Objective To explore the role of Th17 cells in the pathogenesis of asthma .Methods Peripheral blood was obtained from 10 patients with asthma(asthma group) and 10 healthy volunteers(control group) .RORγt mRNA expression of lymphocytes was measured by RT-PCR ,percentage of Th17 cell was detected by FCM ,IL-17 in plasma was examined by ELISA .Results RORγt mRNA level in asthma group(0 .46 ± 0 .07) was significantly higher than that in control group (0 .15 ± 0 .02) ,proportion of Th17 cell in asthma group(28 .53 ± 7 .20)% was significantly higher than that in control group(14 .72 ± 2 .33)% ,P<0 .01 .Com-pared with IL-17 level in control group(59 .68 ± 8 .85)pg/mL ,there was significant increase in asthma group(102 .31 ± 11 .45)pg/mL(P<0 .01) .Conclusion Th17 cell is associated with asthma ,and probably aggravating asthma condition through increasing in-flammation secreting IL-17 .

Objective To compare the effect of laminar flow bed in the prevention of hospital infections in patients with leukemia after chemotherapy. Method The Meta-analyses were done on Meta RevMan5.0 by retrieving the domestic databases from January 1999 to January 2014 to look into and compare the hospital infections in leukemic patients using laminar flow beds and common beds, including of the rate of hospital infection, duration of fever, days for antibiotic use, hospital stay. Results A total of 16 papers were included. The Meta analyses showed that the rate of hospital infection in the wards with laminar flow beds was significantly lower than that in the wards with common beds (RR=0.54,95%CI (0.47, 0.62), P<0.01). The fever duration, time for antibiotics use and hospital stay in patients in the wards with laminar flow beds were all significantly shorter than those in the patients in the wards with common beds [WMD=-3.64, 95%CI (-4.83,-2.46);WMD=-4.13, 95%CI (-5.95,-2.32)];WMD=-5.36, 95%CI (-7.52,-3.20);P<0.01,respectively)]. Conclusion Laminar flow beds are effective in preventing hospital infections among acute leukemic patients having undergone chemotherapy.

Objective To compare the effect of different body position and length of bed time after lumbar puncture on the postoperative headache.Methods Literatures were searched at home and abroad through the database,and provided comprehensive quantitative analysis to compare the effect of different body position and length of bed time after lumbar puncture on the postoperative headache by the Cochrane collaboration Meta-analysis.Results A total of 20 studies (3 514 patients) were included for Meta-analysis.Mter lumbar puncture for the low supine pillow and the pillow recumbent position,headache incidence rate had no significant difference between the two positions,combined odds ratio (OR) and 95％ confidence intervals were 0.87 (0.41-1.87)(P＞ 0.05);After lumbar puncture to stay in bed for a long time to rest (≥ 4 h) and short time in bed rest (＜1 h),headache incidence rate had no significant difference between the two different time,the combined odds ratio (OR) and 95％ confidence intervals were 0.77 (0.58-1.02)(P ＞ 0.05).Conclusions After lumbar puncture,the occurrence rate of headache is not increased after taking a low pillow lying position or a short time in bed rest (＜1 h).

A 27-year-old man presented with a 3-year history of persistent asymptomatic papules on the left chest and axirlary fossa. Multiple skin biopsies were performed and histopathology revealed mild acanthosis, extension of the dermal papilla, lichenoid lymphoid infiltrates in upper dermis. Some lymphoid cells migrated into the epidermis and formed Pautrier's microabscesses. Immunohistochemistry revealed that the infiltrating cells were positive for LCA, CD45RO, CD3, CD4 and CD8 (scattered), but negative for CD68 or CD30. Cutaneous laser confocal microscopy showed the shadow of scattered, oval or round, slightly refractive cells measuring 4-8 pm in diameter. A diagnosis of papular mycosis fungoides was made. The papules were softened with the lightening of lesional color after treatment with narrow-band ultraviolet B, topical fluticasone propionate cream and isotretinoin gel.

