OBJECTIVE: To evaluate the efficacy and safety of denosumab in the treatment of prostate cancer with bone metastases. METHODS: Relevant studies were retrieved from PubMed, EMBASE, Cochrane, Web of Science, Sinomed , CNKI and Wanfang databases. The Cochrane risk-of-bias assessment tool was used to evaluate the quality of included studies, and relevant data were extracted. meta-analysis was performed using RevMan 5.4 and RStudio software, and forest plots were generated. RESULTS: Six randomized controlled trials (RCTs) were included. Compared with the control group, denosumab significantly reduced the risk of skeletal-related events (HR=0.78, 95% CI: 0.62-0.93). In terms of safety, denosumab did not increase the risk of total adverse events, severe adverse events and the adverse events higher than CTC grade 3. CONCLUSION Denosumab can delay the time to first skeletal-related event with good safety. However, due to the limitations of this study, further high-quality, large-sample, multicenter RCTs are needed to confirm these findings.
Humans ; Denosumab/therapeutic use* ; Bone Neoplasms/drug therapy* ; Prostatic Neoplasms/drug therapy* ; Male ; Randomized Controlled Trials as Topic ; Bone Density Conservation Agents/therapeutic use*

Objective:To compare the surgical outcomes of robotic natural orifice specimen extraction surgery (NOSES) and robotic-assisted radical resection for rectal cancer.Methods:A retrospective analysis using propensity score matching (PSM) was conducted on 547 patients who had undergone radical resection of rectal cancer at the First Affiliated Hospital of Nanchang University from June 2018 to March 2024. The study cohort comprised 157 patients in the robotic NOSES group and 390 in the robotic-assisted group. PSM was used in a 1:1 manner to match relevant general clinical preoperative data of the study patients (age, sex, body mass index, preoperative comorbidities, abnormal preoperative carcinoembryonic antigen (>6.5 μg/L) and carbohydrate antigen 19-9 levels (>27 kU/L), preoperative American Society of Anesthesiologists score, tumor diameter, tumor distance from the anal margin, and TNM stage), with a clamp value of 0.05. After performing PSM to match the general clinical data of the two groups of patients, 77 patients in each of the robotic NOSES and robotic-assisted groups were included in the analysis. We found no statistically significant difference in preoperative general clinical data between the robot NOSES and robot-assisted groups ( P>0.05). We compared the surgical outcomes, postoperative recovery, postoperative pathological data, and incidence of complications between the robotic NOSES and robot-assisted groups. Results:Compared with the robot-assisted groups. the robot NOSES group had a significantly shorter time to first postoperative passage of flatus (48 [38, 50] hours vs. 56 [50, 60] hours, Z=-7.513, P<0.001), time to taking a liquid diet (60 [54,63] hours vs. 66 [62, 72] hours, Z=-6.303, P<0.001), lower pain scores (3 [3, 4] vs. 4 [4, 5], Z=-5.237, P<0.001), and lower incision infection rates (0 vs. 5 [6.5%], χ 2=5.237, P=0.028) within 24 hours after surgery ( P<0.05). However, there were no significant differences in surgical time, intraoperative blood loss, postoperative hospital stay, postoperative anastomotic complications, or incidence of other complications between the two groups (all P>0.05). Conclusion:Robotic NOSES surgery is a safe and feasible procedure for resecting rectal cancer and postoperative recovery is faster after robotic NOSES than after standard robot-assisted surgery.

