Objective To explore the psychological stress condition of schizophrenia caregivers in order to provide well family environment for the patients with schizophrenia.Methods The psychological stress condition of 300 caregivers of the patients with schizophrenia were investigated with the SCL-90,CSQ and SSRS.Results The detection rate of the schizophrenia caregivers with psychological problems was 63.0％,the total score of SCL-90 of the caregivers with psychological problems was (157.79±29.52 ) higher than that of the inland norm (129.96±38.76),and the difference was statistically significant (t =9.50,P＜0.01).The score of the solving problems factor and seeking help factor of caregivers with psychological question respectively were (6.16±2.18) and (4.19±1.77) significantly lower than (8.19±2.37) and (5.71±1.92) of the caregivers without psychological problems (t=7.54,6.96,respectively; P＜0.01),and the score of remorse,fantasy,retreats and rationalization factors of the caregivers with psychological problems respectively were (5.86 ±2.59),(5.44±2.57),(5.88 ±2.75),(4.71±2.80) higher than that (4.25 ± 1.49),(3.63 ±2.03),(4.18 ± 1.82 ),(3.23 ± 1.42 )of the caregivers without psychological problems,and the difference was statistically significant (P＜0.01).The total score of SSRS of caregivers with psychological question was (35.67 ±5.34)significantly lower than (41.81 ± 6.52 ) of the caregivers without psychological problems ( t =8.85,P ＜ 0.01 ),and there was a relativity between SCL-90 and SSRS,CSQ (P＜0.01).Conclusions Schizophrenia caregivers have different psychological problems,social support and coping style are the important factors of the psychological problems.So,medical staff should take many measures to help those caregivers and keep their mental health so as to provide a well family environment.

CD40/CD40L interactions play a pivotal role in T cell activation, and take part in many physiologic and pathologic procedures and different levels. In this article, stable CHO transformants secreting human CD40-Ig fusion protein were established through transfection and selection with Lipofectamaine and G418, respectively. In order to obtain great valume of recombinant protein, big batch serum-free cultures of engineered CHO cells were performed in roller-bottle using CHO-II-SFM medium. After cultures, the cell-culture supernatants were harvested, concentrated through ultra-filtration, and finally purified by affinity choromatography with Protein G Sepharose Fast Flow. Human peripheral bloods were collected freshly and seperated with Ficoll, CFU-T was cultured in semi-solid culture system with peripheral blood mononuclear cells (PBMNC). Effect of human CD40-Ig fusion protein on the formation of CFU-T was observed in vitro. The results showed that the yield of human CD40-Ig fusion protein was 30 mg in total 3 liter CHO-II-SFM culture supernatant, and it supposed that the expression level of CD40-Ig in CHO cells was more than 10 micro g/ml. The purity of purified fusion protein is above 95%. Furthermore, compared with human IgG, human CD40-Ig fusion protein significantly inhibited the formation of CFU-T at dose 0.25, 1.0, 4.0, and 10 micro g/ml, it lays a good foundation to evaluate its potential functions in vivo.

BACKGROUNDMarked interindividual variation exists in blood pressure response to benazepril, which is considered to have genetic basis. Our objectives were to evaluate whether the E112D polymorphism in the prolylcarboxypeptidase (PRCP) gene has impact on blood pressure response to benazepril.

METHODSHypertensive patients from Huoqiu County and Yuexi County of Anhui Province received daily treatment with an oral dosage of 10 mg benazepril for 15 days. Genotypes of the E112D polymorphism in the PRCP gene were determined by TaqMan SNP genotyping assay. Multivariate linear and Logistic regressions using generalized estimating equation model were performed in a total of 1092 patients to evaluate the association of PRCP genotypes and blood pressure response to benazepril.

