Effect and Safety of Tongyan Spray () on Hyoid Motion in Patients with Dysphagia after Ischemic Stroke / 中国结合医学杂志

OBJECTIVE@#To observe the effects and safety of Tongyan Spray () on the range and time of hyoid motion in patients with ischemic post-stroke dysphagia.@*METHODS@#Seventy-two patients with ischemic post-stroke dysphagia were selected and randomly assigned to a treatment group (36 cases) and a control group (36 cases) by a random number table from January 2013 to October 2014. All patients swallowed 4 kinds of barium meals with different traits respectively, and each patient underwent video fluoroscopy (VF) examination twice. In the treatment group, Tongyan Spray was sprayed to the pharynx on both sides and the middle part once respectively. The spray was applied 30 min before the second examination. Purified water at room temperature was used as placebo in the control group. The changes in the range and time of hyoid motion in both groups were observed before and after treatment.@*RESULTS@#Six patients dropped out in each group, and 60 patients completed the study and were included in the final analysis. Significant improvement was observed in the range of superior hyoid excursion distance and the time of hyoid motion in the treatment group compared with the control group (P<0.05). There were no obvious adverse reactions observed in oral mucosa in both groups during the whole study.@*CONCLUSION@#Tongyan Spray was an effective and safe medicine for improving swallowing function in patients with ischemic post-stroke dysphagia.

TIPE2 sensitizes CDDP to human non-small cell lung cancer cell line NCI-H1975 by suppressing AP-1 / 中国免疫学杂志

Objective:To investigate the chemosensitivity of TIPE2 in enhancing non-small cell lung cancer cell line NCl-H1975 and its mechanisms.Methods:TIPE2 lentiviral vector was transfected into NCI-H1975.IC50 was measured by CCK-8 method after treated with CDDP.Apoptotic cells were detected by Annexin V/FITC and PI apoptosis detection kit.The expression of AP-1 and MDR-1 were measured using Western blot after TIPE2 transfected.The mRNA expression of IL-1,IL-6 and TNF-α were measured using Real-time PCR after TIPE2 transfected combined with CDDP administration.Results:(1) TIPE2 reduces the values of IC50 of NCI-H1975 cells for CDDP(P＜0.001).(2) TIPE2 increases the apoptosis rate of NCI-H1975 cells when treated with CDDP(P＜0.05).(3) TIPE2 significantly reduces the expression of AP-1 and MDR1 in NCI-H1975 cells when treated with CDDP.(4)TIPE2 reduces the mRNA expression of IL-1,IL-6 and TNF-α in NCI-H1975 cells when treated with CDDP(P＜0.01).Conclusion:TIPE2 may increase the chemosensitivity of non-small cell lung cancer cell line NCl-H1975 to CDDP by inhibiting AP-1 protein.

Prokaryotic expression and in vitro enzyme activity analysis of flavonol synthase in Chrysanthemum morifolium cv. 'Hangju' / 中国中药杂志

We cloned flavonol synthase gene (named as CmFLS) by RACE from Chrysanthemum morifolium cv. 'Hangju' based on transcriptome database. Sequencing results showed that 1 235 bp sequence was acquired with the largest open reading frame (ORF) of 1 008 bp, which encoded 335 amino acids. The predicted CmFLS encoded protein had an isoelectric point (pI) of 5.41. The phylogenetic tree analysis indicated that CmFLS was highly homologous to other FLSs, which identified from the species of Compositae. The recombinant fusion protein, with a molecular mass of 43 kDa, was successfully expressed by prokaryotic expression system. Meanwhile, Ni-NTA resin was used to purify the recombinant fusion protein, and the Ni-Native Buffer containing 250 mmol·L⁻¹ imidazole was most favorable for elution. The purified recombinant fusion protein was subjected to in vitro catalytic reaction, and then the products were extracted and analyzed by HPLC. The results showed that the recombinant fusion protein CmFLS was able to catalyze the production of quercetin by dihydroquercetin under specific buffer and reaction conditions, which indicated that the functional protein encoded by CmFLS had dioxygenase activity in the biosynthetic pathway of flavonoids biosynthesis in Ch. morifolium cv. 'Hangju'. The above results laid the foundation for further studying on CmFLS, and provided new ideas for the regulation of flavonoids metabolism from the molecular level and the catalytic synthesis of flavonols in vitro.

