Objective To investigate the diagnostic value of photoplethysmography (PPG) in the detection of obstructive sleep apnea syndrome (OSAS) among critically ill patients with respiratory or cardiocerebrovascular diseases accompanied by snoring. Methods A total of 91 critically ill patients with respiratory or cardiocerebrovascular diseases accompanied by snoring, admitted to the internal medicine ward of Subei People's Hospital from January 2019 to October 2023 were enrolled. After informed consent, overnight polysomnography (PSG) and PPG were performed. The consistency of the sleep apnea parameters obtained of the two methods by sensitivity, specificity, positive predictive value, negative predictive value, and the area under the receiver operating characteristic (ROC) curve. Results There were no statistically significant differences in apnea-hypopnea index (AHI), total sleep time, lowest oxygen saturation, and time with oxygen saturation below 90% between PPG and PSG (P>0.05). When AHI≥ 5 times/h and AHI≥15 times/h, the diagnostic sensitivity of the patients in this group was 94.37% and 93.10%, respectively, with specificities of 73.68% and 90.91%, positive predictive values of 91.78% and 94.74%, and negative predictive values of 77.78% and 88.23%, and areas under the ROC curves were 0.961 and 0.982, respectively. For critically ill patients with respiratory diseases, the diagnostic sensitivity was 89.29% and 87.10%, respectively, with specificities of 84.62% and 80.00%, positive predictive values of 92.59% and 93.10%, and negative predictive values of 78.57% and 72.72%, and the areas under the ROC curves were 0.978 and 0.987, respectively. For critically ill patients with cardiocerebrovascular diseases, the diagnostic sensitivity was 87.18% and 90.32%, respectively, with specificities of 83.33% and 89.47%, positive predictive values of 91.89% and 99.63%, and negative predictive values of 78.57% and 85.56%, and the areas under the ROC curves were 0.942 and 0.986, respectively. Conclusion PPG monitoring results show high consistency with PSG in critically ill patients with respiratory and cardiocerebrovascular diseases combined with OSAS.

Objective To analyse the gene expression profile microarrays of lung adenocarcinoma patients by bioinformatics methods,to study the mechanisms affecting the development of lung adenocarcinoma,and to explore new therapeutic targets for lung adenocarcinoma.Methods The mRNA and miRNA expression data were downloaded from The Cancer Genome Atlas database,key genes were screened by R language and survival analysis and verified by the survival module of the database,and high-expression pathway enrichment analysis was performed for prognostic related genes.Finally,the correlation between key genes and immune cells was analyzed.Results The key disulfide death gene SLC3A2 and key nuclear activation miRNA(hsa-miR-1293)were identified by screening.SLC3A2 was positively correlated with hsa-miR-1293,and the higher the expression,the worse the prognosis of lung adenocarcinoma patients.The most relevant enrichment pathway for SLC3A2 is aminoacyl transfer RNA biosynthesis.SLC3A2 was positively correlated with 4 kinds of differential immune cells and negatively correlated with 4 kinds of differential immune cells.Conclusion Hsa-miR-1293 positively regulates the expression of SLC3A2,a disulfide death gene,to promote the occurrence and development of lung adenocarcinoma,which may provide ideas for developing new therapeutic targets for lung adenocarcinoma.

Objective:To investigate the etiology, clinical manifestations, clinicopathological features of cystic neutrophil granulomatous mastitis (CNGM).Methods:From Jan 2019 to Dec 2020, 95 CNGM cases diagnosed by biopsy pathology at Chongqing Hospital of Traditional Chinese Medicine and Chongqing Liangping District Hospitol of Traditional Chinese Medicine were reviewed.Results:There were 95 female patients, aged 21 to 50 years, with a median age of 32 years. Laboratory examination showed that 56% (53/95) cases had elevated rheumatoid antibody level, 27 % (26/95) had increased level of serum thyroid antibody, 15% (14/95) had elevated antineutrophil antibody, 35% (33/95) had increased ESR, 38% (36/95) had increased C-reactive protein. The positive rate of Gram-stained bacilli was 82% (78/95). Histology: pyogenic granuloma with lobule of breast as the center, the center of granuloma was cystic vacuole.Immunohistochemistry showed that the inflammatory cells in and around granuloma were mainly CD3 + cells, and CD4 + cells were more than CD8 + cells. Conclusions:The cystic neutrophilie granulo matous mastitis is a rare type of idiopathic granulomatous mastitis. The diagnosis of CNGM is dependent on its specific pathological features.

