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Xu X, Kwiatek J, Siddall J, Genofre E, Stirnadel-Farrant H, Katial R. CHARACTERIZATION OF PATIENTS WITH EOSINOPHILIC ESOPHAGITIS MANAGED BY GASTROENTEROLOGISTS AND ALLERGISTS: REAL-WORLD CLINICAL PRACTICE EVIDENCE. Ann Allergy Asthma Immunol 2022. [DOI: 10.1016/j.anai.2022.08.980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Xu X, Kwiatek J, Siddall J, Genofre E, Stirnadel-Farrant H, Katial R. PATIENT-REPORTED SYMPTOMS OF EOSINOPHILIC ESOPHAGITIS IN THE UNITED STATES: EVIDENCE FROM REAL-WORLD CLINICAL PRACTICE. Ann Allergy Asthma Immunol 2022. [DOI: 10.1016/j.anai.2022.08.726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Xu X, Zhang YC, Wang ZM, Zhang Z, Yu HW, Chang D. [Recent progress of aptasensors for tumor exosome-associated protein detection]. ZHONGHUA YU FANG YI XUE ZA ZHI [CHINESE JOURNAL OF PREVENTIVE MEDICINE] 2022; 56:1505-1513. [PMID: 36274622 DOI: 10.3760/cma.j.cn112150-20211118-01064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Exosomes are phospholipid bilayer membrane-enclosed vesicles released from cells with diameters of 30-150 nm, exosomes can directly reflect the physiological and functional state of secretory cells, participate in material transport and information communication between cells, which are of great significance as biomarkers for early tumor diagnosis and treatment evaluation. There are many detection methods for exosomes, among which aptasensor technology with the properties of low price and easy operation, fast response, high sensitivity, remarkable specificity helps tumor patients to find, diagnose and treat early, improve the survival rate, and provide important basis for the evaluation of the prognosis. There are seven types of common aptasensors: fluorescent, electrochemical, colorimetric, luminescence, lateral flow strips, surface-enhanced Raman scattering and surface plasmon resonance sensors. Different aptasensors have different characteristics, this article focuses on the research progress of several common aptasensor for tumor exosomes detection.
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Maamari S, Xu X, Zeisberg E. Demethylation and reactivation of the fibrosis-suppressor gene Rasal1 is initiated by R-loop formation which facilitates recruitment of TET3 and GADD45g. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Silencing of fibrosis suppressor genes through DNA methylation has been shown to contribute to fibrosis progression in the heart and in other organs. Growth Arrest and DNA Damage 45-(GADD45) and Ten-Eleven-Translocation (TET) proteins are involved in active DNA demethylation, but how they are recruited to the promoter of fibrosis suppressor genes has not yet been understood.
Purpose
To identify the mechanisms involved in site-specific demethylation of the promoter region of the cardiac fibrosis suppressor gene Rasal1.
Methods
We previously identified lncRNA Gm15749 located within the Rasal1 promoter region. Using DRIP qRT-PCR, we demonstrated an enrichment of R-loops at the Rasal1 promoter in non-fibrotic mouse cardiac fibroblasts. Such enrichment of R-loops was lost upon TGF-beta-treatment in activated “fibrotic” fibroblasts, and also upon Gm15749 knockdown in untreated non-fibrotic fibroblasts. ChIP qRT-PCR further revealed binding of GADD45g to the Rasal1 promoter and Co-IP experiments confirmed a physical interaction of TET3 and GADD45g.
Results
Studying the RAS Protein Activator Like 1 (Rasal1), which has been shown to be silenced in fibrosis of the heart due to promoter hypermethylation, we find that the lncRNA Gm15749 within the promoter region of Rasal1 is protective by forming an R-loop at the Rasal1 promoter. Gm15749 mediates the recruitment and binding of GADD45g, which then triggers the demethylation process by recruiting TET3 specifically to the Rasal1 promoter region. During cardiac fibrosis, all three factors; Gm15749, TET3, and GADD45g are significantly downregulated and the protection of Rasal1 is lost due to the failure of the formation of the demethylation complex.
Conclusions
Our results suggest a complex involving an R-loop forming lncRNA termed Gm15749, which interacts with the demethylation complex consisting of GADD45g and TET3 to perform site-specific demethylation at the Rasal1 promoter. Such R-loop formation may counteract fibrogenesis through reactivation of fibrosis-suppressor genes silenced by hypermethylation.
Funding Acknowledgement
Type of funding sources: None.