The Clinical Analysis of Humanized Nursing Measures for Imparoving Therapeutic Effects in Patiens with Cervical Erosion / 昆明医科大学学报

Objective To analyze humanized nursing measures for improving therapeutic effects in patients with cervical erosion.Methods We 80 patients with cervical erosion admitted in our hospital from March 2012 to September 2014.According to random number table,they were divided into two groups,the observation group and the control group,with 40 patients in each.patients in both groups were treated by LEEP knife circumcision surgery.The observation group was given humanized nursing,and the control group was traditional nursing.The effective rate of treatment,the incidence of postoperative complications and the scores of Self-Rating Anxiety Scale and Self-Rating Depression Scale was compared between two groups.Results The total effective rate of treatment in observation group was 92.5％,which was 75.5％ in control group.The difference was statistically significant (P＜ 0.05).The incidence of postoperative complications of observation group was 10.0％,which was 32.5％ in control group.The difference had statistically significant (P ＜0.05).significantly lower than that of control group (27.8％).All the differences were statistically significant (P＜0.05).Before given nursing,the scores of SAS and SDS between two groups were no significant difference (P ＞0.05) The scores in observation group were significantly lower than those of control group (P＜0.05) Conclusion The humanized nursing measures can improve the therapeutic effects of patences with cervical erosion,promote the recovery of patients' physical and mental health,and is worth of further clinical application.

Diffuse large B-cell lymphoma of testis: a clinicopathologic and immunophenotypic study of 58 cases / 中华病理学杂志

<p><b>OBJECTIVE</b>To investigate the clinicopathologic features, immunophenotype, diagnosis and differential diagnosis, and prognostic factors of testicular diffuse large B-cell lymphoma (DLBCL).</p><p><b>METHODS</b>The clinical and pathologic profiles of 58 cases of testicular DLBCL were investigated.Immunohistochemical stainings and EBER1/2 in situ hybridization were performed on formalin fixed tissues.</p><p><b>RESULTS</b>The average age of the patients was 62.1 years, and the median age was 65 years. The course of disease was short in most of the cases. Clinical stages at diagnosis were mainly stage I or II (87.9%, 51/58). Forty eight patients (82.8%) had unilateral testis involvement. Inguinal lymphadenopathy was observed in 12 (20.7%) patients and the other organs were seldom involved. Morphologically, centroblast-like neoplastic cells infiltrated interstitial tissue of testis diffusely and invaded into seminiferous tubules. Tunica albuginea and vessels were involved in 14 (24.1%) and 10 (17.2%) patients, respectively. Immunophenotype analysis showed predominant non-GCB type of DLBCL (48/58, 82.8%) by Hans classification. No EBV infection was detected. Follow-up data were available in 48 (82.8%) patients. Twenty eight patients (58.3%) died of the disease. One-year, 3-year, and 5-year overall survivals were 55.7%, 31.6% and 27.6%, respectively. Age (older than 60 years), B-symptoms, high serum level of LDH, advanced Ann Arbor stage as well as lack of combination of therapy were associated with a poor prognosis.</p><p><b>CONCLUSIONS</b>This large series of testicular DLBCL mainly present with local disease at diagnosis. Most cases show non-GCB immunophenotype. Despite early clinical stage at presentation, the prognosis is poor. Combined chemotherapy postoperation may prolong survival of the patients.</p>

Efficacy of flowable composite resin as stress-absorbing liners in Class I cavity restorations / 中华口腔医学杂志

<p><b>OBJECTIVE</b>To evaluate the efficacy of flowable composite resin(FCR) as stress-absorbing liners in Class I cavity restorations in vitro.</p><p><b>METHODS</b>Thirty Class I cavities of 4 mm in diameter and 2 mm in depth were prepared in polycarbonate (PC) plates and divided into three groups, ten each. After application of an adhesive, cavities in each group were restored using one of the following methods: A: restored with Charisma without any lining of FCR; B: lined with Revolution Formula 2 twice before restoration with Charisma; C: lined with Teric Flow twice before restoration with Charisma. All cavities were observed under a photoelastic microscope and photoelastic images were recorded at 3 min and 24 h after curing and the shrinkage stresses on the cavity wall were calculated. The polymerization shrinkage(v%) of the three composite resins was measured using bonded discs method and their elastic moduli were measured according to ISO standard.</p><p><b>RESULTS</b>The shrinkage stresses at 3 min and 24 h of the three methods were as follows,A: (4.93 ± 0.28), (5.87 ± 0.40) MPa, B: (4.90 ± 0.30), (5.84 ± 0.33) MPa, and C: (4.76 ± 0.28),(5.83 ± 0.37) MPa.No significant difference was found in results among different groups. The polymerization shrinkage(v%) in group A,B, and C were (2.63 ± 0.04)%, (4.56 ± 0.06)%, and (3.98 ± 0.02)%. The elastic modulus in group A, B, and C were (9.59 ± 0.65), (4.25 ± 0.51), and (5.41 ± 0.79) GPa.</p><p><b>CONCLUSIONS</b>Under present study condition, using a FCR as stress-absorbing liner under composite resin restoration does not significantly decrease the polymerization shrinkage stresses at the cavity wall.</p>

