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Wu D, Kong X, Zhang W, Di W. Reconstruction of the TGF-β signaling pathway of Fasciola gigantica. Parasitol Res 2023; 123:51. [PMID: 38095703 DOI: 10.1007/s00436-023-08064-2] [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: 07/19/2023] [Accepted: 10/24/2023] [Indexed: 12/18/2023]
Abstract
In the present study, we reconstructed the transforming growth factor beta (TGF-β) signaling pathway for Fasciola gigantica, which is a neglected tropical pathogen. We defined the components involved in the TGF-β signaling pathway and investigated the transcription profiles of these genes for all developmental stages of F. gigantica. In addition, the presence of these components in excretory and secretory products (FgESP) was predicted via signal peptide annotation. The core components of the TGF-β signaling pathway have been detected in F. gigantica; classical and nonclassical single transduction pathways were constructed. Four ligands have been detected, which may mediate the TGF-β signaling pathway and BMP signaling pathway. Two ligand-binding type II receptors were detected, and inhibitory Smad7 was not detected. TLP, BMP-3, BMP-1, and ActRIb showed higher transcription in 42-day juvenile and 70-day juvenile, while ActRIIa, Smad1, ActRIIb, Smad8, KAT2B, and PP2A showed higher transcription in egg. TLM, Ski, Smad6, BMPRI, p70S6K, Smad2, Smad3, TgfβRI, Smad4, and p300 showed higher transcription in metacercariae. Four ligands, 2 receptors and 3 Smads are predicted to be present in the FgESP, suggesting their potential extrinsic function. This study should help to understand signal transduction in the TGF-β signaling pathway in F. gigantica. In addition, this study helps to illustrate the complex mechanisms involved in developmental processes and F. gigantica - host interaction and paves the way for further characterization of the signaling pathway in trematodes.
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Affiliation(s)
- Dongqi Wu
- College of Animal Science and Technology, Guangxi University, Nanning, Guangxi, China
- Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Guangxi University, Nanning, Guangxi, China
| | - Xinping Kong
- College of Animal Science and Technology, Guangxi University, Nanning, Guangxi, China
- Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Guangxi University, Nanning, Guangxi, China
| | - Weiyu Zhang
- College of Animal Science and Technology, Guangxi University, Nanning, Guangxi, China
- Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Guangxi University, Nanning, Guangxi, China
| | - Wenda Di
- College of Animal Science and Technology, Guangxi University, Nanning, Guangxi, China.
- Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Guangxi University, Nanning, Guangxi, China.
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Ren F, Zhang X, Gong H, Tian X, Kong X, Hu Y, Yang J, Shi W, Zhang H, Zhou L, Zhang G. Two different initial treatment regimens of Conbercept in diabetic macular edema: 12-month results from a multicenter randomized controlled study. Photodiagnosis Photodyn Ther 2023; 44:103745. [PMID: 37567331 DOI: 10.1016/j.pdpdt.2023.103745] [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: 03/03/2023] [Revised: 07/22/2023] [Accepted: 08/08/2023] [Indexed: 08/13/2023]
Abstract
BACKGROUND The optimal treatment regimen for diabetic macular edema (DME) and predictors for its treatment`s outcome need emerging evidence but currently poorly studied. METHODS A prospective, multicenter, open label randomized controlled study among adult patients with DME was conducted. Eyes were randomized to three or six doses initial Conbercept treatments. Additional injections were suggested pro re nata (PRN) over 12 months. Optical coherence tomography angiography (OCTA) was adopted to quantify the macular vessel density. Visual acuity gain and anatomical improvement and their associated factors were evaluated by multivariable linear regression. RESULTS 41 patients with 59 eyes participated in current study. Patients in both 3 + PRN (n = 32 eyes) or 6 + PRN (n = 27 eyes) treatments experienced similar best-corrected visual acuity (BCVA) gain and anatomical improvement, including the central macular thickness, foveal avascular aone (FAZ) and the retinal vessel density. Over 12 months, eyes in the 6 + PRN group received better changes of the deep capillary plexus (2.53 ± 5.45%). In multivariate linear regression, the age significantly affected visual outcome in 3 + PRN group (β = -0.014, P = 0.028), while the initial CMT (β = -0.001, P = 0.022) and FAZ area (β = -0.946, P = 0.007) associated with visual outcome in 6 + PRN group. Furthermore, the duration of diabetes exhibited significant results on CMT among 3 + PRN group (β= -7.516, P = 0.04). CONCLUSIONS Both 3 + and 6 + initial treatment regimens of Conbercept loading dose achieved parallel anatomical and functional visual improvement, while 6 + group had a trend of better treatment outcome. Older age, higher initial CMT and longer duration of diabetes might influence the clinical outcomes over 12 months from baseline.
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Affiliation(s)
- Fengmei Ren
- Department of Retina, Inner Mongolia Chaoju Eye Hospital, Hohhot 010050, China; Department of Cataract, Ulanqab Chaoju Eye Hospital, Ulanqab 012000, China
| | - Xiurong Zhang
- Department of Cataract, Baotou Chaoju Eye Hospital, Baotou 014060, China
| | - Hui Gong
- Department of Retina, Inner Mongolia Chaoju Eye Hospital, Hohhot 010050, China
| | - Xia Tian
- Department of Cataract, Ulanqab Chaoju Eye Hospital, Ulanqab 012000, China
| | - Xinping Kong
- Department of Cataract, Baotou Chaoju Eye Hospital, Baotou 014060, China
| | - Yongcheng Hu
- Department of Cataract, Bayannur Xudong Eye Hospital, Bayannur 015000, China
| | - Jijun Yang
- Department of Cataract, Dalad Chaoju Eye Hospital, Dalat Banner 014300, China
| | - Wei Shi
- Department of Retina, Inner Mongolia Chaoju Eye Hospital, Hohhot 010050, China
| | - Han Zhang
- Department of Retina, Inner Mongolia Chaoju Eye Hospital, Hohhot 010050, China
| | - Lili Zhou
- Department of Retina, Inner Mongolia Chaoju Eye Hospital, Hohhot 010050, China.
| | - Guisen Zhang
- Department of Retina, Inner Mongolia Chaoju Eye Hospital, Hohhot 010050, China.
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Zhang J, Song BQ, Kong X, Liu Y, Yang HL, Zong LH, Kong JY, Xu Y, Qiu HY, Wu DP. [Efficacy analysis of selinexor combined with hypomethylating agent in the treatment of refractory/relapsed acute myeloid leukemia exposed to venetoclax]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:936-939. [PMID: 38185524 PMCID: PMC10753257 DOI: 10.3760/cma.j.issn.0253-2727.2023.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Indexed: 01/09/2024]
Affiliation(s)
- J Zhang
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - B Q Song
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - X Kong
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - Y Liu
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - H L Yang
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - L H Zong
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - J Y Kong
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - Y Xu
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - H Y Qiu
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - D P Wu
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
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Wu LB, Kong X. [Mature cystic teratoma of the ovary with squamous cell carcinoma mixed small cell neuroendocrine carcinoma: report of a case]. Zhonghua Bing Li Xue Za Zhi 2023; 52:1050-1052. [PMID: 37805402 DOI: 10.3760/cma.j.cn112151-20230112-00031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Affiliation(s)
- L B Wu
- Department of Pathology, Lujiang People's Hospital, Hefei 231500, China
| | - X Kong
- Department of Pathology, the First Affiliated Hospital of University of Science and Technology of China, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230031, China
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Kong JY, Zong LH, Pu Y, Liu Y, Kong X, Li MY, Zhang J, Song BQ, Xue SL, Tang XW, Qiu HY, Wu DP. [Clinical efficacy and safety of venetoclax combined with multidrug chemotherapy in the treatment of 15 patients with relapsed or refractory early T-cell precursor acute lymphoblastic leukemia]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:649-653. [PMID: 37803838 PMCID: PMC10520236 DOI: 10.3760/cma.j.issn.0253-2727.2023.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Indexed: 10/08/2023]
Abstract
Objective: To explore the efficacy and safety of Venetoclax combined with multidrug chemotherapy in patients with relapsed or refractory early T-cell precursor acute lymphoblastic leukemia (R/R ETP-ALL) . Methods: This study retrospectively analyzed 15 patients with R/R ETP-ALL who received Venetoclax combined with multidrug chemotherapy from December 2018 to February 2022. Among them, eight cases were combined with demethylated drugs, four cases were combined with demethylated drugs and HAAG chemotherapy regimen, two cases were combined with demethylated drugs and CAG regimen, and one case was combined with Cladribine. Specific usage and dosage of Venetoclax: 100 mg on day 1, 200 mg on day 2, 400 mg on day 3-28, orally; when combined with azole antifungal drugs, dosage was reduced to 100 mg/d. Results: Fifteen patients (10 males and 5 females) with R/R ETP-ALL were treated with Venetoclax and multidrug chemotherapy with a median age of 35 (12-42) years old. Of 4 refractory and 11 relapsed patients, the efficacy was evaluated on the 21th day following combined chemotherapy: the overall response rate, the complete response (CR) rate, and the CR with incomplete hematological recovery (CRi) rate were 67.7% (10/15), 60.0% (9/15), and 6.7% (1/15), respectively. For the overall study population, the 12-month overall survival (OS) rate was 60.0%, and the median OS was 17.7 months. The disease-free survival (DFS) rate of all CR patients at 12 months was 60.0%, and the median DFS did not reach. About 14 patients had Ⅲ-Ⅳ hematological toxicity, but these adverse reactions were all controllable. No adverse reaction in the nervous system and tumor lysis syndrome occurred in this study, and no adverse reaction of organs above grade Ⅲ occurred. Conclusion: Venetoclax combined with multidrug chemotherapy may be a safe and promising treatment option for patients with R/R ETP-ALL.
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Affiliation(s)
- J Y Kong
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - L H Zong
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - Y Pu
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - Y Liu
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - X Kong
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - M Y Li
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - J Zhang
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - B Q Song
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - S L Xue
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - X W Tang
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - H Y Qiu
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
| | - D P Wu
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, National Clinical Research Center for Hematologic Diseases, Suzhou 215006, China
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Liu JY, Shao JY, Liu Y, Li H, Kong X, Zhao Y, Fan YM, Wu B, Zhao M. [Hepatitis B virus down-regulates the expression of inhibin and promotes the proliferation and survival of hepatocellular carcinoma cells]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:288-292. [PMID: 37137855 DOI: 10.3760/cma.j.cn501113-20230310-00102] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Objective: To investigate the effect and role of the hepatitis B virus (HBV) on the expression of inhibin (PHB) in the proliferation and survival of hepatocellular carcinoma (HCC) cells. Methods: The expression of PHB in 13 pairs of HBV-infected livers, normal livers and HepG2.2.15 and HepG2 cells was detected by real-time fluorescent quantitative PCR and Western blot. Liver tissues were collected from seven patients with chronic hepatitis B before and after antiviral (tenofovir) treatment, and the expression of PHB was detected by RT-PCR and Western blot. HepG2.2.15 cells were transfected with Pcmv6-AC-GFP-PHB, and control vectors were collected. DNA content was analyzed by flow cytometry. The proliferation level of each cell group was detected using the EdU cell proliferation assay. HepG2.2.15 cells transfected with Pcmv6-AC-GFP-PHB and the control vector were cultured in serum-free medium for 6 days. Apoptosis was measured at the indicated time points using fluorescence-activated cell sorting (FACS)-based Annexin-V/PI double staining. Results: Compared with normal liver tissue, the expression of PHB in HBV-infected liver tissue was down-regulated (P < 0.01). Compared with HepG2 cells, the expression of PHB in HepG2.2.15 cells was significantly decreased (P < 0.01). The expression level of PHB in liver tissue after antiviral treatment (tenofovir) was significantly higher than that before treatment (P < 0.01). Compared with the control vector, the proliferation rate of HepG2.2.15 cells transfected with Pcmv6-AC-GFP-PHB was significantly lower than that of the control vector, and the apoptosis rate of HepG2.2.15 cells transfected with the Pcmv6-AC-GFP-PHB vector was significantly higher than the control vector (P < 0.01). Conclusion: HBV down-regulates the expression of inhibin to promote the proliferation and survival of hepatocellular carcinoma cells.
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Affiliation(s)
- J Y Liu
- Zhoukou Central Hospital, Zhoukou 466000, China
| | - J Y Shao
- Zhoukou Central Hospital, Zhoukou 466000, China
| | - Y Liu
- Zhoukou Central Hospital, Zhoukou 466000, China
| | - H Li
- Zhoukou Central Hospital, Zhoukou 466000, China
| | - X Kong
- Zhoukou Central Hospital, Zhoukou 466000, China
| | - Y Zhao
- Zhoukou Central Hospital, Zhoukou 466000, China
| | - Y M Fan
- Zhoukou Central Hospital, Zhoukou 466000, China
| | - B Wu
- Zhoukou Central Hospital, Zhoukou 466000, China
| | - M Zhao
- Zhoukou Central Hospital, Zhoukou 466000, China
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Kong X, Luo Y, Li Y, Zhan D, Mao Y, Ma J. Preoperative prediction and histological stratification of intracranial solitary fibrous tumours by machine-learning models. Clin Radiol 2023; 78:e204-e213. [PMID: 36496260 DOI: 10.1016/j.crad.2022.10.013] [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: 05/25/2022] [Revised: 09/23/2022] [Accepted: 10/22/2022] [Indexed: 12/12/2022]
Abstract
AIM To explore the effectiveness and feasibility of machine-learning models based on magnetic resonance imaging (MRI) radiomics features in differentiating intracranial solitary fibrous tumour (ISFT) from angiomatous meningioma (AM) and stratifying ISFT histologically. MATERIALS AND METHODS This study retrospectively recruited 268 patients with a histological diagnosis of ISFT (n=120) or AM (n=148), and 116 of the ISFT patients were used for stratified analysis of histological grade. The radiomics features were extracted from axial T1-weighted imaging (WI), T2WI and contrast-enhanced T1WI sequences. All patients were assigned randomly to the training group and test group in a ratio of 7:3. The models were optimised by 10-fold cross-validation in the training group, and the independent test group was used for further testing of the models. The performances of machine-learning models based on radiomics, clinical, and fusion features in predicting and stratifying ISFT were evaluated. RESULTS ISFT and AM differed significantly in terms of age, tumour shape, enhancement pattern, and margin. There was no significant difference in the clinical characteristics between World Health Organization (WHO) grade II and WHO grade III ISFT. When used to differentiate ISFT from AM, the area under the curve (AUC) values of the machine-learning models based on radiomics, clinical, and fusion features in the test group were 0.917, 0.923 and 0.950, respectively. When used for histological stratification of ISFT, the model based on the radiomics signature achieved an AUC value of 0.786 in the test group. CONCLUSIONS Machine-learning models can contribute in the prediction and histological stratification of ISFT non-invasively, which can help clinical differential diagnosis and treatment decisions.
