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Lin W, Li T, Xu Z, Chen P, Zheng Q, Hong YK, Liu WJ. Association of socioeconomic status and overactive bladder in US adults: a cross-sectional analysis of nationally representative data. Front Public Health 2024; 12:1345866. [PMID: 38596511 PMCID: PMC11003547 DOI: 10.3389/fpubh.2024.1345866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 02/29/2024] [Indexed: 04/11/2024] Open
Abstract
Background Socioeconomic status inequality is an important variable in the emergence of urological diseases in humans. This study set out to investigate the association between the prevalence of overactive bladder (OAB) and the poverty income ratio (PIR) that served as a more influential indicator of socioeconomic status compared to education and occupation. Method Data from the National Health and Nutrition Examination Survey (NHANES) conducted from 2007 to 2020 were used in this cross-sectional study. The association between the PIR and OAB was examined using weighted multivariate logistic regression and weighted restricted cubic splines (RCS). Additionally, interaction analysis was used for investigation to the connections between PIR and OAB in various covariate groups in order to confirm the stability of the results. Results We observed a noteworthy inverse association between PIR and OAB after adjusting for potential confounding variables (OR = 0.87, 95% CI, 0.84-0.90, p < 0.0001). PIR was transformed into categorical variables, and the association held steady after that (1.0 < PIR <4.0 vs. PIR ≤ 1.0, OR = 0.70, 95% CI =0.63-0.77, p < 0.0001; PIR ≥ 4.0 vs. PIR ≤ 1.0, OR = 0.56, 95% CI =0.48-0.65, p < 0.0001). Additionally, RCS analysis showed that PIR and OAB had a negative nonlinear response relationship. Subgroup analyses showed that the inverse association between PIR and prevalence of OAB was stronger in obese than in nonobese individuals (P for interaction < 0.05). Conclusion In our study, we observed a significant negative association between the PIR and the prevalence of OAB. In the future, PIR could be used as a reference standard to develop strategies to prevent and treat OAB.
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Affiliation(s)
- Weilong Lin
- The First Affiliated Hospital of Shantou University Medical College, Medical College of Shantou University, Shantou, China
| | - Taibiao Li
- The First Affiliated Hospital of Shantou University Medical College, Medical College of Shantou University, Shantou, China
| | - Zhengyuan Xu
- The First Affiliated Hospital of Shantou University Medical College, Medical College of Shantou University, Shantou, China
| | - Peixin Chen
- The First Affiliated Hospital of Shantou University Medical College, Medical College of Shantou University, Shantou, China
| | - Qianqi Zheng
- The First Affiliated Hospital of Shantou University Medical College, Medical College of Shantou University, Shantou, China
| | - Ying-kai Hong
- The First Affiliated Hospital of Shantou University Medical College, Medical College of Shantou University, Shantou, China
| | - Wei-juan Liu
- Department of Medical Cosmetic Center, the First Affiliated Hospital of Shantou University Medical College, Medical College of Shantou University, Shantou, China
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Li Q, Zhang B, Liu W, Zou H. Strigolactones alleviate the toxicity of polystyrene nanoplastics (PS-NPs) in maize (Zea mays L.). Sci Total Environ 2024; 918:170626. [PMID: 38325482 DOI: 10.1016/j.scitotenv.2024.170626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 01/24/2024] [Accepted: 01/31/2024] [Indexed: 02/09/2024]
Abstract
Nanoplastics are widely used across various fields, yet their uptake can potentially exert adverse effects on plant growth and development, ultimately reducing yields. While there is growing awareness of the phytotoxicity caused by nanoplastics, our understanding of effective strategies to prevent nanoplastic accumulation in plants remains limited. This study explores the role of strigolactones (SLs) in mitigating the toxicity of polystyrene nanoplastics (PS-NPs) in Zea mays L. (maize). SLs application markedly inhibited PS-NPs accumulation in maize roots, thus enhancing the root weight, shoot weight and shoot length of maize. Physiological analysis showed that SLs application activated the activities of antioxidant defence enzymes, superoxide dismutase and catalase, to decrease the malondialdehyde content and electrolyte leakage and alleviate the accumulation of H2O2 and O2.- induced by PS-NPs in maize plants. Transcriptomic analyses revealed that SLs application induced transcriptional reprogramming by regulating the expression of genes related to MAPK, plant hormones and plant-pathogen interaction signal pathways in maize treated with PS-NPs. Notably, the expression of genes, such as ZmAUX/IAA and ZmGID1, associated with phytohormones in maize treated with PS-NPs underwent significant changes. In addition, SLs induced metabolic dynamics changes related to amino acid biosynthesis, ABC transporters, cysteine and methionine metabolism in maize treated with PS-NPs. In summary, these results strongly reveal that SLs could serve as a strategy to mitigate the accumulation and alleviate the stress of PS-NPs in maize, which appears to be a potential approach for mitigating the phytotoxicity induced by PS-NPs in maize.
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Affiliation(s)
- Qiaolu Li
- College of Agriculture, Yangtze University, Jingzhou 434025, China
| | - Binglin Zhang
- College of Agriculture, Yangtze University, Jingzhou 434025, China
| | - Weijuan Liu
- College of Agriculture, Yangtze University, Jingzhou 434025, China.
| | - Huawen Zou
- College of Agriculture, Yangtze University, Jingzhou 434025, China.
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S, Girakossyan I, Girndt M, Giuffrida A, Glenwright M, Glider T, Gloria R, Glowski D, Goh BL, Goh CB, Gohda T, Goldenberg R, Goldfaden R, Goldsmith C, Golson B, Gonce V, Gong Q, Goodenough B, Goodwin N, Goonasekera M, Gordon A, Gordon J, Gore A, Goto H, Goto S, Goto S, Gowen D, Grace A, Graham J, Grandaliano G, Gray M, Green JB, Greene T, Greenwood G, Grewal B, Grifa R, Griffin D, Griffin S, Grimmer P, Grobovaite E, Grotjahn S, Guerini A, Guest C, Gunda S, Guo B, Guo Q, Haack S, Haase M, Haaser K, Habuki K, Hadley A, Hagan S, Hagge S, Haller H, Ham S, Hamal S, Hamamoto Y, Hamano N, Hamm M, Hanburry A, Haneda M, Hanf C, Hanif W, Hansen J, Hanson L, Hantel S, Haraguchi T, Harding E, Harding T, Hardy C, Hartner C, Harun Z, Harvill L, Hasan A, Hase H, Hasegawa F, Hasegawa T, Hashimoto A, Hashimoto C, Hashimoto M, Hashimoto S, Haskett S, Hauske SJ, Hawfield A, Hayami T, Hayashi M, Hayashi S, Haynes R, Hazara A, Healy C, Hecktman J, Heine G, Henderson H, Henschel R, Hepditch A, Herfurth K, 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Effects of empagliflozin on progression of chronic kidney disease: a prespecified secondary analysis from the empa-kidney trial. Lancet Diabetes Endocrinol 2024; 12:39-50. [PMID: 38061371 PMCID: PMC7615591 DOI: 10.1016/s2213-8587(23)00321-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Sodium-glucose co-transporter-2 (SGLT2) inhibitors reduce progression of chronic kidney disease and the risk of cardiovascular morbidity and mortality in a wide range of patients. However, their effects on kidney disease progression in some patients with chronic kidney disease are unclear because few clinical kidney outcomes occurred among such patients in the completed trials. In particular, some guidelines stratify their level of recommendation about who should be treated with SGLT2 inhibitors based on diabetes status and albuminuria. We aimed to assess the effects of empagliflozin on progression of chronic kidney disease both overall and among specific types of participants in the EMPA-KIDNEY trial. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA), and included individuals aged 18 years or older with an estimated glomerular filtration rate (eGFR) of 20 to less than 45 mL/min per 1·73 m2, or with an eGFR of 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher. We explored the effects of 10 mg oral empagliflozin once daily versus placebo on the annualised rate of change in estimated glomerular filtration rate (eGFR slope), a tertiary outcome. We studied the acute slope (from randomisation to 2 months) and chronic slope (from 2 months onwards) separately, using shared parameter models to estimate the latter. Analyses were done in all randomly assigned participants by intention to treat. EMPA-KIDNEY is registered at ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and then followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroups of eGFR included 2282 (34·5%) participants with an eGFR of less than 30 mL/min per 1·73 m2, 2928 (44·3%) with an eGFR of 30 to less than 45 mL/min per 1·73 m2, and 1399 (21·2%) with an eGFR 45 mL/min per 1·73 m2 or higher. Prespecified subgroups of uACR included 1328 (20·1%) with a uACR of less than 30 mg/g, 1864 (28·2%) with a uACR of 30 to 300 mg/g, and 3417 (51·7%) with a uACR of more than 300 mg/g. Overall, allocation to empagliflozin caused an acute 2·12 mL/min per 1·73 m2 (95% CI 1·83-2·41) reduction in eGFR, equivalent to a 6% (5-6) dip in the first 2 months. After this, it halved the chronic slope from -2·75 to -1·37 mL/min per 1·73 m2 per year (relative difference 50%, 95% CI 42-58). The absolute and relative benefits of empagliflozin on the magnitude of the chronic slope varied significantly depending on diabetes status and baseline levels of eGFR and uACR. In particular, the absolute difference in chronic slopes was lower in patients with lower baseline uACR, but because this group progressed more slowly than those with higher uACR, this translated to a larger relative difference in chronic slopes in this group (86% [36-136] reduction in the chronic slope among those with baseline uACR <30 mg/g compared with a 29% [19-38] reduction for those with baseline uACR ≥2000 mg/g; ptrend<0·0001). INTERPRETATION Empagliflozin slowed the rate of progression of chronic kidney disease among all types of participant in the EMPA-KIDNEY trial, including those with little albuminuria. Albuminuria alone should not be used to determine whether to treat with an SGLT2 inhibitor. FUNDING Boehringer Ingelheim and Eli Lilly.
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P, Pesce F, Pessolano G, Petchey W, Petr EJ, Pfab T, Phelan P, Phillips R, Phillips T, Phipps M, Piccinni G, Pickett T, Pickworth S, Piemontese M, Pinto D, Piper J, Plummer-Morgan J, Poehler D, Polese L, Poma V, Pontremoli R, Postal A, Pötz C, Power A, Pradhan N, Pradhan R, Preiss D, Preiss E, Preston K, Prib N, Price L, Provenzano C, Pugay C, Pulido R, Putz F, Qiao Y, Quartagno R, Quashie-Akponeware M, Rabara R, Rabasa-Lhoret R, Radhakrishnan D, Radley M, Raff R, Raguwaran S, Rahbari-Oskoui F, Rahman M, Rahmat K, Ramadoss S, Ramanaidu S, Ramasamy S, Ramli R, Ramli S, Ramsey T, Rankin A, Rashidi A, Raymond L, Razali WAFA, Read K, Reiner H, Reisler A, Reith C, Renner J, Rettenmaier B, Richmond L, Rijos D, Rivera R, Rivers V, Robinson H, Rocco M, Rodriguez-Bachiller I, Rodriquez R, Roesch C, Roesch J, Rogers J, Rohnstock M, Rolfsmeier S, Roman M, Romo A, Rosati A, Rosenberg S, Ross T, Rossello X, Roura M, Roussel M, Rovner S, Roy S, Rucker S, Rump L, Ruocco M, Ruse S, Russo F, Russo M, Ryder M, Sabarai A, Saccà C, Sachson R, Sadler E, Safiee NS, Sahani M, Saillant A, Saini J, Saito C, Saito S, Sakaguchi K, Sakai M, Salim H, Salviani C, Sammons E, Sampson A, Samson F, Sandercock P, Sanguila S, Santorelli G, Santoro D, Sarabu N, Saram T, Sardell R, Sasajima H, Sasaki T, Satko S, Sato A, Sato D, Sato H, Sato H, Sato J, Sato T, Sato Y, Satoh M, Sawada K, Schanz M, Scheidemantel F, Schemmelmann M, Schettler E, Schettler V, Schlieper GR, Schmidt C, Schmidt G, Schmidt U, Schmidt-Gurtler H, Schmude M, Schneider A, Schneider I, Schneider-Danwitz C, Schomig M, Schramm T, Schreiber A, Schricker S, Schroppel B, Schulte-Kemna L, Schulz E, Schumacher B, Schuster A, Schwab A, Scolari F, Scott A, Seeger W, Seeger W, Segal M, Seifert L, Seifert M, Sekiya M, Sellars R, Seman MR, Shah S, Shah S, Shainberg L, Shanmuganathan M, Shao F, Sharma K, Sharpe C, Sheikh-Ali M, Sheldon J, Shenton C, Shepherd A, Shepperd M, Sheridan R, Sheriff Z, Shibata Y, Shigehara T, Shikata K, Shimamura K, Shimano H, Shimizu Y, Shimoda H, Shin K, Shivashankar G, Shojima N, Silva R, Sim CSB, Simmons K, Sinha S, Sitter T, Sivanandam S, Skipper M, Sloan K, Sloan L, Smith R, Smyth J, Sobande T, Sobata M, Somalanka S, Song X, Sonntag F, Sood B, Sor SY, Soufer J, Sparks H, Spatoliatore G, Spinola T, Squyres S, Srivastava A, Stanfield J, Staplin N, Staylor K, Steele A, Steen O, Steffl D, Stegbauer J, Stellbrink C, Stellbrink E, Stevens W, Stevenson A, Stewart-Ray V, Stickley J, Stoffler D, Stratmann B, Streitenberger S, Strutz F, Stubbs J, Stumpf J, Suazo N, Suchinda P, Suckling R, Sudin A, Sugamori K, Sugawara H, Sugawara K, Sugimoto D, Sugiyama H, Sugiyama H, Sugiyama T, Sullivan M, Sumi M, Suresh N, Sutton D, Suzuki H, Suzuki R, Suzuki Y, Suzuki Y, Suzuki Y, Swanson E, Swift P, Syed S, Szerlip H, Taal M, Taddeo M, Tailor C, Tajima K, Takagi M, Takahashi K, Takahashi K, Takahashi M, Takahashi T, Takahira E, Takai T, Takaoka M, Takeoka J, Takesada A, Takezawa M, Talbot M, Taliercio J, Talsania T, Tamori Y, Tamura R, Tamura Y, Tan CHH, Tan EZZ, Tanabe A, Tanabe K, Tanaka A, Tanaka A, Tanaka N, Tang S, Tang Z, Tanigaki K, Tarlac M, Tatsuzawa A, Tay JF, Tay LL, Taylor J, Taylor K, Taylor K, Te A, Tenbusch L, Teng KS, Terakawa A, Terry J, Tham ZD, Tholl S, Thomas G, Thong KM, Tietjen D, Timadjer A, Tindall H, Tipper S, Tobin K, Toda N, Tokuyama A, Tolibas M, Tomita A, Tomita T, Tomlinson J, Tonks L, Topf J, Topping S, Torp A, Torres A, Totaro F, Toth P, Toyonaga Y, Tripodi F, Trivedi K, Tropman E, Tschope D, Tse J, Tsuji K, Tsunekawa S, Tsunoda R, Tucky B, Tufail S, Tuffaha A, Turan E, Turner H, Turner J, Turner M, Tuttle KR, Tye YL, Tyler A, Tyler J, Uchi H, Uchida H, Uchida T, Uchida T, Udagawa T, Ueda S, Ueda Y, Ueki K, Ugni S, Ugwu E, Umeno R, Unekawa C, Uozumi K, Urquia K, Valleteau A, Valletta C, van Erp R, Vanhoy C, Varad V, Varma R, Varughese A, Vasquez P, Vasseur A, Veelken R, Velagapudi C, Verdel K, Vettoretti S, Vezzoli G, Vielhauer V, Viera R, Vilar E, Villaruel S, Vinall L, Vinathan J, Visnjic M, Voigt E, von-Eynatten M, Vourvou M, Wada J, Wada J, Wada T, Wada Y, Wakayama K, Wakita Y, Wallendszus K, Walters T, Wan Mohamad WH, Wang L, Wang W, Wang X, Wang X, Wang Y, Wanner C, Wanninayake S, Watada H, Watanabe K, Watanabe K, Watanabe M, Waterfall H, Watkins D, Watson S, Weaving L, Weber B, Webley Y, Webster A, Webster M, Weetman M, Wei W, Weihprecht H, Weiland L, Weinmann-Menke J, Weinreich T, Wendt R, Weng Y, Whalen M, Whalley G, Wheatley R, Wheeler A, Wheeler J, Whelton P, White K, Whitmore B, Whittaker S, Wiebel J, Wiley J, Wilkinson L, Willett M, Williams A, Williams E, Williams K, Williams T, Wilson A, Wilson P, Wincott L, Wines E, Winkelmann B, Winkler M, Winter-Goodwin B, Witczak J, Wittes J, Wittmann M, Wolf G, Wolf L, Wolfling R, Wong C, Wong E, Wong HS, Wong LW, Wong YH, Wonnacott A, Wood A, Wood L, Woodhouse H, Wooding N, Woodman A, Wren K, Wu J, Wu P, Xia S, Xiao H, Xiao X, Xie Y, Xu C, Xu Y, Xue H, Yahaya H, Yalamanchili H, Yamada A, Yamada N, Yamagata K, Yamaguchi M, Yamaji Y, Yamamoto A, Yamamoto S, Yamamoto S, Yamamoto T, Yamanaka A, Yamano T, Yamanouchi Y, Yamasaki N, Yamasaki Y, Yamasaki Y, Yamashita C, Yamauchi T, Yan Q, Yanagisawa E, Yang F, Yang L, Yano S, Yao S, Yao Y, Yarlagadda S, Yasuda Y, Yiu V, Yokoyama T, Yoshida S, Yoshidome E, Yoshikawa H, Young A, Young T, Yousif V, Yu H, Yu Y, Yuasa K, Yusof N, Zalunardo N, Zander B, Zani R, Zappulo F, Zayed M, Zemann B, Zettergren P, Zhang H, Zhang L, Zhang L, Zhang N, Zhang X, Zhao J, Zhao L, Zhao S, Zhao Z, Zhong H, Zhou N, Zhou S, Zhu D, Zhu L, Zhu S, Zietz M, Zippo M, Zirino F, Zulkipli FH. Impact of primary kidney disease on the effects of empagliflozin in patients with chronic kidney disease: secondary analyses of the EMPA-KIDNEY trial. Lancet Diabetes Endocrinol 2024; 12:51-60. [PMID: 38061372 DOI: 10.1016/s2213-8587(23)00322-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/24/2023] [Accepted: 10/25/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND The EMPA-KIDNEY trial showed that empagliflozin reduced the risk of the primary composite outcome of kidney disease progression or cardiovascular death in patients with chronic kidney disease mainly through slowing progression. We aimed to assess how effects of empagliflozin might differ by primary kidney disease across its broad population. METHODS EMPA-KIDNEY, a randomised, controlled, phase 3 trial, was conducted at 241 centres in eight countries (Canada, China, Germany, Italy, Japan, Malaysia, the UK, and the USA). Patients were eligible if their estimated glomerular filtration rate (eGFR) was 20 to less than 45 mL/min per 1·73 m2, or 45 to less than 90 mL/min per 1·73 m2 with a urinary albumin-to-creatinine ratio (uACR) of 200 mg/g or higher at screening. They were randomly assigned (1:1) to 10 mg oral empagliflozin once daily or matching placebo. Effects on kidney disease progression (defined as a sustained ≥40% eGFR decline from randomisation, end-stage kidney disease, a sustained eGFR below 10 mL/min per 1·73 m2, or death from kidney failure) were assessed using prespecified Cox models, and eGFR slope analyses used shared parameter models. Subgroup comparisons were performed by including relevant interaction terms in models. EMPA-KIDNEY is registered with ClinicalTrials.gov, NCT03594110. FINDINGS Between May 15, 2019, and April 16, 2021, 6609 participants were randomly assigned and followed up for a median of 2·0 years (IQR 1·5-2·4). Prespecified subgroupings by primary kidney disease included 2057 (31·1%) participants with diabetic kidney disease, 1669 (25·3%) with glomerular disease, 1445 (21·9%) with hypertensive or renovascular disease, and 1438 (21·8%) with other or unknown causes. Kidney disease progression occurred in 384 (11·6%) of 3304 patients in the empagliflozin group and 504 (15·2%) of 3305 patients in the placebo group (hazard ratio 0·71 [95% CI 0·62-0·81]), with no evidence that the relative effect size varied significantly by primary kidney disease (pheterogeneity=0·62). The between-group difference in chronic eGFR slopes (ie, from 2 months to final follow-up) was 1·37 mL/min per 1·73 m2 per year (95% CI 1·16-1·59), representing a 50% (42-58) reduction in the rate of chronic eGFR decline. This relative effect of empagliflozin on chronic eGFR slope was similar in analyses by different primary kidney diseases, including in explorations by type of glomerular disease and diabetes (p values for heterogeneity all >0·1). INTERPRETATION In a broad range of patients with chronic kidney disease at risk of progression, including a wide range of non-diabetic causes of chronic kidney disease, empagliflozin reduced risk of kidney disease progression. Relative effect sizes were broadly similar irrespective of the cause of primary kidney disease, suggesting that SGLT2 inhibitors should be part of a standard of care to minimise risk of kidney failure in chronic kidney disease. FUNDING Boehringer Ingelheim, Eli Lilly, and UK Medical Research Council.