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Sun Y, Ji Y, Wu K, Wang H, Guo Y, Xu X, Shang X, Yang Q, Huang X, Zhou Z. [Association of nutritional status with clinical outcomes of stroke patients with acute anterior circulation large vessel occlusion after emergency endovascular treatment]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2022; 42:1397-1402. [PMID: 36210714 DOI: 10.12122/j.issn.1673-4254.2022.09.17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To explore the influence of nutritional status on 90-day functional outcomes of stroke patients with acute large vessel occlusion in the anterior circulation after endovascular treatment (EVT). METHODS We retrospectively analyzed the baseline, laboratory, surgical and 90-day follow-up data of patients with stroke resulting from acute large vessel occlusion in the anterior circulation, who underwent emergency endovascular treatment in our hospital from July, 2015 to December, 2020. A favorable outcome was defined as a modified Rankin scale score ≤2 at 90 days. Univariate and multivariate regression analyses were performed to explore the relationship between nutritional status and 90-day functional outcomes of the patients. RESULTS A total of 459 patients (mean age of 68.29±11.21 years, including 260 males) were enrolled in this study. According to their prognostic nutritional index (PNI), the patients were divided into normal nutrition group (392 cases, 85.4%), moderate malnutrition group (44 cases, 9.6%), and severe malnutrition group (23 cases, 5.0%). Univariate analysis showed that the patients with good clinical outcomes had a lower proportion of malnutrition with a younger age, a lower rate of diabetes, lower baseline blood pressure, lower baseline NIHSS score, higher baseline ASPECT score, and higher rates of good collateral circulation and complete vascular recanalization. Multivariate analysis showed that in addition to age, diabetes, baseline systolic blood pressure, successful recanalization, baseline ASPECT score, baseline NIHSS score and collateral circulation, a greater PNI was a protective factor for a good 90-day outcome of patients after EVT (moderate vs severe: OR=0.245, 95% CI: 0.066-0.908, P=0.035; normal vs severe: OR=0.185, 95% CI: 0.059-0.581, P=0.004). CONCLUSION Nutritional status an important factor affecting the 90-day outcomes after EVT of stroke patients with acute large vessel occlusion in the anterior circulation.
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Xu X, Bu B, Tian H, Wu R, Yang J. MicroRNAs combined with the TLR4/TDAG8 mRNAs and proinflammatory cytokines are biomarkers for the rapid diagnosis of sepsis. Mol Med Rep 2022; 26:334. [PMID: 36102304 PMCID: PMC9494599 DOI: 10.3892/mmr.2022.12850] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 09/29/2021] [Indexed: 11/06/2022] Open
Abstract
The early diagnosis and treatment of sepsis are of particular importance to patient survival. To obtain novel biomarkers that serve as prompt indicators of sepsis, the current study screened the differentially expressed microRNAs (DEMs) that were associated with sepsis susceptibility. The correlation between the elucidated DEMs and the inflammatory response was also examined. The present study included 40 patients with sepsis and 40 healthy controls. RNA-sequencing technology and bioinformatics analysis were applied to screen the DEMs between the two cohorts. The expression of these DEMs was subsequently verified by performing reverse transcription-quantitative PCR (RT-qPCR). In addition, IL-6, IL-21, C-X-C motif chemokine ligand-8 (CXCL8) and monocyte chemoattractant protein-1 (MCP-1) levels, along with T-cell death-associated gene 8 (TDAG8) and toll-like receptor 4 (TLR4) mRNA expression levels were assessed. The association between microRNA (miRNA/miR)-3663-3p and the secretion of various proinflammatory cytokines or TDAG8 and TLR4 mRNA expressions were subsequently evaluated by linear correlation analysis. The results revealed 305 DEMs (P<0.05; fold change >2) between patients with sepsis and healthy controls. Among these, the top 18 up- and downregulated miRNAs were selected for RT-qPCR verification. In addition, the serum content of IL-6, IL-21, CXCL8 and MCP-1, and the expression of TDAG8 and TLR4 mRNAs were significantly increased in patients with sepsis compared with healthy controls. Moreover, in patients with sepsis, a positive correlation was identified between miR-3663-3p and the secretion of inflammatory cytokines or TDAG8 and TLR4 mRNA expression. A positive correlation was also elucidated between TDAG8 and TLR4 mRNA expression and proinflammatory cytokine/chemokine secretion. Receiver operating characteristic curve analysis of miR-3663-3p expression, IL-6, IL-21, CXCL8 and MCP-1 secretion and TDAG8 and TLR4 mRNA expression demonstrated that miRNA analysis may be invaluable for the diagnosis of sepsis. Collectively, the results determined that miR-3663-3p may be a potentially powerful diagnostic and predictive biomarker of sepsis and that the combined and simultaneous detection of several biomarkers, including proteins, miRNAs and mRNA may be a reliable approach for the fast diagnosis and early identification of sepsis.
