In order to examine the strong anticancer action and low toxicity of Trichostatin A (TSA), the effect of TSA was examined on the growth inhibition, acetylation of histone H3 and apoptosis in HL-60 cells by employing MTT, immunocytochemical techniques, and Annexin-V-FITC/ PI assay. Our results showed that TSA could inhibit proliferation of HL- 60 cells in a time- and dose-dependent manner, and the IC50 at the 36th h was 100 ng/ml. The apoptosis-inducing effect of TSA on HL-60 cells was also time- and dose-dependent. But it didn't demonstrate apparent apoptosis induction in NPBMNCs within specific dose and time range. Both of the acetylation of histone H3 in HL-60 cells and NPBMNCs increased significantly (P<0.05) after treated with 100 ng/ml TSA for 4 h. However, there was no significant differences between the two groups (P>0.05). It is concluded that TSA can inhibit growth and induce apoptosis of HL-60 cells in a time- and dose-dependent manner, and is able to selectively induce apoptosis in HL-60 cells but does not respond in NPBMNCs under the same conditions. The difference of TSA between HL-60 cells and NPBMNCs can't be explained by the regulation of histone acetylation.
Acetylation ; Antineoplastic Agents/pharmacology ; Apoptosis/*drug effects ; HL-60 Cells ; Histone Deacetylases/antagonists & inhibitors ; Histone Deacetylases/*chemistry ; Hydroxamic Acids/*pharmacology

In order to examine the strong anticancer action and low toxicity of Trichostatin A (TSA), the effect of TSA was examined on the growth inhibition, acetylation of histone H3 and apoptosis in HL-60 cells by employing MTT, immunocytochemical techniques, and Annexin-V-FITC/ PI assay. Our results showed that TSA could inhibit proliferation of HL- 60 cells in a time- and dose-dependent manner, and the IC50 at the 36th h was 100 ng/ml. The apoptosis-inducing effect of TSA on HL-60 cells was also time- and dose-dependent. But it didn't demonstrate apparent apoptosis induction in NPBMNCs within specific dose and time range. Both of the acetylation of histone H3 in HL-60 cells and NPBMNCs increased significantly (P<0.05) after treated with 100 ng/ml TSA for 4 h. However, there was no significant differences between the two groups (P>0.05). It is concluded that TSA can inhibit growth and induce apoptosis of HL-60 cells in a time- and dose-dependent manner, and is able to selectively induce apoptosis in HL-60 cells but does not respond in NPBMNCs under the same conditions. The difference of TSA between HL-60 cells and NPBMNCs can't be explained by the regulation of histone acetylation.
Acetylation ; Antineoplastic Agents ; pharmacology ; Apoptosis ; drug effects ; HL-60 Cells ; Histone Deacetylase Inhibitors ; Histone Deacetylases ; chemistry ; Humans ; Hydroxamic Acids ; pharmacology

Objective:To explore the efficacy and safety of transurethral anatomical vapor incision technique of prostate (VIT) with six-step method high power side-emitting greenlight laser in the treatment of benign prostatic hyperplasia (BPH).Methods:A retrospective analysis of 82 patients with BPH who used high power side-out green laser in the treatment from October 2018 to June 2020 in Gongli Hospital of Naval Medical University was performed. Among them, 40 patients were treated with six-step method VIT, and 42 patients were treated with photoselective vaporization of prostate (PVP). The two groups of patients were compared in age [(71.1±8.7)years vs.(72.1±7.0)years], prostate volume [75 (68.25, 89.00) ml vs. 73 (63.25, 85.00) ml], and peak urinary flow rate (Q max) [6.20 (5.20, 8.20) ) ml/s vs. 5.9 (4.75, 7.50) ml/s], post-void residual volume (PVR) [74.00 (42.50, 103.75) ml vs. 67.00 (58.00, 84.50) ml], international prostate symptom score (IPSS) [(21.2±5.2) vs. ( 21.0±3.9)], quality of life score (QOL) [5 (4, 6) vs. 5 (4, 6) ], prostate specific antigen (PSA) [6.20 (4.12, 8.43) ng/ml vs. 5.40 (3.88, 7.13) ng/ml ]. In general, there was no statistical difference ( P>0.05). The VIT group adopts the six-step method of marking, removing film, grooving, excision, trimming and crushing. In the PVP group, the prostate tissue was uniformly vaporized layer by layer from the inside to the outside. Perioperative indexes and complications were compared between the two groups. The Q max, IPSS, QOL, PVR and PSA between the two groups before and 3 months after surgery were compared. Results:All patients in the VIT group and PVP group successfully completed the surgery, and there was no case of transfer to TURP or open surgery. The average operation time was [60.00(50.00, 73.75)min vs. 70.00(50.00, 73.75)min] ( P<0.05). There was no significant difference in the amount of postoperative hemoglobin decline[15.00(10.00, 17.75)g/L vs. 16.00(14.00, 19.25)g/L], average bladder irrigation time[1(1, 1)d vs. 1(1, 1)d], indwelling catheterization time[3(3, 3)]d vs. 3(3, 3)d] and hospitalization time in patients after operation[4(3, 4)d vs. 4(4, 4)d] ( P>0.05). All patients had no blood transfusion, second bleeding, readmission, TURS, urethral stricture and urinary incontinence.There were 2 cases (5.0%) of postoperative urinary tract infection in the VIT group and 9 cases (21.4%) of postoperative urinary tract infection in the PVP group ( P<0.05), and they were cured after anti-inflammatory treatment. Three months after operation, Q max, IPSS, QOL, PVR and PSA in the two groups were significantly improved compared with preoperatively. Among them, the differences of IPSS [(5.7±2.5) points vs. (7.5±2.8) points] and PSA [2.65(2.10, 3.90)ng/ml vs. 4.00(2.45, 4.45)ng/ml] in the VIT group and PVP group after operation were statistically significant ( P<0.05). Conclusions:Applying the six-step method high power side-emitting greenlight laser transurethral anatomical VIT to treat BPH, there is less intraoperative and postoperative bleeding, short operation time, significant decrease in PSA, and fewer complications. It is a safe and effective minimally invasive technology for the treatment of BPH.

