Objective:To investigate the clinical features of patients with chronic obstructive pulmonary disease (COPD) and serum-positive specific IgE (SIgE).Methods:This study was a retrospective cohort study. A total of 105 stable COPD patients with allergic features and completed serum SIgE testing were included, and all of them were from Capital Medical University, Beijing Tong Ren Hospital from September 2022 to October 2023. Those with at least one positive result of SIgE testing were classified as positive SIgE COPD group, and those with negative SIgE were classified as negative SIgE COPD group. There were 32 cases (30.5%) in the positive SIgE COPD group and 73 cases (69.5%) in the negative SIgE COPD group. Differences in laboratory tests, pulmonary function, chronic obstructive pulmonary symptom scores, incidence of severe acute exacerbation events in the past year, and drug therapy were compared between the two groups. The risk factors for positive SIgE COPD were analyzed, and the best predictive value for the diagnosis of positive SIgE COPD was analyzed using the area under the curve (AUC) of receiver operating characteristic (ROC).Results:Compared with the negative SIgE COPD group, the percentage of positive SIgE COPD group with rhinitis, sinusitis, sinusitis with nasal polyps, eczema, and a history of drug or food allergy were higher (all P<0.05) and the percentage of those who had quit smoking were higher ( P<0.05); the percentage of IgE above normal thresholds, the level of IgE, the percentage of peripheral blood eosinophil (EOS%), the count of EOS, and fractional exhaled nitric oxide (FeNO) were higher (all P<0.05), and the percentage of those who had severe and above severe Global Strategy for the Diagnosis, Management, and Prevention of COPD (GOLD) pulmonary function classification were higher, while the percentage of forced expiratory volume in one second (FEV 1% predicted), 25% maximal expiratory flow (MEF 25%) and MEF 75/25% were lower, and FEV 1/FVC was higher (all P<0.05). The positive SIgE COPD group had higher modified British medical research council (mMRC) scores and COPD assessment test (CAT) scores, and a higher incidence of severe acute exacerbation events over the past year (all P<0.05), and the use of short-acting β 2 receptor agonists (SABA) or short-acting muscarinic antagonist (SAMA), inhaled corticosteroid (ICS), theophylline and oral hormone therapy were more frequent (all P<0.05). EOS% ( OR=1.252, 95% CI: 1.039-1.508) was a risk factor for SIgE positivity in COPD ( P<0.05), and having quit smoking ( OR=0.385, 95% CI: 0.197-0.751) was a protective factor ( P<0.05). The AUC value of the ROC curve of EOS%>2.5% for the diagnosis of SIgE positivity was 0.647 (95% CI: 0.543-0.752), with a sensitivity and specificity of 52.8% and 73.1%, respectively. Conclusions:Positive SIgE COPD has sever clinical symptoms, high risk of acute exacerbation and deficiencies in treatment. The elevate of EOS% is a risk factor for the development of positive SIgE in COPD patients; positive SIgE COPD meets the diagnostic criteria for allergic COPD phenotype, and EOS% over 2.5% is suggestive of the clinical detection of allergic COPD phenotype.

The chloroplast genome encodes many key proteins involved in photosynthesis and other metabolic processes, and metabolites synthesized in chloroplasts are essential for normal plant growth and development. Root-UVB (ultraviolet radiation B)-sensitive (RUS) family proteins composed of highly conserved DUF647 domain belong to chloroplast proteins. They play an important role in the regulation of various life activities such as plant morphogenesis, material transport and energy metabolism. This article summarizes the recent advances of the RUS family proteins in the growth and development of plants such as embryonic development, photomorphological construction, VB6 homeostasis, auxin transport and anther development, with the aim to facilitate further study of its molecular regulation mechanism in plant growth and development.
Female ; Pregnancy ; Humans ; Ultraviolet Rays ; Biological Transport ; Chloroplasts/genetics* ; Embryonic Development ; Plant Development/genetics*