Objective To explore the value of functional magnetic resonance imaging(MRI)techniques,including intravoxel incoherent motion(IVIM),T1 mapping,and T2 mapping,in assessing the microstructural and perfusion changes in the kidneys of rats with intrauterine growth restriction(IUGR).Methods An IUGR rat model was established through a low-protein diet during pregnancy.Offspring from pregnant rats on a low-protein diet were randomly divided into an IUGR 8-week group and an IUGR 12-week group,while offspring from pregnant rats on a normal diet were divided into a normal 8-week group and a normal 12-week group(n=8 for each group).The apparent diffusion coefficient(ADC),true diffusion coefficient(Dt),pseudo-diffusion coefficient(D*),perfusion fraction(f),T1 value,and T2 value of the renal cortex and medulla were compared,along with serum creatinine and blood urea nitrogen levels among the groups.Results The Dt value in the renal medulla was higher in the IUGR 12-week group than in the IUGR 8-week group,and the D* value in the renal medulla was lower in the IUGR 12-week group than in both the normal 12-week group and the IUGR 8-week group(P＜0.05).The T1 value in the renal medulla was higher than in the cortex in the IUGR 8-week group,and the T1 value in the renal medulla was higher in the IUGR 12-week group than in both the IUGR 8-week group and the normal 12-week group,with the cortical T1 value in the IUGR 12-week group also being higher than that in the normal 12-week group(P＜0.05).The T2 values in the renal medulla were higher than those in the cortex across all groups(P＜0.05).There were no significant differences in the T2 values of either the cortex or medulla among the groups(P＞0.05).There were no significant differences in serum creatinine and blood urea nitrogen levels among the groups(P＞0.05).Glomerular hyperplasia and hypertrophy without significant fibrotic changes were observed in the IUGR 8-week group,whereas glomerular atrophy,cystic stenosis,and interstitial inflammatory infiltration and fibrosis were seen in the IUGR 12-week group.Conclusions IVIM MRI can be used to assess and dynamically observe the microstructural and perfusion damage in the kidneys of IUGR rats.MRI T1 mapping can be used to evaluate kidney damage in IUGR rats,and the combination of MRI T1 mapping and T2 mapping can further differentiate renal fibrosis in IUGR rats.[Chinese Journal of Contemporary Pediatrics,2024,26(3):289-296]

Acute cerebral infarction(ACI)has the characteristics of onset nasty and high mortality,and thus the rapid determination of the occurrence and development of ACI plays a key role in the diagnosis,treatment and prognosis of ACI patients.It has shown that the serum level of human haptoglobin(Hp)is related to ACI.In this study,surface enhanced Raman scattering(SERS)combined with immune recognition was applied to establish a quantitative analysis method for serum Hp.Firstly,the SERS substrate of silver nanoparticles was prepared on silicon wafer,and 4-mercaptobenzoic Acid(MBA)was used as a Raman probe by forming Ag—S bond and connecting it on the surface of nanoparticles.The carboxyl group of MBA was linked to amino group of self-made high-affinity antibody through forming CO—NH structure thus forming a SERS self-assembled chip of Hp(Ag/MBA/anti-Hp).Hp in serum could be specifically captured by antibodies on SERS substrate,which caused the shift of SERS characteristic peak of MBA.The results showed that there was a good linear relationship between the logarithm of Hp concentration and the SERS characteristic peak shift of MBA.The detection range was 1-1000 ng/mL(R2=0.988).The Hp concentrations in serum of 90 ACI patients were determined by this method,and the results were consistent with those of ELISA method,which proved the practicability and accuracy of this method.This method was highly specific,simple and convenient,which could realize the specific recognition and quantitative analysis of serum Hp,so as to be an effective means for clinical detection of serum Hp,thus providing a reference for the treatment and prognosis of ACI.

A new method for simultaneous determination of 23 kinds of per-and polyfluoroalkyl substances(PFASs)(13 kinds of perfluoro carboxylic acids,4 kinds of perfluoro sulfonic acids,and 6 kinds of new substitutes)in plant leaf tissue by ultra-high performance liquid chromatography-tandem mass spectrometry(UHPLC-MS/MS)using automatic online solid phase extraction(SPE)to remove the matrix interference components in plant crude extracts was developed.The plant leaf samples were extracted twice with 1%formic acid-methanol solution,then evaporated to dry,redissolved with 70%methanol solution,and directly injected for analysis.After 23 kinds of target PFASs were purified automatically by online SPE with a WAX column,the six-way valve was switched to rinse PFASs onto an alkaline mobile phase system-compatible C18 analytical column.Then,the 23 kinds of target PFASs were separated within 16 min by gradient elution using a binary mobile phase system of methanol/water(Containing 0.4%ammonium hydroxide).Tandem mass spectrometry was performed in multiple reaction monitoring(MRM)mode for online detection of various PFASs,and quantification was carried out by internal standard method.The results of the method validation showed that satisfactory average recoveries of 23 kinds of PFASs in plant leaf samples(64.2%-125.5%),precision(relative standard deviations(RSDs)of 0.7%-12.8%),linearity(R2＞0.990),and sensitivity(the detection limits(S/N=3)were in the range of 0.02-0.50 μg/kg)were achieved.Finally,this method was used to detect PFASs in the marine green tide algae(Enteromorpha prolifera)and several tree leaves,and a total of 6 kinds of PFASs were detected,in which PFBA was the main contaminant.Compared with the reported offline SPE methods,the proposed online SPE technique significantly simplified the sample pretreatment process and provided an automatic,simple,and environment-friendly method for the routine monitoring of legacy and emerging PFASs in plant tissues.

