AIM:Xilei Powder,a traditional Chinese prescription,has been used to treat wounds for hundreds of years,but the mechanism has not been fully understood.METHODS:The effects of Xilei Powder on fibroblast proliferation,collagen accumulation,matrix metalloproteinases-2,9 ( MMP-2,9 ) activities and tissue inhibitor of metalloproteinase 1 (TIMP-1) production were investigated by MTT,chloramine T method,gelatin zymography and enzyme-linked immunosorbent assays ( ELISA),respectively.RESULTS: The aqueous extract of Xilei Powder significantly promoted fibroblasts proliferation in a time and concentration manner,the population doubling time (125 μg/mL) was 33.8 h,it also significantly (P ＜0.05 ) promoted collagen production.Both of the aqueous and alcoholic extracts could significantly ( P ＜ 0.05 ) increase MMPo2 activity,and also very significantly ( P ＜ 0.01 )promote TIMP-1 production.CONCLUSION: Xilei Powder could promote fibroblasts proliferation,collagen and TIMP-1 production,this might be parts of mechanism to promote wound healing.

AIM:Xilei Powder,a traditional Chinese prescription,has been used to treat wounds for hundreds of years,but the mechanism has not been fully understood.METHODS:The effects of Xilei Powder on fibroblast proliferation,collagen accumulation,matrix metalloproteinases-2,9(MMP-2,9)activities and tissue inhibitor of metalloproteinase 1(TIMP-1)production were investigated by MTT,chloramine T method,gelatin zymography and enzyme-linked immunosorbent assays(ELISA),respectively.RESULTS:The aqueous extract of Xilei Powder significantly promoted fibroblasts proliferation in a time and concentration manner,the population doubling time(125 ?g/mL)was 33.8 h,it also significantly(P

Pharmacology, pharmacokinetics, clinical study and safety of dapagliflozin in the treatment of type 2 diabetes mellitus were reviewed in the paper. As a sodium-glucose cotransporter 2 (SGLT2) inhibitor, dapagliflozin can reduce HbA1c, FPG and body weight of patients with type 2 diabetes mellitus. The main adverse reaction is genital infection. The antihypertensive effect of dapagliflo-zin is still under study at present.

Purpose To investigate the expression of DLC1 and its relationship with Ki-67 in cancerous and non-cancerous tissues of the breast.Methods In situ hybridization and immunohistochemiscal EnVision method were used to detect the expression of DLC1 mRNA and protein and Ki-67 in 52 invasive breast ductal carcinomas and 42 non-cancerous mammary tissues, including 22 mammary fibroadenomas and 20 paracancerous tissues.Results The positive rates of DLC1 mRNA and protein expression in the breast carcinomas (50% and 57.7%) was significantly lower than that in the non-cancerous mammary tissues (90.5% and 92.9%) (χ~2=17.518 and 10.729,P＜0.01).The expression of DLC1-mRNA was positively related to DLC1protein (r_s=0.379,P＜0.01). The positive rate of Ki-67 expression was 61.5% in the breast carcinomas, but no expression was observed in the all non-cancerous tissues (χ~2=39.186,P＜0.01).Correlation analysis showed that DLC1 expression was negatively correlated with Ki-67 expression (r_s=-0.507,P＜0.01).Conclusions Lower or no expression of DLC1 mRNA and protein may play an important role in the pathogenesis and progression in breast carcinoma. DLC1 may inhibit the proliferation of the breast carcinoma cells,which indicates that it may act as a new molecular marker of breast carcinoma.Combining detection of DLC1 and Ki-67 may be useful parameters for evaluating the biological behaviors of breast carcinoma.

Objective To summarize the evaluation standard of cardiac death organ donation from Chinese first category donor heart application and experience of donor heart function maintenance.Method From Jan.2013 to Jan.2015,donor hearts for heart transplantation were obtained in 18 cases of Chinese first category cardiac death organ donors from 109 cases of organ donation donors through rigorous assessment and effective donor heart function maintenance.The diagnosis of brain death was based on the diagnosis of brain death criteria (adult) by the neurological department of internal medicine,department of neurosurgery,and intensive care unit with brain death qualification.Organ donation work followed the basic principles of voluntary,free,fair,equitable and technical access.Result Eighteen case of heart transplantations were all operated with double lumen venous anastornosis.The cold ischemia time was (125.5+ 18.7) min (61-60 min),and cardiopulmonary bypass time was (130.4+ 12.5) min (99-193 min).In 18 heart transplantations,16 cases survived,and 2 eases died of acute right heart failure.During the follow-u period,the quality of life in the survival recipients was satisfactory.Conclusion Using cardiac death organ donation from Chinese first category donor heart transplantation has achieved good results.The accurate assessment of donor hearts and effective donor heart function maintenance are the key factors to guarantee the success of heart transplantation.

