Objective: To observe the difference in anti-inflammatory effect between living rhino horn and rhino horn by the method of comparative research to provide the experimental basis for the replacement of rhino horn by living rhino horn.Methods: The anti-inflammatory effects of living rhino horn and rhino horn were studied by the methods of paw edema in rats, cotton ball granuloma in mice, auricle swelling and peritoneal dye penetration.Results: Compared with that in the model control group, the foot metatarsus swelling degree at all time points in high (440 mg·kg-1) dose group and middle (220 mg·kg-1) dose group of living rhino horn and three doses groups of rhino horn showed statistical differences (P＜0.05 or P＜0.01).The high dose group (700 mg·kg-1) and middle dose group (350 mg·kg-1) of living rhino horn and rhino horn could significantly reduce the weight of cotton ball granuloma in mice (P＜0.05).Three doses groups (700, 350 and 175 mg·kg-1) of living rhino horn and rhino horn could significantly reduce auricle swelling in mice induced by xylene (P＜0.05 or P＜0.01).The absorbance of Evansan in the abdominal cavity in the middle dose group (350 mg·kg-1) of rhino horn and the high dose group (700 mg·kg-1) and middle (350 mg·kg-1) dose group of living rhino horn was significantly reduced (P＜0.05 or P＜0.01).There was no significant difference in the anti-inflammatory effect between living rhino horn and rhino horn at the same dose.Conclusion: Living rhino horn and rhino horn have a certain anti-inflammatory effect.The anti-inflammatory effect of living rhino horn is similar to those of the rhino horn, and living rhino horn can be used as a substitute of rhino horn.

Objective To evaluate the efficacy and safety in the treatment for gravitation wrinkles and unsatisfied shape with raonopolar and bipolar radiofrequency (RF) technique. Methods 28 patients were enrolled in this study. Every patient was treated for four times with an interval of 14 days by Accent Pro radiofrequency electric device (Alma Lasers Ltd). The clinical photographs were taken before and after the treatment, and the parameters were recorded during the treatment. The clinical efficacy and safety was evaluated 1 month after the treatment by comparing photographs and patients' satisfaction. Results Satisfactory rates were as follows: 85 % in doctor side, and 90 % in patients' side. No blister, scald, pigmentation and scar were observed during the treatment. Conclusion High frequency electric technique can be effective for the treatment of gravitation wrinkles and skin tightening by heating tissue deeply and non-invasively. Our clinical study shows that RF is an effective, non-invasive treatment with less pain and low side effects.

AIM: To investigate the effect of extracellular signal-regulated kinase 1/2 signaling pathway after severe diffuse brain injury (DBI) in rats, and to provide base for treatment. METHODS: Male Sprague-Dawley rats were randomly divided into four groups: control group, traumatic group, low dose of inhibitor U0126 treatment group and high dose of inhibitor U0126 treatment group. DBI rat model was established according to the description of Marmarou's diffused brain injury. At 30 min and 1 h, 6 h, 24 h, 48 h and 72 h after injury, morphological changes were observed under light and electronic microscopes. The ERK1/2 phosphorylation and c-Fos were measured by Western blotting. Apoptosis was measured with TUNEL method. Learning and memory function were performed with Morris water maze from 3 days to 7 days after injury. RESULTS: After trauma, some neurons displayed histopathologic changes of necrosis and apoptosis, axon myelin sheath internalization and disconnection. ERK1/2 phosphorylation protein was apparently increased at 30 min after injury, approached peak at 6 h and continued to 24 h. c-fos protein was markedly increased at 30 min after injury, approached peak at 6 h and returned to bottom at 24 h. The number of apoptotic nerve cells increased at 6 h after and approached peak at 72 h. Latencies of searching safety island prolonged. Rats treated with U0126 had reduction in ERK1/2 activity, c-Fos protein, neuronal apoptosis and searching safety island latencies. CONCLUSION: The activated ERK1/2 signaling pathway plays an important role in processing of nerve cell apoptosis after severe DBI.

Objective To discuss the protein level of hypoxia-inducible factor 1-alpha(HIF-1α),glucose transporter-1 (Glut-1)and vascular endothelial growth factor(VEGF) in breast cancer tissue in diabetic patients and its significance.Methods HIF-1α,Glut-1 and VEGF protein levels were measured by immunohistochemical staining in 112 cases of primary breast cancer tissues.CD31 labeled vascular endothelial cells were used to evaluate micro vascular density (MVD).The correlation between the effect of blood sugar control and clinicopathological parameters was analyzed.Results The expression of HIF-1α,Glut-1 and VEGF protein in breast cancer tissues of diabetic patients was significantly higher than that in breast cancer tissues of non-diabetic patients(t =2.255,P =0.030; t =2.154,P=0.038; t =2.225,P =0.032).HIF-1α was positively correlated with Glut-1 and VEGF in diabetic patients with breast cancer (r =0.561,P =0.003 ; r =0.435,P =0.014).The level of MVD in breast cancer tissues of diabetic patients was obviously higher than that in the non-diabetic patients with breast cancer(t =9.458,P =0.000).The effect of blood sugar control was significantly correlated with lymph node metastasis and tumor stage in diabetic patients with breast cancer(x2 =4.689,P =0.030; x2 =5.051,P =0.025).Conclusion Hypoxia-related factors including HIF-1α,Glut-1 and VEGF and MVD are upregulated in diabetic patients with breast cancer,and the effect of blood sugar control is correlated with lymph node metastasis and tumor stage,suggesting diabetes mellitus may promote tumor progression through high glucose and hypoxia in breast cancer.