Objective:Proximal femur tumor resection often leads to hip joint instability and functional loss.Various methods have been clinically applied to repair hip joint soft tissue function,but deficiencies remain.This study aims to evaluate the advantages and disadvantages of the ligament advanced reinforcement system(LARS)tumor tube in assisting soft tissue function reconstruction in patients undergoing tumor type artificial hip replacement surgery. Methods:This study included 85 patients(41 males,44 females)with proximal femoral tumors treated at the Xiangya Bone Tumor Treatment Center from January 2012 to January 2022,aged 10 to 79(38.5±18.2)years.Among them,13 cases had benign aggressive tumors,45 had primary malignant bone tumors,and 27 had bone metastases.Clinical data,imaging data,and intraoperative photos were collected.Patients were followed up and postoperative functional evaluations were conducted using the Musculoskeletal Tumor Society(MSTS)scoring system and Harris hip joint scoring system to assess limb function and hip joint function. Results:Preoperative pathological fractures were present in 37 cases(43.5％),with a lesion length of(9.4±2.9)cm.Among non-metastatic tumor patients,7 experienced postoperative recurrence,including 6 cases of osteosarcoma and 1 case of fibrosarcoma.Pulmonary metastases occurred in 9 osteosarcoma patients.Five patients required reoperation due to postoperative complications,including 3 cases of deep vein thrombosis,1 case of giant cell granuloma,and 1 case of prosthesis infection.Postoperatively,5 patients exhibited Trendelenburg gait,and 6 had leg length discrepancies.The postoperative MSTS score was 26.7±1.4,and the Harris score was 89.6±5.3. Conclusion:The LARS tumor tube can effectively assist in reconstructing the soft tissue function of the hip joint and greatly reduce postoperative complications,making it an effective technical improvement in joint function reconstruction in tumor type artificial hip replacement surgery.

Objective To observe the effects of Bushen Zhuyun Prescription on regulating mitochondrial function and endometrial angiogenesis;To explore its mechanism of improving endometrial receptivity.Methods The mouse model of controlled ovarian hyperstimulation(COH)was established,and the mice were randomly divided into normal group,model group,and Bushen group,with 20 mice in each group.Bushen group received Bushen Zhuyun Prescription for gavage for 11 d,and the normal group and model group received normal saline for gavage.The number of embryo implantation was counted,the endometrial morphology was observed by HE staining,α-smooth muscle actin(α-SMA)expression was observed by immunofluorescence staining.Human endometrial microvascular endothelial cells(HEMECs)were cultured in vitro,they were divided into control group,VEGFA group,Bushen group and VEGFA + Bushen group,and were intervened with VEGFA and/or Bushen Zhuyun Prescription medicated serum.The activities of mitochondrial respiratory chain complexes Ⅰ-Ⅳ,the content of ATP,the expression of PCNA and Caspase-3 were detected.Results Animal experiment showed that,compared with the normal group,the number of embryo implantation in model group significantly decreased(P<0.05),α-SMA protein expression in endometrial tissue significantly decreased(P<0.05);compared with the model group,the number of embryo implantation in Bushen group significantly increased(P<0.05),α-SMA protein expression in endometrial tissue significantly increased(P<0.05).Cell experiment showed that,Bushen Zhuyun Prescription medicated serum could increase the activity of mitochondrial respiratory chain complexes Ⅰ-Ⅳ and ATP content in HEMECs,promote PCNA protein expression,and inhibit Caspase-3 protein expression(P<0.05,P<0.01).Conclusion Bushen Zhuyun Prescription can promote endometrial angiogenesis through improving mitochondrial function.