Objective To investigate the possible role of high mobility group box 1 protein (HMGB1) and its advanced gly‐cation end products receptor (RAGE) in the pathogenesis of systemic lupus erythematosus (SLE) .Methods The enzyme‐linked immunosorbent assay (ELISA) was used to determine the level of plasma HMGB1 in 52 cases of SLE (SLE group) and 40 healthy females undergoing physical examination (HC group) ,at the same time real time quantitative polymerase chain reaction (RT‐qPCR) was employed to detect the expression of HMGB1 and RAGE mRNA in peripheral blood mononuclear cells (PBMCs) .The correlation between plasma HMGB1 ,PBMCs HMGB1 and RAGE mRNA levels with clinical indicators was analyzed .Results The levels of plasma HMGB1 ,PBMCs HMGB1 mRNA in the SLE group were significantly higher than those in the HC group ,the differences were statistically significant (P< 0 .05) ,while the level of PBMCs RAGE mRNA had no statistical difference (P>0 .05);the Spearman correlation analysis showed that the level of plasma HMGB1 was positively correlated with antinuclear anti‐bodies titers and SLEDAI score in the SLE patients (P<0 .01) ,while had no obvious correlation with the other clinical and labora‐tory indicators(P>0 .05);the HMGB1 mRNA expression level was positively correlated with the RAGE mRNA expression level and SLEDAI scores(P<0 .01 ,P<0 .05) ,and had no obvious correlation with other clinical and laboratory indicators (P>0 .05) . Conclusion The abnormal expression of plasma HMGB1 and PBMCs HMGB1 mRNA in SLE patients prompts that which might be involved in the occurrence and development of SLE ,might participate in the immune and inflammatory regulation of SLE .

Objective:To investigate whether radiotherapy should be delivered before the application of immune checkpoint inhibitor PD-1 in patients with advanced non-small cell lung cancer (NSCLC) and evaluate the effect of previous radiotherapy on the efficacy and pulmonary toxicity of PD-1 inhibitor.Methods:Clinical data of patients with stage Ⅳ NSCLC who received immunotherapy in Henan Cancer Hospital from March 2015 to September 2019 were retrospectively analyzed. The baseline data of patients, the status of radiotherapy and immunotherapy and the pulmonary toxicity were collected. According to whether radiotherapy was given before PD-1 inhibitor application, all patients were divided into the previous radiotherapy and non-radiotherapy groups. Survival analysis was performed by Kaplan- Meier method. Results:A total of 90 patients were enrolled including 39 cases in the previous radiotherapy group and 51 cases in the non-radiotherapy group. The median follow-up time was 22.9 months. The median progression-free survival (mPFS) in the previous radiotherapy group was 7.5 months (95% CI 5.4-9.5 months), significantly longer compared with 4.1 months (95% CI 3.1-5.1 months) in the non-radiotherapy group ( P=0.003). The median overall survival (mOS) significantly differed between two groups[15.2 months (95% CI 12.3-18.1 months) vs. 9.3 months (95% CI 6.1-12.5 months)]( P=0.040). The incidence of pulmonary toxicity showed no significant difference between two groups ( P=0.154). Conclusions:Patients with stage Ⅳ NSCLC patients in the previous radiotherapy group obtain significantly better mPFS and mOS and similar pulmonary toxicity compared with their counterparts in the non-radiotherapy group. Nevertheless, the findings remain to be validated by subsequent investigations with larger sample size.

Objective? To evaluate the effect of biofeedback on bowel function among rectal cancer patients with chemoradiotherapy and temporary enterostomy. Methods? This study was designed as a randomized controlled trial. The patients with low and middle rectal cancer in a Cancer Hospital of Guangzhou from June 2015 to December 2016 were randomly divided into pelvic floor muscle exercise group (control group, n=36) and biofeedback training group (intervention group, n=35). The intestinal function questionnaire of the Chinese version of Memorial Sloan-Kettering Cancer Cente(r MSKCC) was used to longitudinally track and compare the intestinal function of the two groups for 16 months and 5 times in total. Results? The total score of MSKCC, frequency and urgency of defecation and defecation sensory disturbance in intervention group were higher than those in control group at 4 days and 3 months after stoma inclusion operation, and the differences were statistically significant (P＜ 0.05). Conclusions? Biofeedback training can improve the intestinal function of patients with middle and low rectal cancer, promote their recovery, and prevent intestinal and anal dysfunction of patients with middle and low rectal cancer.

