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Zhou S, Zhang H, Liang J, Fu W, Lou Z, Feng B, Yang Y, Xie Z, Liu Q. Feasibility, Indications, and Prognostic Significance of Selective Lateral Pelvic Lymph Node Dissection After Preoperative Chemoradiotherapy in Middle/Low Rectal Cancer: Results of a Multicenter Lateral Node Study in China. Dis Colon Rectum 2024; 67:228-239. [PMID: 36649192 DOI: 10.1097/dcr.0000000000002640] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
BACKGROUND Lateral pelvic lymph node dissection after preoperative chemoradiotherapy can decrease local recurrence to lateral compartments, thereby providing survival benefits. OBJECTIVE The safety of lateral pelvic lymph node dissection after preoperative chemoradiotherapy was investigated, and the surgical indications and survival benefits of lateral pelvic lymph node dissection were established on the basis of preoperative characteristics. DESIGN A multicenter retrospective study. SETTINGS Three hospitals in China. PATIENTS Four hundred nine patients with clinical evidence of lateral pelvic lymph node metastasis. INTERVENTIONS Patients who received lateral pelvic lymph node dissection were divided into 2 groups depending on whether they received chemoradiotherapy (n = 139) or not (n = 270). MAIN OUTCOME MEASURES The safety, indications, and survival benefits of lateral pelvic lymph node dissection after preoperative chemoradiotherapy were investigated. RESULTS The surgery times were significantly prolonged by preoperative chemoradiotherapy (291.3 vs 265.5 min; p = 0.021). Multivariate analysis demonstrated that poor/mucinous/signet-ring adenocarcinoma (OR = 4.42, 95% CI, 2.24-11.27; p = 0.031) and postchemoradiotherapy lateral pelvic lymph node short-axis diameter ≥7 mm (OR = 15.2, 95% CI, 5.89-53.01; p < 0.001) were independent predictive factors for lateral pelvic lymph node metastasis. Multivariate prognostic analysis showed that swollen lateral pelvic lymph nodes beyond the obturator or internal iliac as well as the involvement of 3 or more lateral pelvic lymph nodes were independent adverse prognostic factors. LIMITATIONS The retrospective nature of the study and the small sample size were the limitations of this study. CONCLUSIONS Preoperative chemoradiotherapy combined with lateral pelvic lymph node dissection is a practicable procedure with acceptable morbidity. Postchemoradiotherapy lateral pelvic lymph node short-axis diameter ≥7 mm and poor/signet/mucinous adenocarcinoma could be used for predicting lateral pelvic lymph node metastasis after chemoradiotherapy. However, lateral pelvic lymph node dissection should be carefully considered in patients with swollen lateral pelvic lymph nodes beyond the obturator or internal iliac region or involvement of multiple lateral pelvic lymph nodes. See Video Abstract at http://links.lww.com/DCR/C133 . VIABILIDAD, INDICACIONES E IMPORTANCIA PRONSTICA DE LA DISECCIN SELECTIVA DE GANGLIOS LINFTICOS PLVICOS LATERALES DESPUS DE QUIMIORRADIOTERAPIA PREOPERATORIA EN CNCER DE RECTO MEDIO/INFERIOR RESULTADOS DE UN ESTUDIO MULTICNTRICO DE GANGLIOS LATERALES EN CHINA ANTECEDENTES:La disección de los ganglios linfáticos pélvicos laterales después de la quimiorradioterapia preoperatoria puede disminuir la recurrencia local en los compartimentos laterales, lo que brinda beneficios de supervivencia.OBJETIVO:Se investigó la seguridad de la disección de los ganglios linfáticos pélvicos laterales después de la quimiorradioterapia preoperatoria, y se establecieron las indicaciones quirúrgicas y los beneficios de supervivencia de la disección de los ganglios linfáticos pélvicos laterales en función de las características preoperatorias.DISEÑO:Estudio retrospectivo multicéntrico.ESCENARIO:Tres hospitales en China.PACIENTES:Cuatrocientos nueve pacientes con evidencia clínica de metástasis en los ganglios linfáticos pélvicos laterales.INTERVENCIONES:Los pacientes que recibieron disección de ganglios linfáticos pélvicos laterales se dividieron en dos grupos dependiendo de si recibieron quimiorradioterapia (n = 139) o no (n = 270).PRINCIPALES MEDIDAS DE RESULTADO:Se investigaron la seguridad, las indicaciones y los beneficios de supervivencia de la disección de los ganglios linfáticos pélvicos laterales después de la quimiorradioterapia preoperatoria.RESULTADOS:Los tiempos de cirugía se prolongaron significativamente con la quimiorradioterapia preoperatoria (291,3 vs 265,5 min, p = 0,021). El análisis multivariable demostró que el adenocarcinoma mal diferenciado/mucinoso/en anillo de sello (odds ratio = 4,42, intervalo de confianza del 95%, 2,24-11,27; p = 0,031) y el diámetro del eje corto de los ganglios linfáticos pélvicos laterales después de la quimiorradioterapia ≥7 mm (odds ratio = 15,2, intervalo de confianza del 95%, 5,89-53,01; p < 0,001) fueron factores predictivos independientes de metástasis en los ganglios linfáticos pélvicos laterales. El análisis pronóstico multivariable mostró que la inflamación de los ganglios linfáticos pélvicos laterales más allá del obturador o la ilíaca interna, así como la afectación de tres o más ganglios linfáticos pélvicos laterales, eran factores pronósticos adversos independientes.LIMITACIONES:La naturaleza retrospectiva del estudio y el pequeño tamaño de la muestra.CONCLUSIONES:La quimiorradioterapia preoperatoria combinada con la disección de los ganglios linfáticos pélvicos laterales es un procedimiento practicable con una morbilidad aceptable. Posterior a la quimiorradioterapia, el diámetro del eje corto de los ganglios linfáticos pélvicos laterales ≥7 mm y el adenocarcinoma pobre/en sello/mucinoso podrían usarse para predecir la metástasis en los ganglios linfáticos pélvicos laterales después de la quimiorradioterapia. Sin embargo, la disección de los ganglios linfáticos pélvicos laterales debe considerarse cuidadosamente en pacientes con ganglios linfáticos pélvicos laterales inflamados más allá del obturador o de la región ilíaca interna o compromiso de múltiples ganglios linfáticos pélvicos laterales. Consulte Video Resumen en http://links.lww.com/DCR/C133 . (Traducción-Dr. Felipe Bellolio ).
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Affiliation(s)
- Sicheng Zhou
- Breast Disease Center, Peking University First Hospital, Beijing, China
| | - Hong Zhang
- Department of Colorectal Tumor Surgery, Shengjing Hospital, China Medical University, Shenyang, China
| | - Jianwei Liang
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wei Fu
- Department of Gastrointestinal Surgery, Affiliated Hospital, Xuzhou Medical College, Xuzhou, China
| | - Zheng Lou
- Department of Colorectal Surgery, Changhai Hospital, Nava Military Medical University, Shanghai, China
| | - Bo Feng
- Department of Gastrointestinal Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Minimally Invasive Surgery Center, Shanghai, China
| | - Yingchi Yang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Zhongshi Xie
- Department of Gastrointestinal and Colorectal Surgery, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Qian Liu
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Zhong B, Qin X, Xu H, Liu L, Li L, Li Z, Cao L, Lou Z, Jackman JA, Cho NJ, Wang L. Interindividual- and blood-correlated sweat phenylalanine multimodal analytical biochips for tracking exercise metabolism. Nat Commun 2024; 15:624. [PMID: 38245507 PMCID: PMC10799919 DOI: 10.1038/s41467-024-44751-z] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 01/03/2024] [Indexed: 01/22/2024] Open
Abstract
In situ monitoring of endogenous amino acid loss through sweat can provide physiological insights into health and metabolism. However, existing amino acid biosensors are unable to quantitatively assess metabolic status during exercise and are rarely used to establish blood-sweat correlations because they only detect a single concentration indicator and disregard sweat rate. Here, we present a wearable multimodal biochip integrated with advanced electrochemical electrodes and multipurpose microfluidic channels that enables simultaneous quantification of multiple sweat indicators, including phenylalanine and chloride, as well as sweat rate. This combined measurement approach reveals a negative correlation between sweat phenylalanine levels and sweat rates among individuals, which further enables identification of individuals at high metabolic risk. By tracking phenylalanine fluctuations induced by protein intake during exercise and normalizing the concentration indicator by sweat rates to reduce interindividual variability, we demonstrate a reliable method to correlate and analyze sweat-blood phenylalanine levels for personal health monitoring.
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Affiliation(s)
- Bowen Zhong
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiaokun Qin
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hao Xu
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lingchen Liu
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Linlin Li
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhexin Li
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Limin Cao
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, 300052, China
| | - Zheng Lou
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Joshua A Jackman
- School of Chemical Engineering and Translational Nanobioscience Research Center, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Nam-Joon Cho
- School of Materials Science and Engineering, Nanyang Technological University, 637553, Singapore, Singapore
| | - Lili Wang
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China.
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.
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Lv Y, Huang Y, Fan H, Zhao Y, Ma L, Lan Y, Li C, Chen P, Lou Z, Zhou J. 17β-Estradiol inhibits hydrogen peroxide-induced senescence and apoptosis in human umbilical vein endothelial cells by regulating the THBS1/TGF-β/Smad axis. Mol Cell Endocrinol 2024; 580:112111. [PMID: 37979907 DOI: 10.1016/j.mce.2023.112111] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/30/2023] [Accepted: 11/13/2023] [Indexed: 11/20/2023]
Abstract
Before menopause, females exhibit a lower incidence of cardiovascular disease than age-matched males, possibly owing to the protective effects of sex hormones. 17β-estradiol (17β-E2) protects against oxidative stress-induced injury by suppressing thrombospondin-1 (THBS1) expression in endothelial cells. Here, we examined the role of 17β-E2-mediated THBS1 suppression in preventing cell senescence and apoptosis. Human umbilical vein endothelial cells (HUVECs) were cultivated and treated with siRNA or overexpression plasmids to regulate THBS1. H2O2, estrogen-activity modulating drugs, and LY2109761 (a TGF-β kinase inhibitor) treatments were applied. THBS1 knockdown repressed, and its overexpression aggravated, H2O2-induced cell injury, affecting cell death, proliferation, senescence, and apoptosis. 17β-E2 inhibited THBS1 mRNA and protein expression time- and dose-dependently, by targeting ERβ. THBS1 overexpression blocked 17β-E2 from preventing H2O2-induced injury, significantly activating the TGF-β/Smad pathway. 17β-E2 inhibited H2O2-induced oxidative stress by downregulating THBS1 expression and TGF-β/Smad signaling in HUVECs. The THBS1/TGF-β/Smad axis could thus be a therapeutic target.
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Affiliation(s)
- Yifei Lv
- Department of Gynecology, Women's Hospital, Zhejiang University School of Medicine, Key Laboratory of Women's Reproductive Health of Zhejiang Province, Hangzhou, People's Republic of China; Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Hangzhou, People's Republic of China
| | - Yizhou Huang
- Department of Gynecology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China; Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Hangzhou, People's Republic of China
| | - Huiyu Fan
- Department of Gynecology, Women's Hospital, Zhejiang University School of Medicine, Key Laboratory of Women's Reproductive Health of Zhejiang Province, Hangzhou, People's Republic of China; Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Hangzhou, People's Republic of China
| | - Yunxiu Zhao
- Department of Gynecology, Women's Hospital, Zhejiang University School of Medicine, Key Laboratory of Women's Reproductive Health of Zhejiang Province, Hangzhou, People's Republic of China; Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Hangzhou, People's Republic of China
| | - Linjuan Ma
- Department of Gynecology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China; Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Hangzhou, People's Republic of China
| | - Yibing Lan
- Department of Gynecology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China; Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Hangzhou, People's Republic of China
| | - Chunming Li
- Department of Gynecology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China; Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Hangzhou, People's Republic of China
| | - Peiqiong Chen
- Department of Gynecology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China; Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Hangzhou, People's Republic of China
| | - Zheng Lou
- Department of Gynecology, Women's Hospital, Zhejiang University School of Medicine, Key Laboratory of Women's Reproductive Health of Zhejiang Province, Hangzhou, People's Republic of China; Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Hangzhou, People's Republic of China
| | - Jianhong Zhou
- Department of Gynecology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, People's Republic of China; Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Hangzhou, People's Republic of China.
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Qian Z, Xia H, Zhou J, Wang R, Zhu D, Chen L, Kang H, Feng J, Hu X, Wang L, Xu S, Lou Z, Tao Y. Performance of Metagenomic Next-Generation Sequencing of Cell-Free DNA From Vitreous and Aqueous Humor for Diagnoses of Intraocular Infections. J Infect Dis 2024; 229:252-261. [PMID: 37882788 DOI: 10.1093/infdis/jiad363] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 08/28/2023] [Indexed: 10/27/2023] Open
Abstract
BACKGROUND Delayed diagnosis and improper therapy for intraocular infections usually result in poor prognosis. Due to limitations of conventional culture and polymerase chain reaction methods, most causative pathogens cannot be identified from vitreous humor (VH) or aqueous humor (AH) samples with limited volume. METHODS Patients with suspected intraocular infections were enrolled from January 2019 to August 2021. Metagenomic next-generation sequencing (mNGS) was used to detected causative pathogens. RESULTS This multicenter prospective study enrolled 488 patients, from whom VH (152) and AH (336) samples were respectively collected and analyzed using mNGS of cell-free DNA (cfDNA). Taking final comprehensive clinical diagnosis as the gold standard, there were 39 patients with indefinite final diagnoses, whereas 288 and 161 patients were diagnosed as definite infectious and noninfectious diseases, respectively. Based on clinical adjudication, the sensitivity (92.2%) and total coincidence rate (81.3%) of mNGS using VH samples were slightly higher than those of mNGS using AH samples (85.4% and 75.4%, respectively). CONCLUSIONS Using mNGS of cfDNA, an era with clinical experience for more rapid, independent, and impartial diagnosis of bacterial and other intraocular infections can be expected.
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Affiliation(s)
- Zhuyun Qian
- Department of Ophthalmology, Beijing Chaoyang Hospital, Capital Medical University
- Key Laboratory jointly built by the National Institute for Viral Disease Control and Prevention of China Center for Disease Control and Prevention, Beijing GIANTMED Medical Diagnostics Laboratory
- Department of Medicine, Beijing GIANTMED Medical Diagnostics Laboratory
| | - Han Xia
- Department of Scientific Affairs, Hugobiotech Co, Ltd, Beijing
| | - Jiemin Zhou
- Department of Scientific Affairs, Hugobiotech Co, Ltd, Beijing
| | - Ruifeng Wang
- Department of Ophthalmology, Zhengzhou Second People's Hospital, Zhengzhou, Henan
| | - Dan Zhu
- Department of Ophthalmology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia
| | - Li Chen
- Department of Ophthalmology, Beijing Chaoyang Hospital, Capital Medical University
| | - Hao Kang
- Department of Ophthalmology, Beijing Chaoyang Hospital, Capital Medical University
| | - Jing Feng
- Department of Ophthalmology, Beijing Chaoyang Hospital, Capital Medical University
| | - Xiaofeng Hu
- Department of Ophthalmology, Beijing Chaoyang Hospital, Capital Medical University
| | - Lu Wang
- Department of Medicine, Beijing GIANTMED Medical Diagnostics Laboratory
| | - Songtao Xu
- National Institute for Viral Disease Control and Prevention, China Center for Disease Control and Prevention, Beijing, China
| | - Zheng Lou
- Department of Scientific Affairs, Hugobiotech Co, Ltd, Beijing
| | - Yong Tao
- Department of Ophthalmology, Beijing Chaoyang Hospital, Capital Medical University
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Lu Y, Zhang Y, Lou Z, He X, Zhang Q, Zhang Q, Zhao S, Chen H, Zhu H, Song Z, Zhang R, Ma C, Liu D. Metagenomic next-generation sequencing of cell-free DNA for the identification of viruses causing central nervous system infections. Microbiol Spectr 2024; 12:e0226423. [PMID: 38095471 PMCID: PMC10783088 DOI: 10.1128/spectrum.02264-23] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 11/22/2023] [Indexed: 01/13/2024] Open
Abstract
IMPORTANCE This study provides significant new data on the application of metagenomic next-generation sequencing (mNGS) to clinical diagnostics of central nervous system (CNS) viral infections, which can have high mortality rates and severe sequelae. Conventional diagnostic procedures for identifying viruses can be inefficient and rely on preconceived assumptions about the pathogen, making mNGS an appealing alternative. However, the effectiveness of mNGS is affected by the presence of human DNA contamination, which can be minimized by using cell-free DNA (cfDNA) instead of whole-cell DNA (wcDNA). This multi-center retrospective study of patients with suspected viral CNS infection found that mNGS using cfDNA had a significantly lower proportion of human DNA and higher sensitivity for detecting viruses than mNGS using wcDNA. Herpesviruses, particularly VZV, were found to be the most common DNA viruses in these patients. Overall, mNGS using cfDNA is a promising complementary diagnostic method for detecting CNS viral infections.
