Lymph node metastasis of malignant tumor is a complex pathological process closely related to tumor lymphangiogenesis. With tumor growth, some growth factors of lymphatic vessels are secreted and new lymphatic vessels are formed around or inside the tumor. Then, the tumor cells invade the lymphatic vessels, follow the lymph flow into every lymph node station, and gradually form the lymph node metastasis. Normal cells are in a relatively stable internal environment. Cell proliferation, differentiation, and apoptosis, as well as secretion and expression of related factors, occur in accordance with the normal process. However, the balance is broken with tumor growth and progression. A gradual formation of a suitable external environment for the tumor growth, namely, the tumor microenvironment, occurs. And the pathological and physiological characteristics of tumor microenvironment, which contains numerous lymphangiogenic growth factors and inflammatory conditions, hypoxia, acidic microenvironment, and high interstitial fluid pressure, promote tumor lymphangiogenesis and formation of tumor lymph node metastasis.

Objective To explore the effects of combination of traditional Chinese medicine (TCM)and western medicine on a variety of allergen induced severe perennial seasonal allergic rhinitis patients who were treated invalidly with antihistamines and intranasal flixonase for more than two years.Methods 16 patients with moderate to severe allergic rhinitis who were uncontrolled with antihistamines and intranasal flixonase for one week were treated by combination with TCM of Xin-Yi-Qing-fei San or Gyokubeifu-san mixed formula for two weeks.Nasal symptoms,its effects on the quality of daily life,and telephone follow-up half a year later were evaluated.Mini Rhinoconjunctivitis Quality of Life Questionnaire (Mini-RQLQ) and Nocturnal Rhinoconjunctivitis Quality of Life Questionnaire (NRQLQ) were used to evaluate the quality of life.Results After 2 weeks combination-treatment,the nasal symptoms of congestion,rhinorrhea,sneezing,nasal itching,and nasal obstruction were significantly improved compared with combination-before [(52.0± 11.1)％,(69.1±5.3)％,(68.3±12.3)％,(55.5±10.0)％to (10.9±2.4)％,(8.9±3.2)％,(12.5±4.3)％,(13.2±5.3)％,respectively].The before and after treatment of nasal function of nasal minimum cross-sectional area (MCA),nasal cavity volume (V5) and nasal airway resistance (R75 and R150) respectively were (0.58±0.12)cm2,(0.38 ± 0.23) Pa/cm3 · s-1,(0.44 ± 0.32) Pa/cm3 · s-1,(3.50 ± 2.33) cm2 to (0.48 ± 0.23) cm2,(0.31 ±0.33) Pa/cm3 · s-1,(0.31 ±0.37)Pa/cm3 · s-1,(2.24± 1.03) cm2 (P＜0.01).In addition,findings of patients with nasal symptoms by half year follow-up were significantly better than those of before.Conclusion The interventionof TCM can effectively control the perennial and seasonal severe symptoms of patients with AR,and improve the quality of life of patients.

Objective To observe the Clinical study on the acupuncture ot zhibi 3 in the treatment of non-allergic rhinitis.Methods 20 individuals over 15 years old with non-allgergic rhinitis were prospectively recruited from rhinology clinic and ward of Beijing TongRen Hospital from December 2008 to August 2009.Acupuncture points of treat nasal 3 and the compatibility of Fengchi,Hegu were performed by once a week for 7 weeks.The changes of the total nasal symptom score (TNSS) and the Mini-Rhinoconjunctivitis Quality-of-Life Questionnaire (Mini-RQLQ) were observed at baseline and recertification every week.Results After 7 weeks treatment,we found the fourth week of score in fatigue (0.5±0.2; 2.6±1.2,respectively),embarrassed (1.0±0.3; 3.7-0.3,respectively),sleep (0.8±0.1; 4.1±0.9,respectively)、the quality of life (1.0±0.4; 3.8±0.7,respectively),congestion (0.6±0.4; 2.6± 1.0,respectively),rhinorrhea (1.2±0.5; 4.4±0.7,respectively),sneezing (1.6±0.5; 5.0±0.6,respectively),nasal itching (1.7±0.6; 4.4±0.9,respectively) were significantly improved over 75％ (15/20) compared with the baseline (P＜0.05).However,at the sixth week,congestion,rhinorrhea,sneezing were recurring,especially rhinorrhea,but the benefit effects of acupuncture were more than 55％ comparing with baseline.Contusion Acupuncture of zhibi 3,and Fengchi,Hegu may have the effective effects on non-allergic rhinitis.

