Background and purpose:The prognosis of ovarian cancer is poor and the diagnosis is relatively late. It is needed to search for early diagnosis and treatment for ovarian cancer. This study investigated the expression of serum miRNAs in patients with malignancy or benign ovarian tumor preoperativey and analyzed its correlation with clinicopathological progress and prognostic features of epithelial ovarian cancer.Methods:Forty-eight miRNAs which have been reported to be related to ovarian cancer were ordered. The differential expression of 48 miRNAs in the serum of patients with malignant or benign epithelial ovarian tumors was detected by TaqMan low density array. The differentially expressed miRNAs were further confirmed by real-time fluorescent quantitative polymerase chain reaction (RTFQ-PCR). The relationship between the expression level of selected miRNA and clinical clinicopathological factors, progress and prognosis were analyzed.Results:TaqMan low density array and further RTFQ-PCR showed that only miR-125b was sig-nificantly increased in 135 ovarian cancer patients as compared with 38 individuals with benign tumor. The expression of miR-125b was higher in early stage patients than that in advanced stage patients (P=0.039). The patients without residual tumor expressed more miR-125b than patients with residual tumor (P=0.013). The high level of miR-125b was signifi-cantly correlated with longer progress free survival (PFS) (P=0.003), but not correlated with overall survival (OS) (P=0.069). Conclusion:MiR-125b may play an important role in the pathogenesis of epithelial ovarian cancer and prognosis. It may be a potential gene to predict the recurrence of epithelial ovarian cancer, but the change of gene expression at different stages and its underlying mechanism need further research.

Objective To observe and evaluate the effects of the deep hypothermic circulatory arrest(DHCA) and regional cerebral perfusion(RCP) in pediatric aortic arch surgery.Methods According to different methods of CPB,70 infants less than 3-month-old with CoA or IAA were undergone corrective surgery with DHCA or RCP.The bypass time,aortic clamp time,DHCA or RCP time,ventilation time,ICU stay time and post-operative complications were recorded and compared between two groups.Results The incidence of neurological complications was significantly higher in DHCA group.The CPB time was significantly longer in the RCP group,and the RCP time was significantly longer than DHCA time.Blocking time,ventilator intubation time,ICU residence time,postoperative renal dysfunction,low cardiac output,puhnonary inflammation and hospital mortality was no significant difference between the two groups.Conclusion RCP is an effective cerebral protection technique.Compared with DHCA,RCP works better in sustained brain cerebral perfusion and is suitable for complex aortic arch operation in children.It has a better effort in protection of the neurological system than DHCA.

Objective To study the efficacy of low dose of combined angiotensin Ⅱ type 1 receptor blockade(ARB)valsartan with angiotensin-converting enzyme inhibitor(ACEI)ramipril on the expression of the gene of angiotensin Ⅱ type 1 receptor(AT1R)and type 2 receptor(AT2R)in cardiovascular vessels and brain in SHR.Methods SHRs 7-8 weeks old were received valsartan 30 mg/(kg?d),or ramipril 1 mg/(kg?d),or valsartan 15 mg/(kg?d)combined with ramipril 0.5 mg/(kg?d)by gavage for three months.SBP,LV/BW ratio,plasma angiotensin Ⅱ,plasma and myocardial NO levels were determined.The severity of myocardial interstitial fibrosis was assessed by image analysis.ACE mRNA,AT1R mRNA and AT2R mRNA expression were detected in the LV myocardium,aorta and brain by the RT-PCR.Results Combined low dose of valsartan and ramipril was shown to reduce more significantly the expression of AT1R mRNA and ACE mRNA in myocardium,aorta and brain than valsartan or ramipril monotherapy(AT1R mRNA:P

Objective To investigate the effects of bilateral sternocleidomastoideus contraction on neck flexion and extension. Methods The electromyograms (EMG) signals of left sternocleidomastoideus of 24 healthy persons were recorded respectively when neck relaxation and flexion in the supine position, and neck relaxation and extension in the prone position. The biomechanical measurement and analysis were done using anatomical specimens and models. Results The sternocleidomastoideus registered electrical resting potential when neck relaxation in the supine position, and when neck relaxation and extension in the prone position; the motor unit action potential of sternocleidomastoideus raised the type of mixed phase when neck flexion in the supine position. Conclusion The contractions of bilateral sternocleidomastoideus can lead to the head and neck flexion while neck joints are not fixed, and the contractions of bilateral sternocleidomastoideus can lead to the head extension under the state of fixing neck joints below atlanto-occipital.