To explore the influence of calculus bovis on the function of primary cultured mice oral fibroblasts, we determined the effects of calculus bovis on the fibroblast proliferation, collagen production, matrix metalloproteinases-2, -9 activities and tissue inhibitor of metalloproteinase-1 production by MTT assay, chloramine T method, gelatin zymography and enzyme-linked immunosorbent assays respectively. The results showed that calculus bovis could significantly inhibit the proliferation of fibroblasts and collagen synthesis in a concentration dependent manner, could significantly (P<0.05) suppress matrix metalloproteinases-2 activity and very significantly (P<0.01) inhibit the production of tissue inhibitor of metalloproteinase-1. In conclusion, the major function of calculus bovis in the process of ulcer healing is not to promote tissue regeneration, the mechanism that calculus bovis inhibits collagen synthesis may be partly due to its ability to very significantly (P<0.01) suppress the production of tissue inhibitor of metalloproteinase-1.
Animals ; Cattle ; Cell Proliferation ; drug effects ; Cells, Cultured ; Cholelithiasis ; chemistry ; veterinary ; Collagen ; drug effects ; metabolism ; Fibroblasts ; cytology ; physiology ; Materia Medica ; pharmacology ; Mice ; Mice, Inbred BALB C ; Mouth Mucosa ; cytology ; Tissue Inhibitor of Metalloproteinase-1 ; drug effects ; metabolism

ObjectiveTo investigate the clinical promoting effect of crossing nape electroacupuncture on the recovery of swallowing function and recovery from pulmonary infection in post-cerebral infarction patients with tracheotomy.MethodSixty post-cerebral infarction patients with cough reflex disorder and swallowing dysfunction associated with pulmonary infection receiving tracheotomy and tracheal intubation were subjects. They were allocated, using a random number table, to three groups, 20 cases each. In each group, the patients were enrolled in order of visits. The three groups were given the same basic treatment for fighting inflammation, resolving phlegm and improving blood supply. The crossing nape electroacupuncture group received bilateral points Fengchi (GB20), Yifeng (TE17), Dicang (ST4)-to-Jiache (ST6) and Lianquan (CV23) acupuncture with electrodes connected by left-right crossing. The acupuncture group received bilateral points Fengchi, Yifeng, Dicang-to-Jiache and Lianquan acupuncture without electrodes connected. The control group received basic treatment with Western drugs without acupuncture therapy. Observations were carried out using the Kubota’s water drinking test, the Toshima Ichiro Swallowing Assessment and the Clinical Pulmonary Infection Score. The clinical therapeutic effects were evaluated in the three groups.ResultThe therapeutic effects evaluated using the Kubota’s water drinking test and the Toshima Ichiro Swallowing Assessment were better in the crossing nape electroacupuncture group than in the acupuncture group and better in the acupuncture group than in the control group (P<0.05). The score of the Clinical Pulmonary Infection Score decreased in all the three groups. The promoting effect on recovery from pulmonary infection was marked in the crossing nape electroacupuncture group (P<0.01).ConclusionCrossing nape electroacupuncture has a marked improving effect on dysphagia in post-cerebral infarction patients with tracheotomy and tracheal intubation. It can promote recovery from pulmonary infection in post-cerebral infarction patients with cough reflex disorder receiving tracheotomy and tracheal intubation.

Objective:To investigate the effect of three-dimensional printing technique assisted knee arthroplasty in the treatment of knee osteoarthritis with extraarticular deformities.Methods:Twelve patients with knee osteoarthritis and extraarticular deformities in the Sixth People's Hospital of Fuyang were selected as the study subjects from January 2016 to June 2018, and all patients were treated with total knee arthroplasty assisted by 3D printing.The operation time, intraoperative blood loss, preoperative simulated osteotomy value, intraoperative osteotomy value, postoperative drainage volume, joint activity score and Hospital for Special Surgery (HSS) score before treatment, 6 months after replacement and at the last follow-up were observed.Results:The intraoperative blood loss of patients was an average of (389.9±32.6)mL, and the drainage volume of patients was an average of (405.2±85.4)mL.There were no statistically significant difference between preoperative analogue value and intraoperative osteotomy value (all P>0.05). The HSS score ( P<0.001) and knee joint mobility ( P<0.001) were significantly higher at 6 months after operation and the last follow-up, and the mechanical axis deviation of lower limbs was significantly lower than that before operation ( P<0.001). Conclusion:Treatment of knee osteoarthritis with extra-articular deformity by using 3D printing assisted technique can restore the lower limbs and promote the recovery of knee joint function, which has satisfactory short-term effect and deserves further study and discussion.