Objective To evaluate uterine cavity of the patients who accept the treatment in vitro fertilization‐embryo trans‐fer(IVF‐ET)and determine the clinical value of hysteroscopy for the patients .Methods Between January 2012 and May 2014 ,539 cases who accepted the IVF‐ET and hysteroscopy ,were divided into two grops ,group A(258 patients examinated before IVF‐ET cycle) and group B(281 patients after the IVF‐ET failure) ,and retrospective analysis was performed for their uterine cavity and cervix canal data .Results The total incidence of abnormal hysteroscopic findings was 49 .54% ,and group B was significantly high‐er than that in group A(54 .10% vs .44 .57% ,χ2 =4 .5 ;P=0 .043) .The percent of abnormal cervix canal was 18 .74% ,and there wasn′t significant difference between the two groups .Conclusion The incidence of abnormal hysteroscopic findings in IVF‐ET is higher than that in normal patients ,so hysteroscopy has an important clinical value for diagnosis and evalution ,especially for pa‐tients with failure of IVF‐ET .

Objective: To explore the effects of different concentrations of glucose solution on the survival of Aedes albopictus and Culex pipiens pallens larvae, the attraction to mosquitoes and egg-laying behaviors, so as to provide the reference for developing mosquito control technology based on sugar bait. Methods: White porcelain bowls were filled with 100 mL of 3%, 5%, 8%, 10% and 15% glucose solutions. Ten of fourth instar larvae of Aedes albopictus or Culex pipiens pallens were added to each bowl, and the survival of larvae was recorded after 2, 4, 6, 24, 48 and 72 hours. Egg-laying cups containing 5%, 8% and 15% glucose solution were put in mosquito cages containing fully blooded female mosquitoes of Aedes albopictus and Culex pipiens pallens (50 mosquitoes each), and the total number of eggs laid in 72 hours was observed. The analogous site room was filled with fully blooded and starved female mosquitoes of Aedes albopictus and Culex pipiens pallens (100 mosquitoes each), and simple mosquito control buckets containing 5% and 8% glucose solution and black sticky insect plates. The number of mosquitoes and eggs was observed after 6 days. All the above experiments were repeated 3 times using dechlorinated water as the control. Results: The 72 hour corrected mortality rates of Aedes albopictus and Culex pipiens pallens larvae gradually increased with the increase of glucose concentration. The glucose solution with 5% and higher concentrations was not suitable for mosquito larvae to survive. The attraction of egg-laying behaviors to Aedes albopictus and Culex pipiens pallens gradually decreased with the increase of glucose concentration. The effects were similar between 5% and 8% glucose solution, with the averages of 686.67 and 682.33 eggs for Aedes albopictus, and 3.00 and 2.33 egg rafts for Culex pipiens pallens. In analogous site room, there were 93.33, 105.00 and 130.33 adult mosquitoes captured on average in the control group, 5% and 8% glucose solution groups, respectively, with 8% glucose solution group more attractive to adult mosquitoes than the control group (F=3.283, P=0.030); there were 70.33, 55.33 and 63.00 Aedes albopictus eggs (eggs counts+larvae counts) on average, respectively, with statistically significant differences among the three groups (H=6.761, P=0.034). Conclusion Glucose solution with concentration of 5% or higher can effectively inhibit the survival of Aedes albopictus and Culex pipiens pallens larvae, and attractive to adult mosquitoes and egg-laying behavoirs.

