Mesenchymal stem cells (MSCs) are a group of stem cells derived from mesodermal mesenchyme.They can be recovered from a variety of tissues,including bone marrow,umbilical cord tissue,umbilical cord blood,peripheral blood,and adipose tissue.Under given conditions,MSCs can differentiate into bone,fat,nerve cells,bepatocytes,and many other cells.Thus,MSCs can be used as a new treatment to substitute for organ transplantation.In recent years,the incidence of end-stage liver disease has been increasing and liver disease has become one of the major diseases affecting human health.Donor scarcity and immunological rejection limit the clinical application of liver transplantation.Numerous studies have confirmed the therapeutic effects of MSCs on hepatic fibrosis,cirrhosis,and other liver diseases,which may be related to the differentiation of MSCs into functional hepatocytes.This paper reviews the capacity,regulation,and molecular mechanism of MSC differentiation,and it discusses the therapeutic effects of different sources of stem cells for liver fibrosis.

Objective To investigate the influence of different doses of flurbiprofen axetil on neurological behavior in CCI rats.Methods All SD rats were randomly assigned to 3 groups:control group(C group),operation but without CCI,n=5;CCI group,without injection,n=5;flurbiprofen axetil (FA) group,different doses of flurbiprofen axetil were intraperitoneally administered every 12 hours for 7 days beginning on postoperative 6 hours in CCI rats (FA1 group:2mg/kg,FA2 group:4mg/kg,FA3 group:8mg/kg,FA4 group:16mg/kg),5 rats in each subgroup.The thermal withdrawal latency(TWL) and mechanical withdrawal threshold(MWT) were tested on preoperative 1,3,5 and 7 days and postoperative 1,3,5 and 7 days.Results Firstly,compared with C group[TWL:(12.396±1.144)s;MWT:(12.801±0.494)g],the TWL and MWT of CCI and FA groups[TWL:(5.645±1.144)s,(5.901±0.914)s,(6.300±0.835)s,(7.631±0.597)s,(7.894±0.526)s;MWT:(5.14±0.71)g,(5.28±0.60)g,(6.74±0.50)g,(6.74±0.25)g,(6.70±0.42)g]were significantly declined after surgery (tTWL=26.973,31.047,31.176,30.373,30.772;tMWT=44.192,48.132,51.136,54.326,46.937,all P<0.05),and the TWL and MWT of FA groups significantly improved with the doses from 2mg/kg to 16mg/kg of flurbiprofen axetil[TWL:the minimum (5.030±0.240)s,the maximum (8.300±0.430)s;MWT:the minimum (4.56±0.14)g,the maximum (7.11±0.20)g].Secondly,there were no statistically significant differences in TWL and MWT between CCI group and FA1 group(all P>0.05).However,the TWL and MWT of FA2 group,FA3 group and FA4 group[TWL:(6.300±0.835)s,(7.631±0.597)s,(7.894±0.526)s;MWT:(6.74±0.50)g,(6.74±0.25)g,(6.70±0.42)g] increased significantly compared with CCI group(tTWL=-3.768,-11.569,-13.867,tMWT=-3.898,-15.233,-14.801,all P<0.05).Thirdly,there were no statistically significant differences in TWL and MWT between FA3 group and FA4 group (all P>0.05).Conclusion Over 4mg/kg of flurbiprofen axetil can significantly reduce the thermal hyperalgesia and mechanical allodynia in CCI rats,however,there is a ceiling effect of flurbiprofen axetil,and the dosage of 8mg/kg can provide a maximum analgesic effect.