Objective:To collect data on urinary flow rate in the elderly female population across the country and to analyze the range of reference values.Methods:This study enrolled 333 subjects from July 2020 to June 2022.The study implementation process was divided into two steps.In the first step, subjects completed an electronic questionnaire, which included basic information about the subject, a short form for urinary incontinence, and a scoring form for the symptoms of overactive bladder syndrome.In the second step, the staff introduced the use of a mobile uroflowmetric device and distributed the instrument and materials.Uroflow rate data were automatically uploaded to a cloud database via the mobile phone.Subsequently, two or more physicians specializing in urinary control performed Uroflow rate-qualifying screenings and conducted statistical analyses.Results:A total of 333 subjects were enrolled in the study, and the researchers collected 1375 qualified urine flow rate records using a mobile urine flow rate instrument.The age of the subjects ranged from 60 to 84 years, with a mean age of 69 years.The reference ranges for urinary flow rate were found to be 24.8-26.2 s, with a mean urinary flow rate of 12.2-12.9 ml/s, a maximum urinary flow rate of 22.2-23.4 ml/s, and a time to peak of 8.5-9.7 s. The study observed a tendency for both maximal and mean urinary flow rates to decrease in older women as their age increased(Pearson correlation coefficient: -0.1, P<0.001). Conclusions:The uroflow rate of older women decreases with aging.Specifically, the average uroflow rate of women over 80 years old is lower than that of other age groups.This study aims to establish normal uroflow parameters for uroflowmetry in healthy older women in China.

Objective To evaluate the expression of FUNDC1 and its clinical significance in non-small cell lung cancer. Methods We used TCGA database to analyze the difference of mitochondrial receptors (DRP1, BNIP3, FUNDC1, NIX, RHEB, LC3, OPA1 and MFN1) expression between normal and NSCLC tissues, as well as its effect on the prognosis of NSCLC patients. Immunohistochemistry was used to detect FUNDC1 expression. The correlations between FUNDC1 expression and clinicopathological characteristics, prognosis were evaluated by SPSS 22.0 statistical software. Results FUNDC1 expression was increased in NSCLC tissues, compared with normal tissues. FUNDC1 expression was related to the degree of differentiation and lymph node metastasis, but not to gender, age, pathological type, distant metastasis or TNM classification. The Cox regression analysis showed that FUNDC1 protein expression, lymph node metastasis, differentiation degree were independent prognostic factors of NSCLC. Increased FUNDC1 expression was related to decreased OS and PFS (P < 0.01). Conclusion The up-regulation of FUNDC1 expression can affect the prognosis of patients with NSCLC. It may be a new potential target for treating with NSCLC.

Objective To analyze the mortality risk and evaluate the curative effects of surgery and non-surgery on NSCLC with diameter > 7.0 cm. Methods We collected the data of NSCLC patients with diameter > 7.0 cm from 2010 to 2015 from the SEER database. The 1, 2, 3-year survival rates were analyzed by life table method. Overall survival curve was estimated by Kaplan-Meier method. Univariate and multivariate Cox regression models were used to analyze the independent prognostic factors. Results The 1, 2, 3-year survival rates were 51.8%, 33.0% and 25.0%, respectively. In univariate and multivariate analyses, tumor size, N stage and treatment were the independent prognostic factors (P < 0.001). Conclusion Surgery is benefited for the prognosis of stage N0-N1 NSCLC patients with diameter > 7.0 cm. And for stage N2 NSCLC patients with diameter 7.0-9.0 cm, surgical treatment has advantages in improving the prognosis. Surgical and non-surgical patients with tumor diameter ≥9.0 cm or lymph node N3 stage have no statistically significant differences in prognosis. In addition, palliative treatment does not improve the prognosis of patients.

