DNA, Neoplasm ; analysis ; Female ; Flow Cytometry ; Humans ; Hydatidiform Mole ; diagnosis ; genetics ; In Situ Hybridization, Fluorescence ; Microsatellite Repeats ; Polymerase Chain Reaction ; Polymorphism, Restriction Fragment Length ; Pregnancy ; Triploidy ; Uterine Neoplasms ; diagnosis ; genetics

Background The tissue-engineered cornea is becoming the hot spot in the ophthalmologic field,while the research of corneal substitute is in the ascendant,because it is more similar to the corneal morpha and easy to survive in vivo.Objective This study was to investigate the biocompatibility of recombinant human type-Ⅲ collagen/poly9 ( 3-( methacryloylamino ) propyl dimethyl ( 3-sulfopropyl ) ammonium hydroxide ) ( PMPDSAH ) interpenetrating polymer network (IPN) (RHC-Ⅲ/PMPDSAH IPN) hydrogel as a tissue-engineered cornea in rabbit eye and its feasibility as the corneal substitute.Methods One hundred and eight rabbits were randomly divided into experimental group( 90 rabbits) and normal control group ( 3 rabbits),and 15 rabbits ( 30 eyes ) used as the donor corneas.RHC-Ⅲ/PMPDSAH IPN,NGF PMPDSAH IPN and corneal grafts were lamellarly transplanted into the right eyes in RHC-Ⅲ/PMPDSAH IPN group,NGF PMPDSAH IPN group and allograft group respectively.The corneal transparency and neovascularization were examined and scored under the slim lamp and compared among three groups using Kraskal-Wallis H test.The corneal epithelization time was observed and compared among these three groups using one way analysis of variance and LSD-t test.The histological examination of corneas was performed at the 3rd day,1st and 2nd week,1 st,3rd and 6th month after the surgery.The immunohistochemistry was used to detect the expression of K3 in cornea at the 6th month.Results The grafts were well attached in RHC-Ⅲ/PMPDSAH IPN group,NGF PMPDSAH IPN group and allograft group,and no rejection reaction was found throughout 6-month following up.Compared with normal control group,no significant differences were found in the scores of corneal opacification and neovescularization in these three groups (x2 =4.34,P =0.23 ;x2 =2.60,P =0.46 ) at the 6th month.NGF PMPDSAH IPN group achieved reepithelialization in (4.97±0.63) days and was obviously shorted than that in RHC-Ⅲ/PMPDSAH IPN group and allograft group ( t =11.97,P =0.00; t =5.80,P =0.00).The re-epithelialization time in RHC-Ⅲ/PMPDSAH IPN was (6.86±0.71) days,and that of allograft group was (5.87±0.43 ) days,showing a significant difference ( t =6.32,P =0.00).Hematoxylin-eosin staining results demonstrated that implanted materials integrated into the host corneal tissue well and support corneal epithelialization.Part of the material degraded at the 2nd week and degraded completely 1 month later.Regular alignment and distribution of collagen fibers were seen in the regenerated cornea and were similar to those of the normal stroma in 6 months.Immunohistochemistry showed the positive expression of keratin-3 in corneal epithelial cells.Conclusions RHC-Ⅲ/PMPDSAH IPN has a good biocompatibility without toxicity to corneal tissue.Furthermore,NGF can promote the corneal wound-healing and re-epithelialization.The material can be used as safe and reliable corneal substitute after improving the mechanical strength.

Objective To evaluate the effectiveness of suberselective uterine arterial embolization for uterine fibroids.Methods Uterine arterial embolization with golyvimylalcohol(PVA) particles or Iodized oil and Gelfoam or Pingyangmycin lipiodol and Gelfoam was performed in 182 patients with uterine fibroids.Results Bilateral and unilateral superselective uterine arterial embolization were performed in 173 cases and 9 cases respectively. 6～28 months (mean 11 months) after the procedure, complete disappearance of tumor(16 cases), an average shinkage of 67% in tumor volume(152 cases) and a mean 42% reduction of uterine volume were obtained in 168 followed-up cases. The clinical symptoms were relieved significantly.The main side effets were hypogastic pain(135/182).Conclusion Superselection uterine arterial embolization is an effective and microinvasive method in treating uterine fibroids.

