Objective To summarize the status of tumor stem cells study in solid tumors.Methods Domestic and international publications on the study of tumor stem cells in solid tumors in recent years were collected and reviewed.Results Tumor stem cells exactly existed in solid tumors and played a very important role in tumorgenesis.Conclusion Tumor stem cells bring a new broad of perspective on solid tumor study.

Objective To summarize the experiences in laparoscopic inguinal hernia repairing for adult patients. Methods Clinical data of 512 hernia cases admitted in our center from March 2007 to Sep 2010 were retrospectively analyzed.There were 437 cases of single-sided hernia,including 281 indirect inguinal hernia,86 direct inguinal hernia,15 femoral hernia,16 combined inguinal hernia and 39 recurrent hernia.There were also 75 cases of double-sided inguinal hernia,including 3 recurrent hernia.There were 41 acute incarcerated hernia cases.The average postoperative follow up time was(29 ± 12) months. Results 507 cases underwent successful laparoscopic repair,and 5 cases were converted to open procedure.There were 238 TAPP and 269 TEP in laparoscopic operations.The average operative time for TAPP was (69 ±19) min,and (58 ±15) min for TEP.The average length of postoperative stay was (5.0 ± 1.5) days.The percentage of resuming normal activity after 2 weeks and 4 weeks were 95.7％ (485/507) and 99.0％(502/507).The most common postoperative complications were seroma (9.7％,49/507),transient paresthesia (4.1％,21/507) and chronic pain (0.8％,4/507).The recurrence rate was 0.6％ (3/507).Conclusions Laparoscopic repair of inguinal hernia has the advantage of less trauma,faster recovery,and lower recurrence rate.

Objective To investigate the value of remnant stomach-jejunal dual pathways reconstruction after laparoscope-assisted radical proximal gastrectomy in the treatment of upper gastric cancer. Methods Twenty-five patients with upper gastric cancer underwent laparoscope-assisted radical proximal gastrectomy and the remnant distal stomach was preserved for side-to-side remnant stomach-jejunal anastomosis and end-to-side jejuno-jejunal anastomosis to reconstruct dual pathways. Results The mean operation time was (240±35) minutes, the mean number of lymph nodes dissected were 22±5, and all the incised margins were negative. No anastomotic leakage, obstruction or stenosis occurred. All patients received postoperative barium meal examination. A large amount of barium directly entered the jejunum, leaving a small amount of barium entered the jejunnum via the route of remnant stomach-duodenum, and was detained in the remnant stomach for 30-60 minutes. No esophageal reflux of barium was observed. All the patients were followed up for 4-18 months, no reflux esophagitis was detected and the short-term life quality was satisfactory. Conclusions Remnant stomach-jejunal dual pathways reconstruction prevents the reflux esophagitis and dumping syndrome, preserves the pathway of duodenum and promotes the life quality of patients.

Objective To investigate the change patterns of operation time of laparoscopic appendectomy and its significance. Methods The clinical data of 105 consecutive patients with appendicitis who received laparoscopic appendectomy at the Southwest Hospital from January 2007 to March 2010 were retrospectively analyzed. Of the 105 patients, five were converted to open surgery, and they were excluded from this study.The changes in operation time of different surgeons were statistically analyzed to detect the change patterns of the learning curve in laparoscopic appendectomy. Results A hundred cases of laparoscopic appendectomy were successfully performed by three surgeons. The mean operation time was ( 87 ± 36 ) minutes ( range, 30-217 minutes). No surgical injury happened during the operation, and the blood loss was under 10 ml. The learning curve of operation time was presented as a sine curve with an oscillating decreasing trend. The primary two cycles end at an average of 9.6 cases, which could be used as the end point of the learning curve of laparoscopic appendectomy. Conclusions The learning curve of laparoscopic appendectomy shows a typical oscillating decreasing trend. The preliminary study ends when 9.6 cases of operation are completed.

