in ICU.Methods Sixty-six tracheotomisd patients of ASA Ⅱ or Ⅲ in ICU were included,age 18-60 years,weaning from mechanical ventilation not receiving continuous sedation.We conducted a double-blind, placebo-controlled randomized pilot study comparing melatonin with placebo in such patients.They were allocated into two groups by compute randomiza-tion-melatonin group(n =32)and control group(n = 34).We administered either oral melatonin (3 mg)or placebo at 20∶00 for 7 days.We collected pre-and post-dosage blood samples on days 1 and 3 to confirm drug delivery.The hours of sleep at day and night were assessed by the bedside nurse as the primary outcome.And the secondary outcome included comparison of the incidence of agitation, assessed by score on the Riker Sedation Agitation Scale,and requirement for sedatives or haloperidol to settle agitation.Results Pre-treatment melatonin levels in the two groups were similarly low.Post-treatment,melatonin levels increased significantly in the melatonin group compared with the placebo group (3 233±1 961 )pg/ml versus (3.8 ± 2.2 )pg/ml(P < 0.05 ).And subsequently the observed sleep time in the two groups was (1 1.9±2.0)hours for melatonin vs (7.8±1.6)hours for placebo, respectively (P < 0.01 ).The incidence of agitation was significantly lower in the melatonin group (0% vs 8.8%).Conclusion Melatonin is well absorbed,and a standard dose increases blood levels approximately 1000-fold.Furthermore it would help the tracheotomisd patients sleep and ease agitation in ICU.

Objective To study the preventive effect of cluster intervention strategies for central venous catheter(CVC)on catheter-related bloodstream infection? Methods One hundred and eighty six patients with CVC during Jan? to Oct? 2011 before application of cluster intervention strategies were assigned in the control group and another 193 with CVC during Jan? to Oct? 2012 after using cluster intervention strategies in the cluster group? The two groups were compared in terms of the incidence and time of CRBSI as well as the catheteration? Results After using the cluster intervention strategies,the incidence of CRBSI was decreased from 8?31‰to 1?67‰ (P < 0?001)? The time of CRBSI was prolonged from(7?47±2?44)to(13?75±1?92)d(P < 0?05)? The catheteration in subclavian vein was significantly increased from 39?78% to 71?50%(P < 0?05)and the catheteration was significantly deceased from 45?70% to 18?65%(P < 0?05)? Conclusion The CVC cluster intervention strategies may effectively reduce the incidence of CRBSI?

Objective To investigate the effect of progesterone pretreatment of focal cerebral ischemic and reperfusion injury (fCIRI) and underlying molecular mechanisms.Methods A single intraperitoneal injection of progesterone (8 mg/kg) given 1 h,48 h and 96 h before fCIRI was established in male Sprague-Dawley rats.The number of survival of neurons in hippocampal CA1 region of the ischemiaside,as well as spatial memory function,was detected on days 3-8 after fCIRI.Extracellular-signalregulated kinase 1/2 phosphorylation (p-ERK1/2) and nuclear translocation of p-ERK1/2 in hippocampal CA1 region were examined using western blot.Results The number of survival of neuronal cells was significantly increased in ischemic groups treated with progesterone at 1 h and 48 h pre-fCIRI (164.3 ± 11.0,218.5 ± 9.1 and 142.7 ± 12.1,F =29.4,P ＜ 0.01) compared with fCIRI group treated with vehicle.Likewise,the escape-latency to reach the hidden-platform recorded in day 5 of Morris water maze test was reduced markedly in fCIRI-treatment groups compared with the vehicle group(10.3 ± 11.1,19.2 ±9.6 and 32.4 ± 14.3 ;F =35.8,P ＜0.01).The level of p-ERK1/2 was elevated notably during 24 h to 48 h postprogesterone by western blot,while restored to the baseline at 96 h post-progesterone.Improved nuclear translocation of p-ERK1/2 was observed from 2 h to 48 h post-progesterone.The progesterone receptor antagonist RU486 blocked the exaltation of either intracellular level or nuclear translocation of p-ERK1/2,which was induced by progesterone.Conclusions The pretreatment with progesterone exerts a neuroprotective effect against the ischemia-induced neuronal death and ameliorates the deficits in spatial memory through enhancing the activation of ERK1/2.The neuroprotection derived from pretreatment with progesterone achieves a time window of not less than 48 h,which is progesterone receptor-mediated ERK1/2 signaling pathway-dependent.

BACKGROUND: Lentivirus can infect divided and undivided cells. It remains uncertain whether the lentivirus can successful y infect primary ovarian granulosa cells. OBJECTIVE: To investigate infecting ratio and cel apoptosis of lentivirus carrying bcl-2 gene in primary human ovarian granulose cells cultured in vitro. METHODS: The lentiviral vector carrying bcl-2 gene was constructed using molecular biology, and packaged into lentivirus with high titer. The resulting recombinant lentivirus carrying bcl-2 genes were then used to infect primary human ovarian granulosa cells in vitro at different multiplicity of infection, 10, 50, 100, 200, and 400. Infection efficiency and cel proliferation were observed at 24, 48, 72, and 96 hours fol owing infection. Cel apoptosis was detected by flow cytometry, and bcl-2 gene transcription was assessed using reverse transcription PCR. RESULTS AND CONCLUSION: Primary human ovarian granulosa cells adhered at 24 hours, and exhibited polygon- or fusiform-shape and colony-like growth. When multiplicity of infection was 100, cel appearance and growth remained unchanged, and infection efficiency was high, which reached the peak up to 72 hours. Moreover, the positive rate was up to 60% in granulosa cells. Lentivirus carrying bcl-2 gene could increase expression of Bcl-2 protein and inhibit apoptosis of primary ovarian granulosa cells.