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Liu WJ, Zhang HY, Liu DW. [Clinical effects of different types of tissue flaps in repairing the wounds with steel plate exposure and infection after proximal tibial fracture surgery]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:1140-1148. [PMID: 38129300 DOI: 10.3760/cma.j.cn501225-20231101-00171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Objective: To investigate the clinical effects of different types of tissue flaps in repairing the wounds with steel plate exposure and infection after proximal tibial fracture surgery. Methods: A retrospective observational study was conducted. From January 2015 to December 2021, 11 patients with steel plate exposure and infected wounds after proximal tibial fracture surgery who met the inclusion criteria were admitted to Jiangxi Provincial General Hospital of Armed Police, including 9 males and 2 females, aged 26 to 61 years. The wounds were located on the lateral side of the proximal leg in 5 cases, on the medial side of the proximal leg in 2 cases, and on the medial side of the proximal leg and the anterior tibia below the knee in 4 cases. After debridement, the wound area was 14 cm×6 cm-22 cm×11 cm. The wounds were repaired with different types of tissue flaps, and the steel plates were removed immediately if necessary, according to the infection around the steel plates. The reverse anterolateral thigh myocutaneous flap pedicled with the muscle containing the terminal small branch of the descending branch of the lateral circumflex femoral artery was used in 3 cases; the medial gastrocnemius muscle flap combined with the medial half of soleus muscle flap was used in 6 cases, and the lateral gastrocnemius muscle flap combined with the anterior tibial muscle flap was used in 2 cases. After the muscle flaps had stable blood supply, the wounds were closed with thin intermediate thickness skin graft from the healthy thigh. The area of myocutaneous flap ranged from 15 cm×7 cm to 18 cm×8 cm, and the area of muscle flap ranged from 6.0 cm×4.0 cm to 18.0 cm×12.0 cm. Among the 3 patients who were treated with reverse anterolateral thigh myocutaneous flap, the wounds of flap donor site on thighs were closed by direct suturing in 2 cases, and the wound in the flap donor site of thigh in 1 case that was not closed after suture was repaired with thin intermediate thickness skin graft from healthy thigh. The incisions in the flap donor sites of 8 cases treated with calf muscle flaps were sutured directly. After surgery, the survivals of tissue flap and skin graft on the muscle flap, wound healing status and wound healing time in recipient sites of tissue flaps, suture site healing in flap donor site, and survival of skin graft were observed and recorded. Whether the steel plate was removed after operation and during follow-up was recorded. During follow-up, the shape and texture of tissue flap, whether the recipient site of tissue flap had redness, swelling, ulceration, or sinus formation were observed, the fracture healing time was recorded. At the last follow-up, the knee joint flexion and extension range of motion was measured and the knee joint function was evaluated according to Hohl's knee joint function evaluation criteria; the plantar flexor muscle strength of ankle joint was measured in 8 patients who were treated with calf muscle flaps for wound repair; the Vancouver scar scale (VSS) was used to evaluate the scar condition in the flap donor site, and whether the scar affected the movement of the affected limbs was observed. Results: Tissue flaps of 11 patients all survived after surgery. The distal end of the reverse anterolateral thigh myocutaneous flaps was necrotic in 1 patient, and the wound was healed after dressing change and grafting with thin intermediate thickness skin from healthy thigh. The distal muscle necrosis of the medial gastrocnemius muscle flap was observed in 2 patients, and the granulation tissue grew well after dressing change. The skin graft on the muscle flap survived well. All the wounds in the recipient sites of tissue flaps were healed, and the healing time was 13 to 42 days after tissue flap transplantation. The suture site of flap donor site healed, and the skin graft survived well. In 1 patient, the steel plate was removed when the wound was repaired with the medial gastrocnemius muscle flap combined with the medial half of soleus muscle flap. One patient still had exudation after 3 weeks of wound repair with the reverse anterolateral thigh myocutaneous flap pedicled with the muscle containing the terminal small branch of the descending branch of the lateral circumflex femoral artery, and the wound was healed after removing the steel plate. The steel plates of the other patients were preserved. During the follow-up of 6-25 months, except for 1 reverse anterolateral thigh myocutaneous flap had bloated pedicle, the other tissue flaps had good appearance and texture. One patient had redness and swelling in the recipient site of the tissue flap at 6 weeks after discharge, and the redness and swelling subsided without recurrence after anti-infection treatment. In 1 patient, repeated rupture and exudation occurred in the recipient site of tissue flap in 3 months after discharge, resulting in sinus tract formation, which was healed after the removing of steel plate. The fracture healing time of patients ranged from 6 to 15 months after injury. At the last follow-up, the knee joint function was evaluated as excellent in 4 cases, good in 6 cases, and poor in 1 case. Among the 8 patients who were treated with calf muscle flaps for wound repair, 7 patients had ankle joint plantar flexor muscle strength of grade Ⅵ, and 1 patient had ankle plantar flexor muscle strength of grade Ⅴ. The VSS scores of scars in the flap donor sites ranged from 2 to 7, and scars did not significantly affect the movement of the affected limbs. Conclusions: The reverse anterolateral thigh myocutaneous flap pedicled with the muscle containing the terminal small branch of the descending branch of the lateral circumflex femoral artery and the gastrocnemius muscle flap combined with soleus muscle flap or anterior tibial muscle flap are the derived types of the commonly used reverse anterolateral thigh myocutaneous flap and gastrocnemius muscle flap. Using them to repair the wounds with steel plate exposure and infection after proximal tibial fracture surgery can not only ensure the smooth operation, but also preserve the steel plate and promote fracture healing as much as possible, without significantly affecting the function of the affected limb.
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Affiliation(s)
- W J Liu
- Department of Burns and Plastic Surgery, Jiangxi Provincial General Hospital of Armed Police, Nanchang 330030, China
| | - H Y Zhang
- Medical Center of Burn Plastic and Wound Repair, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - D W Liu
- Medical Center of Burn Plastic and Wound Repair, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
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Chen HX, Huang YW, Liu WJ, Liu B, Chen GB, Zhang DD, Chen PY, Lai W. [Visual analysis of the current research status and hotspots of electric burns at home and abroad]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:977-984. [PMID: 37899564 DOI: 10.3760/cma.j.cn501225-20230511-00167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Objective: To analyze the literature on electric burns published at home and abroad, and to explore the research hotspots and frontiers of electric burns. Methods: The bibliometric method was used. The Chinese and English literature related to electric burns published in China National Knowledge Infrastructure, Wanfang database, VIP database and the core collection of Web of Science database from January 1, 2013 to December 31, 2022 were searched respectively, and the CiteSpace 6.2.R2 software was used for analysis. The number of papers, authors, countries, and institutions of Chinese and English literature were counted respectively, and the co-occurrence analysis of keywords and mutation analysis and cluster analysis on the basis of the co-occurrence analysis were conducted, besides, the clustering time line figure was obtained after the keywords were sorted by time to explore the current research status and the evolution process of hotspots in the field of electric burns. Results: A total of 398 English papers were retrieved from the core collection of Web of Science database, and a total of 523 Chinese papers were retrieved from China National Knowledge Infrastructure, Wanfang database, and VIP database after duplicate check. From 2013 to 2022, the number of English literature published in the field of electric burns showed a steadily upward trend, and the number of published Chinese literature showed a downward trend and tended to be stable. In Chinese literature, a total of 302 authors as the first author published papers related to electric burns, with 17 core authors published ≥3 papers; in English literature, a total of 320 authors as the first author published papers related to electric burns. Researches on electric burns were carried out in 65 countries, with United States having the most cooperation with other countries and the largest number of papers published. A total of 512 institutions at home and abroad published papers related to electric burns, and the institutions with the largest number of Chinese and English papers were Shanghai Electric Power Hospital in China (n=14) and Hallym University in Korea (n=11), respectively. A total of 1 176 Chinese keywords and 1 068 English keywords were included for co-occurrence analysis after excluding keywords related to the searching words. The top three keywords in frequency in Chinese literature were surgical flap, wound repair, and nursing, and the top three keywords in frequency in English literature were management, epidemiology, and children. Ten clusters were obtained by keyword analysis in Chinese literature, and the largest cluster was wound healing, followed by clinical effects and surgical flaps. Seven clusters were obtained by keyword analysis in English literature, and the largest cluster was reconstructive surgical procedures, followed by chronic pain and shock. The persistent clusters in Chinese literature were wound healing and clinical outcomes, etc., and the prominent nodes in the recent two years were surgical timing, limb electric burns, and hypertrophic scars; the persistent clusters in English literature were reconstructive surgical procedures and chronic pain, etc., and the prominent nodes in the recent two years were predictors and burn management, etc. In Chinese literature, the keyword with the longest duration of mutation (2017-2021) was wrist electric burns, and the keyword with the highest intensity of mutation was flap repair; in English literature, the keyword with the longest duration of the mutation (2019-2022) was voltage, and the keyword with the highest intensity of mutation was prevention. Conclusions: There are similarities and differences in the research directions and hotspots of electric burns at home and abroad. Surgical flap repair is a common research hotspot at home and abroad. At present, domestic research focuses on wound healing, wrist electric burns, and other aspects, while international research focuses on treatment management, epidemiology, reconstruction, and other aspects.
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Affiliation(s)
- H X Chen
- Department of Nursing, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Y W Huang
- School of Nursing, Guangdong Pharmaceutical University, Guangzhou 510310, China
| | - W J Liu
- School of Nursing, Guangdong Pharmaceutical University, Guangzhou 510310, China
| | - B Liu
- School of Nursing, Guangdong Pharmaceutical University, Guangzhou 510310, China
| | - G B Chen
- Department of Burn and Wound Repair Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - D D Zhang
- Department of Burn and Wound Repair Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - P Y Chen
- Department of Burn and Wound Repair Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - W Lai
- Department of Burn and Wound Repair Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
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Yang YY, Zhang XF, Zhu JW, Wang PG, Liu WJ, Wu XW, Ren JA. [Establishment and validation of a predictive clinical model for postoperative surgical site infection in patients with colorectal surgery]. Zhonghua Wei Chang Wai Ke Za Zhi 2023; 26:837-846. [PMID: 37709691 DOI: 10.3760/cma.j.cn441530-20230619-00217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
Objective: To investigate the risk factors of surgical site infection (SSI) after colorectal surgery, and to establish and validate a risk prediction model nomogram. Methods: An observational study was conducted to retrospectively collect data of 6527 patients aged ≥16 years who underwent colorectal surgery in 56 domestic hospitals from March 1, 2021 to February 28, 2022 from the national Surgical Site Infection Surveillance network. The incidence of SSI after surgery was 2.3% (149/6527). According to the ratio of 7:3, 6527 patients were randomly divided into the modeling cohort (4568 cases) and the validation cohort (1959 cases), and there was no statistically significant difference between the two datasets (P>0.05). Univariate analysis was performed using t test /Mann-Whitney U test /χ2 test. Multivariate analysis was performed using binary logistic regression to establish a preliminary model and select variables using Lasso analysis to establish an optimized model nomogram. The discrimination and calibration of the model were evaluated by ROC curve, calibration curve, and Hosmer-Lemeshow test. AUC value>0.7 is considered a good discrimination of the model. The Bootstrap method (repeated self-sampling 1000 times) was used to verify the constructed model internally and externally to evaluate the accuracy of the constructed model. Results: Multivariate analysis showed that history of chronic liver disease (OR=3.626, 95%CI: 1.297-10.137, P<0.001) and kidney disease (OR=1.567,95%CI:1.042-2.357,P=0.038), surgical antibiotic prophylaxis (OR=1.564, 95%CI:1.038-2.357,P=0.035), and emergency surgery (OR=1.432,95%CI: 1.089-1.885, P=0.021), open surgery (OR=1.418, 95%CI:1.045-1.924, P=0.042), preoperative stoma (OR=3.310, 95%CI:1.542-7.105,P<0.001), postoperative stoma (OR=2.323,95%CI: 1.537-8.134,P<0.001), surgical incision type above grade II (OR=1.619,95%CI:1.097-2.375,P=0.014), and each unit increase in total bilirubin (OR=1.003,95%CI:-0.994-1.012, P=0.238), alanine aminotransferase (OR=1.006, 95%CI:1.001-1.011,P=0.032), blood urea nitrogen (OR=1.003,95%CI:0.995-1.011,P=0.310), blood glucose (OR=1.024, 95%CI:1.005-1.043,P=0.027), C-reactive protein (OR=1.007, 95%CI:1.003-1.011,P<0.001), length of incision (OR=1.042, 95%CI:1.002-1.087,P=0.031), surgical duration (OR=1.003,95%CI:1.001-1.005,P=0.017), and surgical blood loss (OR=1.001,95%CI: 1.000-1.002,P=0.045) were risk factors for SSI after colorectal surgery. Each unit increase in albumin level (OR=0.969,95%CI:0.941-0.998,P=0.036) was an independent protective factor for SSI after colorectal surgery. The area under the curve of the optimized model obtained by internal and external validation were 0.768 (95%CI: 0.723-0.813) and 0.753 (95%CI: 0.680-0.832), respectively. The predicted value of the calibration curve was basically consistent with the actual value. Conclusions: The risk prediction model for SSI after colorectal surgery constructed in this study has good discrimination and calibration. The nomogram created in this model can provide an evaluation basis for the observed rate and expected event rate of SSI after clinical colorectal surgery.
