Objective To explore the application value of dynamic airway computed tomography(DACT)based on retrospective ECG-gating technology in the diagnosis of cardiovascular-related airway stenosis.Methods A retrospective analysis was performed on the bronchoscopy and DACT data of 48 children clinically suspected of having congenital heart disease(CHD)or cardiovascular-related airway stenosis.The image quality of DACT was assessed,and the accuracy differences in diagnosing airway abnormalities between bronchoscopy and DACT were compared.The correlation between DACT and bronchoscopy in diagnosing the degree of airway steno-sis was also evaluated.Results The DACT image quality met diagnostic requirements for all children.There was no significant statistical difference in the diagnosis of airway abnormalities between DACT based on retrospective ECG-gating technology and bronchoscopy.A good correlation was observed between DACT and bronchoscopy in the grading of tracheal stenosis.Conclusion DACT based on retrospective ECG-gating technology can effectively address the issue of motion artifacts in CT scans among infants and young children.It has certain value in clarifying the diagnosis of cardiovascular-related airway stenosis,guiding treatment,and assessing prognosis.

Objective To explore the application value of dynamic airway computed tomography(DACT)based on retrospective ECG-gating technology in the diagnosis of cardiovascular-related airway stenosis.Methods A retrospective analysis was performed on the bronchoscopy and DACT data of 48 children clinically suspected of having congenital heart disease(CHD)or cardiovascular-related airway stenosis.The image quality of DACT was assessed,and the accuracy differences in diagnosing airway abnormalities between bronchoscopy and DACT were compared.The correlation between DACT and bronchoscopy in diagnosing the degree of airway steno-sis was also evaluated.Results The DACT image quality met diagnostic requirements for all children.There was no significant statistical difference in the diagnosis of airway abnormalities between DACT based on retrospective ECG-gating technology and bronchoscopy.A good correlation was observed between DACT and bronchoscopy in the grading of tracheal stenosis.Conclusion DACT based on retrospective ECG-gating technology can effectively address the issue of motion artifacts in CT scans among infants and young children.It has certain value in clarifying the diagnosis of cardiovascular-related airway stenosis,guiding treatment,and assessing prognosis.

Objective To explore the application of standardized teaching mode in clinical teaching for B-type ultrasound-guided peripherally inserted central catheters(PICC),and to discuss its influence on the teaching quality,comprehensive skills and student satisfaction.Methods A total of 74 nurses,who learned B-type ultrasound-guided PICC operation at the Department of Emergency of a certain grade Ⅲ-A hospital in Guangzhou City of China from September 2021 to September 2023,were randomly divided into the study group and the control group with 37 nurses in each group.The teaching content of both groups was B-type ultrasound-guided PICC operation.The conventional teaching method was adopted for the control group,while on the basis of the conventional teaching method,additional standardized teaching mode was carried out for the study group.Teaching and training lasted for 3 months.The management indicators,teaching quality,comprehensive skills and student satisfaction with teaching were compared between the two groups.Results Compared with the control group,in the study group the catheterization time was shorter,the pain score was lower,and the success rate of single puncturing was higher(all P＜0.05).The results of final theory examination,case analysis ability,and clinical actual operation score(including the indications,puncturing method,and puncturing technique of B-type ultrasound-guided PICC)in the study group were significantly better than those in the control group(all P＜0.05).The comprehensive skills were remarkably improved in both groups.The scores of doctor-patient communication,physical examination,medical ethics,operation process in the study group were obviously higher than those in the control group(all P＜0.05).Moreover,the expression ability,the sense of team cooperation,the ability to search and read literature,the ability of clinical practice,the degree of knowledge mastery,the ability to analyze and solve problems,and the learning initiative in the study group were prominently better than those in the control group(all P＜0.05).Conclusion In clinical teaching for B-type ultrasound-guided PICC operation,the implement of standardized teaching mode can help to improve the quality of teaching and improve the nurse s comprehensive skills of PICC operation with higher degree of satisfaction with teaching,therefore,this kind of teaching mode is worth popularizing and applying.

