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[Prevalence of Echinococcus infections in wild carnivores based on copro - DNA tests in Serthar County of Sichuan Province]. ZHONGGUO XUE XI CHONG BING FANG ZHI ZA ZHI = CHINESE JOURNAL OF SCHISTOSOMIASIS CONTROL 2023; 35:492-496. [PMID: 38148538 DOI: 10.16250/j.32.1374.2023063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
OBJECTIVE To investigate the prevalence of Echinococcus infections in wild carnivores in Serthar County, Sichuan Province, so as to provide insights into echinococcosis control in local areas. METHODS Stool samples were collected from wild carnivores in Serthar County, Sichuan Province in May 2021, and the host sources of stool samples and Echinococcus infections were identified using PCR assays. The prevalence of E. multilocularis, E. granulosus and E. shiquicus infections was estimated in different hosts. RESULTS A total of 583 stool samples were collected from wild carnivores, including 147 stool samples from fox, 154 from wolf, 227 from wild dogs and 11 from lynx. The overall prevalence of E. multilocularis, E. granulosus and E. shiquicus infections was 5.68%, 0.19% and 14.20% in canine stool samples, and no E. granulosus infection was detected in fox stool samples, while the prevalence of E. multilocularis and E. shiquicus infections was 0.68% and 47.62% in fox stool samples (χ2 = 88.41, P < 0.001). No E. granulosus or E. shiquicus infection was detected in wolf stool samples, and the prevalence of E. multilocularis infection was 10.39% in wolf stool samples. The prevalence of E. multilocularis, E. granulosus and E. shiquicus infections was 5.73%, 0.44% and 2.20% in canine stool samples (χ2 = 12.13, P < 0.01). In addition, the prevalence of E. multilocularis infections was significantly higher in wolf stool samples than in canine and fox stool samples (χ2 = 13.23, P < 0.01), and the prevalence of E. shiquicus infections was significantly higher in fox stool samples than in canine and wolf stool samples (χ2 = 187.01, P < 0.001). No Echinococcus infection was identified in 11 lynx stool samples. CONCLUSIONS The prevalence of Echinococcus infections is high in wild canines in Serthar County, Sichuan Province. Wolf, wild dog and fox all participate in the wild life cycle of E. multilocularis in Serthar County, and wolf and wild dogs may play a more important role.
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[Predictive value of the triglyceride-glucose index on atrial fibrillation recurrence after valvular surgery with concurrent Cox-maze Ⅳ ablation]. ZHONGHUA YI XUE ZA ZHI 2023; 103:1673-1678. [PMID: 37302857 DOI: 10.3760/cma.j.cn112137-20230216-00219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Objective: To investigate the predictive value of preoperative triglyceride-glucose (TyG) index on atrial fibrillation recurrence after valvular surgery with concurrent Cox-maze Ⅳ ablation. Methods: The data of the patients who underwent valvular surgery with concurrent Cox-maze Ⅳ ablation from June 2017 to May 2022 in the Department of Cardiac Surgery, Beijing Anzhen Hospital were retrospectively collected, and the patients were divided into the recurrence group and non-recurrence group. Baseline clinical data and results of laboratory tests were collected and TyG index was calculated. The univariate and multivariate Cox proportional regression analysis were used to explore the risk factors of atrial fibrillation recurrence after Cox-maze Ⅳ ablation. The value of TyG index in predicting atrial fibrillation recurrence was obtained by plotting receiver operating characteristic (ROC) curve. Results: A total of 424 patients were in the final analysis, including 300 males and 124 females, with an average age of (58.2±13.4) years. The median follow-up time was 32.7 months (17.3-49.6 months). There were 117 and 307 patients in the recurrence and non-recurrence groups, respectively. Compared with the non-recurrence group, the TyG index in the recurrence group was higher (9.21±0.38 vs 8.34±0.72, P=0.011). The multivariate Cox regression analysis showed that TyG index (HR=2.021, 95%CI: 1.374-3.245, P<0.001), C-reactive protein level (HR=1.127, 95%CI: 1.007-1.535, P=0.026) and mitral stenosis (HR=1.038, 95%CI: 1.004-1.483, P<0.001) were risk factors for atrial fibrillation recurrence after Cox-maze Ⅳ ablation. In addition, TyG index was a predictor of atrial fibrillation recurrence according to ROC curve analysis [area under the curve (AUC)=0.847, 95%CI: 0.796-0.871, P<0.001]. Conclusion: The TyG index is an effective indicator to predict the recurrence of atrial fibrillation after valvular surgery with concurrent Cox-maze Ⅳ ablation.
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Relationship between in feed drugs, antibiotics and organic enrichment in marine sediments at Canadian Atlantic salmon aquaculture sites. MARINE POLLUTION BULLETIN 2023; 188:114654. [PMID: 36736258 DOI: 10.1016/j.marpolbul.2023.114654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/16/2023] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
The presence of in-feed anti-sea lice drugs and their relationship with organic enrichment is poorly understood in sediment surrounding salmon farms. Using data from an aquaculture monitoring program (2018-2020), we describe this relationship at ten sites in four Canadian provinces. Three anti-sea lice pesticides (lufenuron, teflubenzuron, emamectin benzoate and metabolite desmethyl emamectin benzoate), and one antibiotic (oxytetracycline) were detected. Concentrations were often below limits of quantification. Values are also lower than those reported in other aquaculture salmon-producing countries. Highest concentrations, along with organic enrichment, were observed ~200 m of cages with lower concentrations detected up to 1.5 km away. Most samples had at least two drugs present: 75.2 % (British Columbia), 91.4 % (Newfoundland), and 54.8 % (New Brunswick/Nova Scotia) highlighting the potential for cumulative effects. Emamectin benzoate and oxytetracycline were detected four and three years respectively after last known treatments, demonstrating the need for research on overall persistence of compounds.
