BACKGROUND:During total hip arthroplasty, placement angle of acetabular prosthesis is significant for clinical curative effects. OBJECTIVE:To investigate the abduction angle and anteversion angle of acetabular prosthesis at different positions during total hip arthroplasty and related influential factors. METHODS:Thirty-five patients undergoing total hip arthroplasty were included in this study, containing 21 males and 14 females, at the age of 51-75 years old. Thesame patient at different positions underwent X-ray examination, including standing anteroposterior pelvis radiographic imaging, standing lateral radiographic imaging and supine anteroposterior pelvis radiographic imaging. Abduction angle and anteversion angle of acetabular prosthesis were measured. RESULTS AND CONCLUSION:(1) Abduction angle and anteversion angle at standing positionwere bigger than that at supine position (48.47°, 45.89°; 12.44°, 6.17°;P< 0.05). (2) The change in anteversion angle wasassociated with pelvic incidenceangleand pelvic tiltangle. The change in abduction angle was associated with pelvic obliquity. (3) The range of abduction angle (40±10)° and anteversion angle (15±10)° of acetabular prosthesis was identified as securityzone. (4) Results suggested that there were changes in acetabular abduction angle and anteversion angle between supine anteroposterior pelvis radiographic imaging and standing anteroposterior pelvis radiographic imaging after total hip arthroplasty. Acetabular angle was associated with pelvic obliquity, pelvic incidence and pelvic tilt.

OBJECTIVETo study the efficacy of community management model of bronchial asthma in children.

METHODThrough community outreach and clinic, 120 cases of children with asthma were enrolled from the 11 000 children aged 0 to 14 in Zhanlanlu area, and a community management model of asthma was established according to the Global Initiative for Asthma requirements combined with the actual situation of the community, both physicians and patients participated in case identification, file creation, and long-term standardized management. Through repeated medical education, the telephone hotline and interactive network of asthma among physicians, children and parents, a physician-patient relationship was established. The data of standardized medication, scheduled re-visit to the hospital, frequency of asthma attacks, antibiotic use, medical expenses, the loss of parents work hours etc. before and after the implementation of community management model were analyzed and compared.

RESULTAfter implementation of community management model, the use of systemic corticosteroids (19.4%), oral medication (31.6%) was significantly lower than those before implementation (68.3% and 90.0%) (χ(2) = 51.9, 41.1, P < 0.01), use of inhaled corticosteroids (76.5%) and oral leukotriene receptor antagonist (79.6%) was significantly higher compared with control and before management level (10.0%), χ(2) = 106.0, P < 0.01. The days of attacks of asthma (4.6 ± 2.3), the use of antibiotics (16.2 ± 6.1), (5.7 ± 2.9) and the cost of treatment significantly decreased. In 16 cases (13.3%) two-way referral was applied. In this study, the dropout rate was 18.3%, by telephone and network supervision of lost cases, re-education, made some children return to management, eventually the dropout rate was 9.2%.

CONCLUSIONEnrollment of children with bronchial asthma into community management model made the children adhere to the management regularly and a standardized management was achieved.

Adolescent ; Adrenal Cortex Hormones ; administration & dosage ; therapeutic use ; Anti-Asthmatic Agents ; administration & dosage ; therapeutic use ; Asthma ; drug therapy ; therapy ; Child ; Child Health Services ; methods ; organization & administration ; Child, Preschool ; Community Health Services ; methods ; organization & administration ; Community Networks ; Disease Management ; Drug Administration Schedule ; Female ; Humans ; Infant ; Infant, Newborn ; Male ; Patient Compliance ; Patient Education as Topic ; organization & administration ; Self Care

Objective To investigate the expression profile of long non - coding RNAs(lncRNAs) in acute kidney injury (AKI) rats upon astragaloside IV(AS - IV) treatment. Methods Eight male SD rats were selected and randomly divided into two groups. AKI model group(group 1):4 rats were subjected to ischemia - reperfusion(I/ R);AS - Ⅳ pretreatment group (group 2):4 rats were orally administered AS - Ⅳ for 7 days prior to I/ R. Renal tissues were collected after I/ R treatment of 24h,total RNA was extracted from renal tissues and tested for quality. Sequencing experiments were carried out after being qualified. The threshold set for up - and down - regulated genes was a fold change(group1 / group2)≥2 and P≤0. 05. Afterwards,GO analysis and KEGG analysis were used to determine the roles that these differentially expressed mRNAs played in these GO terms or pathways. Results Two hundred and thirty - two lncRNAs were differentially expressed(127 lncRNAs were up - regulated and 105 lncRNAs were down -regulated). Three hundred and forty - one mRNAs were differentially expressed(178 mRNAs were up - regulated and 163 mRNAs were down - regulated). GO analysis indicated that differentially expressed mRNAs were mainly involved in biological processes such as nucleosome assembly,chromatin assembly,nucleosome organization,chromatin assembly or disassembly and DNA conformation change. GO analysis indicated that differentially expressed mRNAs were mainly involved in cellular components such as nucleosome,protein - DNA complex,nuclear chromatin,chromatin and nuclear nucleosome. GO analysis indicated that differentially expressed mRNAs were mainly involved in molecular functions such as protein heterodimerization activity,protein dimerization activity,DNA binding,nucleic acid binding. Signal pathway analysis indicated that lncRNAs and mRNAs were involved in systemic lupus erythematosus,alcoholism and viral carcinogenesis. Conclusion LncRNAs expression differed significantly in renal tissues of AKI model group and AS - Ⅳ preconditioning group. Study of the biological functions and pathways of these lncRNAs indicated that they may be involved in the mechanism of AS - Ⅳ ameliorated ischemic acute renal injury.

EZH2 is over-expressed in human colon cancer and is closely associated with tumor proliferation, metastasis and poor prognosis. Targeting and inhibiting EZH2 may be an effective therapeutic strategy for colon cancer. 3-Deazaneplanocin A (DZNep), as an EZH2 inhibitor, can suppress cancer cell growth. However, the anti-cancer role of DZNep in colon cancer cells has been rarely studied. In this study, we demonstrate that DZNep can inhibit the growth and survival of colon cancer HCT116 cells by inducing cellular senescence and apoptosis. The study provides a novel view of anti-cancer mechanisms of DZNep in human colon cancer cells.

新冠病毒感染疫情严重威胁着世界各国人民的生命健康。目前，对病毒感染的防治研究主要集中在抑制病毒与分子受体的结合上。AXL作为新发现的严重急性呼吸综合征冠状病毒2型（SARS-CoV-2）受体，在协助病毒感染人体呼吸系统中发挥着重要作用，是未来临床干预的潜在靶点。本研究对已发表的单细胞测序数据进行整理和分析，发现AXL在年轻人肺细胞中的表达水平明显高于老年人。人胚肺二倍体成纤维细胞（2BS）是衰老研究的公认细胞株。本文采用2BS细胞构建复制性细胞衰老模型，发现年轻细胞中AXL的蛋白水平明显高于衰老细胞，据此推测年轻人感染的风险可能更高，需要注意防护。我们发现一种羊栖菜褐藻多糖硫酸酯组分（SFW-3）可显著下调年轻2BS细胞中AXL的表达水平，表明SFW-3具有一定的抗SARS-CoV-2感染的研究价值，同时表明2BS细胞株也可作为潜在的SARS-CoV-2体外感染模型。
Humans ; SARS-CoV-2 ; Sargassum/metabolism* ; Diploidy ; Sulfates/metabolism* ; COVID-19 ; Polysaccharides/pharmacology* ; Lung