Effects of dezocine combined with sufentanil on continuous epidural analgesia after cesarean section / 中国基层医药

Objective:To investigate the effects of dezocine combined with sufentanil on continuous epidural analgesia after cesarean section.Methods:Eighty-six pregnant women who were scheduled for cesarean section in Guoyang Hospital of Traditional Chinese Medicine from February to December 2021 were included in this randomized controlled study. These women were divided into an observation group and a control group ( n = 43/group). The women in the observation group underwent epidural analgesia with dizocine, sufentanil, and ropivacaine, while those in the control group underwent epidural analgesia with dizocine and ropivacaine. The visual analogue score, Ramsay sedation score, Bruggrmann comfort scale score, and the incidence of adverse reactions were compared between the two groups. Results:At 4, 8, 12, 24 hours after surgery, the visual analogue score (VAS) in the observation group was significantly lower than that in the control group ( t = 2.34, 5.89, 15.36, 16.23, all P < 0.05). At 4, 8, 12, and 24 hours after surgery, Ramsay sedation score in the observation group was significantly higher than that in the control group ( t = -6.31, -7.64, -7.49, -7.41, all P < 0.001). At 4, 8, 12, and 24 hours after surgery, Bruggrmann comfort scale score in the observation group was significantly higher than that in the control group ( t = -7.60, -10.40, -14.53, -13.80, all P < 0.001). There was a significant difference in the number of effective analgesic pump compressions between the observation and control groups [(3.00 ± 1.41) times vs. (7.23 ± 1.31) times, t = 14.42, P < 0.001]. No adverse reactions were observed in the observation group within 24 hours after surgery. Conclusion:Dezocine combined with sufentanil for epidural analgesia can effectively improve the analgesic effects after cesarean section and is highly safe.

Comparison of Different Methods for Extracting the Astaxanthin from Haematococcus pluvialis: Chemical Composition and Biological Activity.

In this study, the impact of different cell disruption techniques (high-pressure micro fluidization (HPMF), ionic liquids (ILs), multi-enzyme (ME), and hydrochloric acid (HCl)) on the chemical composition and biological activity of astaxanthin (AST) obtained from Haematococcus pluvialis was investigated. Results indicated that all cell disruption techniques had a significant effect on AST composition, which were confirmed by TLC and UPC2 analysis. AST recovery from HCl (HCl-AST) and ILs (ILs-AST) cell disruption techniques was dominant by free and monoesters AST, while AST recovery from HPMF (HPMF-AST) and ME (ME-AST) cell disruption techniques was composed of monoesters, diesters, and free AST. Further biological activity analysis displayed that HCl-AST showed the highest ABTS and DPPH activity, while ILs-AST showed better results against the ORAC assay. Additionally, ILs-AST exhibits a stronger anti-proliferation of HepG2 cells in a dose-dependent manner, which was ascribed to AST-induced ROS in to inhibit the proliferative of cancer cells.

Research advances on the chemical components and pharmacological activities of Zanthoxyli Radix / 药学学报

Zanthoxyli Radix is a traditional Chinese medicine. It can be used for the treatment of wind-cold-dampness arthralgia, muscle and bone pain, fall fracture, hernia, sore throat, toothache and other diseases. Due to possessing many excellent and mild pharmacological properties, there are lots of reports about Zanthoxyli Radix worldwide. At present, more than 100 bioactive components have been extracted and purified from Zanthoxyli Radix. Nitidine chloride (NC), one of the most important alkaloids in Zanthoxyli Radix, has the activities of anti-tumor, anti-inflammation, anti-bacteria, etc. In this review, we summarize the chemical components of Zanthoxyli Radix, pharmacological activity and mechanism of action of NC to provide references for further research and utilization of Zanthoxyli Radix.