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Affiliation(s)
- X Kong
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100071, China
| | - Y Luo
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100071, China
| | - Y Li
- Department of Radiology, Beijing Fengtai Hospital, Beijing 100071, China
| | - D Zhan
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100071, China
| | - Y Mao
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100071, China
| | - J Ma
- Department of Radiology, Beijing Tiantan Hospital, Capital Medical University, Beijing 100071, China.
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Huang Y, Kong X, Zhou L, Shen P, Su P, Su H. Values of optical coherence tomography angiography for diagnosing diabetic retinopathy and evaluating treatment outcomes. J Fr Ophtalmol 2023; 46:25-32. [PMID: 36470750 DOI: 10.1016/j.jfo.2022.05.030] [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: 12/07/2021] [Revised: 04/25/2022] [Accepted: 05/12/2022] [Indexed: 12/04/2022]
Abstract
PURPOSE To compare the consistency between fundus fluorescein angiography (FFA) and optical coherence tomography angiography (OCTA) for the diagnosis of diabetic retinopathy (DR). MATERIALS AND METHODS Ninety-six diabetic patients (185 eyes) treated from January 2019 to December 2019 underwent OCTA and FFA. The image characteristics of fundus lesions were recorded. Sixty-nine patients (137 eyes) who were diagnosed with DR by both examinations and needed to receive panretinal photocoagulation (PRP) were selected. The retinal nerve fiber layer (RNFL) thickness, macular superficial vascular complex (SVC) and deep vascular complex (DVC) blood flow density, 300μm area surrounding foveal avascular zone (FAZ) (FD300) blood flow density and FAZ parameters were compared. RESULTS The Kappa coefficient of FFA and OCTA for diagnosing DR was 0.537 (P=0.000). FFA and OCTA had substantial consistency for detecting retinal microaneurysms and macular edema (Kappa coefficient=0.643/0.616, P=0.000), perfect consistency for detecting retinal neovascularization and retinal non-perfusion area (Kappa coefficient=0.809/0.832, P=0.000), and moderate consistency for detecting structural changes in the macular ring (Kappa coefficient=0.423, P=0.000). The RNFL thickness in the peripapillary and the superior temporal, temporal inferior, inferior nasal and superior nasal regions rose 1 week after PRP but declined 1 year after treatment (P<0.05). The macular SVC, DVC and FD300 blood flow density declined 1 week after PRP but rose 1 year after treatment (P<0.05). CONCLUSIONS OCTA shows consistency with FFA for diagnosing DR, which remedies the deficiency of FFA. The reduction in fundus lesions after PRP can be quantified by OCTA.
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Affiliation(s)
- Y Huang
- Ophthalmology Center, The Second People's Hospital of Foshan, 528000 Foshan, Guangdong Province, China
| | - X Kong
- Foshan Hospital Affiliated to Southern Medical University, 528000 Foshan, Guangdong Province, China
| | - L Zhou
- Ophthalmology Center, The Second People's Hospital of Foshan, 528000 Foshan, Guangdong Province, China
| | - P Shen
- Ophthalmology Center, The Second People's Hospital of Foshan, 528000 Foshan, Guangdong Province, China
| | - P Su
- Ophthalmology Center, The Second People's Hospital of Foshan, 528000 Foshan, Guangdong Province, China
| | - H Su
- Department of Ultrasonography, Nanhai Hospital, Guangdong Provincial People's Hospital, 528000 Foshan, Guangdong Province, China.
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Zheng M, Jiang X, Kong X, Guo Y, Zhang W, Di W. Proteomic analysis of Fasciola gigantica excretory and secretory products ( FgESPs) co-immunoprecipitated using a time course of infected buffalo sera. Front Microbiol 2022; 13:1089394. [PMID: 36620027 PMCID: PMC9816151 DOI: 10.3389/fmicb.2022.1089394] [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: 11/04/2022] [Accepted: 12/02/2022] [Indexed: 12/24/2022] Open
Abstract
Introduction Widespread Fasciola gigantica infection in buffaloes has caused great economic losses in buffalo farming. Studies on F. gigantica excretory and secretory products (FgESP) have highlighted their importance in F. gigantica parasitism and their potential in vaccine development. Identifying FgESP components involved in F. gigantica-buffalo interactions during different periods is important for developing effective strategies against fasciolosis. Methods Buffaloes were assigned to non-infection (n = 3, as control group) and infection (n = 3) groups. The infection group was orally administrated 250 metacercariae. Sera were collected at 3, 10, and 16 weeks post-infection (wpi) for the non-infection group and at 0 (pre-infection), 1, 3, 6, 8, 10, 13, and 16 wpi for the infection group. FgESP components interacting with sera from the non-infection and infection groups assay were pulled down by co-IP and identified using LC-MS/MS. Interacting FgESP components in infection group were subjected to Kyoto Encyclopedia of Genes and Genomes (KEGG) metabolic pathway and gene ontology (GO) functional annotation to infer their potential functions. Results and discussion Proteins of FgESP components identified in the non-infection group at 3, 10, and 16 wpi accounted for 80.5%, 84.3%, and 82.1% of all proteins identified in these three time points, respectively, indicating surroundings did not affect buffalo immune response during maintenance. Four hundred and ninety proteins were identified in the infection group, of which 87 were consistently identified at 7 time points. Following GO analysis showed that most of these 87 proteins were in biological processes, while KEGG analysis showed they mainly functioned in metabolism and cellular processing, some of which were thought to functions throughout the infection process. The numbers of specific interactors identified for each week were 1 (n = 12), 3 (n = 5), 6 (n = 8), 8 (n = 15), 10 (n = 23), 13 (n = 22), and 16 (n = 14) wpi, some of which were thought to functions in specific infection process. This study screened the antigenic targets in FgESP during a dense time course over a long period. These findings may enhance the understanding of molecular F. gigantica-buffalo interactions and help identify new potential vaccine and drug target candidates.
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Affiliation(s)
- Mengwei Zheng
- College of Animal Science and Technology, Guangxi University, Nanning, China,Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning, China,Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China,Guangxi Colleges and Universities Key Laboratory of Prevention and Control for Animal Disease, Nanning, China
| | - Xuelian Jiang
- College of Animal Science and Technology, Guangxi University, Nanning, China,Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning, China,Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China,Guangxi Colleges and Universities Key Laboratory of Prevention and Control for Animal Disease, Nanning, China
| | - Xinping Kong
- College of Animal Science and Technology, Guangxi University, Nanning, China,Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning, China,Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China,Guangxi Colleges and Universities Key Laboratory of Prevention and Control for Animal Disease, Nanning, China
| | - Yanfeng Guo
- College of Animal Science and Technology, Guangxi University, Nanning, China,Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning, China,Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China,Guangxi Colleges and Universities Key Laboratory of Prevention and Control for Animal Disease, Nanning, China
| | - Weiyu Zhang
- College of Animal Science and Technology, Guangxi University, Nanning, China,Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning, China,Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China,Guangxi Colleges and Universities Key Laboratory of Prevention and Control for Animal Disease, Nanning, China,*Correspondence: Weiyu Zhang, ✉
| | - Wenda Di
- College of Animal Science and Technology, Guangxi University, Nanning, China,Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning, China,Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Nanning, China,Guangxi Colleges and Universities Key Laboratory of Prevention and Control for Animal Disease, Nanning, China,Wenda Di, ✉
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Kong X, Zhang J, Li MY, Sun AN, Han Y, Tang XW, Qiu HY, Wu DP. [Treatment of infection by Ceftazidime Avibactam in hematopathy patients due to neutropenia]. Zhonghua Xue Ye Xue Za Zhi 2022; 43:1038-1042. [PMID: 36709111 PMCID: PMC9939339 DOI: 10.3760/cma.j.issn.0253-2727.2022.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Indexed: 01/30/2023]
Affiliation(s)
- X Kong
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - J Zhang
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - M Y Li
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - A N Sun
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Y Han
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - X W Tang
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - H Y Qiu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - D P Wu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
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Zhu X, Gao Z, Wang Y, Huang W, Li Q, Jiao Z, Liu N, Kong X. Utility of trio-based prenatal exome sequencing incorporating splice-site and mitochondrial genome assessment in pregnancies with fetal ultrasound anomalies: prospective cohort study. Ultrasound Obstet Gynecol 2022; 60:780-792. [PMID: 35726512 DOI: 10.1002/uog.24974] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 05/30/2022] [Accepted: 05/31/2022] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To evaluate the utility of trio-based prenatal exome sequencing (pES), incorporating splice-site and mitochondrial genome assessment, in the prenatal diagnosis of fetuses with ultrasound anomalies and normal copy-number variant sequencing (CNV-seq) results. METHODS This was a prospective study of 90 ongoing pregnancies with ultrasound anomalies that underwent trio-based pES after receiving normal CNV-seq results, from September 2020 to November 2021, in a single center in China. By using pES with a panel encompassing exome coding and splicing regions as well as mitochondrial genome for fetuses and parents, we identified the underlying genetic causes of fetal anomalies, incidental fetal findings and parental carrier status. Information on pregnancy outcome and the impact of pES findings on parental decision-making was collected. RESULTS Of the 90 pregnancies included, 28 (31.1%) received a diagnostic result that could explain the fetal ultrasound anomalies. The highest diagnostic yield was noted for brain abnormalities (3/6 (50.0%)), followed by hydrops (4/9 (44.4%)) and skeletal abnormalities (13/34 (38.2%)). Collectively, 34 variants of 20 genes were detected in the 28 diagnosed cases, with 55.9% (19/34) occurring de novo. Variants of uncertain significance (VUS) associated with fetal phenotypes were detected in six (6.7%) fetuses. Interestingly, fetal (n = 4) and parental (n = 3) incidental findings (IFs) were detected in seven (7.8%) cases. These included two fetuses carrying a de-novo likely pathogenic (LP) variant of the CIC and FBXO11 genes, respectively, associated with neurodevelopmental disorders, and one fetus with a LP variant in a mitochondrial gene. The remaining fetus presented with unilateral renal dysplasia and was incidentally found to carry a pathogenic PKD1 gene variant resulting in adult-onset polycystic kidney, which was later confirmed to be inherited from the mother. In addition, parental heterozygous variants associated with autosomal recessive diseases were detected in three families, including one with additional fetal diagnostic findings. Diagnostic results or fetal IFs contributed to parental decision-making about termination of the pregnancy in 26 families (26/72 (36.1%)), while negative pES results or identification of VUS encouraged 40 families (40/72 (55.6%)) to continue their pregnancy, which ended in a live birth in all cases. CONCLUSION Trio-based pES can provide additional genetic information for pregnancies with fetal ultrasound anomalies without a CNV-seq diagnosis. The incidental findings and parental carrier status reported by trio-based pES with splice-site and mitochondrial genome analysis extend its clinical application, but careful genetic counseling is warranted. © 2022 International Society of Ultrasound in Obstetrics and Gynecology.
