0.05).Both femur bone lengths in 3.2mm group were shorter than those in the 1.5 mm and 2.2 mm groups.No abnormalities of cartilage cells were observed,without obvious histological evidence of inflammation;only nonspecific foreign body reaction and macrophage infiltration were noticed.Conclusion: PDLLA rod itself does not cause any disturbance to the development of the epiphyseal plate.The growth disturbance of epiphyseal plate depends on the area of injured epiphyseal plate;a injured area over 7% of epiphyseal plate may cause the growth disturbance of epiphyseal plate.

Objective To observe the effects of substance P (SP), NK1 receptor antagonist and nitric oxide synthase (NOS) inhibitors on the secretion of nitric oxide (NO) and expression of inducible NOS (iNOS) by immortalized human keratinocyte line HaCaT. Methods The NO level in supernatant of cultured HaCaT cells was measured by nitrate reductase assay after treatment with different concentrations (10-9 to 10-6 mol/L) of SP, or the combination of SP (10-8 mol/L) and spantide (3×10-7 mol/L), aminoguanidine (10-7 mol/L), 7-nitroindazole (10-6 mol/L) or L-NAME (10-5 mol/L) for various durations. Reverse transcription-PCR was performed to measure the expression of iNOS mRNA in HaCaT cells incubated with SP of 10-8 mol/L for 1, 24 and 48 hours. Results The SP of 10-9 to 10-6 mol/L significantly induced the production of NO by HaCaT cells, and the highest level of NO was observed in HaCaT cells treated with SP of 10-8 mol/L. The synthesis of NO by HaCaT cells induced by SP was inhibited by Spantide of 3 × 10~7 mol/L at all time points (30 minutes, 1, 3, 6, 12, 24 hours, all P< 0.01), by L-NAME of 10-5 mol/L at 3 time points (30 minutes, 1, 24 hours) and by 7-nitroin-dazole of 10-6 mol/L at 2 time points (30 minutes, 1 hour, both P< 0.05), but not by aminoguanidine of 10-7 mol/L at any time point (all P > 0.05). After treatment with SP of 10-8 mol/L, the relative mRNA expression of iNOS was 0.199 ± 0.018 and 0.516 ± 0.030 at 24 and 48 hours, respectively, and there was a statistical difference between the two time points (P < 0.01). Conclusions SP can reinforce the secretion of NO by HaCaT cells via NK1 receptor activation, but iNOS is unlikely to be the primary origin of NO secreted by HaCaT cells induced by SP.

Objective:To investigate the correlation between hyperreflective dots (HRD) and lipid levels and systemic inflammatory factors in patients with branch retinal vein occlusion (BRVO) or central retinal vein occlusion (CRVO).Methods:A cross-sectional clinical study. From December 2016 to June 2020, 118 eyes of 118 patients with retinal vein occlusion diagnosed in the Department of Ophthalmology, Central Theater Command Hospital of People's Liberation Army were included in the study. Among them, 67 cases of BRVO and 51 cases of CRVO were divided into CRVO group and BRVO group accordingly. Peripheral venous blood was drawn from the patients within 3 days after the eye examination to detect the percentage of neutrophils, monocytes, hypersensitive C-reactive protein (CRP), total cholesterol, triglyceride, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, and lipoprotein(a). The ratio of monocytes to high-density lipoprotein (MHR) was also calculated. The 3D OCT-2000 instrument from Topcon (Japan) was used to measure the central retinal thickness (CRT) and the numbers of HRD. According to the different distribution position, HRD is divided into inner retina HRD, outer retina HRD, and total retina HRD.The independent sample t test was used to compare the continuous variables of the two groups, and the χ2 test was used to compare the rates. The correlation between HRD counts and blood lipid levels and peripheral blood inflammation indicators in patients with different types of RVO was analyzed by Spearman correlation analysis. Results:The average age of patients in the BRVO group and CRVO group were 60.1±9.5 and 53.6±15.7 years, respectively; the prevalence of hypertension was 53.7% (36/67) and 24.5% (12/51), respectively. Comparison of age ( t=2.634) and prevalence of hypertension ( χ2=11.298) between the two groups showed statistically significant differences ( P<0.05). Gender ( χ2=2.000), course of disease ( t=-1.101), prevalence of diabetes ( χ2=1.315), eye category ( χ2=1.742), baseline visual acuity ( t=1.792), intraocular pressure ( t=0.708), CRT ( t=1.318), and peripheral blood include the percentage of neutrophils, the absolute number of monocytes, CRP, total cholesterol, triglycerides, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, lipoprotein(a), MHR ( t=-0.559, 1.126, 0.579, 1.299, -0.134, 0.556, 1.230, -0.267, 0.483), the difference was not statistically significant. Correlation analysis showed that the HRD counts in the outer retina of BRVO patients were positively correlated with total cholesterol ( r=0.289, P=0.036); the HRD in the inner retina and total HRD counts of CRVO patients were positively correlated with CRP ( r=0.406, 0.343; P=0.004, 0.014). There was no correlation between HRD counts and percentage of neutrophils, absolute number of monocytes, triglycerides, high-density lipoprotein, low-density lipoprotein, lipoprotein(a), and MHR ( P>0.05). Conclusion:The number of HRD is related to the blood lipid level in BRVO patients and CRP (an inflammatory index) in CRVO patients.

