Objective To observe the effects of genistein on PCNA expression and cell cycle in fibroblasts derived from human hypertrophic scar in order to explore the mechanism of its inhibition on hypertrophic scar (HS) fibroblast proliferation. Methods The human hypertrophic scar fibroblasts were cultured in vitro. Genistein with various concentrations (25, 50, 100 μmol/L) was co-cultured in the medium for 48 hours. The expression of PCNA was detected with immunocytochemical staining method and the cell cycle was measured with flow cytometry. Results Genistein could significantly decrease PCNA expression in HS fibroblasts, especially when its concentration at 50 μmol/L or 100 μmol/L. The cell percentage of G0～G1 phase decreased with drug′s concentration, and G2～M percentage increased conversely, implying the suspension of mitosis. In 100 μmol/L group, most cells blocked at S phase and a hypodiploid apoptosis peak could be observed ahead of G1 phase. Conclusion Genistein can inhibit the proliferation of human hypertrophic scar by blocking cell division as well as decreasing DNA synthesis.

Objective To evaluate the efficacy and safety of double dosage Tamsulosin in treating patients with type Ⅲ prostatitis.Methods According to the results of prostate secretion(EPS) examination and the national institute health-chronic prostatitis symptom index(NIH-CPSI) questionnaire,120 patients with type Ⅲ prostatitis were recruited and randomly divided into single dosage group (n =60),treated with 0.2 mg Tamsulosin and placebo once daily for 12 weeks,and double dosage group (n =60),treated with 0.4mg Tamsulosin once daily for 12 weeks.Before treatment,the NIH-CPSI total scores in single and double dosage group were 26.91 ± 4.08 and 27.31 ± 4.98,respectively.The pain index in each group was 10.64±2.23 and 11.47 ± 3.00,respectively.The voiding index was 6.52 ± 2.24 and 6.41 ± 2.97 respectively.In those groups,the quality of life index was 9.68 ± 1.81 and 9.45 ± 1.79,respectively.All those items didn't show significant difference among those groups (P ＞ 0.05).The patients were follow-up and evaluate by those items on weeks 12.Results Because of losing during follow-up,4 patients were excluded from single dosage group.2 patients were excluded from double dosage group.After treatment in single dosage group,the NIH-CPSI total scores were 12.11 ± 3.60,pain index were 3.57 ± 1.67,voiding index were 2.88 ± 1.70,quality of life index were5.59 ± 2.06.After treatment in double dosage group,the NIH-CPSI total scores were 9.90 ± 4.15,pain index were 3.21 ± 2.21,voiding index were 2.21 ± 2.11,quality of life index were 4.50 ± 1.97.After 12 weeks treatment,the NIH-CPSI total scores,pain index,voiding index,quality of life index in both two groups were improved (P ＜ 0.05),and the double dosage group improve better(P ＜ 0.05).In the course of treatment,there were 2 cases of patients (3.8％) with adverse drug reactions in single dosage group,including dizziness in 1 case,headache in 1 cases.There were 4 cases of patients (6.9％) with adverse drug reactions in double dosage group,including dizziness in 3 cases of and rhinitis in 1 case.The rate of adverse reactions had no significant differences in the two groups (P ＞ 0.05).Conclusions Compared with single dosage Tamsulosin in the treatment of type Ⅲ prostatitis,double therapy had a better efficacy.Double dosage Tamsulosin therapy had an equal safety to the single dosage Tamsulosin.

Objective:To present our initial experience with robot-assisted laparoscopic prostatectomy (RALP) for complicated cases.Methods:Clinical and pathological data from 4 complicated prostate cancer cases,who underwent RALP from October to November in 2015,were analyzed retrospectively.All the cases were conducted transurethral plasmakinetic enucleation of prostate and hormonal therapy before RALP.Results:All surgeries were done successfully.The age,baseline prostatic special antigen,clinical tumor stage,operation time and estimated blood loss were 58-70 years,6.04-70.15 ng/mL,T2bT3b,210-360 min and 50-250 mL,respectively.No blood transfusion was needed.All surgical margin were negative.Conclusion:Although previous transurethral surgeries and hormonal therapies may increase the difficulty for operations,RALP is still appropriate for the complicated cases of prostate cancer.

Along with the rapid development of molecular biology, cell biology, genetics, and immunology, there is a new understanding on the pathogenesis of pituitary adenomas. The pathogenesis of pituitary adenomas is considered to be related with gene mutation, growth factors, cell receptors, transcription factors, and cellular signaling pathways.
Adenoma ; genetics ; metabolism ; Humans ; Mutation ; Pituitary Neoplasms ; genetics ; metabolism ; Signal Transduction

Objective To study the mechanism of marcosomia by investigating insulin-like growth factor 2(IGF_2)imprinting status,expression level and the promoter usage in the placenta of macrosomia. Methods We selected heterozygous cases for Apa Ⅰ polymorphism in exon 9 of IGF_2 gene and then analyzed its imprinting status in 168 placentas of macrosomia and normal pregnancies.IGF_2 transcription levels and promoter usages in macrosomic and normal placenta were evaluated by using semi-quantitative RT- PCR assay.Results Thirty specimens of macrosomic placenta and 30 of normal placenta were identified as heterozygous for IGF_2.All of the heterozygous specimens showed maintenance of imprinting.The expression of placental IGF_2 mRNA(2.2?1.2)was significantly higher in macrosomia than that of normal weight group (1.6?0.6,P 0.05).Conclusion It is possible that over expression of IGF_2 in placenta contributes to macrosomia while the promoter usage and imprinting status are not associated with macrosomia.

