Abstract?AlM:To investigate the influence of lOL refractive index ( Rl ) on measurement of straylight following cataract surgery.?METHODS:ln this case-control study, 77 eyes of 77 age-related cataract patients who underwent cataract phacoemulsification with posterior chamber aspherical arylic lOL implantation surgery in the Eye Hospital of China Medical University from Aug 2013 to Mar 2014, with a best corrected visual acuity ( BCVA) of 0. 5 or better, were classified into 3 groups randomly using 3 types of lOL: Tecnis ZCB00 Group ( Rl = 1. 47, 22 eyes of 22 subjects); Hoya PY60AD Group ( Rl=1. 52, 24 eyes of 24 subjects);Alcon SN60WF or lQ Group ( Rl=1. 55, 31 eyes of 31 subjects ) . BCVA, pupil size, astigmatism, axial length, intraocular straylight were measured respectively.? RESULTS: Age, axial length, BCVA, pupil size, astigmatism of the three groups were not significant difference (P>0. 05). The straylight of Tecnis, Hoya, lQ group were 1.04±0. 15, 1. 19±0. 14, 1. 14±0. 18. Straylight levels had significant differences among three groups ( F=5. 352, P = 0. 007 < 0. 05 ). There was no significant correlation between BCVA and straylight value (r=-0. 133,P=0. 124>0. 05).?CONCLUSlON:Patients chosen the higher Rl lOL may have a higher straylight level after the surgery.

Female ; Humans ; Lymphoma, T-Cell ; diagnosis ; Middle Aged ; Multiple Myeloma ; diagnosis

Objective To investigate the effect of fluid shear stress (FSS) on the expression of B lymphoma MoMLV insertion region 1 (Bmi-1) in bone mesenchymal stem cells (BMSCs) and possible signal transduction mechanism.Methods BMSCs were isolated from SD rats and FSS at different magnitude (0.5,1.5,3.0 Pa)and under different time phase (1,2,6,24 h) were loaded by parallel-plate flow chamber system.The expression of Bmi-1 was measured by real-time RT-PCR at mRNA level and the levels of phosphorylated Akt (p-Akt)and extracellular signalregulated kinase 1/2 (p-ERK1/2) were detected by Western blotting.The signaling inhibitors,wortmannin (PI3K specific inhabitor) and PD98059 (ERK1/2 specific inhabitor),were used to investigate possible mechanical signal transduction pathway.Results Bmi-1mRNA expression increased when BMSCs were exposed to 1.5 Pa FSS for 1 h and reached the peak at 24 h.All FSS with different magnitude could increase Bmi-1 expression,especial at high FSS (3.0 Pa).Meanwhile,FSS resulted in a significant activation of p-Akt and p-ERK1/2 in BMSCs.After treated with wortmannin,the expression of Bmi-1 was inhibited prominently,however,PD98059,the expression of Bmi-1 did not change.Conclusions FSS can activate the expression of Bmi-1,the amount of Bmi-1 expression was closely related to the stimulating time and the magnitude of FSS,and Akt signal molecule plays an important role during the process.These findings provide significant references for studying the mechanical biological mechanisms of stem cell differentiation.

OBJECTIVETo explore the clinicopathological features of non-familial colorectal cancer with high-frequency microsatellite instability (MSI-H).

METHODSOne hundred and fifty patients with colorectal cancer who had no family history were enrolled in this study from June 2006 to June 2008. Five standard microsatellite loci including BAT25, BAT26, D2S123, D5S346, and D17S250 were amplified with immunofluorescent polymerase chain reaction. The patient information including age, sex, and tumor location was recorded. Pathological features including differentiation, mucinous differentiation, histological heterogeneity, and Crohn's-like reaction were observed under light microscope. The presence of tumor-infiltrating lymphocytes (TLs, CD4+ and CD8+) was detected by means of immunohistochemistry. A regression equation was obtained by stepwise logistic regression analysis to evaluate the relationship between MSI-H phenotype in colorectal cancer and pathological features.