Objective:To evaluate the relationship between immunoglobulin heavy chain-binding protein (BIP) and Na v1.8 in peripheral nerve in a rat model of neuropathic pain. Methods:Forty-four SPF healthy male Sprague-Dawley rats, weighing 210-260 g, were used in this study.Neuropathic pain was induced by chronic constriction injury (CCI) in anesthetized rats.The experiment was performed in two parts.Experiment Ⅰ Twenty rats were divided into 2 groups ( n=10 each) using a random number table method: sham operation group (group Sham) and group CCI.Experiment Ⅱ Twenty-four rats were divided into 3 groups ( n=8 each) using a random number table method: sham operation group (group Sham), CCI plus normal saline group (group CCI+ NS) and CCI plus BIP inhibitor HA15 group (group CCI+ H). Starting from 4th day after surgery, 0.9% normal saline 1 ml was intraperitoneally injected in group CCI+ NS, and HA15 0.7 mg/kg was intraperitoneally injected in group H, once a day for 3 consecutive days.The mechanical paw withdrawal threshold (MWT) and thermal paw withdrawal latency (TWL) were measured at 1 day before surgery and 3, 5 and 7 days after surgery (T 0-T 4), and the expression of BIP and Na v1.8 in dorsal root ganglion (DRG) and sciatic nerve was detected by Western blot on 7th day after completion of behavioral testing in two groups.The expression and colocalization of BIP and Na v1.8 in DRG and sciatic nerve were determined by immunofluorescence on 7th day after completion of behavioral testing in group Ⅰ, and the interaction between BIP and Na v1.8 was evaluated by co-immuno-precipitation. Results:Experiment Ⅰ Compared with group Sham, the MWT was significantly decreased, and TWL was shortened at T 1-T 4, the expression of Na v1.8 in DRG was down-regulated, the expression of BIP was up-regulated, and the expression of Na v1.8 and BIP in sciatic nerve was up-regulated in group CCI ( P<0.05), and BIP and Na v1.8 on the sciatic nerve were co-localized, BIP could co-precipitate Na v1.8 from DRG, and Na v1.8 could also coprecipitate BIP in group CCI.Experiment Ⅱ Compared with group Sham, the MWT was significantly decreased, and TWL was shortened at T 1-T 4, the expression of Na v1.8 in DRG was down-regulated, the expression of BIP was up-regulated, and the expression of Na v1.8 and BIP in sciatic nerve was up-regulated in group CCI+ NS ( P<0.05). Compared with group CCI+ NS, the MWT was significantly increased, and TWL was prolonged at T 3, 4, and the expression of Na v1.8 in DRG was down-regulated in group CCI+ H ( P<0.05). Conclusion:BIP can mediate the redistribution of Na v1.8 in peripheral nerve and is involved in the pathophysiological mechanism of neuropathic pain in rats.

Objective: To explore the effect of working memory intervention training on working memory and literacy of children with developmental dyslexia,so as to provide a preference for practice of the trianing of working memory among children with dyslexia. Methods: A total of 32 children with dyslexia of grade 3-5 in a primary school in Guiyang were randomly divided into two groups: the study group (n=16) and the control group (n=16),and the software of training exercises of working memory was applied to conduct interventional trainings of different durations to 2 gruops of children. Results: Through the intervention training of working memory, the scores of literacy and working memory tasks in the study group (2 217.88±252.32, 105.13±7.68) were significantly higher than those in the control group (1 907.69 ± 545.15, 96.50 ± 11.04) (t=2.06, 2.56, P<0.05). Conclusion The working memory ability of children with dyslexia can be improved by working memory intervention training for a certain period of time. The intervention effect is not only significant in the trained working memory task, but also can be extended to other untrained contents such as literacy.