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Microbial processing of autochthonous organic matter controls the biodegradation of 17α-ethinylestradiol in lake sediments under anoxic conditions. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 296:118760. [PMID: 34971738 DOI: 10.1016/j.envpol.2021.118760] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 12/02/2021] [Accepted: 12/26/2021] [Indexed: 06/14/2023]
Abstract
The decay of algal biomass and aquatic plants in freshwater lakes leads to the overproduction of autochthonous organic matter (OM) and the exhaustion of dissolved oxygen, impacting the microbial community and subsequent biodegradation of emerging contaminants in sediment. This study explored how the microbial processing of aquatic plant- and algal-derived OM (POM and AOM) mediates 17α-ethinylestradiol (EE2) biodegradation in the anoxic sediments of Lake Taihu in China. In four months of microcosm incubations, the increased concentrations of protein-like substances in AOM and POM exhibited temporary activation on microbial metabolic enzyme activity (fluorescein diacetate hydrolase and dehydrogenase) and significantly promoted the carbon mineralization with iron reduction (P < 0.001). These in turn increased the EE2 biodegradation efficiency to 77-90 ng g-1 in the anoxic sediment. However, a higher EE2 biodegradation of 109 ng g-1 was achieved with the humic acid augmentation containing more quinone-like compounds, showing a weaker substrate-priming effect but accelerated redox cycling of iron and organic substrates in the later period of incubation. The microbial analysis further revealed that the quinone-like compounds in OM were more closely associated with microbial electron transfer and strengthened their interspecies syntrophic cooperation favorable to contaminant biodegradation, even though the connective members exposed to protein-like components upregulated more functional genes related to organic carbon and xenobiotics metabolism and biodegradation. Our findings will help predict the fate of estrogens in various sedimentary environments under increasing eutrophication and further climate change scenarios.
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Standard practice of presacral exposure during transvaginal natural orifice transluminal endoscopic surgery for sacrocolpopexy. BJOG 2021; 129:1004-1007. [PMID: 34839566 DOI: 10.1111/1471-0528.17030] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/16/2021] [Indexed: 02/03/2023]
Abstract
We describe the standard practice of presacral exposure during transvaginal natural orifice transluminal endoscopic surgery (vNOTES) for sacrocolpopexy in women with uterine prolapse. In this video, we demonstrate the key techniques: identifying the right hypogastric nerve (rHN) before opening the pelvic peritoneum; removing the fat and loose connective tissue along the rHN to expose the presacral fascia; incising the presacral fascia to reach the presacral space to expose the middle sacral vasculature and the anterior longitudinal ligament (ALL) of the first sacral vertebra (S1) below the promontory; attaching the mesh to the ALL to avoid vessel injury; and completing the peritonealisation.
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Hierarchical MnV 2O 4 double-layer hollow sandwich nanosheets confined by N-doped carbon layer as anode for high performance lithium-ion batteries. J Colloid Interface Sci 2021; 607:538-545. [PMID: 34520901 DOI: 10.1016/j.jcis.2021.09.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 09/02/2021] [Accepted: 09/03/2021] [Indexed: 12/17/2022]
Abstract
Binary transition metal oxides, especially vanadate metal oxides, are highly desirable for lithium-ion batteries (LIBs) anode materials due to their low-budget and high theoretical lithium storage capacity. However, low conductivity and poor cycle stability caused by volume changes during charge and discharge limit their grid-scale applications. Herein, a novel spinel MnV2O4 double-layer hollow sandwich nanosheets enclosed in N-doped porous carbon layer (MnV2O4/NC) was efficiently synthesized in 5 min by microwave-assisted and in-situ pyrolysis the coated polydopamine. MnV2O4/NC shows the superior performance as anode for LIBs with a specific capacities of 760 mA h g-1 at 1000 mA g-1 and outstanding of cycling stability with a specific capacities of 525.5 mA h g-1 after 1000 cycles even at 5000 mA g-1, respectively, which due to its unique double-layer hollow sandwich microstructure, mixed lithium storage mechanism and in-situ coating of nitrogen-doped carbon layer.