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Gao BB, Zheng Q, Yu L, Luo DJ, Nie X, Xu X. [Clinicopathological features and HER2 expression of metaplastic squamous cell carcinoma of the breast]. ZHONGHUA BING LI XUE ZA ZHI = CHINESE JOURNAL OF PATHOLOGY 2022; 51:843-849. [PMID: 36097900 DOI: 10.3760/cma.j.cn112151-20220430-00356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the clinicopathological features and HER2 expression of metaplastic squamous cell carcinoma (MSCC) of the breast. Methods: A total of 47 MSCC cases diagnosed in the Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China from January 2010 to December 2021 were reviewed. The clinical information (including the follow-up data of HER2 positive patients) and pathological features were collected and analyzed. Results: All of the patients were female. Among the 47 cases, 25 were pure squamous cell carcinoma (PSCC) and 22 were mixed metaplastic carcinoma with squamous cell component (MMSC). The median age of the patients was 54 years (range, 29-84 years). The maximum diameter of the mass ranged from 0.8 to 10.0 cm, with a mean value of 3.3 cm, 85.7% (24/28) of the cases were smaller than 5 cm, and only 4 cases were larger than or equal to 5 cm. 89.5% of the MMSC presented with a solid mass. Cystic changes were more commonly found in the PSCC group (50%, P<0.05) than the MMSC group. 36.7% (11/30) of the patients had lymph node metastasis at the time of diagnosis. The squamous cell carcinoma component in all cases showed diffuse or patchy expression of p63, p40 and CK5/6. 55.3% (26/47) of the cases showed triple-negative phenotype. Among the 7 HER2-positive patients, 6 were MMSC group, which had a significantly higher rate of HER2-positivity than that in the PSCC group (1 case). In 1 MMSC case, immunohistochemistry showed HER2 2+in the invasive ductal carcinoma component and HER2 negativity (0) in the squamous cell carcinoma component, but HER2 FISH was negative in invasive ductal carcinoma and positive in squamous cell carcinoma component. Six HER2-positive MSCC patients received anti-HER2-targeted therapy, including two patients who received neoadjuvant chemotherapy combined with anti-HER2-targeted therapy before surgery. One patient achieved pathological complete remission, while the other achieved partial remission (the residual tumors were squamous cell carcinoma components). After 9-26 months of follow-up, four patients had no disease progression, two patients developed pulmonary metastases, and one patient showed local recurrence. Conclusions: MSCC is a group of heterogeneous diseases. PSCC and MMSC may be two different entities. Most of the MSCC are triple-negative and HER2 positivity is more commonly seen in MMSC with invasive ductal carcinoma component. Some HER2-positive MSCC patients can achieve complete remission or long-term progression-free survival after receiving anti-HER2 targeted therapy, but the squamous cell carcinoma component may be less sensitive to targeted therapy than the invasive ductal carcinoma component.
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Hu J, Ding N, Chen Y, Liu J, Zhou J, Xu X, Bao H, Song Y, Zhang D, Shao Y, Zhang Y. 1011P MET and NF2 alterations confer early resistance to first-line alectinib treatment in ALK-rearranged non-small cell lung cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Xu X, Li N, Fan Y. EP08.02-092 Coexistence of a Novel NBAS-ALK, EML4-ALK Double-Fusion in a Lung Adenocarcinoma Patient With LM and Response to Ensartinib. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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85
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Xu X, Mao W. EP07.02-005 Multicenter Clinical Analysis, Gene Expression Profiling and Correlation Analysis of Immune Cell Infiltration in Pleural Mesothelioma. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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86
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Pan K, Zhu L, Wang B, Xu X, Ma S, Xia B. EP10.01-001 Hypofractionated Stereotactic Radiotherapy for Brain Metastases in Lung Cancer: Dose-Response Effect and Toxicity. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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87
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Xu X, Sheng J, Zhou Z, Huang Z, Wang D, Li N, Fan Y. EP07.02-006 Tumor Immune Microenvironment Related Makers are Overexpressed and Served as Favourable Prognostic Factors in Resectable ESCC. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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88