Objective To explore the correlation between breast ultrasound data classification system (BI-RADS) and estrogen receptor (ER),progesterone receptor (PR),proto-oncogene (Cerb-2).Methods The IDC ultrasound imaging of 320 patients diagnosed as breast cancer by surgery and postoperative pathology wasanalyzed,including the size of the lump,edge burr,aspect ratio,the presence of microcalcification,mass internal blood flow of posterior acoustic attenuation,mass,elasticity ratings and mass BI-RADS classification,and the expressions of ER,PR and CerB-2 were detected by immunohistochemical method.Results The positive rates of PR and ER in the mass with burr edge were significantly higher than those in the mass without burr edge,the positive rate of Cerb2 in mass with slight calcifications was significantly higher than that in mass without slight calcifications,and the positive rate of Cerb-2 in mass with flow grade Ⅱ ～Ⅲ was significantly higher than that in mass with flow grade 0 ～ I.The expressions of BI-RADS in mass with positive ER,PR and CerbB2 were significantly higher than those in mass with negative ER,PR and CerbB-2 (P ＜ 0.05).Conclusion There are correlations between molecular biology of breast cancer and edge burr,microcalcification and rich blood flow.

Objective To explore the correlation between breast ultrasound data classification system (BI-RADS) and estrogen receptor (ER),progesterone receptor (PR),proto-oncogene (Cerb-2).Methods The IDC ultrasound imaging of 320 patients diagnosed as breast cancer by surgery and postoperative pathology wasanalyzed,including the size of the lump,edge burr,aspect ratio,the presence of microcalcification,mass internal blood flow of posterior acoustic attenuation,mass,elasticity ratings and mass BI-RADS classification,and the expressions of ER,PR and CerB-2 were detected by immunohistochemical method.Results The positive rates of PR and ER in the mass with burr edge were significantly higher than those in the mass without burr edge,the positive rate of Cerb2 in mass with slight calcifications was significantly higher than that in mass without slight calcifications,and the positive rate of Cerb-2 in mass with flow grade Ⅱ ～Ⅲ was significantly higher than that in mass with flow grade 0 ～ I.The expressions of BI-RADS in mass with positive ER,PR and CerbB2 were significantly higher than those in mass with negative ER,PR and CerbB-2 (P ＜ 0.05).Conclusion There are correlations between molecular biology of breast cancer and edge burr,microcalcification and rich blood flow.

Objective To evaluate the value of hysterosalpingo-contrast-sonography in assessment the patency of fallopian tube after tubal interventional recanalization. Methods A total of 56 cases of fallopian tube recanalization were performed in Shanghai Putuo Hospital from January 2015 to September 2016. Seventy-eight fallopian tubes in 40 cases were treated with hysterosalpingo-contrast-sonography and hysterosalpingography before recanalization. Totally 106 fallopian tubes in 56 cases were performed hysterosalpingography before and after recanalization. Seventy-eight fallopian tubes in 40 cases were evaluated with hysterosalpingo-contrast-sonography before recanalization. The patency of the tubal was assessed by hysterosalpingo-contrast-sonography 3 months after recanalization, and the re-occlusion rate was calculated. Chi square test was used to compare the results of hysterosalpingo-contrast-sonography and hysterosalpingography before and after recanalization, and the patency of fallopian tube at just after operation and 3 months after recanalization. Results Before recanalization, the results of hysterosalpingo-contrast-sonography showed 40 obstructed and 38 partially obstructed. The results of hysterosalpingography showed 44 obstructed and 34 partially obstructed. There was no significant difference between the results of hysterosalpingo-contrast-sonography and hysterosalpingography. Before recanalization, 106 fallopian tubes in 56 cases showed 53 obstructed and 53 partially obstructed. After recanalization, 72 unobstructed, 34 partially obstructed, and no obstruction. However, 22 fallopian tubes were re-obstructed 3 months after recanalization, and the rate of re-occlusion was 20.7% (22/106). The re-occlusion rate of unobstructed fallopian tubes was 19.4% (14/73) and the re-occlusion rate of partially obstructed fallopian tubes was 23.5% (8/34). There was no statistically significant difference between them. Conclusions Re-obstruction may be present in some cases 3 months after tubal recanalization. Hysterosalpingo-contrast-sonography can provide an objective and effective basis for guiding pregnancy plan after tubal recanalization.