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Affiliation(s)
- Y Y Yang
- Research Institute of General Surgery, Jinling Hospital, the Affiliated Second Clinical Hospital, Medical School of Southeast University, Nanjing 210002, China
| | - X F Zhang
- Research Institute of General Surgery, Jinling Hospital, the Affiliated Second Clinical Hospital, Medical School of Southeast University, Nanjing 210002, China
| | - J W Zhu
- Department of General Surgery, the Affiliated Hospital of Nantong University, Nantong 226001, China
| | - P G Wang
- Department of Emergency Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - W J Liu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - X W Wu
- Research Institute of General Surgery, Jinling Hospital, the Affiliated Second Clinical Hospital, Medical School of Southeast University, Nanjing 210002, China
| | - J A Ren
- Research Institute of General Surgery, Jinling Hospital, the Affiliated Second Clinical Hospital, Medical School of Southeast University, Nanjing 210002, China
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Chen HX, Liu WJ, Liu B, Huang ZF, Zhang QP, Xiao XL, Lai W, Zheng SY. [Influence of work engagement and self-efficacy of nurses on clinical practice ability in burn intensive care unit]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:779-786. [PMID: 37805790 DOI: 10.3760/cma.j.cn501225-20220905-00379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
Objective: To analyze the influence of work engagement and self-efficacy of nurses on clinical practice ability in burn intensive care unit (BICU), and to explore its potential pathways of action. Methods: A cross-sectional survey was conducted. From May to October 2020, a total of 30 hospitals with BICU in China were selected by stratified sampling method. Among BICU nurses who met the inclusion criteria, their clinical practice ability, work engagement, and self-efficacy were evaluated by self-evaluation scale of oriented problem-solving behavior in nursing practice (OPSN), Utrecht work engagement scale (UWES), and general self-efficacy scale (GSES), respectively. The total scale scores of each index and the average item scores were recorded. The self-designed general data questionnaire was used to investigate the nurses' gender, age, marital status, education background, working years, professional title, and the economic region of the hospital that they belonged to. The total scale scores of the above-mentioned three evaluation indexes were compared after the classification of nurses according to general data, and the data were statistically analyzed with independent sample t test or one-way analysis of variance. Pearson correlation analysis was used to analyze the correlation between the total scale scores of the three evaluation indexes. Based on the total scale scores of the above-mentioned three evaluation indexes, a structural equation model was established, the mediation analysis of the relationship among the three evaluation indexes and the pathway analysis of the structural model were conducted, and the Bootstrap method was used to verify the pathways of action. Results: A total of 401 questionnaires were distributed, and 337 valid questionnaires were returned, with a valid return rate of 84.04%. The total scale scores of clinical practice ability, work engagement, and self-efficacy of 337 nurses were 98.2±11.7, 67.7±18.6, and 26.6±5.6, respectively, and the average item scores were 3.9±0.5, 4.5±1.2, and 2.7±0.6, respectively. Among the 337 nurses, the majority were female, aged 40 or below, married, and had a bachelor's degree with work experience of ≤10 years; both nurses with professional nurse title and nurses from the Southeast region accounted for about 50%. There were statistically significant differences in the total scale score of clinical practice ability among nurses with different ages, education backgrounds, working years, and professional titles (with F values of 3.26, 4.36, 3.12, and 2.80, respectively, P<0.05). There was statistically significant difference in the total scale score of work engagement among nurses with different working years (F=4.50, P<0.05). There were statistically significant differences in the total scale score of self-efficacy among nurses with different ages, working years, and professional titles (with F values of 4.91, 4.50, and 2.91, respectively, P<0.05). The total scale score of nurses' work engagement was significantly positively correlated with the total scale score of clinical practice ability and the total scale score of self-efficacy (with r values of 0.30 and 0.51, respectively, P<0.05). The total scale score of nurses' self-efficacy was significantly positively correlated with the total scale score of clinical practice ability (r=0.37, P<0.05). The model had good adaptability, and the intermediary model was established. Nurses' work engagement had a significantly positive effect on both self-efficacy and clinical practice ability (with β values of 0.54 and 0.16, respectively, P<0.05), and nurses' self-efficacy had a significantly positive effect on clinical practice ability (β=0.29, P<0.05). Work engagement had a direct effect on self-efficacy and clinical practice ability, and self-efficacy had a direct effect on clinical practice ability and played a mediating role between work engagement and clinical practice ability. Bootstrap validation showed that self-efficacy played a significantly mediating role in the influence of work engagement on clinical practice ability (with effect size of 0.16, with 95% confidence interval of 0.08-0.24, P<0.05), accounting for half of the total effect of work engagement on clinical practice ability (with effect size of 0.32). Conclusions: BICU nurses have an above-average level of clinical practice ability, a medium level of self-efficacy, and a high level of work engagement. Work engagement and self-efficacy are positively correlated with clinical practice ability. Work engagement can directly affect clinical practice ability or indirectly affect clinical practice ability through the mediating role of self-efficacy.
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Affiliation(s)
- H X Chen
- Department of Nursing, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - W J Liu
- Department of Nursing, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - B Liu
- Department of Nursing, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Z F Huang
- Department of Burn and Wound Repair Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - Q P Zhang
- Department of Burn and Wound Repair Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - X L Xiao
- Department of Burn and Wound Repair Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - W Lai
- Department of Burn and Wound Repair Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
| | - S Y Zheng
- Department of Burn and Wound Repair Surgery, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510080, China
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9
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Liu MJ, Liu WJ, Lai LJ, Xie LT, Chen SR, Lan P. [A case of poisoning caused by head and face bite of Deinagkistrodon acutus]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:626-629. [PMID: 37667162 DOI: 10.3760/cma.j.cn121094-20220718-00372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/06/2023]
Abstract
Snake bites kill and maim many people every year. Head and face venomous snake bite is rare, easy to misdiagnose and miss diagnosis, and the fatality rate is high. In this paper, 1 case of head and face venomous snake bite poisoning was reported and 10 similar cases were reviewed. The clinical characteristics of head and face venomous snake bite poisoning were summarized to provide guidance for clinical diagnosis and treatment. Head and face venomous snake bites may lead to airway injury, edema, and airway obstruction is the main cause of early death. Timely intubation or tracheotomy to maintain oxygen supply and early use of antivenin can improve prognosis.
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Affiliation(s)
- M J Liu
- Department of Emergency, The Fifth Attiliated Hospital of Wenzhou Medical University, Lishui 323000, China
| | - W J Liu
- Department of Emergency, The Fifth Attiliated Hospital of Wenzhou Medical University, Lishui 323000, China
| | - L J Lai
- Department of Emergency, The Fifth Attiliated Hospital of Wenzhou Medical University, Lishui 323000, China
| | - L T Xie
- Department of Emergency, The Fifth Attiliated Hospital of Wenzhou Medical University, Lishui 323000, China
| | - S R Chen
- Department of Emergency, The Second People's Hospital of Jinyun County, Lishui 321400, China
| | - P Lan
- Department of Emergency, The Fifth Attiliated Hospital of Wenzhou Medical University, Lishui 323000, China
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10
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Wang P, Li Y, Liu Z, Li X, Wang Y, Liu W, Li X, Hu J, Zhu W, Wang C, Li S, Gu T, Xu D, Tang C, Wang Y, Li C, Zhang S, Wu J. Reciprocal regulation of flower induction by ELF3α and ELF3β generated via alternative promoter usage. Plant Cell 2023; 35:2095-2113. [PMID: 36883592 PMCID: PMC10226570 DOI: 10.1093/plcell/koad067] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/21/2023] [Accepted: 02/21/2023] [Indexed: 05/30/2023]
Abstract
Flowering is critical for sexual reproduction and fruit production. Several pear (Pyrus sp.) varieties produce few flower buds, but the underlying mechanisms are unknown. The circadian clock regulator EARLY FLOWERING3 (ELF3) serves as a scaffold protein in the evening complex that controls flowering. Here, we report that the absence of a 58-bp sequence in the 2nd intron of PbELF3 is genetically associated with the production of fewer flower buds in pear. From rapid amplification of cDNA ends sequencing results, we identified a short, previously unknown transcript from the PbELF3 locus, which we termed PbELF3β, whose transcript level was significantly lower in pear cultivars that lacked the 58-bp region. The heterologous expression of PbELF3β in Arabidopsis (Arabidopsis thaliana) accelerated flowering, whereas the heterologous expression of the full-length transcript PbELF3α caused late flowering. Notably, ELF3β was functionally conserved in other plants. Deletion of the 2nd intron reduced AtELF3β expression and caused delayed flowering time in Arabidopsis. AtELF3β physically interacted with AtELF3α, disrupting the formation of the evening complex and consequently releasing its repression of flower induction genes such as GIGANTEA (GI). AtELF3β had no effect in the absence of AtELF3α, supporting the idea that AtELF3β promotes flower induction by blocking AtELF3α function. Our findings show that alternative promoter usage at the ELF3 locus allows plants to fine-tune flower induction.
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Affiliation(s)
- Peng Wang
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing 210095, China
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Yu Li
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhe Liu
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing 210095, China
- Department of Pharmacy, Changzhi Medical College, Changzhi 046000, China
| | - Xuhan Li
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing 210095, China
| | - Yicheng Wang
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing 210095, China
| | - Weijuan Liu
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing 210095, China
| | - Xiao Li
- Shijiazhuang Institute of Fruit Trees, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050061, China
| | - Jianjian Hu
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing 210095, China
| | - Wenyi Zhu
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing 210095, China
| | - Changquan Wang
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Shan Li
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing 210095, China
| | - Tingting Gu
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing 210095, China
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Dongqing Xu
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing 210095, China
| | - Chao Tang
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing 210095, China
| | - Yingtao Wang
- Shijiazhuang Institute of Fruit Trees, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050061, China
| | - Chao Li
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing 210095, China
| | - Shaoling Zhang
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing 210095, China
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
| | - Juyou Wu
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing 210095, China
- College of Horticulture, Nanjing Agricultural University, Nanjing 210095, China
- Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
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11
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Liu W, Zhang Y, Zhang B, Zou H. Expression of ZmNAGK in tobacco enhances heat stress tolerance via activation of antioxidant-associated defense. Plant Physiol Biochem 2023; 199:107719. [PMID: 37148659 DOI: 10.1016/j.plaphy.2023.107719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/27/2023] [Accepted: 04/23/2023] [Indexed: 05/08/2023]
Abstract
Heat stress severely inhibits plant growth and limits crop yields. Thus, it is crucial to identify genes that are associated with plant heat stress responses. Here, we report a maize (Zea mays L.) gene, N-acetylglutamate kinase (ZmNAGK), that positively enhances plant heat stress tolerance. The ZmNAGK expression level was significantly up-regulated by heat stress in maize plants, and ZmNAGK was found to be localized in maize chloroplasts. Phenotypic analysis showed that overexpressing of ZmNAGK enhanced the tolerance of tobacco to heat stress both in the seed germination and seedling growth stages. Further physiological analysis showed that ZmNAGK overexpression in tobacco could alleviate oxidative damages that occurred during heat stress via activation of antioxidant defense signaling. Transcriptome analysis revealed that ZmNAGK could modulate the expression of antioxidant-enzyme encoding genes, such as ascorbate peroxidase 2 (APX2) and superoxide dismutase C (SODC), and heat shock network genes. Taken together, we have identified a maize gene that can provide plants with heat tolerance through the induction of antioxidant-associated defense signaling.
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Affiliation(s)
- Weijuan Liu
- MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), College of Agriculture, Yangtze University, Jingzhou, 434025, China; Hubei Collaborative Innovation Center for Grain Industry, Yangtze University, Jingzhou, 434025, China; College of Agriculture, Yangtze University, Jingzhou, 434025, China.
| | - Yan Zhang
- College of Agriculture, Yangtze University, Jingzhou, 434025, China
| | - Binglin Zhang
- MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), College of Agriculture, Yangtze University, Jingzhou, 434025, China; Hubei Collaborative Innovation Center for Grain Industry, Yangtze University, Jingzhou, 434025, China; College of Agriculture, Yangtze University, Jingzhou, 434025, China
| | - Huawen Zou
- MARA Key Laboratory of Sustainable Crop Production in the Middle Reaches of the Yangtze River (Co-construction by Ministry and Province), College of Agriculture, Yangtze University, Jingzhou, 434025, China; Hubei Collaborative Innovation Center for Grain Industry, Yangtze University, Jingzhou, 434025, China; College of Agriculture, Yangtze University, Jingzhou, 434025, China.
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12
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Hong L, Hou C, Chen L, Huang X, Huang J, Liu W, Shen X. Developing a competency framework for extracorporeal membrane oxygenation nurses: A qualitative study. Nurs Open 2023; 10:2449-2463. [PMID: 36463394 PMCID: PMC10006586 DOI: 10.1002/nop2.1502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 10/22/2022] [Accepted: 11/16/2022] [Indexed: 12/05/2022] Open
Abstract
AIM To develop a competency framework applicable to Chinese extracorporeal membrane oxygenation (ECMO) nurses. DESIGN A qualitative study was performed following the consolidated criteria for reporting qualitative research. METHODS Semi-structured interviews based on the critical incident technique were conducted among 21 ECMO care providers recruited from five well-known ECMO centres in Guangzhou, China. Interview transcripts were coded and analysed using the constant comparative method. The data collection period lasted from November 2021 to April 2022. RESULTS A competency framework for ECMO nurses was identified. It included four domains: knowledge, skills, behaviours and attitudes, containing 33 subcompetencies and 66 items. RELEVANCE TO CLINICAL PRACTICE This framework can be a reference for the assessment and training of ECMO nurses.
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Affiliation(s)
- Liwei Hong
- Department of Critical Care MedicineGuangzhou Institute of Respiratory Health First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
| | - Chunyi Hou
- Department of Critical Care MedicineGuangzhou Institute of Respiratory Health First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
| | - Lihua Chen
- Department of Critical Care MedicineGuangzhou Institute of Respiratory Health First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
| | - Xiaoqun Huang
- Department of Critical Care MedicineGuangzhou Institute of Respiratory Health First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
| | - Jingye Huang
- Department of Critical Care MedicineGuangzhou Institute of Respiratory Health First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
| | - Weijuan Liu
- Department of PediatricsFirst Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
| | - Xiangxiang Shen
- Department of Critical Care MedicineGuangzhou Institute of Respiratory Health First Affiliated Hospital of Guangzhou Medical UniversityGuangzhouChina
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13
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Liu Z, Liu W, Wang Z, Qi K, Xie Z, Zhang S, Wu J, Wang P. Diurnal transcriptome dynamics reveal the photoperiod response of Pyrus. Physiol Plant 2023; 175:e13893. [PMID: 36929905 DOI: 10.1111/ppl.13893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 02/15/2023] [Accepted: 03/14/2023] [Indexed: 06/18/2023]
Abstract
Photoperiod provides a key environmental signal that controls plant growth. Plants have evolved an integrated mechanism for sensing photoperiods with internal clocks to orchestrate physiological events. This mechanism has been identified to enable timely plant growth and improve fitness. Although the components and pathways underlying photoperiod regulation have been described in many species, diurnal patterns of gene expression at the genome-wide level under different photoperiods are rarely reported in perennial fruit trees. To explore the global gene expression in response to photoperiod, pear plants were cultured under long-day (LD) and short-day (SD) conditions. A time-series transcriptomic study was implemented using LD and SD samples collected at 4 h intervals over 2 days. We identified 13,677 rhythmic genes, of which 7639 were identified under LD and 10,557 under SD conditions. Additionally, 4674 genes were differentially expressed in response to photoperiod change. We also characterized the candidate homologs of clock-associated genes in pear. Clock genes were involved in the regulation of many processes throughout the day, including photosynthesis, stress response, hormone dynamics, and secondary metabolism. Strikingly, genes within photosynthesis-related pathways were enriched in both the rhythmic and differential expression analyses. Several key candidate genes were identified to be associated with regulating photosynthesis and improving productivity under different photoperiods. The results suggest that temporal variation in gene expression should not be ignored in pear gene function research. Overall, our work expands the understanding of photoperiod regulation of plant growth, particularly by extending the research to non-model trees.
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Affiliation(s)
- Zhe Liu
- Sanya Institute of Nanjing Agricultural University, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China
- Department of Pharmacy, Changzhi Medical College, Changzhi, 046000, China
| | - Weijuan Liu
- Sanya Institute of Nanjing Agricultural University, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China
| | - Zhangqing Wang
- Sanya Institute of Nanjing Agricultural University, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China
| | - Kaijie Qi
- Sanya Institute of Nanjing Agricultural University, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China
| | - Zhihua Xie
- Sanya Institute of Nanjing Agricultural University, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China
| | - Shaoling Zhang
- Sanya Institute of Nanjing Agricultural University, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China
| | - Juyou Wu
- Sanya Institute of Nanjing Agricultural University, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China
| | - Peng Wang
- Sanya Institute of Nanjing Agricultural University, State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China
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14
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Liu Z, Zhu X, Liu W, Qi K, Xie Z, Zhang S, Wu J, Wang P. Characterization of the REVEILLE family in Rosaceae and role of PbLHY in flowering time regulation. BMC Genomics 2023; 24:49. [PMID: 36707756 PMCID: PMC9883883 DOI: 10.1186/s12864-023-09144-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 01/19/2023] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND The circadian clock integrates endogenous and exogenous signals and regulates various physiological processes in plants. REVEILLE (RVE) proteins play critical roles in circadian clock system, especially CCA1 (CIRCADIAN CLOCK ASSOCIATED 1) and LHY (LATE ELONGATED HYPOCOTYL), which also participate in flowering regulation. However, little is known about the evolution and function of the RVE family in Rosaceae species, especially in Pyrus bretschneideri. RESULTS In this study, we performed a genome-wide analysis and identified 51 RVE genes in seven Rosaceae species. The RVE family members were classified into two groups based on phylogenetic analysis. Dispersed duplication events and purifying selection were the main drivers of evolution in the RVE family. Moreover, the expression patterns of ten PbRVE genes were diverse in P. bretschneideri tissues. All PbRVE genes showed diurnal rhythms under light/dark cycles in P. bretschneideri leaves. Four PbRVE genes also displayed robust rhythms under constant light conditions. PbLHY, the gene with the highest homology to AtCCA1 and AtLHY in P. bretschneideri, is localized in the nucleus. Ectopic overexpression of PbLHY in Arabidopsis delayed flowering time and repressed the expression of flowering time-related genes. CONCLUSION These results contribute to improving the understanding and functional research of RVE genes in P. bretschneideri.