RESULTSPatients carrying ED or DD genotype had a less systolic blood pressure reduction (adjusted beta = -3.7 + or - 1.1, P < 0.001), a less diastolic blood pressure reduction (adjusted beta = -3.1 + or - 0.8, P < 0.001) and a lower percentage of reaching target blood pressure defined as SBP lower than 140 mmHg and DBP lower than 90 mmHg (adjusted OR = 0.6, P = 0.005) than those patients carrying EE genotype. In addition, the results from stratified analysis by county (Huoqiu or Yuexi) were similar to those observed in the pooled population.

CONCLUSIONSOur data suggest that the E112D polymorphism in the PRCP gene may be a useful genetic marker to predict the antihypertensive effect of short-term benazepril treatment in hypertensive patients of Anhui Province, China.

Adult ; Aged ; Antihypertensive Agents ; therapeutic use ; Benzazepines ; therapeutic use ; Blood Pressure ; drug effects ; Carboxypeptidases ; genetics ; Female ; Genetic Predisposition to Disease ; genetics ; Genotype ; Humans ; Hypertension ; drug therapy ; genetics ; Male ; Middle Aged ; Polymerase Chain Reaction ; Polymorphism, Single Nucleotide ; genetics ; physiology ; Young Adult

The study was aimed to evaluate if the modified in situ cryopreservation could affect the biological function of mesenchymal stem cells (MSC) in vitro. Mesenchymal stem cells from human bone marrow were isolated by standard method and characterized with their morphology, cell-surface antigen profile and differentiation repertoire in vitro. The culture-expanded MSC were cryopreserved in situ with culture medium (DMEM-LG) containing 10% D MSO and 30% selected FCS in -70 degrees C. Following recovery of cryopreservation, differentiation to adipocytes, chondrocytes, and osteoblast in vitro and cell cycle analysis were performed to investigate whether the cryopreservation would change the differentiation potential of MSC. The results showed that after recovery of cryopreservation, there was no changes detected as compared with the culture-expanded MSC in both differentiation potency and growth pattern at 12 weeks. In conclusions: this optimized short term in situ cryopreservation at -70 degrees C could retain biological characteristics of human MSC for at least 3 months, and this method may be useful for cryopreservation of hum an bone marrow MSCs.
Bone Marrow Cells ; cytology ; Cell Cycle ; Cell Differentiation ; Cell Separation ; Cell Survival ; Cryopreservation ; Humans ; Mesenchymal Stromal Cells ; cytology

OBJECTIVETo study the effect of RNA interference (RNAi) targeting E6AP on the proliferation and apoptosis of HeLa cells.

METHODSHeLa cells were cultured and divided into 3 groups: blank control group, cells transfected with nonsense siRNA (small interference RNA), and cells transfected with specific E6AP siRNA. The expressions of E6AP mRNA and protein were detected by RT-PCR and Western blot before and after the transfection respectively. Cell proliferation was determined by methylthiazolyl tetrazolium (MTT). The cell apoptosis index was assessed by flow cytometry.

RESULTSUpon treatment with E6AP siRNA for 24, 48 and 72 h, the expression level of E6AP mRNA decreased 33%, 72% and 70% than siRNA treated group. The protein expression levels in 48 h and 72 h E6AP siRNA groups decreased 38%, 59% comparing with those of the nonsense siRNA treated group (P < 0.05). The proliferative capacity of cells transfectd with E6AP siRNA was significantly lower than blank control group (F = 101.38, P < 0.05) and siRNA treated group (F = 38.64, P < 0.05). The apoptosis index of HeLa cells treated with E6AP siRNA was significantly higher than that of the nonsense siRNA (F = 41.48, P < 0.05) and the blank control group (F = 86.36, P < 0.05).

CONCLUSIONSiRNA targeting can effectively suppress the expression levels of E6AP mRNA, corresponding with a proliferation inhibition and an enhanced apoptosis of HeLa cells.