OBJECTIVE To evaluate the efficacy and safety of four cyclin-dependent kinase 4/6 （CDK4/6） inhibitors （dalpicilib， abemacilib， ribocilib， palbocilib） combined with endocrine drugs in the treatment of hormone receptor-positive/human epidermal growth factor receptor 2-negative （HR+/HER2－） breast cancer. METHODS Computer searches were conducted on PubMed， the Cochrane Library， Web of Science， Embase， CNKI， Wanfang data and VIP to collect randomized controlled trials （RCTs） about CDK4/6 inhibitors combined with endocrine drugs （trial group） versus endocrine drugs alone or combined with placebo （control group）. The search period was from the establishment of the database to April 2023. After literature screening， data extraction and quality evaluation， a meta-analysis was conducted by using RevMan 5.4.1 software. RESULTS A total of 22 articles were included， involving 15 RCTs with a total of 18 574 patients. The meta-analysis results showed that the progression free survival [HR＝0.77， 95%CI （0.74， 0.79）， P＜0.000 1]， overall survival [HR＝0.91， 95%CI （0.87， 0.94）， P＜0.000 01]， objective response rate [OR＝1.71， 95%CI （1.51， 1.93）， P＜0.000 01] and clinical benefit rate [OR＝1.73， 95%CI （1.52， 1.95）， P＜0.000 01] of the trial group were significantly better than control group. The incidence of adverse drug reactions≥3 levels [OR＝10.28，95%CI （6.97，15.17），P＜0.000 01]， neutropenia [OR＝65.09， 95%CI （36.43， 116.31）， P＜0.000 01]， leukopenia [OR＝22.90， 95%CI （15.40， 34.04）， P＜0.000 01]， anemia [OR＝5.71， 95%CI （4.51， 7.22）， P＜0.000 01]， diarrhea [OR＝ 3.00， 95%CI （1.19， 7.51）， P＜0.05] and nausea [OR＝1.99， 95%CI （1.52， 2.60）， P＜0.000 01] in the trial group was significantly higher than control group. CONCLUSIONS The combination of CDK4/6 inhibitors and endocrine drugs has a significant effect on HR+/HER2－ breast cancer， with a high incidence of adverse reactions， especially hematotoxicity.

Objective:To investigate the methylation status of SDC2, PPP2R5C and ADHFE1 genes in stool and their values in the screening of colorectal cancer and precancerous lesions.Methods:From August 2020 to March 2021, 64 patients with colorectal cancer, 72 patients with adenoma, 33 patients with hyperplastic polyps and 59 healthy people were recruited from Qingdao Central Hospital Affiliated to Qingdao University, and the morning stool samples were collected from the research subjects. The genomic DNA was extracted and modified with sulfite. The methylation status of SDC2, PPP2R5C and ADHFE1 genes were detected by methylation specific polymerase chain reaction (MSP), and the fecal occult blood test (FOBT) was performed. Taking the pathological results as the gold standard, receiver operating characteristic (ROC) curve and area under the curve (AUC) were used to compare the effect of combined detection of methylation of three genes and FOBT in predicting colorectal cancer and precancerous lesions. R-Studio software was used to construct a nomogram for the prediction of colorectal cancer with combined detection of gene methylation in stool and other clinical features, and the calibration and validation were performed.Results:The positive rates of combined detection of methylation of SDC2, PPP2R5C and ADHFE1 genes in stool were higher than those of FOBT in colorectal cancer+adenoma [74.3% (101/136) vs. 47.1% (64/136), χ2 = 23.20, P = 0.001], colorectal cancer [90.6% (58/64) vs. 70.3% (45/64), χ2 = 8.91, P = 0.003] and adenoma [59.7% (43/72) vs. 26.4% (19/72), χ2 = 14.43, P = 0.002]. There was no significant difference in the positive rates in hyperplastic polyps [21.2% (7/33) vs. 6.1% (2/33), χ2 = 0.12, P = 0.125] and healthy controls [10.2% (6/59) vs. 8.5% (5/59), χ2 = 4.01, P = 1.000]. The combined detection of gene methylation was better than FOBT in the prediction of colorectal cancer + adenoma [AUC: 0.85 (95% CI 0.80-0.91) vs. 0.71 (95% CI 0.64-0.78), P < 0.05], especially in the prediction of adenoma [AUC: 0.82 (95% CI 0.74-0.89) vs 0.64 (95% CI 0.57-0.69), P < 0.001]. The sensitivity and specificity of ADHFE1 gene methylation status in predicting colorectal cancer were high (90.6% and 96.6%). In colorectal cancer patients over 50 years old, the positive rate of combined detection of gene methylation was higher than that of FOBT [90.2% (55/61) vs. 68.9% (42/61), P < 0.05]. The nomogram calibration curve for predicting colorectal cancer constructed based on the combined detection of gene methylation and each clinical feature showed a high degree of concordance between the predicted and observed diagnostic performance of colorectal cancer. Conclusions:The methylation levels of SDC2, PPP2R5C AND ADHFE1 genes in stool are increased in patients with colorectal cancer or adenoma. The combined detection of gene methylation is expected to be a non-invasive method for the screening of colorectal cancer and precancerous lesions.