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Affiliation(s)
- Zhe Liu
- grid.254020.10000 0004 1798 4253Department of Pharmacy, Changzhi Medical College, Changzhi, 046000 China ,grid.27871.3b0000 0000 9750 7019Sanya Institute of Nanjing Agricultural University, State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China ,Shanxi Province Key Laboratory of Functional Food with Homologous of Medicine and Food, Changzhi, China
| | - Xiaoxuan Zhu
- grid.27871.3b0000 0000 9750 7019Sanya Institute of Nanjing Agricultural University, State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Weijuan Liu
- grid.27871.3b0000 0000 9750 7019Sanya Institute of Nanjing Agricultural University, State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Kaijie Qi
- grid.27871.3b0000 0000 9750 7019Sanya Institute of Nanjing Agricultural University, State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Zhihua Xie
- grid.27871.3b0000 0000 9750 7019Sanya Institute of Nanjing Agricultural University, State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Shaoling Zhang
- grid.27871.3b0000 0000 9750 7019Sanya Institute of Nanjing Agricultural University, State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
| | - Juyou Wu
- grid.27871.3b0000 0000 9750 7019Sanya Institute of Nanjing Agricultural University, State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China ,Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Nanjing, China
| | - Peng Wang
- grid.27871.3b0000 0000 9750 7019Sanya Institute of Nanjing Agricultural University, State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095 China
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Wu XW, Zhang XF, Yang YY, Kang JQ, Wang PG, Wang DR, Li LP, Liu WJ, Ren JA. [Surgical site infection after colorectal surgery in China from 2018 to 2020]. Zhonghua Wei Chang Wai Ke Za Zhi 2022; 25:804-811. [PMID: 36117372 DOI: 10.3760/cma.j.cn441530-20220206-00044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: This study aims to survey the incidence of surgical site infection (SSI) in China and to analyze its risk factors, so as to prevent and control SSI after colorectal surgery. Methods: An observative study was conducted. Based on a program of Chinese SSI Surveillance from 2018 to 2020, the clinical data of all adult patients undergoing colorectal surgery during this time period were extracted. These included demographic characteristics and perioperative clinical parameters. Minors, pregnant women, obstetric or gynecological surgery, urological system surgery, retroperitoneal surgery, resection of superficial soft tissue masses, and mesh or other implants were excluded. A total of 2122 patients undergoing colorectal surgery from 50 hospitals were included, including 1252 males and 870 females. The median age was 63 (16) years and the median BMI was 23 (4.58) kg/m2. The primary outcome was the incidence of SSI within 30 days after colorectal surgery. The secondary outcomes were mortality within 30 days postoperatively, length of ICU stays and postoperative hospital stays, and cost of hospitalization. Patients were divided into the SSI group and non-SSI group based on the occurrence of SSI. Multivariable logistic regression was performed to analyze risk factors of SSI after colorectal surgery, and subgroup analysis was conducted for open and laparoscopic surgery. Results: The incidence of SSI after colorectal surgery was 5.6% (119/2122), including 47 cases (47/119, 39.5%) with superficial incisional infections, 24 cases (24/119, 20.2%) with deep incisional infections, and 48 cases (48/119, 40.3%) with organ/space infections. The occurrence of SSI significantly increased mortality [2.5% (3/119) vs. 0.1%(3/2003), χ2=22.400, P=0.003], the length of ICU stay [0 (1) day vs. 0(0) day, U=131 339, P<0.001], postoperative hospital stay [18.5 (12.8) days vs. 9.0 (6.0) days, U=167 902, P<0.001], and medical expenses [75 000 (49 000) yuan vs. 60 000 (31 000) yuan, U=126 189, P<0.001] (P<0.05). Multivariate analysis revealed that hypertension (OR=1.782, 95%CI: 1.173-2.709, P=0.007), preoperative albumin level (OR=1.680, 95%CI: 1.089-2.592, P=0.019), a contaminated or infected incision (OR= 1.993, 95%CI: 1.076-3.689, P=0.028), emergency surgery (OR=2.067, 95%CI: 1.076-3.972, P=0.029), open surgery (OR=2.132, 95%CI: 1.396-3.255, P<0.001), and surgical duration (OR=1.804, 95%CI: 1.188-2.740, P=0.006) were risk factors for SSI, while preoperative skin preparation (OR=0.478, 95%CI: 0.310-0.737, P=0.001) was a protective factor for SSI. Subgroup analysis was performed on patients undergoing open or laparoscopic surgery. The incidence of SSI in the open surgery group was 10.2%, which was significantly higher than that in the laparoscopic or robotic group (3.5%, χ2=39.816, P<0.001). Subgroup analysis identified that a contaminated or infected incision (OR=2.168, 95%CI: 1.042-4.510, P=0.038) and surgical duration (OR=2.072, 95%CI: 1.171-3.664, P=0.012) were risk factors for SSI after open surgery, while mechanical bowel preparation (OR=0.428, 95%CI: 0.227-0.807, P=0.009) and preoperative skin preparation (OR=0.356, 95%CI: 0.199-0.634, P<0.001) were protective factors for SSI after open surgery. In laparoscopic surgery, diabetes mellitus (OR= 2.292, 95%CI: 1.138-4.617, P=0.020) and hypertension (OR=2.265, 95%CI: 1.234-4.159, P=0.008) were risk factors for SSI. Conclusions: The incidence of SSI after colorectal surgery is 5.6%. Minimally invasive surgery should be selected to reduce the occurrence of postoperative SSI. To prevent the occurrence of SSI after open surgery, skin preparation and mechanical bowel preparation should be performed before the operation, and the duration of the operation should be shortened as much as possible. In the perioperative period, care of patients with hypertension, diabetes, and contaminated or infected incisions should be given particular attention.
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Affiliation(s)
- X W Wu
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - X F Zhang
- Research Institute of General Surgery, Jinling Hospital, the Affiliated Second Clinical Hospital, Medical School of Southeast University, Nanjing 210002, China
| | - Y Y Yang
- Research Institute of General Surgery, Jinling Hospital, the Affiliated Second Clinical Hospital, Medical School of Southeast University, Nanjing 210002, China
| | - J Q Kang
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - P G Wang
- Department of Emergency Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - D R Wang
- Department of Gastrointestinal Surgery, Northern Jiangsu People's Hospital, Yangzhou 225001, China
| | - L P Li
- Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated Shandong First Medical University, Jinan 250021, China
| | - W J Liu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - J A Ren
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China Research Institute of General Surgery, Jinling Hospital, the Affiliated Second Clinical Hospital, Medical School of Southeast University, Nanjing 210002, China
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Meng WL, Zheng YX, Ren ZY, Yang HT, Li S, Zhao DD, Chen W, Zhu MY, Liu WJ, Zhang Y, Xu YW. [Successful removal of displaced left atrial appendage occlusion device by double 14 F sheathes: a case report]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:817-818. [PMID: 35982016 DOI: 10.3760/cma.j.cn112148-20211007-00856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- W L Meng
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200092, China
| | - Y X Zheng
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200092, China
| | - Z Y Ren
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200092, China
| | - H T Yang
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200092, China
| | - S Li
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200092, China
| | - D D Zhao
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200092, China
| | - W Chen
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200092, China
| | - M Y Zhu
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200092, China
| | - W J Liu
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200092, China
| | - Y Zhang
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200092, China
| | - Y W Xu
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200092, China
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Zhu Y, Liu Y, Zhou K, Tian C, Aslam M, Zhang B, Liu W, Zou H. Overexpression of ZmEREBP60 enhances drought tolerance in maize. J Plant Physiol 2022; 275:153763. [PMID: 35839657 DOI: 10.1016/j.jplph.2022.153763] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 07/02/2022] [Accepted: 07/02/2022] [Indexed: 06/15/2023]
Abstract
Apetala2/ethylene response factor (AP2/ERF) family of transcription factors plays important roles in plant development and stress responses. However, few members of this family have been functionally and mechanistically characterised in maize. In this study, we characterised a member of the AP2/ERF transcription factor family, ZmEREBP60 from maize. Amino acid sequence alignment and phylogenetic analysis showed that ZmEREBP60 belongs to cluster I of the AP2/ERF family. qRT-PCR analysis indicated that ZmEREBP60 expression was highly induced by drought in the roots, coleoptiles, and leaves. Subcellular localisation analysis revealed that ZmEREBP60 was localised in the nucleus. Moreover, overexpression of ZmEREBP60 enhanced tolerance to drought stress while alleviating the drought-induced increase in H2O2 accumulation and malondialdehyde content in transgenic lines. Transcriptome analysis showed that ZmEREBP60 regulates the expression of genes involved in H2O2 catabolism, water deprivation response, and abscisic acid signalling pathway. Collectively, as a new member of the AP2/ERF transcription factor family in maize, ZmEREBP60 is a positive regulator of plant drought response.
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Affiliation(s)
- Yeqing Zhu
- College of Agriculture, Yangtze University, China
| | - Yue Liu
- College of Agriculture, Yangtze University, China
| | - Kaiming Zhou
- College of Agriculture, Yangtze University, China
| | - Congyan Tian
- College of Agriculture, Yangtze University, China
| | - Muhammad Aslam
- Department of Plant Breeding & Genetics, University of Agriculture, Faisalabad, Pakistan
| | | | - Weijuan Liu
- College of Agriculture, Yangtze University, China.
| | - Huawen Zou
- College of Agriculture, Yangtze University, China.
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Sun LX, Wu S, Zhang XW, Liu WJ, Zhang LJ. [Investigation on the growth factor regulatory network of dermal fibroblasts in mouse full-thickness skin defect wounds based on single-cell RNA sequencing]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:629-639. [PMID: 35899330 DOI: 10.3760/cma.j.cn501225-20220215-00029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To explore the heterogeneity and growth factor regulatory network of dermal fibroblasts (dFbs) in mouse full-thickness skin defect wounds based on single-cell RNA sequencing. Methods: The experimental research methods were adopted. The normal skin tissue from 5 healthy 8-week-old male C57BL/6 mice (the same mouse age, sex, and strain below) was harvested, and the wound tissue of another 5 mice with full-thickness skin defect on the back was harvested on post injury day (PID) 7. The cell suspension was obtained by digesting the tissue with collagenase D and DNase Ⅰ, sequencing library was constructed using 10x Genomics platform, and single-cell RNA sequencing was performed by Illumina Novaseq6000 sequencer. The gene expression matrices of cells in the two kinds of tissue were obtained by analysis of Seurat 3.0 program of software R4.1.1, and two-dimensional tSNE plots classified by cell group, cell source, and gene labeling of major cells in skin were used for visual display. According to the existing literature and the CellMarker database searching, the expression of marker genes in the gene expression matrices of cells in the two kinds of tissue was analyzed, and each cell group was numbered and defined. The gene expression matrices and cell clustering information were introduced into CellChat 1.1.3 program of software R4.1.1 to analyze the intercellular communication in the two kinds of tissue and the intercellular communication involving vascular endothelial growth factor (VEGF), platelet-derived growth factor (PDGF), epidermal growth factor (EGF), and fibroblast growth factor (FGF) signal pathways in the wound tissue, the relative contribution of each pair of FGF subtypes and FGF receptor (FGFR) subtypes (hereinafter referred to as FGF ligand receptor pairs) to FGF signal network in the two kinds of tissue, and the intercellular communication in the signal pathway of FGF ligand receptor pairs with the top 2 relative contributions in the two kinds of tissue. The normal skin tissue from one healthy mouse was harvested, and the wound tissue of one mouse with full-thickness skin defect on the back was harvested on PID 7. The multiple immunofluorescence staining was performed to detect the expression and distribution of FGF7 protein and its co-localized expression with dipeptidyl peptidase 4 (DPP4), stem cell antigen 1 (SCA1), smooth muscle actin (SMA), and PDGF receptor α (PDGFRα) protein. Results: Both the normal skin tissue of healthy mice and the wound tissue of full-thickness skin defected mice on PID 7 contained 25 cell groups, but the numbers of cells in each cell group between the two kinds of tissue were different. Genes PDGFRα, platelet endothelial cell adhesion molecule 1, lymphatic endothelial hyaluronic acid receptor 1, receptor protein tyrosine phosphatase C, keratin 10, and keratin 79 all had distinct distributions on two-dimensional tSNE plots, indicating specific cell groups respectively. The 25 cell groups were numbered by C0-C24 and divided into 9 dFb subgroups and 16 non-dFb groups. dFb subgroups included C0 as interstitial progenitor cells, C5 as adipose precursor cells, and C13 as contractile muscle cells related fibroblasts, etc. Non-dFb group included C3 as neutrophils, C8 as T cells, and C18 as erythrocytes, etc. Compared with that of the normal skin tissue of healthy mice, the intercellular communication in the wound tissue of full-thickness skin defected mice on PID 7 was more and denser, and the top 3 cell groups in intercellular communication intensity were dFb subgroups C0, C1, and C2, of which all communicated with other cell groups in the wound tissue. In the wound tissue of full-thickness skin defected mice on PID 7, VEGF signals were mainly sent by the dFb subgroup C0 and received by vascular related cell groups C19 and C21, PDGF signals were mainly sent by peripheral cells C14 and received by multiple dFb subgroups, EGF signals were mainly sent by keratinocyte subgroups C9 and C11 and received by the dFb subgroup C0, and the main sender and receiver of FGF signals were the dFb subgroup C6. In the relative contribution rank of FGF ligand receptor pairs to FGF signal network in the normal skin tissue of healthy mice and the wound tissue of full-thickness skin defected mice on PID 7, FGF7-FGFR1 was the top 1, and FGF7-FGFR2 or FGF10-FGFR1 was in the second place, respectively; compared with those in the normal skin tissue, there was more intercellular communication in FGF7-FGFR1 signal pathway, while the intercellular communication in FGF7-FGFR2 and FGF10-FGFR1 signal pathways decreased slightly or did not change significantly in the wound tissue; the intercellular communication in FGF7-FGFR1 signal pathway in the wound tissue was stronger than that in FGF7-FGFR2 or FGF10-FGFR1 signal pathway; in the two kinds of tissue, FGF7 signal was mainly sent by dFb subgroups C0, C1, and C2, and received by dFb subgroups C6 and C7. Compared with that in the normal skin tissue of healthy mouse, the expression of FGF7 protein was higher in the wound tissue of full-thickness skin defected mouse on PID 7; in the normal skin tissue, FGF7 protein was mainly expressed in the skin interstitium and also expressed in the white adipose tissue near the dermis layer; in the two kinds of tissue, FGF7 protein was co-localized with DPP4 and SCA1 proteins and expressed in the skin interstitium, co-localized with PDGFRα protein and expressed in dFbs, but was not co-localized with SMA protein, with more co-localized expression of FGF7 in the wound tissue than that in the normal skin tissue. Conclusions: In the process of wound healing of mouse full-thickness skin defect wound, dFbs are highly heterogeneous, act as potential major secretory or receiving cell populations of a variety of growth factors, and have a close and complex relationship with the growth factor signal pathways. FGF7-FGFR1 signal pathway is the main FGF signal pathway in the process of wound healing, which targets and regulates multiple dFb subgroups.
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Affiliation(s)
- L X Sun
- State Key Laboratory of Cell Stress Biology, School of Pharmacy, Xiamen University, Xiamen 361102, China
| | - S Wu
- State Key Laboratory of Cell Stress Biology, School of Pharmacy, Xiamen University, Xiamen 361102, China
| | - X W Zhang
- State Key Laboratory of Cell Stress Biology, School of Pharmacy, Xiamen University, Xiamen 361102, China
| | - W J Liu
- State Key Laboratory of Cell Stress Biology, School of Pharmacy, Xiamen University, Xiamen 361102, China
| | - L J Zhang
- State Key Laboratory of Cell Stress Biology, School of Pharmacy, Xiamen University, Xiamen 361102, China
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Liu WJ, Wang N, Fu Y, Song ZY. [Middle ear cholesterol granuloma due to foreign body: a case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:741-742. [PMID: 35725320 DOI: 10.3760/cma.j.cn115330-20220311-00106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- W J Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao 266035, China
| | - N Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao 266035, China
| | - Y Fu
- Department of Otorhinolaryngology Head and Neck Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao 266035, China
| | - Z Y Song
- Department of Otorhinolaryngology Head and Neck Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao 266035, China
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20
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Liu WJ, Liu DW. [Research advances on mesenchymal stem cell-derived extracellular vesicles in promoting angiogenesis of diabetic ulcers]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:393-399. [PMID: 35462521 DOI: 10.3760/cma.j.cn501120-20201207-00520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Extracellular vesicles are nanoparticles secreted by most eukaryotic cells and play important roles in material transport and information transmission between cells, involved in inflammation, angiogenesis, antigen presentation, cell apoptosis, cell differentiation, and other biological processes. The culture supernatant of mesenchymal stem cells is rich in extracellular vesicles, and the extracellular vesicles can regulate the formation of new blood vessels, a key step in wound healing and tissue repair. The persistence of diabetic ulcers is closely related to the blocked formation of wound vascular network. This article reviews the role of extracellular vesicles derived from mesenchymal stem cells in promoting angiogenesis of diabetic ulcers, in order to provide a new idea for the treatment of diabetic ulcers.
