Objective To observe the effect of Shengmai Chenggu Prescription (SCP) on the damage of endothelial cells (EC) induced by endotoxin. Methods EC obtained from rabbit's aorta were cultured and were treated with endotoxin and serum containing SCP respectively. Histological changes and function of the cultured cells were observed under light microscope and electron microscope and with MTT method . Results Endotoxin could result in the pathologic injury of cultured EC and inhibit the proliferation of the cells. Serum containing SCP could increase the activity of EC and promote its proliferation. Conclusion SCP can protect endothelial cells from damage induced by endotoxin.

Objective To evaluate the prevention of glucocorticoid -induced avascular necrosis of the femoral head(ANFH)with Tongluo Shenggu Capsule(TSC).Methods One hundred and twenty adult SD rats were randomized into six groups:normal control group,model group,clofibratum group and three -dose TSC groups(high -,moderate -and low -dose respectively).ANFH rat models were established by injection of glucocorticoid once per week and the med-ication groups were given drugs by ga stric infusion one time a day.The rats were killed in the fourth,eighth and twelfth week respectively.Then the macrosc opic and microscopic feature of the f emoral head were observed,and ink -p erfused specimens of the femoral head were detected and analyzed by auto -photograph software of Metamoph to evaluate the pre-ventive effect of TSC.Results In TSC groups,bone trabecula grew we ll,similar to the normal group;lacu nar bone per-centage was lower than that in the mod el group;fatty degeneration in marrow cavity of the femoral head was redu ced,andthe number of subcartilaginous bloo d vessels and their diameter were increased as compared with those in the model group(P

AIM: To study the effects of protein kinase C on the expression of MMPs that may play an important role in the formation of atherosclerosis and the possible mechanism of Danshen injection to treat atherosclerosis. METHODS: 50 Sprgue-Dawley (SD) rats were divided into three groups randomly: control group (group C), model group (group M) and Denshen treatment group (group D). The serum was collected to measure the level of cholesterol, triglyceride, low density lipoprotein cholesterol(LDL-ch). The expression of PKC and MMPs were measured by immunohistochemistry. Light microscope and electron microscope were also used. RESULTS: ① The cholesterol, triglyceride, LDL-ch concentrations in group M and group D were significantly higher than those in group C (P

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 investigate the value of Doppler ultrasound detection of blood flow parameters in venous catheter and middle cerebral artery for the prediction of fetal distress. Methods All 102 pregnant women who received antenatal examination in our hospital from March 2013 to January 2014 received Doppler ultrasound detection and were divided into the normal group and the fetal distress group according to the fetal status. Results The two groups had sta tistically significant differences in the fetal DV parameters(QDV/UV and PLI),MCA parameters(S/D and RI)and Apgar score(P<0.05). Conclusion Through detecting the indicators of venous catheter and fetal cerebral artery, Doppler ultrasound can reflect the fetal hypoxia situation and enables more accurate understanding of fetal distress, thus re-duces neonatal morbidity and mortality.

Objective To compare the clinical efficacy and safety of wide-focus high energy lithotriptor with narrow-focus low energy lithotriptor treating renal calculi. Methods A prospective study was conducted to compare both modalities for the management of renal calculi.Stone formers were randomly enrolled into two groups. Group A was managed with wide-focus high energy lithotriptor,while group B was managed with the other. Urine samples were collected to detect neutrophil gelatinase-associated lipocalin(NGAL)and α1-microglobulin(α1-MG)levels before and after SWL. Results 60 were randomized to the group A and 60 to group B. There was no significant difference between two groups in stone free rate and complication rate.For stones more than 10 mm,re-treat rate(11.1%vs 39.1%,P=0.021)was lower and complication rate(25.9%vs 4.3%,P=0.038)was higher in group A. There had a larger increase of NGAL in group A(P < 0.001)after SWL. Conclusion SWL with both lithotriptors are effective and safe for renal stones.Wide-focus high energy lithotripsy was associated with lower re-treat rate and higher complication rate for stones more than 10 mm.NGAL may play a potential role in the evalua-tion of SWL induced early renal injury.