OBJECTIVE: To analyze ultrasonographic finding in fetuses with Wolf-Hirschhorn syndrome (WHS) and refine the critical region on chromosome 4p16.3 for WHS-associated fetal growth retardation (FGR). METHODS: In total 2262 fetuses with abnormal ultrasonographic findings who underwent prenatal karyotyping and chromosomal microarray analysis were reviewed. WHS-associated 4p deletions detected in these fetuses were compared, and prenatal ultrasound findings in such fetuses were summarized. Meanwhile, WHS cases with prenatal ultrasound findings and isolated 4p deletions in previous studies were included for further analysis. An analysis of smallest region of overlap (SRO) among discrepant 4p deletions in these cases above was performed to define a critical region for FGR. RESULTS: 4p deletions were detected in 10 of the 2262 fetuses and 5.0% of the 202 fetuses with FGR. Combined with 80 WHS cases from previous studies, the most common prenatal ultrasound finding was FGR, which yielded a frequency of 76.7%. In addition, a SRO spanning approximately 419 kb (genomic position: 1.32-1.74 Mb) on chromosome 4p16.3 was discovered by comparing the unusual 4p deletions among the 10 fetuses. The region contained seven protein-coding genes, including TACC3, SLBP, TMEM129, FAM53A, MAEA, UVSSA and CRIPAK. CONCLUSION For fetuses with WHS, the most common prenatal ultrasound phenotype was FGR. A region between 1.32 Mb to 1.74 Mb from the telomere on chromosome 4p16.3 is critical for WHS-associated FGR, for which TACC3 and SLBP are the candidate genes.

Objective To observe the clinical effect of the Bushen-Qiangjin capsule and calcium D in the treatment of aromatase inhibitors-associated bone loss (AIBL) in breast cancer patients. Methods A total of 65 patients were randomized into a treatment group and a control group, 32 in the control group taking calcium D, and 33 in the treatment group taking calcium D and Bushen-Qiangjin capsule. After a 3-month treatment, the bone mineral density T (BMD), bone-specific alkaline phosphatase (BALP), bone gla protein (BGP) and tartrate resistant acid phosphatase (TrACP) of two groups were evaluated. Results The BMD increased significantly after treatment in both groups (P<0.05), and the therapeutic efficacy of the treatment group was better than of the control group (P<0.05). After treatment, the level of BALP (308.76 ± 10.99 U/L vs. 280.00 ± 7.44 U/L, t=8.170) and the BGP (42.21 ± 3.04 ng/ml vs. 34.38 ± 2.06 ng/ml, t=6.818) of the treatment group were significantly higher than those of the control group (P<0.01). The level of TrACP decreased significantly after treatment in both groups (P<0.05), and the TrACP (60.12 ± 4.58 U/L vs. 67.25±4.06 U/L, t=1.653) of treatment group was significantly lower than that of the control group (P<0.05). Conclusions The Bushen-Qiangjin capsule can produce a content efficacy in treating AIBL in breast cancer patients, improving the BMD and bone metabolism.

OBJECTIVE: To investigate the efficacy and safety of the bladder training in male patients before urinary catheter removal after mid-low rectal cancer surgery. METHODS: This was a prospective, open, randomized controlled study. INCLUSION CRITERIA: male patients; pathologically diagnosed as mid-low rectal adenocarcinoma; distance from tumor lower edge to anal margin ≤10 cm; standard radical surgery for rectal cancer, including intestinal resection and regional lymph node dissection. EXCLUSION CRITERIA: previous history of benign prostatic hyperplasia or history of prostate surgery; bladder dysfunction such as dysuria and urinary retention before surgery; local resection of rectal tumor or extended resection. According to the above criteria, 92 patients who underwent colorectal surgery at the Union Hospital of Fujian Medical University from June to December 2016 were prospectively included. The patients were randomly divided into bladder training group (n=43) and bladder non-training group (n=49) according to the random number table method. The study was approved by the Ethics Committee of the Union Hospital of Fujian Medical University (ethical approval number: 2016KY005) and registered with the China Clinical Trial Registration Center (ChiCTR) (registration No.ChiCTR-IOR-16007995). The implementation of patient's treatment measures, the data collection and analysis were based on the three-blind principle, using envelopes for distribution concealment. In the bladder training group, bladder training was routinely performed from the first day after operation to catheter removal, and in bladder non-training group the catheter was kept open till its removal. The catheter was removed in the early morning at the 5th day after surgery, and the spontaneous urine output was recorded and the residual urine volume of the bladder was measured after the first urination. The international prostate symptom score (IPSS) was applied to evaluate the patient's urinary function before and after surgery. RESULTS: The age of whole group was (58.6±10.9) years old, the body mass index was (22.4±2.7) kg/m , and the distance from tumor lower edge to anal margin was (6.5±1.9) cm. The baseline data, such as age, body mass index, distance from tumor lower edge to anal margin, preoperative IPSS score, preoperative bladder residual urine volume, neoadjuvant radiotherapy and chemotherapy, preventive ileostomy and surgical procedure were not significantly different between two groups (all P>0.05). There was no significant difference in IPSS scores evaluated at the second day (3.6±4.0 vs. 3.5±3.4, t=0.128, P=0.899) and one month (3.7±2.9 vs. 3.0±3.1, t=1.113, P=0.269) after catheter removal between the bladder training group and bladder non-training group. No significant difference in the postoperative residual urine volume of bladder (media 44 ml vs. 24 ml, Z=-1.466, P=0.143), the first spontaneous urination volume (median 200 ml vs. 150 ml, Z=-1.228, P=0.219) after catheter removal, and postoperative hospital stay [(8.2±4.5) days vs. (9.1±5.5) days, t=-0.805, P=0.423] was found. Urinary infection rate was 20.9%(9/43) in the training group, which was even higher than 8.2%(4/49) in the non-training group, but the difference was not significant(χ²=3.077, P=0.079). No patient needed re-catheterization in either group. CONCLUSIONS The routine bladder training after mid-low rectal cancer surgery does not improve the urinary function, and can not reduce the residual urine volume of bladder after catheter removal. This routine clinical practice is not helpful for the bladder function recovery after rectal cancer surgery.
Aged ; China ; Humans ; Laparoscopy ; Male ; Middle Aged ; Prospective Studies ; Recovery of Function ; Rectal Neoplasms ; surgery ; therapy ; Treatment Outcome ; Urinary Bladder ; surgery ; Urinary Retention ; therapy