Objective:To study the hemostasis effect of the ingredients in compound hemostasis patches .Methods:The effect of the ingredients in compound hemostasis patches on the clotting time was studied by the coagulation of rabbit whole blood in vitro.The models of femoral arterial injury in rats and perforation of femoral artery in pigs were established , and the effect of the ingredients in compound hemostasis patches on the bleeding time and the bleeding loss was studied .Results:The results of the whole blood coagula-tion in vitro showed that the clotting time of the three compound hemostasis patches at different concentrations and thrombin group was significantly shorter than that of the blank control group and the saline control group (P<0.01).Compared with to the blank control group, the results of rat femoral artery trauma model test showed that the three patch groups and thrombin group could significantly re -duce the bleeding loss and bleeding time (P<0.05 or P<0.01).The results of pig femoral artery perforation hemorrhage model test showed that the compound hemostasis patches could significantly reduce the bleeding time (P<0.05).Conclusion:Compound hemo-stasis patches can significantly shorten clotting time and decrease bleeding loss .

Objective The study was to investigate the activation of tumor necrosis factor α (TNF-α) mRNA transcription and protein expression in peripheral blood and activation of signal path PI3K/AKT in patients with chronic heart failure. Methods From February 2015 to April 2018, 244 patients with heart failure in the cardiovascular department of our hospital were selected as heart failure group, while 244 healthy cases were enrolled as the control group at the same time. The peripheral blood samples of two groups were collected. We detected the transcription and protein expression of TNF-α mRNA and the activation of PI3K, AKT in peripheral blood. The left ventricular ejection fraction (LVEF) were measured in two groups. The correlations between influencing factors and LVEF were analyzed. Results The levels of PI3K, AKT in the heart failure group were higher than those in the control group. The differences were statistically significant respectively (P < 0.05). The mRNA relative content and protein content of TNF-α in peripheral blood mononuclear cells of heart failure group were higher compared with those of control group (P < 0.05). The LVEF of heart failure group was significantly lower than that of the control group (34.50 ± 6.33) ％ versus (55.60 ± 2.49) ％, P < 0.001). Among 244 patients with heart failure, Spearman correlation analysis showed that there were significant positive correlations between TNF-a mRNA and protein expression levels and the levels of PI3K, AKT respectively (P < 0.05). Multiple factors unconditional Logistic regression analysis showed that the TNF-α mRNA, protein expression and PI3K, AKT levels in peripheral blood were independent risk factors for LVEF (P < 0.05). Conclusion The expression levels of PI3K, AKT and TNF-α are all significantly increased in chronic heart failure patients, which could participate in the occurrence and development of heart failure.

Objective:This study aimed to explore the performance of renal resistive index (RRI), semiquantitative power Doppler ultrasound (PDU) score, and renal venous Doppler waveform (RVDW) pattern in predicting 28-day renal dysfunction in critically ill patients and establish nomogram model.Methods:This was a prospective, observational study. Critically ill patients admitted to the emergency intensive care unit (ICU) of Cangzhou Central Hospital from January 2018 to October 2022 were included. Patients underwent renal ultrasound examination to obtain RRI, PDU score and RVDW pattern within 24 h after ICU admission. The following clinical variables were collected during the renal ultrasound examination session, including heart rate, mean arterial pressure, type and dose of vasoactive drugs, oxygen therapy parameters, and average urine volume per hour derived from a period of 6 h prior to the ultrasound examination. The data on duration of AKI and mortality were recorded on the 28th day of follow-up. Patients were divided into 28-day normal renal function group and 28-day renal dysfunction group according to 28-day renal dysfunction. 28-days of renal dysfunction was defined as failure to achieve renal function recovery within 28 days of ICU admission. The difference of each index between the two groups was compared. Associated factors for 28-day renal dysfunction were determined by univariate and multivariate COX regression analyses. A nomogram was developed based on the independently factors associated with 28-day renal dysfunction. Survival receiver operator characteristic (ROC) curves were plotted to assess diagnostic performance in predicting 28-day renal dysfunction. Delong’s test was used to compare area under the curves (AUC) between each predictor.Results:187 patients were enrolled for the final analysis: 97 with no AKI, 48 with AKI stage 1, 24 with AKI stage 2, and 18 with AKI stage 3 upon enrollment. At 28-day follow up, 16 patients had renal dysfunction and 2 required continuous renal replacement therapy (CRRT). The multivariate COX regression showed that RVDW and SCr upon enrollment were the independent risk predictors. Nomogram based on RVDW and SCr upon enrollment showed the best performance in predicting 14-day renal dysfunction (AUC = 0.918, 95% CI:0.871-0.964, P<0.05), and the AUC was statistically significantly higher than single index (all P<0.05). Nomogram also showed the best performance in predicting 28-day renal dysfunction (AUC = 0.924, 95% CI:0.865-0.983, P<0.05), and the AUC was statistically significantly higher than single index (all P<0.05) except for SCr upon enrollment. The optimal cutoff for nomogram in predicting 28-day renal dysfunction was ≤89.5 (sensitivity, 81.2%; specificity, 90.6%; Youden index, 0.719). Kaplan-Meier analysis showed that the median duration of renal dysfunction in the groups with total nomogram score >85.9 and ≤85.9 was 0 and 22 days (HR=0.220, 95% CI:0.129-0.376, P<0.001). Conclusions:SCr and RVDW pattern within 24 h from ICU admission were independent factors associated with 28-day renal dysfunction in critically ill patients. The value of the nomogram model based on these two factors in predicting 28-day renal dysfunction is superior to each single intrarenal Doppler spectrum indicator and clinical indicator.