ObjectiveTo make sure the factors of influencing supply and utilization rehabilitation service of hospitals in Beijing.MethodsFive grade A hospitals in different districts in Beijing were surveyed to realize the condition and factors of influencing supply and utilization of rehabilitation service in polyclinics in Beijing and make sure the developing situation of departments of rehabilitation medicine, and its restriction factors in their hospitals.ResultsThe departments of rehabilitation medicine in the five hospitals had not reached to requirement of administer criterion to comprehensive hospitals, issued by Ministry of Health. The factors of influencing supply and utilization of rehabilitation service in polyclinics in Beijing included: discordant cooperation between rehabilitation section and other sections in hospitals; leaders of hospitals and clinical personnel not understanding the importance of rehabilitation early intervention much; patients and their family not understanding the special curative effect to prevent and treat disability of rehabilitation; the application for reimbursement limitation to the fee for patients to accept rehabilitation treatment and/or stay in rehabilitation section in hospitalization insurance and plan as a whole, and so on.ConclusionThe factors above limit the further development of rehabilitation service of polyclinics in Beijing. Effective measures should be taken and correlative policies should be established in order to promote the rehabilitation service in Beijing.

e tissue and myocardium, as well as myocardial uhrastructure were well-improved; the gene expressions of PPAR-α and GLUT4 were raised in APSgroup. APS may be partially effective in treating diabetic cardiomyopathy.

Objective To investigate the effect of docetaxel combined capecitabine chemotherapy and psychological intervention after radical mastectomy. Methods 80 cases of radical mastectomy for breast cancer treated in our hospital from January 2015 to January 2017 were treated with docetaxel combined with capecitabine chemotherapy. According to different nursing methods, the patients were divided into 2 groups. The observation group was treated with psychological nursing, while the control group received routine nursing care. The anxiety and depression scores in two groups before and after nursing were observed and compared. Results There were no significant difference in the scores of anxiety and depression between the two groups before and after treatment. After the intervention group, patients in observation group were significantly improved, and better than the control group patients; The nursing satisfaction rate in the observation group was 97.5%,which was significantly higher than that in the control group (72.5%) (P<0.05). Conclusion After radical mastectomy of breast cancer with docetaxel combined with capecitabine chemotherapy and psychological clinical observation of dry pre found in breast cancer resection and chemotherapy as the basis, to patients with psychological intervention can improve the clinical situation of patients, promote their mental status improved, improve nursing satisfaction rate of patients, so it is worthy of reference.