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Affiliation(s)
- X Zhu
- Genetics and Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Z Gao
- Genetics and Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Y Wang
- Genetics and Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - W Huang
- Genetics and Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Q Li
- Genetics and Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Z Jiao
- Genetics and Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - N Liu
- Genetics and Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - X Kong
- Genetics and Prenatal Diagnosis Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Kong X, Cao R, Lu T, Gao S, Sun G, Cao F. Remote telemedicine strategy based on multi-risks intervention by intelligent wearable health devices in elderly comorbidities patients with coronary heart disease. Eur Heart J 2022. [PMCID: PMC9619686 DOI: 10.1093/eurheartj/ehac544.2813] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Background Telemedicine based on wearable intelligent health devices becomes increasingly promissing for the elderly due to the accelerated aging population. Especially during COVID-19 pandemic, more elderly coronary heart disease patients with chronic comorbidities are in less secondary prevention management at home. Objective To explore the prevention effect on main cardiovascular risk factors and repeated hospitalization in elderly comorbidities patients by telemedicine intervention based on multi-parameter wearable monitoring devices. Methods Total of 337 patients with comorbidities of coronary heart disease, hypertension and diabetes, with age more than 65 years old were recruited in the study from October 2019 to January 2021. They were randomly divided into control group and telemedcine intervention group. The latter used remote multi-parameter wearable devices to measure blood pressure, glycemic and electrocardiograph at home every day. A real-time monitoring platform would alarm any abnormal data to the doctors. Both doctors and patients can read the measurement results on a real-time mobile phone APP and interact with each other remotely twice a week routinely. A medical team remotely indicated the medications, while offering guidance on lifestyle. In contrast, the control group adopted traditional outpatient medical strategy to manage diseases. Results A total of 306 patients were enrolled in the follow-up experiment finally: 153 in the intervention group and 153 in the control group. Patient characteristics at baseline were balanced between two groups. After 12 months, compared with the control group, the intervention group saw the following metrics significantly reduced: systolic blood pressure (SBP) (131.66±9.43 vs 137.20±12.02 mmHg, P=0.000), total cholesterol (TC) (3.65±0.79 vs 4.08±0.82 mmol/L, P=0.001), low density lipoprotein cholesterol (LDL-C) (2.06±0.53 vs 2.38±0.61 mmol/L, P=0.002), and fasting blood glucose (FBG) (6.26±0.75 vs 6.81±0.97 mmol/L, P=0.000), while the following metrics went up significantly: blood pressure control rate (77.3% vs 59.1%, P=0.039), blood lipid control rate(39.4% vs 21.2%, P=0.037), glycemic control rate (71.2% vs 51.5%, P=0.031), and medication adherence score (7.10±0.77 vs 6.80±0.73, P=0.020). Linear regression model analysis indicates that when interaction frequency ≥1.53, 2.47 and 1.15 times/week, the SBP, LDL-C and FBG levels would be controlled, respectively. Cox survival analysis finds that the hospitalization rate of intervention group is significantly lower than that of the control group (24.18% vs 35.29%, P=0.031). Conclusion The telemedicine interactive intervention based on multi-parameter wearable devices provides effectively improvement of cardiovascular risk controlling, medication adherence, while reducing the hospitalization rate of patients. A frequency of doctor-patient interactions more than 2 times/week is beneficial for disease management the elderly at home. Funding Acknowledgement Type of funding sources: Foundation. Main funding source(s): Key scientific research project of Health Commission
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Affiliation(s)
- X Kong
- Chinese PLA General Hospital , Beijing , China
| | - R Cao
- Chinese PLA General Hospital , Beijing , China
| | - T Lu
- Chinese PLA General Hospital , Beijing , China
| | - S Gao
- Chinese PLA General Hospital , Beijing , China
| | - G Sun
- Chinese PLA General Hospital , Beijing , China
| | - F Cao
- Chinese PLA General Hospital , Beijing , China
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Jiang F, Li J, Kong X, Qu H, Sun P. EP08.02-076 Efficacy and Safety Evaluations of Anlotinib in Patients with Advanced Non-small Cell Lung Cancer Treated with Bevacizumab. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Wang L, Sun Y, Dai X, Kong X, MA L, Dai X, MA L, Jiang L. POS0812 CAROTID INTIMA-MEDIA THICKNESS/DIAMETER RATIO AND PEAK SYSTOLIC VELOCITY AS RISK FACTORS FOR NEUROLOGICAL SEVERE ISCHEMIC EVENTS IN TAKAYASU’S ARTERITIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.3666] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundTakayasu’s arteritis (TAK) is an idiopathic systemic vasculitis characterized by the involvement of the aorta and its major branches [1]. The supra-aortic arteries are often involved in TAK, with the reported prevalence ranging from 40% to 84% [2-3]. Importantly, patients with supra-aortic involvement carry a higher risk of neurological severe ischemic events (SIE) [4-5]. The common carotid artery (CCA) is the most affected artery and is more closely associated with neurologic symptoms than other supra-aortic arteries [6]. Ultrasonography (US) has been regarded as the most popular, user-friendly, and repeatable tool for the diagnosis and follow-up of CCA injuries.ObjectivesOur aim was to characterize TAK with supra-aortic involvement and determine the associations between clinical features, carotid US parameters, and neurological SIE.MethodsPatients with supra-aortic involvement including brachiocephalic trunk, bilateral common carotid artery and internal carotid artery, and bilateral subclavian and vertebral artery and baseline carotid US examination were enrolled. Bilateral carotid diameter, intima-media thickness (IMT), and peak systolic velocity (PSV) were measured by US. Then, IMT/diameter ratio (IDR) was calculated. Risk factors associated with neurological SIE were analyzed by multivariate logistic regression.ResultsTotally, 295 patients were included, of whom 93 (31.5%) experienced neurological SIE, with common carotid artery involved (81.7%). Involved supra-aortic artery distribution (p=0.04) and number (p<0.01) differed between neurologic and non-neurologic SIE subjects, showing higher prevalence of common carotid and vertebral artery involvement in cases with neurological SIE and 57.1% neurological SIE patients having more than four involved arteries. The left carotid IMT (p=0.03) and IDR (p<0.01) differed between patients with and without neurological SIE. The left carotid IDR (cut-off value ≥0.55, odds ratio [OR] 4.46; 95% confidence interval [CI] 2.05-9.71; p<0.01) and PSV (≤76 cm/s, OR 3.38; 95% CI 1.62-7.04; p<0.01) and involved supra-aortic artery number (≥4, OR 3.16; 95% CI 1.54-6.47; p<0.01) were independently associated with neurological SIE.ConclusionThe left carotid IDR, PSV and involved supra-aortic artery number would perform as valuable markers for recognizing neurological SIE in TAK patients with supra-aortic lesions.References[1]Kerr GS, Hallahan CW, Giordano J, et al. Takayasu arteritis. Ann Intern Med 1994; 120: 919-29.[2]Cong XL, Dai SM, Feng X, et al. Takayasu’s arteritis: clinical features and outcomes of 125 patients in China. Clin Rheumatol 2010; 29: 973-81.[3]Mirouse A, Biard L, Comarmond C, et al. Overall survival and mortality risk factors in Takayasu’s arteritis: a multicenter study of 318 patients. J Autoimmun 2019; 96: 35-9.[4]Porter A, Youngstein T, Tombetti E, Mason JC. Biologic therapy in supra-aortic Takayasu arteritis can improve symptoms of cerebral ischaemia without surgical intervention. Rheumatology (Oxford) 2020; 59 Suppl 3: iii28-32.[5]Michailidou D, Rosenblum JS, Rimland CA, Marko J, Ahlman MA, Grayson PC. Clinical symptoms and associated vascular imaging findings in Takayasu’s arteritis compared to giant cell arteritis. Ann Rheum Dis 2020; 79: 262-7.[6]Schäfer VS, Jin L, Schmidt WA. Imaging for diagnosis, monitoring, and outcome prediction of large vessel vasculitides. Curr Rheumatol Rep 2020; 22: 76.Disclosure of InterestsNone declared
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Dai X, Wang L, Wu S, Wang J, Sun Y, Ji Z, MA L, Dai X, Chen H, MA L, Kong X, Jiang L. POS0799 BIOMARKER CHANGES IN TAKAYASU ARTERITIS AFTER TOFACITINIB TREATMENT AND THE MOLECULAR SIGNATURE ASSOCIATED WITH DISEASE CHARACTERISTICS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.1940] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundTakayasu’s arteritis (TAK) is a chronic, non-specific, granulomatous macrovasculitis and its pathogenesis is still unclear. The increasing evidence indicated that multiple pathological process involved in the development of TAK. According to previous reports, multiple biomarkers representative different pathological process (1-3), However, which biomarker can closely reflect disease activity or vascular changes and whether these abnormal processes can be prevented by current therapies remained unknown.ObjectivesTo analyze changes of serum cytokine, chemokine, and growth factor profiles in patients with Takayasu arteritis (TAK) after tofacitinib treatment and explore potential molecular signatures related with various disease characteristicsMethodsSeventeen patients from a TAK cohort treated with tofacitinib and 12 healthy controls were recruited in this study. Potential biomarkers with TAK including cytokines, MMPs, chemokines and growth factors were detected in these patients (0, 6, 12 months) and healthy controls. Molecular changes, disease activity, disease remission, and vascular imaging changes were analyzed in these patients after treatment. Furthermore, molecule signatures associated with these clinical features/outcomes were explored via radar plot and correlation analysis.ResultsAt baseline, all the patients were in active status. Meanwhile, patients’ cytokines (PTX3, IL-6, IFN-γ), chemokines (IL-16, CCL22, CCL2), growth factor (VEGF) and MMP9 were significantly higher than those of healthy controls (all p<0.05), while FGF-2 was significantly lower in patients with TAK (p=0.02). After treatment, 94.12% of patients achieved complete remission at 6 and 12 months; patients’ ESR and CRP levels were significantly reduced at 6 months (p=0.02, p=0.046 respectively); vascular improvement were observed in 6 (35.29%) patients at 12 months. With regards to these molecules, IL-10 was increased at 6 months compared with its baseline level (p=0.007). No changes were observed in other cytokines, chemokines, or growth factors. Besides, the radar plot demonstrated that PTX3 was closely correlated with disease activity. In addition, patients with vascular imaging improvement had relatively higher baseline levels of TNFα, ESR, and CRP (p=0.04, p=0.056, p=0.07, respectively), lower CCL22, FGF, and PDGF-AB levels (p=0.056, p=0.06 and p=0.08 respectively) compared with patients without it.ConclusionMultiple molecules representative different pathological mechanism participated in the pathogenesis of TAK. PTX3 was a prominent marker for disease activity, and CCL22 may have a predictive value for vascular imaging changes.References[1]Dagna L, Salvo F, Tiraboschi M, et al. Pentraxin-3 as a marker of disease activity in Takayasu arteritis. Ann Intern Med. 2011;155(7):425-433. doi:10.7326/0003-4819-155-7-201110040-00005[2]Sun Y, Kong X, Wu S, et al. YKL-40 as a new biomarker of disease activity in Takayasu arteritis. Int J Cardiol. 2019; 293: 231-237[3]Dong H, Zhang Y, Zou Y, et al. Elevated chemokines concentration is associated with disease activity in Takayasu arteritis. Cytokine. 2021; 143: 155515Disclosure of InterestsNone declared
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Kong X, Wu S, Dai X, Yu W, Wang J, Sun Y, Ji Z, MA L, Dai X, Chen H, MA L, Jiang L. POS0491 A COMPREHENSIVE PROFILE OF CHEMOKINES IN THE PERIPHERAL BLOOD AND VASCULAR TISSUE OF PATIENTS WITH TAKAYASU ARTERITIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.1395] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundTakayasu arteritis (TAK) is a chronic granulomatous large vessel vasculitis with multiple immune cells involved [1]. In TAK, vascular lesions originate from the vascular adventitia. The vascular adventitia is rich in vasa vasorum, which can transport peripheral immune cells to active vascular lesions in the early stage of lesion development [2]. Thus, chemokines played critical roles in the pathogenesis of TAK. It has been reported that the levels of RANTES, CCL2, CCL20, CXCL8, and CXCL10 were elevated in TAK, and their levels were correlated with disease activity [3, 4]. However, the profile of chemokines in TAK has not been clearly elucidated.ObjectivesThis study aimed to investigate chemokine profile in peripheral blood and vascular tissue of patients with TAK.MethodsA total of 58 patients with TAK and 53 healthy controls were enrolled. Chemokine array assay was performed in five patients with TAK and three controls. Chemokines with higher levels were preliminarily validated in 20 patients and controls. The validated chemokines were further confirmed in another group of samples with 25 patients and 25 controls. Their expression and distribution were also examined in vascular tissue from 8 patients and 5 controls. Correlations between these chemokines and peripheral immune cells, cytokines, disease activity parameters were analyzed. Their serum changes were also investigated in these 45 patients after glucocorticoids and immunosuppressive treatment.ResultsPatients and controls were age and sex-matched. Twelve higher chemokines and 4 lower chemokines were found based on the chemokine array. After validation, increase of 5 chemokines were confirmed in patients with TAK, including CCL22, RANTES, CXCL16, CXCL11, and IL-16. Their expressions were also increased in vascular tissue of patients with TAK. In addition, levels of RANTES and IL-16 were positively correlated with peripheral CD3+CD4+ T cell numbers. Close localization of CCL22, CXCL11 or IL-16 with inflammatory cells were also observed in TAK vascular tissue. No correlations were found between these chemokines and cytokines (IL-6, IL-17, IFN-γ) or inflammatory parameters (ESR, CRP). No differences were observed regarding with these chemokines between active and inactive patients. After treatment, increase of CCL22 and decrease of RANTES, CXCL16 were found, while no changes were showed in levels of CXCL11 and IL-16.ConclusionCCL22, RANTES, CXCL16, CXCL11, and IL-16 were identified as the major chemokines involved in the recruitment of immune cells in the vascular tissue of patients with TAK. Additionally, the persistently high levels of CCL22, CXCL11, and IL-16 observed after treatment indicate their role in vascular chronic inflammation or fibrosis and demonstrate the need for developing more efficacious treatment options.References[1]Seyahi E. Takayasu arteritis: an update. Curr Opin Rheumatol. 2017 Jan;29(1):51-56.[2]Corbera-Bellalta M, Planas-Rigol E, Lozano E, Terrades-García N, Alba MA, Prieto-González S, García-Martínez A, Albero R, Enjuanes A, Espígol-Frigolé G, Hernández-Rodríguez J, Roux-Lombard P, Ferlin WG, Dayer JM, Kosco-Vilbois MH, Cid MC. Blocking interferon γ reduces expression of chemokines CXCL9, CXCL10 and CXCL11 and decreases macrophage infiltration in ex vivo cultured arteries from patients with giant cell arteritis. Ann Rheum Dis. 2016 Jun;75(6):1177-86.[3]Noris M, Daina E, Gamba S, Bonazzola S, Remuzzi G. Interleukin-6 and RANTES in Takayasu arteritis: a guide for therapeutic decisions? Circulation. 1999 Jul 6;100(1):55-60.[4]Dong H, Zhang Y, Zou Y, Chen Y, Yue J, Liu H, Jiang X. Elevated chemokines concentration is associated with disease activity in Takayasu arteritis. Cytokine. 2021 Jul;143:155515.Disclosure of InterestsNone declared.
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Gallet A, Rigby S, Tallman TN, Kong X, Hajirasouliha I, Liew A, Liu D, Chen L, Hauptmann A, Smyl D. Structural engineering from an inverse problems perspective. Proc Math Phys Eng Sci 2022; 478:20210526. [PMID: 35153609 PMCID: PMC8791046 DOI: 10.1098/rspa.2021.0526] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 12/07/2021] [Indexed: 01/16/2023] Open
Abstract
The field of structural engineering is vast, spanning areas from the design of new infrastructure to the assessment of existing infrastructure. From the onset, traditional entry-level university courses teach students to analyse structural responses given data including external forces, geometry, member sizes, restraint, etc.-characterizing a forward problem (structural causalities → structural response). Shortly thereafter, junior engineers are introduced to structural design where they aim to, for example, select an appropriate structural form for members based on design criteria, which is the inverse of what they previously learned. Similar inverse realizations also hold true in structural health monitoring and a number of structural engineering sub-fields (response → structural causalities). In this light, we aim to demonstrate that many structural engineering sub-fields may be fundamentally or partially viewed as inverse problems and thus benefit via the rich and established methodologies from the inverse problems community. To this end, we conclude that the future of inverse problems in structural engineering is inexorably linked to engineering education and machine learning developments.
