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Based on the long bud stage phenotype of a new Lonicera japonica Flos variety "Huajin 6", using "Huajin 6" and "Da Mao Hua" as materials, probing the mechanism of its phenotype formation. Detection of endogenous Jasmonic acid hormones (JAs) content; the genes related to jasmonic acid (JA) synthesis were identified by transcriptome analysis of Lonicera japonica; flower buds and flowers of "Huajin 6" and "Da Mao Hua" were collected at different periods, and the qRT-PCR (quantitative real-time PCR) technique was used to analyze the trend of the expression of synthesis-related enzyme genes in Lonicera japonica Flos during the bud stage. The study found that the content of JAs in "Huajin 6" Lonicera japonica Flos was significantly lower than that in "Da Mao Hua"; applying exogenous methyl-jasmonate (MeJA) to "Huajin 6" can restore its flowering phenotype, making it close to wild type Lonicera japonica Flos; there are significant differences in the expression of two allene oxide synthase genes (AOS), three lipoxygenase genes (LOX), and two allene oxide cyclase genes (AOC) in the flowers and buds of "Huajin 6" and "Da Mao Hua" at different periods. It is hypothesized that the low expression of JA synthesis-related enzyme genes in " Huajin 6" leads to the blockage of JA synthesis, which causes the formation of the long bud phenotype. This study laid a certain foundation for the genetic breeding of Lonicera japonica, provided a new idea for the improvement of Lonicera japonica varieties, and provided a reference for the study of JAs in plant flower organs.
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【Objective】 To introduce the key techniques of "one-cut" circumcision, and to compare its clinical efficacy with traditional circumcision. 【Methods】 A retrospective analysis was conducted on 120 cases of circumcision in our center during Jul.2020 and Jul.2022, including 60 cases in the "one-cut" group and 60 cases in the traditional circumcision group. The operation time, postoperative edema time, satisfaction with cosmetics and improvement of sexual life were compared between the two groups. 【Results】 Compared with the tradition group, the "one-cut" group had shorter operation time [(19.2±7.4) min vs. (23.1±1.7) min, P<0.001] , shorter postoperative edema time [(5.5±3.2) d vs. (9.6±5.5) d, P<0.001] , and higher satisfaction with cosmetics [(3.6±0.5) vs. (3.1±0.8), P<0.001)] , but there was no difference in improvement of sexual life between the two groups (P=0.08). 【Conclusion】 "One-cut" circumcision is easy to operate, with short operation time, fast postoperative recovery, neat incision and satisfactory appearance, which is worth popularizing.
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OBJECTIVE@#To investigate the causes of graft loss in kidney transplant recipients.@*METHODS@#We retrospectively analyzed the clinical data of 135 recipients with graft loss after renal transplantation in the Eighth Medical Center of Chinese PLA General Hospital from January 1, 2002 to January 1, 2022.@*RESULTS@#A total of 135 kidney transplant recipients experienced graft failure. The causes of graft loss included graft rejection (70 cases, 51.8%), death of the recipients with functional graft (37 cases, 27.4%), surgical complications (12 cases, 8.9%), drug toxicity (4 cases, 3.0%), carbapenem-resistant Klebsiella pneumoniae infection (4 cases, 3.0%), polyoma BK virus-related nephropathy (3 cases, 2.2%), primary nonfunctioning kidney (2 cases, 1.5%), recurrence of primary disease (2 cases, 1.5%), and prerenal acute renal failure (1 case, 0.7%).@*CONCLUSION@#The main cause of graft loss after renal transplantation is graft rejection, and the secondary cause is death of the recipient with functional graft, and other reasons can be rare.
Sujets)
Humains , Rejet du greffon , Transplantation rénale/effets indésirables , Études rétrospectivesRésumé
Nuclear transporter importin-β1 is emerging as an attractive target by virtue of its prevalence in many cancers. However, the lack of druggable inhibitors restricts its therapeutic proof of concept. In the present work, we optimized a natural importin-β1 inhibitor DD1 to afford an improved analog DD1-Br with better tolerability (>25 folds) and oral bioavailability. DD1-Br inhibited the survival of castration-resistant prostate cancer (CRPC) cells with sub-nanomolar potency and completely prevented tumor growth in resistant CRPC models both in monotherapy (0.5 mg/kg) and in enzalutamide-combination therapy. Mechanistic study revealed that by targeting importin-β1, DD1-Br markedly inhibited the nuclear accumulation of multiple CRPC drivers, particularly AR-V7, a main contributor to enzalutamide resistance, leading to the integral suppression of downstream oncogenic signaling. This study provides a promising lead for CRPC and demonstrates the potential of overcoming drug resistance in advanced CRPC via targeting importin-β1.
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Objective To provide references by analyzing the history, hotspot, and trend of the research in body donation. Methods CiteSpace software was used to conduct a co-occurrence network analysis. Totally 196 articles in CNKI database and 114 articles in Web of Science Core Collection Database were included. Results The number of articles in China increased in recent years. "Political and legal organizations" and "medical schools and departments" were main research institutions. "Death", "donation attitude", "ethics", and "humanity educations" were new emerging research directions in recent years. National studies of body donation were mainly conducted by USA and New Zealand, while most institutions were universities. High frequency keywords were "dissection", "cadaver", "anatomy" Conclusion Research in body donation in China shows a trend of increasing depth and diversity, while most research still lacks innovation and cooperation compared to national studies, especially studies in legislation and human ethics of body donation.
