In recent years, there has been a growing emphasis on use of human adipose-derived stem cells (hADSCs) for cartilage tissue engineering owing to their ability to differentiate into chondrocytes, which is mainly induced by growth factors (GFs). In general, GFs for chondrogenic induction come from the transforming growth factor beta (TGF-beta) superfamily. To date, the most commonly used GFs for chondrogenes is TGF-beta1/3. However, the response of hADSCs to GFs may differ significantly from that of human bone marrow stem cells (hBMSCs). It has been reported that bone morphogenetic protein-6 (BMP-6) treatment induced TGF-beta receptor-I expression of hADSCs. It seems that these two cell populations varied strongly in their potency to undergo chondrogenesis in the same medium conditions. Here, we provide a concise review on various GFs used in chondrogenic differentiation of hADSCs in vitro.
Adipocytes ; cytology ; Cartilage ; Cell Differentiation ; Chondrocytes ; cytology ; Chondrogenesis ; Humans ; Stem Cells ; cytology ; TGF-beta Superfamily Proteins ; Tissue Engineering

The effect of TRH on endotoxic shock in rats was studied, iv 0. 22-2 mg ?kg-1 TRH significantly reversed hypotension induced by iv coli E. endotoxin (40 mg ?kg-1) into rats and caused a 4. 2 kPa rise in mean arterial pressure (MAP). MAP after TRH administered could be stablized over a higher level than control for 30 min and maintained for 3 h during observation. Interestingly enough, the MAP rose gradually in TRH-treated rats as contrast with increasingly falling of that in control group during the late shock. TRH also improved 24 h sur-vival of shock rats. The dose-response relationship could be observed between 0. 22 ~0. 67 mg ?kg-1 TRH and disappeared over a highest dose (2 mg ?kg-1). It was shown that the best dose to reverse hypotension and to improve survival was 0. 67 mg ?kg-1 TRH. Naloxone 2 mg ?kg-1 showed the nearly same effect as 0. 22 mg ?kg-1 TRH in increasing MAP, but the former had higher 24 h survival of rats than the later.

Objective To observe the therapeutic efficacy and safety of recombinant tissue-type plasminogen activator (rt-PA) combined with edaravone on acute cerebral infarction (ACI).Methods 60 cases of ACI were divided into rt-PA group (30 cases, treated by rt-PA only) and trial group (30 cases, treated with rt-PA combined with edaravone). The nerve function deficits of patients in both groups were evaluated by European Stroke Scale (ESS) and Barthel Index (BI) before and after treatment respectively.Results The ESS scores at 21st day and 90th day after treatment in the trial group were significantly higher than those of the patients in the rt-PA group. The effective rate of patients in the trial group was significantly higher than those in the rt-PA group (P＜0.05).Conclusion The treatment of rt-PA combined with edaravone is effective and safe in patients with ACI.

ObjectiveTo investigate the significance of hearing screening combined with gene screening for neonates with high-risk of hearing impairment.MethodsNeonates admitted to the Neonatal Department of Guangdong Women and Children Hospital between July 2013 and June 2014 were enrolled in this study. They were divided into high-risk group (with high-risk for hearing impairment) (n=3 129), and control group (n=5 106). Neonate hearing screening was carried out using otoacoustic emission and automated auditory brainstem response. Blood samples were collected using a standard protocol for detecting the mutations of four common deafness genes, includingGJB2,GJB3,SLC26A4 and mitochondrial 12s rRNA.Chi-square test was used to compare the differences of the pass rate of hearing screening and positive rate of gene mutations between the two groups.ResultsThe rates of failure on otoacoustic emission, automated auditory brainstem response or both in the high-risk group were 11.92% (373/3 129), 10.32% (323/3 129) and 4.83% (151/3 129), respectively, higher than those in the control group [5.03%(257/5 106), 6.56%(335/5 106) and 2.02% (103/5 106)] (χ2=130.265, 37.354 and 51.196, allP=0.000). In the high-risk group, the overall positive rate of gene mutations was 5.63% (176/3 129), and theGJB2 andSLC26A4 gene mutation rates were 3.04% (95/3 129) and 2.40% (75/3 129)], all higher than the control group [3.15% (161/5 106), 2.04% (104/5 106) and 1.06% (54/5106)] (χ2=30.301, 8.216 and 22.517, allP<0.01). But the mitochondria 12S rRNA gene andGJB3 gene mutation rates were the same in high-risk group and control group [0.19% (6/3 129) vs 0.06% (3/5 106); 0.03% (1/3 129) vs 0.00%(0/5 106), bothP>0.05]. The rates of failure on otoacoustic emission and automated auditory brainstem response of the neonates with deafness gene mutations were 9.50% (32/337) and 10.39% (35/337), respectively, higher than the neonates without [1.14% (90/7 898) and 1.29% (102/7 898)] (χ2=154.621 and 163.399, both P=0.000).ConclusionCombined hearing screening is of clinical significance for neonates with high-risk of hearing impairment.