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Affiliation(s)
- A. Gallet
- Department of Civil and Structural Engineering, University of Sheffield, Sheffield, UK
| | - S. Rigby
- Department of Civil and Structural Engineering, University of Sheffield, Sheffield, UK
| | - T. N. Tallman
- School of Aeronautics and Astronautics, Purdue University, West Lafayette, IN, USA
| | - X. Kong
- Department of Physics and Engineering Science, Coastal Carolina University, Conway, SC, USA
| | - I. Hajirasouliha
- Department of Civil and Structural Engineering, University of Sheffield, Sheffield, UK
| | - A. Liew
- Department of Civil and Structural Engineering, University of Sheffield, Sheffield, UK
| | - D. Liu
- School of Physical Sciences, University of Science and Technology of China, Hefei, People’s Republic of China
| | - L. Chen
- Department of Civil and Structural Engineering, University of Sheffield, Sheffield, UK
| | - A. Hauptmann
- Research Unit of Mathematical Sciences, University of Oulu, Oulu, Finland
- Department of Computer Science, University College London, London, UK
| | - D. Smyl
- Department of Civil, Coastal, and Environmental Engineering, University of South Alabama, Mobile, AL, USA
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Fang L, Kong X, Wen Y, Li J, Yin Y, Li L, Ma G, Wu K, Zeng S. Characterization of embryo and protocorm development of Paphiopedilum spicerianum. Plant Physiol Biochem 2021; 167:1024-1034. [PMID: 34598022 DOI: 10.1016/j.plaphy.2021.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 06/01/2021] [Revised: 08/31/2021] [Accepted: 09/02/2021] [Indexed: 06/13/2023]
Abstract
Paphiopedilum spicerianum (P. spicerianum) is a rare orchid species with high ornamental value. Asymbiotic germination is the most efficient propagation method for conservation and commercial purposes because clonal propagation is very difficult and the separation of native species of Paphiopedilum through aseptic seeding is uncommon owing to their conservatism. However, a high protocorm developmental arresting rate during the asymbiotic germination is the major obstacle for seedling establishment. The fundamental understanding of embryo and protocorm developmental mechanisms will guide the development of an effective propagation method. The morphological and physiological characterization of the key developmental process of embryos and protocorms shows that the mature seeds of P. spicerianum consist of a spherical embryo without an endosperm. Seed coats become heavily lignified once the embryo is mature. Embryo cell size is relatively uniform, and significant structure polarity and cell size gradients occur at the early protocorm stage. The high level of auxin and cytokinin accumulation at the early stage of embryo development and protocorm stage may help to facilitate cell division. The transcriptome profiles of protocorms at three different developmental stages were compared to explore the regulatory mechanism of protocorm development. Kyoto Encyclopedia of Genes and Genomes enrichment analysis revealed that differentially expressed genes were implicated in secondary metabolite metabolism, plant hormone signal transduction and photosynthesis. The temporal expression patterns of candidate genes related to embryo and shoot development were analyzed to reveal their roles in protocorm development: in the early stage of protocorm development, embryonic development related genes such as SERKs and BBM1 were active, while in the late stage of protocorm, shoot apical meristem related genes such as WOX8, CLAVATA2, CUC2, and SCR were active.
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Affiliation(s)
- Lin Fang
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China.
| | - Xinping Kong
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Yingting Wen
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Ji Li
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Yuying Yin
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Lin Li
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China.
| | - Guohua Ma
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China.
| | - Kunlin Wu
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China.
| | - Songjun Zeng
- Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China; Key Laboratory of South China Agricultural Plant Molecular Analysis and Gene Improvement, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, China.
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Ma L, Wu B, Jin X, Sun Y, Kong X, Ji Z, Chen R, Cui X, Shi H, Jiang L. POS0817 A NOVEL MODEL TO ASSESS DISEASE ACTIVITY IN TAKAYASU ARTERITIS BASED ON 18F-FDG-PET/CT: A CHINESE COHORT STUDY. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.3739] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Takayasu arteritis (TA) is a condition characterized by major large-vessel vasculitis (LVV), and is most commonly found in young women (age <40 years) of East Asia countries. 18F-FDG-PET/CT has been widely used in the diagnosis and follow-up of cancers to gather functional information based on metabolic activity. In the present study, we evaluated the value of different parameters in 18F-FDG-PET/CT for assessing active TA disease, and we establish a simple, quantifiable, and effective disease activity evaluation model based on 18F-FDG-PET/CT. A comparison in the ability to identify active disease was performed between the established Kerr score and the new 18F-FDG-PET/CT was also performed.Objectives:To investigate the utility of 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG-PET/CT) in assessing disease activity in TA.Methods:Ninety-one patients with TA, were recruited from a Chinese cohort from October 2017 to January 2019. Clinical data, acute-phase reactants (APRs), and 18F-FDG-PET/CT findings were simultaneously recorded. The Physician Global Assessment was used as the gold standard to assess TA disease activity. The value of using 18F-FDG-PET/CT to identify active disease was evaluated, using erythrocyte sedimentation rate (ESR) as a reference. Disease activity assessment models were constructed and concordance index (C-index), net reclassification index (NRI), and integrated discrimination index (IDI) were evaluated to compare the benefits of the new modes with ESR and Kerr score.Results:In total, 64 (70.3%) cases showed active disease. Higher levels of ESR and CRP, and lower interleukin (IL)-2R levels, were observed in active cases. 18F-FDG-PET/CT parameters, including SUVmean, SUVratio1, SUVratio2, sum of SUVmean, and sum of SUVmax, were significantly higher in active disease groups. The C index threshold of ESR to indicate active disease was 0.78 (95% CI: 0.69-0.88). The new activity assessment model combining ESR, sum of SUVmean, and IL-2R showed significant improvement in C index over the ESR method (0.96 vs. 0.78, P < 0.01; NRI 1.63, P < 0.01; and IDI 0.48, P < 0.01). The new model also demonstrated modest superiority to Kerr score assessment (0.96 vs. 0.87, P = 0.03; NRI 1.19, P < 0.01; and IDI 0.33 P < 0.01).Conclusion:A novel 18F-FDG-PET/CT-based method that involves combining the sum of SUVmean with ESR score and IL-2R levels demonstrated superiority in identifying active TA compared to conventional methods.References:[1]Kerr GS, Hallahan CW, Giordano J, Leavitt RY, Fauci AS, Rottem M, et al. Takayasu arteritis. Ann Intern Med 1994;120:919-29.[2]Hoffman GS, Ahmed AE. Surrogate markers of disease activity in patients with Takayasu arteritis. A preliminary report from The International Network for the Study of the Systemic Vasculitides (INSSYS). Int J Cardiol 1998;66 Suppl 1:S191-4; discussion S195.[3]Misra R, Danda D, Rajappa SM, Ghosh A, Gupta R, Mahendranath KM, et al. Development and initial validation of the Indian Takayasu Clinical Activity Score (ITAS2010). Rheumatology (Oxford) 2013;52:1795-801.[4]Bardi M, Diamantopoulos AP. EULAR recommendations for the use of imaging in large vessel vasculitis in clinical practice summary. Radiol Med 2019;124:965-972.[5]Spick C, Herrmann K, Czernin J. 18F-FDG PET/CT and PET/MRI Perform Equally Well in Cancer: Evidence from Studies on More Than 2,300 Patients. J Nucl Med 2016;57:420-30.Disclosure of Interests:None declared
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Ding M, Wang G, Yuan P, He S, Shao T, Liu C, Kong X. [Research progress in the role and mechanism of polysaccharides in regulating glucose and lipid metabolism]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:471-475. [PMID: 33849842 DOI: 10.12122/j.issn.1673-4254.2021.03.23] [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] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Polysaccharides are a group of compounds composed of multiple monosaccharides of the same or different structures combined by glycosidic bonds, and are widely found in animals and plants and in the cell walls of microorganisms. Polysaccharides possess the advantages of high safety and low toxicity. Recent studies revealed that polysaccharides have a wide range of biological activities including immunoregulation, anti-tumor, antiviral, antioxidant activities, and blood glucose-and lipid- lowering effects. The effects of polysaccharides in improving insulin sensitivity and regulating glucose and lipid metabolism have drawn much attention from researchers. Many polysaccharides can reduce blood glucose and blood lipid by repairing pancreatic islet cells, improving insulin resistance, regulating intestinal flora, enhancing antioxidant capacity, and regulating the activities of key enzymes in glucose and lipid metabolism. This reviews examines the role and mechanism of polysaccharides in regulating glucose and lipid metabolism. The mechanisms of polysaccharide in regulating glucose metabolism include repairing islet cells and increasing insulin content, increasing insulin sensitivity and improving insulin resistance, regulating the activity of key enzymes in glucose metabolism, increasing synthesis of liver glycogen, and regulating intestinal flora. Polysaccharides can also regulate glucose metabolism by improving immune regulation and antagonizing glucagon. Polysaccharide also regulate lipid metabolism by regulating lipid absorption, expression of the related genes such as PPAR-α, enzyme activities in lipid metabolism, improving antioxidant capacity, and modulating intestinal flora and signaling pathways.
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Affiliation(s)
- M Ding
- School of Pharmacy, Drug Research and Development Center, Wannan Medical College, Wuhu 241002, China
| | - G Wang
- School of Pharmacy, Drug Research and Development Center, Wannan Medical College, Wuhu 241002, China.,Anhui Provincial Engineering Research Center for Polysaccharide Drugs, Anhui Provincial Key Laboratory of Active Biological Macromolecules, Wuhu 241002, China
| | - P Yuan
- School of Pharmacy, Drug Research and Development Center, Wannan Medical College, Wuhu 241002, China.,Anhui Provincial Engineering Research Center for Polysaccharide Drugs, Anhui Provincial Key Laboratory of Active Biological Macromolecules, Wuhu 241002, China
| | - S He
- School of Pharmacy, Drug Research and Development Center, Wannan Medical College, Wuhu 241002, China
| | - T Shao
- School of Pharmacy, Drug Research and Development Center, Wannan Medical College, Wuhu 241002, China.,Anhui Provincial Engineering Research Center for Polysaccharide Drugs, Anhui Provincial Key Laboratory of Active Biological Macromolecules, Wuhu 241002, China
| | - C Liu
- School of Pharmacy, Drug Research and Development Center, Wannan Medical College, Wuhu 241002, China.,Anhui Provincial Engineering Research Center for Polysaccharide Drugs, Anhui Provincial Key Laboratory of Active Biological Macromolecules, Wuhu 241002, China
| | - X Kong
- Anhui Provincial Engineering Research Center for Polysaccharide Drugs, Anhui Provincial Key Laboratory of Active Biological Macromolecules, Wuhu 241002, China.,Department of Endocrinology, Yijishan Hospital, First Affiliated Hospital of Wannan Medical College, Wuhu 241001, China
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Zhu X, Chen M, Wang H, Guo Y, Chau MHK, Yan H, Cao Y, Kwok YKY, Chen J, Hui ASY, Zhang R, Meng Z, Zhu Y, Leung TY, Xiong L, Kong X, Choy KW. Clinical utility of expanded non-invasive prenatal screening and chromosomal microarray analysis in high-risk pregnancy. Ultrasound Obstet Gynecol 2021; 57:459-465. [PMID: 32198896 DOI: 10.1002/uog.22021] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/27/2020] [Accepted: 03/13/2020] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To evaluate the utility of expanded non-invasive prenatal screening (NIPS), compared with chromosomal microarray analysis (CMA), for the detection of chromosomal abnormalities in high-risk pregnancies. METHODS This was a multicenter retrospective study of singleton pregnancies at high risk for chromosomal abnormality. Patients who underwent expanded NIPS and CMA sequentially during pregnancy from 2015 to 2019 were included in the analysis. Pregnancies with a positive result for sex chromosome aneuploidy were excluded as the full details could not be retrieved. The utility of expanded NIPS and CMA for detection of chromosomal abnormalities in this cohort was compared by assessing the concordance between the results. RESULTS Of the 774 included high-risk pregnancies, 550 (71.1%) had a positive NIPS result, while a positive CMA result was detected in 308 (39.8%) cases. The rate of full or partial concordance between NIPS and CMA was 82.2%, 59.6% and 25.0% for trisomies 21, 18 and 13, respectively. For rare aneuploidies and segmental imbalances, NIPS and CMA results were fully or partially concordant in 7.5% and 33.3% of cases, respectively. Copy-number variants < 5 Mb were detected more often by CMA, with an incidence of 7.9% (61/774) compared with 3.1% (24/774) by NIPS. A genetic aberration was detected by CMA in 1 in 17 (5.8%) high-risk pregnancies that had a negative or non-reportable NIPS result. CONCLUSION CMA allows for comprehensive detection of genome-wide chromosomal abnormalities in high-risk pregnancies. CMA should be offered instead of expanded NIPS for high-risk pregnancies. Copyright © 2020 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- X Zhu
- Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Hong Kong, SAR, China
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
- Genetics and Prenatal Diagnosis Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - M Chen
- Department of Fetal Medicine and Prenatal Diagnosis, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - H Wang
- Department of Central Laboratory, Shenzhen Baoan Women's and Children's Hospital, Jinan University, Guangdong, China
| | - Y Guo
- Genetics and Prenatal Diagnosis Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - M H K Chau
- Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Hong Kong, SAR, China
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
| | - H Yan
- Department of Fetal Medicine and Prenatal Diagnosis, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Y Cao
- Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Hong Kong, SAR, China
- The Chinese University of Hong Kong, Baylor College of Medicine Joint Center for Medical Genetics, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - Y K Y Kwok
- Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - J Chen
- Department of Fetal Medicine and Prenatal Diagnosis, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - A S Y Hui
- Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - R Zhang
- Department of Central Laboratory, Shenzhen Baoan Women's and Children's Hospital, Jinan University, Guangdong, China
| | - Z Meng
- Department of Central Laboratory, Shenzhen Baoan Women's and Children's Hospital, Jinan University, Guangdong, China
| | - Y Zhu
- Department of Central Laboratory, Shenzhen Baoan Women's and Children's Hospital, Jinan University, Guangdong, China
| | - T Y Leung
- Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Hong Kong, SAR, China
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
- The Chinese University of Hong Kong, Baylor College of Medicine Joint Center for Medical Genetics, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - L Xiong
- Department of Central Laboratory, Shenzhen Baoan Women's and Children's Hospital, Jinan University, Guangdong, China
| | - X Kong
- Genetics and Prenatal Diagnosis Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - K W Choy
- Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Hong Kong, SAR, China
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
- The Chinese University of Hong Kong, Baylor College of Medicine Joint Center for Medical Genetics, The Chinese University of Hong Kong, Hong Kong, SAR, China
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Wang X, Tian Z, Azad MAK, Zhang W, Blachier F, Wang Z, Kong X. Dietary supplementation with Bacillus mixture modifies the intestinal ecosystem of weaned piglets in an overall beneficial way. J Appl Microbiol 2020; 130:233-246. [PMID: 32654235 DOI: 10.1111/jam.14782] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [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: 02/29/2020] [Revised: 06/27/2020] [Accepted: 07/07/2020] [Indexed: 01/22/2023]
Abstract
AIMS This study was conducted to investigate the effects of dietary supplementation with a mixture of Bacillus, which serves as an alternative of antibiotics on the intestinal ecosystem of weaned piglets. METHODS AND RESULTS We randomly assigned 120 piglets to three groups: a control group (a basal diet), a probiotics group (a basal diet supplemented with 4 × 109 CFU per gram Bacillus licheniformis-Bacillus subtilis mixture; BLS mix), and an antibiotics group (a basal diet supplemented with 0·04 kg t-1 virginiamycin, 0·2 kg t-1 colistin and 3000 mg kg-1 zinc oxide). All groups had five replicates with eight piglets per replicate. On days 7, 21 and 42 of the trial, intestine tissue and digesta samples were collected to determine intestinal morphology, gut microbiota and bacterial metabolite composition, and the expression of genes related to the gut barrier function and inflammatory status. The results showed that the BLS mix decreased the jejunum crypt depth, while increased the ileum villus height and the jejunum and ileum villus height to crypt depth ratio. The BLS mix increased Simpson's diversity index in the gut microbiota and the relative abundances of o_Bacteroidetes and f_Ruminococcaceae, but decreased the relative abundances of Blautia and Clostridium. Dietary BLS mix supplementation also modified the concentration of several bacterial metabolites compared to the control group. In addition, BLS mix upregulated the expression level of E-cadherin in the colon and pro-inflammatory cytokines and TLR-4 in ileum and colon. Lastly, Spearman's rank-order correlation revealed a potential link between alterations in gut microbiota and health parameters of the weaned piglets. CONCLUSION These findings suggest that dietary BLS mix supplementation modifies the gut ecosystem in weaned piglets. The potential advantages of such modifications in terms of intestinal health are discussed. SIGNIFICANCE AND IMPACT OF THE STUDY Weaning is the most important transition period of piglet growth and development. This study showed that dietary supplementation of a probiotic mixture of Bacillus, an effective alternative of antibiotics, was beneficial in improving the intestinal ecosystem of weaned piglets.