AIM: To explore the correlation between remnant cholesterol(RC)and anterior ischemic optic neuropathy(AION).METHODS: A total of 80 cases of AION patients hospitalized in the department of ophthalmology of Linyi People's Hospital from January 2020 to December 2023 were selected as the observation group, and 80 cases of those who had completed health checkups in Linyi People's Hospital during the same period(without ischemic optic neuropathy and other fundus vasculopathies)were selected as the control group. The general data and biochemical indexes of the two groups were compared to evaluate the correlation between RC and AION.RESULTS: Compared with the control group, the levels of RC, fasting blood glucose(FBG), triglyceride(TG), total cholesterol(TC), and low-density lipoprotein cholesterol(LDL-C)in patients with AION were significantly higher than those in the control group(all P<0.01). Spearman correlation analysis showed that RC was positively correlated with TG, TC, and LDL-C(all P<0.01). Logistic regression analysis showed that RC and FBG were risk factors for the development of AION. The analysis of receiver operating characteristic(ROC)curves showed that the level of RC had a better predictive value for the development of AION compared with FBG.CONCLUSION: RC is associated with the development of AION and is a risk factor for the development of AION. Clinical standardization of the management of people with high RC values can reduce the risk of the development of AION, which is of clinical significance.

Objective To investigate the risk factors of hip instability in elderly patients with femoral neck fracture after hemiarthroplasty(HA).Methods The medical records of 133 patients with femoral neck fracture who received HA treatment in the Department of Orthopedics of our hospital from January 2015 to October 2022 were retrospectively collected.According to whether the patients suffered hip dislocation after surgery,the patients were divided into dislocation group(n=35)and non-dislocation group(n=98).Demographic variables such as age,sex and body mass index(BMI)were recorded in the two groups.Complications such as diabetes,hypertension,heart disease and chronic obstructive pulmonary disease(COPD)were recorded.Prosthetic type,surgical approach,soft tissue repair type,blood loss and other surgical phase variables were recorded.Central marginal Angle(CEA),extraneous Angle(ABA),eccentricity,lower limb length difference(LLD),acetabular width,acetabular depth,and femoral head coverage(FCR)were measured on radiographs.Wald method was used to establish Logistic regression model to elucidate the risk factors of dislocation after HA.Results The proportion of COPD in the dislocation group was significantly higher than that in the control group(P＜0.05),and there was no significant difference in baseline characteristics between the two groups(P＞0.05).There was no significant difference between the two groups(P＞0.05).There were no significant differences in CEA,ABA,LLD,acetabular width,eccentricity and FCR between 2 groups(P＞0.05),but the acetabular depth and depto-width ratio in luxation group were significantly lower than those in control group(P＜0.05).Gender,COPD,CEA,acetabular width-to-depth ratio and LLD were independent risk factors for hip instability after HA(P＜0.05).Conclusion In this study,COPD,male,LLD,and small CEA and acetabular broad-to-depth ratio are independent risk factors for hip instability after HA,and therefore HA is not recommended for the treatment of femoral neck fractures in elderly patients with these conditions.

The biological samples of oral genetic diseases and rare diseases are extremely precious. Collecting and preserving these biological samples are helpful to elucidate the mechanisms and improve the level of diagnose and treatment of oral genetic diseases and rare diseases. The standardized construction of biobanks for oral genetic diseases and rare diseases is important for achieving these goals. At present, there is very little information on the construction of these biobanks, and the standards or suggestions for the classification and coding of biological samples from oral and maxillofacial sources, and this is not conducive to the standardization and information construction of biobanks for special oral diseases. This consensus summarizes the background, necessity, principles, and key points of constructing the biobank for oral genetic diseases and rare diseases. On the base of the group standard "Classification and Coding for Human Biomaterial" (GB/T 39768-2021) issued by the National Technical Committee for Standardization of Biological Samples, we suggest 76 new coding numbers for different of biological samples from oral and maxillofacial sources. We hope the consensus may promote the standardization, and smartization on the biobank construction as well as the overall research level of oral genetic diseases and rare diseases in China.

Objective:To explore the independent risk factors that predict 10-year mortality in patients with stable chronic obstructive pulmonary disease(COPD).Methods:The baseline data from a prospective cohort study were analyzed and long-term follow-up were performed. Patients with confirmed diagnosis of stable COPD were consecutively enrolled in the outpatient clinic from January 2010 to December 2010, and were followed up until December 31, 2020. Cox regression analysis was used to determine the independent risk factors for all-cause mortality and mortality from respiratory causes in stable COPD patients.Results:A total of 182 stable COPD patients were enrolled and followed up for a median of 89 months. The 10-year mortality was 51.1%(93/182), and 9 patients died within one year. The leading cause of death was respiratory disorder, followed by cardiovascular and cerebrovascular diseases. The risk factors independently associated with all-cause mortality included old age( HR=1.936,95% CI: 1.610~2.328, P<0.01), increased baseline COPD Assessment Test(CAT)( HR=1.331,95% CI: 1.049-1.689, P=0.02) and the increased CAT in one year( HR=1.314,95% CI: 1.197-1.420, P<0.01). The risk factors independently associated with respiratory cause mortality included increased baseline CAT( HR=1.719,95% CI: 1.026-2.880, P=0.04), emphysema index(LAA%)( HR=1.062,95% CI: 1.007-1.120, P=0.03), and one year inecreased CAT( HR=1.342,95% CI: 1.198-1.505, P<0.01)was a protective factor. Conclusions:Old age, baseline CAT, one year increased in CAT and LAA% were independent influencing factors for 10-year mortality of stable COPD patients.