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Affiliation(s)
- W J Liu
- Department of Burns and Plastic Surgery, Jiangxi General Hospital of Armed Police, Nanchang 330030,China
| | - D W Liu
- Department of Burns, the First Affiliated Hospital of Nanchang University, Nanchang 330006, China
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Xu GY, Zhu HS, Liu WJ, Zeng ZW, Wang JX, Han TW, Zhou SH, Liu J, Xiao FZ. [Incidence of leptospirosis in Fujian province, 2015-2020]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:548-553. [PMID: 35443311 DOI: 10.3760/cma.j.cn112338-20210819-00664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To analyze the incidence of leptospirosis in Fujian province from 2015 to 2020 and provide the scientific evidences for the risk assessment, prevention and control of leptospirosis. Methods: The incidence data of leptospirosis in Fujian during 2015-2020 were collected from China Information System for Disease Control and Prevention for a descriptive analysis, and software ArcGIS 10.3.1 was used for spatial autocorrelation analysis, and rats were captured in 17 surveillance areas during the same period, and the rat organs were collected for pathogen culture, the level of Leptospira antibody was detected in serum samples of rats, healthy population and the serum samples of patients sent by the hospitals. The infection status of Leptospira in human and rats were analyzed. Results: The incidence of leptospirosis in Fujian showed a downward trend from 2015 to 2020. A total of 176 cases of leptospirosis were reported. There were obvious seasonality and bimodal distribution. The majority of cases were farmers, accounting for 49.43% (87/176). Most cases were aged 30-69 years (85.80%, 151/176). The male to female ratio of the cases was 3.51∶1 (137∶39). Spatial autocorrelation analysis showed that leptospirosis had high or low clustering areas. From 2015 to 2020, the average capture rate of rats in 17 surveillance areas was 6.96% (1 519/21 838), Rattus losea, Rattus flavipectus and Niviventer fulvescens were the main species. The average positive rate of Leptospira antibody in rats was 28.64% (252/880). Java and Autumnalis were the predominant serogroups, accounting for 56.75% (143/252) and 17.46% (44/252), respectively. The average positive rate of Leptospira antibody in healthy population was 16.13% (254/1 575), and Autumnalis and Australis were the predominant serogroups, accounting for 71.65% (182/254). The confirmation rate of leptospirosis in patient serum samples sent by the hospitals was 2.23% (188/8 431), Autumnalis (56.38%, 106/188) and Hebdomadis (19.68%, 37/188) were the major serogroups. Conclusions: The incidence of leptospirosis in Fujian showed a downward trend from 2015 to 2020, there were obvious area clustering and seasonality. The high clustering areas were mainly distributed in northern, western and central Fujian. Java and Autumnalis were the predominant serogroups in rats. The infection rate in healthy population decreased year by year. Autumnalis and Hebdomadis were the main serogroups in population in Fujian.
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Affiliation(s)
- G Y Xu
- Fujian Provincial Center for Disease Control and Prevention/Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350012, China College of Public Health, Fujian Medical University, Fuzhou 350122, China
| | - H S Zhu
- Fujian Provincial Center for Disease Control and Prevention/Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350012, China
| | - W J Liu
- Fujian Provincial Center for Disease Control and Prevention/Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350012, China
| | - Z W Zeng
- Fujian Provincial Center for Disease Control and Prevention/Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350012, China
| | - J X Wang
- Fujian Provincial Center for Disease Control and Prevention/Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350012, China
| | - T W Han
- Fujian Provincial Center for Disease Control and Prevention/Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350012, China
| | - S H Zhou
- Fujian Provincial Center for Disease Control and Prevention/Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350012, China
| | - J Liu
- Fujian Provincial Center for Disease Control and Prevention/Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350012, China
| | - F Z Xiao
- Fujian Provincial Center for Disease Control and Prevention/Fujian Provincial Key Laboratory of Zoonosis Research, Fuzhou 350012, China College of Public Health, Fujian Medical University, Fuzhou 350122, China
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Wu P, Zhou LN, Xing Y, Sun HP, Wan LJ, Zhou CY, Zhang DD, Zhou XF, Zhang H, Chen MY, Wang YF, Wang NN, Liu WJ, Xu TL, Fu YW, Liu LJ, Yuan D, Chen M, Wang H. [Establishment of morphological reference values for the differential count of white blood cells in peripheral blood smear, as well as nucleated cells and megakaryocytes in bone marrow smear]. Zhonghua Yi Xue Za Zhi 2022; 102:506-512. [PMID: 35184504 DOI: 10.3760/cma.j.cn112137-20210819-01887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To establish the morphological reference values for the differential count of white blood cells in peripheral blood smear as well as nucleated cells and megakaryocytes in bone marrow smear. Methods: From April 2012 to June 2020, 4 221 healthy donors for hematopoietic stem cell transplantation in Hebei Yanda Lu Daopei Hospital were selected. The median age was 36 (3-72) years old, including 2 520 males and 1 701 females. They were divided into four groups according to age: children group, with age≤14 years old [n=334, 11 (3-14) years old], youth group, with age >14 years old and <45 years old [n=2 855, 33 (15-44) years old], middle-aged adult group, with age ≥45 years old and < 60 years old [n=929, 49 (45-59) years old], and older adult group, with age ≥60 years old [n=103, 62 (60-72) years old]. Gender subgroups were established in each age group. According to different hematopoietic characteristics, the children group were divided into two subgroups: children group 1 [n=48, 6 (3-7) years old] and children group 2 [n=286, 11 (8-14) years old]. According to the clinical routine, 100 white blood cells in peripheral blood, 200 nucleated cells in bone marrow, and cell numbers/4.5 cm2 for megakaryocytes were classified and counted. The results of cell count in different age and gender groups were compared, and the reference values of morphological classification were established for different groups with statistical or clinical significance. Results: Due to the existence of statistically significant differences between children and adult groups and different gender subgroups in adults (all P<0.05), the reference values were established for children group and adult gender subgroups. The counts of segmented neutrophils and lymphocytes in peripheral blood were 46.65(43.97-49.32)% and 44.00(10.60-65.10)% in children group 1, 50.73(49.50-51.96)% and 39.55 (38.36-40.74)% in children group 2, and 57.00 (39.00-75.23) % and 33.00 (17.00-52.00) % in adult group, respectively. Bone marrow segmented neutrophils, orthochromatic erythroblasts, and mature lymphocytes were 11.54 (10.68-12.41)%, 14.20 (13.19-15.21)%, and 23.99 (22.06-25.92)% in children group 1, 12.50 (7.00-21.50)%, 15.00(9.50-25.50)%, and 21.02 (20.24-21.81)% in children group 2, 13.50 (7.50-21.00)%, 16.50 (10.50-26.00)%, and 15.50 (7.50-26.00)% in adult male group, and 14.50 (8.00-24.50)%, 14.50 (9.00-23.00)%, and 17.50 (8.50-29.00)% in adult female group, respectively. The myelopoiesis/erythropoiesis ratio in children group, adult male group and adult female group was 1.86∶1 (1.14∶1-3.23∶1), 1.96∶1 (1.12∶1-3.19∶1), 2.22∶1 (1.30∶1-3.69∶1), respectively. The numbers of granular megakaryocytes and thromocytogenic megakaryocytes were 138 (25-567) cells/4.5cm2 and 86 (13-328) cells/4.5 cm2 in children group, and 92 (13-338) cells/4.5 cm2 and 38 (3-162) cells/4.5 cm2 in adult group, respectively. Conclusion: The morphological reference values for the differential count of white blood cells in peripheral blood smear as well as nucleated cells and megakaryocytes in bone marrow smear are successfully established, which is helpful to improve the application of morphological examination in disease screening, diagnosis and monitoring.
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Affiliation(s)
- P Wu
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - L N Zhou
- Department of Clinical Laboratory, Peking University First Hospital, Beijing 100034, China
| | - Y Xing
- Department of Clinical Laboratory, Peking University First Hospital, Beijing 100034, China
| | - H P Sun
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - L J Wan
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - C Y Zhou
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - D D Zhang
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - X F Zhou
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - H Zhang
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - M Y Chen
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - Y F Wang
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - N N Wang
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - W J Liu
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - T L Xu
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - Y W Fu
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - L J Liu
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - D Yuan
- Department of Clinical Laboratory, Peking University First Hospital, Beijing 100034, China
| | - M Chen
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - H Wang
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
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Abstract
Objective: To investigate the application of electric tube stapler in laparoscopic colorectal tumor surgery. Methods: A descriptive case series study was conducted. Clinical data of patients who underwent laparoscopic colorectal surgery in Peking Union Medical College Hospital in August 2021 using domestic electric tube stapler were collected to analyze the occurrence of postoperative anastomotic leakage, anastomotic bleeding and other complications as well as postoperative intestinal function recovery. Results: A total of 11 patients with colorectal tumor were enrolled in this study, including 8 males and 3 females. Eight patients underwent laparoscopic low anterior resection (1 patient underwent protective ileostomy), and three patients underwent laparoscopic sigmoid carcinoma radical resection. During operation, power system failure of stapler occurred in 1 patient, and the replacement manual device was used to complete the anastomosis. No anastomotic leakage or bleeding occurred in the cohort of patients. There was no conversion to laparotomy or conventional anastomosis. One patient developed acute myocardial infarction 2 days after surgery. The average time to the first flatus after surgery was (2.4±0.8) days and the average length of hospital stay was (10.0±6.1) days. Conclusions: The application of electric tube stapler in laparoscopic colorectal tumor surgery has many advantages, such as safe and effective anastomosis, low morbidity of postoperative complications, and rapid recovery of intestinal function. Domestic electric tube stapler can be applied in minimally invasive surgery for colorectal tumor.
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Affiliation(s)
- W J Liu
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y H Li
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - G L Lin
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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Chang L, Zhang X, Zhang YP, Qin DY, Liu WJ, Chai B, Yao J. [PD-1 is associated with CD8(+)T lymphocyte dysfunction in patients with acute and chronic liver failure]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:1101-1105. [PMID: 34933430 DOI: 10.3760/cma.j.cn501113-20200204-00028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To explore whether peripheral blood CD8(+)T lymphocyte dysfunction is correlated with the programmed death receptor-1 (PD-1) expression in patients with acute-on-chronic liver failure (HBV-ACLF). Methods: Peripheral blood mononuclear cells (PBMC) were collected from patients with HBV-ACLF and healthy controls. CD8(+)T lymphocytes number and PD-1 expression condition in CD8(+)T lymphocytes were detected by flow cytometry. CD8(+)T lymphocytes isolated from peripheral blood of HBV-ACLF patients were further cultured in vitro. One group was added with PD-L1-IgG fusion protein (ACLF+PD-1 group), and the other group was added with IgG fusion protein (ACLF group). Proliferation ability (ki67), cell viability (CD69), and secretion ability of effector cytokines (IL-2, IFN-γ, TNF-α) were analyzed. Results: 30 cases with HBV-ACLF and healthy controls were enrolled. CD8(+)T lymphocytes absolute number was significantly lower in the peripheral blood of patients with ACLF group (333.88 ± 147.74)/μl than healthy controls (872.50 ± 206.64)/μl (P < 0.001). PD-1 expression in peripheral blood CD8(+)T lymphocytes were significantly increased in ACLF group (13.33% ± 2.52%), (P = 0.027) than healthy controls (7.02% ± 2.12%). In in vitro culture, compared with healthy controls, the peripheral blood CD8(+)T lymphocytes cell viability (CD69), proliferation ability (ki67) (all P < 0.001), and the level of cytokine production (IL-2, IFN-γ, TNF-α) (all P < 0.05) were equally weakened in patients with ACLF group. Compared with ACLF group, CD8(+)T cell viability (CD69), proliferation ability (KI67) (all P < 0.05), and the level of cytokine production were weakened in ACLF+PD-1 group (all P < 0.05). Conclusion: HBV-ACLF patients have CD8(+)T lymphocyte dysfunction. Therefore, PD-1 may have correlation in the regulation of CD8(+)T lymphocyte dysfunction in ACLF patients.
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Affiliation(s)
- L Chang
- Department of Gastroenterology, Shanxi Baiqiuen hospital, Taiyuan 030032, China
| | - X Zhang
- Department of ultrasound Shanxi Children's Hospital, Taiyuan 030000, China
| | - Y P Zhang
- Department of Gastroenterology, Shanxi Baiqiuen hospital, Taiyuan 030032, China
| | - D Y Qin
- Department of Gastroenterology, Shanxi Baiqiuen hospital, Taiyuan 030032, China
| | - W J Liu
- Department of Gastroenterology, Shanxi Baiqiuen hospital, Taiyuan 030032, China
| | - B Chai
- Department of Gastroenterology, Shanxi Baiqiuen hospital, Taiyuan 030032, China
| | - J Yao
- Department of Gastroenterology, Shanxi Baiqiuen hospital, Taiyuan 030032, China Postdoctoral Workstation, The First Affiliated Hospital of Shanxi Medical University, Taiyuan 030031, China
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25
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Han S, Xia H, Lu YM, Liu WJ, Xu WY, Fang M, Cao PJ, Zhu DL. UV response characteristics of mixed-phase MgZnO thin films with different structure distributions, high I uv/I dark ratios, and fast speed MgZnO UV detectors with tunneling breakdown mechanisms. Nanotechnology 2021; 32:235202. [PMID: 33724929 DOI: 10.1088/1361-6528/abe824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
High-performance ultraviolet (UV) detectors with both high responses and fast speeds are hard to make on homogeneous crystal semiconductor materials. Here, the UV response characteristics of mixed-phase MgZnO thin films with different internal structure distributions are studied. The mixed-phase MgZnO-based detector with the given crystal composition has a high response at both deep UV light (96 A W-1 at 240 nm) and near UV light (80 A W-1 at 335 nm). Meanwhile, because of the quasi-tunneling breakdown mechanism within the device, the high-response UV detector also shows a fast response speed (tr = 0.11 μs) and recovery speed (td1 = 26 μs) at deep UV light, which is much faster than both low-response mixed-phase MgZnO-based UV detectors with other structure constitutions and reported high-response UV devices on homogenous crystal materials. The Idark of the device is just 4.27 pA under a 5 V bias voltage, so the signal-to-noise ratio of the device reached 23852 at 5.5 uW cm-2 235 nm UV light. The new quasi-tunneling breakdown mechanism is observed in some mixed-phase MgZnO thin films that contain both c-MgZnO and h-MgZnO parts, which introduce a high response, signal-to-noise ratio, and fast speed into mixed-phase MgZnO-based UV detectors at weak deep UV light.
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Affiliation(s)
- Shun Han
- College of Materials Science and Engineering, Shenzhen University, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen Key Laboratory of Special Functional Materials, Shenzhen 518060, People's Republic of China
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Gong YH, Zhu DN, Wang YQ, Li Y, Song Y, Zou XN, Liu WJ, Xu YC. [Etiological survey and traceability analysis of five cases of typhoid fever during the same period in Yantai city]. Zhonghua Yu Fang Yi Xue Za Zhi 2021; 55:78-83. [PMID: 33455136 DOI: 10.3760/cma.j.cn112150-20200624-00922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the etiological characteristics and molecular epidemiological correlation of five cases of typhoid fever during the same period in yantai city. Methods: Six S. Typhis strains were isolated from 5 typhoid patients and epidemiological samples in Yantai city in 2018. The onset time of the cases were from May 26, 2018 to July 24, 2018, distributed in Shuidao Town of Muping District, Dengzhou Street of Penglai District, Donglai Street of Longkou District, Wenhua Street of Muping District and Fulaishan Street of zhifu District. S. Typhis strains were analyzed by conventional bacterial isolation method and XbaⅠ/BlnⅠ double-enzyme digestion pulse-field gel electrophoresis (PFGE). Meanwhile, ViaB virulence gene detection and 27 common antibiotics sensitivity tests were conducted to study the etiology of S. Typhis. Results: Six strains of S. Typhi were isolated from 5 patients and the domestic egg of one patient, which were divided into 4 PFGE patterns by PFGE-XbaⅠ and PFGE-BlnⅠ and among which 3 strains had the same PFGE patterns.One multi-drug resistant strain (foreign patient), one single-drug resistant strain (patient with a history of provincial retention), and one completely sensitive strain were detected. The three strains of the same PFGE pattern exhibit the same drug-sensitive phenotype which were intermediate against aminoglycosides and quinolones and susceptibility against the other antibiotics.All of the strains carried the ViaB virulence factor except the strain from the foreign patient. Conclusion: Local S. Typhi is susceptibility or intermediate against antibiotics commonly used in clinic.Sporadic cases of typhoid fever and typhoid imported infections still need attention.