[Objective]To evaluate the knowledge,attitude and practice(KAP)of medication use and safety among the patients with acquired immune deficiency syndrome(AIDS)in a 3A-grade hospital of Guangzhou city,and to provide scientific basis for AIDS prevention and treatment.[Methods]A questionnaire survey was conducted among AIDS patients aged 18 years and above in our hospital to investigate their KAP regarding medication use and safety.[Results]A total of 549 questionnaires were collected,of which 503 were valid,with an effective recovery rate of 91.6%.The average scores of KAP were(14.58±8.49),(25.21±6.92)and(47.58±3.33),respectively,with the scoring rates of 36.46%,63.02%,and 95.16%,respectively.There were statistically significant differences(P＜0.05)in knowledge scores among people with different ages,education levels and occupations.Multiple linear regression showed that education level and medical insurance status had most significant impact on knowledge scores(P<0.05).Significant differences were found in attitude scores among people with different education levels(P<0.05),as well as in practice scores among people with different occupations(P<0.05).Multiple linear regression revealed that age,occupation,knowledge score and attitude score had a significant impact on practice scores(P<0.05).Patients expected to receive pharmaceutical care services from the pharmacists via face-to-face communication,network platform and telephone consultation on medication knowledge such as adverse drug reactions and response measures,drug-drug interactions,missed medication and response measures,medication adherence measures,etc.[Conclusions]AIDS patients in this hospital have a good awareness of medication safety,but their knowledge of medication use needs improvement.Some bad habits may affect their compliance,resulting in safety hazards.Therefore,there is an urgent demand for pharmaceutical care services related to rational drug use.

Objective:To investigate the present situation of unintended pregnancy within two years postpartum and its influencing factors in China.Methods:Participants who delivered a live birth at 60 hospitals in 15 provinces in the eastern, central and western regions of China during July 2015 to June 2016 were interviewed by using structured questionnaire. Information on occurrence of unintended pregnancy within 2 years after delivery, postpartum contraceptive use, sexual resumption, breastfeeding, and women′s socio-demographic characteristics, and so on, were collected. Life-table analysis, cluster log-rank tests and a 2-level Cox regression model were used for data analysis.Results:A total of 18 045 postpartum women were investigated. The cumulative 1- and 2-year unintended pregnancy rates after delivery were 5.3% (95% CI: 4.5%－6.1%) and 13.1% (95% CI: 11.3%－14.8%), respectively. Cox regression model analysis showed that the risk of unintended pregnancy within 2 years postpartum were increased in younger women, ethnic minorities, women with abortion history, and those who had a vaginal delivery with short lactation time and late postpartum contraceptive initiation (all P<0.01). The risk of postpartum unintended pregnancy was not associated with geographic regions and hospitals where women gave a birth (all P>0.05). Conclusions:In China, the risk of unintended pregnancy within 2 years after delivery is relatively high. Service institutions and service providers should improve the quality of postpartum family planning services, promote the use of high effect contraceptive methods, and educate women to use a method at the time of their sexual resumption or even before.

Objective To evaluate the risk factors and sonographic findings of pregnancies complicated by placenta increta or placenta percreta. Methods Totally, 2219 cases were retrospectively analyzed from 20 tertiary hospitals in China from January 2011 to December 2015. The data were collected based on the original case records. All cases were divided into two groups, the placenta increta (PI) group (79.1％, 1755/2219) and the placenta percreta (PP) group (20.9％, 464/2219), according to the degree of placental implantation. The risk factors and sonographic findings of placenta increta or percreta were analyzed by uni-factor and logistic regression statistic methods. Results The risk factors associated with the degree of placental implantation were age, gravida, previous abortion or miscarriage, previous cesarean sections, and placenta previa (all P<0.05), especially, previous cesarean sections (χ2=157.961) and placenta previa (χ2=91.759). Sonographic findings could be used to predict the degree of placental invasion especially the boundaries between placenta and uterine serosa, the boundary between placenta and myometrium, the disruption of the placental-uterine wall interface and loss of the normal retroplacental hypoechoic zone(all P<0.01). Conclusions Previous cesarean sections and placenta previa are the main independent risk factors associated with the degree of placenta implantation. Ultrasound could be used to make a prenatal suggestive diagnosis of placenta accreta spectrum disorders.