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Wu YL, Zhou Q, Chen M, Pan Y, Jian O, Hu D, Lin Q, Wu G, Cui J, Chang J, Cheng Y, Huang C, Liu A, Yang N, Gong Y, Zhu C, Ma Z, Fang J, Chen G, Zhao J, Shi A, Lin Y, Li G, Liu Y, Wang D, Wu R, Xu X, Shi J, Liu Z, Wang J, Yang J. OA02.05 Sugemalimab vs Placebo after cCRT or sCRT in pts with Unresectable Stage III NSCLC: Final PFS Analysis of a Phase 3 Study. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Gebauer U, Beleño C, Frey A, Adachi I, Adamczyk K, Aihara H, Al Said S, Asner D, Atmacan H, Aushev T, Ayad R, Babu V, Bahinipati S, Behera P, Belous K, Bennett J, Bessner M, Bhardwaj V, Bhuyan B, Bilka T, Biswal J, Bobrov A, Bonvicini G, Bozek A, Bračko M, Browder T, Campajola M, Cao L, Červenkov D, Chang MC, Chekelian V, Chen A, Cheon B, Chilikin K, Cho H, Cho K, Cho SJ, Choi SK, Choi Y, Choudhury S, Cinabro D, Cunliffe S, Das S, Dash N, De Nardo G, Di Capua F, Dingfelder J, Doležal Z, Dong T, Eidelman S, Epifanov D, Ferber T, Ferlewicz D, Fulsom B, Garg R, Gaur V, Gabyshev N, Garmash A, Giri A, Goldenzweig P, Golob B, Gudkova K, Hadjivasiliou C, Halder S, Hara T, Hartbrich O, Hayasaka K, Hayashii H, Hedges M, Hou WS, Hsu CL, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs W, Jia S, Jin Y, Joo C, Joo K, Kahn J, Kaliyar A, Kang K, Karyan G, Kawasaki T, Kichimi H, Kiesling C, Kim C, Kim D, Kim S, Kim YK, Kinoshita K, Kodyš P, Konno T, Korobov A, Korpar S, Kovalenko E, Križan P, Kroeger R, Krokovny P, Kuhr T, Kumar M, Kumar R, Kumara K, Kuzmin A, Kwon YJ, Lalwani K, Lange J, Lee I, Lee S, Lewis P, Li Y, Li Gioi L, Libby J, Lieret K, Liventsev D, MacQueen C, Masuda M, Matsuda T, Matvienko D, Merola M, Metzner F, Miyabayashi K, Mizuk R, Mohanty G, Mrvar M, Mussa R, Nakao M, Natkaniec Z, Natochii A, Nayak L, Nayak M, Nisar N, Nishida S, Nishimura K, Ogawa S, Ono H, Onuki Y, Oskin P, Pakhlov P, Pakhlova G, Pardi S, Park H, Park SH, Patra S, Paul S, Pedlar T, Pestotnik R, Piilonen L, Podobnik T, Prencipe E, Prim M, Purohit M, Röhrken M, Rostomyan A, Rout N, Russo G, Sahoo D, Sandilya S, Sangal A, Santelj L, Sanuki T, Savinov V, Schnell G, Schueler J, Schwanda C, Seino Y, Senyo K, Sevior M, Shapkin M, Sharma C, Shiu JG, Shwartz B, Simon F, Solovieva E, Stanič S, Starič M, Stottler Z, Sumiyoshi T, Takizawa M, Tamponi U, Tenchini F, Trabelsi K, Uchida M, Uglov T, Unno Y, Uno S, Urquijo P, Van Tonder R, Varner G, Varvell K, Vossen A, Waheed E, Wang C, Wang MZ, Wang P, Wang X, Watanuki S, Wiechczynski J, Won E, Xu X, Yabsley B, Yan W, Yang S, Ye H, Yin J, Yuan C, Zhang Z, Zhilich V, Zhukova V. Measurement of the branching fractions of the
B+→ηℓ+νℓ
and
B+→η′ℓ+νℓ
decays with signal-side only reconstruction in the full
q2
range. Int J Clin Exp Med 2022. [DOI: 10.1103/physrevd.106.032013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Xu JF, Jiang J, Yang L, Qian J, Wang H, Chen HM, Liu HJ, Song C, Xu X, Zhu FC, Zhu LG, Zhai XJ. [Association between metabolic risk factors and the hepatitis B reactivation of inactive HBsAg carriers in Jiangsu province: a cohort study]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2022; 43:1301-1308. [PMID: 35981994 DOI: 10.3760/cma.j.cn112338-20211203-00944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To analyze the impact of metabolic risk factors on the epidemiological characteristics of the reactivation of inactive HBsAg carriers (IHC) and provide effective intervention measures to standardize the management of chronic hepatitis B infections. Methods: Based on the chronic hepatitis B infection cohort established in 2010 in Jiangsu province, six follow-up visits from 2012 to 2020 were conducted to analyze the characteristics and influencing factors of the hepatitis B reactivation of IHC and the impact of metabolic risk factors, including obesity, high blood pressure, diabetes and hyperglycemia. Results: From 2012 to 2020, 2 527 IHC and 17 730 person-years were observed during a median follow-up period of 7.0 person-years. Ninety-eight cases of hepatitis B reactivation, with a cumulative reaction rate, was 3.9%, and the incidence density was 5.53/1 000 person-years. Multivariate Cox proportional risk regression analysis showed that age and baseline HBV DNA were independent risk factors of HBV reactivation. Compared with the patients ≥60 years, 40-49 age group (aHR=2.16, 95%CI:1.20-3.90) and 20-29 age group (aHR=5.48, 95%CI:2.07-14.48) were significantly associated with hepatitis B reactivation. Compared with the HBV DNA negative patients at baseline, the risk of hepatitis B reactivation was higher in the group with low HBV DNA level 100-1 999 IU/ml (aHR=1.67, 95%CI:1.11-2.52). Stratification analysis results showed that compared with those without metabolic risk factors, in the ≥50 age group, patients with ≥2 metabolic risk factors showed adjusted HR of 2.73 (95%CI:1.08-6.96). Conclusions: The risk of hepatitis B being reactive is the persistent existence of IHC in communities in Jiangsu province, especially young adults, low-level HBV DNA carriers, and IHC with ≥2 metabolic risk factors. Follow-up for these IHC should be strengthened to reduce the risk of disease progression by antiviral treatment at the right time.