Objective To analyze the factors affecting the prognosis of patients with pulmonary sarcomatoid carcinoma (PSC) and construct a nomogram prediction model for the prognosis of PSC patients. Methods Based on the SEER database, 1671 patients diagnosed as PSC from 1988 to 2015 were collected and divided into modeling group and validation group according to the ratio of 7:3. Univariate and multivariate Cox regression analysis were performed in the modeling group to explore independent risk factors affecting the prognosis and construct a nomogram survival prediction model. The consistency index and calibration curve were used for verification in the modeling group and the test module respectively. Results Age, gender, histological type, TNM stage, tumor diameter > 50mm, surgery, radiotherapy and chemotherapy were independent factors that affected the prognosis of PSC patients. The nomogram prediction model was constructed and verified based on independent factors. The C indexes of the modeling group and the test model were 0.790 (95%CI: 0.776-0.804) and 0.781 (95%CI: 0.759-0.803), respectively. The calibration curves of the modeling group and the test model indicated that the predicted survival rate was basically the same as the actual survival rate. Conclusion The nomogram prediction model constructed based on the results of multivariate analysis can predict the prognosis of PSC patients, and has high accuracy and consistency.

Objective To evaluate the effects of dexmedetomidine on NLRP3 inflammasome during acute lung injury ( ALI ) induced by blunt chest trauma and hemorrhagic shock-resuscitation in rats. Methods Forty-five SPF healthy male Sprague-Dawley rats, weighing 200-220 g, were divided into 3 groups (n=15 each) using a random number table method: sham operation group (Sham group), ALI group and dexmedetomidine group ( Dex group) . A rat model of ALI was established by blunt chest trauma and hemorrhagic shock-resuscitation. Dexmedetomidine 5 μg·kg-1 ·h-1 was infused into the femoral vein after blunt chest trauma in Dex group. Blood samples were collected from the femoral artery at 6 h after blunt chest trauma for measurement of arterial oxygen partial pressure and concentrations of pro-inflammatory cytokines interleukin-1beta ( IL-1β) and IL-18 in serum ( by enzyme-linked immunosorbent assay ) . The oxygenation index was calculated. The rats were sacrificed and lungs were removed for examination of the pathological changes which were scored and for determination of the expression of NLRP3, caspase-1 and apoptosis-associated speck-like protein containing CARD ( ASC) in lung tissues ( by Western blot) and ac-tivities of lactic dehydrogenase ( LDH) and myeloperoxidase ( MPO) in lung tissues ( by colorimetry) . Re-sults Compared with Sham group, PaO2 and oxygenation index were significantly decreased, the expres-sion of NLRP3, caspase-1 and ASC was up-regulated, the activities of LDH and MPO were increased, and the concentrations of IL-1β and IL-18 in serum were increased in ALI group ( P＜0. 05 ) . Compared with ALI group, PaO2 and oxygenation index were significantly decreased, the expression of NLRP3, caspase-1 and ASC was down-regulated, the activities of LDH and MPO were decreased, and the concentrations of IL-1β and IL-18 in serum were decreased in ALI group ( P＜0. 05) . Conclusion Dexmedetomidine can al-leviate blunt chest trauma and hemorrhagic shock-resuscitation induced ALI in rats, and the mechanism is related to inhibition of NLRP3 inflammasome activation and reduction of inflammatory response.

The aberrant expression of MicroRNA-137 (miR-137) is correlated with different tumors closely,miR-137 promoter methylation considered as one of the most important mechanisms through which miR-137 expression can be regulated.The degree of promoter methylation of miR-137 was significantly increased in tumors,but the frequencies varied.In addition,it correlated with different clinical and pathological characteristics in tumors.Furthermore,miR-137 promoter methylation indicated poor prognosis.miR-137 promoter methylation promoted the initiation and progression of tumors,it was of potential to be a biomarker and reversed the methylation status of miR-137 represented a novel strategy of cancer treatment.

Objective To investigate the status of empowerment and medical support in patients with type 2 diabetes mellitus,and to explore the relationship between empowerment and medical support.Methods A multi-centered collaboration and cross-sectional survey was used in this study.With the method of simple random sampling,1512 patients with type 2 diabetes mellitus from 18 tertiary hospitals in Hunan Province were investigated from January 2016 to April 2016.General information,empowerment and medical support were investigated using general information questionnaire,Diabetes Empowerment Scale-DAWN Short Form,Patient Assessment of Chronic Illness Care DAWN Short Form.Results The mean score of empowerment ability for patients with type 2 diabetes mellitus was (53.20±16.40).The mean score of medical support for patients with type 2 diabetes mellitus was (34.56±11.64).There was positive correlation between the empowerment ability and medical support in patients with type 2 diabetes mellitus.Conclusion There is positive correlation between empowerment and medical support in patients with type 2 diabetes mellitus.But the received medical support is not enough.It is necessary to increase the supply of medical support to promote the empowerment of patients with type 2 diabetes.