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Affiliation(s)
- Y H Gong
- Microbiological Laboratory, Yantai Center for Disease Control and Prevention, Yantai 264000, China
| | - D N Zhu
- Microbiological Laboratory, Yantai Center for Disease Control and Prevention, Yantai 264000, China
| | - Y Q Wang
- Microbiological Laboratory, Yantai Center for Disease Control and Prevention, Yantai 264000, China
| | - Y Li
- Microbiological Laboratory, Yantai Center for Disease Control and Prevention, Yantai 264000, China
| | - Y Song
- Microbiological Laboratory, Yantai Center for Disease Control and Prevention, Yantai 264000, China
| | - X N Zou
- Microbiological Laboratory, Yantai Center for Disease Control and Prevention, Yantai 264000, China
| | - W J Liu
- Microbiological Laboratory, Yantai Center for Disease Control and Prevention, Yantai 264000, China
| | - Y C Xu
- Microbiological Laboratory, Yantai Center for Disease Control and Prevention, Yantai 264000, China
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Gao F, Lv X, Mo Z, Ma J, Zhang Q, Yang G, Liu W, Li Q, Zhou J, Bao Y, Jia W. Efficacy and safety of polyethylene glycol loxenatide as add-on to metformin in patients with type 2 diabetes: A multicentre, randomized, double-blind, placebo-controlled, phase 3b trial. Diabetes Obes Metab 2020; 22:2375-2383. [PMID: 32744358 DOI: 10.1111/dom.14163] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 07/16/2020] [Accepted: 07/29/2020] [Indexed: 01/01/2023]
Abstract
AIM To assess the efficacy and safety of polyethylene glycol loxenatide (PEX168), a new glucagon-like peptide-1 receptor agonist, as an add-on to metformin therapy in Chinese patients with type 2 diabetes (T2D). MATERIALS AND METHODS This was a multicentre, randomized, double-blind, placebo-controlled phase 3b trial. After metformin monotherapy (≥1500 mg/day) for 8 weeks or more, patients with uncontrolled T2D (HbA1c of 7.0%-10.5%) from 44 sites were randomized (1:1:1) to metformin + placebo, metformin + PEX168 100 μg, and metformin + PEX168 200 μg. The core treatment period lasted for 24 weeks, followed by a 28-week extension period. The primary endpoint was the change in HbA1c levels at week 24. The main secondary endpoint was the proportion of patients with an HbA1c of less than 7.0% at week 24. RESULTS The least-square mean (standard error) change in HbA1c levels was significantly greater (P < .001 for superiority) in the PEX168 groups (-1.16% [0.08%] and -1.14% [0.08%] with 100 and 200 μg, respectively) than in the placebo group (0.35% [0.08%]). The proportion of patients with an HbA1c of less than 7.0% at week 24 was significantly higher in the PEX168 100 μg (37.4%) and PEX168 200 μg (40.6%) groups than in the placebo group (16.8%; both P < .001). The gastrointestinal reactions were mild; the risks of hypoglycaemia and weight gain did not increase. Anti-PEX168 antibodies were noted in less than 2% of patients. No treatment-emergent serious adverse events occurred. CONCLUSION The subcutaneous injection of PEX168 once a week can effectively, continuously and safely improve HbA1c levels in patients with T2D when combined with metformin.
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Affiliation(s)
- Fei Gao
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes, Shanghai Key Clinical Center for Metabolic Disease, Shanghai, China
| | - Xiaofeng Lv
- Department of Endocrinology and Metabolism, General Hospital of Beijing Military Region, Beijing, China
| | - Zhaohui Mo
- Department of Endocrinology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Jianhua Ma
- Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Qiu Zhang
- Department of Endocrinology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Gangyi Yang
- Department of Endocrinology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, China
| | - Weijuan Liu
- Department of Endocrinology, Chongqing Three Gorges Central Hospital, Chongqing, China
| | - Quanmin Li
- Department of Endocrinology, The PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Jian Zhou
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes, Shanghai Key Clinical Center for Metabolic Disease, Shanghai, China
| | - Yuqian Bao
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes, Shanghai Key Clinical Center for Metabolic Disease, Shanghai, China
| | - Weiping Jia
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Clinical Center for Diabetes, Shanghai Diabetes Institute, Shanghai Key Laboratory of Diabetes, Shanghai Key Clinical Center for Metabolic Disease, Shanghai, China
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Liu WJ, Fan Y, Chen XW. [Research on the psychological status of patients with microtia and their families]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:878-882. [PMID: 32911895 DOI: 10.3760/cma.j.cn115330-20200315-00198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- W J Liu
- Department of Otorhinolaryngology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y Fan
- Department of Otorhinolaryngology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - X W Chen
- Department of Otorhinolaryngology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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Zhang GF, Liu WJ, Wang D, Duan JX, Li XQ. [Meta-analysis of clinical effects of microskin grafting and Meek microskin grafting in repairing extensively deep burn wounds]. Zhonghua Shao Shang Za Zhi 2020; 36:560-567. [PMID: 32842403 DOI: 10.3760/cma.j.cn501120-20190521-00249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To systematically evaluate the clinical effects of microskin grafting and Meek microskin grafting in repairing extensively deep burn wounds using meta-analysis. Methods: Foreign language databases including PubMed and Cochrane Library were searched with the terms of " Meek micrografting, burn" , and Chinese databases including Chinese Journal Full-Text Database, Chinese Biomedical Database, VIP database, and Wanfang Data were searched with the terms in Chinese version of ", Meek," to retrieve the publicly published randomized controlled trials on the microskin grafting and Meek microskin grafting in repairing extensively deep burn wounds from the establishment of each database to March 20, 2019. The outcome indexes included the survival rate of skin graft, primary healing rate, operation time, and surgical treatment cost after the first operation, as well as the wound healing time and length of hospital stay. RevMan 5.3 and Stata 14.0 statistical software were used to conduct a meta-analysis of eligible studies. Results: A total of 821 patients with extensively deep burns were included in 15 studies, including 410 patients in microskin group who received microskin grafting and 411 patients in Meek microskin group who received Meek microskin grafting. The bias risks of the 15 studies included were uncertain. Compared with those of microskin group, the survival rate of skin graft and primary healing rate of patients in Meek microskin group were significantly increased, with relative risks of 0.76 and 0.66 (95% confidence interval=0.66-0.88, 0.50-0.88, P<0.01), the surgical treatment cost was significantly reduced, with a standardized mean difference of 3.19 (95% confidence interval=1.36-5.01, P<0.01), and the operation time, wound healing time, and length of hospital stay were significantly shortened, with standardized mean differences of 6.05, 2.39, and 2.35 (95% confidence interval=3.66-8.44, 1.43-3.35, 2.03-2.68, P<0.01). Subgroup analysis showed that microskin grafting combined with allogenic skin graft might be a heterogeneous source of operation time. Sensitivity analysis showed that the combined effect size was stable in the operation time, surgical treatment cost, and wound healing time. There was no publication bias in the survival rate of skin graft, operation time, wound healing time, and length of hospital stay (P>0.05), while the primary healing rate and surgical treatment cost had publication bias (P<0.01). Conclusions: Compared with microskin grafting, Meek microskin grafting improves the rates of skin graft survival and primary healing, shortens operation time, wound healing time, and length of hospital stay, and reduces the treatment cost in treating extensively deep burn wounds.
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Affiliation(s)
- G F Zhang
- Department of Burns, the Second Affiliated Hospital of Kunming Medical University, Kunming 650101, China
| | - W J Liu
- Department of Burns, the Second Affiliated Hospital of Kunming Medical University, Kunming 650101, China
| | - D Wang
- Department of Burns, the Second Affiliated Hospital of Kunming Medical University, Kunming 650101, China
| | - J X Duan
- Department of Burns, the Second Affiliated Hospital of Kunming Medical University, Kunming 650101, China
| | - X Q Li
- Department of Burns, the Second Affiliated Hospital of Kunming Medical University, Kunming 650101, China
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30
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Wang W, Yao J, Guo X, Guo Y, Yan C, Liu K, Zhang Y, Wang X, Li H, Wen Z, Wang X, Li S, Xiao X, Liu W, Li Z, Zhang L, Shao S, Ye S, Qin G, Li Y, Li F, Zhang X, Li X, Peng Y, Deng H, Xu X, Zhou L, Huang Y, Cao M, Xia X, Shi M, Dou J, Yuan J. Efficacy and safety of DBPR108 monotherapy in patients with type 2 diabetes: a 12-week, randomized, double-blind, placebo-controlled, phase II clinical trial. Curr Med Res Opin 2020; 36:1107-1115. [PMID: 32338063 DOI: 10.1080/03007995.2020.1761311] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Objective: DBPR108, a novel dipeptidyl-peptidase-4 inhibitor, has shown great antihyperglycemic effect in animal models. This study was to evaluate the efficacy and safety of DBPR108 monotherapy in type 2 diabetes mellitus (T2DM).Methods: This was a 12-week, double-blind, placebo-controlled phase II clinical trial. The newly diagnosed or inadequately controlled untreated T2DM patients were randomized to receive 50, 100, 200 mg DBPR108 or placebo in a ratio of 1:1:1:1. The primary efficacy outcome was HbA1c change from baseline to week 12. Relevant secondary efficacy parameters and safety were assessed. The clinical trial registration is NCT04124484.Results: Overall, 271 of the 276 randomized patients, who received 50 mg (n = 68), 100 mg (n = 67), 200 mg (n = 69) DBPR108 or placebo (n = 67), were included in full analysis set. At week 12, HbA1c change from baseline was -0.04 ± 0.77 in placebo group, -0.51 ± 0.71, -0.75 ± 0.73, and -0.57 ± 0.78 (%, p < .001 vs. placebo) in 50, 100, and 200 mg DBPR108 groups, respectively. Since week 4, DBPR108 monotherapy resulted in significant improvements in secondary efficacy parameters. At end of 12-week treatment, the goal of HbA1c ≤7% was achieved in 29.85, 58.82, 55.22, and 47.83% of the patients in placebo, 50, 100, and 200 mg DBPR108 groups, respectively. The incidence of adverse events did not show significant difference between DBPR108 and placebo except mild hypoglycemia in DBPR108 200 mg group.Conclusions: The study results support DBPR108 100 mg once daily as the primary dosing regimen for T2DM patients in phase III development program.
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Affiliation(s)
- Wei Wang
- Peking University First Hospital, Beijing, China
| | - Jun Yao
- Peking University First Hospital, Beijing, China
| | - Xiaohui Guo
- Peking University First Hospital, Beijing, China
| | - Yushan Guo
- Affiliated Hospital of Beihua University, Jilin, China
| | - Chaoli Yan
- The Affiliated Hospital of Inner Mongolia Medical University, Inner Mongolia, China
| | - Kuanzhi Liu
- The Third Hospital of Hebei Medical University, Hebei, China
| | - Ying Zhang
- The Third Affiliated Hospital of Guangzhou Medical University, Guangdong, China
| | - Xiaoyue Wang
- The First People's Hospital of Yueyang, Hunan, China
| | - Hongmei Li
- Emergency General Hospital, Beijing, China
| | | | - Xinling Wang
- Xinjiang Uiger Municipal People's Hospital, Xinjiang, China
| | - Shuangqing Li
- West China Hospital, Sichuan University, Sichuan, China
| | - Xinhua Xiao
- Peking Union Medical College Hospital, Beijing, China
| | - Weijuan Liu
- Chongqing Three Gorges Central Hospital, Chongqing, China
| | - Ziling Li
- Inner Mongolia Baogang Hospital, Inner Mongolia, China
| | - Lihui Zhang
- The second Hospital of Hebei Medical University, Hebei, China
| | - Shiying Shao
- Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
| | | | - Guijun Qin
- The First Affiliated Hospital of Zhengzhou University, Henan, China
| | - Yiming Li
- Huashan Hospital Affiliated to Fudan University, Shanghai, China
| | - Feng Li
- Jining First People's Hospital, Shandong, China
| | - Xiaomei Zhang
- The First Affiliated Hospital of Bengbu Medical College, Anhui, China
| | | | | | | | - Xiangjin Xu
- 900 Hospital of the Joint Logistics Support Force of Chinese PLA, Fujian, China
| | | | - Yanli Huang
- CSPC Zhongqi Pharmaceutical Technology (Shijiazhuang) Co, Ltd, Hebei, China
| | - Mengya Cao
- CSPC Zhongqi Pharmaceutical Technology (Shijiazhuang) Co, Ltd, Hebei, China
| | - Xuefang Xia
- CSPC Zhongqi Pharmaceutical Technology (Shijiazhuang) Co, Ltd, Hebei, China
| | - Mingbiao Shi
- CSPC Zhongqi Pharmaceutical Technology (Shijiazhuang) Co, Ltd, Hebei, China
| | - Jing Dou
- CSPC Zhongqi Pharmaceutical Technology (Shijiazhuang) Co, Ltd, Hebei, China
| | - Jing Yuan
- CSPC Zhongqi Pharmaceutical Technology (Shijiazhuang) Co, Ltd, Hebei, China
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Liu L, Han T, Liu W, Han G, Di P, Yu X, Yan J, Zhang A. Thr420 and Ser454 of ZmCCaMK play a crucial role in brassinosteroid-induced antioxidant defense in maize. Biochem Biophys Res Commun 2020; 525:537-542. [PMID: 32113680 DOI: 10.1016/j.bbrc.2020.02.078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 02/12/2020] [Indexed: 12/15/2022]
Abstract
Calcium/calmodulin-dependent protein kinase (CCaMK) has been shown to play important roles in brassinosteroid (BR)-induced antioxidant defense and enhancing the tolerance of plants to drought stress. The autophosphorylation of CCaMK is a key step for the activation of CCaMK, thus promoting substrate phosphorylation. However, how CCaMK autophosphorylation function in BR-induced antioxidant defense is not known yet. Here, seven potential autophosphorylation sites of ZmCCaMK were identified using mass spectroscopy (liquid chromatography-tandem mass spectrometry [LC-MS/MS]) analysis. The transient gene expression analysis in maize protoplasts showed that Thr420 and Ser454 of ZmCCaMK were important for BR-induced antioxidant defense. Furthermore, Thr420 and Ser454 of ZmCCaMK were crucial for improving drought tolerance and alleviating drought induced oxidative damage of plants via overexpressing various mutant versions of ZmCCaMK in tobacco (Nicotiana tabacum). Mutations of Thr420 and Ser454 in ZmCCaMK substantially blocked the autophosphorylation and substrate phosphorylation of ZmCCaMK in vitro. Taken together, our results demonstrate that Thr420 and Ser454 of ZmCCaMK are crucial for BR-induced antioxidant defense and drought tolerance through modulating the autophosphorylation and substrate phosphorylation activities of ZmCCaMK.
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Affiliation(s)
- Lei Liu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Tong Han
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Weijuan Liu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Gaoqiang Han
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Pengcheng Di
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Xiaoyun Yu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Jingwei Yan
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China
| | - Aying Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China; National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, Jiangsu, 210095, China.
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Yang QQ, Wang SL, Liu WJ, Yang YW, Jiang SQ. Spatial distribution of perfluoroalkyl acids (PFAAs) and their precursors and conversion of precursors in seawater deeply affected by a city in China. Ecotoxicol Environ Saf 2020; 194:110404. [PMID: 32146197 DOI: 10.1016/j.ecoenv.2020.110404] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 02/25/2020] [Accepted: 02/27/2020] [Indexed: 06/10/2023]
Abstract
Conversion of perfluoroalkyl acid (PFAA) precursors in the environment has been a hotspot research in recent years. This study firstly determined the spatial distribution of PFAAs and their precursors including 8:2 fluorotelomer unsaturated acid (8:2 FTUCA), perfluorooctane sulfoneamide (FOSA), and diperfluorooctane sulfonamido ethanol-based phosphate (di-SAmPAP), then investigated the conversion of the potential precursors in the seawater and sewage treatment plants (STPs) effluents. The results indicated that the target pollutants showed a typical concentration gradient from nearshore to offshore. And the obviously increased concentration of perfluorinated carboxylic acids (△[PFCAs]) after oxidation treatment can verify the existence of PFAA precursors in the seawater and STP effluents. The concentrations of PFCAs with carbon atom numbers 4-9 (PFCAC4-C9) revealed the most increase. Moreover, the levels of △[PFCAs] and the ratios of △[PFCAs] to their concentration before oxidation (△[PFCA]/[PFCA]before oxidation) indicated obvious spatial variations in the seawater and STP effluents. The higher levels of △[PFCAC4-C12] and the lower ratios of ∑△[PFCAC4-C12]/∑[PFAA]before oxidation were observed in the STP effluents, which implied that precursors might be decomposed during the sewage treatment process. These results suggested the STP effluents might have an important effect on the PFAAs levels of seawater.
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Affiliation(s)
- Q Q Yang
- School of Geography and Tourism, Qufu Normal University, Rizhao, 276826, China
| | - S L Wang
- School of Life Science, Qufu Normal University, Qufu, 273165, China
| | - W J Liu
- School of Life Science, Qufu Normal University, Qufu, 273165, China
| | - Y W Yang
- School of Life Science, Qufu Normal University, Qufu, 273165, China.
| | - S Q Jiang
- Changshushi Middle School, Changshu, 215500, China
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Zhuang GH, Shen MW, Zeng LX, Mi BB, Chen FY, Liu WJ, Pei LL, Qi X, Li C. [WITHDRAWN: Potential false-positive rate among the 'asymptomatic infected individuals' in close contacts of COVID-19 patients]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:485-488. [PMID: 32133832 DOI: 10.3760/cma.j.cn112338-20200221-00144] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Editor office’s response for Ahead of Print article withdrawn The article “Potential false-positive rate among the ‘asymptomatic infected individuals’ in close contacts of COVID-19 patients” was under strong discussion after pre-published. Questions from the readers mainly focused on the article’s results and conclusions were depended on theoretical deduction, but not the field epidemiology data and further researches were needed to prove the current theory. Based on previous discussions, the article was decided to be offline by the editorial board from the pre-publish lists. Objective: As the prevention and control of COVID-19continues to advance, the active nucleic acid test screening in the close contacts of the patients has been carrying out in many parts of China. However, the false-positive rate of positive results in the screening has not been reported up to now. But to clearify the false-positive rate during screening is important in COVID-19 control and prevention. Methods: Point values and reasonable ranges of the indicators which impact the false-positive rate of positive results were estimated based on the information available to us at present. The false-positive rate of positive results in the active screening was deduced, and univariate and multivariate-probabilistic sensitivity analyses were performed to understand the robustness of the findings. Results: When the infection rate of the close contacts and the sensitivity and specificity of reported results were taken as the point estimates, the positive predictive value of the active screening was only 19.67%, in contrast, the false-positive rate of positive results was 80.33%. The multivariate-probabilistic sensitivity analysis results supported the base-case findings, with a 75% probability for the false-positive rate of positive results over 47%. Conclusions: In the close contacts of COVID-19 patients, nearly half or even more of the 'asymptomatic infected individuals' reported in the active nucleic acid test screening might be false positives.