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Zhang QJ, Chen SW, Xu X, Zhang HL, Yan JY. Effect of induction of labor on maternal and perinatal outcomes in low-risk singleton pregnancies: a retrospective case-control study. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2022; 26:5918-5925. [PMID: 36066167 DOI: 10.26355/eurrev_202208_29531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE The aim of the study was to investigate the effect of induction of labor on maternal and fetal outcomes. PATIENTS AND METHODS This retrospective case-control study included 4386 pregnant women with low-risk singleton pregnancies who underwent regular prenatal examination and successful vaginal delivery at ≥41 weeks and 0 days of gestation in Fujian Maternal and Child Health Hospital between January 2014 and December 2018. Clinical data of women were retrospectively divided into the induction of labor group (2007 cases) and spontaneous onset of labor group (2361 cases) based on the mode of labor initiation. Two-sample independent t-test and χ2 tests were used to analyze the differences in clinical characteristics, such as maternal age and parity between the two groups. RESULTS The induction of the labor group had a significantly longer total duration of labor (9.37±5.37 vs. 8.82±5.13 h; p<0.001), more postpartum blood loss (219.18±188.32 vs. 199.95±124.69 mL; p=0.01) and a significantly higher incidence of severe postpartum hemorrhage (PPH) comparing to the spontaneous onset of labor group [0.8% (16/2007) vs. 0.33% (8/2361); p=0.041]. However, no significant difference was found in the neonatal outcomes. After adjusting for age, induction of labor in nulliparous women was more likely to lead to PPH than the spontaneous onset of labor [2.74% (55/2007) vs. 1.65% (39/2361); odds ratio=1.557; 95% confidence interval: 1.039-2.332; p<0.05]. CONCLUSIONS Induction of labor increases the duration of labor and postpartum blood loss, especially in primary parturient, leading to an increased risk of PPH. This increase may be related to the overall higher duration of labor, associated with IOL. Therefore, low-risk nulliparous women should try to avoid induction of labor without medical indications.
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He C, Zheng L, Gao W, Ding J, Li C, Xu X, Han B, Li Q, Wang S. Diversity and functions of quorum sensing bacteria in the root environment of the Suaeda glauca and Phragmites australis coastal wetlands. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:54619-54631. [PMID: 35305219 DOI: 10.1007/s11356-022-19564-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 03/01/2022] [Indexed: 06/14/2023]
Abstract
The quorum sensing (QS) system plays a significant role in the bacteria-bacteria or plant-bacteria relationships through signal molecules. However, little is known about the distribution and functional diversity of QS bacteria in the root environment of Suaeda glauca and Phragmites australis in coastal wetlands. We explored the bacterial community by amplicon sequencing and isolated 1050 strains from the rhizosphere soil and root tissues of S. glauca and P. australis in northern China to investigate the bacterial community and AHL producers. AHL activity was found in 76 isolates, and 22 distinct strains were confirmed by 16S rRNA gene sequencing. A substantial number of AHL producers clustered in rhizobiales and sphingomonadale, which derived from the root tissues. AHL producers in the rhizosphere soil mostly belonged to rhodobacterales. The different taxa of AHL producers in the rhizosphere soil and root tissues resulted in a variation of AHL profiles that C6-HSL dominated the AHL profiles in root bacteria compared to the C8-HSL in rhizobacteria, implying different ecological roles for AHL producers in the rhizosphere soil and root tissues. Many AHL producers may form biofilms, and some can degrade DMSP and oil, demonstrating that QS bacteria in the root environment have a wide ecological roles. In our study, for one of the first times here, we explore the distribution and functional variety of AHL producers in the root environment of S. glauca-P. australis. This study expands current knowledge of the relationship between QS bacteria and coastal plants (S. glauca and P. australis), and vital roles of QS bacterial in maintaining the health of coastal wetlands.