Objective To investigate the corresponds between NF-κB p65 activation and k-ras mutations.Methods NF-κB p65 activation was analyzed by immunochemistry in 167 colorectal cancer specimens in which the k-ras mutation status was confirmed.Resluts Among 167 colorectal cancer specimens screened,59 (35.3 ％) had k-ras mutations and 63 (37.7 ％) had NF-κB p65 activation.k-ras mutations and NF-κB p65 nuclear expression were no significant difference in different sex,age,ECOG score,pathological types,degrees of pathological differentiation,TNM stage,and metastases on lymph nodes (P＞ 0.05).The positive nuclear expression rate of NF-κB p65 was 50.8 ％ (30/59) in specimens with k-ras mutations and 30.6 ％ (33/108) in specimens with wild type k-ras.There was obviously statistical difference between them (P =0.010).Conclusion NF-κB p65 activation in coloretal cancer was associated with k-ras mutations.

Objective:To observe the effect of large pushing Tianheshui manipulation intervention on the body temperature of young rabbits with endotoxin-induced fever and discuss its antipyretic mechanism.Methods:Thirty-two young rabbits meeting the standards were selected from 40 ordinary young male New Zealand rabbits after being adapted for 7 d,and randomly divided into a normal group,a model group,a large pushing Tianheshui group,and an ibuprofen group according to the random number table method,with 8 rabbits in each group.Rabbits in the model group,the large pushing Tianheshui group,and the ibuprofen group were subjected to preparing the endotoxin-induced fever model by intravenous lipopolysaccharide from the marginal ear vein.Rabbits in the large pushing Tianheshui group received Tuina(Chinese therapeutic massage)manipulation intervention 1.5 h and 2.5 h after modeling,respectively.Rabbits in the ibuprofen group were intragastrically given ibuprofen suspension 1.5 h after modeling.The dynamic changes in body temperature were observed for the young rabbits after fever modeling.Enzyme-linked immunosorbent assay was used to determine the content changes in positive mediators of hypothalamic body temperature,including prostaglandin(PG)E2 and cyclic adenosine monophosphate(cAMP),as well as negative mediators of hypothalamic body temperature,including arginine vasopressin(AVP)and α-melanocyte stimulating hormone(α-MSH).Results:The body temperature of the young rabbits in the model group was significantly higher than that in the normal group at 0.5-4.0 h,5.0 h,and 5.5 h after modeling(P＜0.01),showing two obvious fever peaks in the model group at 1.5 h and 3.0 h after modeling,respectively,with the highest peak at 1.5 h.Compared with the model group,body temperatures of the large pushing Tianheshui group and the ibuprofen group decreased significantly after 0.5 h of intervention(P＜0.05).Compared with the normal group,the contents of PGE2 and cAMP were significantly increased(P＜0.05),and the contents of AVP and α-MSH were significantly decreased(P＜0.01)in the hypothalamus of the model group.Compared with the model group,the contents of PGE2 and cAMP were significantly decreased(P＜0.01),and the levels of AVP and α-MSH were significantly increased(P＜0.01)in the hypothalamus in the large pushing Tianheshui group and the ibuprofen group.There were no significant differences in the PGE2,cAMP,AVP,and α-MSH contents in the hypothalamus between the ibuprofen group and the large pushing Tianheshui group(P＞0.05).Conclusion:Large pushing Tianheshui manipulation has a significant antipyretic effect on endotoxin-induced fever in young rabbits.The mechanism may be related to inhibiting the positive regulators(PGE2 and cAMP)and promoting the negative regulators(AVP and α-MSH)of hypothalamic control of body temperature.