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[Short-term effect of thoracoscopy-assisted mitral valvuloplasty in patients with mitral valve prolapse]. ZHONGHUA YI XUE ZA ZHI 2021; 101:2728-2730. [PMID: 34510881 DOI: 10.3760/cma.j.cn112137-20210616-01364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The data of 56 patients with mitral valve prolapse undergoing thoracoscopy-assisted mitral valvuloplasty in the Department of Cardiac Surgery, Beijing Anzhen Hospital, Capital Medical University from May 2019 to December 2020 were retrospectively analyzed. Among them, 31 cases were male and 25 cases were female, with a mean age of (45±14) years. There was no death during perioperative period. No patient was converted to median sternotomy. The duration of cardiopulmonary bypass (CPB), aortic cross-clamp and operation was (207±58) min, (134±59) min, and (374±90) min, respectively. The intraoperative blood loss was (690±268) ml, and 5 (8.9%) patients required blood transfusion. Postoperative mechanical ventilation duration was (19±9) h, and 24-hour pleural fluid drainage volume was (460±247) ml. The length of intensive care unit (ICU) and hospital stay was (25±6) h and (13±4) d, respectively. Therefore, thoracoscopy-assisted mitral valvuloplasty has the advantages of reliable curative effect, less trauma, less complications, fast recovery and satisfactory perioperative outcomes.
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Assessing trace-elements as indicators of marine finfish aquaculture across three distinct Canadian coastal regions. MARINE POLLUTION BULLETIN 2021; 169:112557. [PMID: 34089964 DOI: 10.1016/j.marpolbul.2021.112557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 05/21/2021] [Accepted: 05/22/2021] [Indexed: 06/12/2023]
Abstract
Several trace-elements have been identified as indicators of finfish aquaculture organic enrichment. In this study, sediment sampling at finfish farms was completed as part of an Aquaculture Monitoring Program in three distinct Canadian regions. Despite diverse datasets, multivariate analyses show a consistent clustering of known direct (Cu and Zn) and indirect (Cd, Mo and U) tracers of aquaculture activities with sediment organic matter (OM) and/or total dissolved sulfides concentrations. OM content was also a predictor of Cu, Zn, Mo and U concentrations according to decision tree analyses. Distance from cages did not emerge as a strong driver of differences among sampling points; however, a tendency towards negative associations is clear especially for Zn. Enriched stations as determined after geochemical normalization were mostly localized within 150 m of net-pens. Selected trace-elements (in particular Zn) can be useful indicators of aquaculture organic enrichment in different ecosystems and valuable tools for monitoring programs.
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[Short-term and long-term outcomes of tricuspid valve replacement in patients with left ventricular dysfunction]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 2021; 59:298-302. [PMID: 33706449 DOI: 10.3760/cma.j.cn112139-20200302-00176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To examine the short-term and long-term outcomes of tricuspid valve replacement (TVR) in patients with left ventricular dysfunction. Methods: The clinical data of 24 patients with left ventricular dysfunction who received TVR at Department of Cardiovascular Surgery, Beijing Anzhen Hospital, Capital Medical University from November 1993 to August 2018 were consecutively enrolled. There were 14 males and 10 females,aged (41.9±13.2) years old (range: 19 to 66 years old). The preoperative ejection fraction was (42.9±6.4)% (range: 21% to 49%), while less than 35% in 3 patients. The scores of Charlson comorbidity index were as follows: 5 patients for 0, 6 patients for 1, 7 patients for 2, 1 patient for 3 and 5 patients for 4. The European system for cardiac operative risk evaluation (EuroSCORE) Ⅰ was 3.6±2.1 (range: 1 to 9). The EuroSCORE Ⅱ was (4.91±2.40)% (range: 1.58% to 11.60%). The model for end-staged liver disease score was 1.8±1.2 (range: 0.2 to 7.1). The simplified model for end-staged liver disease score was 5.6±2.5 (range: 1.5 to 13.4). Follow-up was conducted by clinic. The long-term survival rate was calculated by Kaplan-Meier survival curve. Results: In-hospital mortality was 16.7% (4/24), including 1 patient for multiple organ failure and 3 patients for low cardiac output syndrome (LCOS). One patient needed continuous renal replacement therapy and 6 patients suffered from LCOS. The follow-up time was 1 to 19 years, with a median of 8 years. During the follow-up period, 4 patients died, including 2 deaths for cardiogenic cause, 1 death for anticoagulant complications, and 1 death for lung cancer. The 1, 5 and 10-year survival rates were 76.2%, 71.4% and 64.9%, respectively. Conclusion: The short-term and long-term clinical outcomes of TVR in patients with left ventricular dysfunction are acceptable, but the mortality and morbidity are still high.