RESULTSMSI-H phenotype occurred in 13.33% of the 150 patients with non-familial colorectal cancer. Poor differentiation, histological heterogeneity, Crohn's-like reaction, and presence of TLs were found to be independent factors to identify MSI-H non-familial colorectal cancer. Logistic regression equation showed an overall sensitivity of 70.0%, specificity of 99.2%, and accuracy of 95.3% in identifying MSI-H non-familial colorectal cancer.

CONCLUSIONMSI-H non-familial colorectal cancer manifests specific pathological features, which may be relied upon for effective identification of that disease.

Adult ; Aged ; Aged, 80 and over ; Base Sequence ; Colorectal Neoplasms ; genetics ; DNA Primers ; Female ; Humans ; Immunohistochemistry ; Logistic Models ; Male ; Microsatellite Repeats ; genetics ; Middle Aged ; Phenotype ; Polymerase Chain Reaction

OBJECTIVETo explore the effect of CMV gB genotypes on viral load and treatment time in patients with CMV infection after hematopoietic stem cell transplantation (HSCT).

METHODSViral load was detected by real-time (RT) quantitative polymerase chain reaction (PCR) (Q-PCR), CMV gB genotypes by PCR restriction fragment length polymorphism (RFLP) (PCR-RFLP) in 115 patients with CMV infection (CMV-DNA positive) after HSCT during July 2004 and May 2010.

RESULTS(1) The distribution of CMV gB genotypes in HSCT recipients were as following: gB1, 42/115 (36.52%); gB2, 3/115 (2.61%); gB3, 43/115 (37.39%); gB4, 2/115 (1.74%). 20 patients (17.39%) had a combination of 2 different CMV genotypes and 5 patients (4.35%) had a CMV variant that lacked an RsaI digestion site, herein named gB5. (2) The median viral load were 2.7×10(3)(1.81×10(3) ∼ 6.03×10(4)) in gB1, 4.0×10(3) (1.32×10(3) ∼ 6.39×10(4)) in gB3 and 1.2×10(4)(2.28×10(3) ∼ 6.50×10(5)) in mixed gB. There was no statistical difference in viral load between gB1 and gB3 (P > 0.050). There was significantly statistical difference in viral load between single-gB (gB1 or gB3) and mixed-gB (P < 0.05). (3) The median treatment time was 17 days in mixed-gB and 14 days in single-gB. There was significantly statistical difference between two groups (P < 0.05). Conclusion gB genotype may have an impact on CMV DNA load and treatment time in HSCT recipients with CMV infection.

Adolescent ; Adult ; Cytomegalovirus ; genetics ; Cytomegalovirus Infections ; virology ; DNA, Viral ; isolation & purification ; Female ; Genotype ; Hematopoietic Stem Cell Transplantation ; adverse effects ; Humans ; Male ; Middle Aged ; Viral Envelope Proteins ; genetics ; Viral Load ; Young Adult

Pogostemon cablin is a famous southern medicine.As the important raw material for modern medicine and industry,Pogostemon cablin becomes required with a large marketing demand.However,due to the serious continuous cropping obstacles in the growth process of Pogostemon cablin,the aggravation of diseases of Pogostemon cablin and the degradation of its quality arose.This paper outlined the ecological factors such as climate factors,soil factors and topographic factors suitable for the growth of Pogostemon cablin,analyzed the continuous cropping obstacles and diseases arising in the cultivation,reviewed the current ecological planting mode of Pogostemon cablin such as crop rotation,intercropping,relay-cropping and under-forest planting,and also made a comprehensive evaluation of the economic benefits,ecological benefits and social benefits of the ecological planting mode of Pogostemon cablin,aiming to provide a theoretical basis and a reference for the promotion of the ecological planting mode of Pogostemon cablin.

OBJECTIVETo analyze the high risk factors for tumor recurrence in short term after hepatectomy for the patients with primary hepatocellular carcinoma (HCC).

METHODSFive hundreds and two patients with primary HCC underwent hepatectomy were included from January 1997 to December 2008. Among these patients, males were 419 cases and females were 83 cases. The age was 14 to 82 years (average age 54 years). The results of evaluation on 2 months after resection and tumor recurrence and survival were analyzed.

