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【Objective】 To investigate the risk factors and predictive effectiveness of prostate imaging reporting and data system (PI-RADS) score for patients with clinically significant prostate cancer (CsPCa) whose PI-RADS score was 3, so as to provide evidence for the diagnosis and treatment. 【Methods】 The clinical and multi-parameter magnetic resonance imaging (mpMRI) data of 153 CsPCa patients treated during Jan.2017 and Dec.2021 whose PI-RADS score was 3 were retrospectively analyzed. With PI-RADS score of 3 as the independent risk factor for CsPCa, the other relevant independent risk factors in predicting CsPCa were evaluated. 【Results】 Univariate and multivariate analyses showed that prostate-specific antigen (PSA) density and apparent dispersion coefficient (ADC) were independent risk factors for the diagnosis of CsPCa (P<0.05). Analysis of receiver operating characteristic (ROC) curve showed that combined PSA density and ADC were more effective than PSA density and ADC alone (P<0.05). 【Conclusion】 The combination of PSA density and ADC can guide clinicians to identify high-risk CsPCa patients from patients with PI-RADS score of 3 points.
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The essence of the clinical problem caused by benign prostatic hyperplasia(BPH) is lower urinary tract obstruction. Compared with drug treatment, surgery can fundamentally relieve the obstruction. Transurethral endoscopic surgery has become the most important surgical treatment for BPH. In recent years, everyone has been working on exploring the physical properties of various energy platforms, especially lasers, to maximize their advantages in clinical use, various surgical concepts and methods contend. This article summarized my 40 years of experience in transurethral laparoscopic surgery to discuss my experience and thoughts.
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Objective To investigate the effects of low dosage of β-elemene on the radiosensitivity of rabbit VX2 renal transplant carcinoma model. Methods We took the rabbit VX2 renal transplant carcinoma as the model. Experimental rabbits were divided into three groups: the control group, the radiation group, and the radiation +β-elemene (radiosensitivity) group. The change of tumor was observed by Spiral CT and B ultrasound to compare its regrowth period. The tumor was measured by light microscopy and electron microscopy. Results The tumor in radiosensitivity group was restrained obviously and the sensitization enhancement ratio (SER) of β-elemene was 1.89. Different apoptosis was observed under transmission electron microscopy. Conclusion Low dosage β-elemene can enhance the radiosensitivity of rabbit VX2 renal transplant carcinoma model and induce the apoptosis of tumor cells, but the mechanism needs further study. It promotes apoptosis in mechanisms in vitro.
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[Objective] To explore the effects of mycocide and insecticide on indoor air quality in archives.[Methocls] The levels of camphor, formaldehyde and 2, 2-dichlorovinyldimethyl phosphate (DDVP) in indoor airwere determined in 17 archives. [Results] The average concentration of camphor in indoor air was 1.00mg/L inarchives applying synthetic camphor, 0.74 mg/m3 in archives applying commercialized mycocide (the main compo-nents were synthetic camphor and pyrethrin ), and 0.14 mg/m3, applying natural camphor. The concentrations offormaldehyde reached 0.297 mg/m3 at the 10th day after the co-fumigation by formaldehyde and DDVP. At thesametime, DDVP was not found in indoor air of archives.[Conclusion]The pollution of formaldehyde and camphorin indoor air of archives should be paid more attention to.