AIM: To study the role of nitric oxide ( NO ) and γ-aminobutyric acid ( GABA) in the formation of amblyopia by establishing 2 different types of amblyopic models.METHODS:A total of 18 aged 3-week kittens were randomly divided into monocular deprivation, strabismus and normal groups. All types of amblyopia were developed in the experimental eyes that were detected by P-VEP 12wk later. The cats were killed and the immunocytochemistry staining method were applied to observe under the light microscope the changes of distribution and positive cells areas of NO and GABA across the amblyopic retinal, compared to that from the normal cats of identical age.
RESULTS: The P-VEP showed that the amplitude of wave P1 was lower (P<0. 05) and the P1 latent time was longer ( P<0. 05 ) in two types of amblyopic cats than those in the normal cats. Compared to the normal cats, the NO and GABA positive cells areas were obviously reduced ( P<0. 05 ) across the retina in the amblyopic cats. But no significant difference was found between two kinds of amblyopic cats.
CONCLUSION:The NO and GABA play an important role in the formation of amblyopia in the level of retinal.

Objective To test the effect of an APP in the adherence of inhalation medicines for children with asthma,improve the rate of inhalation medicines compliance,self management ability and the quality of life of children with asthma.Methods The research use self-control study.We use Medication Adherence Report Scale for Asthma (MARS-A) to test the adherence of inhalation medicines for children with asthma in outpatient department.After 2 months using the APP,the children with asthma may be re-tested by the MARS-A to compare the differences in medication adherence,asthma knowledge,use method and pulmonary function,etc.Finally,data analysis using paired t test.Results After using the APP,the inhalation medicines adherence rate is increased from 25.78 ％ to 68.75 ％,the awareness rate of patients and their caregivers are increased from 25 ％ to 65 ％,and the APP usage rate is 42.18％,there was significant difference (P＜0.01).Conclusion The APP can effectively improve the adherence of inhalation drugs,standardized medication management,guarantee treatment effect and improve the quality of life of children with asthma.It could also reducing medical costs and improving work efficiency and service quality,thus deserves promotion.

Objective? To explore the reasons of hypertensive patients' uncontrolled blood pressure before onset of ischemic stroke so as to provide clinical evidence for stroke prevention. Methods? The phenomenological analysis method in qualitative research was applied. From February to June 2016, 15 hypertensive ischemic stroke patients with hypertensive cerebral infarction and low medication adherence admitted to the department of neurology of three tertiary hospitals in Guangdong province were selected and participated in qualitative interviews. Results? By Colaizzi phenomenological analysis method, the medication misconception of patients were summarized into 4 themes: estimating physical condition by self-feeling, holding the opinion that there was few relation between "whether monitoring blood pressure", "forgetting medication","stopping medication because of various reasons" and cerebral infarction. Conclusions? There are some misunderstandings in the cognition of taking medicine before the onset of hypertensive cerebral infarction. It suggests that we should strengthen blood pressure monitoring and health education of drug compliance in hypertensive patients and hypertensive cerebral infarction patients, so as to improve the effect of primary prevention and secondary prevention of stroke.

Objective To explore the prevalence of diabetes and hyperlipidemia in cerebral infraction patients with hypertension and look into the rates of awareness, treatment and control. Methods Blood pressure, blood glucose and blood lipids were measured in 238 cerebral infraction patients with hypertension. Meanwhile, the rate of awareness, treatment and control of hypertension, diabetes and hyperlipidemia were investigated by questionnaire. Results Among 79.41％of the patients had abnormal blood pressure and cerebral infaction on admission, the rates of awareness , treatment and control of hypertension were 74.79％, 67.23％, 20.59％. 10.11％of them never took antihypertensive drugs in spite of their awareness of hypertension. 32.35％ of the patients were combined with diabetes, the rates of awareness, treatment and control were 79.22％, 62.34％, 12.99％respectively, and among them 21.31％never tookantidiabetic drugs in spite of awareness of diabetes. 81.51％ of the patients were combined with hyperlipidemia, the rates of awareness, treatment and control were 23.20％, 6.70％, 1.55％respectively, and among them 71.11％never took lipid-lowering drugs with awareness of high blood lipid. Conclusions 79.41％ of the incidence of cerebral infraction was related to abnormal blood pressure. 32.35％cerebral infarction patients with hyperlipdemioa are complicated with hypertension diabetes;81.51％are complicated with 28.57％cerebral infraction patients with hypertension were complicated with diabetes and hyperlipidemia as well, but the rate of awareness, treatment and control were relatively low. In order to improve the secondary prevention, we should pay more attention to the stroke risk factors, and help make the individualized medicine-taking plan to improve the control rate.