In order to solve the problem of resistance of Pseudomonas aeruginosa to multiple antibiotics, it is an effective way to find inhibitors of P. aeruginosa efflux pump. In this study, 15 new ornithine peptidomimetic derivatives were designed and synthesized by changing the side chain structure of natural amino acids with PAβN, a dipeptide efflux pump inhibitor, and their synergic activity with aztreonam, a monocyclic β-lactam antibiotic, against P. aeruginosa was evaluated. Among them, the representative compound 12b not only enhanced the antibacterial activity of β-lactam antibiotics aztreonam, ceftazidime and meropenem, but also significantly enhanced the antibacterial action of macrolide antibiotics clarithromycin, showing a broad-spectrum synergic sensitization effect. In addition, compound 12b also has a good safety. Preliminary mechanisms suggest that 12b works by directly targeting the efflux transporter MexB. These results provide a new lead compound for the development of a new class of efflux pump inhibitors against P. aeruginosa.

Objective:To compare the surgical outcomes of robotic natural orifice specimen extraction surgery (NOSES) and robotic-assisted radical resection for rectal cancer.Methods:A retrospective analysis using propensity score matching (PSM) was conducted on 547 patients who had undergone radical resection of rectal cancer at the First Affiliated Hospital of Nanchang University from June 2018 to March 2024. The study cohort comprised 157 patients in the robotic NOSES group and 390 in the robotic-assisted group. PSM was used in a 1:1 manner to match relevant general clinical preoperative data of the study patients (age, sex, body mass index, preoperative comorbidities, abnormal preoperative carcinoembryonic antigen (>6.5 μg/L) and carbohydrate antigen 19-9 levels (>27 kU/L), preoperative American Society of Anesthesiologists score, tumor diameter, tumor distance from the anal margin, and TNM stage), with a clamp value of 0.05. After performing PSM to match the general clinical data of the two groups of patients, 77 patients in each of the robotic NOSES and robotic-assisted groups were included in the analysis. We found no statistically significant difference in preoperative general clinical data between the robot NOSES and robot-assisted groups ( P>0.05). We compared the surgical outcomes, postoperative recovery, postoperative pathological data, and incidence of complications between the robotic NOSES and robot-assisted groups. Results:Compared with the robot-assisted groups. the robot NOSES group had a significantly shorter time to first postoperative passage of flatus (48 [38, 50] hours vs. 56 [50, 60] hours, Z=-7.513, P<0.001), time to taking a liquid diet (60 [54,63] hours vs. 66 [62, 72] hours, Z=-6.303, P<0.001), lower pain scores (3 [3, 4] vs. 4 [4, 5], Z=-5.237, P<0.001), and lower incision infection rates (0 vs. 5 [6.5%], χ 2=5.237, P=0.028) within 24 hours after surgery ( P<0.05). However, there were no significant differences in surgical time, intraoperative blood loss, postoperative hospital stay, postoperative anastomotic complications, or incidence of other complications between the two groups (all P>0.05). Conclusion:Robotic NOSES surgery is a safe and feasible procedure for resecting rectal cancer and postoperative recovery is faster after robotic NOSES than after standard robot-assisted surgery.

OBJECTIVES: Several countries have successfully eliminated measles, and China is making significant strides toward achieving this goal. This study focused on investigating the patterns of measles infections in Zhejiang Province, China, as well as control measures. The objective was to provide valuable insights that could contribute to the development of nationwide elimination strategies. METHODS: We analyzed measles surveillance data from 2005 to 2022 in Zhejiang Province. We utilized a joinpoint regression model to examine trends in measles. Additionally, we employed SaTScan version 9.5 to identify spatial-temporal clusters. Finally, we used an age-period-cohort model to assess the effects of age, period, and cohort. RESULTS: The age-standardized incidence rate (ASIR) of measles infection in Zhejiang Province from 2005 to 2022 was 5.24 per 100,000, showing a consistent and significant downward trend with an annual percentage change of -24.93% (p<0.05). After 2020, the ASIR for measles infection fell to below 0.1 per 100,000. The majority of measles cases occurred in individuals either without an immunization history or with an unknown immunization status, representing 41.06% and 41.40% of the cases from 2010 to 2022, respectively. According to data from the National Measles Surveillance System, the annual rate of discarded measles cases from 2009 to 2014, and the annual rate of discarded measles and rubella cases from 2015 to 2022, were both above 2 per 100,000, indicating the high sensitivity of the measles surveillance system. CONCLUSIONS The significant reduction in measles incidence from 2005 to 2022 demonstrates substantial progress in Zhejiang Province towards the elimination of measles.