Objective To explore the contribution of endoplasmic reticulum stress to cardiac myocyte apoptosis in mouse congestive heart failure induced by Doxorubicin.Methods Doxorubicin (DOX)was administered intraperitoneally to rats,2 mg/kg doses over 8 weeks.Echocardiographic and hemodynamics measurements were obtained at 8 weeks after treatment.Then left ventricular (LV) samples were collected.The successfully established rats were divided into 3 groups (Fu Shen Ke Li 40 mg/kg,60 mg/kg,and 80 mg/kg).After 5 weeks post the operation,an echocardiographic was performed on all the rats under narcotism,Western blot to test the B-cell lymphoma-2 (Bcl-2),myeloid cell leukemia-1 (Mcl-1),Bcl-2-Associated X (Bax),Caspase-3,C/EBP homologous protein (CHOP),and 78-kDa glucose-regulated protein(GRP78),and reverse transcription-polymerase chain reaction (RT-PCR) to test the mRNA expression levels of Mcl-1,and NOXA.Results The left ventricular end-diastolic diameter (LVEDD),left ventricular end systolic diameter (LVESD),left ventricular ejection fraction (LVEF) prompted modeling success The left ventricular end-diastolic diameter (LVEDD),left ventricular ejection fraction (LVEF),and fractional shortening (FS) have been improved in high and middle groups of Fu Shen Ke Li.Compared to the model group,higher expression levels of Bcl-2,and Mcl-1 were,lower expressions of Bax,NOXA,CHOP,and GRP78 were (P ＜ O.05) in 3 groups of Fu Shen Ke Li.Compared to the model group,there were higher mRNA expression level of Mcl-1 was,lower mRNA expression of NOXA was (P ＜ 0.05) in 3 groups of Fu Shen Ke Li.Conclusions Fu Shen Ke Li depresses endoplasmic reticulum stress,which can reduce the apoptosis of myocardial cells,and ultimately achieve the purpose of treatment of heart failure.

Biomedical Research ; trends ; Breast Neoplasms ; metabolism ; Female ; Humans ; Mucins ; physiology ; Neoplasm Proteins ; physiology

Objective To investigate the expression of tumor stem cell marker aldehyde dehydrogenase -1 (ALDH-1)in primary tumor and lymph node metastases of lymph node-positive invasive micropapillary carcinoma ( IMPC) of breast and its clinical significance .Methods The expression , location and distribution of ALDH-1 were examined by immunohistochemical staining in 103 cases with lymph node metastasis of IMPC and 110 cases with lymph node metastasis of invasive ductal carcinoma not otherwise specified ( IDC-NOS) without preoperative chemotherapy and radiotherapy , and their relationship with clinicopathological characteristics and prognostic sig-nificance was analyzed .Results ( 1 ) The positive expression rate of ALDH-1 was significantly higher in IMPC group of primary tumor and lymph node metastases (37.9% in primary tumor, 39/103 cases;47.6% in lymph node metastases, 49/103 cases)than in IDC-NOS group(21.8% in primary tumor, 24/110 cases; 23.6% in lymph node metastases, 26/110 cases)(P<0.05).(2)Expression of ALDH-1 had a significantly positive corre-lation with tumor size , histological grade , lymph node metastasis , ER-negative status , PR-negative status , and HER2 overexpression in primary tumor and lymph node metastases of IMPC (P<0.05).(3)The disease-free sur-vival of IMPC group patients was significantly shorter than that of IDC-NOS group patients(P=0.003).In IPMC patients with lymphode metastases , the disease-free survival of patients with ALDH-1 positive in primary tumor and lymph node was significantly lower than patients with ALDH-1 negative expression (P<0.05).In multivari-ate analysis, positive expression of ALDH-1 in metastatic lesions was associated with worse prognosis ( P =0.005).Conclusion ALDH-1 can be used as an independent factor for predicting prognosis of patients with lymph node-positive breast IMPC and the existence of stem cells in IMPC tumor cells may represent high IMPC lymphatic invasion , lymph node metastasis and high resistance .

Objective To explore changes humoral immune factors and MDA in DEACMP patients.Methods 40 cases with carbon monoxide poisoning delayed brain were selected to be experiment group.40 cases of healthy people were selected to be control group.IL-2,IL-6,IL-10 and MDA were before and after treatment.Results IL-2,IL-6 of the experiment group were lower,IL-10,MDA were higher than the control group before treatment (P<0.05),both of IL-2,IL-6,IL-10 and MDA were recovery after the treatment (P<0.05).IL-6 of the experiment before treatment was significantly correlated with MMSE score(r =0.34,P <0.05).More severe cognitive impairment, the higher the level of concentration of IL-6(P<0.05). Conclusion The immune inflammatory cytokines and MDA play an important role in acute carbon monoxide poisoning delayed encephalopathy pathogenesis.Detection of the levels for judging the severity of the patient’s condition and prognosis has important significance.