With the development of magnetic resonance (MR) technology, the concern is focused on molecular and physiological imaging besides structural information. Ultra high field MR scanner shows great superiority. 3. 0-T MR scanners provide almost two-fold signal-to-noise ratio (SNR) compared with a standard 1. 5-T MR scanner. The higher baseline SNR can be converted into a variety of alternative benefits. There are still some other changes brought about by 3. 0-T, such as higher sensitivity to motion, susceptibility effect, more difference in resonant frequency among different metabolites, and so on. These features may be a double-edged sword in structural and functional imaging. But with the ceaseless progress of the technology and gains in experience, 3. 0-T systems will provide more information and show more advantages.
Animals ; Humans ; Image Enhancement ; methods ; Magnetic Resonance Imaging ; instrumentation ; methods ; Magnetic Resonance Spectroscopy ; instrumentation ; Sensitivity and Specificity

Chronic Periodontitis ; diagnosis ; diagnostic imaging ; therapy ; Dental Scaling ; Follow-Up Studies ; Furcation Defects ; diagnosis ; diagnostic imaging ; therapy ; Gingival Hyperplasia ; diagnosis ; diagnostic imaging ; therapy ; Humans ; Male ; Middle Aged ; Periodontal Index ; Radiography, Panoramic ; Root Canal Therapy ; Tooth Loss ; diagnosis ; diagnostic imaging ; therapy ; Tooth, Artificial

Environmental Pollution ; prevention & control ; Metals, Heavy

Objective To study the clinical features of cardiac arrest patients and the influence factors of effective resuscitation. Methods The clinical data of 76 patients in our hospital who underwent cardiac arrest and resuscitation were analyzed retrospectively. Results The effective resuscitation were observed in forty-seven patients (47/76, 61.8%), 28 patients completely survived(28/76,36.8%), and the total death rate was 63.2%. The successful rate of resuscitation was positive relation to the starting time of resuscitation, the way of cardiac arrest, and the structure and function of heart, but was negative relation to the times of cardioversion. The successful rate of resuscitation had indefinite relation with the patients age and gender. Conclusion The immediate cardioversion was the key factor of successful resuscitation.The successful resuscitation was dependent on the continuous and effective cardio-press. Basical cardio-disease was the major factor affecting prognosis.

Environmental Health ; Occupational Health ; Social Responsibility

OBJECTIVETo study clinical efficacy of smoothing Gan reinforcing Shen (SGRS) method in treating poor response of diminished ovarian reserve (DOR) patients in in vitro fertilization and embryo, transfer (IVF-ET).

METHODSTotally 84 DOR patients undergoing IVF-ET were assigned to the experimental group (SGRS Chinese herbs as adjuvant therapy) and the control group according to random digit table, 42 in each group. Patients in the control group received controlled ovarian hyperstimulation (COH) and IVF-ET. Those in the experimental group additionally received basic formula of SGRS method, one dose per day. The dose and use time of recombinant follicle-stimulating hormone (r-FSH) were recorded during ovarian stimulation process. On the injection day of human chorionic gonadotropin (HCG) and serum levels of estradiol (E2) on the oocyte retrieval day were determined using chemiluminescent method. E2 contents in the follicular fluid on the oocyte retrieval day were detected using ELISA. The total number of retrieved oocytes, the number of mature oocytes in metaphase II (M II), the number of normal fertilization [with two pronucleus (2PN)], the number of portable embryos, and the number of good quality embryos were recorded. The correlation between Chinese medical adjuvant therapy and the aforesaid indices were observed. The clinical pregnancy rate and the abortion rate were finally compared between the two groups.

RESULTSThe total dose of r-FSH, the E2 level on HCG injection day, the serum E2 level on the oocyte retrieval day, the number of retrieved oocyte, the number of oocytes in M II the number of oocytes with 2PN, the number of portable embryos, and the number of good quality embryos were all positively correlated with Chinese medical adjuvant therapy (P < 0.05, P < 0.01). Compared with the control group, serum E2 levels on the HCG injection day and the oocyte retrieval day obviously increased, the number of retrieved oocytes, the number of oocytes in M II, and the number of portable embryos were increased more in the experimental group with statistical difference (P < 0.05, P < 0.01). There was no statistical significance in the clinical pregnancy rate or the abortion rate between the two groups (P > 0.05).

