Objective To evaluate the value of bronchoscopy specimens' microRNA-21 (miRNA-21) and microRNA-431 (miRNA-431) in the development and prognosis of pulmonary tuberculosis. Methods A total of 43 confirmed pulmonary tuberculosis patients admitted to Shaanxi Provincial Tuberculosis Prevention Hospital from May 2022 to July 2023 were included as the study group, and 43 healthy volunteers during the same period were included as the control group. In the study group, the severity of lung lesions was classified as mild in 14 cases, moderate in 19 cases, and severe in 10 cases. According to the prognosis, patients were divided into poor prognosis and good prognosis groups. The miRNA-21 and miRNA-431 levels of patients with different disease severity and prognosis in the study group and the control group were compared, and the factors affecting the development and prognosis of tuberculosis were analyzed by logistic multivariate analysis, and a prediction model for the development and prognosis of tuberculosis was established. Receiver operating characteristic (ROC) curve analysis was performed to evaluate the predictive value of the model. Results The levels of miRNA-21 and miRNA-431 in the study group were significantly higher than those in the control group, and the difference between groups was statistically significant (P<0.05). In the study group, the levels of miRNA-21 and miRNA-431 were positively correlated with the severity of the disease, and the levels in severe pulmonary tuberculosis patients were significantly higher than those in mild and moderate pulmonary tuberculosis patients, with statistically significant differences between the groups (P<0.05). In the study group, the levels of miRNA-21 and miRNA-431 in patients with pulmonary tuberculosis with poor prognosis were significantly higher than those in patients with pulmonary tuberculosis with good prognosis, with statistically significant differences between the groups (P<0.05). Using miRNA-21 and miRNA-431 expression as independent variables, and the development and prognosis of pulmonary tuberculosis as dependent variables, logistic regression analysis was performed. The results showed that the high expression of miRNA-21 and miRNA-431 were both influential factors for the development and prognosis of pulmonary tuberculosis (P<0.05). The ROC curve analysis showed that the optimal cutoff value of the prediction model was 0.0895, and the area under the curve (AUC) of miRNA-21, miRNA-431 and combined were 0.614 (0.651-0.732), 0.671 (0.686-0.811), and 0.891 (0.787-0.993). Conclusions The high expression levels of miRNA-21 and miRNA-431 in patients with tuberculosis are closely related to the development of the disease and can predict the prognosis of patients with tuberculosis to a certain extent. The comprehensive application value of combined diagnosis is high, and it is recommended to promote clinical use.

Objective To investigate the functional characteristic of adolescents with conduct disorder (CD) in the resting state.Methods Resting-sate fMRI (rs-fMRI) scans were administered to 28 male adolescents with CD and 28 age-,gender-and IQ-matched healthy controls (HCs).The rs-fMRI data were subjected to amplitude of low-frequency fluctuation (ALFF) analysis and ALFF values were compared between the two groups.Additionally,the region ROIs showed significant difference and correlation analysis was conducted between ALFF in each ROI and Barratt's scores.Results ① Compared to HCs,the CD group showed decreased ALFF (P＜0.005) bilaterally in the superior frontal gyrus,right middle frontal gyrus,right posterior cingulate gyrus,right inferior parietal lobule (MNI coordinates:-21,48,27;21,24,48;36,24,33 6,-36,39;48,-45,57 respectively) as well as increased ALFF (P＜O.005) in the left thalamus and left lingual gyrus (MNI coordinates:-15,-27,-3;-18,-87,-12 respectively).② There was no significant correlation between ALFF and Barratt's scores in ROIs.Conclusion The results suggest that CD is associated with abnormal intrinsic brain activity,mainly in frontal-parietal-occipital-limbic cortices,which is related to emotional and cognitive processing and behavioral functions.

AIM:To study whether or not Huangshao Yinxue Granula(HYG) has the therapeutic effect on experimental psoriasis. METHODS: The mice were treated with HYG 3.125,6.25,12.5,and 25 g/kg(i.g.) for 1 or 2 weeks.We studied the effects of HYG on mitosis in mice vagina epithelium,the formation of granular layer in scale epidermis of mice tails,the changes in CD3, CD4 and CD8 factors of the serum in psoriasis-like mice and guinea-pigs. RESULTS: HYG could inhibit the mitosis in mice vagina epithelium,promote the formation of granular layer in scale epidermis of mice tails.It could also diminish the value of serum CD4/CD8 of mice to regulate abnormal immune reaction.HYG had evident therapeutic effect on the ear skin damaged with 5% propanolol in psoriasis-like guinea-pigs. CONCLUSION: HYG has therapeutic effect on psoriasis-like animal models.