Objective To explore the changes in inflammatory reactions in tail-suspension mice infected by Klebsiella pneumoniae from spaceflight.Methods Tail suspension was used to simulate the physiological effects of microgravity.C57BL/6 mice were randomly divided into control (Con),control+K.pneumoniae T16-169 (Con+T16-169),tail suspension (TS) and tail suspension+K.pneumoniae T16-169 (TS+T16-169) groups.The level of inflammatory cytokines TNF-α,IL-6 and IL-1β mRNA in lung tissue and the plasma cytokine concentration were detected by RT-qPCR and xMAP technology,and HE staining was used to represent the morphological changes in lung tissue.Results Compared with the control group,the expression of inflammatory cytokines in lung tissue and plasma concentrations of all experimental groups were increased,and the difference in TS+T16-169 group was the most significant (P<0.01 or P<0.001).HE staining showed that the lung tissues in Con+T16-169 and TS+T16-169 groups were damaged in different degrees,and the damage of TS+T16-169 group was the most serious.Conclusion The K.pneumoniae from spaceflight significantly increases the expression of inflammatory cytokines in lung tissue and plasma concentrations after infecting tail-suspension mice,and induces more serious damages to the lung tissue,which suggests that inflammatory reactions can be increased in tail suspension mice infected by K.pneumoniae from spaceflight.

This study was aimed to investigate various factors influencing long-term survival in adult AML patients with fusion gene aml1/eto positive. A single institutional retrospective study with long-term follow-up was performed to better define the prognostic factors for AML patients with aml1/eto positive. Newly diagnosed 89 adult AML patients with aml1/eto positive were followed up for 1 to 42 months (median 24 months) from January 2004 to July 2008. Univariate and multivariate analysis of potential factors influencing survival and prognosis were carried out by using Log-Rank and Cox regression method, including sex, age, initial WBC counts, extramedullary leukemic disease, central nervous system leukemia (CNSL), chromosome aberrations, immunophenotype, first induction regimen, chemotherapy course to complete remission (CR), time from induction therapy to CR, negative or positive rate of aml1/eto and allogeneic hematopoietic stem cell transplantation and so on. The results showed that the estimated 5-year overall survival (OS) and relapse-free survival (RFS) were (50.0 +/- 2.3)% and (47.0 +/- 1.9)% respectively in follow-up of 89 patients for 1 - 42 months (mean 24 months). Univariate analysis revealed that initial WBC counts, CNSL, chemotherapy course to CR, time from induction therapy to CR, persistent negative in remission and allogeneic hematopoietic stem cell transplantation were important prognostic factors for long-term surviva1. Multivariate study demonstrated that initial WBC counts, CNSL, CD56 positive, negative or positive rate of aml1/eto, time from induction therapy to CR, persistent negative result of RT-PCR assay in remission and allogeneic hematopoietic stem cell transplantation were all critical factors in relation to OS and RFS. It is concluded that Chinese adult AML patients with fusion gene aml1/eto positive have some different characteristics as compared with patients from other countries, a relatively poor outcome is observed in patients, HSCT should be recommended to adult AML patients.
Adolescent ; Adult ; Core Binding Factor Alpha 2 Subunit ; genetics ; Female ; Humans ; Leukemia, Myeloid, Acute ; genetics ; mortality ; Male ; Middle Aged ; Oncogene Proteins, Fusion ; genetics ; Prognosis ; RUNX1 Translocation Partner 1 Protein ; Retrospective Studies ; Survival Analysis ; Young Adult

OBJECTIVE To explore the effects of perinatal inflammation on the expression of proin-flammatory cytokines and DMEs (drug metabolism enzymes) in offspring mice. METHODS C57BL/6 maternal mice were administrated with single dose 100 μg·kg-1LPS(lipopolysaccharide)or saline(vehicle) during gestation (day 10 after fertilization). Offspring mice were sacrificed at 30 d after birth and liver samples were collected.Real-time PCR was adopted to test the mRNA expression of proinflammatory cytokines (Nrlp3 and IL-1β), nuclear receptors (Pxr and Car), and DMEs (Cyp3a11, 2b10, 1a2, and Ugt1a1).RESULTS Gender different expression of candidate genes was observed.The expression of Car,in the maternal injection of LPS groups,was significantly decreased in both female and male offspring (n=3-8/group, P<0.01). Concomitantly, a significantly lower expression of Cyp3a11 was found in both female and male offspring (P<0.01, P<0.05, respectively). Furthermore, the expression of Ugt1a1 was reduced in male offspring following maternal administration of LPS (P<0.01). In male offspring, Nrlp3 expression was specially decreased(P<0.05).Interestingly,there was an approximately 66% reduction in mRNA level of Cyp1a2 in female offspring (P<0.01), while in male offspring Cyp1a2 expression showed an increased trend (P>0.05) compared with vehicle group. The expression of Pxr, Cyp2b10, and IL-1β was no difference between LPS treatment group and vehicle group(P>0.05).CONCLUSION Maternal LPS administration affects the expression of proinflammatory cytokines, nuclear receptors and DMEs in mouse offspring.