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Affiliation(s)
- Yuying Lu
- Department of Neurology, The Third Xiangya Hospital of Central South University, Changsha, China
- Key laboratory of Microbial Molecular Biology of Hunan Province, Hunan Provincial Center for Disease Control and Prevention, Changsha, China
| | - Ye Zhang
- Department of Scientific Affairs, Hugobiotech Co., Ltd., Beijing, China
| | - Zheng Lou
- Department of Scientific Affairs, Hugobiotech Co., Ltd., Beijing, China
| | - Xiaomin He
- Department of Scientific Affairs, Hugobiotech Co., Ltd., Beijing, China
| | - Qinghua Zhang
- Department of Neurology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Qingxia Zhang
- Department of Neurology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Shu Zhao
- Department of Neurology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Han Chen
- Department of Neurology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Haixia Zhu
- Department of Neurology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Zhi Song
- Department of Neurology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Ruxu Zhang
- Department of Neurology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Caiyu Ma
- Department of Neurology, The Third Xiangya Hospital of Central South University, Changsha, China
- Department of Neurology, The Affiliated Changsha Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Ding Liu
- Department of Neurology, The Third Xiangya Hospital of Central South University, Changsha, China
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Ren T, Qiu K, Li A, Huan S, Lou Z, Ji L, Li S, Hong Y. High diffraction efficiency varied-line-space concave gratings for the Lyman ultraviolet explorer. Appl Opt 2023; 62:9414-9421. [PMID: 38108714 DOI: 10.1364/ao.506040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 11/21/2023] [Indexed: 12/19/2023]
Abstract
In this paper we present the design and fabrication of the reflection varied-line-space concave grating (VLSCG) for the project of CAFE (the Census of warm-hot intergalactic medium, Accretion, and Feedback Explorer), which aims to detect and map the warm-hot circumgalactic medium via OVI emission at 103.2 nm and 103.8 nm, using two off-Rowland-circle spectrograph channels. High diffraction efficiency at LUV is supposed for the VLSCG and an aperture ratio as small as $F/3.6$ is desired for a compact design. The gratings are fabricated by holographic lithography and ion beam etching techniques. We introduce an additional lens into the normal holographic exposing system to generate the varied-line-space grating patterns. Grooves with triangle profiles are obtained to increase the diffraction efficiency by oblique ion beam bombardment during the etching process. Finally, several VLSCGs with a central line density of 3300 lines/mm have been fabricated successfully. The measured results show that the groove efficiency reaches 51% at 106.4 nm and 31% at 127.4 nm. We imitated the working optical path of the spectrometer and used the ${-}{1}$ order of the VLSCG to measure the image near the exit slit. The results showed that the image of the point source has a vertical extent of 0.68 mm, and the aberrations have been corrected.
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Sun G, Zang Y, Ding H, Chen Y, Groothof D, Gong H, Lou Z, Meng R, Chen Z, Furnee E, Xiang J, Zhang W. Comparison of anal function and quality of life after conformal sphincter preservation operation and intersphincteric resection of very low rectal cancer: a multicenter, retrospective, case-control analysis. Tech Coloproctol 2023; 27:1275-1287. [PMID: 37248369 PMCID: PMC10638180 DOI: 10.1007/s10151-023-02819-w] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Accepted: 05/02/2023] [Indexed: 05/31/2023]
Abstract
PURPOSE Conformal sphincter preservation operation (CSPO) is a sphincter preservation operation for very low rectal cancers. Compared to intersphincteric resection (ISR), CSPO retains more dentate line and distal rectal wall, and also avoids damaging the nerves in the intersphincteric space. This study aimed to compare the postoperative anal function and quality of life between the CSPO and ISR. METHOD Patients with low rectal cancer undergoing CSPO (n = 117) and ISR (n = 66) were included from Changhai and Huashan Hospital, respectively, between 2011 and 2020. A visual analog scale (range 0-10) was utilized to evaluate satisfaction with anal function and quality of life. The anal function was evaluated with Wexner scores and low anterior resection syndrome (LARS) score. Quality of life was evaluated with the EORTC QLQ-C30 and QLQ-CR38. RESULTS The CSPO group had more male patients (65.8% vs. 50%, p = 0.042), more preoperative chemoradiotherapy (33.3% vs. 10.6%, p < 0.001), lower tumor position (3.45 ± 1.13 vs. 4.24 ± 0.86 cm, p < 0.001), and more postoperative chemotherapy (65% vs. 13.6%, p < 0.001) compared to the ISR group. In addition, CSPO patients had shorter postoperative stay (6.63 ± 2.53 vs. 7.85 ± 4.73 days, p = 0.003) and comparable stoma reversal rates within 1 year after surgery (92.16% vs. 96.97%, p = 0.318). Multivariable analysis showed that CSPO significantly contributed to higher satisfaction with anal function (beta = 1.752, 95% CI 0.776-2.728) and with quality of life (beta = 1.219, 95% CI 0.374-2.064), but not to Wexner, LARS score, or EORTC QLQ-C30 and QLQ-CR38. CONCLUSION CSPO improved the satisfaction with anal function and quality of life but utilized more preoperative chemoradiotherapy. CSPO may be an alternative choice for patients with very low rectal cancers in better physical health and with higher requirements for anal function and quality of life.
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Affiliation(s)
- G Sun
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, China
- Department of Surgery, University Medical Center Groningen, Groningen, The Netherlands
| | - Y Zang
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - H Ding
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, China
| | - Y Chen
- Department of Epidemiology and Public Health, University College London, London, UK
| | - D Groothof
- Department of Internal Medicine, University Medical Center Groningen, Groningen, The Netherlands
| | - H Gong
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, China
| | - Z Lou
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, China
| | - R Meng
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, China
| | - Z Chen
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China
| | - E Furnee
- Department of Surgery, University Medical Center Groningen, Groningen, The Netherlands
| | - J Xiang
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai, 200040, China.
| | - W Zhang
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai, 200433, China.
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Fan H, Wen R, Zhou L, Gao X, Lou Z, Hao L, Meng R, Gong H, Yu G, Zhang W. Clinicopathological features and prognosis of synchronous and metachronous colorectal cancer: a retrospective cohort study. Int J Surg 2023; 109:4073-4090. [PMID: 37737848 PMCID: PMC10720868 DOI: 10.1097/js9.0000000000000709] [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: 06/05/2023] [Accepted: 08/14/2023] [Indexed: 09/23/2023]
Abstract
BACKGROUND To investigate the clinicopathological features and prognosis of synchronous and metachronous multiple primary colorectal cancer. MATERIALS AND METHODS Patients who underwent operation for synchronous and metachronous colorectal cancer at the colorectal surgery department of Shanghai Changhai Hospital between January 2000 and December 2021 were included. Perioperative indicators were comprehensively compared and included in the survival analyses. RESULTS In total, 563 patients with synchronous ( n =372) and metachronous ( n =191) colorectal cancer were included. Patients with synchronous colorectal cancer were more likely to have a long onset time, positive carcinoembryonic antigen, advanced TNM stage, large tumor, perineural invasion, p53 high expression, and mismatch repair proficient. Compared with metachronous colorectal cancer, patients with synchronous colorectal cancer showed worse 5-year overall survival (68.6±3.0% vs 81.9±3.5%, P =0.018) and 5-year disease-free survival (61.2±3.1% vs 71.0±3.9%, P =0.022). In the subgroup analysis, segmental resection was an independent risk factor for the long-term outcomes of bilateral synchronous colorectal cancer. CONCLUSIONS Clinicopathological and molecular features were different between synchronous and metachronous colorectal cancer. Patients with synchronous colorectal cancer showed a worse prognosis than those with metachronous colorectal cancer. Bilateral synchronous colorectal cancer requires extended resection to achieve improved long-term outcomes.
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Affiliation(s)
| | | | | | | | | | | | | | - Haifeng Gong
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, People’s Republic of China
| | - Guanyu Yu
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, People’s Republic of China
| | - Wei Zhang
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, People’s Republic of China
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Li L, Xu H, Li Z, Liu L, Lou Z, Wang L. CMOS-Compatible Tellurium/Silicon Ultra-Fast Near-Infrared Photodetector. Small 2023; 19:e2303114. [PMID: 37340580 DOI: 10.1002/smll.202303114] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/25/2023] [Indexed: 06/22/2023]
Abstract
High-quality photodetectors are always the main way to obtain external information, especially near-infrared sensors play an important role in remote sensing communication. However, due to the limitation of Silicon (Si) wide bandgap and the incompatibility of most near infrared photoelectric materials with traditional integrated circuits, the development of high performance and wide detection spectrum near infrared detectors suitable for miniaturization and integration is still facing many obstacles. Herein, the monolithic integration of large area tellurium optoelectronic functional units is realized by magnetron sputtering technology. Taking advantage of the type II heterojunction constructed by tellurium (Te) and silicon (Si), the photogenerated carriers are effectively separated, which prolongs the carrier lifetime and improves the photoresponse by several orders of magnitude. The tellurium/silicon (Te/Si) heterojunction photodetector demonstrates excellent detectivity and ultra-fast turn-on time. Importantly, an imaging array (20 × 20 pixels) based on the Te/Si heterojunction is demonstrated and high-contrast photoelectric imaging is realized. Because of the high contrast obtained by the Te/Si array, in comparison with the Si arrays, it significantly improve the efficiency and accuracy of the subsequent processing tasks when the electronic pictures are applied to artificial neural network (ANN) to simulate the artificial vision system.
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Affiliation(s)
- Linlin Li
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hao Xu
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
| | - Zhexin Li
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lingchen Liu
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zheng Lou
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lili Wang
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
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Jiang Y, Hu X, Fan S, Liu W, Chen J, Wang L, Deng Q, Yang J, Yang A, Lou Z, Guan Y, Xia H, Gu B. RVFScan predicts virulence factor genes and hypervirulence of the clinical metagenome. Brief Bioinform 2023; 24:bbad403. [PMID: 37930030 PMCID: PMC10631995 DOI: 10.1093/bib/bbad403] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 09/27/2023] [Accepted: 10/17/2023] [Indexed: 11/07/2023] Open
Abstract
Bacterial infections often involve virulence factors that play a crucial role in the pathogenicity of bacteria. Accurate detection of virulence factor genes (VFGs) is essential for precise treatment and prognostic management of hypervirulent bacterial infections. However, there is a lack of rapid and accurate methods for VFG identification from the metagenomic data of clinical samples. Here, we developed a Reads-based Virulence Factors Scanner (RVFScan), an innovative user-friendly online tool that integrates a comprehensive VFG database with similarity matrix-based criteria for VFG prediction and annotation using metagenomic data without the need for assembly. RVFScan demonstrated superior performance compared to previous assembly-based and read-based VFG predictors, achieving a sensitivity of 97%, specificity of 98% and accuracy of 98%. We also conducted a large-scale analysis of 2425 clinical metagenomic datasets to investigate the utility of RVFScan, the species-specific VFG profiles and associations between VFGs and virulence phenotypes for 24 important pathogens were analyzed. By combining genomic comparisons and network analysis, we identified 53 VFGs with significantly higher abundances in hypervirulent Klebsiella pneumoniae (hvKp) than in classical K. pneumoniae. Furthermore, a cohort of 1256 samples suspected of K. pneumoniae infection demonstrated that RVFScan could identify hvKp with a sensitivity of 90%, specificity of 100% and accuracy of 98.73%, with 90% of hvKp samples consistent with clinical diagnosis (Cohen's kappa, 0.94). RVFScan has the potential to detect VFGs in low-biomass and high-complexity clinical samples using metagenomic reads without assembly. This capability facilitates the rapid identification and targeted treatment of hvKp infections and holds promise for application to other hypervirulent pathogens.
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Affiliation(s)
- Yue Jiang
- Department of Bioinformatics, Hugobiotech Co., Ltd., Beijing 100176, China
| | - Xuejiao Hu
- Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510000, China
| | - Shu Fan
- Department of Bioinformatics, Hugobiotech Co., Ltd., Beijing 100176, China
| | - Weijiang Liu
- Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510000, China
| | - Jingjing Chen
- Pulmonary and Critical Care Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510000, China
| | - Liang Wang
- Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510000, China
| | - Qianyun Deng
- Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510000, China
| | - Jing Yang
- Department of Bioinformatics, Hugobiotech Co., Ltd., Beijing 100176, China
| | - Aimei Yang
- Pediatric Intensive Care Unit, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510000, China
| | - Zheng Lou
- Department of Bioinformatics, Hugobiotech Co., Ltd., Beijing 100176, China
| | - Yuanlin Guan
- Department of Bioinformatics, Hugobiotech Co., Ltd., Beijing 100176, China
| | - Han Xia
- Department of Bioinformatics, Hugobiotech Co., Ltd., Beijing 100176, China
| | - Bing Gu
- Laboratory Medicine, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou 510000, China
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Zhou L, Yu G, Wen R, Jia H, Zhang T, Peng Z, Fan H, Pan A, Yu Y, Zhu X, Gong H, Gao X, Lou Z, Zhang W. Neoadjuvant chemoradiation therapy combined with immunotherapy for microsatellite stable ultra-low rectal cancer (CHOICE II): study protocol of a multicentre prospective randomised clinical trial. BMJ Open 2023; 13:e069793. [PMID: 37709314 PMCID: PMC10503376 DOI: 10.1136/bmjopen-2022-069793] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 08/18/2023] [Indexed: 09/16/2023] Open
Abstract
INTRODUCTION Neoadjuvant chemoradiotherapy (nCRT) could bring tumour shrinking and downstaging and increase the probability of organ preservation for patients with low rectal cancer. But for ultra-low rectal cancer, there is little possibility for organ preservation. Immunotherapy has been shown to have significant survival benefits in microsatellite instability-high patients but poor response in microsatellite stable (MSS) patients. Studies have demonstrated that radiotherapy and immunotherapy have synergistic effects in cancer treatment. There is no existing evidence about the clinical efficacy of immunotherapy combined with nCRT for patients with MSS ultra-low rectal cancer. METHOD AND ANALYSIS This trial is an open-labelled multicentre prospective randomised controlled trial (NCT05215379) with two parallel groups and allocation ratio 1:1 (nCRT+immunotherapy vs nCRT group). Eligible participants will be aged 18-75 years, with a desire for anus preservation, confirmed cT1-3aN0-1M0 rectal adenocarcinoma, confirmed MSS type, inferior margin of ≤5 cm from the anal verge. The primary endpoint of this trial is complete clinical response (cCR) rate. Immunotherapy is added after 1 week of chemoradiotherapy for two cycles, and then the patients will be administered two cycles of immunotherapy and CAPOX. The evaluations will be carried out after the completion of the whole neoadjuvant therapy. We expect the programme to improve the cCR rate and the quality of life for patients with ultra-low rectal cancer. ETHICS AND DISSEMINATION This trial was approved by the Ethics committee of Changhai Hospital and other medical centres (Grant number:CHEC2022-118). The results of this study will provide further insight into the clinical efficacy of immunotherapy in combination with nCRT in patients with MSS ultra-low rectal cancer. TRIAL REGISTRATION NUMBER NCT05215379.
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Affiliation(s)
- Leqi Zhou
- Department of Colorectal Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Guanyu Yu
- Department of Colorectal Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Rongbo Wen
- Department of Colorectal Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Hang Jia
- Department of Colorectal Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Tianshuai Zhang
- Department of Colorectal Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Zhiying Peng
- Department of Colorectal Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Hao Fan
- Department of Colorectal Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Anfu Pan
- Department of Colorectal Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Yue Yu
- Department of Colorectal Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Xiaoming Zhu
- Department of Colorectal Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Haifeng Gong
- Department of Colorectal Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Xianhua Gao
- Department of Colorectal Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Zheng Lou
- Department of Colorectal Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
| | - Wei Zhang
- Department of Colorectal Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, China
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12
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Zheng K, Jin L, Shen F, Gao XH, Zhu XM, Yu GY, Hao LQ, Lou Z, Wang H, Yu ED, Bai CG, Zhang W. [The impact of extended waiting time on tumor regression after neoadjuvant chemoradiotherapy for locally advanced rectal cancer]. Zhonghua Wai Ke Za Zhi 2023; 61:775-781. [PMID: 37491170 DOI: 10.3760/cma.j.cn112139-20230404-00139] [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: 07/27/2023]
Abstract
Objective: To investigate the influence of extending the waiting time on tumor regression after neoadjuvant chemoradiology (nCRT) in patients with locally advanced rectal cancer (LARC). Methods: Clinicopathological data from 728 LARC patients who completed nCRT treatment at the First Affiliated Hospital, Naval Medical University from January 2012 to December 2021 were collected for retrospective analysis. The primary research endpoint was the sustained complete response (SCR). There were 498 males and 230 females, with an age (M(IQR)) of 58 (15) years (range: 22 to 89 years). Logistic regression models were used to explore whether waiting time was an independent factor affecting SCR. Curve fitting was used to represent the relationship between the cumulative occurrence rate of SCR and the waiting time. The patients were divided into a conventional waiting time group (4 to <12 weeks, n=581) and an extended waiting time group (12 to<20 weeks, n=147). Comparisons regarding tumor regression, organ preservation, and surgical conditions between the two groups were made using the t test, Wilcoxon rank sum test, or χ2 test as appropriate. The Log-rank test was used to elucidate the survival discrepancies between the two groups. Results: The SCR rate of all patients was 21.6% (157/728). The waiting time was an independent influencing factor for SCR, with each additional day corresponding to an OR value of 1.010 (95%CI: 1.001 to 1.020, P=0.031). The cumulative rate of SCR occurrence gradually increased with the extension of waiting time, with the fastest increase between the 10th week. The SCR rate in the extended waiting time group was higher (27.9%(41/147) vs. 20.0%(116/581), χ2=3.901, P=0.048), and the organ preservation rate during the follow-up period was higher (21.1%(31/147) vs. 10.7%(62/581), χ2=10.510, P=0.001). The 3-year local recurrence/regrowth-free survival rates were 94.0% and 91.1%, the 3-year disease-free survival rates were 76.6% and 75.4%, and the 3-year overall survival rates were 95.6% and 92.2% for the conventional and extended waiting time groups, respectively, with no statistical differences in local recurrence/regrowth-free survival, disease-free survival and overall survival between the two groups (χ2=1.878, P=0.171; χ2=0.078, P=0.780; χ2=1.265, P=0.261). Conclusions: An extended waiting time is conducive to tumor regression, and extending the waiting time to 12 to <20 weeks after nCRT can improve the SCR rate and organ preservation rate, without increasing the difficulty of surgery or altering the oncological outcomes of patients.