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Affiliation(s)
- X Wang
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China.,College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, China
| | - Z Tian
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - M A K Azad
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - W Zhang
- Evonik Degussa (China) Co. Ltd, Beijing, China
| | - F Blachier
- AgroParisTech, Université Paris-Saclay, INRAE, UMR PNCA, Paris, France
| | - Z Wang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, China
| | - X Kong
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
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Ding H, Zhao X, Ma C, Gao Q, Yin Y, Kong X, He J. Dietary supplementation with Bacillus subtilis DSM 32315 alters the intestinal microbiota and metabolites in weaned piglets. J Appl Microbiol 2020; 130:217-232. [PMID: 32628331 DOI: 10.1111/jam.14767] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [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: 04/30/2020] [Revised: 06/14/2020] [Accepted: 06/27/2020] [Indexed: 02/06/2023]
Abstract
AIM The study was conducted to investigate the effects of dietary Bacillus subtilis (BS) DSM 32315 on the intestinal microbiota composition and metabolites of weaned pigs. METHODS AND RESULTS Sixty-four piglets were allocated to two groups (control and BS), each group including eight replicates with four piglets. Dietary BS DSM 32315 increased (P < 0·05) the abundances of jejunal Leucobacter and Cupriavidus, ileal Thermus, Coprococcus and Bifidobacterium, as well as colonic Succiniclasticum; and increased the concentrations of ileal straight-chain fatty acids, colonic propionate, branched-chain fatty acids (BCFAs), and tyramine, but decreased (P < .05) the colonic indole concentration. The ileal and colonic microbial community structure tended to cluster into two groups. LEfSe analysis identified five microbial biomarkers in jejunum and eight biomarkers in ileum in the BS group, and three biomarkers in colon in the control group. The ileal Bifidobacterium abundance was positively correlated (P < 0·05) with isovalerate concentration, while the colonic Actinobacteria and Lactobacillus abundances were negatively correlated (P < 0·05) with indole concentration. CONCLUSION These findings suggest that dietary supplementation with BS DSM 32315 could alter the diversity, composition, and metabolites of intestinal microbiota in weaned piglets. SIGNIFICANCE AND IMPACT OF THE STUDY Weaned piglets are often accompanied with impaired gastrointestinal tract and intestinal disorder affecting their growth. This study demonstrated that dietary BS DSM 32315 presented a beneficial role in gut health via regulating intestinal microbiota composition and metabolites.
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Affiliation(s)
- H Ding
- College of Animal Science and Technology, Hunan Agricultural University, Hunan Co-Innovation of Animal Production Safety, Changsha, Hunan, China.,CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - X Zhao
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - C Ma
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - Q Gao
- CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - Y Yin
- College of Animal Science and Technology, Hunan Agricultural University, Hunan Co-Innovation of Animal Production Safety, Changsha, Hunan, China.,CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - X Kong
- College of Animal Science and Technology, Hunan Agricultural University, Hunan Co-Innovation of Animal Production Safety, Changsha, Hunan, China.,CAS Key Laboratory of Agro-ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - J He
- College of Animal Science and Technology, Hunan Agricultural University, Hunan Co-Innovation of Animal Production Safety, Changsha, Hunan, China
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Kong X, MA L, LV P, Cui X, Chen R, Ji Z, Chen H, Lin J, Jiang L. FRI0196 INVOLVEMENT OF THE PULMONARY ARTERIES IN PATIENTS WITH TAKAYASU ARTERITIS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.3533] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Takayasu arteritis (TA) is a chronic, granulomatous large-vessel vasculitis. It involves the aorta and its main branches predominantly, and leads to vascular thickness, stenosis and occlusion [1]. Besides the aorta and its branches, pulmonary arteries (PAs) are involved in TA. PAs have been reported to be involved in 6.9% to 80% of TA patients from different populations [2-3].Objectives:We investigated the clinical characteristics, pulmonary parenchymal features and cardiac functions in TA patients with PA involvement by combining multiple imaging modalities (MRA, CTA, PET-CT, lung VQ scan, echocardiography and high-resolution computed tomography (HRCT)). Our aim was to elicit better understanding of TA patients with PA involvement to aid rational treatment for these patients and improve their prognosis.Methods:We enrolled 216 patients with TA from a large prospective cohort. PAI was assessed in each patient based on data from magnetic resonance angiography/computed tomography angiography. Pulmonary hypertension, cardiac function, and pulmonary parenchymal abnormalities were evaluated further in patients with PAI based on echocardiography, New York Heart Association Functional Classification and pulmonary computed tomography, respectively. These abnormalities related to PAI were followed up to evaluate treatment effects.Results:PAI was detected in 56/216 (25.93%) patients, which involved the pulmonary trunk, main PAs and small vessels in the lungs. Among patients with PAI, 28 (50%) patients were accompanied by pulmonary hypertension, which was graded as ‘severe’ in 9 (16.07%), ‘moderate’ in 10 (17.86%) and mild in 9 (16.07%). Forty (71.43%) patients had cardiac insufficiency (IV: 6, 10.71%; III: 20, 35.71%; II: 14, 25.00%). Furthermore, 21 (37.50%) patients presented with abnormal parenchymal features in the area corresponding to PAI (e.g., the mosaic sign, infarction, bronchiectasis). During follow-up, two patients died due to abrupt pulmonary thrombosis. In the remaining patients, the abnormalities mentioned above improved partially after routine treatment.Conclusion:PA involvement is very common in TA patients. Physicians should be alerted to PA involvement even if obvious pulmonary symptoms are absent because they can cause PH, cardiac insufficiency as well as pulmonary parenchymal lesions, which will worsen the prognosis.References:[1]M.L.F. Zaldivar Villon, J.A.L. de la Rocha, L.R. Espinoza. Takayasu Arteritis: Recent Developments. Curr Rheumatol Rep 2019; 21: 45.[2]N. Matsunaga, K. Hayashi, I. Sakamoto, et al. Takayasu arteritis: protean radiologic manifestations and diagnosis. Radiographics 1997; 17: 579-594.[3]M. Bicakcigil, K. Aksu, S. Kamali, et al. Takayasu’s arteritis in Turkey - clinical and angiographic features of 248 patients. Clin Exp Rheumatol 2009; 27: S59-64.Figure 1.Imaging of PA lesions in TA patientsA:Dilationof the pulmonary trunk; B: thickness of the pulmonary trunk; C: stenosis of the right main PA; D: embolism of lower PAs on both sides; E: inflammation of the pulmonary-trunk root upon PET–CT; F: absence of left PAs and stenosis of the right main PA; G–I: pulmonary MRA (G), CTA (H) and VQ scan (I) of a patient with TA. MRA shows a fine right main PA and low perfusion in the right lung (G); CTA demonstrates a fine right main PA and fewer PA branches in the right lung (H); lung VQ scan shows multiple arterial emboli in the right lung and obvious less blood supply to the right lung.Figure 2.Pulmonary lesions on HRCT.A: Themosaicsign in the left lung; B: Pulmonary infarction of the right middle lobe; C: Mild pleural effusion on the left side; D: Bronchiectasis in the right lung; E–F: Ground-glass opacity (E) in the right upper lobe of a TA patient with an embolism of the right upper pulmonary branches (F); G–I: Cavitation (G) and mass-like consolidation (H) in the patient with severe stenosis of right main pulmonary artery (I).Acknowledgments:NoneDisclosure of Interests:None declared
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Xu D, Tian X, Zeng X, Zhang F, Zhao L, Zhang S, Zhou J, Zhao JL, Kong X. FRI0224 IDENTIFICATION OF RISK AND PROGNOSTIC FACTORS FOR POLYARTERITIS NODOSA PATIENTS WITH DIGITAL GANGRENE. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.817] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Polyarteritis nodosa (PAN) is a segmental, necrotizing vascular disease that primarily impacts medium-sized muscle arteries. The estimated annual incidence of PAN is still lacking in China. Digital gangrene is an ischemic manifestation of the limb. However, the causes and the treatment methods vary from case to case, and the outcome is unpredictable. These features emphasize the need to identify measurable variables that accelerate digital gangrene development in PAN patients. However, little effort has been made to identify the clinical and laboratory factors that affect PAN patients with digital gangrene to anticipate their natural history and response to therapy.Objectives:Many patients with polyarteritis nodosa (PAN) complicated with digital gangrene have poor outcomes and related research information is limited. This study was carried out to identify the associated risk and prognostic factors.Methods:We conducted a retrospective study of 148 PAN patients admitted to Peking Union Medical College Hospital (PUMCH) from September 1986 to December 2018. The characteristics, therapeutic regimens, and outcome data for patients with and without gangrene were compared. The Kaplan–Meier method and Cox hazard regression model were used to evaluate the prognostic factors.Results:Forty-seven (31.8%) PAN patients had digital gangrene complications. The average age was 40.4±17.9 years and the average disease duration was 11 (4-27) months. The presence of digital gangrene was correlated with smoking history [odds ratio (OR), 4.27; 95% confidence interval (95% CI), 1.56-11.66] and eosinophil elevation (28.12; 10.30-76.8). Thirty-two (68.1%) gangrene patients received methylprednisolone pulse therapy and all of these patients were treated with cyclophosphamide. Nine patients suffered irreversible organ injury and two died. Disease duration ≥ 24 months and elevated serum C-reactive protein (CRP) were identified as hazardous factors for poor prognosis in patients with gangrene (P=0.003, HR=8.668, 95% CI 2.11, 35.55 andP=0.042, HR=27.062, 95% CI 1.13, 648.57, respectively).Conclusion:Smoking history and eosinophil elevation in PAN patients were more prone to digital gangrene and high serum CRP level predicted poor outcomes. PAN patients with smoking history and elevated eosinophils need to be seriously evaluated by clinicians. Furthermore, the CRP level should be efficiently controlled for good prognosis.References:[1]De Virgilio A, Greco A, Magliulo G, Gallo A, Ruoppolo G, Conte M, et al. Polyarteritis nodosa: A contemporary overview. Autoimmun Rev. 2016;15:564-70.[2]Pagnoux C, Seror R, Henegar C, Mahr A, Cohen P, Le Guern V, et al. Clinical features and outcomes in 348 patients with polyarteritis nodosa: a systematic retrospective study of patients diagnosed between 1963 and 2005 and entered into the French Vasculitis Study Group Database. Arthritis Rheum. 2010;62:616-26.[3]Xu D, You X, Wang Z, Zeng Q, Xu J, Jiang L, et al. Chinese Systemic Lupus Erythematosus Treatment and Research Group Registry VI: Effect of Cigarette Smoking on the Clinical Phenotype of Chinese Patients with Systemic Lupus Erythematosus. PLoS One. 2015;10:e0134451.Acknowledgments:NoDisclosure of Interests:Dong Xu: None declared, Xinping Tian: None declared, Xiaofeng Zeng Consultant of: MSD Pharmaceuticals, Fengchun Zhang: None declared, Lin Zhao: None declared, Shangzhu Zhang: None declared, Jiaxin Zhou: None declared, Jiu-liang Zhao: None declared, Xiaodan Kong: None declared
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Zhao R, Chen J, Wang Y, Li Y, Kong X, Han Y. Proteolytic activity of Vibrio harveyi YeaZ is related with resuscitation on the viable but non-culturable state. Lett Appl Microbiol 2020; 71:126-133. [PMID: 32349168 DOI: 10.1111/lam.13304] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 03/27/2020] [Accepted: 04/21/2020] [Indexed: 02/06/2023]
Abstract
The YeaZ protein of Vibrio harveyi was expressed in Escherichia coli and purified. The purified recombinant protein YeaZ exhibited the protease activity. The proteolytic activities with azocasein as substrate were 39 130 U mg-1 . The mutation of the amino acid in active sites such as Asp88 , Ser185 and Trp169 was performed. The enzyme activities of the purified mutant proteins with Asp88 -Ala, Ser185 -Leu and Trp169 -Glu were decreased to 24·28, 35·27 and 41·66%, respectively. The mutant protein with two amino acid residues (Asp88 -Ala/Ser185 -Leu) lost the protease activity completely. Addition of the purified recombinant YeaZ increased resuscitation of the viable but non-culturable state (VBNC) cells to culturable state, and the culturable cell count increased from 1·35 × 102 to 3·10 × 106 CFU per ml. While addition of the mutant YeaZ without protease activities did not show obvious promoting effect on resuscitation of VBNC cells. Moreover, the purified YeaZ also showed lower muralytic activity, and the activities of proteins with single amino acids mutation (Thr71 and Asp112 ) were reduced from 7·05 to 4·75 and 2·50 U mg-1 , the resuscitation-promoting effect on VBNC cells was not affected by these mutant proteins. These results implied that resuscitation-promoting effect of YeaZ on VBNC cell was partly related to its protease activities, but not with the muralytic activity. SIGNIFICANCE AND IMPACT OF THE STUDY: Vibrio harveyi is a major pathogen of marine animals. The bacterium could enter into a viable but non-culturable state (VBNC) state when exposed to harsh conditions, and retains its pathogenicity after resuscitation. In this work, we analysed the enzyme activities of a resuscitation-promoting factor YeaZ and the relationship of protease activities with its promoting effect on the resuscitation of VBNC cells. The results partly revealed the promoting mechanism of the YeaZ on the bacterial resuscitation from VBNC state. The protein could be used as a new drug target and vaccine candidate.