Humans ; Neoplasm Metastasis ; pathology ; Neoplasm Staging ; methods ; Neoplasms ; classification ; pathology ; therapy

Objective To evaluate the influence of different blood purification ways on the incidence,distribution characteristics and related factors of depressive symptoms in end-stage renal disease (ESRD) patients.Methods Self-made questionnaires,short form 36 health survey questionnaire(SF-36),self-rating depression scale (SRS),medical coping modes questionnaire (MCMQ) and social support rating scale(SSRS) were performed to assess 80 hemodialysis patients and 78 continuous ambulatory peritoneal dialysis patients.If SDS score was higher than 53,the patient was diagnosed according to ICD-10.Results ①The detection rate of depressive symptoms in patients with ESRD was 61.22％,in which 50.8％ case met the diagnostic criteria of ICD-10.②Peritoneal dialysis group were better than hemodialysis group on the SF-36 (61.60± 18.50 vs 52.70 ± 20.00),comprehensive nutritional assessment (58.21 ± 13.56 vs 25.40 ± 11.21),urea clearance index(52.43± 14.20 vs 21.02±0.62) and SDS score (24.25±0.45 vs 23.89±0.91),and the results were statistically significant (P＜0.05).③Correlation analysis showed that the depression of ESRD patients was significantly negatively correlated with gender,educational level and household income (r =-0.278,-0.275,-0.283,P＜0.05),but positively correlated with course of disease(r=0.298,P＜0.05).In addition,the depressive symptoms were significantly negatively correlated with the face and avoidance factor of coping styles(r=-0.343,-0.316,P＜0.05),but positively correlated with yield(r=0.338,P＜0.05).Moreover,they were negatively correlated with objective support,subjective support and support utilization score (r=-0.330,-0.325,-0.297,P＜ 0.05).④Regression analysis showed that education level,social support and medical coping styles were influencing factors for patients with depression.The choice of dialysis way was also the influencing factor of depression occurrence.Conclusion Nutrition and urea nitrogen removal in peritoneal dialysis group is better than that in hemodialysis group.Education degree,social support,medical coping styles and dialysis way are the influencing factors of depression in ESRD patients.

Objective To investigate the reversal effect and molecular mechanisms of NF-κB inhibitor parthenolide (PTL) on insulin resistance ( IR). Methods HepG2 cells were treated with insulin at different concentrations and time points, the glucose consumption of HepG2 cells was measured via glucose oxidase method to determine the best concentrations and time for establishing insulin-induced insulin resistance on HepG2 cells. After modeling, different concentrations of PTL were added in cells for 24 h for determining cell activity and glucose-consumption. Q-PCR was used to detect the expression of NF-κB and IκBα mRNA in cells, and western blot was used to detect the expression of protein IκBα. Results The best reaction time and concentration for insulin inducing resistance of HepG2 cells were 24 h and at 10 μg·mL-1 . The optimum acting dose of PTL was 20 μmol·L-1 . NF-κB activity was significantly reduced (P<0. 05), IκBα degradation was significantly inhibited (P<0. 05) compared to HepG2 cells with insulin resistance upon intervention on insulin resistance HepG2 cells by PTL. Conclusion PTL can inhibit IκBα degradation and disassociation of it from NF-κB, which in turn improves insulin resistance, providing theo-retical basis for preventing and treating diabetes with PTL.

Objective: To analyze the prescription dosage for discharged patients in our hospital and investigate the potential risks.Methods: A retrospective research method was adopted to statistically analyze 55 872 discharge instructions from July to September in 2015,and more attention was paid to the prescriptions with dosage over 4 weeks,expecially the ones with 26-week dosage, and the related influencing factors were studied as well.

The presence of insufficient bone volume affects the implant healing and success. The aim of this study was to evaluate osteogenic capacity of dental pulp stem cells (DPSCs) on micro-arc oxidation (MAO) titanium surface. DPSCs were challenged at MAO and smooth titanium surface separately for different durations, and the bone marrow mesenchymal stem cells (BMSCs) served as the positive controls. The osteogenic capacity of DPSCs on MAO titanium surface was assessed by using scanning electron microscopy, energy dispersive spectroscopy, biochemical tests and real-time quantitative PCR. Data showed that DPSCs differentiated into osteoblasts and expressed bone morphogenetic genes on MAO titanium surface. The results of this study revealed that DPSCs had good potential to generate mineralized tissue on MAO titanium plates. The differential potential of DPSCs may be regulated by MAO titanium surface. The osteogenesis potential of DPSCs on the MAO titanium was similar with BMSCs.

Objective To evaluate the clinical efficacy of 5-aminolevulinic acid-induced photodynamic therapy (ALA-PDT) in the treatment of condyloma acuminatum. Methods Thirty-six cases of condyloma acuminatum were treated with ALA-PDT. Results After the treatment, 33 (91.67%) patients were cured, 35 (97.22%) improved. Relapse occurred in 3 (8.33%) patients. Side effects were noted in 2 (5.56%) patients. Conclusions ALA-PDT is a relatively simple, effective and safe treatment with a lower recurrence rate for condyloma acuminatum, especially for small skin lesions or lesions at specific area. However, the high expense required for multiple treatments with ALA-PDT may restrict its application.