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Genipin improves reproductive health problems caused by circadian disruption in male mice. Reprod Biol Endocrinol 2020; 18:122. [PMID: 33308222 PMCID: PMC7731552 DOI: 10.1186/s12958-020-00679-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 12/06/2020] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Circadian rhythm disruption impacts a wide range of physiological processes, including fertility. However, the effect of circadian disruption on male spermatogenesis and fertility, and treatments for these effects have been largely unexplored at the molecular level. METHODS In this study, we examined the effects of genipin on improving the reproductive health problems caused by circadian disruption. Three groups of animals were fed under different conditions: control group (normal T cycle with saline), group of shortened T cycles (Light/Dark = 4 hours/4 hours) with saline, and a group of shortened T cycles with genipin by oral gavage. The male fertility was evaluated by fertility study and pups parameters analysis after successful sexual behavior and mating with female mice. We sacrificed the treated animals after 5 or 10 weeks and collected the testis, sperm and serum for histological analysis, sperm motility assay, and serum hormone detection, respectively. Furthermore, the effect of genipin was assessed by detection of progesterone secretion and steroidogenic key proteins expression, including StAR and CYP11A1, in mouse Leydig tumor MLTC-1 cells. RESULTS Male mice exposed to shortened light-dark cycles, much shorter than 24 hours, had reduced fertility with decreased sperm concentrations and sperm motility. Male mice under circadian disruption have reduced testis size and abnormal morphology, leading to lower fertility rates, reduced litter size and pup body weight. Treatment with exogenous genipin, a natural plant-derived compound, alleviated circadian disruption-induced damage to fertility and spermatogenesis and normalized testosterone, dihydrotestosterone (DHT), and androstenedione (ASD) levels in the male mice. The levels of key proteins involved in steroidogenesis, StAR and CYP11A1, were reduced in mouse testes after the circadian disruption, but genipin treatment restored the reduction. The mRNA expression of SRD5A1, which encodes an androgen synthesis enzyme, was also upregulated by genipin treatment. Furthermore, genipin treatment showed a positive effect on steroidogenesis in MLTC-1 cells, resulting in an increase in hormone secretion and the upregulation of StAR and CYP11A1. CONCLUSIONS Our results showed an association between circadian disruption and reproductive health problems in male mice and indicated that treatments with genipin have positive effects on the reproductive health of male mice with circadian rhythm disorders.
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Impairment of Pol β-related DNA base-excision repair leads to ovarian aging in mice. Aging (Albany NY) 2020; 12:25207-25228. [PMID: 33223510 PMCID: PMC7803579 DOI: 10.18632/aging.104123] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 08/31/2020] [Indexed: 01/11/2023]
Abstract
The mechanism underlying the association between age and depletion of the human ovarian follicle reserves remains uncertain. Many identified that impaired DNA polymerase β (Pol β)-mediated DNA base-excision repair (BER) drives to mouse oocyte aging. With aging, DNA lesions accumulate in primordial follicles. However, the expression of most DNA BER genes, including APE1, OGG1, XRCC1, Ligase I, Ligase α, PCNA and FEN1, remains unchanged during aging in mouse oocytes. Also, the reproductive capacity of Pol β+/- heterozygote mice was impaired, and the primordial follicle counts were lower than that of wild type (wt) mice. The DNA lesions of heterozygous mice increased. Moreover, the Pol β knockdown leads to increased DNA damage in oocytes and decreased survival rate of oocytes. Oocytes over-expressing Pol β showed that the vitality of senescent cells enhances significantly. Furthermore, serum concentrations of anti-Müllerian hormone (AMH) indicated that the ovarian reserves of young mice with Pol β germline mutations were lower than those in wt. These data show that Pol β-related DNA BER efficiency is a major factor governing oocyte aging in mice.
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[Impacts of incomplete revascularization following off-pump coronary artery bypass grafting on perioperative outcomes in octogenarians]. ZHONGHUA YI XUE ZA ZHI 2020; 100:3152-3156. [PMID: 33142397 DOI: 10.3760/cma.j.cn112137-20200406-01091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To assess the impacts of incomplete revascularization following off-pump coronary artery bypass grafting (OPCABG) on perioperative outcomes in octogenarians. Methods: A retrospective analysis of 242 octogenarian patients with coronary artery disease (CAD) hospitalized in Beijing Anzhen Hospital from June 2008 to July 2016 was performed. These patients were divided into the complete revascularization group (n=181) and the incomplete revascularization group (n=61) depending on whether they underwent complete revascularization. The impacts of incomplete revascularization following OPCABG on perioperative outcomes were summarized and compared between the two groups. Results: Among the 242 patients over 80 years who received OPCABG, there were 198 males (81.8%). Compared to the complete revascularization group, those in the incomplete revascularization group were older [(83.2±1.5) vs (81.5±1.1) years old, P=0.03], with more carotid stenosis (44.3% vs 25.4%, P=0.01), more involved in the diagonal and circumflex branch of coronary artery (49.2% vs 17.1%, P=0.01; 83.6% vs 70.2%, P=0.03), shorter operative time [(4.1±1.7) h vs (4.7±1.2) h, P=0.03), longer preoperative [(7.1±2.3) d vs (5.2±2.0) d, P=0.01] and total hospitalization time [(16.3±6.8) d vs (12.5±4.2) d, P=0.01], however, the differences of the in-hospital mortality and incidence of other perioperative complications were not statistically significant between the two groups (all P>0.05). Conclusion: Compared with complete revascularization, incomplete revascularization following OPCABG in CAD patients over 80 years old does not increase the perioperative mortality and the incidence of other complications, and it reduces the operative time. However, it increases the time of preoperative and total hospital stay.