Objective:To reveal the research focus of doctoral dissertation of China Academy of Chinese Medical Sciences by information visualization.Methods:Based on the relevant documents from January 1st, 2008 to December 31st, 2018 retrieved by CNKI, through the methods of CiteSpace high-frequency word visualization analysis and co word clustering, the research focus was explored in three time segments, and comparative analysis was carried out.Results:A total of 1 918 literatures were included. The methodology research based on Traditional Chinese Medicine (TCM) syndromes, the application research of data mining technology, and the clinical research of TCM were identified by knowledge atlas as the research hotspots of academic dissertation of China Academy of Chinese Medical Sciences from 2008 to 2018, with good continuity. The disease types of related researcheswere close to the clinical frontier, and the continuity of syndrome and treatment research of coronary heart disease were poor. The number of basic researches represented by TCM syndrome were always lower than that of clinical research. The diagnosis and treatment mode and modern research methods based on the combination of disease and syndrome and the combination of traditional Chinese and Western medicine were gradually deepening in the field of TCM.Conclusions:Interdisciplinary research is a hot topic in the dissertation research of the China Academy of Chinese Medical Sciences. The use of information visualization tools can provide reference for scientific and in-depth exploration of the research direction of TCM.

Objective:To evaluate the effects of brain-computer interface training on extremity function for stroke patients.Methods:Cochrane, EBSCO, PubMed, EMbase, Web of Science, JBI, MEDLINE, RNAO, Nursing Consult, CINAHL, CNKI, WanFang and VIP were searched to collect randomized controlled trials of brain-computer interface training on stroke patients, after quality evaluation and data extraction by two researchers, statistical processing was performed by RevMan5.3 software.Results:Twelve randomized controlled trials and 347 patients were included. The results showed that brain-computer interface training could improve the patients' limb motor function (mean difference value was 5.00, 95% confidence interval was 3.50-6.49, Z value was 6.55, P<0.01) and upper limb action function (mean difference value was 9.66, 95% confidence interval was 3.74-15.59, Z value was 3.20, P<0.01), enhanced the myodynamia (standardized mean difference was 0.91, 95% confidence interval was 0.49-1.32, Z value was 4.23, P<0.01) and activities of daily living (standardized mean difference was 0.84, 95% confidence interval was 0.42-1.26, Z value was 3.89, P<0.01], but had no significant effect on myospasm (mean difference value was -0.08, 95% confidence interval was -0.47-0.31, Z value was 0.39, P>0.05). Conclusions:Brain-computer interface training can improve limb motor function, action, myodynamia and activities of daily living for stroke patients, but have no significant effect on myospasm.

Objective Through factor analysis of the quantified syndrome information of 558 cases of kidney yang deficiency syndrome,the constructing feature of kidney yang deficiency syndrome was revealed,which provides clinical data support for the objectification,standardization and normalization of kidney Yang deficiency syndrome.Methods Firstly,the frequency analysis of symptoms,tongue and pulse signs of 558 patients with kidney Yang deficiency syndrome was carried out,and then the main syndrome information of the patients with kidney Yang deficiency syndrome was quantified.Finally,the common factors and their representative variables of kidney Yang deficiency syndrome were screened out through factor analysis,and the constructing feature of kidney Yang deficiency syndrome was analyzed combined with TCM syndrome knowledge.Results Eight common factors with eigenvalues greater than 1 were extracted by principal component analysis,and the cumulative contribution rate was 60.483%.After the factor rotation,the representative variables with the absolute value of load coefficient greater than 0.45 in each common factor were selected.The representative variables of F1 are afraid of cold and fond of warmth(0.947)and intolerance to cold(0.932).The representative variables of F2 are waist pain(0.754),waist and knee weakness(0.720)and cold in waist and knees(0.466).The representative variables of F3 are depression(0.749),insomnia(0.711)and diarrhoea(0.470).The representative variables of F4 are thin fur(0.819)and white fur(0.768).The representative variable of F5 are tinnitus and deafness(0.687),frequent nocturnal urination(0.591)and decreased libido(0.587).The representative variables of F6 are pulse sinking(0.766)and pulse weakness(0.736).The representative variables of F7 is thready pulse(0.942).The representative variable of F8 is pale tongue(0.961).External syndrome of disease location involved in these common factors are waist,bone,brain,ear,anterior Yin,posterior Yin and reproductive function.The disease nature involved in these common factors is deficiency and cold.Conclusion The basic constituent units of kidney Yang deficiency syndrome include disease location syndrome elements and disease nature syndrome elements.The disease location is kidney,and the abnormal changes of kidney location are mainly external symptoms of waist,bone,brain,ear,anterior Yin,posterior Yin and reproductive function.Its disease nature is deficiency and cold.Yang deficiency leads to external cold.Yang Qi deficiency can not warm the body surface resulting in the appearance of external cold syndrome.