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Affiliation(s)
- K Zheng
- Department of Colorectal Surgery, the First Affiliated Hospital, Naval Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
| | - L Jin
- Department of Colorectal Surgery, the First Affiliated Hospital, Naval Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
| | - F Shen
- Department of Radiology, the First Affiliated Hospital, Naval Medical University, Shanghai 200433, China
| | - X H Gao
- Department of Colorectal Surgery, the First Affiliated Hospital, Naval Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
| | - X M Zhu
- Department of Colorectal Surgery, the First Affiliated Hospital, Naval Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
| | - G Y Yu
- Department of Colorectal Surgery, the First Affiliated Hospital, Naval Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
| | - L Q Hao
- Department of Colorectal Surgery, the First Affiliated Hospital, Naval Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
| | - Z Lou
- Department of Colorectal Surgery, the First Affiliated Hospital, Naval Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
| | - H Wang
- Department of Colorectal Surgery, the First Affiliated Hospital, Naval Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
| | - E D Yu
- Department of Colorectal Surgery, the First Affiliated Hospital, Naval Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
| | - C G Bai
- Department of Pathology, the First Affiliated Hospital, Naval Medical University, Shanghai 200433, China
| | - W Zhang
- Department of Colorectal Surgery, the First Affiliated Hospital, Naval Medical University, Hereditary Colorectal Cancer Center and Genetic Block Center of Familial Cancer, Changhai Hospital, Shanghai 200433, China
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13
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Wen R, Zhou L, Jiang S, Fan H, Zheng K, Yu Y, Gao X, Hao L, Lou Z, Yu G, Yang F, Zhang W. DSTN Hypomethylation Promotes Radiotherapy Resistance of Rectal Cancer by Activating the Wnt/β-Catenin Signaling Pathway. Int J Radiat Oncol Biol Phys 2023; 117:198-210. [PMID: 37019366 DOI: 10.1016/j.ijrobp.2023.03.067] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 03/22/2023] [Accepted: 03/24/2023] [Indexed: 04/05/2023]
Abstract
PURPOSE Although surgical resection combined with neoadjuvant radiation therapy can reduce the local recurrence rate of rectal cancer, not all patients benefit from neoadjuvant radiation therapy. Therefore, screening for patients with rectal cancer who are sensitive or resistant to radiation therapy has great clinical significance. METHODS AND MATERIALS Patients with rectal cancer were selected according to postoperative tumor regression grade, and tumor samples were taken for detection. Differential genes between radiation-resistant and radiation-sensitive tissues were screened and validated by Illumina Infinium MethylationEPIC BeadChip, proteomics, Agena MassARRAY methylation, reverse transcription quantitative real-time polymerase chain reaction, and immunohistochemistry. In vitro and in vivo functional experiments verified the role of DSTN. Protein coimmunoprecipitation, western blot, and immunofluorescence were used to investigate the mechanisms of DSTN-related radiation resistance. RESULTS DSTN was found to be highly expressed (P < .05) and hypomethylated (P < .01) in rectal cancer tissues resistant to neoadjuvant radiation therapy. Follow-up data confirmed that patients with high expression of DSTN in neoadjuvant radiation therapy-resistant rectal cancer tissues had shorter disease-free survival (P < .05). DSTN expression increased after methyltransferase inhibitor inhibition of DNA methylation in colorectal cancer cells (P < .05). In vitro and in vivo experiments showed that knockdown of DSTN promoted the sensitivity of colorectal cancer cells to radiation therapy, and overexpression of DSTN promoted the resistance of colorectal cancer cells to radiation (P < .05). The Wnt/β-catenin signaling pathway was activated in colorectal cancer cells overexpressing DSTN. β-catenin was highly expressed in radiation therapy-resistant tissues, and there was a linear correlation between the expression of DSTN and β-catenin (P < .0001). Further studies showed that DSTN can bind to β-catenin and increase its stability. CONCLUSIONS The degree of DNA methylation and the expression level of DSTN can be used as biomarkers to predict the sensitivity of neoadjuvant radiation therapy for rectal cancer. DSTN and β-catenin are also expected to become a reference for the selection of neoadjuvant radiation therapy.
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Affiliation(s)
- Rongbo Wen
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Leqi Zhou
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Siyuan Jiang
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Hao Fan
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Kuo Zheng
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Yue Yu
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Xianhua Gao
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Liqiang Hao
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Zheng Lou
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Guanyu Yu
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China.
| | - Fu Yang
- Department of Medical Genetics, Naval Medical University, Shanghai, China.
| | - Wei Zhang
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China.
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Lou Z, Lou Z, Lv T, Chen Z. A comparison of radiofrequency Coblation and cold steel excision in the treatment of idiopathic vocal process granulomas. J Laryngol Otol 2023; 137:1003-1009. [PMID: 37403597 DOI: 10.1017/s0022215122001906] [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] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To compare the effectiveness of radiofrequency Coblation assisted excision and cold steel excision in the treatment of idiopathic vocal process granulomas. METHODS A retrospective study was performed of patients with idiopathic vocal process granulomas who underwent radiofrequency Coblation excision or cold steel excision between January 2013 and January 2020. The recurrence rate was compared among the two groups at six months post-operatively. RESULTS Of the 47 patients with vocal process granulomas, 28 were in the cold steel excision (control) group and 19 were in the Coblation-assisted group. The recurrence rate in the control group was significantly higher than that in the Coblation-assisted group (60.7 per cent vs 5.3 per cent; p < 0.001). In addition, the voice recovery of the Coblation-assisted group was significantly better than that of the control group; vocal quality recovered one month after surgery in the Coblation-assisted group. CONCLUSION Radiofrequency Coblation should be considered the optimal method when approaching idiopathic vocal process granulomas surgically.
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Affiliation(s)
- Z Lou
- Department of Otorhinolaryngology, Yiwu Central Hospital, Yiwu City, China
| | - Z Lou
- Department of Otolaryngology - Head and Neck Surgery, Shanghai Jiao Tong University affiliated with Sixth People's Hospital, Shanghai City, China
- Center of Sleep Medicine, Shanghai Jiao Tong University affiliated with Sixth People's Hospital, Shanghai City, China
- Otolaryngological Institute of Shanghai Jiao Tong University, Shanghai City, China
- Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai City, China
| | - T Lv
- Department of Otorhinolaryngology, Yiwu Central Hospital, Yiwu City, China
| | - Z Chen
- Department of Otolaryngology - Head and Neck Surgery, Shanghai Jiao Tong University affiliated with Sixth People's Hospital, Shanghai City, China
- Center of Sleep Medicine, Shanghai Jiao Tong University affiliated with Sixth People's Hospital, Shanghai City, China
- Otolaryngological Institute of Shanghai Jiao Tong University, Shanghai City, China
- Shanghai Key Laboratory of Sleep Disordered Breathing, Shanghai City, China
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15
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Li S, Ji L, Huang J, Wang Y, Liu P, Zhang W, Lou Z. The impact of primary tumor resection for asymptomatic colorectal cancer patients with unresectable metastases: a systematic review and meta-analysis. Int J Colorectal Dis 2023; 38:214. [PMID: 37581775 DOI: 10.1007/s00384-023-04500-y] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/29/2023] [Indexed: 08/16/2023]
Abstract
BACKGROUND Whether patients with asymptomatic primary tumors and unresectable metastases of colorectal cancer (CRC) should undergo primary tumor resection (PTR) remains controversial. This study aims to determine the appropriateness of PTR for these individuals by evaluating a number of outcome measures. METHODS A systematic literature search was performed. Outcome measures included overall survival, emergency surgery rates, incidence of postoperative complications, time to initiate chemotherapy, conversion rates, and chemotherapy-related toxicities. RESULTS Patients who received PTR in addition to chemotherapy had a better overall survival rate than those who only received chemotherapy (HR = 0.62, 95%CI, 0.50-0.78, I2 = 84%, p < 0.00001). In the RCT subgroup, there were no significant differences with a HR of 0.72 (95%CI, 0.45-1.13, I2 = 17%, p = 0.15). More patients in the chemotherapy alone group could be converted to resectable status (OR = 0.47, 95%CI, 0.27-0.82, I2 = 0%, p = 0.008), but the incidence of emergency surgery was 23% (95%CI, 17-29%, I2 = 14%). The risk of chemotherapy-related toxicity was not significantly higher in the PTR group (OR = 1.5, 95%CI, 0.94-2.43, p = 0.09, I2 = 0%), with a 7% incidence of postoperative complications (95%CI, 0-14%, p = 0.05, I2 = 0%). The time to initiate chemotherapy after PTR was approximately 33.06 days (95%CI, 25.55-40.58, I2 = 0%). CONCLUSION PTR plus chemotherapy may be associated with improved survival in asymptomatic CRC patients with unresectable metastases. However, PTR did not provide a significant survival benefit in the subgroup of RCTs. Additionally, PTR did not result in a significantly increased risk of chemotherapy-related toxicity, with a postoperative complication rate of approximately 7%, and chemotherapy could be initiated at approximately 33.06 days after PTR. Compared with the PTR plus chemotherapy, chemotherapy alone could result in a significantly higher conversion rate. However, about 23% of patients receiving chemotherapy alone required emergency surgery for primary tumor-related symptoms. The above results needed to be validated in future larger prospective randomized trials.
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Affiliation(s)
- Shuyuan Li
- Department of Colorectal Surgery, the first affiliated Hospital of Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai, China
| | - Liqiang Ji
- Department of Colorectal Surgery, the first affiliated Hospital of Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai, China
| | - Jie Huang
- The first affiliated Hospital of Naval Medical University, Shanghai, China
| | - Ye Wang
- Department of Colorectal Surgery, the first affiliated Hospital of Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai, China
| | - Peng Liu
- Department of Colorectal Surgery, the first affiliated Hospital of Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai, China
| | - Wei Zhang
- Department of Colorectal Surgery, the first affiliated Hospital of Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai, China
| | - Zheng Lou
- Department of Colorectal Surgery, the first affiliated Hospital of Naval Medical University, 168 Changhai Road, Yangpu District, Shanghai, China.
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Guan X, Jiao S, Wen R, Yu G, Liu J, Miao D, Wei R, Zhang W, Hao L, Zhou L, Lou Z, Liu S, Zhao E, Wang G, Zhang W, Wang X. Optimal examined lymph node number for accurate staging and long-term survival in rectal cancer: a population-based study. Int J Surg 2023; 109:2241-2248. [PMID: 37428195 PMCID: PMC10442141 DOI: 10.1097/js9.0000000000000320] [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: 10/07/2022] [Accepted: 02/20/2023] [Indexed: 07/11/2023]
Abstract
BACKGROUND Although the recommended minimal examined lymph node (ELN) number in rectal cancer (RC) is 12, this standard remains controversial because of insufficient evidence. We aimed to refine this definition by quantifying the relationship between ELN number, stage migration and long-term survival in RC. METHODS Data from a Chinese multi-institutional registry (2009-2018) and the Surveillance, Epidemiology, and End Results (SEER) database (2008-2017) on stages I-III resected RC were analysed to determine the relationship between ELN count, stage migration, and overall survival (OS) using multivariable models. The series of odds ratios (ORs) for negative-to-positive node stage migration and hazard ratios (HRs) for survival with more ELNs were fitted using a Locally Weighted Scatterplot Smoothing (LOWESS) smoother, and structural breakpoints were determined using the Chow test. The relationship between ELN and survival was evaluated on a continuous scale using restricted cubic splines (RCS). RESULTS The distribution of ELN count between the Chinese registry ( n =7694) and SEER database ( n =21 332) was similar. With increasing ELN count, both cohorts exhibited significant proportional increases from node-negative to node-positive disease (SEER, OR, 1.012, P <0.001; Chinese registry, OR, 1.016, P =0.014) and serial improvements in OS (SEER: HR, 0.982; Chinese registry: HR, 0.975; both P <0.001) after controlling for confounders. Cut-point analysis showed an optimal threshold ELN count of 15, which was validated in the two cohorts, with the ability to properly discriminate probabilities of survival. CONCLUSIONS A higher ELN count is associated with more precise nodal staging and better survival. Our results robustly conclude that 15 ELNs are the optimal cut-off point for evaluating the quality of lymph node examination and stratification of prognosis.
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Affiliation(s)
- Xu Guan
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing
- Department of Colorectal Surgery, Shanxi Province Cancer Hospital/Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences/Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan
| | - Shuai Jiao
- Department of Colorectal Surgery, Shanxi Province Cancer Hospital/Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences/Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan
- Department of Colorectal Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin
| | - Rongbo Wen
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai
| | - Guanyu Yu
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai
| | - Jungang Liu
- Department of Gastrointestinal Surgery, Guangxi Medical University Cancer Hospital, Nanning, Guangxi Zhuang Autonomous Region
- Guangxi Clinical Research Center for Colorectal Cancer, Nanning, Guangxi Zhuang Autonomous Region
| | - Dazhuang Miao
- Department of Colorectal Surgery, Harbin Medical University Cancer Hospital, Harbin
| | - Ran Wei
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing
| | - Weiyuan Zhang
- Department of Colorectal Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin
| | - Liqiang Hao
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai
| | - Leqi Zhou
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai
| | - Zheng Lou
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai
| | - Shucheng Liu
- Colorectal Surgery Department, Chifeng Municipal Hospital, Chifeng
| | - Enliang Zhao
- Surgical Oncology Department, The Second Affiliated Hospital of Qiqihar Medical University, Qiqihar, China
| | - Guiyu Wang
- Department of Colorectal Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin
| | - Wei Zhang
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai
| | - Xishan Wang
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing
- Department of Colorectal Surgery, Shanxi Province Cancer Hospital/Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences/Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan
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17
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Liu XL, Fan L, Yue BH, Lou Z. Saikosaponin A mitigates the progression of Parkinson's disease via attenuating microglial neuroinflammation through TLR4/MyD88/NF-κB pathway. Eur Rev Med Pharmacol Sci 2023; 27:6956-6971. [PMID: 37606106 DOI: 10.26355/eurrev_202308_33268] [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: 08/23/2023]
Abstract
OBJECTIVE Neuroinflammation caused by excessive microglial cell activation and the subsequent death of dopaminergic neurons plays a role in the pathogenesis of Parkinson's disease (PD). Saikosaponin A (Ssa), a triterpene saponin derived from Radix Bupleuri, has anti-inflammatory and antioxidant functions. This research aimed to investigate whether Ssa has a therapeutic effect on PD. MATERIALS AND METHODS BV2 microglia- and SH-SY5Y cells were treated with a neurotoxin N-methyl-4- phenylpyridinium (MPP+) and Ssa. Cell viability, apoptosis, inflammatory reactions, and expression levels of oxidative stress mediators were assessed. A PD rat model was created by intraperitoneal injection of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP), followed by the Ssa treatment. Hematoxylin-eosin (H&E) staining, Nissl staining, and immunohistochemistry were used to detect neuronal apoptosis and microglial activation. Open-field test (OFT) was performed to evaluate the locomotion of the rats. The underlying mechanism of Ssa effect in PD was explored using network pharmacology analysis and verified experimentally. RESULTS Ssa dampened neuronal apoptosis and had anti-inflammatory and anti-oxidative stress proprieties in MPP+-treated SH-SY5Y cells and BV2 microglia. As shown in in-vivo experiments, Ssa reduced MPTP-mediated neuronal apoptosis and motor dysfunction and lowered the expression of inflammatory factors and oxidative stressors in the substantia nigra (SN) of the PD rat. Additionally, Ssa inactivated the TLR4/MyD88/NF-κB pathway. CONCLUSIONS This study provides the first evidence that Ssa prevents dopaminergic neurodegeneration caused by microglia activation by modulating the TLR4/MyD88/NF-κB axis.
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Affiliation(s)
- X-L Liu
- Department of Neurology, The First Affiliated Hospital of Hebei North University, Zhangjiakou City, Hebei Province, China.
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18
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Tan X, Lou Z, Zuo Y, Zhang X. Neural-network-based wavefront solution algorithm for a wide field survey telescope. Appl Opt 2023; 62:4987-5002. [PMID: 37707277 DOI: 10.1364/ao.490065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 05/31/2023] [Indexed: 09/15/2023]
Abstract
The wide field survey telescope (WFST) is a 2.5 m optical survey telescope currently under construction in China. The telescope employs a primary-focus optical design to achieve a wide field of view of 3 deg, and its focal plane is equipped with four pairs of curvature sensors to perform wavefront sensing and active optics. Currently, there are several wavefront solution algorithms available for curvature sensors, including the iterative fast Fourier transform method, orthogonal series expansion method, Green's function method, and sensitivity matrix method. However, each of these methods has limitations in practical use. This study proposes a solution method based on a convolutional neural network model with a U-Net structure for the curvature wavefront sensing of the WFST. Numerical simulations show that the model, when properly trained, has a high accuracy and performs a curvature wavefront solution effectively. Upon a comparison with the sensitivity matrix method, this new method demonstrates its superiority. Finally, the study is summarized, and the drawbacks of the proposed method are discussed, which leads to direction for future optimizations.