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Learning Curves and Influencing Factors of Laparoscopic Single-Site Myomectomy (LESS-M). J Minim Invasive Gynecol 2020. [DOI: 10.1016/j.jmig.2020.08.388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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[Perioperative outcomes in off-pump coronary artery bypass grafting patients older than 80 years with left ventricular dysfunction or left ventricular normal: a comparative study based on propensity score matching]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 2020; 58:882-885. [PMID: 33120453 DOI: 10.3760/cma.j.cn112139-20200211-00079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To examine the outcome of off-pump coronary artery bypass (OPCAB) in elderly patients with left ventricular dysfunction. Methods: From June 2008 to July 2016, 252 patients aged over 80 years underwent isolated OPCAB at Department of Cardiovascular Surgery, Beijing Anzhen Hospital, Capital Medical University, these patients' data were collected. The left ventricular dysfunction group (ejection fraction (EF): 35% to 50%) was comprised of 31 patients aged (82.0±2.1) years (range: 80 to 88 years), including 25 males and 6 females. Through matching one-to-one on propensity scores, 31 patients (EF>50%) were included into the left ventricular normal group. Among them, there were 25 males and 6 females, aged (81.9±1.9) years (range: 80 to 89 years). Postoperative mortality and complications between the matched groups were compared using the t test, Wilcoxon rank-sum test, χ(2) test or Fisher exact test. Results: Between the dysfunction group and normal group, the preoperative serum creatinine was 144.6(66.0) μmol/L vs. 94.9(43.2) μmol/L (M(Q(R)), Z=3.177, P=0.033), respectively, while the pre-discharge serum creatinine was 147.0(59.0) μmol/L vs. 92.0(24.0) μmol/L (Z=-2.685, P=0.007), respectively. In dysfunction group, the perioperative intra-aortic balloon counterpulsation (IABP) utilization rate was higher (25.8%(8/31) vs. 3.2%(1/31), P=0.026), the total hospitalization day was longer (17(15) days vs. 14(8)days, Z=2.054, P=0.012), the preoperative hospitalization day was longer too (7(7) days vs. 5(4) days, Z=-2.457, P=0.014). However, there was no significant difference in the incidence of postoperative mortality (9.7%(3/31) vs. 3.2%(1/31), P=0.612) and other prognostic indicators between the two groups. Conclusions: The elderly patients, with light and moderate left ventricular insufficiency, are characterized by the abnormal increase in renal function and the rise of IABP utilization due to hemodynamic disorder in OPCAB perioperative period. Preoperative treatment for cardiac insufficiency may be the cause of prolonged preoperative and total hospital stay. However, there is no significant difference in the postoperative mortality and other complications compared with the patients of normal left ventricular function.
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Arginine methylation of APE1 promotes its mitochondrial translocation to protect cells from oxidative damage. Free Radic Biol Med 2020; 158:60-73. [PMID: 32679368 PMCID: PMC8195256 DOI: 10.1016/j.freeradbiomed.2020.06.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 06/09/2020] [Accepted: 06/17/2020] [Indexed: 02/07/2023]
Abstract
Apurinic/apyrimidinic endonuclease 1 (APE1) is an essential multifunctional protein in mammals that plays critical roles in DNA repair and redox signaling within the cell. Impaired APE1 function or dysregulation is associated with disease susceptibility and poor cancer prognosis. Orchestrated regulatory mechanisms are crucial to ensure its function in a specific subcellular location at specific time. Here, we report arginine methylation as a post-translational modification (PTM) that regulates APE1 translocation to mitochondria in HeLa and HEK-293 cells. Protein arginine methyl-transferase 1 (PRMT1) was shown to methylate APE1 in vitro. Site-directed mutagenesis identified R301 as the major methylation site. We confirmed that APE1 is methylated in cells and that the R301K mutation significantly reduces its methylation. Baseline mitochondrial APE1 levels were low under standard culture conditions, but they could be induced by oxidative agents. Methylation-deficient APE1 showed reduced mitochondrial translocation. Methylation affected the interaction of APE1 with Tom20, translocase of the outer mitochondrial membrane. Methylation-deficient APE1 resulted in increased mitochondrial DNA damage and increased cytochrome c release after stimuli. These data suggest that methylation of APE1 promotes its mitochondrial translocation and protects cells from oxidative damage. This work describes a novel PTM regulation model of APE1 subcellular distribution through arginine methylation.
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[A comparative analysis of quality of life between surgical and interventional treatment in patients with complex coronary heart disease]. ZHONGHUA YI XUE ZA ZHI 2020; 100:125-129. [PMID: 31937052 DOI: 10.3760/cma.j.issn.0376-2491.2020.02.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the improvement of quality of life in the patients with left main coronary artery disease and multi-vessel disease between off-pump coronary artery bypass grafting (OPCABG) and percutaneous coronary intervention (PCI) within one year after revascularization. Methods: This study was a prospective study. Between January and July 2018, 840 patients with complex coronary heart disease accepted revascularization therapy, 420 of whom underwent OPCABG and 420 for PCI, with a mean age of 61 years and a male rate of 74% (622/840). European Quality of Life-5 Dimensions (EQ-5D) and Seattle Angina Questionnaire (SAQ) were employed to assess the quality of life and health status of patients. Inverse probability weighting (IPW) was used to adjust treatment selection bias. Results: All-cause mortality (3.6% vs 1.3%, P=0.045), major adverse cardiac and cerebrovascular events (MACCE) (11.3% vs 4.1%, P<0.001) and target lesion revascularization (8.3% vs 1.2%, P<0.001) were higher in PCI group than those in OPCABG group. EQ-5D scores in PCI group were significantly higher than those in OPCABG group at 1 month after operation (P<0.001), but there was no significant difference between the two groups at 12 months after operation (P=0.210). In SAQ scale, the frequency score of angina pectoris in OPCABG group was higher than that in PCI group in 1 month, 6 months and 12 months after operation (all P<0.05). The physical activity limitation score in PCI group was significantly higher than that in OPCABG group at one month after operation (P<0.01). There was no significant difference between OPCABG group and PCI group in terms of stable state of angina pectoris, satisfaction of treatment and the knowledge of disease. Conclusions: In the short term, the quality of life of patients with left main coronary artery disease and multi-vessel disease treated with OPCABG is better than PCI. However, the improvement of quality of life in the medium and long term still needs to be identified in future follow-up study.