Objective To analyze the risk factors for thrombosis by investigating the incidence of central venous catheter‐related thrombosis in elderly patients .Methods Four hundred and five elderly patients who underwent central venous catheterization were divided into femoral vein group(n=46) ,internal jugular vein group (n=40) and subclavian vein group (n=319) according to their catheter position ,or into thrombosis group (n=31) and non‐thrombosis group (n=374) according to the incidence of central venous catheter‐related thrombosis .T heir gender ,age ,basic diseases ,catheter position ,retention time of catheter ,and complications of central venous catheter‐related thrombosis were retrospectively analyzed .Results The incidence of central venous cathe‐ter‐related thrombosis was significantly lower in subclavian vein group than in internal jugular vein group and femoral vein group (5 .0% vs 15 .0% ,5 .0% vs 19 .6% ,P<0 .05 ,P<0 .01) .The percentage of past venous thrombosis history was significantly higher in thrombosis group than in non‐thrombosis group (19 .4% vs 6 .4% ,P<0 .05) .Conclusions Subclavian vein catheterization can significantly reduce the incidence of central venous catheter‐related thrombosis and past ve‐nous thrombosis history can predict the incidence of central venous catheter‐related thrombosis in elderly patients .

15-methyl prostaglandin F2a (PGF2a) in a dose of 0.2 rag/kg B. W.combined with testosterone propionate ( TP ) in a dnse of 25mg/ kg B. W. was better than 15-methyl PGF2a alone in a dope of 0.2mg/ kg B. W. on termination of early pregnancy in rats.The endometriurn necrosis only in the uterine deciduous of rats treated with TP.All the above results show that the combined administration of 15 methyl PGF2a and TP is better than the administration of 15-methyl PGF2a alone. TP can probably strengthen the abortion effect of 15-rnethyl PGF2a.

Antigens, Neoplasm ; genetics ; metabolism ; Breast Neoplasms ; enzymology ; genetics ; metabolism ; DNA Topoisomerases, Type II ; genetics ; metabolism ; DNA-Binding Proteins ; genetics ; metabolism ; Female ; Gene Expression Regulation, Neoplastic ; physiology ; Humans

Objective:To obtain crude mutacin produced by clinical isolate of Mutans streptococci (Ms) and to test its antibacteria activity. Methods:The mutacin in supernatant of in vitro cultured clinical isolate of Ms was extracted by chloroform, the antibacteria activity and heat stability of the crude extract were tested by bacteria culture technique. Results:Crude extract of protein was obtained fom clinical isolate of Ms. 10 ml of the liquid extract produced a 19 mm inhibitory zone in cultrue dish, indicating its antibacteria activity. The activity could maintain in 80 ℃ for 120 min, indicating its heat stability. Conclusion: The crude extract can represent the antibacteria activity and heat stability of mutacin.

With the increased survival of the low birth weight,brain injury in the premature infants be-comes a problem of enormous importance. The introduction of the term “encephalopathy of prematurity” is the current recognition that preterm brain injury is a complex of white and gray matter damage. The combination of white matter injury and neuronal/axonal deficits constitutes encephalopathy of prematurity. The preterm infants develop primary destructive brain lesions,secondary degeneration and disturbance of maturation from hypoxia-is-chemia and inflammation,which leads to cerebral palsy,cognitive,behavioral,or language deficits. This article reviews the neuropathology,pathogenesis,therapy and neurodevelopmental disability of encephalopathy of pre-maturity.

Objective To understand the relationship between Toxoplasma gondii infection and pet-breeding and hygienic status. Methods One or two districts were chosen from Jining City, Za-ozhuang City and Linyi City as study areas and the questionnaire surveys were carried out for hygienic status, etc. The pet-breeders and non-pet-breeders were paired by sex, age, living place and occupation so on in a ratio of one to one. Blood samples taken from each were tested for antibodies against T. gondii with ELISA in a double-blind method. Results The total infection rate was 14. 25%, much higher than that investigated ten years ago (1. 53%). The mean positive infection rate was 19.91% in the pet-breeding groups and 8.60% in the control groups (x2 = 11.57, P