BACKGROUND:Clinical studies have shown that aerobic exercise is an important supplement to the clinical treatment of patients with pulmonary hypertension,which can alleviate the disease condition,increase exercise tolerance and improve the quality of life.However,it is not clear whether patients at different stages of pulmonary hypertension can benefit equally from exercise training. OBJECTIVE:To compare the intervention effects of early or late aerobic training on right heart failure in rats with pulmonary hypertension and explore its possible mechanism. METHODS:Sixty male Wistar rats were randomly divided into control group,model sedentary group,model early exercise group and model late exercise group,with 15 rats in each group.The model of pulmonary hypertension was established by intraperitoneal injection of monocrotaline(60 mg/kg)in the latter three groups.The model early exercise group was given 8 weeks of treadmill aerobic exercise(60%maximum running speed,60 minutes per day,5 days a week)after modeling,while the model late exercise group was trained for 6 weeks after 2 weeks of modeling.The control and model sedentary groups were fed quietly in the rat cage for 8 weeks.After training,the exercise performance,right ventricular hemodynamics,cardiopulmonary function,cardiopulmonary histopathology,reactive oxygen species level in mitochondria,activity of mitochondrial respiratory chain complex and expressions of myocardial tissue proteins were detected. RESULTS AND CONCLUSION:Compared with the model sedentary group,exercise performance and right ventricular function improved(P<0.05),myocardial collagen content,endothelin-1,tumor necrosis factor-α/interleukin-10 ratio and β-myosin heavy chain/α-myosin heavy chain ratio decreased(P<0.05),vascular endothelial growth factor and sarcoplasmic reticulum calcium-adenosine triphosphate enzyme expression increased(P<0.05),immunofluorescence intensity of mitochondrial reactive oxygen species and the protein expression of 3-nitrotyrosine decreased(P<0.05),the activities of complex I,II,IV and V increased in the model early exercise and model late exercise groups(P<0.05),but there were no significant changes in right ventricular maximum pressure,pulmonary acceleration time and pulmonary artery wall area/total vascular area ratio(P>0.05).Compared with the model late exercise group,the model early exercise group further improved exercise performance and right ventricular function,and downregulated collagen content,brain natriuretic peptide protein expression,tumor necrosis factor-α/interleukin-10 ratio and β-myosin heavy chain/α-myosin heavy chain ratio(P<0.05).To conclude,although pulmonary vascular remodeling and right ventricular overload persist in rats with pulmonary hypertension,exercise training at different stages of the disease has a cardioprotective effect.The mechanism is related to the improvement of cardiac remodeling,neurohormone system imbalance,inflammatory response and mitochondrial oxidative stress.Greater benefit is gained from initiating exercise in the early stage of the disease.