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Sun G, Lou Z, Zheng K, Chen Y, Zhang H, Wen R, Gao X, Meng R, Gong H, Bai C, Furnée EJB, Zhang W. Comparison of functional and oncological outcome of conformal sphincter preservation operation, low anterior resection, and abdominoperineal resection in very low rectal cancer: a retrospective comparative cohort study with propensity score matching. Langenbecks Arch Surg 2023; 408:208. [PMID: 37222797 DOI: 10.1007/s00423-023-02925-1] [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: 07/30/2022] [Accepted: 04/30/2023] [Indexed: 05/25/2023]
Abstract
PURPOSE Conformal sphincter preservation operation (CSPO) procedure is a sphincter preservation procedure for preserving the anal canal function for very low rectal cancers. This study investigated the functional and oncological outcome of conformal sphincter preservation operation by comparing with low anterior resection (LAR) and abdominoperineal resection (APR). METHODS This is a retrospective comparative study. Patients who received conformal sphincter preservation operation (n = 52), low anterior resection (n = 54), or abdominoperineal resection (n = 69) were included between 2011 and 2016 in a tertiary referral hospital. Propensity score matching was applied to adjust the baseline characteristics which may influence the choice of the surgical procedure. RESULTS Twenty-one pairs of conformal sphincter preservation operation vs. low anterior resection and 29 pairs of conformal sphincter preservation operation vs. abdominoperineal resection were selected. The first group had a higher tumor location than the second group. Compared with the low anterior resection group, the conformal sphincter preservation operation group had shorter distal resection margins; however, no significant differences were identified in daily stool frequency, Wexner incontinence score, local recurrence, distant metastasis, overall survival, and disease-free survival between both groups. Compared with the abdominoperineal resection group, the conformal sphincter preservation operation group had shorter operative time and shorter postoperative hospital stay. No significant differences were identified in local recurrence, distant metastasis, overall survival, and disease-free survival. CONCLUSION Conformal sphincter preservation operation is oncologically safe compared to APR and LAR, and has similar functional findings to LAR. Studies comparing CSPO with intersphincteric resection should be performed.
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Affiliation(s)
- Ge Sun
- Department of Colorectal Surgery, Changhai Hospital, 168 Changhai Rd, Shanghai, 200433, China
- Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Zheng Lou
- Department of Colorectal Surgery, Changhai Hospital, 168 Changhai Rd, Shanghai, 200433, China
| | - Kuo Zheng
- Department of Colorectal Surgery, Changhai Hospital, 168 Changhai Rd, Shanghai, 200433, China
| | - Yuntao Chen
- Department of Epidemiology and Public Health, University College London, London, UK
| | - Hang Zhang
- Department of Colorectal Surgery, Changhai Hospital, 168 Changhai Rd, Shanghai, 200433, China
| | - Rongbo Wen
- Department of Colorectal Surgery, Changhai Hospital, 168 Changhai Rd, Shanghai, 200433, China
| | - Xianhua Gao
- Department of Colorectal Surgery, Changhai Hospital, 168 Changhai Rd, Shanghai, 200433, China
| | - Ronggui Meng
- Department of Colorectal Surgery, Changhai Hospital, 168 Changhai Rd, Shanghai, 200433, China
| | - Haifeng Gong
- Department of Colorectal Surgery, Changhai Hospital, 168 Changhai Rd, Shanghai, 200433, China
| | - Chenguang Bai
- Department of Pathology, Changhai Hospital, Shanghai, China
| | - Edgar J B Furnée
- Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Wei Zhang
- Department of Colorectal Surgery, Changhai Hospital, 168 Changhai Rd, Shanghai, 200433, China.
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Lou Z, Huang Y, Li S, Luo Z, Li C, Chu K, Zhang T, Song P, Zhou J. Global, regional, and national time trends in incidence, prevalence, years lived with disability for uterine fibroids, 1990-2019: an age-period-cohort analysis for the global burden of disease 2019 study. BMC Public Health 2023; 23:916. [PMID: 37208621 DOI: 10.1186/s12889-023-15765-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 04/26/2023] [Indexed: 05/21/2023] Open
Abstract
BACKGROUND Uterine fibroids are the most common benign neoplasm of the uterus and a major source of morbidity for women. We report an overview of trends in uterine fibroids of incidence rate, prevalence rate, years lived with disability (YLDs) rate in 204 countries and territories over the past 30 years and associations with age, period, and birth cohort. METHODS The incident case, incidence rate, age-standardized rate (ASR) for incidence, prevalent case, prevalence rate, ASR for prevalence, number of YLDs, YLD rate, and ASR for YLDs were derived from the Global Burden of Disease 2019 (GBD 2019) study. We utilized an age-period-cohort (APC) model to estimate overall annual percentage changes in the rate of incidence, prevalence, and YLDs (net drifts), annual percentage changes from 10 to 14 years to 65-69 years (local drifts), period and cohort relative risks (period/cohort effects) between 1990 and 2019. RESULTS Globally, the incident cases, prevalent cases, and the number of YLDs of uterine fibroids increased from 1990 to 2019 with the growth of 67.07%, 78.82% and 77.34%, respectively. High Socio-demographic Index (SDI) and high-middle SDI quintiles with decreasing trends (net drift < 0.0%), and increasing trends (net drift > 0.0%) were observed in middle SDI, low-middle SDI, and low SDI quintiles in annual percentage change of incidence rate, prevalence rate and YLDs rate over the past 30 years. There were 186 countries and territories that showed an increasing trend in incidence rate, 183 showed an increasing trend in prevalence rate and 174 showed an increasing trend in YLDs rate. Moreover, the effects of age on uterine fibroids increased with age and peaked at 35-44 years and then declined with advancing age. Both the period and cohort effects on uterine fibroids showed increasing trend in middle SDI, low-middle SDI and low SDI quintiles in recent 15 years and birth cohort later than 1965. CONCLUSIONS The global burden of uterine fibroids is becoming more serious in middle SDI, low-middle SDI and low SDI quintiles. Raising awareness of uterine fibroids, increasing medical investment and improving levels of medical care are necessary to reduce future burden.
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Affiliation(s)
- Zheng Lou
- Department of Gynecology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yizhou Huang
- Department of Gynecology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shuting Li
- School of Public Health, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, China
| | - Zhou Luo
- Department of Gynecology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chunming Li
- Department of Gynecology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ketan Chu
- Department of Gynecology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Tao Zhang
- Department of Gynecology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Peige Song
- School of Public Health and Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jianhong Zhou
- Department of Gynecology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
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21
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Wen R, Zhou L, Peng Z, Fan H, Zhang T, Jia H, Gao X, Hao L, Lou Z, Cao F, Yu G, Zhang W. Single-cell sequencing technology in colorectal cancer: a new technology to disclose the tumor heterogeneity and target precise treatment. Front Immunol 2023; 14:1175343. [PMID: 37256123 PMCID: PMC10225552 DOI: 10.3389/fimmu.2023.1175343] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 04/24/2023] [Indexed: 06/01/2023] Open
Abstract
Colorectal Cancer (CRC) is one of the most common gastrointestinal tumors, and its high tumor heterogeneity makes traditional sequencing methods incapable of obtaining information about the heterogeneity of individual cancer cells in CRC. Therefore, single-cell sequencing technology can be applied to better analyze the differences in genetic and protein information between cells, to obtain genomic sequence information of single cells, and to more thoroughly analyze the cellular characteristics and interactions in the CRC microenvironment. This will provide a more comprehensive understanding of colorectal cancer development and metastasis and indicate the treatment plan and prognosis. In this study, we review the application of single-cell sequencing to analyze the tumor microenvironment of CRC, explore the mechanisms involved in CRC metastasis and progression, and provide a reference for potential treatment options.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Fuao Cao
- *Correspondence: Wei Zhang, ; Guanyu Yu, ; Fuao Cao,
| | - Guanyu Yu
- *Correspondence: Wei Zhang, ; Guanyu Yu, ; Fuao Cao,
| | - Wei Zhang
- *Correspondence: Wei Zhang, ; Guanyu Yu, ; Fuao Cao,
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22
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Yan Y, Li Z, Li L, Lou Z. Stereopsis-Inspired 3D Visual Imaging System Based on 2D Ruddlesden-Popper Perovskite. Small 2023:e2300831. [PMID: 37035967 DOI: 10.1002/smll.202300831] [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] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/15/2023] [Indexed: 06/19/2023]
Abstract
Stereopsis is of great important functions for humans to perceive and interact with the world. To realize the function of stereoscopic imaging, optoelectronic sensors shall possess good photoresponsive performance, multidirectional sensing, and 3D building capabilities. However, the current imaging sensors are mainly focused on 2D imaging, limiting their practical application scenarios. In this study, a stereopsis-inspired flexible 3D visual imaging system (VIS) based on 2D Ruddlesden-Popper perovskite is demonstrated. The 3D-VIS consists of 800 device units, each of which demonstrates excellent photoresponse performance, mechanical characteristics, and environmental stability. In addition to the capability of detecting 2D reflective images, the 3D-VIS realizes the function of detecting the depth of field and fusing object projections of two directions to invert the 3D image by utilizing voxels to rebuild the spatial structure of the object. In the future, the 3D-VIS will have broad application prospects in medical imaging, virtual reality, industrial automation, and other fields.
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Affiliation(s)
- Yongxu Yan
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences & Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100083, P.R. China
| | - Zhexin Li
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences & Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100083, P.R. China
| | - Linlin Li
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences & Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100083, P.R. China
| | - Zheng Lou
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences & Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100083, P.R. China
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23
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Wang Y, Lou Z, Meng RG, Ji LQ, Li SY, Zheng K, Jin L, Gong HF, Liu LJ, Hao LQ, Zhang W. [Advances in tumor regression patterns and safe distance of distal resection margin after neoadjuvant therapy for rectal cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2023; 26:302-306. [PMID: 36925132 DOI: 10.3760/cma.j.cn441530-20220627-00280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Neoadjuvant therapy has been widely applied in the treatment of rectal cancer, which can shrink tumor size, lower tumor staging and improve the prognosis. It has been the standard preoperative treatment for patients with locally advanced rectal cancer. The efficacy of neoadjuvant therapy for rectal cancer patients varies between individuals, and the results of tumor regression are obviously different. Some patients with good tumor regression even achieve pathological complete response (pCR). Tumor regression is of great significance for the selection of surgical regimes and the determination of distal resection margin. However, few studies focus on tumor regression patterns. Controversies on the safe distance of distal resection margin after neoadjuvant treatment still exist. Therefore, based on the current research progress, this review summarized the main tumor regression patterns after neoadjuvant therapy for rectal cancer, and classified them into three types: tumor shrinkage, tumor fragmentation, and mucin pool formation. And macroscopic regression and microscopic regression of tumors were compared to describe the phenomenon of non-synchronous regression. Then, the safety of non-surgical treatment for patients with clinical complete response (cCR) was analyzed to elaborate the necessity of surgical treatment. Finally, the review studied the safe surgical resection range to explore the safe distance of distal resection margin.
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Affiliation(s)
- Y Wang
- Department of Colorectal Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - Z Lou
- Department of Colorectal Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - R G Meng
- Department of Colorectal Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - L Q Ji
- Department of Colorectal Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - S Y Li
- Department of Colorectal Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - K Zheng
- Department of Colorectal Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - L Jin
- Department of Colorectal Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - H F Gong
- Department of Colorectal Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - L J Liu
- Department of Colorectal Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - L Q Hao
- Department of Colorectal Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - W Zhang
- Department of Colorectal Surgery, the First Affiliated Hospital of Naval Medical University, Shanghai 200433, China
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Lou Z, Huang Y, Lan Y, Li C, Chu K, Chen P, Xu W, Ma L, Zhou J. Relationship between years since menopause and lipid variation in postmenopausal women: A cross-sectional study. Medicine (Baltimore) 2023; 102:e32684. [PMID: 36637918 PMCID: PMC9839288 DOI: 10.1097/md.0000000000032684] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Lipid alteration in postmenopausal women is commonly due to hormonal changes. This study aimed to explore the association between the years since menopause and lipid profiles in postmenopausal women. In this cross-sectional study, a total of 1033 postmenopausal women were recruited from the Women's Hospital of Zhejiang University in China between 2015 and 2022. Each participant was interviewed using questionnaires regarding sociodemographic and reproductive data. Anthropometric measurements, lipid profiles, and reproductive hormone levels were assessed. Participants were divided into 3 groups based on the length of time since menopause: 2, 2 to 5.9, and 6 years. Differences in lipid profiles and reproductive hormones among the groups were compared. Logistic and linear regression analyses were used to examine the relationship between years after menopause and lipid profile. High-density lipoprotein cholesterol (HDL-C) and luteinizing hormone levels were significantly lower in postmenopausal women with time since menopause of ≥6 years than those <2 years (P < .05), whereas low-density lipoprotein cholesterol levels were significantly higher (P < .05). A longer time after menopause was independently associated with lower HDL-C levels (β, -0.059, standard error, 0.023, P = .01) after adjustment for age, body mass index, and other confounders. Compared to women who had menopause for <2 years, those who were postmenopausal for >6 years had lower HDL-C levels after adjustment for age, body mass index, and other covariates (β, -0.123, 95% confidence interval, [-0.221, -0.014], P = .014). Longer time since menopause was associated with an atherogenic lipid profile with appreciably low levels of HDL-C subfraction. Future multicenter studies are necessary to examine postmenopausal population and determine how differences in lipids influence the risk of cardiovascular disease in this group.
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Affiliation(s)
- Zheng Lou
- Department of Gynecology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yizhou Huang
- Department of Gynecology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yibing Lan
- Department of Gynecology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chunming Li
- Department of Gynecology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ketan Chu
- Department of Gynecology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Peiqiong Chen
- Department of Gynecology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wenxian Xu
- Department of Gynecology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Linjuan Ma
- Department of Gynecology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jianhong Zhou
- Department of Gynecology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou, China
- * Correspondence: Jianhong Zhou, Department of Gynecology, Women’s Hospital, Zhejiang University School of Medicine, 1 Xueshi Rd, Hangzhou 310006, People’s Republic of China (e-mail: )
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25
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Xin C, Lai Y, Ji L, Wang Y, Li S, Hao L, Zhang W, Meng R, Xu J, Hong Y, Lou Z. A novel 9-gene signature for the prediction of postoperative recurrence in stage II/III colorectal cancer. Front Genet 2023; 13:1097234. [PMID: 36704343 PMCID: PMC9871489 DOI: 10.3389/fgene.2022.1097234] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 12/19/2022] [Indexed: 01/11/2023] Open
Abstract
Background: Individualized recurrence risk prediction in patients with stage II/III colorectal cancer (CRC) is crucial for making postoperative treatment decisions. However, there is still a lack of effective approaches for identifying patients with stage II and III CRC at a high risk of recurrence. In this study, we aimed to establish a credible gene model for improving the risk assessment of patients with stage II/III CRC. Methods: Recurrence-free survival (RFS)-related genes were screened using Univariate Cox regression analysis in GSE17538, GSE39582, and GSE161158 cohorts. Common prognostic genes were identified by Venn diagram and subsequently subjected to least absolute shrinkage and selection operator (LASSO) regression analysis and multivariate Cox regression analysis for signature construction. Kaplan-Meier (K-M), calibration, and receiver operating characteristic (ROC) curves were used to assess the predictive accuracy and superiority of our risk model. Single-sample gene set enrichment analysis (ssGSEA) was employed to investigate the relationship between the infiltrative abundances of immune cells and risk scores. Genes significantly associated with the risk scores were identified to explore the biological implications of the 9-gene signature. Results: Survival analysis identified 347 RFS-related genes. Using these genes, a 9-gene signature was constructed, which was composed of MRPL41, FGD3, RBM38, SPINK1, DKK1, GAL3ST4, INHBB, CTB-113P19.1, and FAM214B. K-M curves verified the survival differences between the low- and high-risk groups classified by the 9-gene signature. The area under the curve (AUC) values of this signature were close to or no less than the previously reported prognostic signatures and clinical factors, suggesting that this model could provide improved RFS prediction. The ssGSEA algorithm estimated that eight immune cells, including regulatory T cells, were aberrantly infiltrated in the high-risk group. Furthermore, the signature was associated with multiple oncogenic pathways, including cell adhesion and angiogenesis. Conclusion: A novel RFS prediction model for patients with stage II/III CRC was constructed using multicohort validation. The proposed signature may help clinicians better manage patients with stage II/III CRC.