OBJECTIVE To demonstrate the long-or short-term impacts of neonatal Pxr(pregnane X receptor) agonists exposureon DMEs (drug metabolism enzymes) expression in adulthood. METHODS C57BL/6 mice(day 5,postnatal)were injected with different doses(0,50,100,150,200 mg·kg-1·d-1, constitutive 4 d)of PCN(pregnenolone-16a-carbonitrile).Mice at different ages(day 5,10,15,25,postna-tal)were administrated with 200 mg·kg-1·d-1PCN in constitutive 4 d.All mice were sacrificed at day 60 after birth. Liver samples were collected for detecting the expression of Pxr target genes. RESULTS Compared with vehicle group, the significant inductions of Cyp2b10, Cyp3a11 and Pxrwere observed in high dose groups (150, 200 mg·kg-1·d-1, 5-8 d after birth) both in male and female mice (n=4-9/group,P<0.05).Furthermore,high dose groups(200 mg·kg-1·d-1,5-8 d after birth)were found to have higher mRNA expression levels of Cyp2a4,Ugt1a1,Abcc4,and Oatpla4 in female mice,while Papss2 in male mice compared with vehicle groups (n= 4-9/group, P<0.05). Interestingly, a decreased mRNA expression of Sult2a1 was identified in 200 (5-8 d) groups (n=4-9/group, P<0.05). Consistent with these results, the protein expression of Cyp3a11 was only increased in 200 (5-8 d) groups compared with the vehicle groups(n=3/group,P<0.05).Importantly,the persistent impacts on DMEs only occurred in day 5 and day 25 treatment groups,not day 10 and day 15 groups(n=4/group).CONCLUSION Neonatal Pxr activation has a long-term effect on the expression of DMEs in C57BL/6 mice.Dose and treatment exposure time are two key factors involved in this permanent alteration procedure.

Objective To establish a RP-HPLC method for the determination of the blood concentration of paeoniflorin which was produced by seven kinds of warming-inside drugs (WID) being used with the promoting-blood drugs (PBD) individually and to explore the mechanism of PBD and WID compound prescription. Methods The blood concentration of peaoniflorin in mouse plasma was determined by HPLC after ig seven kinds of WID being compatible with Radix Paeoniae Rubra (RPR) to mice separately. Results Fructus Piperis (FP), Cortex Cinnamoni (CC), Fructus Evodiae (FE), Fructus Foeniculi (FF), and Pericarpium Zanthoxyli (PZ) compound prescription with RPR can increase the blood concentration of paeoniflorin in different degrees (P

Objective To establish an analytical method for determination of ferulic acid inDanggui HujiaoRadix Angelicae Sinensis and Fructus Piperis]) Decoction in mouse plasma.Methods HPLC method was used.The conditions of chromatography: Kromasil C 18250 mm?4.6 mm, 7 ?m) was used with a mobile phase of CH3OH-H2O-CH3COOH (36.4∶63∶0.6).Flow rate was 1.0 mL/min.The detecting wavelength was 322 nm.External standard method was quantitative analysis method.Results The ferulic acid could be totally separated from other ingredients in plasma.The linear range was 1.88—188.00 ng/?L (r=0.999), the lowest detectability was 0.47 ng/?L, and the average recovery was 94.85%.Conclusion This method provides an accurate and sensitive way in detecting blood concentration of ferulic acid and studying in pharmacokinetics.

BACKGROUND: This study aimed to explore the effects of TNF-α on the expression of IP3R1 mRNA and protein in human mesangial cells (HMCs), and to elucidate the mechanism of TNF-α relating to IP3R1 expression in the occurrence of hepatorenal syndrome (HRS). METHODS: HMCs were stimulated by tumor (TNF-α) with 100 ng/mL for different hours (2, 4, 8, and 24 hours). The expression changes of IP3R1 mRNA and protein were detected by quantitative real-time polymerase chain reaction and immunoblotting. Several inhibitors including D609, U73122, PP1, safingol, rottlerin and non-radioactive protein kinase C (PKC) were used to examine the mechanism of signal transduction of TNF-α-regulated IP3R1 in HMCs. RESULTS: The levels of IP3R1 mRNA at 2 hours after TNF-α exposure were significantly enhanced and peaked at 8 hours in HMCs (P<0.01), then descended at 24 hours (P<0.01). The levels of IP3R1 protein at 4 hours after TNF-α exposure were obviously increased and peaked at 24 hours after TNF-α exposure (P<0.01). Compared to the control group, safingol (PKCα inhibitor) and D609 (phosphatidylcholine-specific phospholipase C inhibitor) significantly blocked the TNF-α-induced expression of IP3R1 mRNA (3.30±0.81 vs. 1.95±0.13,P<0.05; 2.10±0.49,P<0.01) and IP3R1 protein (3.09±0.13 vs. 1.86+0.39,P<0.01; 1.98±0.02,P<0.01). TNF-α promoted PKCα activation with maximal PKCα phosphorylation that occurred 8 hours after stimulation measured by non-radioactive PKC assay, and the effect was markedly attenuated by pretreatment with D609 or safingol. CONCLUSION: TNF-α increased the expression of IP3R1 and this was mediated, at least in part, through the PC-PLC/PKCα signaling pathways in HMCs.