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1711 Cesarean Scar Defect: Risk Factors and Comparison of Evaluation Efficacy between Transvaginal Sonography and Magnetic Resonance Imaging. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Laparoendoscopic Single-Site Surgery Versus Conventional Laparoscopy for Cervicovaginal Reconstruction of Congenital Vaginal and Cervical Aplasia. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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19
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1748 Fertility and Surgical Outcome in Postoperative Deep Infiltrating Endometriosis. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Exosomal Long Noncoding RNA-NONHAT076754 Faciliates Endometriosis Invasion and Predicts Endometriosis Recurrence. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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21
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Two-way crosstalk between BER and c-NHEJ repair pathway is mediated by Pol-β and Ku70. FASEB J 2019; 33:11668-11681. [PMID: 31348687 PMCID: PMC6902736 DOI: 10.1096/fj.201900308r] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Accepted: 07/01/2019] [Indexed: 11/11/2022]
Abstract
Multiple DNA repair pathways may be involved in the removal of the same DNA lesion caused by endogenous or exogenous agents. Although distinct DNA repair machinery fulfill overlapping roles in the repair of DNA lesions, the mechanisms coordinating different pathways have not been investigated in detail. Here, we show that Ku70, a core protein of nonhomologous end-joining (NHEJ) repair pathway, can directly interact with DNA polymerase-β (Pol-β), a central player in the DNA base excision repair (BER), and this physical complex not only promotes the polymerase activity of Pol-β and BER efficiency but also enhances the classic NHEJ repair. Moreover, we find that DNA damages caused by methyl methanesulfonate (MMS) or etoposide promote the formation of Ku70-Pol-β complexes at the repair foci. Furthermore, suppression of endogenous Ku70 expression by small interfering RNA reduces BER efficiency and leads to higher sensitivity to MMS and accumulation of the DNA strand breaks. Similarly, Pol-β knockdown impairs total-NHEJ capacity but only has a slight influence on alternative NHEJ. These results suggest that Pol-β and Ku70 coordinate 2-way crosstalk between the BER and NHEJ pathways.-Xia, W., Ci, S., Li, M., Wang, M., Dianov, G. L., Ma, Z., Li, L., Hua, K., Alagamuthu, K. K., Qing, L., Luo, L., Edick, A. M., Liu, L., Hu, Z., He, L., Pan, F., Guo, Z. Two-way crosstalk between BER and c-NHEJ repair pathway is mediated by Pol-β and Ku70.
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22
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1473 Laparoscopic Sacrocolpopexy Plus Colporrhaphy with an Sis Graft Versus Total Pelvic Floor Reconstruction for Advanced Prolapse: A Retrospective Cohort Study. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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23
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1155 Robotic Laparoendoscopic Single-Site Radical Hysterectomy and Pelvic Lymphadenectomy with Conventional Surgical Instruments in Cervical Cancer. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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1489 Exosomes Derived from Human Umbilical Cord Mesenchymal Stem Cells Accelerate Growth of VK2 Vaginal Epithelial Cells through Micrornas In Vitro. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Single-Site Laparoscopy Combined with Hysteroscopy for Large Cesarean Section Diverticulum Arising from Atypical Placental Site Nodule. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Triage by Methylation Marker Analysis Versus Colposcopy Biopsy in Women who test HPV-Positive or Abnormal LBC Results on Cervical Samples to Triage Cervical Cancer and HSIL for Further Treatment. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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27
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Interior Supported Hierarchical TiO
2
@Co
3
O
4
Derived from MOF‐on‐MOF Architecture with Enhanced Electrochemical Properties for Lithium Storage. ChemElectroChem 2019. [DOI: 10.1002/celc.201900915] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Circulating Exosomal ANRIL is a Novel Prognostic Marker for Epithelial Ovarian Cancer. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Combined Laparoscopic and Vaginal Cervicovaginal Reconstruction Using Acellular Porcine Sis Graft in a Patient with Mrkh Syndrome (u5ac4v4). J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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30
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Bladder-Sacral Plexus Electric Stimulus Improves Bladder and Rectal Function after Laparoscopic Radical Hysterectomy. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Analysis of the Reproductive Outcomes and the Size of the Unicornuate Uterus Measured by Magnetic Resonance Imaging and Their Relationship. J Minim Invasive Gynecol 2018. [DOI: 10.1016/j.jmig.2018.09.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Modified Model of Whole Ovary Transplantation in Rats. Transplant Proc 2018; 50:3881-3886. [PMID: 30577281 DOI: 10.1016/j.transproceed.2018.06.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Revised: 06/12/2018] [Accepted: 06/27/2018] [Indexed: 11/15/2022]
Abstract
OBJECTIVE A rat model of right whole ovary transplantation is difficult to establish because of an unfit location or absence of the right ovarian artery. The purpose of this study is to develop a rat model of left whole ovary transplantation. METHODS Two methods of whole ovary transplantation were performed. In Group A (n = 40), the rats underwent right whole ovary grafting via conventional orthotopic allotransplant, with donor abdominal aorta and inferior vena cava end-to-side anastomoses to the recipient abdominal aorta and inferior vena cava. In Group B (n = 40), the rats underwent left whole ovary graft via orthotopic allotransplant, with donor abdominal aorta and left renal vein end-to-side anastomoses to the recipient abdominal aorta and inferior vena cava. Bilateral native ovariectomy in the recipient was performed immediately in both groups. The operative times, recipient survival rates, and transplanted ovarian function were measured. RESULTS There was no significant difference in the success rates of transplant between the 2 groups, with 92.5% and 90% success, respectively. All the living recipients recovered ovarian function. However, the operative time for the donor, the vein anastomosis time, and the cold ischemia time decreased significantly in Group B (P < .05). CONCLUSION The modified method of left whole ovary transplantation is reliable and easy to perform, which could significantly shorten the times of graft harvest and cold ischemia. The method is a good supplement and improvement of the conventional model of rat whole ovary transplantation.