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Affiliation(s)
- Cheng Xin
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Yi Lai
- Department of Head and Neck Surgery, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | | | - Ye Wang
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Shihao Li
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Liqiang Hao
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Wei Zhang
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Ronggui Meng
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Jun Xu
- Department of Gastrointestinal Surgery, Changhai Hospital, Shanghai, China,*Correspondence: Jun Xu, ; Yonggang Hong, ; Zheng Lou,
| | - Yonggang Hong
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China,*Correspondence: Jun Xu, ; Yonggang Hong, ; Zheng Lou,
| | - Zheng Lou
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China,*Correspondence: Jun Xu, ; Yonggang Hong, ; Zheng Lou,
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Zhou S, Yang Y, Lou Z, Liang J, Wang X, Tang J, Liu Q. Establishing and validating predictive nomograms for lateral pelvic lymph node metastasis in patients with rectal cancer based on radiologic factors and clinicopathologic characteristics. Eur J Surg Oncol 2022; 49:747-754. [PMID: 36604232 DOI: 10.1016/j.ejso.2022.12.014] [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] [Received: 06/12/2022] [Revised: 10/24/2022] [Accepted: 12/24/2022] [Indexed: 12/31/2022]
Abstract
INTRODUCTION It is critical to accurately predict the occurrence of lateral pelvic lymph node (LPN) metastasis. Currently, verified predictive tools are unavailable. This study aims to establish nomograms for predicting LPN metastasis in patients with rectal cancer who received or did not receive neoadjuvant chemoradiotherapy (nCRT). MATERIALS AND METHODS We carried out a retrospective study of patients with rectal cancer and clinical LPN metastasis who underwent total mesorectal excision (TME) and LPN dissection (LPND) from January 2012 to December 2019 at 3 institutions. We collected and evaluated their clinicopathologic and radiologic features, and constructed nomograms based on the multivariable logistic regression models. RESULTS A total of 472 eligible patients were enrolled into the non-nCRT cohort (n = 312) and the nCRT cohort (n = 160). We established nomograms using variables from the multivariable logistic regression models in both cohorts. In the non-nCRT cohort, the variables included LPN short diameter, cT stage, cN stage, histologic grade, and malignant features, and the C-index was 0.930 in the training cohort and 0.913 in the validation cohort. In the nCRT cohort, the variables included post-nCRT LPN short diameter, ycT stage, ycN stage, histologic grade, and post-nCRT malignant features, and the C-index was 0.836 in the training dataset and 0.827 in the validation dataset. The nomograms in both cohorts were moderately calibrated and well-validated. CONCLUSIONS We established nomograms for patients with rectal cancer that accurately predict LPN metastasis. The performance of the nomograms in both cohorts was high and well-validated.
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Affiliation(s)
- Sicheng Zhou
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Yingchi Yang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing Key Laboratory of Cancer Invasion and Metastasis Research and National Clinical Research Center of Digestive Diseases, Beijing, 100050, China
| | - Zheng Lou
- Department of Colorectal Surgery, The First Affiliated Hospital, Navy Medical University, Shanghai, 200433, China
| | - Jianwei Liang
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China
| | - Xin Wang
- Department of General Surgery, Peking University First Hospital, Beijing, 100034, China
| | - Jianqiang Tang
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China; Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Hebei Cancer Hospital, Chinese Academy of Medical Sciences, Langfang, 065001, China.
| | - Qian Liu
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100021, China.
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Chen L, Zhao Y, Wei J, Huang W, Ma Y, Yang X, Liu Y, Wang J, Xia H, Lou Z. Metagenomic Next-Generation Sequencing for the Diagnosis of Neonatal Infectious Diseases. Microbiol Spectr 2022; 10:e0119522. [PMID: 36409152 PMCID: PMC9769891 DOI: 10.1128/spectrum.01195-22] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 10/28/2022] [Indexed: 11/23/2022] Open
Abstract
Infectious diseases pose a fatal risk to neonates. Timely and accurate pathogen detection is crucial for proper clinical diagnosis and therapeutic strategies. Limited sample volumes from neonatal patients seriously hindered the accurate detection of pathogens. Here, we unravel that metagenomic next-generation sequencing (mNGS) of cell-free DNA (cfDNA) and RNA can achieve unbiased detection of trace pathogens from different kinds of body fluid samples and blood samples. We enrolled 168 neonatal patients with suspected infections from whom blood samples (n = 153), cerebrospinal fluid samples (n = 127), and respiratory tract samples (RTSs) (including bronchoalveolar lavage fluids, sputa, and respiratory secretions) (n = 51) were collected and analyzed using mNGS. High rates of positivity (70.2%; 118/168) of mNGS were observed, and the coincidence rate against the final clinical diagnosis in positive mNGS cases reached 68.6% (81/118). The most common causative pathogens were Klebsiella pneumoniae (n = 12), Escherichia coli (n = 12), and Streptococcus pneumoniae (n = 8). mNGS using cfDNA and RNA can identify microbes that cannot be detected by conventional methods in different body fluid and blood samples, and more than 50% of these microbes were identified as causative pathogens. Further local polynomial regression fitting analysis revealed that the best timing for mNGS detection ranged from 1 to 3 days after the start of continuous antimicrobial therapy. Diagnosed and guided by mNGS results, the therapeutic regimens for 86 out of 117 neonatal patients were changed, most of whom (80/86) completely recovered and were discharged, while 44 out of 86 patients completely or partially stopped unnecessary medication. Our findings highlight the importance of mNGS in detecting causative DNA and RNA pathogens in infected neonatal patients. IMPORTANCE To the best of our knowledge, this is the first report on evaluating the performance of mNGS using cfDNA and RNA from body fluid and blood samples for diagnosing neonatal infections. mNGS of RNA and cfDNA can achieve the unbiased detection and identification of trace pathogens from different kinds of neonatal body fluid and blood samples with a high total coincidence rate (226/331; 68.3%) against final clinical diagnoses by sample. The best timing for mNGS detection in neonatal infections ranged from 1 to 3 days, rather than 0 days, after the start of continuous antimicrobial therapy. Our findings highlight the importance of mNGS in detecting causative DNA and RNA pathogens, and the extensive application of mNGS for the diagnosis of neonatal infections can be expected.
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Affiliation(s)
- Lu Chen
- Xi’an Children’s Hospital, Xi’an, China
| | | | | | | | - Ying Ma
- Xi’an Children’s Hospital, Xi’an, China
| | - Xuefeng Yang
- Neonatal Intensive Care Department, Xi’an Children’s Hospital, Xi’an, China
| | - Yang Liu
- Xi’an Children’s Hospital, Xi’an, China
| | - Jing Wang
- Department of Scientific Affairs, Hugobiotech Co., Ltd., Beijing, China
| | - Han Xia
- Department of Scientific Affairs, Hugobiotech Co., Ltd., Beijing, China
| | - Zheng Lou
- Department of Scientific Affairs, Hugobiotech Co., Ltd., Beijing, China
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Zheng K, Hu Q, Yu G, Zhou L, Yao Y, Zhou Y, Wang H, Hao L, Yu E, Lou Z, Zhang Y, Qiu H, Meng R, Zhang W. Trends of sphincter-preserving surgeries for low lying rectal cancer: A 20-year experience in China. Front Oncol 2022; 12:996866. [PMID: 36568186 PMCID: PMC9773833 DOI: 10.3389/fonc.2022.996866] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 11/14/2022] [Indexed: 12/13/2022] Open
Abstract
Background Over the last 2 decades, patients with low rectal cancer have had better outcomes from improvements in surgical techniques in sphincter preservation. We aimed to quantify the trends in sphincter-preserving surgeries for low rectal cancer over 20 years in a top tertiary hospital in China. Methods Between 1999 and 2021, a cohort of patients with primary malignant rectal tumor ≤5cm from the anal verge and who received elective surgeries at Changhai Hospital, Shanghai, China, was identified. Data were extracted from electronic medical records. A Joinpoint Regression Model was used to analyze trends in surgical procedures by average annual percentage change (AAPC). Adjusted Cox proportional hazards regression model was used to assess overall survival. Results Among a total of 4,172 patients during the study period, 3,111 (74.6%) underwent a sphincter-preserving surgery and 1,061 (25.4%) received APR. Sphincter-preserving surgery increased 3.6% per year (95%CI, 2.3-4.9). Low anterior resection was the most performed procedure (86.3%) and maintained a steady trend, while intersphincteric resection increased 49.4% annually (95%CI, 19.5-86.7) after initiation. Laparoscopic techniques increased 15.1% per year (95%CI, 8.4-43.4) after initiation. Sphincter-preserving surgery increased annually for tumors ≤2cm, 2-≤3cm and 3-≤4cm from the anal verge (AAPC 7.1, 4.5-9.8; 4.7, 3.1-6.3; 2.7, 1.7-3.6, respectively). Furthermore, patients with sphincter-preserving surgery had a better overall survival than abdominoperineal resection (APR) patients (adjusted HR 0.78, 95% CI, 0.65-0.93, p=.01). Conclusions Utilization of sphincter-preserving surgeries increased significantly over the last 20 years. Patients with low rectal cancer who underwent sphincter preservation had better survival than similar patients who underwent APR.
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Affiliation(s)
- Kuo Zheng
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Qingqing Hu
- Global Epidemiology, Office of Chief Medical Officer, Johnson & Johnson, Shanghai, China
| | - Guanyu Yu
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Leqi Zhou
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Yuting Yao
- Department of Professional Education, Johnson & Johnson Medical (Shanghai) LTD, Shanghai, China
| | - Yuan Zhou
- Department of Professional Education, Johnson & Johnson Medical (Shanghai) LTD, Shanghai, China
| | - Hao Wang
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Liqiang Hao
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Enda Yu
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Zheng Lou
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Yongjing Zhang
- Global Epidemiology, Office of Chief Medical Officer, Johnson & Johnson, Shanghai, China
| | - Hong Qiu
- Global Epidemiology, Office of Chief Medical Officer, Johnson & Johnson, Shanghai, China
| | - Ronggui Meng
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Wei Zhang
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China,*Correspondence: Wei Zhang,
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Chen Q, Hou K, Tang M, Ying S, Zhao X, Li G, Pan J, He X, Xia H, Li Y, Lou Z, Zhang L. Screening of potential microbial markers for lung cancer using metagenomic sequencing. Cancer Med 2022; 12:7127-7139. [PMID: 36480163 PMCID: PMC10067086 DOI: 10.1002/cam4.5513] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 07/12/2022] [Accepted: 11/24/2022] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION Lung cancer is the most prevalent cancer with high mortality in China, and it is associated with the dysbiosis of the lung microbiome. This study attempted to screen for specific microorganisms as potential biomarkers for distinguishing benign lung disease from lung cancer. METHODS Bronchoalveolar lavage fluid (BALF) sample was selected in the study instead of saliva to avoid contamination with oral microorganisms, and microbial taxonomic and functional differences in BALF samples from patients with lung cancer and those with those from patients with benign lung diseases were performed based on metagenomic next-generation sequencing, for the first time, so that microorganisms other than bacteria could be included. RESULTS The results showed that the intrasample diversity of malignant samples was different from benign samples, and the microbial differences among malignant samples were smaller, with lower microbial diversity, significantly changed microbial abundance and metabolic functions. Metabolic function analysis revealed amino acid-related metabolism was more prevalent in benign samples, whereas carbohydrate-related metabolism was more prevalent in malignant samples. By LEfSe, Metastat and Random Forest analysis, we identified a series of important differential microorganisms. Importantly, the model combining five key genera plus one tumor marker (neuron-specific enolase) as indicators presented the optimal disease typing performance. CONCLUSION Thus results suggest the value of these differential microorganisms enriched in tumors in mechanism research and may be potential new targets for lung cancer therapy. More importantly, the biomarkers identified in this study can be conducive to improve the clinical diagnosis of lung cancer and have good application prospects.
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Affiliation(s)
| | - Kai Hou
- Tianjin Chest Hospital Tianjin China
- Tianjin Medical University Tianjin China
| | | | - Shuo Ying
- Tianjin Chest Hospital Tianjin China
| | | | | | | | | | - Han Xia
- Hugobiotech Co., Ltd. Beijing China
| | | | | | - Li Zhang
- Tianjin Chest Hospital Tianjin China
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Wang Y, Lou Z, Zhang W. [Surgical strategy for stoma creation in the challenging patients]. Zhonghua Wei Chang Wai Ke Za Zhi 2022; 25:961-964. [PMID: 36396369 DOI: 10.3760/cma.j.cn441530-20220711-00299] [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: 06/16/2023]
Abstract
Stoma is a commonly used surgical procedure in clinic practice. However, for obese patients with thick abdominal wall, short and thickened mesentery, and for patients with intestinal obstruction and abdominal distension (difficult stoma), establishing a tension- free and well blood-supplied stoma is still a great challenge. Careful preoperative planning, including stoma location marking, careful consideration of all alternatives and attention to technical details, will help to make an optimal stoma under challenging conditions. For enterostomy of obese patients, the pullout intestine must be free of tension and must have sufficient blood supply, the structure of the abdominal wall should be incised vertically, and the intestine should be pulled out vertically as well. For enterostomy of patients with intestinal obstruction, the diameter of the stoma incision should not exceed 3 cm to avoid parastomal hernia, which commonly occurs after bowel retraction.
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Affiliation(s)
- Y Wang
- Department of Colorectal Surgery, the First Affiliated Hospital of Navy Medical University, Shanghai 200433, China
| | - Z Lou
- Department of Colorectal Surgery, the First Affiliated Hospital of Navy Medical University, Shanghai 200433, China
| | - W Zhang
- Department of Colorectal Surgery, the First Affiliated Hospital of Navy Medical University, Shanghai 200433, China
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Tang J, Zhou S, Zhao W, Lou Z, Liang J, Feng B, Yang Y, Wang X, Liu Q. Short- and long-term outcomes of laparoscopic versus open selective lateral pelvic lymph node dissection for locally advanced middle-low rectal cancer: Results of a multicentre lateral node study in China. Colorectal Dis 2022; 24:1325-1334. [PMID: 35713974 DOI: 10.1111/codi.16223] [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] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 06/07/2022] [Accepted: 06/11/2022] [Indexed: 02/08/2023]
Abstract
AIM Lateral pelvic lymph node dissection (LPND) is a technically challenging procedure, and the safety and feasibility of laparoscopic LPND remains undetermined. Here, we compared the short- and long-term survival outcomes of laparoscopic LPND with those of open LPND. METHODS From January 2012 to December 2019, locally advanced middle-low rectal cancer patients with clinical evidence of lateral pelvic lymph node metastasis (LPNM) who underwent total mesorectal excision with LPND at three institutions were included. Propensity score matching was used to minimize selection bias. The short-term and oncological outcomes of open and laparoscopic LPND were compared. RESULTS Overall, 384 patients were enrolled into the study including 277 and 107 patients who underwent laparoscopic and open LPND, respectively. After matching, patients were stratified into laparoscopic (n = 100) and open (n = 100) LPND groups. Patients in the laparoscopic LPND group had a shorter operation time (255 vs. 300 min, p = 0.001), less intraoperative blood loss (50 vs. 300 ml, p < 0.001), lower incidence of postoperative complications (32.0% vs. 15.0%, p = 0.005), shorter postoperative hospital stay (8 vs. 14 days, p < 0.001), and excision of more lateral pelvic lymph nodes (9 vs. 7, p = 0.025) than those in the open LPND group. The 3-year overall survival (p = 0.581) and 3-year disease-free survival (p = 0.745) rates were similar between the groups, and LPNM was an independent predictor of survival. CONCLUSION Laparoscopic LPND is technically safe and feasible with favourable short-term results and similar oncological outcomes as open surgery in selected patients.