Identification of Chemical Constituents in Coptis chinensis Inflorescence by UPLC-Q-Orbitrap HRMS / 中国实验方剂学杂志

Objective:An ultra-high performance liquid chromatography coupled with quadrupole-orbitrap high resolution mass spectrometry （UPLC-Q-Orbitrap HRMS） was developed to analyze and identify the chemical constituents in <italic>Coptis chinensis</italic> inflorescence. Method:The chromatographic separation was performed on ACQUITY UPLC BEH C₁₈ column （2.1 mm×100 mm， 1.7 μm） with the mobile phase of 0.1% formic acid aqueous solution （A）-acetonitrile （B） for gradient elution （0-15 min， 10%-22%B； 15-20 min， 22%B； 20-25 min， 22%-44%B； 25-35 min， 44%-50%B； 35-40 min， 50%-60%B； 40-55 min， 60%-85%B）， the flow rate was 0.15 mL·min^-1， the injection volume was 3 μL and the column temperature was 30 ℃. HRMS was equipped with electrospray ionization （ESI） and scanned in positive and negative ion modes by means of full scan/data dependent secondary scan （Full MS/dd-MS²）. Compound Discoverer 3.0 software combined with mzCloud， mzVault， ChemSpider databases and HRMS database of components in traditional Chinese medicine were used to analyze and identify the collected data by HRMS， based on accurate relative molecular mass， retention time and characteristic ion fragmentation of the compounds， as well as literature information and relevant reference materials. Result:A total of 51 chemical constituents were identified in <italic>C</italic>.<italic> chinensis</italic> inflorescence， including 16 alkaloids， 14 flavonoids， 7 phenylpropanoids， 7 organic acids and 7 others. Among them， 10 components ［berberine， palmatine， coptidine， rutin， quercetin， isoquercitrin， chlorogenic acid， cryptochlorogenic acid，<italic> D</italic>-（-） quinic acid and <italic>D</italic>-proline］ were unambiguously identified by comparing with reference standards. Conclusion:The established UPLC-Q-Orbitrap HRMS can be used to accurately analyze and identify chemical constituents of <italic>C. chinensis</italic> inflorescence. A total of 41 chemical constituents are reported from <italic>C. chinensis</italic> inflorescence for the first time and 6 alkaloids are found from the <italic>C. chinensis</italic> for the first time. These findings can provide methodological reference and experimental basis for the basic research of quality evaluation and efficacy materials of <italic>C. chinensis</italic> inflorescence， and lay a foundation for its further development and utilization.

Research advances on the chemical constituents and pharmacological effects of snow lotus / 药学学报

Snow lotus is a medicinal plant with a wide range of pharmacological activities. It has been used to treat rheumatoid arthritis, cough with cold, stomach ache, dysmenorrhea, and altitude sickness in traditional medicine. This review summarizes the bioactive components in six species of snow lotus including flavonoids, lignans, phenolic compounds, phenylpropanoids, and sesquiterpenes present in Saussurea involucrate (SI), Saussurea obvallata (SO), Saussurea laniceps (SL), Saussurea medusa (SM), Saussurea stella (SS) and Saussurea tridactyla (ST). We review the pharmacological and related molecular mechanisms by which these components exert antineoplastic, anti-inflammatory, and antioxidant effects and promote lipid catabolism, and provide a reference for the future study of the traditional Chinese medicinal chemistry and pharmacological activities of snow lotus.

Shen-Kang protects against tacrolimus-induced renal injury

BACKGROUND/AIMS@#Evidence suggests that Shen-Kang (SK), a traditional Chinese herbal medicine, protects against various types of renal injury. In this study, we evaluated whether SK treatment confers renoprotection in a rat model of chronic tacrolimus (TAC) nephropathy.@*METHODS@#Rats were treated daily with TAC (1.5mg/kg, subcutaneously) and SK (450 mg/kg, intravenously) for 4 weeks. The effects of SK on TAC-induced renal injury were assessed by measuring renal function, urine albumin excretion, histopathology, inflammatory cell infiltration, expression of profibrotic (transforming growth factor β1 [TGF-β1] and TGF-β inducible gene-h3 [βig-h3]) and proinflammatory cytokines, oxidative stress, and apoptotic cell death.@*RESULTS@#Administration of SK preserved glomerular integrity (fractional mesangial area and Wilms tumor 1-positive glomeruli), attenuated tubulointerstitial fibrosis, and reduced the number of ectodermal dysplasia 1-positive cells, and this was paralleled by improved urine albumin excretion and renal dysfunction. At the molecular level, SK treatment suppressed expression of TGF-β1/Smad2/3, βig-h3, and proinflammatory cytokines. Oxidative stress and apoptotic cell death were significantly decreased with SK treatment, and apoptosis-related genes were regulated toward cell survival (active caspase-3 and the B-cell lymphoma-2/Bcl2-associated X [Bcl-2/Bax] ratio).@*CONCLUSIONS@#SK protects against TAC-induced renal injury.