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[Short-term clinical safety and efficacy of No-touch great saphenous vein harvesting technique for off-pump coronary artery bypass grafting]. ZHONGHUA YI XUE ZA ZHI 2018; 98:1601-1604. [PMID: 29886653 DOI: 10.3760/cma.j.issn.0376-2491.2018.20.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluated early clinical outcomes of saphenous vein grafts harvested with a No-touch technique in off-pump coronary artery bypass graft (OPCABG) surgery. Methods: A total of 124 patients with three-vessel disease undergoing OPCABG by No-touch technique between June and November 2017 in Beijing An Zhen Hospital were respectively reviewed. Results: The average age of patients was (60.7±10.3) years, and 80 cases (64.5%) were male, with the average body mass index (BMI)of (25.4±2.5) kg/m(2,) the mean preoperative left ventricular ejection fraction (LVEF) of (58.0±7.0%). The operative time was (4.0±0.4) hours, and 16 cases (12.9%) were harvested for whole vein grafts. The number of vein grafts and venous anastomoses was 144 and 284, respectively. There were 16 cases of single bridge NTSVG-LAD, 4 cases of single bridge NTSVG-D, 99 cases of sequential bridge NTSVG-OM-PDA, 5 cases of sequential bridge NTSVG-OM-PLV, 4 cases of sequential bridge NTSVG-OM-RCA, 16 cases of sequential bridge NTSVG-D-OM-PDA. The mean flow volume of No-touch vein grafts was (51.9±2.4) ml/min. There was no death case in hospital. Postoperative re-exploration for hemorrhage of anastomosis happened in 1 case (0.8%), which was caused by pericardial tamponade due to insufficiency of hemostasis in internal mammary bed. There were 1 case of bad wound healing of lower extremity incision (0.8%). A total of 124 cases were followed up after operation, and the follow-up rate was 100%. There was one all-cause death (0.8%) 27 days after the operation. Conclusion: The short-term clinical observation of the application of No-touch great saphenous vein harvesting technique for OPCABG is safe and effective.
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SB431542 inhibited cigarette smoke extract induced invasiveness of A549 cells via the TGF-β1/Smad2/MMP3 pathway. Oncol Lett 2018; 15:9681-9686. [PMID: 29963124 PMCID: PMC6020173 DOI: 10.3892/ol.2018.8556] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Accepted: 02/19/2018] [Indexed: 02/06/2023] Open
Abstract
Lung cancer has high morbidity and mortality rates. Smoking is involved in the pathogenesis of lung cancer, and tobacco smoke may increase tumor cell invasion and metastasis. The effects of cigarette smoke extract (CSE) on the carcinoma human alveolar basal epithelial A549 cell line were investigated. A549 cells were exposed to increasing concentrations of CSE for 12, 24 and 48 h, and the transforming growth factor-β1 (TGF-β1) signal pathway was inhibited by addition of SB431542, a TGF-β1 receptor antagonist. The proliferation of A549 cells was assayed by a Cell Counting kit-8, invasiveness was assayed using Transwell chambers, and TGF-β1, phosphorylated mothers against decapentaplegic homolog 2 (p-Smad2), and matrix metalloproteinase 3 (MMP3) levels was assessed by western blot analysis. The invasiveness of A549 cells and the expression of TGF-β1, pSmad2, and MMP-3 were significantly increased by CSE (P<0.05). The effects of CSE were abrogated by SB431542 (P<0.05). In conclusion, CSE increased the invasiveness of A549 cells and its effects were abrogated by SB431542 and the TGF-β1/Smad2/MMP-3 pathway may have been involved.