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Affiliation(s)
- Jianqiang Tang
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Hebei Cancer Hospital, Chinese Academy of Medical Sciences, Langfang, China
| | - Sicheng Zhou
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wei Zhao
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zheng Lou
- Department of Colorectal Surgery, Changhai Hospital, Nava Military Medical University, Shanghai, China
| | - Jianwei Liang
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Bo Feng
- Department of Gastrointestinal Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Minimally Invasive Surgery Center, Shanghai, China
| | - Yingchi Yang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Xin Wang
- Department of General Surgery, Peking University First Hospital, Beijing, China
| | - Qian Liu
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Feng Q, Yuan W, Li T, Tang B, Jia B, Zhou Y, Zhang W, Zhao R, Zhang C, Cheng L, Zhang X, Liang F, He G, Wei Y, Xu J, Feng Q, Wei Y, He G, Liang F, Yuan W, Sun Z, Li T, Tang B, Tang B, Gao L, Jia B, Li P, Zhou Y, Liu X, Zhang W, Lou Z, Zhao R, Zhang T, Zhang C, Li D, Cheng L, Chi Z, Zhang X, Yang G. Robotic versus laparoscopic surgery for middle and low rectal cancer (REAL): short-term outcomes of a multicentre randomised controlled trial. Lancet Gastroenterol Hepatol 2022; 7:991-1004. [PMID: 36087608 DOI: 10.1016/s2468-1253(22)00248-5] [Citation(s) in RCA: 83] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 07/15/2022] [Accepted: 07/17/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Robotic surgery for rectal cancer is gaining popularity, but evidence on long-term oncological outcomes is scarce. We aimed to compare surgical quality and long-term oncological outcomes of robotic and conventional laparoscopic surgery in patients with middle and low rectal cancer. Here we report the short-term outcomes of this trial. METHODS This multicentre, randomised, controlled, superiority trial was done at 11 hospitals in eight provinces of China. Eligible patients were aged 18-80 years with middle (>5 to 10 cm from the anal verge) or low (≤5 cm from the anal verge) rectal adenocarcinoma, cT1-T3 N0-N1 or ycT1-T3 Nx, and no evidence of distant metastasis. Central randomisation was done by use of an online system and was stratified according to participating centre, sex, BMI, tumour location, and preoperative chemoradiotherapy. Patients were randomly assigned at a 1:1 ratio to receive robotic or conventional laparoscopic surgery. All surgical procedures complied with the principles of total mesorectal excision or partial mesorectal excision (for tumours located higher in the rectum). Lymph nodes at the origin of the inferior mesenteric artery were dissected. In the robotic group, the excision procedures and dissection of lymph nodes were done by use of robotic techniques. Neither investigators nor patients were masked to the treatment allocation but the assessment of pathological outcomes was masked to the treatment allocation. The primary endpoint was 3-year locoregional recurrence rate, but the data for this endpoint are not yet mature. Secondary short-term endpoints are reported in this article, including two key secondary endpoints: circumferential resection margin positivity and 30-day postoperative complications (Clavien-Dindo classification grade II or higher). The outcomes were analysed according in a modified intention-to-treat population (according to the original assigned groups and excluding patients who did not undergo surgery or no longer met inclusion criteria after randomisation). This trial was registered with ClinicalTrials.gov, number NCT02817126. Study recruitment has completed, and the follow-up is ongoing. FINDINGS Between July 17, 2016, and Dec 21, 2020, 1742 patients were assessed for eligibility. 502 patients were excluded, and 1240 patients were enrolled and randomly assigned to receive either robotic surgery (620 patients) or laparoscopic surgery (620 patients). 69 patients were excluded (34 in the robotic surgery group and 35 in the laparoscopic surgery group). 1171 patients were included in the modified intention-to-treat analysis (586 in the robotic group and 585 in the laparoscopic group). Six patients in the robotic surgery group received laparoscopic surgery and seven patients in the laparoscopic surgery group received robotic surgery. 22 (4·0%) of 547 patients in the robotic group had a positive circumferential resection margin as did 39 (7·2%) of 543 patients in the laparoscopic group (difference -3·2 percentage points [95% CI -6·0 to -0·4]; p=0·023). 95 (16·2%) of patients in the robotic group had at least one postoperative complication (Clavien-Dindo grade II or higher) within 30 days after surgery, as did 135 (23·1%) of 585 patients in the laparoscopic group (difference -6·9 percentage points [-11·4 to -2·3]; p=0·003). More patients in the robotic group had a macroscopic complete resection than in the laparoscopic group (559 [95·4%] of 586 patients vs 537 [91·8%] of 585 patients, difference 3·6 percentage points [0·8 to 6·5]). Patients in the robotic group had better postoperative gastrointestinal recovery, shorter postoperative hospital stay (median 7·0 days [IQR 7·0 to 11·0] vs 8·0 days [7·0 to 12·0], difference -1·0 [95% CI -1·0 to 0·0]; p=0·0001), fewer abdominoperineal resections (99 [16·9%] of 586 patients vs 133 [22·7%] of 585 patients, difference -5·8 percentage points [-10·4 to -1·3]), fewer conversions to open surgery (10 [1·7%] of 586 patients vs 23 [3·9%] of 585 patients, difference -2·2 percentage points [-4·3 to -0·4]; p=0·021), less estimated blood loss (median 40·0 mL [IQR 30·0 to 100·0] vs 50·0 mL [40·0 to 100·0], difference -10·0 [-20·0 to -10·0]; p<0·0001), and fewer intraoperative complications (32 [5·5%] of 586 patients vs 51 [8·7%] of 585 patients; difference -3·3 percentage points [-6·3 to -0·3]; p=0·030) than patients in the laparoscopic group. INTERPRETATION Secondary short-term outcomes suggest that for middle and low rectal cancer, robotic surgery resulted in better oncological quality of resection than conventional laparoscopic surgery, with less surgical trauma, and better postoperative recovery. FUNDING Shenkang Hospital Development Center, Shanghai Municipal Health Commission (Shanghai, China), and Zhongshan Hospital Fudan University (Shanghai, China).
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Affiliation(s)
- Qingyang Feng
- Department of Colorectal Surgery, Zhongshan Hospital Fudan University, Shanghai, China; Shanghai Engineering Research Center of Colorectal Cancer Minimally Invasive Technology, Shanghai, China
| | - Weitang Yuan
- Department of Colorectal Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Taiyuan Li
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi Province, China
| | - Bo Tang
- Department of General Surgery, Southwest Hospital, Army Medical University, Chongqing, China
| | - Baoqing Jia
- Department of General Surgery, The First Medical Center, PLA General Hospital, Beijing, China
| | - Yanbing Zhou
- Department of Gastrointestinal Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong Province, China
| | - Wei Zhang
- Department of Colorectal Surgery, Changhai Hospital, Navy Medical University, Shanghai, China
| | - Ren Zhao
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Cheng Zhang
- Department of General Surgery, Northern Theater Command General Hospital, Shenyang, Liaoning Province, China
| | - Longwei Cheng
- Second Department of Gastrointestinal Surgery, Jilin Cancer Hospital, Changchun, Jilin Province, China
| | - Xiaoqiao Zhang
- Department of General Surgery, The 960th Hospital of the PLA Joint Logistic Support Force, Jinan, Shandong Province, China; Department of General Surgery, Shandong Provincial Hospital affiliated to the Shandong First Medical University, Jinan, Shandong Province, China
| | - Fei Liang
- Department of Biostatistics, Zhongshan Hospital Fudan University, Shanghai, China
| | - Guodong He
- Department of Colorectal Surgery, Zhongshan Hospital Fudan University, Shanghai, China; Shanghai Engineering Research Center of Colorectal Cancer Minimally Invasive Technology, Shanghai, China
| | - Ye Wei
- Department of Colorectal Surgery, Zhongshan Hospital Fudan University, Shanghai, China; Shanghai Engineering Research Center of Colorectal Cancer Minimally Invasive Technology, Shanghai, China
| | - Jianmin Xu
- Department of Colorectal Surgery, Zhongshan Hospital Fudan University, Shanghai, China; Shanghai Engineering Research Center of Colorectal Cancer Minimally Invasive Technology, Shanghai, China.
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Yu L, Zhang Y, Zhou J, Zhang Y, Qi X, Bai K, Lou Z, Li Y, Xia H, Bu H. Metagenomic next-generation sequencing of cell-free and whole-cell DNA in diagnosing central nervous system infections. Front Cell Infect Microbiol 2022; 12:951703. [PMID: 36237422 PMCID: PMC9551220 DOI: 10.3389/fcimb.2022.951703] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 08/29/2022] [Indexed: 11/30/2022] Open
Abstract
Background Central nervous system (CNS) infections pose a fatal risk to patients. However, the limited sample volumes of cerebrospinal fluid (CSF) and low detection efficiency seriously hinder the accurate detection of pathogens using conventional methods. Methods We evaluated the performance of metagenomics next-generation sequencing (mNGS) in diagnosing CNS infections. CSF samples from 390 patients clinically diagnosed with CNS infections were used for the mNGS of cell-free DNA (cfDNA) (n =394) and whole-cell DNA (wcDNA) (n =150). Results The sensitivity of mNGS using cfDNA was 60.2% (237/394, 95% confidence interval [CI] 55.1%–65.0%), higher than that of mNGS using wcDNA (32.0%, 95% [CI] 24.8%–40.2%, 48/150) and conventional methods (20.9%, 95% [CI] 16.2%–26.5%, 54/258) (P < 0.01, respectively). The accuracy of mNGS using cfDNA in positive samples was 82.6%. Most of viral (72.6%) and mycobacterial (68.8%) pathogens were only detected by the mNGS of cfDNA. Meningitis and encephalitis with Streptococcus pneumoniae infection might be more likely to result in critically ill diseases, while Human alphaherpesvirus 3 was prone to cause non-critically ill diseases. Conclusions This is the first report on evaluating and emphasizing the importance of mNGS using CSF cfDNA in diagnosing CNS infections, and its extensive application in diagnosing CNS infections could be expected, especially for viral and mycobacterial CNS infections.
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Affiliation(s)
- Lili Yu
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Ye Zhang
- Department of Scientific Affairs, Hugobiotech Co., Ltd., Beijing, China
| | - Jiemin Zhou
- Department of Scientific Affairs, Hugobiotech Co., Ltd., Beijing, China
| | - Yu Zhang
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Xuejiao Qi
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Kaixuan Bai
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Zheng Lou
- Department of Scientific Affairs, Hugobiotech Co., Ltd., Beijing, China
| | - Yi Li
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Han Xia
- Department of Scientific Affairs, Hugobiotech Co., Ltd., Beijing, China
- *Correspondence: Hui Bu, ; Han Xia,
| | - Hui Bu
- Department of Neurology, The Second Hospital of Hebei Medical University, Shijiazhuang, China
- *Correspondence: Hui Bu, ; Han Xia,
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Zhao S, Ran W, Lou Z, Li L, Poddar S, Wang L, Fan Z, Shen G. Neuromorphic-computing-based adaptive learning using ion dynamics in flexible energy storage devices. Natl Sci Rev 2022; 9:nwac158. [PMCID: PMC9646995 DOI: 10.1093/nsr/nwac158] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 07/09/2022] [Accepted: 07/14/2022] [Indexed: 11/16/2022] Open
Abstract
High-accuracy neuromorphic devices with adaptive weight adjustment are crucial for high-performance computing. However, limited studies have been conducted on achieving selective and linear synaptic weight updates without changing electrical pulses. Herein, we propose high-accuracy and self-adaptive artificial synapses based on tunable and flexible MXene energy storage devices. These synapses can be adjusted adaptively depending on the stored weight value to mitigate time and energy loss resulting from recalculation. The resistance can be used to effectively regulate the accumulation and dissipation of ions in single devices, without changing the external pulse stimulation or preprogramming, to ensure selective and linear synaptic weight updates. The feasibility of the proposed neural network based on the synapses of flexible energy devices was investigated through training and machine learning. The results indicated that the device achieved a recognition accuracy of ∼95% for various neural network calculation tasks such as numeric classification.
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Affiliation(s)
- Shufang Zhao
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences & Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences , Beijing 100083 , China
| | - Wenhao Ran
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences & Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences , Beijing 100083 , China
| | - Zheng Lou
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences & Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences , Beijing 100083 , China
| | - Linlin Li
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences & Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences , Beijing 100083 , China
| | - Swapnadeep Poddar
- Department of Electronic & Computer Engineering, The Hong Kong University of Science and Technology , Hong Kong , China
| | - Lili Wang
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences & Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences , Beijing 100083 , China
| | - Zhiyong Fan
- Department of Electronic & Computer Engineering, The Hong Kong University of Science and Technology , Hong Kong , China
| | - Guozhen Shen
- School of Integrated Circuits and Electronics, Beijing Institute of Technology , Beijing 100081 , China
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Zhou S, Tang J, Liang J, Lou Z, Fu W, Feng B, Yang Y, Xiao Y, Liu Q. Effective dissecting range and prognostic significance of lateral pelvic lymph node dissection for middle-low rectal cancer patients with lateral pelvic lymph node metastasis: Results of a large multicenter lateral node collaborative group in China. Front Oncol 2022; 12:916285. [PMID: 36033473 PMCID: PMC9413157 DOI: 10.3389/fonc.2022.916285] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 07/22/2022] [Indexed: 11/25/2022] Open
Abstract
Background Lateral pelvic lymph node (LPN) metastasis causes increased lateral local recurrence and poor prognosis. We aimed to investigate the prognostic significance and effective range of dissection for the LPN dissection (LPND) in rectal cancer patients with LPN metastasis. Materials and methods Through this large, multicenter retrospective cohort study, we evaluated the therapeutic effect of LPND. From January 2012 to December 2019, 387 rectal cancer patients with clinical evidence of LPN metastasis who underwent total mesorectal excision with LPND were included in the study. According to pathological findings, they were divided into negative (n = 296) and positive (n = 91) LPN groups. Primary endpoints were 3-year overall survival (OS), recurrence-free survival (RFS), and local recurrence-free survival (LRFS). Results The OS, RFS, and LRFS in the positive group were significantly worse than those in the negative group; However, LPN metastases were not independent prognostic risk factors for LRFS (hazard ratio [HR]: 2.42; 95% confidence interval [CI], 0.77–7.64; P=0.132). Among patients with pathological LPN metastases, LPN metastases to the common and external iliac arteries were independent prognostic risk factors both for OS (HR: 4.74; 95% CI, 1.74–12.90; P=0.002) and RFS (HR: 2.70; 95% CI, 1.16–6.29; P=0.021). No significant difference was observed in the 3-year OS (72.3% vs. 70.2%, P=0.775) and RFS rates (60.9% vs. 52.6%, P=0.408) between patients with metastases to the obturator or internal iliac arteries and patients at N2b stage. Conclusions LPND may be effective in controlling local recurrence in patients with LPN metastasis but not systemic metastases. Patients with LPN metastasis limited to the internal iliac and obturator regions achieve a long-term survival benefit from LPND, and their prognoses may be comparable to those at the N2b stage. Further metastasis to the external iliac or common iliac region should be considered systemic disease, and LPND should be avoided. Clinical Trial Registration ClinicalTrials.gov, identifier NCT04850027.
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Affiliation(s)
- Sicheng Zhou
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jianqiang Tang
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jianwei Liang
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zheng Lou
- Department of Colorectal Surgery, The first affiliated hospital, Navy Medical University, Shanghai, China
| | - Wei Fu
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Bo Feng
- Department of General Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yingchi Yang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing Key Laboratory of Cancer Invasion and Metastasis Research and National Clinical Research Center of Digestive Diseases, Beijing, China
| | - Yi Xiao
- Department of General Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
- *Correspondence: Yi Xiao, ; Qian Liu,
| | - Qian Liu
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- *Correspondence: Yi Xiao, ; Qian Liu,
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Zhou S, Tang J, Mei S, Lou Z, Fu W, Feng B, Yang Y, Sun Y, Liu Q. Risk factors and prognostic significance of postoperative complications following lateral pelvic lymph node dissection for rectal cancer: results of the multicenter lateral node study in China. Jpn J Clin Oncol 2022; 52:1150-1158. [PMID: 35858237 DOI: 10.1093/jjco/hyac109] [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] [Received: 04/06/2022] [Accepted: 06/23/2022] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE Total mesorectal excision (TME) plus lateral pelvic lymph node (LPN) dissection (LPND) is a technically complex and challenging procedure with higher morbidity than TME alone. We aimed to investigate the risk factors for postoperative complications after TME + LPND, and the impact of complications on patient prognosis. METHODS A total of 387 rectal cancer patients with clinical LPN metastasis (LPNM) who underwent TME + LPND at three institutions affiliated with the Chinese Lateral Node Collaborative Group were included. Logistic regression models were used to identify the risk factors for post-surgical complications, and the log-rank test was used to compare the prognosis. Severe complications were described as grade III-V. RESULTS The incidence rates of overall complications and severe complications after TME + LPND were 15.2% (59/387) and 7.8% (30/387), respectively. Multivariate analysis showed that a duration of operation ≥260 min was an independent risk factor for both overall (odds ratio [OR] = 3.03, 95% confidence interval [CI] = 1.57-5.85, P = 0.001) and severe postoperative complications (OR = 2.67, 95% CI = 1.06-6.73, P = 0.037). The development of overall postoperative complications (P = 0.114) and severe postoperative complications (P = 0.298) had no significant impact on the overall survival. However, patients with overall complications (P = 0.015) or severe complications (P = 0.031) with a postoperative hospital stay >30 days had significantly an overall worse survival. CONCLUSION A surgical duration of ≥260 min is a significant risk factor for both overall and severe postoperative complications after TME + LPND for middle-low rectal cancer. Furthermore, the development of overall complications or severe complications that require a postoperative hospital stay >30 days significantly worsens the prognosis.