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Affiliation(s)
- R Zhao
- School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou, China
| | - J Chen
- School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou, China
| | - Y Wang
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, China
| | - Y Li
- Chongqing Key Laboratory of Environmental Materials and Remediation Technologies, Chongqing University of Arts and Sciences, Chongqing, China
| | - X Kong
- School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou, China
| | - Y Han
- School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou, China
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Wang L, Yang SJ, Tan YZ, Luo S, Kong X, Tang CX, Lu MJ, Qi L, Zhou CS, Lu GM, Zhang LJ, Li YM. [Radiation dose and image quality of noncontrast chest CT in domestic and imported main stream manufacturers]. Zhonghua Yi Xue Za Zhi 2020; 100:1148-1153. [PMID: 32311878 DOI: 10.3760/cma.j.cn112137-20190903-01957] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the radiation dose and image quality of noncontrast chest CT and detection of ground-glass opacity pulmonary nodules (GGN) in domestic 128-slice spiral CT with the other CT scanners from three main stream manufacturers. Methods: From May 8, 2018 to October 31, 2018, noncontrast chest CT images from Neusoft 128-slice CT (75 males, 25 females, (42±16) years), dual-source 64-slice CT (53 males, 47 females, (50±16) years) and dual-source 128-slice CT scanners(69 males, 31 females, (62±17) years), Toshiba 128-slice CT (51 males, 49 females, (58±13) years) and GE 128-slice CT scanner (55 males, 45 females, (60±10) years) were collected in Eastern Theater Command and Tianjin People's Hospital. Radiation dose and image quality were evaluated.GGN detected both in Neusoft CT and dual-source CT scanners were used to analyze the displaying ability of lesions. Results: The noise in lung window of Neusoft CT ((37.8±4.9) HU) was higher than that of other mainstream CT scanners, and the noise in mediastinal window ((8.4±1.9) HU) was lower than that of GE 128-slice CT ((9.8±3.2) HU), but higher than that of dual-source CT and Toshiba 128-slice CT ((6.9±3.5)HU) (P<0.05). The absolute value of lung SNR in Neusoft CT was lower than that of other mainstream CT scanners, and the SNR in aorta (4.6±1.3) was lower than those of dual-source CT and Toshiba 128-slice CT(6.8±2.2) (P<0.05), but was not statistically significant compared with GE 128-slice CT (5.0±1.7). The mean CT value of upper lung ((-863±31) HU) at Neusoft CT was higher than 128-row dual-source CT ((-869±35) HU), and the mean CT value of aorta ((37±7) HU) was lower than that of Toshiba 128-slice CT((42±7) HU) and GE 128-slice CT ((45±9) HU) (P<0.05), while the mean CT values of the remaining lung and aorta were not statistically significant (P>0.05). The two readers had good to excellent consistency for image quality in five scanners (the highest kappa value=0.984). The delineation ability of Neusoft CT for GGN boundary was lower than that of dual-source CT (P<0.05), but had similar abilities to display the solid components, lobulation, burring, vacuoles, vascular bundle sign and pleural depression sign of GGN (all P>0.05). Radiation dose of Neusoft CT was lower than Toshiba 128-slice CT, but higher than dual-source 64-sliceCT and GE 128-slice CT scanners (P<0.05). Conclusions: With lower radiation dose than Toshiba 128-slice CT, Neusoft CT chest examination can meet the requirements of clinical diagnosis, but higher radiation dose and the lower image quality than dual-source CT and GE 128-slice CT shown in this study indicate further improvement is needed in terms of software and hardware.
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Affiliation(s)
- L Wang
- Jinling Hospital, Medical School of Nanjing University, Department of Medical Imaging, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - S J Yang
- Department of Radiology, Tianjin Union Medical Center, Tianjin 300121, China
| | - Y Z Tan
- Jinling Hospital, Medical School of Nanjing University, Department of Medical Imaging, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - S Luo
- Jinling Hospital, Medical School of Nanjing University, Department of Medical Imaging, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - X Kong
- Jinling Hospital, Medical School of Nanjing University, Department of Medical Imaging, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - C X Tang
- Jinling Hospital, Medical School of Nanjing University, Department of Medical Imaging, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - M J Lu
- Jinling Hospital, Medical School of Nanjing University, Department of Medical Imaging, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - L Qi
- Jinling Hospital, Medical School of Nanjing University, Department of Medical Imaging, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - C S Zhou
- Jinling Hospital, Medical School of Nanjing University, Department of Medical Imaging, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - G M Lu
- Jinling Hospital, Medical School of Nanjing University, Department of Medical Imaging, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - L J Zhang
- Jinling Hospital, Medical School of Nanjing University, Department of Medical Imaging, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - Y M Li
- Department of Radiology, Tianjin Union Medical Center, Tianjin 300121, China
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Peng X, Yang C, Kong X, Xiang Y, Dai W, Quan H. Multifunctional nanocomposites MGO/FU-MI inhibit the proliferation of tumor cells and enhance the effect of chemoradiotherapy in vivo and in vitro. Clin Transl Oncol 2020; 22:1875-1884. [PMID: 32170638 DOI: 10.1007/s12094-020-02331-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 02/25/2020] [Indexed: 12/21/2022]
Abstract
PURPOSE The limitation of surgery, radiotherapy and chemotherapy in the treatment of cancer and the rise of the application of nanomaterials in the field of biomedicine have promoted the application of various nanomaterials in the combination of radiotherapy and chemotherapy in the treatment of cancer. To improve the efficiency of cancer treatment, the multifunctional nanocomposites MGO/FU-MI (MGO/FU-MI NCs) were used for combination chemotherapy and radiotherapy to verify its effectiveness in treating tumors. METHODS The proliferation activity of MGO/FU-MI NCs on MC-38 and B16 cells was detected by CCK-8, and the level of apoptosis and reactive oxygen species were detected by flow cytometry. To verify its efficacy in the combination of chemoradiotherapy, different treatment regimens were developed for several groups of tumor-bearing mice. RESULTS The MGO/FU-MI NCs can induce apoptosis, stimulate ROS production, and inhibit cell proliferation. In vivo experiments, when MGO/FU-MI NCs are used alone for chemotherapy, have a certain therapeutic effect on mouse tumors. When MGO/FU-MI NCs are combined with radiation, the tumor volume can be significantly reduced and the survival time of mice is significantly prolonged. CONCLUSION The MGO/FU-MI NCs are very effective in the treatment of tumors when combined with radiotherapy and chemotherapy, and have the potential to be a combination of radiotherapy and chemotherapy.
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Affiliation(s)
- X Peng
- Key Laboratory of Artificial Micro-Structures of the Ministry of Education and Center for Electronic Microscopy and Department of Physics, Wuhan University, Wuhan, Hubei, China
| | - C Yang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - X Kong
- Key Laboratory of Artificial Micro-Structures of the Ministry of Education and Center for Electronic Microscopy and Department of Physics, Wuhan University, Wuhan, Hubei, China
| | - Y Xiang
- Key Laboratory of Artificial Micro-Structures of the Ministry of Education and Center for Electronic Microscopy and Department of Physics, Wuhan University, Wuhan, Hubei, China
| | - W Dai
- Key Laboratory of Artificial Micro-Structures of the Ministry of Education and Center for Electronic Microscopy and Department of Physics, Wuhan University, Wuhan, Hubei, China
| | - H Quan
- Key Laboratory of Artificial Micro-Structures of the Ministry of Education and Center for Electronic Microscopy and Department of Physics, Wuhan University, Wuhan, Hubei, China.
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Zheng Y, Luo L, Gao Z, Liu Y, Chen Q, Kong X, Yang Y. Grafting induces flowering time and tuber formation changes in Brassica species involving FT signalling. Plant Biol (Stuttg) 2019; 21:1031-1038. [PMID: 31267637 DOI: 10.1111/plb.13024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 06/26/2019] [Indexed: 06/09/2023]
Abstract
Brassica species are widely cultivated and important biennial and annual crops. The transition from vegetative to reproductive development in Brassica species is critical in agriculture and horticulture. Grafting is a useful tool for improving agricultural production and investigating the movement of long-range signals. Here we established a hypocotyl micrografting system in B. rapa crops and successfully grafted the rootstock of turnip onto many different scion genotypes. Grafting with turnip rootstock prolonged vegetative growth, delayed flowering and improved seed yield in rapeseed. The late-flowering turnip rootstock could delay flowering of the scion of the early-flowering turnip accession. The BrrFLC1 (FLOWERING LOCUS C1 in B. rapa) transcript levels and H3K4me3 levels at the BrrFLC1 locus were up-regulated and subsequently suppressed the downstream FT (FLOWERING LOCUS T) signals in leaves of the scion to delay flowering. Vernalization treatment can efficiently promote flowering time in turnip. The non-vernalised turnip flowered early after grafting onto the rootstock of the vernalised turnip, which was accompanied by high levels of FT homologue expression in leaves of the scion. Hypocotyl excision experiments revealed that the process of tuber formation was suppressed by removing the hypocotyl tissue, which in turn repressed the expression of tuberization-related genes. Our findings suggest that the rootstock generates mobile signals that are transported from the rootstock to the scion to fine-tune FT signalling and modulate flowering time.
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Affiliation(s)
- Y Zheng
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- University of Chinese Academy of Sciences, Beijing, China
| | - L Luo
- School of Ecology and Environmental Science, Yunnan University, Kunming, China
| | - Z Gao
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Y Liu
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Q Chen
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - X Kong
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
| | - Y Yang
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, China
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Liu X, Kong X. Isolation, identification and attenuation of a pathogenic duck hepatitis virus type 1 in China, and complete genomic sequence comparison between the embryo-passaged, attenuated derivatives and their parent. Pol J Vet Sci 2019; 22:163-171. [PMID: 30997771 DOI: 10.24425/pjvs.2018.125614] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Duck viral hepatitis (DVH) is an acute and fatal disease of young ducklings characterized by rapid transmission and damages. The most important agent of DVH is duck hepatitis virus 1 (DHV-1). The effective control of DVH was achieved by active immunization of 1-day-old duck- lings with an attenuated DHV-1 virus vaccine. However, the attenuated virus might reverse to virulence. In this study, a DHV-1 strain, Du/CH/LBJ/090809, was identified and its genomic se- quences were determined. The genome of Du/CH/LBJ/090809 is composed of 7,692 nt excluding poly A and the virus was clustered into genotype A by comparing with other referenced DHV-1 strains. Du/CH/LBJ/090809 could lead to 30% mortality of 10-day-old specific pathogen free (SPF) ducklings. The virus was passaged serially in SPF chicken embryonated eggs and three vi- ruses, passage 16 (P16), P29 and P40, were selected for genomic analysis. P29 and P40 were used to evaluate the attenuation in duckling by inoculating the virus to 10-day-old SPF ducklings. Re- sults of vaccination-challenge assay showed that the inactivated virus P40 could evoke protection against the pathogenic parent virus. Nucleotide and amino acid sequences of the genomes of Du/ CH/LBJ/090809, P16, P29 and P40 were compared. Changes both in nucleotides and amino acids, which might be contributed to the decreasing in virulence by chicken embryo-passaging of DHV- 1, were observed. We speculated that these changes might be important in the adaption and at- tenuation of the virulent virus. Additionally, strains obtained in this study will provide potential candidate in the development of vaccines against DHV-1.