Gastric cancer is one of the most common malignant tumors of digestive system, which has the characteristics of strong heterogeneity, rapid progress and poor prognosis. Liver metastasis of gastric cancer is the main cause of death of advanced gastric cancer. At present, the clinical treatment of gastric cancer mainly includes systematic treatment (systemic chemotherapy, targeted treatment, immunotherapy), surgical resection, interventional treatment and radiotherapy, but the therapeutic effects are not good, and liver metastasis of gastric cancer is lack of standardized treatment strategy. At present, the multi-disciplinary comprehensive treatment mode has been widely used in the diagnosis and treatment of malignant tumors, and has achieved good results. According to the clinical characteristics and surgical accessibility of liver metastasis of gastric cancer, the Chinese Gastrointestinal Surgery Expert Group divides it into three clinical types: resectable type, potential resectable type and non-resectable type. All kinds of clinical types of patients need multidisciplinary comprehensive treatment cooperation group experts to discuss and formulate individualized treatment plan.

Objective To investigate the molecule mechanism of microRNA (miR)-138 in inhibiting invasion and migration of breast cancer by regulating epithelial mesenchymal transformation (EMT). Methods Reverse transcription-polymerase chain reaction (RT-PCR) was used to detect expression of miR-138 after transfecting miR negative control simulacrum (miR-NC) and miR-138 simulacrum in human normal mammary epithelial cell (MCF-10A) and breast cancer cells (MCF-7 and MDA-MB-231) from July 2017 to June 2018. MTT method was used to detect the breast cancer cell activity. Cell scratch test and Transwell test were used to detect the breast cancer cell migration distance and invasion rate. RT-PCR was used to detect the expression of the EMT key molecules Vimentin, N-cadherin and E-cadherin after transfecting miR-138 simulacrum. Results The expression level of miR-138 in MCF-10A was significantly higher than that in MCF-7 and MDA-MB-231 (1.006 ± 0.009 vs. 0.324 ± 0.027 and 0.512 ± 0.068), and there was statistical difference (P<0.05);there was no statistical difference in the expression level of miR-138 between MCF-7 and MDA-MB-231 (P>0.05). The breast cancer cell viabilities of MCF-7 and MDA-MB-231 at third and fourth day after transfecting miR-138 simulacrum were significantly lower than those of transfecting miR-NC (MCF-7: 0.514 ± 0.052 vs. 0.593 ± 0.061 and 0.643 ± 0.074 vs. 0.784 ± 0.081;MDA-MB-231:0.552 ± 0.043 vs. 0.614 ± 0.063 and 0.673 ± 0.074 vs. 0.792 ± 0.077), and there were statistical differences (P<0.05). The breast cancer cell migration distances and invasion rates of MCF-7 and MDA-MB-231 after transfecting miR-138 simulacrum were significantly lower than those of transfecting miR-NC (MCF-7: 0.572 ± 0.051 vs. 1.003 ± 0.012 and 0.624 ± 0.043 vs. 1.002 ± 0.007, MDA-MB-231:0.472 ± 0.051 vs. 1.003 ± 0.095 and 0.573 ± 0.044 vs. 1.004 ± 0.091), and there were statistical differences (P<0.05). The expressions of Vimentin and N-cadherin mRNA in MCF-7 and MDA-MB-231 after transfecting miR-138 simulacrum were significantly lower than those of transfecting miR-NC, but the expression of E-cadherin mRNA was significantly increased, and there were statistical differences (P<0.05). Conclusions The expressions of miR-138 in both breast cancer cells decreased. Overexpression of miR-138 in breast cancer cell can inhibit proliferation, migration and invasion via regulating EMT.