Analysis of the immunohistochemical subtypes and prognosis of primary diffuse large B cell lymphoma of the central nervous system / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To analyze the subtypes of primary diffuse large B cell lymphoma of the central nervous system (CNS DLBCL) and to explore the relationship between the subtype classification and prognosis.</p><p><b>METHODS</b>Immunohistochemical staining was used to determine the expression of CD20, CD3, CD10, Bcl-6, Mum-1, CD5, Bcl-2, Ki-67, FOXP-1, GCET-1, BLIMP-1 and LMO-2 antigens on paraffin-embedded sections of 47 cases. Hans, Choi and Tally subtypes were classified, and univariate and multivariate analyses were used to elucidate the relationship between the subtypes and prognosis.</p><p><b>RESULTS</b>In the 47 cases, the expression of Bcl-2 in the tumor cells was 46.8%, CD10 4.3%, Bcl-6 70.2%, Mum-1 53.2%, GCET-1 36.2%, BLIMP-1 4.3%, FOXP-1 63.8% and LMO-2 19.2%. The positive rate of Ki-67 was 30% to 95%, with a median of 80%, of which 12 cases (25.5%) was > or = 90%. The Hans subtype classification showed 16 cases (34.0%) were of GCB type and 31 cases (66.0%) of non-GCB type. The Choi subtype classification showed 16 cases (34.0%) were of GCB type and 31 cases (66.0%) of ABC type. The Tally subtype classification showed 6 cases (12.8%) were of GCB type and 41 cases (87.2%) of non-GCB type.</p><p><b>CONCLUSIONS</b>The results of this study show that there is no significant correlation between the three subtypes and prognosis. The prognosis is correated with post-operative radiotherapy, chemotherapy and MTX therapy.</p>

Primary gastrointestinal diffuse large B-cell lymphoma: an immunohistochemical and prognostic study of 90 cases / 中华病理学杂志

<p><b>OBJECTIVE</b>To study the immunophenotype and prognostic significance of primary gastrointestinal diffuse large B-cell lymphoma, with reference to Hans, Choi and Tally algorithms.</p><p><b>METHODS</b>The clinicopathologic features and follow-up data in 90 cases of primary gastrointestinal diffuse large B-cell lymphoma were analyzed by Kaplan-Meier method, Log-rank test and Cox regression model. Immunohistochemistry was carried out using EliVision and EnVision methods for CD20, CD3ε, CD10, bcl-6, MUM-1, CD5, bcl-2, GCET1, FOXP1, LMO2, BLIMP1 and Ki-67.</p><p><b>RESULTS</b>The age of patients ranged from 27 to 83 years (mean = 58 years). The male-to-female ratio was 1.31:1. Amongst the 90 cases studied, 64.4% (58/90) involved the stomach and 35.6% (32/90) involved the intestine. The immunohistochemical findings were as follows: 100% positivity for CD20, 0% for CD3ε and CD5, 17.8% (16/90) for CD10, 75.6% (68/90) for bcl-6, 52.2% (47/90) for MUM-1 (cut off was 30%), 43.3% (39/90) for MUM-1 (cut off was 80%), 50.0% (45/90) for GCET1, 45.6% (41/90) for FOXP1, 23.3% (21/90) for LMO2, 42.2% (38/90) for bcl-2 and 8.9% (8/90) for BLIMP1. The Ki-67 index ranged from 20% to 95% (median = 80%). According to Hans algorithm, 51.1% of the cases belonged to germinal center B-cell (GCB) subtype and 48.9% belonged to non-GCB subtype. In contrast, Choi algorithm classified 55.6% cases as GCB subtype and 44.4% as activated B-cell (ABC) subtype. According to Tally algorithm, 34.4% were of GCB subtype and 65.6% of non-GCB subtype. Most of the patients (67.8%, 61/90) received chemotherapy and 68.9% (62/90) underwent surgical resection. The overall 2, 3 and 5-year survival rates were 58.5%, 52.8% and 49.8%, respectively. The overall 2, 3 and 5-year survival rates in the CHOP therapy group were 68.5%, 61.2% and 52.9%, respectively.</p><p><b>CONCLUSIONS</b>There is no significant difference in ratio between the GCB and non-GCB/ABC subtypes by Hans and Choi algorithms. The non-GCB subtype seems to be more prevalent according to Tally algorithm. Although there is no significant difference in survival between GCB and non-GCB/ABC subtypes by the 3 algorithms, GCB subtype tends to show a better survival. In univariate analysis, LDH level, international prognostic index, chemotherapy, surgical resection, B symptoms, number of involved sites and clinical stage are found to have prognostic significance. In multivariate analysis, Choi algorithm, Tally algorithm, chemotherapy, surgical resection, LDH level and clinical stage are independent prognostic factors.</p>