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Affiliation(s)
- X Liu
- College of Life Science, Huaibei Normal University, Dongshan Road 100, Huaibei City 235000, PR China.,Division of Avian Infectious Diseases, Harbin Veterinary Research Institute, the Chinese Academy of Agricultural Sciences, Haping Road 678, Harbin 150001, PR China
| | - X Kong
- Division of Avian Infectious Diseases, Harbin Veterinary Research Institute, the Chinese Academy of Agricultural Sciences, Haping Road 678, Harbin 150001, PR China
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Zhang W, Ma C, Xie P, Zhu Q, Wang X, Yin Y, Kong X. Gut microbiota of newborn piglets with intrauterine growth restriction have lower diversity and different taxonomic abundances. J Appl Microbiol 2019; 127:354-369. [PMID: 31077497 PMCID: PMC6916403 DOI: 10.1111/jam.14304] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [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: 03/19/2019] [Revised: 04/07/2019] [Accepted: 04/10/2019] [Indexed: 12/26/2022]
Abstract
Aim Intrauterine growth retardation (IUGR) is a prevalent problem in mammals. The present study was conducted to unveil the alterations in intestinal microbiota in IUGR piglets. Methods and Results We identified the alterations of small intestinal microbiota in IUGR piglets on 7, 21 and 28 days of age using 16S rRNA sequencing. The results showed that IUGR piglets had a decreased alpha diversity of jejunum microbiota at 7 and 21 days of age; had lower abundances of Bacteroidetes and Bacteroides in the jejunum at 7, 21 and 28 days of age, Oscillibacter in the jejunum at 21 days of age, and Firmicutes in the ileum at 21 days of age; whereas they had higher abundances of Proteobacteria and Pasteurella in the ileum at 21 days of age and Escherichia–Shigella in the jejunum at 28 days of age. Correlation analysis showed that Bacteroides, Oscillibacter and Ruminococcaceae_UCG‐002 compositions were positively associated with the body weight (BW) of IUGR piglets, nevertheless Proteobacteria and Escherichia–Shigella relative abundances were negatively correlated with the BW of IUGR piglets. Gene function prediction analysis indicated that microbiota‐associated carbohydrate metabolism, lipid metabolism, glycan biosynthesis and metabolism, amino acid metabolism, and xenobiotics biodegradation and metabolism were downregulated in the IUGR piglets compared to control piglets. Conclusions The present study profiled the intestinal microbiota of newborn piglets with IUGR and the newborn IUGR piglets have lower diversity and different taxonomic abundances. Alterations in the abundances of Bacteroidetes, Bacteroides, Proteobacteria Escherichia–Shigella and Pasteurella may be involved in nutrient digestion and absorption, as well as the potential mechanisms connecting to the growth and development of IUGR in mammals. Significance and Impact of the Study The small intestinal microbiota were highly shaped in the IUGR piglets, which might further mediate the growth and development of IUGR piglets; and the gut microbiota could serve as a potential target for IUGR treatment.
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Affiliation(s)
- W Zhang
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China.,University of Chinese Academy of Sciences, Beijing, China
| | - C Ma
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China.,University of Chinese Academy of Sciences, Beijing, China
| | - P Xie
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - Q Zhu
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China.,University of Chinese Academy of Sciences, Beijing, China
| | - X Wang
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - Y Yin
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China
| | - X Kong
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan, China.,Research Center of Mini-Pig, Huanjiang Observation and Research Station for Karst Ecosystems, Chinese Academy of Sciences, Huanjiang, China
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Shen W, Feng J, Liu Z, Diao D, Liu CH, Kong X. Identification of the membrane-spanning domain of glycoprotein 45 in bovine immunodeficiency virus. Acta Virol 2019; 62:294-303. [PMID: 30160145 DOI: 10.4149/av_2018_223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The membrane-spanning domain (MSD) of the transmembrane subunit (TM) anchors the envelope glycoprotein (Env) on the lipid bilayer of the host cell membrane and virions. Its functions include membrane fusion efficiency and intracellular trafficking of the lentivirus envelope protein. Our study aimed to determine the MSD of bovine immunodeficiency virus (BIV) glycoprotein 45 (gp45) and reveal structural characteristics of the BIV Env protein. We have predicted the region of the BIV MSD and obtained the sequence using bioinformatics software. Various kinds of assays, including analogy analysis, fluorescence microscopy, and dye-transfer-based assays, were carried out to validate the prediction. The results, for the first time, show that the BIV MSD is located at the D170 to M191 amino acids of gp45, and the identified MSD divides gp45 into the extracellular domain (ED), MSD and cytoplasmic domain (CT). We further found that the BIV MSD had a similar structure and function as the HIV MSD using amino acid sequence alignment and fluorescence microscopy. Additionally, the dye-transfer-based assay demonstrates that deletion of the BIV MSD efficiently decreases cell-cell fusion. Based on the identification of the MSD, a "snorkeling" model, in which the flanking charged amino acid residues are buried in the lipid bilayer while their side chains interact with polar head groups, was proposed for the BIV MSD. Ultimately, we further improved the primary structure of the BIV envelope glycoprotein.
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Basak I, Bhatlekar S, Manne B, Stoller M, Hugo S, Kong X, Ma L, Rondina MT, Weyrich AS, Edelstein LC, Bray PF. miR-15a-5p regulates expression of multiple proteins in the megakaryocyte GPVI signaling pathway. J Thromb Haemost 2019; 17:511-524. [PMID: 30632265 PMCID: PMC6397079 DOI: 10.1111/jth.14382] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [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: 07/19/2018] [Indexed: 12/22/2022]
Abstract
Essentials The action of microRNAs (miRs) in human megakaryocyte signaling is largely unknown. Cord blood-derived human megakaryocytes (MKs) were used to test the function of candidate miRs. miR-15a-5p negatively regulated MK GPVI-mediated αIIbβ3 activation and α-granule release. miR-15a-5p acts as a potential "master-miR" regulating genes in the MK GPVI signaling pathway. SUMMARY: Background Megakaryocytes (MKs) invest their progeny platelets with proteins and RNAs. MicroRNAs (miRs), which inhibit mRNA translation into protein, are abundantly expressed in MKs and platelets. Although platelet miRs have been associated with platelet reactivity and disease, there is a paucity of information on the function of miRs in human MKs. Objective To identify MK miRs that regulate the GPVI signaling pathway in the MK-platelet lineage. Methods Candidate miRs associated with GPVI-mediated platelet aggregation were tested for functionality in cultured MKs derived from cord blood. Results An unbiased, transcriptome-wide screen in 154 healthy donors identified platelet miR-15a-5p as significantly negatively associated with CRP-induced platelet aggregation. Platelet agonist dose-response curves demonstrated activation of αIIbβ3 in suspensions of cord blood-derived cultured MKs. Overexpression and knockdown of miR-15a-5p in these MKs reduced and enhanced, respectively, CRP-induced αIIbβ3 activation but did not alter thrombin or ADP stimulation. FYN, SRGN, FCER1G, MYLK. and PRKCQ, genes involved in GPVI signaling, were identified as miR-15a-5p targets and were inhibited or de-repressed in MKs with miR-15a-5p overexpression or inhibition, respectively. Lentiviral overexpression of miR-15a-5p also inhibited GPVI-FcRγ-mediated phosphorylation of Syk and PLCγ2, GPVI downstream signaling molecules, but effects of miR-15a-5p on αIIbβ3 activation did not extend to other ITAM-signaling receptors (FcγRIIa and CLEC-2). Conclusion Cord blood-derived MKs are a useful human system for studying the functional effects of candidate platelet genes. miR-15a-5p is a potential "master-miR" for specifically regulating GPVI-mediated MK-platelet signaling. Targeting miR-15a-5p may have therapeutic potential in hemostasis and thrombosis.
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Affiliation(s)
- I. Basak
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112, USA; and Division of General Internal Medicine, Department of Internal Medicine, University of Utah, Salt Lake City, UT 84112, USA; and George E. Wahlen VAMC, Salt Lake City, UT, 84148
| | - S. Bhatlekar
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112, USA; and Division of General Internal Medicine, Department of Internal Medicine, University of Utah, Salt Lake City, UT 84112, USA; and George E. Wahlen VAMC, Salt Lake City, UT, 84148
| | - B.K. Manne
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112, USA; and Division of General Internal Medicine, Department of Internal Medicine, University of Utah, Salt Lake City, UT 84112, USA; and George E. Wahlen VAMC, Salt Lake City, UT, 84148
| | - M. Stoller
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112, USA; and Division of General Internal Medicine, Department of Internal Medicine, University of Utah, Salt Lake City, UT 84112, USA; and George E. Wahlen VAMC, Salt Lake City, UT, 84148
| | - S. Hugo
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112, USA; and Division of General Internal Medicine, Department of Internal Medicine, University of Utah, Salt Lake City, UT 84112, USA; and George E. Wahlen VAMC, Salt Lake City, UT, 84148
| | - X. Kong
- The Cardeza Foundation for Hematologic Research and the Department of Medicine, Thomas Jefferson University, Jefferson Medical College, Philadelphia, PA 19107
| | - L. Ma
- The Cardeza Foundation for Hematologic Research and the Department of Medicine, Thomas Jefferson University, Jefferson Medical College, Philadelphia, PA 19107
| | - M. T. Rondina
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112, USA; and Division of General Internal Medicine, Department of Internal Medicine, University of Utah, Salt Lake City, UT 84112, USA; and George E. Wahlen VAMC, Salt Lake City, UT, 84148
| | - A. S. Weyrich
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112, USA; and Division of General Internal Medicine, Department of Internal Medicine, University of Utah, Salt Lake City, UT 84112, USA; and George E. Wahlen VAMC, Salt Lake City, UT, 84148
| | - L. C. Edelstein
- The Cardeza Foundation for Hematologic Research and the Department of Medicine, Thomas Jefferson University, Jefferson Medical College, Philadelphia, PA 19107
| | - P. F. Bray
- Molecular Medicine Program, University of Utah, Salt Lake City, UT 84112, USA; and Division of General Internal Medicine, Department of Internal Medicine, University of Utah, Salt Lake City, UT 84112, USA; and George E. Wahlen VAMC, Salt Lake City, UT, 84148
- Division of Hematology and Hematologic Malignancies, University of Utah, Salt Lake City, UT 84112, USA
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Barnes GD, Kong X, Cole D, Haymart B, Kline-Rogers E, Almany S, Dahu M, Ekola M, Kaatz S, Kozlowski J, Froehlich JB. Extended International Normalized Ratio testing intervals for warfarin-treated patients. J Thromb Haemost 2018; 16:1307-1312. [PMID: 29763979 DOI: 10.1111/jth.14150] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Indexed: 12/22/2022]
Abstract
Essentials Warfarin typically requires International Normalized Ratio (INR) testing at least every 4 weeks. We implemented extended INR testing for stable warfarin patients in six anticoagulation clinics. Use of extended INR testing increased from 41.8% to 69.3% over the 3 year study. Use of extended INR testing appeared safe and effective. SUMMARY Background A previous single-center randomized trial suggested that patients with stable International Normalized Ratio (INR) values could safely receive INR testing as infrequently as every 12 weeks. Objective To test the success of implementation of an extended INR testing interval for stable warfarin patients in a practice-based, multicenter collaborative of anticoagulation clinics. Methods At six anticoagulation clinics, patients were identified as being eligible for extended INR testing on the basis of prior INR value stability and minimal warfarin dose changes between 2014 and 2016. We assessed the frequency with which anticoagulation clinic providers recommended an extended INR testing interval (> 5 weeks) to eligible patients. We also explored safety outcomes for eligible patients, including next INR values, bleeding events, and emergency department visits. Results At least one eligible period for extended INR testing was identified in 890 of 3362 (26.5%) warfarin-treated patients. Overall, the use of extended INR testing in eligible patients increased from 41.8% in the first quarter of 2014 to 69.3% in the fourth quarter of 2016. The number of subsequent out-of-range next INR values were similar between eligible patients who did and did not have an extended INR testing interval (27.3% versus 28.4%, respectively). The numbers of major bleeding events were not different between the two groups, but rates of clinically relevant non-major bleeding (0.02 per 100 patient-years versus 0.09 per 100 patient-years) and emergency department visits (0.07 per 100 patient-years versus 0.19 per 100 patient-years) were lower for eligible patients with extended INR testing intervals than for those with non-extended INR testing intervals. Conclusions Extended INR testing for stable warfarin patients can be successfully and safely implemented in diverse, practice-based anticoagulation clinic settings.
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Affiliation(s)
- G D Barnes
- Frankel Cardiovascular Center, University of Michigan, Ann Arbor, MI, USA
| | - X Kong
- Frankel Cardiovascular Center, University of Michigan, Ann Arbor, MI, USA
| | - D Cole
- Wayne State University School of Medicine, Detroit, MI, USA
| | - B Haymart
- Frankel Cardiovascular Center, University of Michigan, Ann Arbor, MI, USA
| | - E Kline-Rogers
- Frankel Cardiovascular Center, University of Michigan, Ann Arbor, MI, USA
| | - S Almany
- William Beaumont Hospital, Royal Oak, MI, USA
| | - M Dahu
- Spectrum Health System, Grand Rapids, MI, USA
| | - M Ekola
- Memorial Health System, Owosso, MI, USA
| | - S Kaatz
- Henry Ford Hospital, Detroit, MI, USA
| | - J Kozlowski
- Detroit Medical Center, Commerce Township, MI, USA
| | - J B Froehlich
- Frankel Cardiovascular Center, University of Michigan, Ann Arbor, MI, USA
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Qi L, Fan W, Xia X, Yao L, Liu L, Zhao H, Kong X, Liu J. Nosocomial outbreak of Candida parapsilosis sensu stricto fungaemia in a neonatal intensive care unit in China. J Hosp Infect 2018; 100:e246-e252. [PMID: 29928941 DOI: 10.1016/j.jhin.2018.06.009] [Citation(s) in RCA: 21] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 06/11/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND Candida parapsilosis is a common agent of fungaemia, but few outbreaks of Candida parapsilosis infection have been reported in China. AIM To elaborate an outbreak of nosocomial Candida parapsilosis sensu stricto fungaemia in a neonatal intensive care unit (NICU) of a comprehensive hospital in China from July to October 2017. METHODS Epidemics and characteristics of fungaemia cases were investigated. Surveillance samples were collected. Vitek 2 Compact System, internal transcribed spacer sequencing, and random amplified polymorphic DNA (RAPD) typing were conducted to identify the isolates. Antifungal susceptibility test was performed for all bloodstream isolates. FINDINGS Sixteen neonates were diagnosed as Candida parapsilosis sensu stricto fungaemia during this period. Presenting symptoms included leucopenia, thrombocytopenia, and respiratory crackles. Fifteen cases were cured whereas one case who suffered from severe concomitant diseases died. The isolates were susceptible to fluconazole, amphotericin B, itraconazole, voriconazole, and 5-fluorocytosine. A total of 313 surveillance samples were collected, and Candida parapsilosis sensu stricto was identified from 16 environmental samples and one sample from an ultrasonographer's hand. The colonized locations included wiping cloths, faucets, sinks, operating table, puddles in the bathroom, a ventilator, and an ultrasonic probe. The RAPD patterns of all the Candida parapsilosis sensu stricto isolates from bloodstream and surveillance samples were identical. The outbreak was controlled after a series of infection control measures. CONCLUSION Contaminated environment was associated with this outbreak. Close attention to immunocompromised patients, thorough environmental disinfection and hand hygiene should be strengthened in NICU.