OBJECTIVE: To investigate the clinical features and implication of restless legs syndrome (RLS) in ischemic stroke patients. METHODS: A total of 199 ischemic stroke patients were enrolled and assessed by polysomnography (PSG). RLS was identified according to criteria of International Restless Legs Syndrome Study Group. Epworth Sleepiness Scale (ESS), Mini-mental State Examination (MMSE) and Patient Health Questionnaire (PHQ-9) were used to evaluate the sleep quality, cognitive function and post-stroke depression, respectively. The National Institute of Health Stroke Scale (NIHSS) was used to evaluate the neurological function 3 months after stroke onset. Gender-and age-matched non-ischemic stroke patients with RLS (primary PLS) were selected as controls. RESULTS: Twenty-two cases of RLS were identified among 199 ischemic stroke patients (11.1%). Generalized linear model and logistic regression showed that low serum ferritin level (=-133.3 mg/L, 95%:-200.4--0.1, <0.01), subcortical infarction (=4.05, 95%:1.15-14.18, <0.05) and female (=2.54, 95%:1.04-6.23, <0.05) were identified as the risk factors of RLS in ischemic stroke patients. Compared with ischemic stroke patients without RLS, ESS increased by 4.37 (95%:2.33-6.41, <0.01), PHQ-9 increased by 2.17 (95%:0.39--3.94, <0.05), and reduced NIHSS from the baseline deceased by 0.97 (95%:-1.79--0.15, <0.05) in ischemic stroke patients with RLS. In addition, the incidence of moderate-severe depression increased (=4.27, 95%:1.40-13.10, <0.05) in ischemic stroke patients with RLS. The index of periodic leg movements of sleep (PLMS) with arousal in ischemic stroke patients with RLS was significantly higher than that in patients with primary RLS (=12.85, 95%:2.04-23.67, <0.05). CONCLUSIONS RLS is common in ischemic stroke patients and has adverse influences on patients.
Brain Ischemia ; complications ; pathology ; Depression ; complications ; Female ; Humans ; Male ; Polysomnography ; Restless Legs Syndrome ; complications ; pathology ; Stroke ; complications ; pathology

Objective To investigate the effects of microRNA-134 (miR-134) on the proliferation and apoptosis of non-small cell lung cancer (NSCLC) and its potential molecular mechanism.Methods Quantitative real-time fluorescent polymerase chain reaction (qRT-PCR) was used to detect the differences of miR-134 expression between 10 cases of lung cancer tissues and normal lung tissues,and between normal human lung epithelial cell line BEAS-2B and lung adenocarcinoma cell line A549.miR-NC and miR-134 mimic were transfected into A549 cells.The effect of miR-134 on proliferation of A549 cells was detected by methyl thiazolyl tetrazolium (MTT) and colony form experiment.Flow cytometry was used to determine the effect of miR-134 on A549 cells apoptosis.The effect of miR-134 on the expression of P53 protein was detected by Western blotting.Results The relative expressions of miR-134 in NSCLC tumor tissues and adjacent tissues were 0.429 ± 0.126 and 0.971 ±0.183 respectively,and the difference was statistically significant (t =7.742,P ＜0.001).The relative expressions of miR-134 in BEAS-2B cells and A549 cells were 1.013 ± 0.095 and 0.371 ± 0.068 respectively,and the difference was statistically significant (t =17.377,P ＜ 0.001).The absorbance (A) values of A549 cells transfected with miR-mimic were 0.451 ±0.051 and 0.518 ±0.074 on the third and forth day respectively,and those of A549 cells transfected with miR-NC were 0.683 ± 0.041 and 0.815 ± 0.065 respectively.The proliferation ability of miR-mimic group was significantly lower than that of miR-NC group (t =12.965,P ＜ 0.001;t =9.535,P ＜ 0.001).The colony forming rates of A549 cells transfected with miR-NC and miR-134 mimic were 91.2％ ± 8.3％ and 38.6％ ±4.5％ respectively,and the colony forming rate of A549 cells in miR-134 mimic group was significantly decreased (t =17.617,P ＜0.001).The apoptosis rates of miR-134 mimic group and miR-NC group were 93.5％ ± 3.7％ and 85.4％ ± 2.0％ respectively,and the difference was significant difference (t =6.119,P ＜ 0.001).The relative expressions of P53 protein in miR-134 mimic group and miR-NC group were 1.816 ±0.173 and 0.992 ± 0.096 respectively,and the difference was statistically significant (t =19.308,P ＜ 0.001).Conclusion miR-134 can be an effective target for the treatment of NSCLC by increasing the protein expression of P53,inhibiting the viability and proliferation of tumor cells,and promoting the apoptosis of tumor cells.