Chemical components and pharmacological effects for Guizhi Fuling Prescription and predictive analysis on quality marker (Q-marker) / 中草药

Guizhi Fuling Prescription is a classic prescription for promoting blood activation and resolving stasis. It has the functions of improving blood rheology, regulating endocrine, anti-inflammation, anti-cancer, and analgesia. In ancient times, it was used to treat women’s bleeding during pregnancy, abdominal pain, and postpartum lochia. It is also often used to treat gynecological diseases in modern clinics, such as uterine fibroids, ovarian cysts, dysmenorrhea, endometriosis and so on. This paper reviewed the research progress of chemical constituents, pharmacological activities, clinical application, and quality control of Guizhi Fuling Prescription in recent years. On the basis of this, the quality markers of Guizhi Fuling Prescription are predicted and analyzed based on the “five principles” of quality markers of Chinese materia medica in order to provide reference for the study of quality control of Guizhi Fuling Prescription.

The role of neutrophils in triptolide-induced liver injury / 中国天然药物

Triptolide (TP) induces severe liver injury, but its hepatotoxicity mechanisms are still unclear. Inflammatory responses may be involved in the pathophysiology. Neutrophils are the first-line immune effectors for sterile and non-sterile inflammatory responses. Thus, the aim of the present study was to investigate the neutrophilic inflammatory response in TP-induced liver injury in C57BL/6 mice. Our results showed that neutrophils were recruited and accumulated in the liver, which was parallel to or slightly after the development of liver injury. Neutrophils induced release of myeloperoxidase and up-regulation of CD11b, which caused cytotoxicity and hepatocyte death. Hepatic expressions of CXL1, TNF-α, IL-6, and MCP1 were increased significantly to regulate neutrophils recruitment and activation. Up-regulation of toll like receptors 4 and 9 also facilitated neutrophils infiltration. Moreover, neutrophils depletion using an anti-Gr1 antibody showed mild protection against TP overdose. These results indicated that neutrophils accumulation might be the secondary response, not the cause of TP-induced liver injury. In conclusion, the inflammatory response including neutrophil infiltration may play a role in TP-induced hepatotoxicity, but may not be severe enough to cause additional liver injury.

The role of neutrophils in triptolide-induced liver injury / 中国天然药物

Triptolide (TP) induces severe liver injury, but its hepatotoxicity mechanisms are still unclear. Inflammatory responses may be involved in the pathophysiology. Neutrophils are the first-line immune effectors for sterile and non-sterile inflammatory responses. Thus, the aim of the present study was to investigate the neutrophilic inflammatory response in TP-induced liver injury in C57BL/6 mice. Our results showed that neutrophils were recruited and accumulated in the liver, which was parallel to or slightly after the development of liver injury. Neutrophils induced release of myeloperoxidase and up-regulation of CD11b, which caused cytotoxicity and hepatocyte death. Hepatic expressions of CXL1, TNF-α, IL-6, and MCP1 were increased significantly to regulate neutrophils recruitment and activation. Up-regulation of toll like receptors 4 and 9 also facilitated neutrophils infiltration. Moreover, neutrophils depletion using an anti-Gr1 antibody showed mild protection against TP overdose. These results indicated that neutrophils accumulation might be the secondary response, not the cause of TP-induced liver injury. In conclusion, the inflammatory response including neutrophil infiltration may play a role in TP-induced hepatotoxicity, but may not be severe enough to cause additional liver injury.

Reduced corporal fibrosis to protect erectile function by inhibiting the Rho-kinase/LIM-kinase/cofilin pathway in the aged transgenic rat harboring human tissue kallikrein 1.