Solitary plasmacytoma of bone: a clinicopathologic, immunohistochemical and immunoglobulin gene rearrangement study / 中华病理学杂志

<p><b>OBJECTIVE</b>To investigate clinicopathologic features of solitary plasmacytoma of bone (SPB) and the role of immuno-phenotype and immunoglobulin gene rearrangement detection in the diagnosis and differential diagnosis of SPB.</p><p><b>METHODS</b>A total of 21 cases of SPB were selected during a period from 1990 to 2008. A retrospective clinicopathologic study and immunohistochemistry (EnVision or EliVision methods) of 17 antigens were performed. In addition, universal IgH (FR3A/LJH/VLJH) primers and BIOMED-2 PCR multiplex tubes were used for IgK and IgL rearrangement analysis.</p><p><b>RESULTS</b>The age of patients ranged from 36 to 72 years with a media of 50 years. Axial skeleton was the most common site of involvement, accounting for 66.7% of the cases (14 of 21), followed by the extremities of 33.3% (7 cases). Low serum level of M-components was found in 5 cases, including two of IgG type (21.4 g/L) and three of IgA type. Clinical manifestations were closely related to the anatomic sites involved, such as pain due to bone destruction, symptoms and signs caused by compression of spinal cord or nerve root, and pathological fracture. All cases presented as a solitary osteolytic lesion. According to the histological grading criteria, grade I tumor was seen in 12 of 21 cases (57.1%). The remaining were grade II (5 cases, 23.8%) and grade III (4 cases, 19.0%). Immunohistochemically, the neoplastic cells expressed two or more plasma cell antigens, including CD138, CD38 and PC, but no CD19 and CD20. CD79a expression detected in 23.8%(5/21) of the cases. Expression of CD56, CD27 and CD44v6 were 57.1% (12/21), 15.0% (3/20) and 23.8% (5/21), respectively. Follow-up data were available in 12 of the 21 patients (57.1%). Five patients were alive and 7 died. Three patients developed multiple myeloma (MM) and died of the tumor.</p><p><b>CONCLUSIONS</b>SPB is a rare tumor with bone pain as the most common presenting symptom due to bone destruction. The diagnosis of EMP can only be established after exclusion of an extramedullay invasion by MM. Immunophenotype and IgH gene rearrangement analysis play important roles in the diagnosis of SPB.</p>

Study on genetic aberrations of ocular mucosa-associated lymphoid tissue lymphomas occurring in southern China / 中华病理学杂志

<p><b>OBJECTIVE</b>To study the genetic aberrations of ocular extranodal marginal zone B-cell lymphomas of mucosa-associated lymphoid tissue (MALT) type occurring in patients from southern China.</p><p><b>METHODS</b>Fifty seven paraffin-embedded ocular MALT lymphoma specimens from patients in southern China were studied by interphase fluorescence-in-situ hybridization (FISH) for genetic aberrations including t(11;18)(q21;q21)/API2-MALT1, t(1;14)(p22;q32)/IgH-bcl-10, t(14;18) (q32;q21)/IgH-MALT1 and bcl-6/FOXP1 gene translocations.</p><p><b>RESULTS</b>Amongst the 57 cases studied, 9 cases (15.8%) showed chromosome translocations, including 4 cases (7.0%) of t(11;18)(q21;q21)/API2-MALT1, 1 case (1.8%) of t(14;18) (q32;q21)/IgH-MALT1, 1 case (1.8%) of bcl-6 gene-related chromosome translocation and 3 cases (5.3%) of IgH-unknown translocation partner. FISH revealed 17 cases (29.8%) with 3 copies of bcl-6 gene, 21 cases (36.8%) with 3 copies of MALT1 gene and 12 cases (21.1%) with 3 copies of both genes.</p><p><b>CONCLUSIONS</b>The MALT lymphoma-associated chromosome translocations t(11;18)(q21;q21)/API2-MALT1 and t(14;18) (q32;q21)/IgH-MALT1 are demonstrated in ocular MALT lymphomas of southern Chinese patients. The prevalence is significantly different from that reported in northern Chinese and northern American patients, indicating a geographic heterogeneity in the MALT lymphoma-associated genetic aberrations. The presence of 3 copies of bcl-6 and MALT1 genes is the commonest genetic abnormalities observed in ocular MALT lymphomas, suggesting a possible role in MALT lymphomagenesis.</p>