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Luo Y, Rao Y, Gu X, Chai P, Yang Y, Lin J, Xu X, Jia R, Xu S. Novel MSH6 mutation predicted metastasis in eyelid and periocular squamous cell carcinoma. J Eur Acad Dermatol Venereol 2022; 36:2331-2342. [PMID: 35855666 DOI: 10.1111/jdv.18454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 06/03/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Our previous research revealed the relative local aggressiveness of eyelid and periocular squamous cell carcinoma (EPSCC), but its distinct genetic characteristics involved remain unknown. OBJECTIVES We conducted this study based on next-generation sequencing to identify the genetic distinctiveness of EPSCC and damaging mutations for possible etiology and poor prognosis. METHODS We performed sequencing using a 556-gene panel (smartonco) in 48 EPSCCs. Cox hazards model was applied to explore mutated genes that increase risk of metastasis and death. Pathogenesis of the mutations was predicted by sequence alignment algorithms. RESULTS The most commonly mutated genes were KMT2C (N=17, 35%), LRP1B (N=14, 29%), KMT2D (N=12, 25%), PTCH1(N=10, 21%) and TP53(N=10, 21%). DNA mismatch repair (MMR) genes (42%) like MSH6(19%) and MLH3(12%) were among the most frequently mutated genes. Cell cycle regulators including TP53(21%) and CDKN2A (10%) were less frequently mutated than in other squamous cell carcinomas (SCCs). Ultra violet exposure, MMR deficiency and aging were the main etiology. Of note, KMT2C has a deleterious mutation hotspot. Patients burdened with MSH6 mutation has a higher risk of overall metastasis (P=0.045, HR=5.165) and nodal metastasis (P=0.022, HR=14.038). Moreover, a hotspot mutation MSH6E52A brought an even higher risk of nodal metastasis (P=0.011, HR=18.745). CONCLUSIONS EPSCCs displayed a unique mutation profile from cutaneous SCCs and mucosal SCCs. We have identified novel damaging mutations in epigenetic regulators like KMT2C boosted early onset of EPSCCs in addition to UVR, aging or MMR deficiency. And malfunction of MMR genes worsened prognosis.
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Xu X, Huang X, Sun J, Chen J, Wu G, Yao Y, Zhou N, Wang S, Sun L. 3D-Stacked Multistage Inertial Microfluidic Chip for High-Throughput Enrichment of Circulating Tumor Cells. CYBORG AND BIONIC SYSTEMS 2022; 2022:9829287. [PMID: 38645277 PMCID: PMC11030111 DOI: 10.34133/2022/9829287] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 06/26/2022] [Indexed: 02/05/2023] Open
Abstract
Whether for cancer diagnosis or single-cell analysis, it remains a major challenge to isolate the target sample cells from a large background cell for high-efficiency downstream detection and analysis in an integrated chip. Therefore, in this paper, we propose a 3D-stacked multistage inertial microfluidic sorting chip for high-throughput enrichment of circulating tumor cells (CTCs) and convenient downstream analysis. In this chip, the first stage is a spiral channel with a trapezoidal cross-section, which has better separation performance than a spiral channel with a rectangular cross-section. The second and third stages adopt symmetrical square serpentine channels with different rectangular cross-section widths for further separation and enrichment of sample cells reducing the outlet flow rate for easier downstream detection and analysis. The multistage channel can separate 5 μm and 15 μm particles with a separation efficiency of 92.37% and purity of 98.10% at a high inlet flow rate of 1.3 mL/min. Meanwhile, it can separate tumor cells (SW480, A549, and Caki-1) from massive red blood cells (RBCs) with a separation efficiency of >80%, separation purity of >90%, and a concentration fold of ~20. The proposed work is aimed at providing a high-throughput sample processing system that can be easily integrated with flowing sample detection methods for rapid CTC analysis.
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Wang H, Xuan P, Tian H, Hao X, Yang J, Xu X, Qiao L. Adipose‑derived mesenchymal stem cell‑derived HCAR1 regulates immune response in the attenuation of sepsis. Mol Med Rep 2022; 26:279. [PMID: 35856408 PMCID: PMC9364135 DOI: 10.3892/mmr.2022.12795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 06/15/2022] [Indexed: 01/09/2023] Open
Abstract
Sepsis serves as a leading cause of admission to and death of patients in the intensive care unit (ICU) and is described as a systemic inflammatory response syndrome caused by abnormal host response to infection. Adipose‑derived mesenchymal stem cells (ADSCs) have exhibited reliable and promising clinical application potential in multiple disorders. However, the function and the mechanism of ADSCs in sepsis remain elusive. In the present study, the crucial inhibitory effect of ADSC‑derived hydroxy‑carboxylic acid receptor 1 (HCAR1) on sepsis was identified. Reverse transcription quantitative‑PCR determined that the mRNA expression of HCAR1 was reduced while the mRNA expression of Toll‑like receptor 4 (TLR4), major histocompatibility complex class II (MHC II), NOD‑like receptor family pyrin domain containing 3 (NLRP3), and the levels of interleukin‑1β (IL‑1β), tumor necrosis factor‑α (TNF‑α), interleukin‑10 (IL‑10), and interleukin‑18 (IL‑18) were enhanced in the peripheral blood of patients with sepsis. The expression of HCAR1 was negatively correlated with TLR4 (r=‑0.666), MHC II (r=‑0.587), and NLRP3 (r=‑0.621) expression and the expression of TLR4 was positively correlated with NLRP3 (r=0.641), IL‑1β (r=0.666), TNF‑α (r=0.606), and IL‑18 (r=0.624) levels in the samples. Receiver operating characteristic (ROC) curve analysis revealed that the area under the ROC curve (AUC) of HCAR1, TLR4, MHC II and NLRP3 mRNA expression was 0.830, 0.853, 0.735 and 0.945, respectively, in which NLRP3 exhibited the highest diagnostic value, and the AUC values of IL‑1β, IL‑18, TNF‑α, and IL‑10 were 0.751, 0.841, 0.924 and 0.729, respectively, in which TNF‑α exhibited the highest diagnostic value. A sepsis rat model was established by injecting lipopolysaccharide (LPS) and the rats were randomly divided into 5 groups, including a normal control group (NC group; n=6), a sepsis model group (LPS group; n=6), an ADSC transplantation group (L + M group; n=6), a combined HCAR1 receptor agonist group [L + HCAR1 inducer (Gi) + M group; n=6], and a combined HCAR1 receptor inhibitor group [L + HCAR1 blocker (Gk) + M group; n=6]. Hematoxylin and eosin staining determined that ADSCs attenuated the lung injury of septic rats and ADSC‑derived HCAR1 enhanced the effect of ADSCs. The expression of HCAR1, TLR4, MHC II, NLRP3, IL‑1β, IL‑18 and TNF‑α levels were suppressed by ADSCs and the effect was further induced by ADSC‑derived HCAR1. However, ADSC‑derived HCAR1 induced the levels of anti‑inflammatory factor IL‑10. The negative correlation of HCAR1 expression with TLR4, MHC II, and NLRP3 expression in the peripheral blood and lung tissues of the rats was then identified. It is thus concluded that ADSC‑derived HCAR1 regulates immune response in the attenuation of sepsis. ADSC‑derived HCAR1 may be a promising therapeutic strategy for sepsis.