Objective To investigate the efficacy, safety and tolerance of bosentan, a dual endothelin receptor antagonist, in Chinese patients with idiopathic pulmonary arterial hypertension (IPAH).Methods Totally 79 IPAH patients (hemodynamic criteria confirmed by right heart catheterization) were included in this open-label, prospective multicenter study. Patients received 62. 5 mg of bosentan twice daily for the first 4 weeks, and then up-titrated to 125 mg twice daily for another 12 weeks. The primary end point was the change in exercise capacity showed by six-minute walk distance (6MWD) from baseline to 16 weeks. Secondary end points included the change in World Health Organization (WHO) functional class,Borg dyspnoea scale and systolic pulmonary artery pressure measured by echocardiography. Results The 6MWD increased from (343. 7 ± 93.7) meters at baseline to (397.5 ± 104. 4) meters after 16 weeks ( P ＜0. 01 ), WHO functional class and Borg dyspnoea scale were also significantly improved after 16 weeks therapy compared to baseline levels (all P ＜0. 01 ). Furthermore, the systolic pulmonary artery pressure was significantly decreased from (97.8±25.2) mm Hg (1 mm Hg=0. 133 kPa) to (92.8 ±29.5) mm Hg (P ＜0. 05) after 16 weeks bosentan treatment. There was no patient withdrawal from this study for safety consideration. Conclusion Bosentan therapy is well tolerated and can improve the exercise capacity and WHO functional class in Chinese IPAH patients.

Adenocarcinoma ; blood supply ; physiopathology ; Capillaries ; metabolism ; ultrastructure ; Cell Separation ; Cells, Cultured ; Endothelial Cells ; cytology ; metabolism ; ultrastructure ; Humans ; Microcirculation ; Stomach Neoplasms ; blood supply ; physiopathology

OBJECTIVETo study the relationship between human herpesvirus 6 (HHV-6) and oral squamous cell carcinoma.

METHODSThe serum anti-HHV-6 antibody titers from oral squamous cell carcinoma patients and control subjects were detected by indirect immunofluorescence assay. HHV-6 DNA in peripheral blood mononuclear cells from oral squamous cell carcinoma patients and control subjects was amplified by PCR with primers from sequence of HHV-6 and the specificity was confirmed by Southern-blot hybridization with an internal probe oligonucleotide. An immunohistochemical staining using rabbit anti-HHV-6 antibody was used to detect HHV-6 antigen in oral tumor tissues from oral squamous cell carcinoma patients.

RESULTSSignificantly higher proportion of patients with oral carcinoma (16/16) had IgG antibody to HHV-6 in sera compared with those (12/16) in control subjects, and geometric mean titer of these two groups was 1:118 and 1:64 respectively (P less than 0.05). The detectable rate of HHV-6 DNA in peripheral blood mononuclear cells for the above groups was 10/16 and 6/16 respectively (P less than 0.05). HHV-6 antigens were positive in 9 out of 12 oral tumor cases and in only 2 out of 8 pericancerous tissues the difference between these two groups was also significant (P less than 0.05).

CONCLUSIONThese results demonstrated the frequent presence of HHV-6 in oral squamous cell carcinoma, therefore, HHV-6 possibly play a role in the pathogenesis of oral squamous cell carcinoma.

Antibodies, Viral ; blood ; Carcinoma, Squamous Cell ; virology ; DNA, Viral ; blood ; Herpesviridae Infections ; complications ; virology ; Herpesvirus 6, Human ; genetics ; immunology ; isolation & purification ; Humans ; Immunoglobulin G ; blood ; Infant ; Mouth Neoplasms ; virology

Familial isolated pituitary adenoma (FIPA) is an autosomal dominant disease, characterized by low penetrance, early-onset disease, more invasive tumor growth, as well as somatotroph and lactotroph adenomas in most cases. It has been indicated that the aryl hydrocarbon receptor interacting protein (AIP) gene is a tumor suppressor gene. Many heterozygous mutations have been discovered in AIP in about 20% of FIPA families. However, the exact molecular mechanism by which its disfunction promotes tumorigenesis of pituitary is unclear.
Growth Hormone-Secreting Pituitary Adenoma ; genetics ; Humans ; Intracellular Signaling Peptides and Proteins ; genetics ; Mutation ; Pituitary Neoplasms ; genetics