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Affiliation(s)
- Sicheng Zhou
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jianqiang Tang
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Hebei Cancer Hospital, Chinese Academy of Medical Sciences, Langfang, China
| | - Shiwen Mei
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Zheng Lou
- Department of Colorectal Surgery, Changhai Hospital, Nava Military Medical University, Shanghai, China
| | - Wei Fu
- Department of Gastrointestinal Surgery, Affiliated Hospital, Xuzhou Medical College, Xuzhou, China
| | - Bo Feng
- Department of Gastrointestinal Surgery, RuiJin Hospital, Shanghai Jiao Tong University School of Medicine; Shanghai Minimally Invasive Surgery Center, Shanghai, China
| | - Yingchi Yang
- Department of General Surgery, Beijing Friendship Hospital, Capital Medical University; National Clinical Research Center for Digestive Diseases, Beijing, China
| | - Yi Sun
- Department of Anorectal, Tianjin People's Hospital, Tianjin, China
| | - Qian Liu
- Department of Colorectal Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Liu J, Liu K, Wang H, Hu H, Sun G, Ye X, Lou Z, Bian J, Bo L. Effect of Perioperative Intravenous Lidocaine on Postoperative Recovery in Patients Undergoing Ileostomy Closure: Study Protocol for a Randomized Controlled Trial. J Pain Res 2022; 15:1863-1872. [PMID: 35813030 PMCID: PMC9259056 DOI: 10.2147/jpr.s362911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 06/17/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Jia Liu
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, People’s Republic of China
| | - Kun Liu
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, People’s Republic of China
| | - Huixian Wang
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, People’s Republic of China
| | - Hongli Hu
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, People’s Republic of China
| | - Guolin Sun
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, People’s Republic of China
| | - Xiaofei Ye
- Department of Health Statistics, Naval Medical University, Shanghai, People’s Republic of China
| | - Zheng Lou
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, People’s Republic of China
| | - Jinjun Bian
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, People’s Republic of China
| | - Lulong Bo
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, People’s Republic of China
- Correspondence: Lulong Bo; Jinjun Bian, Faculty of Anaesthesiology, Changhai Hospital, Naval Medical University, Shanghai, 200433, People’s Republic of China, Tel +86-2131161839, Email ;
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Du Y, Li X, Liu Y, Mu S, Shen D, Fan S, Lou Z, Zhang S, Xia H, Yuan Y, Wang S. The Species Identification and Genomic Analysis of Haemobacillus shengwangii: A Novel Pathogenic Bacterium Isolated From a Critically Ill Patient With Bloodstream Infection. Front Microbiol 2022; 13:919169. [PMID: 35774464 PMCID: PMC9237643 DOI: 10.3389/fmicb.2022.919169] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 05/17/2022] [Indexed: 11/17/2022] Open
Abstract
Since the first strain related to Thermicanaceae was reported in 1999, almost no literature on Thermicanaceae is available, particularly its genomics. We recently isolated a novel pathogenic bacterium, the △ strain DYY3, from the blood sample of a critically ill patient. The morphological, physiological, and biochemical characteristics of △ strain DYY3 were presented in this study, and the virulence factor genes and antibiotic resistance of DYY3 were also determined. Interestingly, the average nucleotide identity (ANI) and core-genes average amino acid identity (cAAI) analysis indicated that △ strain DYY3 was genus novel and species novel. Moreover, phylogenetic analysis based on both 16S rRNA gene and whole genomic core gene sequences suggested that △ strain DYY3 belonged to the family Thermicanaceae, and this novel taxon was thus named Haemobacillus shengwangii gen. nov., sp. nov. Besides, both the whole genome-based phylogenetic tree and amino acid identity analysis indicated that Thermicanus aegyptius, Hydrogenibacillus schlegelii, Brockia lithotrophica, and the newly discovered species H. shengwangii should belong to Thermicanaceae at the family level, and T. aegyptius was the closest species to H. shengwangii. We also constructed the first high-quality genome in the family Thermicanaceae using the next-generation sequencing (NGS) and single-molecule real-time (SMRT) sequencing technologies, which certainly contributed to further genomics studies and metagenomic-based pathogenic detection in the future.
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Affiliation(s)
- Yingying Du
- Department of Critical Care Medicine, School of Medicine, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
| | - Xuming Li
- Department of Scientific Affairs, Hugo Biotech Co., Ltd., Beijing, China
| | - Yuhao Liu
- Department of Critical Care Medicine, School of Medicine, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
| | - Shikui Mu
- Department of Critical Care Medicine, School of Medicine, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
| | - Dandan Shen
- Department of Clinical Microbiology, School of Medicine, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
| | - Shu Fan
- Department of Scientific Affairs, Hugo Biotech Co., Ltd., Beijing, China
| | - Zheng Lou
- Department of Scientific Affairs, Hugo Biotech Co., Ltd., Beijing, China
| | - Shouqin Zhang
- Department of Critical Care Medicine, School of Medicine, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
| | - Han Xia
- Department of Scientific Affairs, Hugo Biotech Co., Ltd., Beijing, China
- *Correspondence: Han Xia,
| | - Yinghua Yuan
- Department of Clinical Microbiology, School of Medicine, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
- Yinghua Yuan,
| | - Sheng Wang
- Department of Critical Care Medicine, School of Medicine, Shanghai Tenth People’s Hospital, Tongji University, Shanghai, China
- Sheng Wang,
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Li Y, Li X, Lou Z, Chen C. Long Short-Term Memory-Based Music Analysis System for Music Therapy. Front Psychol 2022; 13:928048. [PMID: 35774954 PMCID: PMC9237431 DOI: 10.3389/fpsyg.2022.928048] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 05/12/2022] [Indexed: 12/04/2022] Open
Abstract
Music can express people's thoughts and emotions. Music therapy is to stimulate and hypnotize the human brain by using various forms of music activities, such as listening, singing, playing and rhythm. With the empowerment of artificial intelligence, music therapy technology has made innovative development in the whole process of "diagnosis, treatment and evaluation." It is necessary to make use of the advantages of artificial intelligence technology to innovate music therapy methods, ensure the accuracy of treatment schemes, and provide more paths for the development of the medical field. This paper proposes an long short-term memory (LSTM)-based generation and classification algorithm for multi-voice music data. A Multi-Voice Music Generation system called MVMG based on the algorithm is developed. MVMG contains two main steps. At first, the music data are modeled to the MDPI and text sequence data by using an autoencoder model, including music features extraction and music clip representation. And then an LSTM-based music generation and classification model is developed for generating and analyzing music in specific treatment scenario. MVMG is evaluated based on the datasets collected by us: the single-melody MIDI files and the Chinese classical music dataset. The experiment shows that the highest accuracy of the autoencoder-based feature extractor can achieve 95.3%. And the average F1-score of LSTM is 95.68%, which is much higher than the DNN-based classification model.
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Affiliation(s)
- Ya Li
- College of Music, Hainan Normal University, Haikou, China
| | - Xiulai Li
- Hainan Hairui Zhong Chuang Technol Co. Ltd., Haikou, China
| | - Zheng Lou
- College of Music, Hainan Normal University, Haikou, China
| | - Chaofan Chen
- Hainan Hairui Zhong Chuang Technol Co. Ltd., Haikou, China
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Lu H, Du Y, Pan T, Lou Z, Li H, Liao Y, Wang L. Gardnerella vaginalis purulent meningitis in an adolescent male: a case report. BMC Neurol 2022; 22:217. [PMID: 35690718 PMCID: PMC9188035 DOI: 10.1186/s12883-022-02733-y] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 05/27/2022] [Indexed: 11/16/2022] Open
Abstract
Background We report a rare case of Gardnerella vaginalis found in the cerebrospinal fluid of a young boy. Case presentation A 14-year-old boy was admitted to hospital with headache, vomiting, fever, drowsiness and positive meningeal irritation signs on examination. Cerebrospinal fluid (CSF) shows white blood cell and protein were elevated, and glucose was low. Traditional aerobic and anaerobic culture of CSF did not grow any organisms. However, metagenomic next-generation sequencing (mNGS) reveals G. vaginalis in his CSF. The patient was diagnosed with purulent meningitis, and treated with intravenous meropenem and linezolid for a week, followed by oral administration of amoxicillin for two weeks. He recovered without sequelae. Conclusions Purulent meningitis caused by Gardnerella vaginalis is extremely rare. Metagenomic next-generation sequencing of CSF should be highlighted for early diagnosis. With effective antibiotic treatment, the prognosis was excellent.
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Affiliation(s)
- Hongji Lu
- Department of Neurocritical Care, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
| | - Yaming Du
- Department of Neurocritical Care, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
| | - Tao Pan
- Department of Neurocritical Care, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
| | - Zheng Lou
- Department of Scientific Affairs, Hugobiotech Co., Ltd., Beijing, People's Republic of China
| | - Huiping Li
- Department of Neurocritical Care, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
| | - Yingdi Liao
- Department of Neurocritical Care, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China
| | - Lixin Wang
- Department of Neurocritical Care, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, China.
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Duan Z, Gao Y, Liu B, Sun B, Li S, Wang C, Liu D, Wang K, Zhang Y, Lou Z, Xie L, Xie F. The Application Value of Metagenomic and Whole-Genome Capture Next-Generation Sequencing in the Diagnosis and Epidemiological Analysis of Psittacosis. Front Cell Infect Microbiol 2022; 12:872899. [PMID: 35734579 PMCID: PMC9207344 DOI: 10.3389/fcimb.2022.872899] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 05/10/2022] [Indexed: 01/16/2023] Open
Abstract
BackgroundTo evaluate the value of metagenomic next-generation sequencing (mNGS) for the early diagnosis of psittacosis, and to investigate its epidemiology by whole-genome capture.MethodsTwenty-one bronchoalveolar lavage fluid (BALF) and blood samples of 16 psittacosis patients from multiple centers during August 2019 to September 2021 were analyzed retrospectively. mNGS with normal datasets (10 M 75-bp single-end reads after sequencing) and larger datasets (30 M 150-bp paired-end reads after sequencing) as well as quantitative real-time polymerase chain reaction (qPCR) were used to detect the pathogen. Also, whole-genome capture of Chlamydophila psittaci was applied to draw the phylogenetic tree.ResultsmNGS successfully detected the pathogen in all 16 cases (100%), while qPCR was positive only in 5 out of 10 cases (50%), indicating a significantly higher sensitivity of mNGS than qPCR (p < 0.01). BALF-mNGS performed better than blood-mNGS (16/16 versus 3/5, p < 0.05). In addition, larger datasets (the read counts have tripled, and the base number was 12-fold larger compared to clinical mNGS with a normal dataset) of mNGS showed significantly increased contents of human DNA (p < 0.05) and decreased reads per million of the pathogen, suggesting no improvement. Whole-genome capture results of five samples (>60% coverage and >1 depth) were used to construct the phylogenetic tree.ConclusionSignificant advantages of mNGS with normal datasets were demonstrated in early diagnosing psittacosis. It is the first study to use whole-genome capture to analyze C. psittaci epidemiological information.
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Affiliation(s)
- Zhimei Duan
- College of Pulmonary and Critical Care Medicine, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Yanqiu Gao
- Respiratory Intensive Care Unit, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Bin Liu
- Characteristic Medical Center, the Chinese People’s Armed Police Forces, Tianjin, China
| | - Baohua Sun
- Department of the Respiratory and Critical Care Medicine, Cangzhou Central Hospital, Cangzhou, China
| | - Shuangfeng Li
- Respiratory Intensive Care Unit, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Chenlei Wang
- Department of the Respiratory and Critical Care Medicine, Cangzhou Central Hospital, Cangzhou, China
| | - Dongli Liu
- Department of the Respiratory and Critical Care Medicine, Yan’an University Affiliated Hospital, Yan’an, China
| | - Kaifei Wang
- College of Pulmonary and Critical Care Medicine, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
| | - Ye Zhang
- Department of Scientific Affairs, Hugobiotech Co., Ltd., Beijing, China
| | - Zheng Lou
- Department of Scientific Affairs, Hugobiotech Co., Ltd., Beijing, China
- *Correspondence: Fei Xie, ; Lixin Xie, ; Zheng Lou,
| | - Lixin Xie
- College of Pulmonary and Critical Care Medicine, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
- *Correspondence: Fei Xie, ; Lixin Xie, ; Zheng Lou,
| | - Fei Xie
- College of Pulmonary and Critical Care Medicine, Chinese People’s Liberation Army (PLA) General Hospital, Beijing, China
- *Correspondence: Fei Xie, ; Lixin Xie, ; Zheng Lou,
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Zhou L, Yu Y, Wen R, Zheng K, Jiang S, Zhu X, Sui J, Gong H, Lou Z, Hao L, Yu G, Zhang W. Development and Validation of an 8-Gene Signature to Improve Survival Prediction of Colorectal Cancer. Front Oncol 2022; 12:863094. [PMID: 35619909 PMCID: PMC9127348 DOI: 10.3389/fonc.2022.863094] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 03/29/2022] [Indexed: 01/07/2023] Open
Abstract
Background Most prognostic signatures for colorectal cancer (CRC) are developed to predict overall survival (OS). Gene signatures predicting recurrence-free survival (RFS) are rarely reported, and postoperative recurrence results in a poor outcome. Thus, we aim to construct a robust, individualized gene signature that can predict both OS and RFS of CRC patients. Methods Prognostic genes that were significantly associated with both OS and RFS in GSE39582 and TCGA cohorts were screened via univariate Cox regression analysis and Venn diagram. These genes were then submitted to least absolute shrinkage and selection operator (LASSO) regression analysis and followed by multivariate Cox regression analysis to obtain an optimal gene signature. Kaplan-Meier (K-M), calibration curves and receiver operating characteristic (ROC) curves were used to evaluate the predictive performance of this signature. A nomogram integrating prognostic factors was constructed to predict 1-, 3-, and 5-year survival probabilities. Function annotation and pathway enrichment analyses were used to elucidate the biological implications of this model. Results A total of 186 genes significantly associated with both OS and RFS were identified. Based on these genes, LASSO and multivariate Cox regression analyses determined an 8-gene signature that contained ATOH1, CACNB1, CEBPA, EPPHB2, HIST1H2BJ, INHBB, LYPD6, and ZBED3. Signature high-risk cases had worse OS in the GSE39582 training cohort (hazard ratio [HR] = 1.54, 95% confidence interval [CI] = 1.42 to 1.67) and the TCGA validation cohort (HR = 1.39, 95% CI = 1.24 to 1.56) and worse RFS in both cohorts (GSE39582: HR = 1.49, 95% CI = 1.35 to 1.64; TCGA: HR = 1.39, 95% CI = 1.25 to 1.56). The area under the curves (AUCs) of this model in the training and validation cohorts were all around 0.7, which were higher or no less than several previous models, suggesting that this signature could improve OS and RFS prediction of CRC patients. The risk score was related to multiple oncological pathways. CACNB1, HIST1H2BJ, and INHBB were significantly upregulated in CRC tissues. Conclusion A credible OS and RFS prediction signature with multi-cohort and cross-platform compatibility was constructed in CRC. This signature might facilitate personalized treatment and improve the survival of CRC patients.
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Affiliation(s)
- Leqi Zhou
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Yue Yu
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Rongbo Wen
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Kuo Zheng
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Siyuan Jiang
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Xiaoming Zhu
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Jinke Sui
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Haifeng Gong
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Zheng Lou
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Liqiang Hao
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Guanyu Yu
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
| | - Wei Zhang
- Department of Colorectal Surgery, Changhai Hospital, Shanghai, China
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Ji LQ, Lou Z, Gong HF, Sui JK, Cao FA, Yu GY, Zhu XM, Zheng NX, Meng RG, Zhang W. [A prospective cohort study on the clinical value of pelvic peritoneal reconstruction in laparoscopic anterior resection for middle and low rectal cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2022; 25:336-341. [PMID: 35461202 DOI: 10.3760/cma.j.cn441530-20210520-00214] [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 investigate the safety and efficacy of pelvic peritoneal reconstruction and its effect on anal function in laparoscopy-assisted anterior resection of low and middle rectal cancer. Methods: A prospective cohort study was conducted. Consecutive patients with low and middle rectal cancer who underwent laparoscopy-assisted transabdominal anterior resection at Naval Military Medical University Changhai Hospital from February 2020 to February 2021 were enrolled. Inclusion criteria: (1) the distance from tumor to the anal verge ≤10 cm; (2) laparoscopy-assisted transabdominal anterior resection of rectal cancer; (3) complete clinical data; (4) rectal adenocarcinoma diagnosed by postoperative pathology. Exclusion criteria: (1) emergency surgery; (2) patients with a history of anal dysfunction or anal surgery; (3) preoperative diagnosis of distant (liver, lung) metastasis; (4) intestinal obstruction; (5) conversion to open surgery for various reasons. The pelvic floor was reconstructed using SXMD1B405 (Stratafix helical PGA-PCL, Ethicon). The first needle was sutured from the left anterior wall of the neorectum to the right. Insertion of the needle was continued to suture the root of the sigmoid mesentery while the Hemo-lok was used to fix the suture. The second needle was started from the beginning of the first needle, after 3-4 needles, a drainage tube was inserted through the left lower abdominal trocar to the presacral space. Then, the left peritoneal incision of the descending colon was sutured, after which Hemo-lok fixation was performed. The operative time, perioperative complications, postoperative Wexner anal function score and low anterior resection syndrome (LARS) score were compared between the study group and the control group. Three to six months after the operation, pelvic MRI was performed to observe and compare the pelvic floor anatomical structure of the two groups. Results: A total of 230 patients were enrolled, including 58 who underwent pelvic floor peritoneum reconstruction as the study group and 172 who did not undergo pelvic floor peritoneum reconstruction as the control group. There were no significant differences in general data between the two groups (all P>0.05). The operation time of the study group was longer than that of control group [(177.5±33.0) minutes vs. (148.7±45.5) minutes, P<0.001]. There was no significant difference in the incidence of perioperative complications (including anastomotic leakage, anastomotic bleeding, postoperative pneumonia, urinary tract infection, deep vein thrombosis, and intestinal obstruction) between the two groups (all P>0.05). Eight cases had anastomotic leakage, of whom 2 cases (3.4%) in the study group were discharged after conservative treatment, 5 cases (2.9%) of other 6 cases (3.5%) in the control group were discharged after the secondary surgical treatment. The Wexner score and LARS score were 3.1±2.8 and 23.0 (16.0-28.0) in the study group, which were lower than those in the control group [4.7±3.4 and 27.0 (18.0-32.0)], and the differences were statistically significant (t=-3.018, P=0.003 and Z=-2.257, P=0.024). Severe LARS was 16.5% (7/45) in study group and 35.5% (50/141) in control group, and the difference was no significant differences (Z=4.373, P=0.373). Pelvic MRI examination 3 to 6 months after surgery showed that the incidence of intestinal accumulation in the pelvic floor was 9.1% (3/33) in study group and 46.4% (64/138) in control group (χ(2)=15.537, P<0.001). Conclusion: Pelvic peritoneal reconstruction using stratafix in laparoscopic anterior resection of middle and low rectal cancer is safe and feasible, which may reduce the probability of the secondary operation in patients with anastomotic leakage and significantly improve postoperative anal function.