Expression of AIF and caspase-3 in colorectal carcinoma, adenoma, and normal mucosa and its correlation / 中华胃肠外科杂志

<p><b>OBJECTIVE</b>To investigate the expression differences of apoptosis-inducing factor (AIF) and caspase-3 among colorectal carcinoma, adenoma and normal mucosa, and to identify the relationship between AIF and caspase-3 expression in colorectal adenoma-carcinoma sequence.</p><p><b>METHODS</b>Formalin-fixed paraffin embedded colorectal tissues from 174 cases, including 84 adenomas, 72 carcinomas, and 18 normal mucosa, were examined for expression of AIF and caspase-3 by streptavidin-peroxidase (SP) immunohistochemistry.</p><p><b>RESULTS</b>The positive rates of AIF and caspase-3 in colorectal adenoma were higher than those in normal mucosa (P <0.05). The positive rate of AIF in adenoma showed no significant difference compared to colorectal carcinoma (P >0.05). However, caspase-3 expression in adenomas was significantly higher than that in carcinoma (P <0.05). The positive rate of AIF in tubular adenoma was significantly higher than that in villous adenoma (P <0.05), while the positive expression rate of caspase-3 in the two types of adenoma showed no significant difference (P >0.05). AIF expression had no prominent correlation with the caspase-3 expression (P >0.05).</p><p><b>CONCLUSIONS</b>The dysregulation of caspase-independent pathway of apoptosis may be an early event in the development of colorectal carcinogenesis, while the dysregulation of the caspase-dependent pathway of apoptosis may be one of contributing factors of colorectal carcinogenesis. The caspase-independent pathway of apoptosis and the caspase-dependent pathway of apoptosis are two relatively independent pathways in colorectal carcinogenesis.</p>

Lymphoblastic lymphoma and acute lymphoblastic leukemia: a clinicopathologic, immunophenotypic and prognostic study in 153 Chinese patients / 中华病理学杂志

<p><b>OBJECTIVE</b>To study the clinicopathologic features, immunohistochemical findings and prognosis of precursor lymphoblastic lymphoma/acute lymphoblastic leukemia (LBL/ALL).</p><p><b>METHODS</b>One hundred and fifty-three cases of LBL/ALL were retrospectively analyzed. Immunohistochemical study was carried out. The pathologic findings were correlated with Ann Arbor tumor stage, Ki-67 index, other clinical parameters (including mediastinum/bone marrow involvement, hepato-splenomegaly, age and gender of the patients) and the survival data.</p><p><b>RESULTS</b>Staining for TdT and CD99 was positive in 79.1% (121/153 cases) and 96.3% (131/136 cases), respectively. The cases were categorized into three groups according to the immunohistochemical findings, as follows: precursor T-cell, precursor B-cell and undefined. T-LBL/ALL accounted for 69.3% (106/153 cases) of all of the cases. The male-to-female ratio was 2.4:1 (including 75 males and 31 females). The median age at diagnosis was 17.5 years (ranged from 2 years to 68 years). Ninety-two patients (86.8%) presented with peripheral lymphadenopathy and 59 of them (55.7%) had mediastinal masses. Ninety-one cases (85.8%) were in stage III or IV at diagnosis. The 1-year and 5-year survival rates in patients with T-LBL/ALL were 36.1% and 8.1%, respectively. Patients older than 25 years and those presented in stage III or IV suggested a poor prognosis (P = 0.049 and 0.001, respectively). On the other hand, 29 of the 153 cases (19.0%) belonged to B-LBL/ALL. The median age of the patients was 14 years (ranged from 9 months to 75 years). The male-to-female ratio was 1.6:1 (including 18 males and 11 females). Seventeen patients (58.6%) presented with peripheral lymphadenopathy and 13 of them (44.8%) had involvement of bone marrow or peripheral blood. Mediastinal involvement was found only in 5 cases (17.2%). Twenty-one patients (72.4%) were in stage III or IV at diagnosis. The 1-year and 5-year survival rates were 53.3% and 36.7%, respectively. The remaining 11.7% cases (18/153 cases) were categorized as undefined type, with a negative staining for the following immuno-markers including: CD3ε/CD3, CD45RO, CD79a, CD20, MPO, CD5, CD56, cyclin D1, cytokeratin, neuron-specific enolase, chromogranin A and synaptophysin. The median age of the patients was 15.5 years (ranged from 4 to 53 years). The male-to-female ratio was 2.6:1 (including 13 males and 5 females). The percentage of T-LBL/ALL patients with mediastinal masses were significantly higher than that of B-LBL/ALL cases (P = 0.0003). There was no significant difference in prognostic parameters of T-LBL/ALL and B-LBL/ALL (P = 0.07). The difference in median survival time however was statistically significant (6.0 months +/- 1.1 months versus 15.0 months +/- 7.0 months).</p><p><b>CONCLUSIONS</b>Both TdT and CD99 are useful markers for the diagnosis of precursor lymphoblastic malignancy. T-LBL/ALL predominantly affects children or adolescent males and frequently presents with lymphadenopathy and mediastinal masses, whereas B-LBL/ALL are often accompanied by bone marrow and peripheral blood involvement. In general, T-LBL/ALL carries a poor prognosis. The prognostic criteria include age of older than 25 years and a classification of stage III or IV disease.</p>