Objective:To observe the effects of liver-soothing spirit-regulating acupuncture on the behaviors and expression levels of 5-hydroxytryptamine receptor 1A(5-HT1AR)and 5-hydroxytryptamine receptor 2A(5-HT2AR)in the hippocampus of insomnia rats due to liver Qi stagnation. Methods:Ten of the 70 Wistar rats were randomly selected as the blank group,and the remaining rats were subjected to preparing the insomnia model due to liver Qi stagnation by the chronic tail clamping stimulation combined with intraperitoneal injection of para-chlorophenyl alanine.Fifty successful model rats were randomly divided into a model group,a grasp group,a Western medicine group,an acupuncture group,and a sham acupuncture group,with 10 rats in each group.Rats in the grasp group were grabbed in the same way as those in the acupuncture group.Rats in the Western medicine group were given estazolam solution by intragastric administration.Rats in the acupuncture group received liver-soothing spirit-regulating acupuncture at Baihui(GV20),Neiguan(PC6),Shenmen(HT7),and Taichong(LR3);rats in the sham acupuncture group received acupuncture at 4 non-meridian non-point spots.All groups were treated once a day for 7 d.Pentobarbital sleep test was used to evaluate the sleep latency(SL)and sleep time(ST)of rats in each group after 7 d of intervention;the proportion of the number of entry into the open arms(OE％)and the proportion of the residence time in the open arms(OT％)were monitored by elevated plus maze test(EPMT);the open field test(OFT)was used to monitor the numbers of standing upright,horizontal cross-grid,and fecal grains in rats.The expression levels of 5-HT1AR and 5-HT2AR in rat hippocampus were detected by Western blotting. Results:The body mass gain,ST,OE％,OT％,upright standing times,horizontal cross-grid times,and the 5-HT1AR expression level in the hippocampus were significantly decreased(P<0.01),while the SL and 5-HT2AR expression level in the hippocampus were significantly increased(P<0.01)in the model group compared with the blank group.After intervention,the body mass,ST,OT％,OE％,upright standing times,horizontal cross-grid times,and hippocampal 5-HT1AR expression level were significantly increased(P<0.01 or P<0.05),while the SL and hippocampal 5-HT2AR expression level were significantly decreased(P<0.01 or P<0.05)in the acupuncture group and the Western medicine group compared with the grasp group.Compared with the Western medicine group,OT％,SL,and hippocampal 5-HT1AR expression level were significantly increased in the acupuncture group(P<0.05).The body mass,OT％,OE％,ST,upright standing times,horizontal cross-grid times,and the 5-HT1AR expression level in the hippocampus were significantly increased(P<0.01),while the SL and 5-HT2AR expression level in the hippocampus were significantly decreased(P<0.01)in the acupuncture group compared with the sham acupuncture group. Conclusion:Liver-soothing spirit-regulating acupuncture can not only improve sleep but also improve the abnormal behaviors and mood of insomnia rats due to liver Qi stagnation,and the improvement effect on abnormal mood is better than that of Western medicine.The mechanism may be related to the regulation of 5-HT1AR and 5-HT2AR

Objective To assess the diagnostic predictive value of Wells score and modified Geneva score for acute pulmonary embolism by prospective case series and to explore a more suitable scoring system for Chinese population.Methods All the patients suspected of pulmonary embolism (PE) and received CT pulmonary angiography (CTPA) were enrolled consecutively in Fuxing Hospital,Capital Medical University,China,from June 2009 to August 2011.Before CTPA test or on condition that test results were unknown,clinical scoring was assessed prospectively by the Wells score and the modified Geneva score.The probability of PE in each patient was assessed and the patients were divided into low,moderate and high probability groups according to the clinical scores.The result of CTPA was used as the diagnostic gold standard for PE.Diagnostic accuracy in each group was analyzed.The predictive accuracy of both scores was compared by AUCROC curve.Results A total of 139 patients met our enrollment criteria and 117 eligible patients entered our study at last.PE was diagnosed in 47 patients by CTPA with an overall prevalence of 40.2％.Prevalence of PE in the low,moderate and high pretest probability groups assessed by the Wells score and by the simplified modified Geneva score were 7.1％ (3/42),42.9％ (21/49),88.5％ (23/26)and 10.0％ (3/30),48.1％ (37/77),7/10,respectively.AUCROC curves for the Wells score and the simplified modified Geneva score were 0.872 ( 95％ CI 0.810-0.933 ) and 0.734 ( 95％ CI 0.643-0.825 )respectively,with a significant difference ( P =0.005 ).Conclusion The Wells score is more accurate for clinical predicting acute PE than the modified Geneva score.