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Affiliation(s)
- G H Zhuang
- Department of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
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Mei X, Chen Y, Gan D, Chen Y, Wang L, Cao Y, Wu Z, Liu W, Zhao C, Lin M, Yang T, Hu J. Effect of nucleolin on adriamycin resistance via the regulation of B-cell lymphoma 2 expression in Burkitt's lymphoma cells. J Cell Physiol 2019; 234:22666-22674. [PMID: 31127617 PMCID: PMC6771757 DOI: 10.1002/jcp.28833] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 04/24/2019] [Accepted: 04/30/2019] [Indexed: 01/26/2023]
Abstract
Nucleolin (NCL, C23) is an important nucleocytoplasmic multifunctional protein. Due to its multifaceted profile and high expression in cancer, NCL is considered to be a marker of drug resistance associated with chemotherapy. However, the biochemical mechanisms in which NCL suppresses drug sensitivity in several cancers have yet to be fully elucidated. This study aims to explore the effect of NCL on drug sensitivity and its potential mechanism in CA46 Burkitt's lymphoma (BL) cells. CA46 BL cells were transfected with lentiviruses carrying the NCL gene (CA46-NCL-overexpression, CA46-NCL-OE), or shRNA sequences that target the endogenous NCL gene (CA46-NCL-knockdown, CA46-NCL-KD). Adriamycin (ADM) IC50 levels for CA46-NCL-overexpressed (OE), CA46-NCL-OE control (OEC), CA46-NCL-knockdown (KD), and CA46-NCL-KD control (KDC) cells were 0.68 ± 0.06 μg/ml, 0.68 ± 0.06 μg/ml, 0.68 ± 0.06 μg/ml, and 0.30 ± 0.04 μg/ml, respectively. Apoptosis rates were significantly increased following NCL KD, whereas the opposite effect was noted in OE cells. A significant reduction of B-cell lymphoma 2 (Bcl-2) mRNA and protein levels in KD cells was observed, while OE cells displayed the opposite effect. The stability of Bcl-2 mRNA was influenced by NCL levels, the half-life of which was extended after NCL-OE, whereas it was reduced in KD cells. Finally, results of RNA-immunoprecipitation assays indicated that NCL could bind to Bcl-2 mRNA in CA46 cells. Taken together, these results suggested that NCL could mediate Bcl-2 expression and stability, and thus enhance ADM resistance in CA46 BL cells.
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Affiliation(s)
- Xuqiao Mei
- Fujian Provincial Key Laboratory of HematologyFujian Institute of Hematology, Fujian Medical University Union HospitalFuzhouFujianChina
- Department of Clinical LaboratoryThe Affiliated Zhangzhou Municipal Hospital, Fujian Medical UniversityZhangzhouFujianChina
| | - Yanxin Chen
- Fujian Provincial Key Laboratory of HematologyFujian Institute of Hematology, Fujian Medical University Union HospitalFuzhouFujianChina
| | - Donghui Gan
- Fujian Provincial Key Laboratory of HematologyFujian Institute of Hematology, Fujian Medical University Union HospitalFuzhouFujianChina
- Department of HematologyThe Affiliated Hospital of Putian UniversityPutianFujianChina
| | - Yingyu Chen
- Fujian Provincial Key Laboratory of HematologyFujian Institute of Hematology, Fujian Medical University Union HospitalFuzhouFujianChina
| | - Lingyan Wang
- Fujian Provincial Key Laboratory of HematologyFujian Institute of Hematology, Fujian Medical University Union HospitalFuzhouFujianChina
| | - Yanqin Cao
- Fujian Provincial Key Laboratory of HematologyFujian Institute of Hematology, Fujian Medical University Union HospitalFuzhouFujianChina
| | - Zhengjun Wu
- Fujian Provincial Key Laboratory of HematologyFujian Institute of Hematology, Fujian Medical University Union HospitalFuzhouFujianChina
| | - Weijuan Liu
- Fujian Provincial Key Laboratory of HematologyFujian Institute of Hematology, Fujian Medical University Union HospitalFuzhouFujianChina
| | - Chenxing Zhao
- Fujian Provincial Key Laboratory of HematologyFujian Institute of Hematology, Fujian Medical University Union HospitalFuzhouFujianChina
| | - Minhui Lin
- Fujian Provincial Key Laboratory of HematologyFujian Institute of Hematology, Fujian Medical University Union HospitalFuzhouFujianChina
| | - Ting Yang
- Fujian Provincial Key Laboratory of HematologyFujian Institute of Hematology, Fujian Medical University Union HospitalFuzhouFujianChina
| | - Jianda Hu
- Fujian Provincial Key Laboratory of HematologyFujian Institute of Hematology, Fujian Medical University Union HospitalFuzhouFujianChina
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Jiang W, Feng MY, Dong XY, Dong SM, Zheng JX, Liu XM, Liu WJ, Yan J. [Risk factor analysis on anastomotic leakage after laparoscopic surgery in rectal cancer patient with neoadjuvant therapy and establishment of a nomogram prediction model]. Zhonghua Wei Chang Wai Ke Za Zhi 2019; 22:748-754. [PMID: 31422613 DOI: 10.3760/cma.j.issn.1671-0274.2019.08.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the risk factors of anastomotic leakage (AL) after laparoscopic surgery in rectal cancer patient with neoadjuvant therapy and construct a nomogram prediction model. Methods: This study was a retrospective case-control study that collected and reviewed the clinicopathological data of 359 patients who underwent laparoscopic surgery from January 2012 to January 2018, including 202 patients from the Department of General Surgery, Nanfang Hospital of Southern Medical University and 157 patients from the Department of Gastrointestinal Surgery of Fujian Provincial Cancer Hospital. Inclusion criteria: (1) age ≥ 18 years old; (2) diagnosis as rectal cancer by biopsy before treatment; (3) distance from tumor to anus within 12 cm; (4) locally advanced stage (T3-T4 or N+) diagnosed by imaging (CT, MRI, PET or ultrasound); (5) standardized neoadjuvant therapy followed by laparoscopic radical operation. Exclusion criteria: (1) previous history of colorectal cancer surgery; (2) short-term or incomplete standardized neoadjuvant therapy; (3) Miles, Hartmann, emergency surgery, palliative resection; (4) conversion to open surgery. Clinicopathological data, including age, gender, body mass index (BMI), preoperative albumin, distance from tumor to anus, operation hospital, American Society of Anesthesiologists score (ASA score), operation time, T stage, N stage, M stage, TNM stage, pathological complete response (pCR) were analyzed with univariate analysis to identify predictors for AL after laparoscopic surgery in rectal cancer patient with neoadjuvant therapy. Then, incorporated predictors of AL, which were screened by multivariate logistic regression, were plotted by the "rms" package in R software to establish a nomogram model. According to the scale of the nomogram of each risk factor, the total score could be obtained by adding each single score, then the corresponding probability of postoperative AL could be acquired. The area under ROC curve (AUC) was used to evaluate the predictive ability of each risk factor and nomogram on model. AUC > 0.75 indicated that the model had good predictive ability. The Bootstrap method (1000 bootstrapping resamples) was applied as internal verification to show the robustness of the model. The discrimination of the nomogram was determined by calculating the average consistency index (C-index) whose rage was 0.5 to 1.0. Higher C-index indicated better consistency with actual risk. The calibration curve was used to assess the calibration of prediction model. The Hosmer-Lemeshow test yielding a non-significant statistic (P>0.05) suggested no departure from the perfect fit. Results: Of 359 cases, 224 were male, 135 were female, 189 were ≥ 55 years old, 98 had a BMI > 24 kg/m(2), 176 had preoperative albumin ≤ 40 g/L, 128 had distance from tumor to anus ≤ 5 cm, 257 were TNM 0-II stage, 102 were TNM III-IV stage, and 84 achieved pCR after neoadjuvant therapy. The incidence of postoperative AL was 9.5% (34/359). Univariate analysis showed that gender, preoperative albumin and distance from tumor to the anus were associated with postoperative AL (All P<0.05). Multivariate logistic regression analysis revealed that male (OR=2.480, 95% CI: 1.012-6.077, P=0.047), preoperative albumin ≤40 g/L (OR=5.319, 95% CI: 2.106-13.433, P<0.001) and distance from tumor to anus ≤ 5 cm (OR=4.339, 95% CI: 1.990-9.458, P<0.001) were significant independent risk factors for postoperative AL. According to these results, a nomogram prediction model was constructed. The male was for 55 points, the preoperative albumin ≤ 40 g/L was for 100 points, and the distance from tumor to the anus ≤ 5 cm was for 88 points. Adding all the points of each risk factor, the corresponding probability of total score would indicated the morbidity of postoperative AL predicted by this nomogram modal. The AUC of the nomogram was 0.792 (95% CI: 0.729-0.856), and the C-index was 0.792 after internal verification. The calibration curve showed that the predictive results were well correlated with the actual results (P=0.562). Conclusions: Male, preoperative albumin ≤ 40 g/L and distance from tumor to the anus ≤ 5 cm are independent risk factors for AL after laparoscopic surgery in rectal cancer patient with neoadjuvant therapy. The nomogram prediction model is helpful to predict the probability of AL after surgery.
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Affiliation(s)
- W Jiang
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - M Y Feng
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - X Y Dong
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - S M Dong
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - J X Zheng
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - X M Liu
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - W J Liu
- Department of Gastrointestinal Surgery, Fujian Cancer Hospital & Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - J Yan
- Department of General Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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Bujang MA, Kuan PX, Sapri FE, Liu WJ, Musa R. Risk Factors for 3-Year-Mortality and a Tool to Screen Patient in Dialysis Population. Indian J Nephrol 2019; 29:235-241. [PMID: 31423056 PMCID: PMC6668314 DOI: 10.4103/ijn.ijn_152_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Introduction Clinical parameters especially co-morbidities among end stage renal disease (ESRD) patients are associated with mortality. This study aims to determine the risk factors that are associated with mortality within three years among prevalent patients with ESRD. Methods This is a cohort study where prevalent ESRD patients' details were recorded between May 2012 and October 2012. Their records were matched with national death record at the end of year 2015 to identify the deceased patients within three years. Four models were formulated with two models were based on logistic regression models but with different number of predictors and two models were developed based on risk scoring technique. The preferred models were validated by using sensitivity and specificity analysis. Results A total of 1332 patients were included in the study. Majority succumbed due to cardiovascular disease (48.3%) and sepsis (41.3%). The identified risk factors were mode of dialysis (P < 0.001), diabetes mellitus (P < 0.001), chronic heart disease (P < 0.001) and leg amputation (P = 0.016). The accuracy of four models was almost similar with AUC between 0.680 and 0.711. The predictive models from logistic regression model and risk scoring model were selected as the preferred models based on both accuracy and simplicity. Besides the mode of dialysis, diabetes mellitus and its complications are the important predictors for early mortality among prevalent ESRD patients. Conclusions The models either based on logistic regression or risk scoring model can be used to screen high risk prevalent ESRD patients.
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Affiliation(s)
- M A Bujang
- Clinical Research Centre, Sarawak General Hospital, Kuching, Sarawak, Malaysia
| | - P X Kuan
- Clinical Research Centre, Sarawak General Hospital, Kuching, Sarawak, Malaysia
| | - F E Sapri
- Clinical Research Centre, Sarawak General Hospital, Kuching, Sarawak, Malaysia
| | - W J Liu
- Department of Medicine, Haemodialysis Unit, Hospital Sultanah Aminah, Johor Bahru, Johor, Malaysia
| | - R Musa
- Department of Psychiatry, Kulliyyah of Medicine, International Islamic University, Kuantan, Pahang, Malaysia
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Teng WH, Wei C, Liu WJ, Liu S, Chen S, Zang WD. [Effect of preservation of left colic artery on postoperative anastomotic leakage of patients with rectal cancer after neoadjuvant therapy]. Zhonghua Wei Chang Wai Ke Za Zhi 2019; 22:566-572. [PMID: 31238636 DOI: 10.3760/cma.j.issn.1671-0274.2019.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the effect of preservation of left colic artery (LCA) on postoperative anastomotic leakage in patients with rectal cancer after neoadjuvant therapy. Methods: A retrospective cohort study was conducted to collect data of rectal cancer patients at Department of Gastrointestinal Surgery of Fujian Cancer Hospital from September 2014 to August 2017. Inclusion criteria: (1) age of 18 to 79 years; (2) rectal adenocarcinoma confirmed by postoperative pathology; (3) patients without preoperative serious cardiovascular and cerebrovascular disease receiving preoperative neoadjuvant radiotherapy or chemoradiotherapy; (4) laparoscopic-assisted anterior rectal resection and distal ileostomy were performed simultaneously; (5) complete clinical data. Exclusion criteria: patients with extensive abdominal metastasis, or distant organ metastasis during operation, and combined organ resection. According to whether LCA was retained during operation, the patients were divided into two groups, then the intraoperative and postoperative clinical outcomes were compared. Moreover, univariate analysis and multivariate logistic regression were used to analyze risk factors of postoperative anastomotic leakage. Results: A total of 125 patients were included in this study, including 56 patients in the retained LCA group and 69 patients in the non-retained LCA group. Differences in baseline data, such as gender, age, diabetes mellitus, body mass index, hemoglobin, distance between tumor and anal margin, maximum diameter of tumor, preoperative neoadjuvant therapy, and ypTNM stage, between retained LCA group and non-retained LCA group were not statistically significant (all P>0.05), indicating that two groups were comparable. Meanwhile there were no significant differences in operation time, intraoperative blood loss, total number of lymph node harvested, number of harvested lymph node at the root of inferior mesenteric artery, circumferential margin, anastomotic bleeding, or postoperative hospital stay between two groups (all P>0.05). Thirteen patients in the non-retained LCA group (18.8%) developed postoperative anastomotic leakage, including 7 cases of grade A, 5 cases of grade B and 1 case of grade C, while in the retained LCA group, only 5.4% (3/56) of patients developed postoperative anastomotic leakage, including 1 case of grade A and 2 cases of grade B without case of grade C, whose difference was statistically significant (U=1674.500, P=0.028). Univariate analysis showed that preoperative hemoglobin <120 g/L and non-retained LCA were associated with postoperative anastomotic leakage (both P<0.05). Multivariate analysis cofirmed that preoperative hemoglobin < 120 g/L (OR=3.508, 95% CI: 1.158 to 10.628, P=0.017) and non-retained LCA (OR=4.065, 95%CI: 1.074 to 15.388, P=0.031) were independent risk factors for postoperative anastomotic leakage. Median follow-up time was 31 months (16 to 51 months), and no long-term complication was found. Local recurrence and distant metastasis were found in 1 case (1.8%) and 7 case (12.5%) in the retained LCA group, while those were found in 2 cases (2.9%) and 5 cases (7.2%) respectively, in the non-retained LCA group, whose differences were not statistically significant (P=1.000, P=0.321 respectively). Conclusion: Preservation of left colic artery not only can ensure radical lymph node dissection efficacy under the condition of similar operation time and blood loss, but also can effectively reduce the incidence of postoperative anastomotic leakage for rectal cancer patients after neoadjuvant therapy.
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Affiliation(s)
- W H Teng
- Department of Gastrointestinal Surgery, Fujian Cancer Hospital & Fujian Medical University Cancer Hospital, Fuzhou 350014, China
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Liu WJ, Liu ML, Lin S, Liu JC, Lei M, Wu H, Dai CQ, Wei ZY. Synthesis of high quality silver nanowires and their applications in ultrafast photonics. Opt Express 2019; 27:16440-16448. [PMID: 31252869 DOI: 10.1364/oe.27.016440] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 05/16/2019] [Indexed: 06/09/2023]
Abstract
Silver nanowires are widely used in catalysts, surface enhanced Raman scattering, microelectronic equipment, thin film solar cells, microelectrodes and biosensors for their excellent conductivity, heat transfer, low surface resistance, high transparency and good biocompatibility. However, the optical nonlinearity of silver nanowires has not been further explored yet. In this paper, three silver nanowire samples with different concentrations are produced via a typical hydrothermal method. Their applications to fiber lasers are implemented to prove the optical nonlinearity of silver nanowires for the first time. Based on three kinds of silver nanowires, the mode-locked operation of fiber lasers is successfully realized. Moreover, the fiber laser based on the silver nanowire with a concentration of 2 mg/L demonstrates the shortest pulse duration of 149.3 fs. The experiment not only proves the optical nonlinearity of silver nanowires, but also has some enlightenment on the selection of the optimum concentration of silver nanowires in the consideration of ultrashort pulse output.