CONCLUSIONSGRS Chinese herbs as adjuvant therapy could improve ovarian responsiveness of DOR patients undergoing IVF-ET, increase the number of retrieved oocytes, elevate the quality of oocytes and the number of embryos.

Adjuvants, Pharmaceutic ; therapeutic use ; Chorionic Gonadotropin ; Drugs, Chinese Herbal ; therapeutic use ; Embryo Transfer ; methods ; Estradiol ; Female ; Fertilization in Vitro ; methods ; Follicle Stimulating Hormone ; metabolism ; therapeutic use ; Follicular Fluid ; Humans ; Medicine, Chinese Traditional ; Oocyte Retrieval ; Oocytes ; Ovarian Hyperstimulation Syndrome ; Ovulation Induction ; Pregnancy ; Pregnancy Rate

ObJective To explore the value of acute physiology and chronic health evaluation Ⅲ(APACHE Ⅲ ) score and the concentration of serum cholinesterase (ChE) in predicting the condition and prognosis of patients with severe acute pancreatitis (SAP) within 24 hours afar hospitalization.Methods Sixty-two SAP patients were enrolled and APACHE Ⅲ score was assessed and the concentration of serum ChE was detected within 24 hours after hospitalization.The correlation between the concentration of serum ChE,APACHE Ⅲ score and the condition and prognosis was analyzed.Results There were 44 survivalcases and 18 dead cases.The APACHE Ⅲ score of the surval patients was significantly lower than that of the dead patients [(52.16 ± 13.76) scores vs.(97.10 ± 15.85) scores] (P＜0.01).The concentration of serum ChE of survival patients was significantly higher than that of the dead patients [ (3685 ± 466) U/L vs.(2109 ± 345) U/L] (P＜ 0.01 ).The higher APACHE Ⅲ score was,the lower the serum ChE concentration was,and the higher the mortality rate was.APACHE Ⅲ score and the concontration of serum ChE both had statistical significances compared with the prognosis in the Logistic regression analysis (P =0.0043,0.0075);APACHE Ⅲ score (95％ CI 1.0306-1.1507),the concentration of serum ChE (95％ CI0.9986-1.0125 ).ROC areas under curve (AUC) of APACHE Ⅲ score,serum ChE concentration with the prognosis were 0.936 and 0.882,respectively.There was no significant difference (P=0.0820).In combined prediction of APACHE Ⅲ score and serum ChE concentration,AUC was 0.952,and its predicting accuracy was higher than either APACHE Ⅲ score or serum ChE concentration (P=0.0016,0.0027).Conclusions APACHE Ⅲ score and the concentration of serum ChE both are significantly correlated with the condition and prognosis of SAP patients.Their combined detection can significantly improve the accuracy of prognosis judgement and provide some clinical guidances for treatment.

Objective To study the clinical characteristics,pathology,and treatment for papillary carcinoma of the breast.Methods The clinical data of 17 patients of papillary carcinoma of the breast admitted in the First Affiliated Hospital of Wen Zhou Medical College were retrospectively analyzed.Results Papillary carcinoma of the breast accounted for 0.64％ of all breast cancer cases hospitalized during last 10 years.All cases had palpable lumps in the breast.12 cases received modified radical mastectomy,2 cases received simple mastectomy,2 cases underwent breast conservation therapy,1 case underwent simple mastectomy plus sentinel lymph node biopsy.15 patients received postoperative chemotherapy,among those 5 cases also received radiotherapy.During a 32.5-month median follow-up ( 1 month to 8 years),one case with bone metastases died 2 years postoperatively and another one died of multimetastases 7 years later.Conclusions The prognosis of papillary carcinoma of the breast is closely related with its pathology type.For intraductal papillary carcinoma low-traumatic therapy is applicable,while in case of infiltrating papillary carcinoma or invasive micropapillary carcinoma ( IMPC ),more aggressive therapies like that adopted for infiltrating ductal carcinoma are recommended.