Objective To assess the effect of radical laparoscopy-assisted gastrectomy (LG) for patients with chronic obstructive pulmonary disease (COPD). Methods Clinical data of 340 gastric cancer patients with COPD undergoing radical gastrectomy with lymphadenectomy at Southwest Hospital, Third Military Medical University between January 2010 and October 2013 were analyzed retrospectively. The clinical outcomes for the 262 patients with COPD who underwent LG (LG group) were compared with those of 78 patients with COPD who underwent open gastrectomy (OG group). During LG, pneumoperitoneum was maintained at an insuffiation pressure of 8 mmHg to 10 mmHg. The primary endpoint was postoperative pulmonary complication (PPC). To predict factors related to PPC, univariate and multivariate logistic analyses were carried out. Results Intraoperative blood loss was significantly less in the LG group [(131.2±14.7) ml] than in the OG group [(246.7±49.0) ml;t=-13.445, P=0.000], but operation time was significantly longer [(220.4±19.1) min vs. (194.2±31.5) min;t=6.877, P=0.000]. The findings showed PPC to be significantly less frequent in the LG group(5.3%,14/262) than in the OG group (15.4%, 12/78)( X2=8.581, P=0.003). The severity of COPD was independent risk factor for PPC(P=0.031, HR=1.456, 95%CI:1.306-1.789). No independent predictor of PPCs was found in type of operative approach (open vs laparoscopic; P=0.126). Conclusion The LG procedure with insuffiation pressure of pneumoperitoneum is tolerated for gastric cancer patients with mild or moderate COPD.

Objective To assess the effect of radical laparoscopy-assisted gastrectomy (LG) for patients with chronic obstructive pulmonary disease (COPD). Methods Clinical data of 340 gastric cancer patients with COPD undergoing radical gastrectomy with lymphadenectomy at Southwest Hospital, Third Military Medical University between January 2010 and October 2013 were analyzed retrospectively. The clinical outcomes for the 262 patients with COPD who underwent LG (LG group) were compared with those of 78 patients with COPD who underwent open gastrectomy (OG group). During LG, pneumoperitoneum was maintained at an insuffiation pressure of 8 mmHg to 10 mmHg. The primary endpoint was postoperative pulmonary complication (PPC). To predict factors related to PPC, univariate and multivariate logistic analyses were carried out. Results Intraoperative blood loss was significantly less in the LG group [(131.2±14.7) ml] than in the OG group [(246.7±49.0) ml;t=-13.445, P=0.000], but operation time was significantly longer [(220.4±19.1) min vs. (194.2±31.5) min;t=6.877, P=0.000]. The findings showed PPC to be significantly less frequent in the LG group(5.3%,14/262) than in the OG group (15.4%, 12/78)( X2=8.581, P=0.003). The severity of COPD was independent risk factor for PPC(P=0.031, HR=1.456, 95%CI:1.306-1.789). No independent predictor of PPCs was found in type of operative approach (open vs laparoscopic; P=0.126). Conclusion The LG procedure with insuffiation pressure of pneumoperitoneum is tolerated for gastric cancer patients with mild or moderate COPD.