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Synthesis of Co2
V2
O7
Hollow Cylinders with Enhanced Lithium Storage Properties using H2
O2
as an Etching Agent. ChemElectroChem 2018. [DOI: 10.1002/celc.201701194] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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36
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Short-Term Influence of Melatonin on Rats Following Whole Ovarian Cryopreservation and Transplantation. J Minim Invasive Gynecol 2017. [DOI: 10.1016/j.jmig.2017.08.208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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37
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A Comparative Study of Sexual and Functional Outcomes of Vaginoplasty Through Three Methods. J Minim Invasive Gynecol 2017. [DOI: 10.1016/j.jmig.2017.08.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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38
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Evaluation and Management of Complications after Transvaginal Mesh Repair of Pelvic Organ Prolapse. J Minim Invasive Gynecol 2017. [DOI: 10.1016/j.jmig.2017.08.158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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39
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Prognostic Analysis of Uterine Cervical Cancer of Positive or Negative Vaginal Resection Margin: Importance of Intraoperative Frozen Pathology. J Minim Invasive Gynecol 2017. [DOI: 10.1016/j.jmig.2017.08.546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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40
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A Comparative Study of Video Endoscopic Inguinal Lymphadenectomy and Conventional Open Inguinal Lymphadenectomy in Treating Vulvar Cancer. J Minim Invasive Gynecol 2017. [DOI: 10.1016/j.jmig.2017.08.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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41
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Successful Twin Pregnancy in a Patient with Hemi-Uterus Corrected by Laparoscopic Modified Straussman's Metroplasty. J Minim Invasive Gynecol 2017. [DOI: 10.1016/j.jmig.2017.08.335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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42
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Graphite Nanoplates Firmly Anchored with Well-dispersed Porous Zn3V2O8 Nanospheres: Rational Fabrication and Enhanced Lithium Storage Capability. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.07.112] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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43
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[Short-term clinical outcomes and risk factors associated with in-hospital mortality in patients undergoing off-pump coronary artery bypass grafting]. ZHONGHUA YI XUE ZA ZHI 2017; 97:1218-1221. [PMID: 28441848 DOI: 10.3760/cma.j.issn.0376-2491.2017.16.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore short-term clinical outcomes and risk factors associated with in-hospital mortality in patients undergoing off-pump coronary artery bypass grafting (OPCABG) and establish a prediction model for in-hospital mortality. Methods: The clinical data of patients undergoing OPCABG in Beijing Anzhen Hospital between January 2014 and January 2016 was retrospectively studied. Univariate analysis and logistic regression were applied to determine the potential risk factors, and then a prediction model for mortality was confirmed. The calibration and discrimination of the prediction model was finally tested. Results: A total of 2 546 patients who underwent OPCABG were recruited. In-hospital mortality of OPCABG was 0.7% (17 cases). Seven variables: female, age, left main disease >50%, low left ventricular ejection fraction (LVEF), acute myocardial infarction before surgery, operative status (selective or emergent), moderate concomitant mitral valve regurgitation were independently correlated with OPCABG mortality (all P<0.05). The result of Hosmer-Lemeshow test was χ(2)=5.912, P=0.676. The area under receiver-operating characteristic curve (ROC) was 0.881. Conclusions: OPCABG is safe and effective for myocardial revascularization in a short term. The following risk factors are associated with an increased operative mortality of OPCABG: male, age, left main disease >50%, low LVEF, acute myocardial infarction before surgery, operative status (selective or emergent), moderate concomitant mitral valve regurgitation. The prediction model established by above-mentioned potential risk factors was proven to perform well by statistical tests.
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Cervicovaginal Reconstruction in Patients with Congenital Malformation of Cervix Using Split Thickness Skin Graft or Acellular Porcine Small Intestinal Submucosa Graft: A Prospective, Comparative Single Center Study. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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45
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Superior to the Traditional Treatment, Individual Biofeedback Combined with Electrostimulation Fits Type II Pelvic Floor Muscle Injury Best and Contributes to Sexual Satisfaction. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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46
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Sexual and Functional Outcome of Sheares Vaginoplasty in 16 Patients with Mayer-Rokitansky-Küster-Hauser Syndrome. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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47
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Laparoscopic Repair of Cesarean Section Scar Diverticulum and the Surgical Outcome in 146 Patients. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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48
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Analysis of Predictive Factors for Recurrence of Deep Infiltrating Endometriosis: A 2-Year Prospective Study. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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49
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Laparoscopically Assisted Pelvic Adhesiolysis and Hysterectomy with Bilateral Salpingectomy in a Patient with Tuberculous Abdominal Cocoon: A Case Report. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abstract
Pancreatic cancers arise predominantly from ductal epithelial cells of the exocrine pancreas and are of the ductal adenocarcinoma histological subtype (PDAC). PDAC is an aggressive disease associated with a poor clinical prognosis, weakly effective therapeutic options, and a lack of early detection methods. Furthermore, the genetic and phenotypic heterogeneity of PDAC complicates efforts to identify universally efficacious therapies. PDACs commonly harbor activating mutations in the KRAS oncogene, which is a potent driver of tumor initiation and maintenance. Inactivating mutations in tumor suppressor genes such as CDKN2A/p16, TP53, and SMAD4 cooperate with KRAS mutations to cause aggressive PDAC tumor growth. PDAC can be classified into 3-4 molecular subtypes by global gene expression profiling. These subtypes can be distinguished by distinct molecular and phenotypic characteristics. This chapter will provide an overview of the current knowledge of PDAC pathogenesis at the genetic and molecular level as well as novel therapeutic opportunities to treat this highly aggressive disease.
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