Objective To construct the prokaryotic expression vector bearing fusion gene NT4-ADNF-9 and lay foundation for further study on genetic therapy of neuraseusory deafness. Methods By means of asymmetrical prince/ template, double stranded eDNA of activity dependent neurotrophic factor-9 (ADNF-9) was obtained, which included restriction enzymes sites on the two extremities. ADNF-9 eDNA was ligated to the signal and leader peptides of nenrotrophin 4 (NT4), and the fusion gene was named NT4-ADNF-9. Then it was suheluned into prokaryotic expression vector pBV220, and called pBV220/ NT4-ADNF-9. Results Evidences of DNA sequence analysis and restrtction enzymes digestion showed that we recombined ADNF-9 eDNA to the 3'terminal of the signal and leader peptides of NT4, and the fusion gene was subcluned into pBV220 successfully. Bioactivity of the products was proved that it could support the cell survival and neurite growth in the primary cultures of dorsal root ganglia (DRG) of embryonic day-8 cbicken neurons as compared to the control. Conclusion Prokaryotic expression vector pBV220/NT4-ADNF-9 can be constructed successfully and the bioactivtty is satisfactory.

Objective:To establish the bacterial endotoxin test method and the abnormal toxicity test method for reduced glutathi -one for injection.Methods:According to the requirements and methods in Chinese Pharmacopoeia (2015 edition, part IV), the bacte-rial endotoxin test and the abnormal toxicity test for reduced glutathione were studied .Results:The limit of bacterial endotoxin for re-duced glutathione was 0.125 EU· mg-1 , and the limit of abnormal toxicity was 1.0 g· kg-1 .Conclusion: The bacterial endotoxin test method and the abnormal toxicity test method are feasible .The abnormal toxicity should be supplemented in the quality standard for reduced glutathione , and the bacterial endotoxin test can replace the pyrogen test .

Objective To evaluate the effects of the project of ditching for drain on Oncomelania hupensis snail control and flood prevention security and explore the optimal engineering design plan in Dongting Lake region. Methods A retrospective study was performed on the previous studies about the project of ditching for drain. The reference values of project indices were determined. The outside levee of Nanhu New Distinct of Yueyang City in Dongting Lake region was selected as the study area , and the cross section of marshland perpendicular to the center line of the levee was extracted to research. According to the situa?tions of various water levels,a dynamic simulation was performed on the effect and security of the project of ditching for drain through the software FLAC3D. Results The retrospective study showed that the project would be effective when the relatively subsoil water level decreased by 0.35 m,and the soil water content decreased correspondingly. The dynamic simulation by FLAC3D showed that the minimum safe distances between transverse ditch 1,vertical ditch and levee toe should be 25 m and 13 m respectively. The digging depth of transverse ditch and vertical ditch should be 1.2 m and 1.0 m respectively. If the width of marshland in drought period was less than 500 m,one transverse ditch was efficient. Otherwise,more transverse ditches should be set with the intervals of 300 m. Conclusions The project of ditching for drain is an effective ecological snail elimination method. Optimizing the digging depth of ditches and distances between transverse ditches,vertical ditch and levee toe will en?sure the effects and security of the project.