Our previous studies have demonstrated that erectile function was preserved in aged transgenic rats (TGR) harboring the human tissue kallikrein 1 (hKLK1), while the molecular level of hKLK1 on corporal fibrosis to inhibit age-related erectile dysfunction (ED) is poorly understood. Male wild-type Sprague-Dawley rats (WTR) and TGR harboring the hKLK1 gene were fed to 4- or 18-month-old and divided into three groups: young WTR (yWTR) as the control, aged WTR (aWTR), and aged TGR (aTGR). Erectile function of all rats was assessed by cavernous nerve electrostimulation method. Masson's trichrome staining was used to evaluate corporal fibrosis in the corpus cavernosum. We found that the erectile function of rats in the aWTR group was significantly lower than that of other two groups. Masson's trichrome staining revealed that compared with those of the yWTR and aTGR groups, the ratio of smooth muscle cell (SMC)/collagen (C) was significantly lower in the aWTR group. Immunohistochemistry and Western blotting analysis were performed, and results demonstrated that expression of α-SMA was lower, while expressions of transforming growth factor-ß 1 (TGF-ß1), RhoA, ROCK1, p-MYPT1, p-LIMK2, and p-cofilin were higher in the aWTR group compared with those in other two groups. However, LIMK2 and cofilin expressions did not differ among three groups. Taken together, these results indicated that the RhoA/ROCK1/LIMK/cofilin pathway may be involved in the corporal fibrosis caused by advanced age, and hKLK1 may reduce this corporal fibrosis by inhibiting the activation of this pathway to ameliorate age-related ED.

Ginsenoside Rb1 Attenuates Isoflurane/surgery-induced Cognitive Dysfunction via Inhibiting Neuroinflammation and Oxidative Stress / 生物医学与环境科学（英文）

<p><b>OBJECTIVE</b>Anesthetic isoflurane plus surgery has been reported to induce cognitive impairment. The underlying mechanism and targeted intervention remain largely to be determined. Ginsenoside Rb1 was reported to be neuroprotective. We therefore set out to determine whether ginsenoside Rb1 can attenuate isoflurane/surgery-induced cognitive dysfunction via inhibiting neuroinflammation and oxidative stress.</p><p><b>METHODS</b>Five-months-old C57BL/6J female mice were treated with 1.4% isoflurane plus abdominal surgery for two hours. Sixty mg/kg ginsenoside Rb1 were given intraperitoneally from 7 days before surgery. Cognition of the mice were assessed by Barnes Maze. Levels of postsynaptic density-95 and synaptophysin in mice hippocampus were measured by Western blot. Levels of reactive oxygen species, tumor necrosis factor-α and interleukin-6 in mice hippocampus were measured by ELISA.</p><p><b>RESULTS</b>Here we show for the first time that the ginsenoside Rb1 treatment attenuated the isoflurane/surgery-induced cognitive impairment. Moreover, ginsenoside Rb1 attenuated the isoflurane/surgery-induced synapse dysfunction. Finally, ginsenoside Rb1 mitigated the isoflurane/surgery-induced elevation levels of reactive oxygen species, tumor necrosis factor-α and interleukin-6 in the mice hippocampus.</p><p><b>CONCLUSION</b>These results suggest that ginsenoside Rb1 may attenuate the isoflurane/surgery-induced cognitive impairment by inhibiting neuroinflammation and oxidative stress pending future studies.</p>

Traditional Chinese medicine in stem cell proliferation and tissue engineering / 中国组织工程研究

BACKGROUND:Some Chinese herbal ingredients produce the analogical and pharmacological effects equivalent to growth factors, which can promote cel proliferation as wel as tissue and organ recovery and regeneration. Additional y, they possess low price and relative stable physicochemical property. Thus, the applications of traditional Chinese medicine in tissue engineering has attracted more attentions of researchers al over the world. OBJECTIVE:To review the application of the traditional Chinese medicine in stem cel proliferation and tissue engineering. METHODS:A computer-based retrieval of PubMed and CNKI databases was performed for articles concerning the application of traditional Chinese medicine in stem cel proliferation and tissue engineering published from 1978 to 2015. The keywords were“the traditional Chinese medicine, tissue engineering, application, stem cel , anti-inflammatory, cross linking, surface modification, osteoblast, blood vessel”in English and Chinese, respectively. RESULTS AND CONCLUSION:Natural medicine and the traditional Chinese medicine are expected to be applied in tissue engineering as a surrogate of growth factor and antibiotics, which exert anti-inflammatory, angiogenesis, surface modification, anticoagulation and cross-linking roles as wel as promote proliferation and differentiation of stem cel s in tissue engineering.