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Kinoshita Y, Miyakawa T, Xu X, Tokunaga M. Long-distance polarizing microscope system combined with solenoid-type magnet for microscopy and simultaneous measurement of physical parameters. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2022; 93:073702. [PMID: 35922319 DOI: 10.1063/5.0094747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 06/17/2022] [Indexed: 06/15/2023]
Abstract
We have developed a long-distance polarizing microscope system combined with a solenoid-type superconducting magnet. By inserting an infinity-corrected objective lens into the magnet, direct or polarizing microscope images are observed in magnetic fields of up to 12 T at various temperatures down to 2 K. Through magneto-optical measurements in the transmission geometry, the local magnetization process of a transparent magnet is evaluated in areas of 10 × 10 µm2. This system enables simultaneous measurements of other physical properties over a wide range of temperatures and magnetic fields. The basic principle of the proposed long-distance microscopy can be applied to imaging experiments in various research fields, particularly biology and chemistry.
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97
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Zhou SY, Jiang XL, Ju S, Li XY, Chen B, Jiang JH, Guo DQ, Xu X, Dong ZH, Fu W. [Early outcomes of excimer laser atherectomy for below-the-knee lesions in patients with diabetic foot]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 2022; 60:599-605. [PMID: 35658349 DOI: 10.3760/cma.j.cn112139-20211116-00534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To evaluate the clinical outcomes of excimer laser atherectomy (ELA) in the treatment of diabetic foot with below-the-knee(BTK) lesions. Methods: The clinical data of 11 patients with diabetic foot with BTK lesions who underwent ELA at Department of Vascular Surgery,Zhongshan Hospital of Fudan University and Department of Vascular and Wound Treatment Center,Jinshan Hospital of Fudan University from September 2019 to May 2021 were retrospectively analyzed.There were 10 males and 1 female,aged 70.5 years(range:41 to 83 years).There were 20 lesions in 12 limbs,including 19 chronic total occlusion.All of the limbs were classified as Rutherford class 5 and suffered ulceration.The surgical efficacy,complications and ankle brachial index(ABI) after operation were record. Results: All patients underwent the operation successfully,the technical success rate was 12/12.No distal embolization,flow-limiting dissection,perforation or bailout stenting was occurred.The follow-up period was 8.2 months(range:3 to 13 months).The ABI increased from 0.58(range:0.24 to 1.57) before operation to 0.88(range:0.68 to 1.05) after operation.At 3 months after the operation,1 limb (1/12) underwent endovascular operation again due to restenosis,ulcers were healed in 5 limbs(5/12),and no amputation (limb/toe),death or loss of follow-up patients.Six months after the operation,2 patients were lost to follow-up and 2 died,ulcers were healed in 6 limbs(6/8),1 limb (1/8) underwent toe amputation due to prolonged healing of ulcers of toe. Conclusion: ELA is feasible and effective in the treatment of DF with BTK lesions,providing a new option of debulking atherectomy in such a group of patients.