Alcohol abuse leads to alcoholic liver disease and no effective therapy is currently available. Wuzhi Tablet (WZ), a preparation of extract fromthat is a traditional hepato-protective herb, exerted a significant protective effect against acetaminophen-induced liver injury in our recent studies, but whether WZ can alleviate alcohol-induced toxicity remains unclear. This study aimed to investigate the contribution of WZ to alcohol-induced liver injury by using chronic-binge and acute models of alcohol feeding. The activities of ALT and AST in serum were assessed as well as the level of GSH and the activity of SOD in the liver. The expression of CYP2E1 and proteins in the NRF2-ARE signaling pathway including NRF2, GCLC, GCLM, HO-1 were measured, and the effect of WZ on NRF2 transcriptional activity was determined. We found that both models resulted in liver steatosis accompanied by increased transaminase activities, but that liver injury was significantly attenuated by WZ. WZ administration also inhibited CYP2E1 expression induced by alcohol, and elevated the level of GSH and the activity of SOD in the liver. Moreover, the NRF2-ARE signaling pathway was activated by WZ and the target genes were all upregulated. Furthermore, WZ significantly activated NRF2 transcriptional activity. Collectively, our study demonstrates that WZ protected against alcohol-induced liver injury by reducing oxidative stress and improving antioxidant defense, possibly by activating the NRF2-ARE pathway.

OBJECTIVE:To observe the effect of trantuzumab combined with preoperative adjuvant chemotherapy in the treat-ment of human epidermal growth factor receptors 2 (Her-2) positive breast cancer,and to investigate its clinical value. METH-ODS:80 patients with Her-2 positive breast cancer were selected and randomly divided into observation group and control group, with 40 cases in each group. The control group received routine preoperative adjuvant chemotherapy+modified radical mastectomy for Her-2 positive breast cancer;observation group was additionally treated with trastuzumab intravenously before operation,initial dose of 4 mg/kg,followed by 2 mg/kg,once a week,for consecutive 3 weeks,on the basis of control group. The effects of two regimen on the expression of HER-2,CD-34,MGA,E-cadherin and GCDFE-15 in Her 2 positive breast cancer focus were com-pared between 2 groups. ADR and follow-up survey were recorded. RESULTS:Compared with before chemotherapy,the expres-sion of HER-2(+)in observation group increased significantly,while that of HER-2(+ + +)decreased significantly;MGA posi-tive rate and GCDFP-15 positive rate decreased significantly while E-cadherin positive rate increased significantly;MDV of CD34 expression decreased significantly,with statistical significance(P<0.05 or P<0.01). Relapse rate and distance transport rate of ob-servation group were significantly lower than those of control group,with statistical significance(P<0.05). There was no statisti-cal significance in the incidence of ADR between 2 groups(P>0.05). CONCLUSIONS:Trastuzumab combined with preoperative adjuvant chemotherapy have good clinical efficacy and safety,and it can effectively reduce related indicator of Her-2 positive breast cancer focus. So it has positive significance in reducing recurrence and metastasis of breast cancer.