BACKGROUND:Studies have shown that chronic apical periodontitis is one of the common inflammatory bone destruction diseases.Icariin can promote osteogenic differentiation,inhibit bone resorption,and may play a protective role in bone destruction caused by chronic apical periodontitis. OBJECTIVE:To investigate the effect of icariin on the proliferation and differentiation of MC3T3-E1 cells in the inflammatory environment stimulated by lipopolysaccharides. METHODS:Lipopolysaccharides were used to stimulate MC3T3-E1 cells to establish an inflammatory environment in vitro,and cell counting kit-8 was used to detect the best concentration and optimal action time of lipopolysaccharides.Cell counting kit-8 was used to detect the optimal concentration of icariin under the stimulation of lipopolysaccharides at a concentration of 1 μg/mL.Alkaline phosphatase detection,Real-time PCR and western blot assay were used to detect the effect of icariin on osteogenic differentiation of MC3T3-E1 cells in the inflammatory environment.Real-time PCR and western blot were used to detect the effects of icariin on the expression of interleukin-1β and interleukin-6 in MC3T3-E1 cells in the lipopolysaccharide-stimulated inflammatory environment. RESULTS AND CONCLUSION:Cell counting kit-8 results showed that the optimal concentration of icariin was 0.1 μg/mL.In the inflammatory environment,icariin enhanced the expression of alkaline phosphatase and promoted osteoblast differentiation.Compared with the lipopolysaccharide group,the expression of osteogenesis-related factors alkaline phosphatase and Runx2 was increased in the lipopolysaccharide+icariin group.Compared with the lipopolysaccharide group,the expression levels of inflammation-related factors interleukin-1β and interleukin-6 decreased in the lipopolysaccharide+icariin group.To conclude,lipopolysaccharides weaken the osteogenic ability of MC3T3-E1 cells and aggravate the inflammatory response,but icariin has a protective effect on them.

Objective:To explore the value of jellyfish sign, an abnormal ultrasonographic sign, in predicting adverse perinatal outcomes of women with complete placenta previa combined with placenta accreta spectrum disorders (PAS).Methods:This retrospective study analyzed the ultrasound images of 72 singleton gravidas, diagnosed with complete placenta previa combined with PAS, who underwent cesarean section at the First Affiliated Hospital of Nanjing Medical University between January 2020 and February 2023. Based on the presence and absence of the jellyfish sign in ultrasound images, these gravidas were divided into the jellyfish-sign group (15 cases, 20.8%) and the non-jellyfish-sign group (57 cases, 79.2%). The clinical data and perinatal outcomes of the two groups were analyzed. The adverse perinatal outcomes encompassed conditions such as abdominal aorta balloon block, uterine artery embolism, hysterectomy, postpartum hemorrhage, and neonatal intensive care unit (NICU) admission of their neonates. Statistical analysis was performed using two independent samples t-test, the Mann-Whitney U test and the Chi-square (or Fisher's exact) test. Results:(1) The jellyfish-sign group exhibited a higher parity [(1.6±0.7) times vs (1.2±0.6) times, t=2.01] and higher prenatal scores of placenta accreta [(12.3±1.5) scores vs (8.6±2.9) scores, t=6.59] than those in the non-jellyfish-sign group (both P<0.05). Among the 57 cases in the non-jellyfish-sign group, there were 14 cases of placenta creta (24.6%), 40 cases of placenta increta (70.2%), and three cases of placenta percreta (5.3%). Among the 15 cases in the jellyfish-sign group, nine cases were diagnosed with placenta increta, six with placenta percreta, and none with placenta creta. The difference in distribution between the two groups was statistically significant (Fisher's exact test, P<0.001). (2) Intraoperative blood loss [(for those who accepted abdominal aorta balloon block, 1 973±1 057) ml vs (1 211±576) ml, t=2.55], red blood cells transfused [4.0 U (2.0-23.0 U) vs 2.5 U (0.0-11.0 U), Z=－2.53], postoperative hospitalization time [(9.7±2.4) vs (7.5±2.2) d, t=3.36], the incidence of abdominal aorta balloon block [15/15 vs 38.6% (22/57), χ2=17.92], uterine artery embolism [for those who accepted abdominal aorta balloon block, 3/15 vs 1.8% (1/57), Fisher's exact test], and requiring blood transfusion [15/15 vs 63.2% (36/57), Fisher's exact test] were higher in the jellyfish-sign group than those in the non-jellyfish-sign group. However, the non-jellyfish-sign group had lower gestational age at delivery [(33.6±1.5) weeks vs (35.2±1.8) weeks, t=－3.24], and lower neonatal Apgar score at 1 min and 5 min [1 min: 8 scores (3-10 scores) vs 9 scores (4-10 scores), Z=－2.46; 5 min: 9 scores (7-10 scores) vs 10 scores (6-10 scores), Z=－2.02] (all P<0.05). There were no significant differences in emergency surgery rate, 24 h postoperative blood loss, neonatal birth weight, and proportion of NICU admission between the two groups. Additionally, no cases of hysterectomy or death were observed in the two groups. Conclusions:Ultrasound examination revealing jellyfish signs in patients with complete placenta previa and PAS is associated with an increased likelihood of adverse perinatal outcomes. Consequently, the management of these patients should be given greater attention.