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Liu WJ, Liu ML, Liu B, Quhe RG, Lei M, Fang SB, Teng H, Wei ZY. Nonlinear optical properties of MoS 2-WS 2 heterostructure in fiber lasers. Opt Express 2019; 27:6689-6699. [PMID: 30876248 DOI: 10.1364/oe.27.006689] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
As a saturable absorption material, the heterostructure with the van der Waals structure has been paid much attention in material science. In general, the heterogeneous combination is able to neutralize, or even exceed, the individual material's advantages in some aspects. In this paper, which describes the magnetron sputtering deposition method, the tapered fiber is coated by the MoS2-WS2 heterostructure, and the MoS2-WS2 heterostructure saturable absorber (SA) is fabricated. The modulation depth of the prepared MoS2-WS2 heterostructure SA is measured to be 19.12%. Besides, the theoretical calculations for the band gap and carrier mobility of the MoS2-WS2 heterostructure are provided. By employing the prepared SA, a stable and passively erbium-doped fiber laser is implemented. The generated pulse duration of 154 fs is certified to be the shortest among all fiber lasers based on transition mental dichalcogenides. Results in this paper provide the new direction for the fabrication of ultrafast photon modulation devices.
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Liu W, Xiang Y, Zhang X, Han G, Sun X, Sheng Y, Yan J, Scheller HV, Zhang A. Over-Expression of a Maize N-Acetylglutamate Kinase Gene ( ZmNAGK) Improves Drought Tolerance in Tobacco. Front Plant Sci 2019; 9:1902. [PMID: 30662448 PMCID: PMC6328498 DOI: 10.3389/fpls.2018.01902] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 12/07/2018] [Indexed: 05/23/2023]
Abstract
Water deficit is a key limiting factor that affects the growth, development and productivity of crops. It is vital to understand the mechanisms by which plants respond to drought stress. Here an N-acetylglutamate kinase gene, ZmNAGK, was cloned from maize (Zea mays). ZmNAGK was expressed at high levels in maize leaves and at lower levels in root, stem, female flower and male flower. The expression of ZmNAGK was significantly induced by PEG, NaCl, ABA, brassinosteroid and H2O2. The ectopic expression of ZmNAGK in tobacco resulted in higher tolerance to drought compared to plants transformed with empty vector. Further physiological analysis revealed that overexpression of ZmNAGK could enhance the activities of antioxidant defense enzymes, and decrease malondialdehyde content and leakage of electrolyte in tobacco under drought stress. Moreover, the ZmNAGK transgenic tobacco accumulated more arginine and nitric oxide (NO) than control plants under drought stress. In addition, the ZmNAGK transgenic tobaccos activated drought responses faster than vector-transformed plants. These results indicate that ZmNAGK can play a vital role in enhancing drought tolerance by likely affecting the arginine and NO accumulation, and ZmNAGK could be involved in different strategies in response to drought stress.
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Affiliation(s)
- Weijuan Liu
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Yang Xiang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Xiaoyun Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Gaoqiang Han
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Xiujuan Sun
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Yu Sheng
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Jingwei Yan
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Henrik Vibe Scheller
- Environmental Genomics and Systems Biology Division, Joint Bioenergy Institute, Lawrence Berkeley National Laboratory, Berkeley, CA, United States
| | - Aying Zhang
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China
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Liu WJ, Gong LG, Tan CM, Xing Y. [Experience from treatment of infection after internal fixation of fracture of maxillary sinus]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 31:475-477. [PMID: 29871289 DOI: 10.13201/j.issn.1001-1781.2017.06.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Indexed: 11/12/2022]
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Liu WJ, Chen K, Jing YF, Hu HS, Cheng JM, Qian WX, Liu J. A sub-megavolt anti-scattering grid: Fabrication, testing, and Monte Carlo simulation. Rev Sci Instrum 2018; 89:085119. [PMID: 30184666 DOI: 10.1063/1.5034316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 07/31/2018] [Indexed: 06/08/2023]
Abstract
X-ray flash radiography is an effective diagnostic in implosive research. While scattering reduces the contrast of radiography, the anti-scattering grids can effectively intercept the scattered radiation and acquire better images. A focused sub-megavolt grid is elaborately manufactured with the combination of lithography, etching, and laser drilling. The consistency of Monte Carlo simulations and radiographic experiments suggests a transmission of about 36% and a 1000 times improvement for the signal to scatter ratio of the grid.
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Affiliation(s)
- W J Liu
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, Sichuan 621990, China
| | - K Chen
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, Sichuan 621990, China
| | - Y F Jing
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, Sichuan 621990, China
| | - H S Hu
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, Sichuan 621990, China
| | - J M Cheng
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, Sichuan 621990, China
| | - W X Qian
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, Sichuan 621990, China
| | - J Liu
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, Sichuan 621990, China
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Li XQ, Liu WJ, Duan JX, Li WQ, Wang X, Wei YT. [Meta analysis on effectiveness of epidermal growth factor in treating patients with inhalation injury]. Zhonghua Shao Shang Za Zhi 2018; 34:459-465. [PMID: 30060348 DOI: 10.3760/cma.j.issn.1009-2587.2018.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To systematically evaluate the effectiveness of epidermal growth factor (EGF) in treating patients with inhalation injury by meta analysis. Methods: Databases including PubMed, Cochrance Library, and Embase were searched using key words " inhalation injury, smoke inhalation injury, epidermal growth factor, and EGF" , and Chinese Journals Full-text Database, China Biology Medicine disc, VIP Database, and Wanfang Database were searched using key words in Chinese version "," to obtain the randomized controlled trails about EGF published publicly in the treatment of patients with inhalation injury from the establishment of each database to December 2017. The measurement indexes included content of total protein and albumin, colloid osmotic pressure (COP), the number of total cells, percentages of neutrophils, lymphocytes, and fibroblasts in bronchoalveolar lavage fluid (BALF), the time of disappearance of pulmonary symptoms, the time of exfoliation of necrotic mucous membrane, the time of removal of tracheal tube, the amount of respiratory secretions, and the incidence of lung infection. Meta-analysis was conducted by RevMan 5.3 statistical software. Results: A total of 6 trials involving 375 patients were included, with 182 patients in group EGF who received EGF treatment and 173 patients in conventional treatment group who received conventional treatment. All of the 6 trails had unclear risk of bias. The content of total protein and albumin and COP in BALF of patients in group EGF were lower than those in conventional treatment group, with standardized mean differences (SMDs) respectively -9.37, -26.77 , and -8.13 [with 95% confidence intervals (CIs) respectively -14.11--4.63, -41.85--11.69, -9.54--6.73, P<0.001]. The number of total cells and percentages of neutrophils and lymphocytes in BALF of patients in group EGF were lower than those in conventional treatment group, while the percentage of fibroblasts in BALF of patients in group EGF was higher than that in conventional treatment group, with SMDs respectively -20.22, -13.08, -12.28, 2.99 (with 95% CIs respectively -22.27--17.66 , -14.76--11.40, -13.86--10.70, 2.48-3.50, P<0.001). The time of disappearance of pulmonary symptoms, the time of exfoliation of necrotic mucous membrane, and the time of removal of tracheal tube of patients in group EGF were shorter than those in conventional treatment group, with SMDs respectively -1.05, -1.22 , -1.11 (with 95% CIs respectively -1.36--0.74, -1.54--0.91, -1.39--0.82, P<0.001). The amount of respiratory secretions of patients in group EGF was lower than that in conventional treatment group, with SMD -1.44 (with 95% CI -1.90--0.98, P<0.001). The incidence rate of pulmonary infection of patients in group EGF was lower than that in conventional treatment group, with relative risk 0.46 (with 95% CI 0.24-0.89, P<0.05). There may be publication bias in the content of total protein, albumin, and COP in BALF (P<0.05), while the time of disappearance of pulmonary symptoms, the time of exfoliation of necrotic mucous membrane, and the time of removal of tracheal tube showed no significant publication bias (P>0.05). Conclusions: Conventional treatment combined with EGF therapy can reduce respiratory inflammation of inhalation injury, promote restoration of respiratory epithelium, shorten the time of removal of tracheal tube, reduce the incidence of pulmonary infection of patients, and therefore has good effect on inhalation injury.
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Affiliation(s)
- X Q Li
- Department of Burns, the Second Affiliated Hospital of Kunming Medical University, Kunming 650101, China
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Liu WJ, Wang J, Yang H, Wu HY. [Chronic active Epstein-Barr virus infection cause pharyngeal ulcer and major blooding: a case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 53:456-459. [PMID: 29902855 DOI: 10.3760/cma.j.issn.1673-0860.2018.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- W J Liu
- Department of Otorhinolaryngology, Beijing Pinggu Hospital, Beijing 101200, China
| | - J Wang
- Department of Otorhinolaryngology, Peking Union Medical College Hospital, Beijing 100730, China
| | - H Yang
- Department of Otorhinolaryngology, Peking Union Medical College Hospital, Beijing 100730, China
| | - H Y Wu
- Department of Otorhinolaryngology, Peking Union Medical College Hospital, Beijing 100730, China
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Li XQ, Wang X, Han YL, Ji G, Chen ZH, Zhang J, Zhu JP, Duan JX, He YJ, Yang XM, Liu WJ. [Effects of anteriolateral thigh perforator flap and fascia lata transplantation in combination with computed tomography angiography on repair of electrical burn wounds of head with skull exposure and necrosis]. Zhonghua Shao Shang Za Zhi 2018; 34:283-287. [PMID: 29804427 DOI: 10.3760/cma.j.issn.1009-2587.2018.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effects of anteriolateral thigh perforator flap and fascia lata transplantation in combination with computed tomography angiography (CTA) on repair of electrical burn wounds of head with skull exposure and necrosis. Methods: Seven patients with head electrical burns accompanied by skull exposure and necrosis were admitted to our burn center from March 2016 to December 2017. Head CTA was performed before the operation. The diameters of the facial artery and vein or the superficial temporal artery and vein were measured, and their locations were marked on the body surface. Preoperative CTA for flap donor sites in lower extremities were also performed to track the descending branch of the lateral circumflex femoral artery with the similar diameter as the recipient vessels on the head, and their locations were marked on the body surface. Routine wound debridement and skull drilling were performed successively. The size of the wounds after debridement ranged from 12 cm×8 cm to 20 cm×12 cm, and the areas of skull exposure ranged from 8 cm×6 cm to 15 cm×10 cm. Anteriolateral thigh perforator flaps with areas from 13 cm×9 cm to 21 cm×13 cm containing 5-10 cm long vascular pedicles were designed and dissected accordingly. The fascia lata under the flap with area from 5 cm×2 cm to 10 cm×3 cm was dissected according to the length of vascular pedicle. The fascia lata was transplanted to cover the exposed skull, and the anteriolateral thigh perforator flap was transplanted afterwards. The descending branch of the lateral circumflex femoral artery and its accompanying vein of the flap were anastomosed with superficial temporal artery and vein or facial artery and vein before the suture of flap. The flap donor sites were covered by intermediate split-thickness skin graft collected from contralateral thigh or abdomen. Results: The descending branch of the lateral circumflex femoral artery and its accompanying vein were anastomosed with superficial temporal artery and vein in six patients, while those with facial artery and vein in one patient. All the flaps survived after the operation, and no vascular crisis was observed. Wound healing was satisfactory. One patient was lost to follow up. Six patients were followed up for 6 to 10 months. The patients were bald in the head operation area with acceptable appearance. No psychiatric symptom such as headache or epileptic seizure was reported. The flap donor sites were normal in appearance. The muscle strength of the lower extremities all reached grade V. The sensation and movement of the lower extremities were normal. Conclusions: Anterolateral thigh perforator flap with fascia lata transplantation can effectively repair electrical burn wounds of head with skull exposure and necrosis. The fascia lata can be used to protect the vascular pedicle of flaps, which is beneficial to the survival of the flap. Preoperative head and lower extremities CTA can provide reference for intraoperative vascular exploration in donor site and recipient area, so as to shorten operation time.
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Affiliation(s)
- X Q Li
- Department of Burns, the Second Affiliated Hospital of Kunming Medical University, Kunming 650101, China
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Zhang J, Liu W, Hou Y, Qiu C, Yang S, Li C, Nie L. Sparse Representation Classification of Tobacco Leaves Using Near-Infrared Spectroscopy and a Deep Learning Algorithm. ANAL LETT 2017. [DOI: 10.1080/00032719.2017.1365882] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Jianqiang Zhang
- Yunnan Reascend Tobacco Technology (Group) Company Limited, Kunming, China
- Faculty of Science, Kunming University of Science and Technology, Kunming, China
| | - Weijuan Liu
- Yunnan Reascend Tobacco Technology (Group) Company Limited, Kunming, China
| | - Ying Hou
- Yunnan Comtestor Company, Kunming, China
| | | | | | - Changyu Li
- Yunnan Reascend Tobacco Technology (Group) Company Limited, Kunming, China
| | - Linru Nie
- Faculty of Science, Kunming University of Science and Technology, Kunming, China
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Wu BB, Zheng HM, Ding YQ, Liu WJ, Lu HL, Zhou P, Chen L, Sun QQ, Ding SJ, Zhang DW. Direct Growth of Al 2O 3 on Black Phosphorus by Plasma-Enhanced Atomic Layer Deposition. Nanoscale Res Lett 2017; 12:282. [PMID: 28431459 PMCID: PMC5398975 DOI: 10.1186/s11671-017-2016-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 03/20/2017] [Indexed: 05/30/2023]
Abstract
Growing high-quality and uniform dielectric on black phosphorus is challenging since it is easy to react with O2 or H2O in ambient. In this work, we have directly grown Al2O3 on BP using plasma-enhanced atomic layer deposition (PEALD). The surface roughness of BP with covered Al2O3 film can reduce significantly, which is due to the removal of oxidized bubble in BP surface by oxygen plasma. It was also found there is an interfacial layer of PO x in between amorphous Al2O3 film and crystallized BP, which is verified by both X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM) measurements. By increasing temperature, the PO x can be converted into fully oxidized P2O5.
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Affiliation(s)
- B B Wu
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, Jiangsu, China
- State Key Lab ASIC & Syst., Department Microelectronics, Fudan University, Shanghai, 201203, China
| | - H M Zheng
- State Key Lab ASIC & Syst., Department Microelectronics, Fudan University, Shanghai, 201203, China
| | - Y Q Ding
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, Jiangsu, China.
| | - W J Liu
- State Key Lab ASIC & Syst., Department Microelectronics, Fudan University, Shanghai, 201203, China.
| | - H L Lu
- State Key Lab ASIC & Syst., Department Microelectronics, Fudan University, Shanghai, 201203, China
| | - P Zhou
- State Key Lab ASIC & Syst., Department Microelectronics, Fudan University, Shanghai, 201203, China
| | - L Chen
- State Key Lab ASIC & Syst., Department Microelectronics, Fudan University, Shanghai, 201203, China
| | - Q Q Sun
- State Key Lab ASIC & Syst., Department Microelectronics, Fudan University, Shanghai, 201203, China
| | - S J Ding
- State Key Lab ASIC & Syst., Department Microelectronics, Fudan University, Shanghai, 201203, China
| | - David W Zhang
- State Key Lab ASIC & Syst., Department Microelectronics, Fudan University, Shanghai, 201203, China
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Liu WJ, Zhang YS, Cheng GS, Du YJ, He L, Wang XY, He XM. [Comparison on the efficacy and safety of different occlusion devices for the treatment of patients with patent foramen ovale]. Zhonghua Xin Xue Guan Bing Za Zhi 2017. [PMID: 28648024 DOI: 10.3760/cma.j.issn.0253-3758.2017.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the efficacy and safety of Cardi-O-fix patent foramen ovale (PFO) occluder and Amplatzer PFO occluder for the treatment of patients with PFO. Methods: A total of 246 consecutive patients (105 males and 141 females) with PFO were prospectively enrolled from May 30, 2013 to March 30, 2015 in our hospital. PFO interventional closure was applied according to the anatomical structure of the disease and patients' wishes.Cardi-O-fix PFO occluder was used in 180 cases (COF group), Amplatzer PFO occluder was used in the remaining 66 cases (Amp group). Post-procedure safety including recurrent stroke, transient ischemic attack, death, and complete closure rate, and efficacy including procedure related complications of different devices were compared during the 12 months follow-up. Results: (1) Rate of transient ischemic attack was similar between COF group and Amp group at 12 months after procedure(1.1%(2/180) vs. 1.5%(1/66), P=1.000). There was no recurrent stroke and death during the 12 months follow-up period.Complete closure rate was similar between COF group and Amp group at 12 months after the procedure(90.6%(163/180)vs. 86.4%(57/66), P=0.355). (2) Three cases(1.7%) of paroxysmal atrial fibrillation were observed in COF group during the 12 months follow-up period, 1 patient converted spontaneously to sinus rhythm and 2 patients received successful pharmacologic conversion and converted to sinus rhythm. One patient(1.5%)developed paroxysmal atrial fibrillation and was pharmacologically converted to sinus rhythm in the Amp group. There was no significant difference in rate of paroxysmal atrial fibrillation between the two groups(P=1.000). There was no complications such as occluder translocation, erosion, pericardial effusion and puncture site bleeding in the 2 groups during the 12 months follow-up. Conclusion: Efficacy and safety are similar for PFO treatment with Cardi-O-fix PFO occluder or Amplatzer PFO occluder in this patient cohort.
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Affiliation(s)
- W J Liu
- Department of Structural Heart Disease, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
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Liu WJ, Wang WD, Wang H, Wang JH, Lyu Y. [Efficacy and safety of DVD and VAD regimens in patients with newly diagnosed multiple myeloma]. Zhonghua Xue Ye Xue Za Zhi 2017; 38:542-544. [PMID: 28655101 PMCID: PMC7342975 DOI: 10.3760/cma.j.issn.0253-2727.2017.06.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/20/2023]
Affiliation(s)
| | | | | | | | - Y Lyu
- Department of Hematologic Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
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