Investigation on clinicopathologic features of lymphomatoid papulosis / 中华病理学杂志

<p><b>OBJECTIVE</b>To investigate the clinicopathologic features, immunophenotype and prognosis of lymphomatoid papulosis (LyP).</p><p><b>METHODS</b>Clinicopathologic analysis, immunohistochemical staining (LSAB and EliVision method) and in situ hybridization for EBER were undertaken in this study.</p><p><b>RESULTS</b>Thirteen cases of LyP were studied, derived from six male and seven female patients with a median age of 26.4 years. The most common presentation was multiple symptomless papules or nodules, involving predominately the extremities and trunks. Histologically, the tumor primarily involved the dermis and subcutaneous layer. Six tumors were type A, one was type B and six were type C. The main infiltration patterns were wedge-shaped, band-like, sheet-like or nodular. There was epidermotropism in eight cases. Immunohistochemical staining showed that the large tumor cells in all 12 types A and C cases expressed CD30. All 13 cases expressed two to three T-cell associated antigens (CD3, CD5 or CD45RO) and one to three cytotoxic granule associated antigens (TIA-1, GrB or Perforin). All cases expressed CD4, four expressed CD8, and one expressed CD15. Only one case expressed CD20; and all cases were negative for ALK-1. The tumor cells showing epidermotropism had CD3(+), CD4(+) and CD8(-) phenotype in most cases. Only one case was EBER1/2 positive. Follow up information was available in 12 patients; all were alive at the end of the follow up period.</p><p><b>CONCLUSIONS</b>LyP has distinctive clinicopathologic features and immunophenotype with favorable prognosis. In types A and C, the atypical cells showing epidermotropism were similar to those in MF, these cells possess cerebriform and hyperchromatic nuclei. The epidermotropic tumor cells and the CD30(+) large cells may be derived from different clones. EB virus may not be correlated with LyP.</p>

Effects of magnetron sputtered ZrN on the bonding strength of titanium porcelain / 中华口腔医学杂志

<p><b>OBJECTIVE</b>To investigate the effect of magnetron sputtered ZrN on the bonding strength between a low-fusing porcelain (Ti/Vita titankeramik system) and commercially pure cast titanium.</p><p><b>METHODS</b>Sixteen specimens were randomly assigned to test group and control group (n=8). The control group received no surface treated. Magnetron sputtered ZrN film was deposited on the surface of specimens in the test group. Then the sixteen titanium-porcelain specimens were prepared in a rectangular shape and went through three-point bending test on a universal test machine. The bond strength of Ti/porcelain was recorded. The phase composition of the specimens was analyzed using X-ray diffraction (XRD). The interface at titanium and porcelain and the titanium surface after debonding were observed with a scanning electron microscopy (SEM) and analyzed using energy depressive spectrum (EDS).</p><p><b>RESULTS</b>New phase of ZrN was found with XRD in the test group. Statistical analysis showed higher bond strength following ZrN surface treatment in the test group [(45.991+/-0.648) MPa] than that in the control group [(29.483+/-1.007) MPa] (P=0.000). Bonded ceramic could be observed in test group, the amount of bonded ceramic was more than that in the control group. No obvious bonded ceramic in control group was found.</p><p><b>CONCLUSIONS</b>Magnetron sputtered ZrN can improve bond strength of Ti/Vita titankeramik system significantly.</p>

Anti-tumor mechanism of active components from extract of Actinidia rufa root / 中国中药杂志