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Yang Z, Xu C, Wang W, Xu X, Yang HM, Wang ZY, Rose P, Pirgozliev V. Dietary amylose and amylopectin ratio changes starch digestion and intestinal microbiota diversity in goslings. Br Poult Sci 2022; 63:691-700. [PMID: 35583929 DOI: 10.1080/00071668.2022.2079398] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
1. Research has confirmed that amylopectin (AP) is more easily digested than amylose (AM) because AP polymers have more intramolecular hydrogen bonds and less surface area. Studying the relationship between the amylose:amylopectin (AM:AP) ratio and intestine digestion in goslings can provide useful information for effective utilisation of starch.2. A total of 288 healthy male Jiangnan White Goslings, aged three days old, were randomly allotted to four groups, which included six pen replicates per treatment with 12 goslings per replicate. Four diets were formulated with maize, long-grained rice and glutinous rice as starch sources, with AM:AP ratios of 0.12, 0.23, 0.34, and 0.45. In vitro starch digestion of the four diets was measured, as well as the effect of AM:AP ratio on growth performance, serum amino-acid concentration and intestinal microbiota diversity of goslings.3. In terms of in vitro starch digestion, the increase in dietary AM:AP ratio resulted in a decrease followed by an increase in both rapidly and slowly digestible starch. The glucose release rate at an AM:AP ratio of 0.34 showed a steady upward trend.4. The in vivo study showed that increasing the AM:AP ratio resulted in a quadratic increase in body weight (BW) and average daily feed intake (ADFI; P<0.05). Goslings fed diets with an AM:AP ratio of 0.34 had lower (P<0.05) histidine and valine serum concentrations compared with the other three starch sources. Higher AM was beneficial to jejunal microbial and diversity. The species colonisation level of the jejunum microbiota samples at an AM:AP ratio of 0.34 was higher than that in the other groups.5. The results indicated that diets with an AM:AP ratio of 0.34 improved the growth performance and intestinal microbiota diversity of goslings. This may have been due to the higher level of resistant starch in amylose, which resulted in a slow release of intestinal glucose that acted as a substrate for the microbial species, thus providing conditions that were more conducive to growth.
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Li Q, Li R, Zhang S, Zhang Y, Liu M, Song Y, Liu C, Liu L, Wang X, Wang B, Xu X, Qin X. Relation of BMI and waist circumference with the risk of new-onset hyperuricemia in hypertensive patients. QJM 2022; 115:271-278. [PMID: 33486528 DOI: 10.1093/qjmed/hcaa346] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/19/2020] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND We aimed to evaluate the relationship of body mass index (BMI) and waist circumference (WC) with the risk of new-onset hyperuricemia, and examine possible effect modifies in general hypertensive patients. METHODS A total of 10 611 hypertensive patients with normal uric acid (UA) concentrations (<357 μmol/l) at baseline were included from the UA sub-study of the China Stroke Primary Prevention Trial. The primary outcome was new-onset hyperuricemia, defined as a UA concentration ≥417 μmol/l in men or ≥357 μmol/l in women at the exit visit. RESULTS During a median follow-up duration of 4.4 years, 1663 (15.7%) participants developed new-onset hyperuricemia. When analyzed separately, increased BMI (≥25 kg/m2, quartile 3-4; OR, 1.46; 95% CI: 1.29-1.65), or increased WC (≥85 cm for females, quartile 3-4; OR, 1.24; 95% CI: 1.08-1.42; and ≥84 cm for males, quartile 3-4; OR, 1.30; 95% CI: 1.01-1.67) were each significantly associated with higher risk of new-onset hyperuricemia. When WC was forced into the model with BMI simultaneously, its significant association with new-onset hyperuricemia disappeared in females (<85 vs. ≥85 cm; OR, 0.96, 95% CI: 0.81-1.13) or males (≥84 vs. <84 cm; OR, 1.13; 95% CI: 0.84-1.52); however, BMI was still significantly related with new-onset hyperuricemia (≥25 vs. <25 kg/m2; OR, 1.48; 95% CI: 1.27-1.73). Moreover, the positive BMI & new-onset hyperuricemia association was more pronounced in participants with higher time-averaged on-treatment systolic blood pressure (median: <138.3 vs. ≥138.3 mmHg; P-interaction = 0.041). CONCLUSIONS Higher BMI, but not WC, is significantly and independently associated with an increased risk of new-onset hyperuricemia among hypertensive patients.
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Ruan X, Du J, Lu D, Duan W, Jin F, Kong W, Wu Y, Dai Y, Yan S, Yin C, Li Y, Cheng J, Jia C, Liu X, Wu Q, Gu M, Ju R, Xu X, Yang Y, Jin J, Korell M, Montag M, Liebenthron J, Mueck AO. First live birth in China after cryopreserved ovarian tissue transplantation to prevent premature ovarian insufficiency. Climacteric 2022; 25:421-424. [PMID: 35504301 DOI: 10.1080/13697137.2022.2064215] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVE This article reports the first live birth after cryopreserved ovarian tissue transplantation to prevent premature ovarian insufficiency in China. METHODS A patient with myelodysplastic syndrome received ovarian tissue cryopreservation before hematopoietic stem cell transplantation, and six ovarian cortex strips were thawed and transplanted into her peritoneal pocket 2 years later. RESULTS Pregnancy occurred spontaneously 27 months after grafting, and a healthy girl was born at 38 weeks gestation. Until now, the child has developed normally without any major diseases. CONCLUSIONS We report the first live birth resulting from ovarian tissue cryopreservation and transplantation in China.
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