BACKGROUND:Previous studies have found that platelet-rich fibrin has a good ability to induce gingival soft tissue repair and regeneration.
OBJECTIVE:To observe the effects of platelet-rich fibrinversus colagen membrane on gingival soft tissue healing, and to evaluate the ability of platelet-rich fibrin to repair gingival defects.
METHODS:Twenty-two patients (2 premolar teeth and 20 molars) scheduled for premolar or molar removal or ridge preservation due to various reasons were selected and randomized into two groups. Bio-Oss was implanted into the extraction socket folowed by covering with platelet-rich fibrin or colagen membrane. Healing time and healing rate of gingival defects were detected to evaluate the ability of platelet-rich fibrin to promote gingival tissue healing at 1-2 weeks after Bio-Oss implantation.
RESULTS AND CONCLUSION:The healing time was (12.17±2.25) days in the platelet-rich fibrin group and (17.30±2.58) days in the colagen group. The healing rate of the platelet-rich fibrin group was notably higher than that in the colagen membrane group at 1 and 2 weeks after Bio-Oss implantation. These findings indicate that platelet-rich fibrin is better than colagen membrane to improve the healing of gingival soft tissues with a shorter healing time.

BACKGROUND: In clinical, the research on the method and the material of the soft tissue defect of the operation area has been in depth. It wil have a positive impact on our exploration and research in this field through the establishment of reliable experimental animal oral soft tissue defect model. OBJECTIVE: To establish a rabbit model of oral soft tissue defects for oral treatment of soft tissue defects in-depth study. METHODS: Eighteen 3-month-old male New Zealand rabbits were enrol ed. A tissue ring cutting dril of 5 mm diameter was used to prepare round ful -thickness soft tissue defects in the front part of the hard palate and, respectively, from the back of the maxil ary incisors, about 2 mm from the hard palate mucosal edge. Morphology and histology were observed at 3, 7, 14, 21, 28 and 56 days after model establishment. RESULTS AND CONCLUSION: (1) Morphological observation: After 3 and 7 days, the wound’s inflammatory reaction was obvious. As the time goes, the inflammatory response subsided, the wound gradual y healed. Scar formation was observed at 21, 28 and 56 days after surgery. (2) Histological observation: 3 and 7 days after injury, many inflammatory cel s were infiltrating, and tissue necrosis area was larger. At 7 days after surgery, with the extensive formation of connective tissue proliferation and new blood capil aries, the wound gradual y shaping completely. (3) Results indicated that a rabbit model of oral soft tissue defects was successful y established, which was in line with the physical laws of wound healing and the characteristics of human oral soft tissue defects healing.

Immunoglobulins ( Ig ) , also called antibodies, are important components in humoral -mediated immunity. Ig can bind with their receptors, called immunoglobulin receptors ( IgR ) , trigger biologic activities respectively. Different sub-types of Igs show different function. And IgRs have been treated as therapeutic targets in inflammation and immunity related dis-eases for many years. This article reviewed the recent progresses in the study of IgR function and its therapeutic role in inflamma-tion and immunity related diseases.

The effect of rosiglitazone and advanced glycation end products (AGEs) on the expression of fractalkine in cultured human renal mesangial cells (HRMC) were investigated. Rosiglitazone inhibits the upregulation of fractalkine induced by AGEs in HRMC.

Female ; Humans ; Hydrocarbons, Chlorinated ; poisoning ; Male ; Middle Aged ; Occupational Diseases

Aerospace medicine has paid more and more attention to abnormal changes of physiological functions induced by weightlessness and studies on their prevention during space flight. In this paper, the effect of space weightlessness on cognitive functions was introduced. We tried to analyze the correlation between the cognitive function changes and relevant Chinese medical syndromes, thus providing a potential available way to prevent and treat weightlessness induced cognitive deficit during space flight.
Aerospace Medicine ; Cognition ; Humans ; Medicine, Chinese Traditional ; Weightlessness

Objective:To explore the effects of HIF-1α on the growth of transplanted oral cancer and on the expression of CEACAM1 and VEGF-C in the tumor.Methods:Nude mouse model of oral cancer was established by transplantation of Tca8113 cells respectively treated by HIF-1α siRNA and negative control siRNA subcutaneously into right axillary region of nude mice.3 weeks after transplantation the mice were sacrificed,the tumor volum and weight were measured.The tumor tissue was examined by ELISA method for the detection HIF-1α protein expression,by real-time quantitative PCR and western blot for the detection of mRNA and protein expression of HIF-1α,CEACAM1 and VEGF-C respectively.Results:The volume and weight of the transplanted tumor in HIF-1 α siRNA group were significantly less than those in the control group(P＜0.05),CEACAM1 and VEGF-C mRNA and protein were down-regulate in HIF-1α siRNA group (P＜0.05).Conclusion:HIF-1α expression is positively related to the expression of CEACAM1 and VEGF-C in the regulation of oral tumor growth.