<p><b>OBJECTIVE</b>To observe effect and mechanism of n-Butanol lysate of alcohol extracts from Actinidia rufa root (monomer of R6,R8).</p><p><b>METHOD</b>Tunel, Wright's stain with Giemsa's stain dyeing, and Hoechst 33258-PI double dyeing assay were used to detect the apoptosis of SGC7901 tumor cells treated with R6, R8. The SGC7901 tumor cells were randomly divided into control group and two treatment groups administered 0.05 g x L(-1) R6, R8, respectively, for 72 h). FCM assay was used to detect the apoptosis. Agarose electrophoresis assay was used to detect DNA strand break of tumor cells and reveal anti-tumor action mechanism.</p><p><b>RESULT</b>The apoptosis percentage of the tumor cell in 24 h, 48 h, 72 h was (17.08 +/- 2.78)% , (29.68 +/- 2.96)%, (52.46 +/- 3.81)%; (14.75 +/- 2.14)%, (27.35 +/- 3.79)%, (45.64 +/- 5.24)%, respectively, for the treatment group, significantly higher than that in the control group (1.94 +/- 1.55)%, (2.78 +/- 1.84)%, (11.8 +/- 2.79)% (P < 0.01) by tunnel assay. Wright's stain with Giemsa's stain dyeing assay, Hoechst 33258-PI and FCM double dyeing assay showed same action. R6 and R8 had the effect of inducing the DNA histogram of tumor cells (P < 0.01).</p><p><b>CONCLUSION</b>The anti-tumor mechanisms may be associated with inducing the injury of DNA and stimulating apoptosis.</p>

Expression of minichromosome maintenance protein 2 in colonic adenocarcinoma, adenoma and normal colonic mucosa and its clinical significance / 中华胃肠外科杂志

<p><b>OBJECTIVE</b>To investigate the expression differences of minichromosome maintenance 2 (MCM2) mRNA and protein among colon adenocarcinoma, colon adenoma and normal mucosa, and among different clinicopathological types of adenomas.</p><p><b>METHODS</b>Fifty specimens, including 33 colonic adenomas, 12 colonic adenocarcinomas and 5 normal colonic mucosa were selected. Each specimen was divided into two parts, one for immunohistochemistry and the other for real-time RT-PCR. Expression differences of MCM2 mRNA among the colonic adenocarcinoma, adenoma and normal colonic mucosa were evaluated by REST-XL software.</p><p><b>RESULTS</b>The expression of MCM2 was observed in the basal third to half of the colonic crypts in normal mucosa, while throughout the epithelium in the colonic adenocarcinomas and adenomas. However, the expression of MCM2 mRNA in the adenocarcinomas was significantly higher than that in the adenomas(P=0.001). The MCM2 mRNA expression was elevated in the adenoma with villous type, in the conditions of high-grade dysplasia, larger size, sessile morphology and in patients of older ages, but the difference was not significant by REST-XL (P>0.05).</p><p><b>CONCLUSION</b>The difference of MCM2 expression between the adenoma and the adenocarcinoma indicates its potential value in the early diagnosis of colonic cancer.</p>

Diagnostic significance of immunophenotyping and detection of gene rearrangement in subcutaneous panniculitis-like T-cell lymphoma / 中华病理学杂志

<p><b>OBJECTIVE</b>To explore the diagnostic implication of immunophenotyping and gene rearrangement in subcutaneous panniculitis-like T-cell lymphoma (SPTL).</p><p><b>METHODS</b>According to the selection criteria of 2005 WHO-EORTC classification for cutaneous lymphomas, 20 SPTL patients were enrolled in this study. A 10-antibody panel was used for immunophenotyping and in addition, polymerase chain reaction for TCR gamma and IgH gene rearrangement and in situ hybridization for EBER1/2 were also employed.</p><p><b>RESULTS</b>There were 9 males and 11 female with a mean age of 29.5 years. Immunophenotypic study showed that all the patients expressed one to three T-cell associated antigens (CD2, CD3 or CD45RO), 18 patients were positive for beta F1, 18 for CD8, 20 for TIA-1 and 16 for granzyme B. None of the patients expressed CD4, CD20 and CD56. TCR gamma gene rearrangement was found in 16 of 20 cases (80.0%) and none for IgH gene rearrangement. The positive rate of EBER1/2 was 25.0% (5/20).</p><p><b>CONCLUSIONS</b>Since the majority of SPTL patients show clonal TCR gene rearrangements, correlations among clinical presentation, histological features, immunophenotype and gene rearrangement data are considered important in confirming a diagnosis of SPTL.</p>