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Objective To explore the teaching effect of flipped classroom teaching mode supported by the 3D printing model in the embryology experiment. Methods Totally 76 students from class 2016 were randomly divided into two groups: the experimental group previewed the embryo 3D models before class and taught other students in class, while the control group did not preview the embryo 3D models before class. An embryo knowledge test and a questionnaire survey were carried out before and after the experimental class to compare the differences of knowledge mastery and self-evaluation between the two groups. Results In the aspect of self-evaluation, the self-evaluation of the experimental group students in explaining the causes and explaining the process of development was significantly improved after the lecture (P<0.05), while the self-evaluation of the control group students in identifying the structure, understanding knowledge, telling the causes and explaining the process of development was significantly improved (P< 0.05). In terms of knowledge test scores, the scores of students in the experimental group and the control group after teaching were higher than those before teaching (P < 0.05). The improvement of the knowledge test in the control group was significantly higher than that in the experimental group (P<0.05). The experiment group' s grades of knowledge test were significantly higher than the control group in the second experiment. 70.27% of the students thought that they were still lack of knowledge in the introspection of the causes of wrong answers. The misunderstanding of English nouns (15.54%), psychological factors (5.41%) and other factors (8.78%) also caused the students to lose points in the knowledge tests. Conclusion The combination of the 3D printing model and the flipped classroom teaching mode can effectively improve the teaching effect, which should be paid attention to in the reform of embryology experimental teaching.
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Extracellular matrix (ECM) is a major component of the cellular microenvironment.ECM not only provides physical support for cells, hut also participates in various biological processes.In recent years, hundreds of cancer-related ECM (C-ECM) genes have been identified, and some of them can he used as biomarkers.However, rich information about C-ECM genes is scattered among thousands of publications, and there is no systematic summary of their role in tumorigenesis.Here, we present the CECMAtlas (http://biokb.ncpsb.org.cn/CECMAtlas/), a database which collects 225 C-ECM genes and the information of biological processes that they participate in through literature mining and manual curation.This database will contribute to the study of the mechanism of tumorigenesis and possible clinical application.
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Objeetive As to the high incidence of arteriovenous fistula(AVF) stenosis,surgical operation will result in the exhaustion of vascular resources in patients,while percutaneous transluminal angioplasty(PTA) can maintain vascular resources for ostomy.However,there is still no clear definition between the choices of PTA and surgical resection.The aim of this study was to compare the efficacy of PTA and surgical resection followed by reconstruction for the treatment of arteriovenous fistula stenosis in order to find appropriate treatment.Methods Retrospective analysis had been done on 46 hemodialysis patients with arteriovenous fistula stenosis in Nanjing BenQ hospital from January 2015 to March 2017,which included 22 cases treated with PTA (PTA group) and 24 cases treated with surgical operation (operation group).Comparison was made in general clinical situation,patency rate at six months after surgery,over patency time and adverse reactions to surgery between the two groups.Results The number of stenoses in PTA group was bigger than that in operation group and the difference was of statistic significance (2.78±1.43 vs 1.67±0.71,P<0.05).There was no significant difference in patency rate between the two groups (P =0.828).There were 57 venous stenoses in PTA group,among which 12 stenoses were anastomotic (21.05%) with 79.3% average stenosis degree and 43 stenoses were at venous outflow tract of fistula (75.44%) with 84.26 average stenosis degree.In PTA group,3 patients had hematoma brachial puncture position and recovered by self-absorption without special treatment.In operation group,1 patient had mild blood oozing and recovered after treatment;4 patients recovered gradually from mild swelling on the back of the hand of the operation side.No difference was found in adverse reactions between two groups (P>0.05).Conclusion PTA treatment is preferred for multiple stenoses(n ≥ 3),which ensures better preservation of vascular resources at a comparable patency rate.
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<p><b>OBJECTIVE</b>To explore the effect of clinical application of stand-alone MC+PEEK cage in anterior cervical fusion.</p><p><b>METHODS</b>From January 2011 to January 2014,50 patients were treated with the MC+PEEK cage filled with autogenous cancellous illic-bone graft after anterior cervical discectomy. There were 22 patients with cervical spondylosis,26 patients with traumatic cervical disc herniation, 2 patients with cervical instability in these patients. There were 32 males and 18 females, aged from 30 to 79 years old with an average of 53.30 years old. There were 32 patients with single segment, 15 patients with double segments and 3 patients with three segments. Cervical AP and lateral and the flexion-extension X-rays were regularly taken in order to assess the cervical physiological curvature, the graft fusion and internal fixation related complications. Nerve function, clinical effect and bone fusion were respectively evaluated according to Japan Orthopedic Association (JOA), Otani grade and Suk method.</p><p><b>RESULTS</b>All patients were followed up from 6 to 36 months with an average of 20 months. No correlated surgical complications were found and all patients obtained bony fusion with an average time of 4.30 months. JOA score had significantly improvement after surgery (P < 0.05). The JOA score was 10.60 ± 3.00 before surgery and 16.10 ± 2.20, 16.40 ± 2.35 at one week and six months after surgery respectively. According to Otani grade,40 cases got excellent results, 9 good, 1 fair. No significant dysphagia and internal fixation related complications such as displacement of cages were found during the follow-up period.</p><p><b>CONCLUSION</b>Using this cage in anterior cervical fusion can obtain satisfactory clinical effect with less operation injury and reduce the complications. It is a better fusion method in anterior cervical fusion.</p>