Isoflavones and Prostate Cancer: A Review of Some Critical Issues / 中华医学杂志(英文版)

<p><b>OBJECTIVE</b>The purpose of this review is to discuss some critical issues of isoflavones protective against the development of prostate cancer (PCa).</p><p><b>DATA SOURCES</b>Data cited in this review were obtained primarily from PubMed and Embase from 1975 to 2015.</p><p><b>STUDY SELECTION</b>Articles were selected with the search terms "isoflavone", "Phytoestrogen", "soy", "genistin", and "PCa ".</p><p><b>RESULTS</b>Isoflavones do not play an important role on prostate-specific antigen levels reduction in PCa patients or healthy men. The effect of isoflavones on sex hormone levels and PCa risk may be determined by equol converting bacteria in the intestine, specific polymorphic variation and concentrations of isoflavones. The intake of various types of phytoestrogens with lower concentrations in the daily diet may produce synergistic effects against PCa. Moreover, prostate tissue may concentrate isoflavones to potentially anti-carcinogenic levels. In addition, it is noteworthy that isoflavones may act as an agonist in PCa.</p><p><b>CONCLUSIONS</b>Isoflavones play a protective role against the development of PCa. However, careful consideration should be given when isoflavones are used in the prevention and treatment of PCa.</p>

Application of microscopic spectroscopy in quality control of Niuhuang Qingxin pills / 中国中药杂志

Application of microscopic spectroscopy in quality control of Niuhuang Qingxin pills was discussed. First, microscopic characteristics specified by the statutory standard of Niuhuang Qingxin pills were summarized. Then new identification method was established for Dioscoreae Rhizoma, Saigae Tataricae Cornu, Cinnamomi Cortex and Saposhnikoviae Radix. Finally, microscopic spectroscopy was used for test of Dioscoreae Rhizoma's adulterant Dioscoreae Fordii Rhizoma.It was the first time for this technology being applied in adulteration test of Chinese patent medicine.The results showed that Saigae Tataricae Cornu was not detected in 2 batches of Niuhuang Qingxin pills from 1 manufacturer while Dioscoreae Fordii Rhizoma was detected in 3 batches of samples from 2 manufacturers. The proposed methods were accurate, simple, rapid, objective and economic, which offered a more comprehensive approach for quality control of Niuhuang Qingxin pills. It was indicated that conventional technology such as microscopic spectroscopy could play an important role in identification of traditional Chinese medicine whose index ingredient was deficient or tiny.

[Concentration of basic fibroblast growth factor in plasma and cavernous corpus of aged rat].

OBJECTIVE: To investigate the concentration of basic fibroblast growth factor (bFGF) in aged rat plasma and penile tissues. METHODS: Twelve 24-month-old rats and ten 12-week-old rats were selected. We assessed the erectile responses of rats to cavernous nerve electrostimulation. Then the concentrations of bFGF in the rats' plasma and penile tissues were detected by ELISA kit and smooth muscle contents in the rats' cavernous corpus were evaluated by masson trichrome staining. RESULTS: Compared with the young rats, we found that the erectile function of the aged rats were significantly attenuated (The Max ICP/MAP in the aged rats were 0.41±0.05, 0.44±0.04 and 0.51±0.06 at 2.5 volts, 5.0 volts and 7.5 volts respectively while the Max ICP/MAP in the normal controls were 0.70±0.06, 0.75±0.07 and 0.81±0.04 at 2.5 volts, 5 volts and 7.5 volts respectively, P<0.05). The concentrations of bFGF [The bFGF levels in plasma and penile tissues in the aged rat were (6.43±0.51) µg/L and (598.6±51.7) pg/mg protein respectively while the bFGF levels in the normal control were (10.53±0.42) µg/L and (985.8±76.8) pg/mg protein] were significantly reduced (P<0.05). Furthermore, the smooth muscle contents in the aged rats' penile tissues (0.038±0.005) were dramatically decreased compared with the normal control (0.075±0.006, P<0.05). CONCLUSION: The reduced levels of bFGF may be related to the decreased smooth muscle contents in the penile tissues of the aged rats.

Preliminary investigation on polymorphs of two traditional Chinese medicine reference substances / 中国中药杂志

Crystal structures of chemical drugs has been being investigated widely. But few attention has been paid to polymorphs-phenomena of active ingredients from Traditional Chinese Medicine(TCM). Taking anhydrous dehydroandrographolide and hydrousprim-O-glucosylcimifugin as example, differences between TCM reference substances (RSs) with different crystal structures were discussed by using microscopy, melting point determination, differential thermal analysis (DTA) and infrared (IR) methods. The results showed that different crystal structures could lead to change of melting points, thermal behaviors and IR spectrum. It's indicated that polymorphs may be considered if different physicochemical properties were obtained when applying TCM RS. Differences of chemical properties of active ingredients from TCM with different crystal structures need further investigation.