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Affiliation(s)
- L Q Ji
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - Z Lou
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - H F Gong
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - J K Sui
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - F A Cao
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - G Y Yu
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - X M Zhu
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - N X Zheng
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - R G Meng
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
| | - W Zhang
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai 200433, China
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Gan Z, Liu J, Wang Y, Yang L, Lou Z, Xia H, Li M, Chen Z, Jiang Y, Peng F. Performance of Metagenomic Next-Generation Sequencing for the Diagnosis of Cryptococcal Meningitis in HIV-Negative Patients. Front Cell Infect Microbiol 2022; 12:831959. [PMID: 35531340 PMCID: PMC9069553 DOI: 10.3389/fcimb.2022.831959] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 03/14/2022] [Indexed: 11/13/2022] Open
Abstract
Objectives Metagenomic next-generation sequencing (mNGS) has been applied more and more widely for the diagnosis of infectious diseases, but its performance in the diagnosis of cryptococcal meningitis (CM) remains unclear. Methods Cerebrospinal fluid (CSF) samples from 197 HIV-negative patients with suspected central nervous system infections were tested simultaneously by mNGS and routine methods [India ink staining, fungal culture, or cryptococcal antigen (CrAg) tests]. The performance of mNGS was evaluated. Results Of the 197 enrolled cases, 46 (23.4%) cases were finally diagnosed with CM, including 43 (93.5%) Cryptococcus neoformans infections and 3 (6.5%) Cryptococcus gattii infections. The sensitivity, specificity, positive predictive value, negative predictive value, and concordance rate of mNGS were 93.5% [95% confidence interval (CI) at 86.4%~100.0%], 96.0% (95% CI at 92.9%~99.1%), 87.8%, 98.0%, and 95.4%, respectively. Comparing to the conventional diagnostic methods, the sensitivity and concordance rate of mNGS were slightly lower than those of CrAg tests (97.4%) but higher than those of India ink (63.0%) and culture (76.7%). Besides, mNGS had a sensitivity of 100.0% against culture. It should be noted that mNGS could identify Cryptococcus at species level; C. gattii of the 3 cases was only distinguished by mNGS. Conclusions CSF mNGS can be considered as a supplementary test to diagnose CM and directly distinguish C. gattii from C. neoformans in clinical specimens.
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Affiliation(s)
- Zhouqing Gan
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jia Liu
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yijie Wang
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Lu Yang
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zheng Lou
- Department of Scientific Affairs, Hugobiotech Co., Ltd., Beijing, China
| | - Han Xia
- Department of Scientific Affairs, Hugobiotech Co., Ltd., Beijing, China
| | - Min Li
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhuolin Chen
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Ying Jiang
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- *Correspondence: Ying Jiang, ; Fuhua Peng,
| | - Fuhua Peng
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- *Correspondence: Ying Jiang, ; Fuhua Peng,
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Sun H, Wang F, Zhang M, Xu X, Li M, Gao W, Wu X, Han H, Wang Q, Yao G, Lou Z, Xia H, Shi Y, Li Q. Diagnostic Value of Bronchoalveolar Lavage Fluid Metagenomic Next-Generation Sequencing in Pneumocystis jirovecii Pneumonia in Non-HIV Immunosuppressed Patients. Front Cell Infect Microbiol 2022; 12:872813. [PMID: 35463643 PMCID: PMC9024294 DOI: 10.3389/fcimb.2022.872813] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 03/14/2022] [Indexed: 11/13/2022] Open
Abstract
Introduction This study aims to assess the value of metagenomic next-generation sequencing (mNGS) of bronchoalveolar lavage fluid (BALF) in the diagnosis of Pneumocystis jirovecii pneumonia (PJP) and its mixed infection in non-human immunodeficiency virus (HIV) immunosuppressed patients. Methods A total of 198 non-HIV immunosuppressed patients with severe pneumonia were enrolled, including 77 PJP patients and 121 patients infected by other pathogens. BALF-mNGS and traditional detection methods were used. Results The positive detection rate of various pathogens of BALF-mNGS was higher than that of the conventional methods, especially for mixed pathogens. The sensitivity and specificity of BALF-mNGS for the diagnosis of PJP were 97.40% and 85.12%, respectively. Compared with traditional methods, the sensitivity of BALF-mNGS was significantly higher than that of blood fungal G (BG)/lactate dehydrogenase (LDH) and BALF-microscopy (p<0.05), and its specificity was significantly higher than that of BG/LDH (p<0.05). In addition, the average detection time of BALF-mNGS (32.76 ± 10.32 h) was also significantly shorter than conventional methods (p<0.01), especially for mixed infections that were common in non-HIV immunosuppressed patients. In patients only detected as positive by BALF-mNGS, the underlying diseases mainly manifested as hematological malignancies with agranulocytosis and within 8 months after hematopoietic stem cell or solid organ transplantation. Conclusions BALF-mNGS technology is faster, more sensitive, and more comprehensive in detecting P. jirovecii and its mixed infection in immunosuppressed patients.
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Affiliation(s)
- He Sun
- Department of Respiratory and Critical Care Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Feilong Wang
- Department of Respiratory and Critical Care Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Ming Zhang
- Department of Respiratory and Critical Care Medicine, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - Xiaoyong Xu
- Department of Pulmonary and Critical Care Medicine (PCCM), The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Miaomiao Li
- Department of Respiratory and Critical Medicine, The Fourth Affiliated Hospital, School of Medicine, Zhejiang University, Yiwu, China
| | - Wei Gao
- Department of Pulmonary and Critical Care Medicine (PCCM), Shenzhen People’s Hospital, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, China
| | - Xiaodong Wu
- Department of Respiratory and Critical Care Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Huize Han
- Department of Respiratory and Critical Care Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Qin Wang
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Clinical School of Nanjing, Nanjing, China
| | - Gehong Yao
- Department of Respiratory and Critical Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zheng Lou
- Department of Scientific Affairs, Hugobiotech, Beijing, China
| | - Han Xia
- Department of Scientific Affairs, Hugobiotech, Beijing, China
| | - Yi Shi
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Clinical School of Nanjing, Nanjing, China
| | - Qiang Li
- Department of Respiratory and Critical Care Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, China
- *Correspondence: Qiang Li,
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Ma S, Yu Y, Pan A, Gong H, Lou Z, Liu L, Hao L, Meng R, Sui J, Zhang W. The Classification and Surgical Treatments in Adult Hirschsprung’s Disease: A Retrospective Study. Front Med (Lausanne) 2022; 9:870342. [PMID: 35463022 PMCID: PMC9024099 DOI: 10.3389/fmed.2022.870342] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 03/14/2022] [Indexed: 12/25/2022] Open
Abstract
Purpose To explore the treatments and short-term effects of different types of adult Hirschsprung’s disease. Methods 89 patients treated in Shanghai Changhai Hospital were retrospectively analyzed. According to the patient’s medical history, clinical manifestations, auxiliary examination and postoperative pathological results, the patients were divided into adult congenital megacolon, adult idiopathic megacolon, ganglion cell deficiency (types I and II), toxic megacolon and iatrogenic megacolon, The Treatment methods and short-term prognosis of patients in each group were summarized. Results 41 cases of Hirschsprung’s disease in adults and low anterior resection or pull-out low anterior resection was performed, and 35 patients with idiopathic Megacolon were treated with one-stage subtotal colon resection under the condition of adequate preoperative preparation. Some patients admitted for emergency intestinal obstruction received conservative treatment first or underwent elective surgery after colonoscopic decompression was improved; two patients with ganglion cell deficiency subtotal colectomy were performed to remove the dilated proximal bowel segment and the narrow distal bowel segment; three patients with toxic Hirschsprung’s disease underwent colostomy in mild cases, while subtotal colorectal resection was required in severe cases; Iatrogenic megacolon was diagnosed in eight cases and the optimum operation should be selected according to the specific conditions of patients. Conclusion Adult Hirschsprung’s diseases were divided into adult congenital hirschsprung’s disease, idiopathic Hirschsprung’s disease, ganglion cell deficiency, toxic hirschsprung’s disease, and iatrogenic Hirschsprung’s disease. Different types of surgical treatments for Hirschsprung’s disease in adults should be selected according to the specific diagnosis. All patients with adult Hirschsprung’s diseases have good short-term outcomes after surgical treatment.
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Liu X, Zhang Y, Zhang J, Lou Z, Xia H, Lu Z. The Early Diagnosis of Scrub Typhus by Metagenomic Next-Generation Sequencing. Front Public Health 2021; 9:755228. [PMID: 34858931 PMCID: PMC8632043 DOI: 10.3389/fpubh.2021.755228] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 10/06/2021] [Indexed: 11/19/2022] Open
Abstract
Introduction: Scrub typhus is a mite-borne infection widespread in Southeast Asia, with clinical symptoms such as fever, chills, skin rash, eschar at the bite site, and other signs of acute febrile illness. The Rickettsia pathogen (Orientia tsutsugamushi) is always difficult to be diagnosed at an early stage by traditional clinical diagnostic methods, especially for patients without typical eschar. This greatly increases the mortality of patients with scrub typhus. A new approach should be introduced to improve its clinical diagnosis. Methods: During May 2018 to March 2021, 13 samples from 10 patients with suspected scrub typhus were collected. Metagenomic next-generation sequencing (mNGS) and other diagnostic methods (including serology using Weil–Felix reaction and indirect immunofluorescence test (IIFT) for scrub typhus and respiratory tract profile IgM as well as culture for routine bacteria) were used to identify the pathogens in this study. Results: The results of mNGS were all positive, with mapped reads of O. tsutsugamushi ranging from 1 to 460. Eight patients (80%) were diagnosed as scrub typhus. The other two were diagnosed as suspected scrub typhus due to the limited number of reads of the pathogen (one and two, respectively). According to clinical evidences, nine of the 10 patients were finally diagnosed as scrub typhus, except for patient 9 (suspected scrub typhus by mNGS with one specific reads of the pathogen) diagnosed as acute exacerbation of chronic obstructive pulmonary disease. For the five scrub typhus patients without typical eschar, mNGS gave all positive results (4–460 specific reads). For other methods, only Weil–Felix reaction of one patient detected the pathogen. In addition, the respiratory tract profile (IgM) detected various pathogens, but all were confirmed to be false positive. Conclusions: mNGS performed better than conventional clinical methods to early diagnose scrub typhus. This approach can be routinely carried out for early and precise diagnosis in clinical infections, especially for those hard to be identified by traditional diagnostic methods.
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Affiliation(s)
- Xianghong Liu
- Department of Neurology, Ganzhou People's Hospital, Ganzhou, China
| | - Ye Zhang
- Department of Scientific Affairs, Hugobiotech Co., Ltd., Beijing, China
| | - Jun Zhang
- Emergency Department, Ganzhou People's Hospital, Ganzhou, China
| | - Zheng Lou
- Department of Scientific Affairs, Hugobiotech Co., Ltd., Beijing, China
| | - Han Xia
- Department of Scientific Affairs, Hugobiotech Co., Ltd., Beijing, China
| | - Zhijuan Lu
- Department of Neurology, Ganzhou People's Hospital, Ganzhou, China
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Ran W, Ren Z, Wang P, Yan Y, Zhao K, Li L, Li Z, Wang L, Yang J, Wei Z, Lou Z, Shen G. Integrated polarization-sensitive amplification system for digital information transmission. Nat Commun 2021; 12:6476. [PMID: 34753933 PMCID: PMC8578569 DOI: 10.1038/s41467-021-26919-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 10/22/2021] [Indexed: 12/03/2022] Open
Abstract
Polarized light can provide significant information about objects, and can be used as information carrier in communication systems through artificial modulation. However, traditional polarized light detection systems integrate polarizers and various functional circuits in addition to detectors, and are supplemented by complex encoding and decoding algorithms. Although the in-plane anisotropy of low-dimensional materials can be utilized to manufacture polarization-sensitive photodetectors without polarizers, the low anisotropic photocurrent ratio makes it impossible to realize digital output of polarized information. In this study, we propose an integrated polarization-sensitive amplification system by introducing a nanowire polarized photodetector and organic semiconductor transistors, which can boost the polarization sensitivity from 1.24 to 375. Especially, integrated systems are universal in that the systems can increase the anisotropic photocurrent ratio of any low-dimensional material corresponding to the polarized light. Consequently, a simple digital polarized light communication system can be realized based on this integrated system, which achieves certain information disguising and confidentiality effects.
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Affiliation(s)
- Wenhao Ran
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhihui Ren
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Pan Wang
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yongxu Yan
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Kai Zhao
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Linlin Li
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhexin Li
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lili Wang
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Juehan Yang
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhongming Wei
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China.
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Zheng Lou
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China.
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Guozhen Shen
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China.
- Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.
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Niu H, Zhang H, Yue W, Gao S, Kan H, Zhang C, Zhang C, Pang J, Lou Z, Wang L, Li Y, Liu H, Shen G. Micro-Nano Processing of Active Layers in Flexible Tactile Sensors via Template Methods: A Review. Small 2021; 17:e2100804. [PMID: 34240560 DOI: 10.1002/smll.202100804] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [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: 02/07/2021] [Revised: 03/05/2021] [Indexed: 06/13/2023]
Abstract
Template methods are regarded as an important method for micro-nano processing in the active layer of flexible tactile sensors. These template methods use physical/chemical processes to introduce micro-nano structures on the active layer, which improves many properties including sensitivity, response/recovery time, and detection limit. However, since the processing process and applicable conditions of the template method have not yet formed a perfect system, the development and commercialization of flexible tactile sensors based on the template method are still at a relatively slow stage. Despite the above obstacles, advances in microelectronics, materials science, nanoscience, and other disciplines have laid the foundation for various template methods, enabling the continuous development of flexible tactile sensors. Therefore, a comprehensive and systematic review of flexible tactile sensors based on the template method is needed to further promote progress in this field. Here, the unique advantages and shortcomings of various template methods are summarized in detail and discuss the research progress and challenges in this field. It is believed that this review will have a significant impact on many fields of flexible electronics, which is beneficial to promote the cross-integration of multiple fields and accelerate the development of flexible electronic devices.
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Affiliation(s)
- Hongsen Niu
- School of Information Science and Engineering, Shandong Provincial Key Laboratory of Network Based Intelligent Computing, University of Jinan, Jinan, 250022, China
| | - Huiyun Zhang
- School of Information Science and Engineering, Shandong Provincial Key Laboratory of Network Based Intelligent Computing, University of Jinan, Jinan, 250022, China
| | - Wenjing Yue
- School of Information Science and Engineering, Shandong Provincial Key Laboratory of Network Based Intelligent Computing, University of Jinan, Jinan, 250022, China
| | - Song Gao
- School of Information Science and Engineering, Shandong Provincial Key Laboratory of Network Based Intelligent Computing, University of Jinan, Jinan, 250022, China
| | - Hao Kan
- School of Information Science and Engineering, Shandong Provincial Key Laboratory of Network Based Intelligent Computing, University of Jinan, Jinan, 250022, China
| | - Chunwei Zhang
- School of Information Science and Engineering, Shandong Provincial Key Laboratory of Network Based Intelligent Computing, University of Jinan, Jinan, 250022, China
| | - Congcong Zhang
- Institute for Advanced Interdisciplinary Research, University of Jinan, Jinan, 250022, China
| | - Jinbo Pang
- Institute for Advanced Interdisciplinary Research, University of Jinan, Jinan, 250022, China
| | - Zheng Lou
- State Key Laboratory for Superlattices and Microstructures Institute of Semiconductors, Chinese Academy of Sciences and Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100083, China
| | - Lili Wang
- State Key Laboratory for Superlattices and Microstructures Institute of Semiconductors, Chinese Academy of Sciences and Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100083, China
| | - Yang Li
- School of Information Science and Engineering, Shandong Provincial Key Laboratory of Network Based Intelligent Computing, University of Jinan, Jinan, 250022, China
- State Key Laboratory for Superlattices and Microstructures Institute of Semiconductors, Chinese Academy of Sciences and Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100083, China
| | - Hong Liu
- Institute for Advanced Interdisciplinary Research, University of Jinan, Jinan, 250022, China
| | - Guozhen Shen
- State Key Laboratory for Superlattices and Microstructures Institute of Semiconductors, Chinese Academy of Sciences and Center of Materials Science and Optoelectronic Engineering, University of Chinese Academy of Sciences, Beijing, 100083, China
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Lou Z, Shen G, Ding L. Permeable liquid-metal conductor for stretchable electronics. Sci Bull (Beijing) 2021; 66:1819-1821. [PMID: 36654389 DOI: 10.1016/j.scib.2021.06.003] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Zheng Lou
- Institute of Semiconductors (Chinese Academy of Sciences), and Center of Materials Science and Optoelectronic Engineering (University of Chinese Academy of Sciences), Beijing 100083, China
| | - Guozhen Shen
- Institute of Semiconductors (Chinese Academy of Sciences), and Center of Materials Science and Optoelectronic Engineering (University of Chinese Academy of Sciences), Beijing 100083, China.
| | - Liming Ding
- Center for Excellence in Nanoscience (Chinese Academy of Sciences), Key Laboratory of Nanosystem and Hierarchical Fabrication (Chinese Academy of Sciences), National Center for Nanoscience and Technology, Beijing 100190, China.
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