Cell Line, Tumor ; Cell Proliferation ; Female ; Gene Expression Regulation, Neoplastic ; genetics ; Gene Silencing ; HeLa Cells ; Humans ; RNA Interference ; RNA, Small Interfering ; genetics ; pharmacology ; Reverse Transcriptase Polymerase Chain Reaction ; Ubiquitin-Protein Ligases ; antagonists & inhibitors ; metabolism ; Uterine Cervical Neoplasms ; genetics ; metabolism

OBJECTIVETo investigate the inhibitory effects of CaMKIIN on acute myeloid leukemia cell line HL-60 to explore a novel therapeutic target of leukemia.

METHODSHuman CaMK II N gene expression vector pcDNA3.1/hCaMKIIN or empty vector pcDNA3.1/myc-His (-) B was transfected into HL-60 cells by Lipofectamine 2000. Human CaMK II N proteins of transfected cells were detected by Western blot. Cell proliferation affected by human CaMKIIN was determined by MTT. Colony-forming assay was performed by soft agar growth system. The cells transfected with CaMKIIN were stained with Hoechst 33342 to detect the apoptotic proportion under fluorescence microscopy. Cell cycle was analyzed by flow cytometry.

RESULTSHuman CaMKIIN was stably transfected into HL-60 cells, and overexpression of human CaMKIIN inhibited the proliferation of HL-60/CaMKIIN cells compared to HL-60/mock cells and HL-60 cells [(0.44 ± 0.03) vs (0.94 ± 0.05) vs (0.94 ± 0.04), P<0.01]. The colony formation of HL-60/CaMKIIN was also markedly smaller[(21.00 ± 3.05)/500] than that of mock-transfected [(111.00±4.58)/500]] and control cells [(119.00±6.09)/500] (P<0.01). After 72 hrs-culture, the apoptotic proportion in cells transfected with CaMK II N was obviously higher than of cells transfected with mock DNA or control [(22.49 ± 2.15)% vs (7.17 ± 0.72)% vs (6.40 ± 0.55)%, P<0.01]. Up to (82.97 ± 2.90)% human CaMKIIN/HL-60 cells were arrested at G0/G1 phase, which was more than mock-transfected [(40.53 ± 2.38)%] and control cells [(41.63 ± 2.27)%] (P<0.05). Human CaMKIIN could down-regulate expression of Bcl-2 in transfected cells.

CONCLUSIONCaMK IIN up-regulation could inhibit proliferation and induce apoptosis of human acute myeloid leukemia cell HL-60.

Apoptosis ; Cell Proliferation ; Genetic Vectors ; HL-60 Cells ; Humans ; Proteins ; genetics ; metabolism ; Transfection ; Up-Regulation

Recent reports have clearly demonstrated that bone marrow cells can be differentiated into neurons, suggesting the existence of cells with the differentiation capacity in the bone marrow cell population. It is well known that hematopoietic stem cells as well as mesenchymal stem cells (MSCs) can be transplanted and therefore, alternative of them might contribute to the process. In the present study it was addressed whether marrow MSCs could be coaxed into neuron-specific antigen bearing cells and if so, whether the differentiated cells possess the cytochemical features seen in neurons. The report here showed that high concentration of 2-mercaptoethanol (2-ME) could induce some of the MSCs into neuron-like cells expressing neurofilament (NF) and neuron specific enolase (NSE). The neuron-like cells were alkaline phosphotase positive while the others MSCs were kept negative. Cells treated with 2-ME were positive for alpha-naphthylacetate esterase and glycogen and negative for acetylchonlinesterase, which were similar with the results seen in untreated cells. Furthermore, Nissel body was not observed in treated cells shown by toluidine blue staining. Therefore, it is likely that the cells described here seem not belong to the neuronal lineage. These findings, however, reveal that human MSCs could alter their committed fates under some circumstances.