RESULTSAccording to the operative and pathologic findings and the evaluation on 2 months after hepatectomy, the patients with vascular invasion, palliation resection, cutting edge pathologic residual tumor, lymph notes metastasis, serum AFP level continuing higher after resection or(and) positive TACE (tumor dyeing on TACE within 1 month and a deposit of lipiodol on CT scan) were high risk factors (high-risk group, 106 cases, 21.1%), the recurrence-free survival was 22%, 9% and 3% (1, 2 and 5 year) and overall survival was 52%, 25% and 8%. On the non-high risk group patients, the recurrence-free survival was 84%, 67%, 42% and 31% (1, 2, and 5 year) and overall survival was 97%, 85%, 56% and 35%. The bigger tumor, poor differentiation, tumor invading to liver capsule, satellite focus and TNM III-IV stage in high-risk groups were more significantly than that in non-high-risk groups.

CONCLUSIONThe vascular invasion, palliation resection, cutting edge pathologic residual tumor, lymph notes metastasis, serum AFP level continuing higher or (and) positive TACE within 2 months after resection are high risk factors for HCC patients in short term after hepatectomy, which mean tumor remnant.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Carcinoma, Hepatocellular ; mortality ; pathology ; surgery ; Disease-Free Survival ; Female ; Hepatectomy ; Humans ; Liver Neoplasms ; mortality ; pathology ; surgery ; Male ; Middle Aged ; Neoplasm Recurrence, Local ; mortality ; pathology ; Prognosis ; Retrospective Studies ; Risk Factors ; Young Adult

OBJECTIVETo explore the relationship between CMV reactivation and KIR haplotype or HLA-Cw genotype in patients after unrelated-donor hematopoietic stem cell transplantation (HSCT).

METHODSFrom January 2003 to December 2008 the HLA-Cw/KIR genotype of 48 patient-donor pairs were determined by polymerase chain reaction with sequence specific primers (PCR-SSP) and sequence specific nucleotide (PCR-SSOP). Posttransplant CMV reactivation was performed by immune histochemically assay.

RESULTSOf 48 patients, 15 were transplanted from unrelated donors with an antigen mismatch for HLA Cw and 33 patient-donor pairs were matched for HLA-Cw. The CMV reaction rate was 66.7% for HLA-Cw mismatch group and 48.5% for HLA-Cw match group (chi(2) = 1.39, P = 0.2375). Thirty-seven donor-patients pairs belonged to group C1 and 11 to group C2, and CMV reaction rate was 64.9% in group C1 and 18.2% in group C2 (chi(2) = 18.13, P < 0.0001). Twenty-six patients received graft from KIR haplotype A (group A donor) and 22 from KIR haplotype B donors (group B donor) and CMV reaction rate was 57.7% in group A donor and 50.0% in group B donor (chi(2) = 0.28, P = 0.5941). The number of donor activating KIRs (aKIRs) was less than that of recipient aKIRs in 34 patient-donor pairs in which the CMV reaction rate was 70.6%, and the number of donor aKIRs was more than that of recipient aKIRs in 14 patient-donor pairs in which the CMV reactivation was 14.3%. There was a significan difference between the two group (chi(2) = 12.44, P = 0.0004).

CONCLUSIONKIR and HLA-Cw genotypes influence the rate of CMV reactivation following non-T cell deleted unrelated donor hematopoietic cell transplantation.

Genotype ; HLA-C Antigens ; genetics ; Haplotypes ; Hematopoietic Stem Cell Transplantation ; Humans ; Receptors, KIR ; genetics

OBJECTIVETo explore the possible role of CD28/CTLA-4 co-stimulators in immune pathophysiology of acquired aplastic anemia(AA).

METHODSBy FACS, the percentages of CD28, CTLA-4 expressing CD3+ CD4+ T cells and the level of Th1, Th2 in bone marrow were detected in 23 AA patients at active phase, 10 at recovery phase and 15 normal controls. The relationship between the co-stimulators, Th1, Th2, and absolute neutrophil counts (ANC) was evaluated.