BACKGROUND:Previous studies have shown that calcitonin gene-related peptide can be released from cardiac sensory afferent terminals fol owing coronary artery occlusion in rats, indicating the involvement of calcitonin gene-related peptide during pathological process of acute myocardial ischemia.
OBJECTIVE:To investigate the effect of calcitonin gene-related peptide on neonatal rat cardiomyocytes apoptosis induced by oxidized low-density lipoprotein and hypoxia/reoxygenation.
METHODS:Twenty wel s of primary cultured neonatal rat myocardial cel s were randomly divided into five groups:normal control group, oxidized low-density lipoprotein group, oxidized low-density lipoprotein hypoxia/reoxygenation group, calcitonin gene-related peptide group and calcitonin gene-related peptide 8-37 group. The cel s in the last four groups were incubated with oxidized low-density lipoprotein for 24 hours before establishing the myocardial hypoxia/reoxygenation model. At 30 minutes prior to hypoxia/reoxygenation, 10-8 mol/L calcitonin gene-related peptide were added into the culture fluid in calcitonin gene-related peptide group;10-7 mol/L competitive antagonist calcitonin gene-related peptide 8-37 of calcitonin gene-related peptide-1 receptor were added at 30 minutes before calcitonin gene-related peptide administration in calcitonin gene-related peptide 8-37 group. Myocardial apoptotic rate and caspase-3 activity were detected respectively.
RESULTS AND CONCLUSION:Calcitonin gene-related peptide could significantly attenuate apoptosis of neonatal rat myocardial cel s through inhibiting the caspase-3 activation induced by oxidized low-density lipoprotein and hypoxia/reoxygenation. And this effect could be partial y reversed by competitive antagonist calcitonin gene-related peptide 8-37 of calcitonin gene-related peptide 1 receptor, indicating that calcitonin gene-related peptide has anti-apoptotic effect in combination with the calcitonin gene-related peptide 1 receptor to inhibit cardiomyocyte apoptosis in neonatal rats induced by oxidized low-density lipoprotein and hypoxia/reoxygenation.

The study is to design chitosan-coated pilocarpine nitrate submicro emulsion (CS-PN/SE) for the development of a novel mucoadhesive submicro emulsion, aiming to prolong the precorneal retention time and improve the ocular absorption. CS-PN/SE was fabricated in two steps: firstly, pilocarpine nitrate submicro emulsion (PN/SE) was prepared by high-speed shear with medium chain triglycerides (MCT) as oil phase and Tween 80 as the main emulsifier, and then incubated with chitosan (CS) acetic solution. The preparation process was optimized by central composite design-response surface methodology. Besides the particle size, zeta potential, entrapment efficiency and micromorphology were investigated, CS-PN/SE's precorneal residence properties and miotic effect were especially studied using New Zealand rabbits as the animal model. When CS-PN/SE was administered topically to rabbit eyes, the ocular clearance and the mean resident time (MRT) of pilocarpine nitrate were found to be dramatically improved (P < 0.05) compared with PN/SE and pilocarpine nitrate solution (PNs), since the K(CS-PN/SE) was declined to 0.006 4 +/- 0.000 3 min(-1) while MRT was prolonged up to 155.4 min. Pharmacodynamics results showed that the maximum miosis of CS-PN/SE was as high as 46.3%, while the miotic response lasted 480 min which is 255 min and 105 min longer than that of PNs and PN/SE, respectively. A larger area under the miotic percentage vs time curve (AUC) of CS-PN/SE was exhibited which is 1.6 folds and 1.2 folds as much as that of PNs and PN/SE, respectively (P < 0.05). Therefore, CS-PN/SE could enhance the duration of action and ocular bioavailability by improving the precorneal residence and ocular absorption significantly.

Objective To observe the effect of topical application with warm and wet carthamus tinctorius alcohol and anisodaminum on phlebitis caused by mannitol injection. Methods 100 patients with fractured bones suffered from phlebitis caused by mannitol injection were randomized into the observation group and the control group with 50 cases in each group. The observation group adopted topical application with warm and wet carthamus tinctorius alcohol and anisodaminum while the control received external application of 50% magnesium sulfate. The dosage was 3 hours per time,2 times a day, one time in the morning and afternoon respectively. The treatment continued till the phlebitis disappeared and the effect at the 24th,48th and 72th post treatment was compared between the two groups. Results The effect at the above mentioned time points in the obsevation group was superior to that of the control group(P＜0.05).Conclusion Topical application with warm and wet carthamus tinctorius alcohol and anisodaminum on phlebitis caused by mannitol injection proved to be safe and had no adverse effect.