Objective:To explore the safety and efficacy of laparoscopic non-blocking partial nephrectomy assisted by high power lateral green laser in the treatment of T 1a renal tumor. Methods:The clinical data of 10 patients with T1a stage renal tumor from February 2021 to April 2021 in department of urology, Gongli hospital affiliated to Naval Military Medical University were retrospectively analyzed. There were 7 males and 3 females, aged 47.0-74.0 years, with average of(58.8±9.7)years old. The diameter of the tumor ranged from 2.0 cm to 3.8 cm, with an average of (3.1±0.6)cm. There were 6 cases on the left side and 4 cases on the right side, locate on lumbar side in 9 cases and ventral sied in 1 case. The R. E.N.A.L score was 4.0-6.0, with an average of (5.0±0.8). The preoperative creatinine was 66.9-90.1μmol/L, with an average of (75.1±9.0)μmol/L, preoperative GFR of 44. 6- 67. 3 ml /min, with an average of(56.7±7.7)ml/min, preoperative hemoglobin level of 119.0-156.0g/L, with an average of (135.8±11.4)g/L. All patients underwent laparoscopic non-blocking partial nephrectomy assisted by 180w lateral green laser, free the surrounding area of the tumor fully and completely expose the renal tumor. The laser fiber was placed through the green laser hand piece, and the fiber was connected with normal saline to wash the strip. The initial green laser vaporization power was set at 80W, and the hemostasis power at 35W.About 3mm away from the edge of the tumor, and one optical fiber away from the renal parenchyma, the renal parenchyma was cut with 80W power. In order to reduce the interference by smoke, high-pressure flushing was used through the optical fiber while vaporizing, and an attractor was used to push and peel the tumor. In case of bleeding during operation, hemostatic power can be used to close the bleeding point and gradually advance until the tumor was completely removed. The wounds of renal inner medulla and renal outer cortex were continuously sutured in 1-3 layers with barbed suture. It involved 9 cases via retroperitoneal approach and 1 case via abdominal approach. The operation time, postoperative hemoglobin decrease, extraction time of negative pressure drainage, postoperative hospital stay, postoperative pathology and postoperative complications were recorded, and the serum creatinine level and GFR level of the affected side were followed up 1 month after operation.Results:All the operations were successfully completed, and there was no conversion to open surgery or radical nephrectomy. One case changed to scissors fast resection and sutured hemostasis due to severe intraoperative bleeding. The operation time was 90.0-120.0 min, with the average of (104.5±9.0)min. The postoperative hemoglobin level was 96.0-132.0g/L, with an average of (115.2±11.8)g/L, and the difference was statistically significant ( P<0.05). The postoperative hemoglobin decreased from 12.0g/L to 25.0g/L, with an average of (20.6±4.6)g/L. The time of vacuum drainage was 5.0-7.0 days, with an average of (5.7±0.7)d. Postoperative hospital stay was 6.0-8.0 days, with an average of (6.7±0.7)d. No bleeding, urinary leakage and other complications occurred in all patients. There were 7 cases of clear cell carcinoma, 2 cases of papillary renal cell carcinoma and 1 case of angiomyolipoma. All margins were negative. One month after operation, creatinine ranged from 66.0 to 90.4μmol/L, with an average of (76.8±8.3)μmol/L, which was not significantly different compared with that before operation ( P>0.05). One month after operation, GFR was 45.1-60.8 ml/min, and with an average of (55.5±4.7)ml/min, and there was no significant difference compared with preoperative data( P>0.05). Conclusions:For T 1aN 0M 0 stage and exophytic renal tumors, laparoscopic non-blocking partial nephrectomy assisted by lateral green laser is safe and effective.

[Objective] To compare the clinical efficacy of super pulse thulium laser enucleation of the prostate (SPThuLEP) with "open tunnel" and transurethral holmium laser enucleation of the prostate (HoLEP) in the treatment of benign prostatic hyperplasia (BPH), in order to provide reference for the treatment options of BPH. [Methods] The clinical data of 112 BPH patients treated in our hospital during Jan.2023 and Jul.2023 were retrospectively analyzed, including 65 treated with SPThuLEP with "open tunnel" and 57 with HoLEP.The operation time, postoperative hemoglobin decrease, postoperative bladder irrigation, catheter indwelling time, hospitalization time and complications were compared between the two groups.The changes of maximum urine flow rate (Qmax), international prostate symptom score (IPSS), quality of life score (QoL), postvoid residual (PVR) and prostate-specific antigen (PSA) were compared between the two groups before operation and one month after operation. [Results] All operations were successful without conversion to open or transurethral plasmakinetic resection.The postoperative decrease of hemoglobin in SPThuLEP group was lower than that in HoLEP group [(13.12±6.72) g/L vs. (21.02±6.51) g/L], with statistical difference (P<0.05). There were no significant differences in the operation time [(63.35±15.73) min vs.(61.02±17.55) min], postoperative bladder irrigation time [(1.07±0.45) d vs. (1.06±0.36) d], catheter indwelling time [(2.98±0.56) d vs. (3.01±0.63) d] and hospitalization time [(3.63±0.61) d vs.(3.79±0.76) d] between the two groups (P>0.05). No blood transfusion, secondary bleeding or unplanned hospitalization occurred, and there were no serious complications such as transurethral electroresection syndrome (TURS), urethral stricture and urinary incontinence.One month after operation, the Qmax, IPSS, QoL, PVR and PSA of the two groups were significantly improved compared with those before operation (P<0.05), but with no statistical difference between the two groups (P>0.05). [Conclusion] SPThuLEP with "open tunnel" has comparable efficacy as HoLEP in the treatment of BPH.With advantages of small amount of bleeding and high safety, this minimally invasive technique can be widely popularized in clinical practice.