RESULTS(1) The percentage of CD28 and CTLA-4 expressing CD3+ CD4+ T cells in bone marrow, and CD28+/CTLA-4+ ratios were (31.40 +/- 10.83)%, (2.45 +/- 1.30)% , and 17.02 +/- 13.44 in normal controls respectively, (39.84 +/- 10.89)%, (1.43 +/- 0.67)%, and 43.04 +/- 37.61 in AA at active phase, respectively, (22 +/- 9.08)%, (3.46 +/- 2.26)%, and 10.49 +/- 7.8 in AA at recovery phase, respectively. The percentage of CD28 and CD28+/CTLA-4+ ratio were significantly higher, while CTLA-4 were lower in active phase AA patients than in normal controls (P < 0.05). These values in recovery phase AA were comparable to those in normal controls. (The Th1, Th2, and Th1/Th2 in bone marrow were (4.21 +/- 2.11)%, (1.99 +/- 1.27)%, and 2.46 +/- 1.28 in normal controls respectively, (11.13 +/- 4. 96)%, (2.46 +/- 1.65)%, and 5.20 +/- 1.98 in active phase AA and (5.39 +/- 4.2)9%, (2.53 +/- 2.41)%, and 2.87 +/- 1.43 in recovery phase AA, respectively. The percentage of Th1 and Th1/Th2 ratio were significantly higher in AA patients at active phase than in normal controls (P < 0.05). (3) The CD28+/CTLA-4+ ratio was positively related to the Th1+ /Th2+ ratio (P < 0.05). ANC was negatively related to CD3+ CD4+ CD28+ T cells (P < 0.01), and positively to CD3 + CD4 ' CTLA-4' T cells (P < 0.01) respectively.

CONCLUSION(1) The expression of CD28 was increased while CTLA-4 decreased on the membranes of CD3+ CD4+ T cells in bone marrow of AA patients. (2) The abnormal expression of CD28 costimulator promoted the shift of immune balance to Thl type. (3) The unbalance of CD28+ / CTLA-4+ is important for the immune pathophysiology of AA.

Adolescent ; Adult ; Aged ; Anemia, Aplastic ; immunology ; metabolism ; Antigens, CD ; immunology ; metabolism ; CD28 Antigens ; immunology ; metabolism ; CD4-Positive T-Lymphocytes ; metabolism ; CTLA-4 Antigen ; Child ; Female ; Humans ; Male ; Middle Aged ; Th1 Cells ; immunology ; Th2 Cells ; immunology

Objective To investigate the effect of fluid shear stress (FSS) on the expression of B lymphoma Mo-MLV insertion region 1 (Bmi-1) in bone mesenchymal stem cells (BMSCs) and possible signal transduction mechanism. Methods BMSCs were isolated from SD rats and FSS at different magnitude (0.5, 1.5, 3.0 Pa) and under different time phase (1, 2, 6, 24 h) were loaded by parallel-plate flow chamber system. The expression of Bmi-1 was measured by real-time RT-PCR at mRNA level and the levels of phosphorylated Akt (p-Akt) and extracellular signalregulated kinase 1/2 (p-ERK1/2) were detected by Western blotting. The signaling inhibitors, wortmannin (PI3K specific inhabitor) and PD98059 (ERK1/2 specific inhabitor), were used to investigate possible mechanical signal transduction pathway. Results Bmi-1mRNA expression increased when BMSCs were exposed to 1.5 Pa FSS for 1 h and reached the peak at 24 h. All FSS with different magnitude could increase Bmi-1 expression, especial at high FSS (3.0 Pa). Meanwhile, FSS resulted in a significant activation of p-Akt and p-ERK1/2 in BMSCs. After treated with wortmannin, the expression of Bmi-1 was inhibited prominently, however, PD98059, the expression of Bmi-1 did not change. Conclusions FSS can activate the expression of Bmi-1, the amount of Bmi-1 expression was closely related to the stimulating time and the magnitude of FSS, and Akt signal molecule plays an important role during the process. These findings provide significant references for studying the mechanical biological mechanisms of stem cell differentiation.