¹H-NMR based metabonomic approach to evaluate anti-coagulant effect of Danggui Sini decoction / 中国中药杂志

To study the anti-coagulant effect and influence of danggui Sini decoction (DSD) on rat's plasma endogenous metabolites by animal experiment and ¹H-NMR based metabolomics method. After intragastric administration of Danggui Sini Decoction for 7 days, Plasma thrombin time (TT) was measured. Rat plasma metabolic fingerprint in two groups was analyzed using ¹H-NMR, based on which the principal component analysis( PCA) and orthogonal partial least-squares discriminant analysis(OPLS-DA) models for metabonomic analysis. Potential biomarkers were screened by using variable importance in the projection (VIP) and T test. DSD could prolong TT of the rat significantly (P < 0.05). Compared with control group, six kinds of endogenous metabolites in DSD group change significantly (P < 0.05), among which isobutyrate, carnitine and phenylalanine content had an upward trend (P < 0.01) and lysine, Histidine and cholesterol content had a downward trend (P < 0.05). It is likely that carnitine, phenylalanine, Histidine and cholesterol are the potential metabolic markers in the anti-coagulant process and DSD affects the platelet aggregation and the expression of tissue factor and fiber protease by regulating the energy, amino acid and lipid metabolism.

Simultaneous determination of five anthraquinones in a Chinese traditional preparation by RP-HPLC using an improved extraction procedure / 中西医结合学报

<p><b>OBJECTIVE</b>The stable quality of Chinese herbal medicines is a critical factor for their reliable clinical efficiency. An improved liquid-liquid extraction procedure and a liquid chromatographic method were developed to simultaneously analyze five anthraquinones (aloe-emodin, rhein, emodin, chrysophanol and physcion) in a Chinese traditional hospital preparation, Fuyankang mixture, in order to quantitatively control its quality in a more effective way.</p><p><b>METHODS</b>A more economical and repeatable extraction procedure based on conventional liquid-liquid extraction technique was developed and used to extract five marker components in Fuyankang mixture. These anthraquinones were separated in less than 20 min on a C18 column with methanol and 0.1% phosphoric acid (88:12, v/v) as mobile phase. The method was validated for specificity, precision, spiked recovery and stability.</p><p><b>RESULTS</b>Compared to conventional liquid-liquid extraction, the improved liquid-liquid extraction was found to be more effective for simultaneous extraction of anthraquinones from an aqueous Chinese herbal preparation, especially for hydrophobic compounds. The improved extraction method was successfully applied to determine the content of five marker components in Fuyankang mixture by the means of reverse phase high-performance liquid chromatography.</p><p><b>CONCLUSION</b>The improved extraction procedure may be suitable for routine quality control of Fuyankang mixture and other traditional preparations at city-level hospitals in China.</p>

[Influence of photoselective vaporization of prostate on erectile function in patients with benign prostatic hyperplasia].

OBJECTIVE: To assess the influence of photoselective vaporization of the prostate (PVP) on the erectile function of the patient with benign prostatic hyperplasia (BPH). METHODS: Using IIEF-5, we conducted a questionnaire investigation among 210 BPH patients before and after treated by PVP (n = 80) and transurethral resection of the prostate (TURP, n = 130). We also reviewed the clinical data and compared the pre- and post-operative penile erectile function between the two groups of patients. RESULTS: Follow-up was completed in 76 cases of PVP and 123 of TURP. The baseline data showed no statistically significant differences between the two groups in age, prostate volume, IPSS, QOL, Qmax, post void urine residual volume and IIEF-5 scores (P>0.05). Compared with the IEFF-5 score at the baseline (21.88 +/- 2.46), those at 3, 6 and 12 months after PVP were 16.72 +/- 3.17, 19.34 +/- 2.46 and 19.29 +/- 2. 18, respectively, significantly decreased at 3 months (P = 0.042), but with no remarkable difference at 6 and 12 months (P >0.05). Nor were there significant differences in the IIEF-5 score between the PVP and TURP groups at any time points (P>0.05). At 6 months after surgery, the incidence rates of erectile dysfunction were 11.7% and 13.7% in the TURP and PVP groups, respectively (P>0.05). CONCLUSION: PVP may reduce erectile function in some cases in the early stage after surgery, but this adverse effect does not last long and is basically similar to that of TURP.