[Objective] To investigate the safety and associated factor of external cephalic version (ECV) in third trimester,and to enrich clinical experience to improve the successful rate and lower cesarean section (CS) rate.[Methods] 80 pregnant women conducting ECV in third trimester in the third affiliated hospital of Sun Yat-sen University from September 2015 to July 2017 were enrolled in our study.Divided to successful group and failing group,we compared the clinical characters and pregnancy outcomes.[Results] Of the 80 pregnancy,48 women (60.0％) succeed with cephalic presentation.Compared to the failing group,the successful group is statistically different in parity,BMI and amniotic fluid depth.In the failing group,all women underwent CS with 3/48 in successful group.No women conducted ECV complicated fetal distress and emergency CS,premature rupture of membranes complicated in 11 (13.8％) cases in all women.[Conclusions] ECV is safe for mother and fetus.Encouraging the suitable pregnancy women to conduct ECV and enhancing clinical skills can improve ECV success rate.

This study was aimed to investigate the distribution of 1059 G/C gene polymorphism of C-reactive protein(CRP) in deep vein thrombus (DVT) and its clinical significance. Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) was used to screen 1059 G/C polymorphism in exon 2 of C-reactive protein gene in 61 cases of DVT and 60 healthy controls. The frequency of mutation was calculated. The results showed that there was no statistical difference of 1059 G/C genotype and mutation frequency of allele between deep vein thrombosis group and control group (p > 0.05). It is concluded that the 1059 G/C gene polymorphism of CRP displays certain difference in races and areas, and whether 1059 G/C gene polymorphism of CRP is a dangerous factor for deep vein thrombosis, which needs to be deeply explored.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; C-Reactive Protein ; genetics ; Case-Control Studies ; Exons ; Female ; Gene Frequency ; Genotype ; Humans ; Male ; Middle Aged ; Polymorphism, Restriction Fragment Length ; Venous Thrombosis ; genetics ; Young Adult

BACKGROUNDHelicobacter pylori (H. pylori) frequently colonizes the stomach. Gastroesophageal reflux disease (GERD) is a common and costly disease. But the relationship of H. pylori and GERD is still unclear. This study aimed to explore the effect of H. pylori and its eradication on reflux esophagitis therapy.

METHODSPatients diagnosed with reflux esophagitis by endoscopy were enrolled; based on rapid urease test and Warth-Starry stain, they were divided into H. pylori positive and negative groups. H. pylori positive patients were randomly given H. pylori eradication treatment for 10 days, then esomeprazole 20 mg bid for 46 days. The other patients received esomeprazole 20 mg bid therapy for 8 weeks. After treatment, three patient groups were obtained: H. pylori positive eradicated, H. pylori positive uneradicated, and H. pylori negative. Before and after therapy, reflux symptoms were scored and compared. Healing rates were compared among groups. The χ2 test and t-test were used, respectively, for enumeration and measurement data.

RESULTSThere were 176 H. pylori positive (with 92 eradication cases) and 180 negative cases. Healing rates in the H. pylori positive eradicated and H. pylori positive uneradicated groups reached 80.4% and 79.8% (P = 0.911), with reflux symptom scores of 0.22 and 0.14 (P = 0.588). Healing rates of esophagitis in the H. pylori positive uneradicated and H. pylori negative groups were, respectively, 79.8% and 82.2% (P = 0.848); reflux symptom scores were 0.14 and 0.21 (P = 0.546).

CONCLUSIONSBased on esomeprazole therapy, H. pylori infection and eradication have no significant effect on reflux esophagitis therapy.

Adolescent ; Adult ; Aged ; Amoxicillin ; therapeutic use ; Esomeprazole ; therapeutic use ; Esophagitis, Peptic ; drug therapy ; etiology ; microbiology ; Female ; Gastroesophageal Reflux ; drug therapy ; etiology ; microbiology ; Helicobacter Infections ; complications ; drug therapy ; Helicobacter pylori ; drug effects ; pathogenicity ; Humans ; Male ; Middle Aged ; Tinidazole ; therapeutic use ; Young Adult