Sequential defunctionalization followed by thyroxine supplementation as preoperative preparation of hyperthyroid patients undergoing thyroidectomy / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Preparing hyperthyroid patients for thyroid surgery with a combination of antithyroid drugs and thyroxine has long been controversial because this combination usually results in only partial inhibition of thyroid function. We therefore used large doses of antithyroid drugs to completely inhibit the synthesis of thyroxine and render the thyroid gland defunctionalized. We then administered physiologic doses of thyroxine to inhibit thyroid-stimulating hormone secretion. We have named this treatment "sequential thyroid defunctionalization followed by thyroxine supplementation."</p><p><b>METHODS</b>Four hundred and seventy-one hyperthyroid patients seen at our hospital were divided into experimental and control groups. The control group was treated preoperatively with antithyroid drugs and iodine preparation. The experimental group was further divided into four subgroups and treated with "sequential thyroid defunctionalization followed by thyroxine supplementation". Each of the four subgroups received different doses of antithyroid drugs and thyroxine for differing time periods. Thyroid function was assessed at each stage of treatment, as were operative blood loss volumes and postoperative complications.</p><p><b>RESULTS</b>Compared to the control group, the four experimental groups showed less thyroid congestion and surface varices at surgery. Patients in subgroup A also had thyroid glands that were almost histologically normal. The mean operative blood loss volume of the experimental group was less than that of the control group (326 +/- 163) ml in the control group; (196 +/- 57) ml in subgroup A; (230 +/- 71) ml in subgroup B; (240 +/- 80) ml in subgroup C; and (312 +/- 97) ml in subgroup D). The postoperative complication rate of the experimental group was 8.64% (21/243) whereas that of the control group was 17.54% (40/228).</p><p><b>CONCLUSIONS</b>Sequential thyroid defunctionalization followed by thyroxine supplementation is effective in reducing the bleeding volume and postoperative complication rate in selected hyperthyroid patients undergoing thyroidectomy.</p>

Splenic lymphangioma: clinicopathologic and immunohistochemical study of 18 cases and review of literature / 中华病理学杂志

<p><b>OBJECTIVE</b>To study the clinicopathologic features and differential diagnosis of splenic lymphangioma.</p><p><b>METHODS</b>Eighteen cases of splenic lymphangioma were retrieved from the pathology archives during the period between January 1990 to December 2005. The clinicopathologic features were analyzed. Immunohistochemical study was performed on the paraffin sections of 16 cases.</p><p><b>RESULTS</b>The age of the patients ranged from 9 to 72 years (median = 40 years). Thirteen patients were males and 5 were females. Clinically, the tumor could be asymptomatic or present with abdominal symptoms and hypersplenism. Follow-up information was available in 13 patients (72.2%) and the duration varied from 5 months to 15 years. All 13 patients had an uneventful clinical course, with no evidence of residual disease, local recurrence or metastasis. Gross examination showed splenic enlargement. The tumor appeared as cystic (8/18), solid (5/18) or honeycomb mass (5/18), either solitary (5/18) or multifocal (13/18). Histologically, splenic lymphangioma could be subclassified as cavernous (9/18), cystic (5/18) or mixed (4/18). Immunohistochemical study showed that the positivity rates for CD9 and D2-40 were 100% and 43.8% respectively.</p><p><b>CONCLUSIONS</b>Splenic lymphangioma is a rarely encountered entity that can be misdiagnosed as a splenic hemangioma. A definite diagnosis depends on pathologic examination.</p>

Splenic T-cell and NK-cell lymphomas: a clinicopathologic and immunophenotypic analysis of 9 cases / 中华血液学杂志

<p><b>OBJECTIVE</b>To explore the clinicopathologic features and diagnosis of splenic T-cell and NK-cell neoplasms.</p><p><b>METHODS</b>Nine cases of splenic T-cell and NK-cell neoplasms were collected and studied by morphology, immunophenotyping, EBER in situ hybridization and TCR-gamma gene rearrangement. Antibodies used were as follows: CD45RO, CD3epsilon, CD3, CD4, CD8, CD56, TIA-1, GranzymeB, CD30, Ki-67 and CD20.</p><p><b>RESULTS</b>Among the 9 cases, hepatosplenic T-cell lymphoma (HSTCL) and extranodal nasal type NK/T-cell lymphoma (NK/TCL) were both of 4 cases, and the remaining one was peripheral T-cell lymphoma, unspecified (PTL, unspecified). Follow up data were available for 7 cases. Five patients including 2 with HSTCL, 2 with extranodal nasal type NK/TCL and one with PTL, unspecified died, with survival times ranged from 1 to 10 months. The other two patients are still alive, one with NK/TCL (two months+) and one with HSTCL (14+ months).</p><p><b>CONCLUSION</b>Splenic T-cell and NK-cell neoplasms are a group of uncommon lymphomas with heterogeneous clinicopathologic features and poor prognosis. A definite diagnosis must depend on clinical manifestations, histopathology, immunophenotype and TCR gene rearrangement analysis.</p>