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Affiliation(s)
- L Qi
- Department of Laboratory, Army General Hospital, PLA, Beijing, China
| | - W Fan
- Department of Laboratory, Army General Hospital, PLA, Beijing, China
| | - X Xia
- Department of Infection Control, Army General Hospital, PLA, Beijing, China
| | - L Yao
- Department of Laboratory, Army General Hospital, PLA, Beijing, China
| | - L Liu
- Department of Laboratory, Army General Hospital, PLA, Beijing, China
| | - H Zhao
- Department of Laboratory, Army General Hospital, PLA, Beijing, China
| | - X Kong
- Department of Extremely Preterm Neonatal Intensive Care Unit, Army General Hospital, PLA, Beijing, China
| | - J Liu
- Department of Laboratory, Army General Hospital, PLA, Beijing, China.
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Wu Q, Wang C, Shi H, Mei S, Liu L, Xin Y, Kong X. Identification of 4 novel mutations of androgen receptor gene in 8 Chinese families with complete androgen insensitivity syndrome. Clin Genet 2018; 94:269-270. [PMID: 29693241 DOI: 10.1111/cge.13248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 02/26/2018] [Accepted: 03/03/2018] [Indexed: 11/29/2022]
Affiliation(s)
- Q Wu
- Center of Genetics and Prenatal Diagnosis, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - C Wang
- Center of Genetics and Prenatal Diagnosis, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - H Shi
- Center of Genetics and Prenatal Diagnosis, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - S Mei
- Center of Genetics and Prenatal Diagnosis, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - L Liu
- Department of Rheumatology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Y Xin
- Department of Obstetrics and Gynecology, The Zhengzhou Central Hospital of Zhengzhou University, Zhengzhou, China
| | - X Kong
- Center of Genetics and Prenatal Diagnosis, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Qiu T, Kong X. Injury Detection for Central Nervous System via EEG with Higher Order Crossing-based Methods. Methods Inf Med 2018. [DOI: 10.1055/s-0038-1634270] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Abstract:Higher order crossing (HOC) is a powerful tool for time series analysis. Two HOC-based EEG analysis methods are developed for brain injury detection and quantification. The first method explores EEG spectrum characteristics via an estimate of the dominant frequency of a pre-processed EEG signal. The second method is based on the norm of the AHOC, an HOC obtained from the -filter prefiltered EEG signal. Both methods are shown to be effective in detecting hypoxic/asphyxic injuries as well as assessing the severity of the injury.
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Abstract
Urinary bladder cancer is the second commonly diagnosed genitourinary malignancy. Previously, bio-molecular alterations have been observed within certain locations such as chromosome 9, retinoblastoma gene and fibroblast growth factor receptor-3. Solute carrier family 14 member 1 (SLC14A1) gene encodes the type-B urea transporter (UT-B) which facilitates the passive movement of urea across cell membrane, and has recently been related with human malignancies, especially for bladder cancer. Herein, we discussed the SLC14A1 gene and UT-B protein properties, aiming to elucidate the expression behavior of SLC14A1 in human bladder cancer. Furthermore, by reviewing some well-established theories regarding the carcinogenesis of bladder cancer, including several genome wide association researches, we have bridged the mechanisms of cancer development with the aberrant expression of SLC14A1. In conclusion, the altered expression of SLC14A1 gene in human urothelial cancer may implicate its significance as a novel target for research.
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Affiliation(s)
- R Hou
- Department of Urology, China Japan Union Hospital, Jilin University, Changchun, 130033, Jilin, China
| | - X Kong
- Department of Urology, China Japan Union Hospital, Jilin University, Changchun, 130033, Jilin, China
| | - B Yang
- Department of Pharmacology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Y Xie
- Renal Division, Department of Medicine, Emory University School of Medicine, Atlanta, GA, 30322, USA
- Xiangya School of Medicine, Central South University, Changsha, 410008, Hunan, China
| | - G Chen
- Renal Division, Department of Medicine, Emory University School of Medicine, Atlanta, GA, 30322, USA.
- Department of Physiology, Emory University School of Medicine, Whitehead Research Building Room 615, 615 Michael Street, Atlanta, GA, 30322, USA.
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Chen S, Kong X, Wei X, Sun Y, Yin D, Zhang Q, Du L, Man J, Mao L, Li H, Tu Y, Yang Y. Targeted next-generation sequencing identifies nine novel filaggrin gene variants in Chinese Han patients with ichthyosis vulgaris. Br J Dermatol 2017; 177:e202-e203. [PMID: 28407221 DOI: 10.1111/bjd.15588] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- S Chen
- Department of Dermatology, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - X Kong
- Prenatal Diagnosis Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - X Wei
- BGI-Wuhan, Wuhan, 430075, China.,BGI-Shenzhen, Shenzhen, 518083, China
| | - Y Sun
- BGI-Wuhan, Wuhan, 430075, China.,BGI-Shenzhen, Shenzhen, 518083, China.,Department of Biology, University of Copenhagen, Copenhagen, Denmark
| | - D Yin
- BGI-Wuhan, Wuhan, 430075, China.,BGI-Shenzhen, Shenzhen, 518083, China
| | - Q Zhang
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - L Du
- BGI-Wuhan, Wuhan, 430075, China.,BGI-Shenzhen, Shenzhen, 518083, China
| | - J Man
- BGI-Wuhan, Wuhan, 430075, China.,BGI-Shenzhen, Shenzhen, 518083, China
| | - L Mao
- BGI-Wuhan, Wuhan, 430075, China.,BGI-Shenzhen, Shenzhen, 518083, China.,College of Life Sciences, Hubei University, Wuhan, 430062, China
| | - H Li
- Center of Prenatal Diagnosis, Changsha Maternal and Child Health Hospital, Changsha, China
| | - Y Tu
- Department of Dermatology, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Y Yang
- BGI-Wuhan, Wuhan, 430075, China.,BGI-Shenzhen, Shenzhen, 518083, China.,Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
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Abstract
Rheumatoid arthritis (RA) is an autoimmune disease with progressive joint disorder. The complex interplay of genetic and environmental influences is important for the development of the disease. A growing body of evidence has shed light on the association of dysbiosis of gut microbiota with RA. Certain gut microbial strains have been shown to inhibit or attenuate immune responses in RA experimental models, suggesting that specific species among intestinal commensal bacteria may play either a pathogenic or a protective role in the development of RA. Oral intake of probiotics/prebiotics can therefore represent a therapeutic approach for RA treatment. However, the relevant scientific work has only just begun, and the available data in this field remain limited. Fortunately, utilization of new sequencing technologies allows expanded research on the association of intestinal bacterial flora and human diseases to be attempted. In this review, we summarize the role of gut microbiota in RA progression and address how specific bacterial strains regulate the immune response in disease process. Probiotics/prebiotics in the treatment of RA is also discussed.
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Affiliation(s)
- Y Kang
- Medical Faculty, Kunming University of Science and Technology, 650500, Kunming, Yunnan, China
| | - Y Cai
- Medical Faculty, Kunming University of Science and Technology, 650500, Kunming, Yunnan, China
| | - X Zhang
- Medical Faculty, Kunming University of Science and Technology, 650500, Kunming, Yunnan, China
| | - X Kong
- Medical Faculty, Kunming University of Science and Technology, 650500, Kunming, Yunnan, China
| | - J Su
- Medical Faculty, Kunming University of Science and Technology, 650500, Kunming, Yunnan, China.
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Deng L, Kong X, Liu G, Li C, Chen H, Hong Z, Liu J, Xia J. Transplantation of Adipose-Derived Mesenchymal Stem Cells Efficiently Rescues Thioacetamide-Induced Acute Liver Failure in Mice. Transplant Proc 2017; 48:2208-15. [PMID: 27569972 DOI: 10.1016/j.transproceed.2016.02.077] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Accepted: 02/17/2016] [Indexed: 01/05/2023]
Abstract
BACKGROUND We aimed to investigate the efficacy of adipose-derived mesenchymal stem cell (ADMSC) transplantation in acute liver failure caused by thioacetamide in mice as well as its underlying mechanism by comparing transplantation routes. METHODS ADMSCs were isolated from inguinal fat pads of enhanced green fluorescent protein (EGFP) transgenic mice and analyzed regarding their surface markers and differentiation potential. Acute liver failure models were established by infusion of thioacetamide, and then we injected EGFP-ADMSCs or phosphate-buffered saline solution by intrasplenic or intravenous route. The restoration of biologic functions of the livers receiving transplantation was assessed by means of a variety of approaches, such as survival rates, live function parameters, histology, localization of EGFP-ADMSCs, and immunofluorescence analysis. RESULTS ADMSCs were positive for CD90 and CD44 and negative for CD34 and had adipogenic and osteogenic differentiation potential. And they prevented the release of liver injury biomarkers. Transplantation via tail vein provided a significant survival benefit, but no significant differences were observed in the intrasplenic pathway and between the 2 pathways in our animal experiments. Furthermore, the transplanted cells were well integrated into injured livers and produced albumin and cytokeratin-8. CONCLUSIONS Direct transplantation of ADMSCs is an effective treatment for acute liver failure rather than intrasplenic transplantation. The transplanted ADMSCs exhibit the potential to differentiate into hepatocyte-like cells in the injured livers. Thus, ADCMSCs would be a potential option for treatment of acute liver failure.
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Affiliation(s)
- L Deng
- Center of Infectious Diseases, Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, People's Republic of China.
| | - X Kong
- Center of Infectious Diseases, 458th Hospital of PLA, Guangzhou, People's Republic of China
| | - G Liu
- Center of Infectious Diseases, 458th Hospital of PLA, Guangzhou, People's Republic of China
| | - C Li
- Center of Infectious Diseases, Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, People's Republic of China
| | - H Chen
- Center of Infectious Diseases, Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, People's Republic of China
| | - Z Hong
- Center of Infectious Diseases, Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, People's Republic of China
| | - J Liu
- Center of Infectious Diseases, Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, People's Republic of China
| | - J Xia
- Center of Infectious Diseases, Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, People's Republic of China
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Kong X, Ding LJ, Wang ZX. Mucin expression profile of benign and malignant cervical tissues and correlation with clinical-pathologic parameters. EUR J GYNAECOL ONCOL 2017; 38:350-355. [PMID: 29693871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
PURPOSE To detect the expression of mucins in diverse benign and malignant cervical tissues of cervical disease. MATERIALS AND METHODS 158 cases of cervical tissues were collected. Sections were stained with monoclonal antibodies against MUC1, MUC2, MIUC4, MUC5AC, and MUC20 by immunohistochemistry. RESULTS Normal cervical epithelium showed high expr ession of MUC1I, MUC4, and MUC5AC, partial expression of MUC20, and no MUC2. With the development from chronic cervicitis, cervical intraepithelial neoplasia (CI7N) to cervical squamous cell carcinoma (SCC), the expression of MUC1, NMUC4, and MUC20 was statistically significant. The expression of MUCl was related with the depth of invasion and clinical stage of SCC. The positive rates of MUC4 and MUC20 were associated with the degree of differentiation and clinical stage of SCC. There was a correlation between the expression of MUC4, MUC 1, and MUC20 in cervical squamous lesions. CONCLUSION Mucins may be involved in the development of cervical cancer.
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43
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Kong X, Chen X. Laparoscopic Intrastromal Hysterectomy: A Novel Nerve-Sparing Approach. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kong X, Xing X, Hong J, Zhang X, Yang W. Association of a type 2 diabetes genetic risk score with insulin secretion modulated by insulin sensitivity among Chinese Hans. Clin Genet 2016; 91:832-842. [PMID: 27280334 DOI: 10.1111/cge.12817] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [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: 03/06/2016] [Revised: 06/02/2016] [Accepted: 06/03/2016] [Indexed: 01/03/2023]
Abstract
Type 2 diabetes (T2D) is characterized by insulin resistance and impaired insulin secretion. The present study aimed to identify the influence of insulin sensitivity on the genetic risk of impaired insulin secretion among a Chinese Han population. For 3229 controls and 1994 treatment-naïve T2D, single nucleotide polymorphisms (SNPs) from 24 T2D-related genomic loci were genotyped and a genetic risk score (GRS) was constructed. Results showed that GRS was associated with insulin secretion and disposition indices in both controls and treatment-naïve T2Ds. Upon stratifying the participants into tertiles by the Matsuda index, we observed an inhibitory relationship between the GRS and insulin secretion in low insulin sensitive but not in high insulin sensitive controls and treatment-naïve T2Ds. Moreover, low insulin sensitive individuals exhibited more severe impairment in insulin secretion and beta cell response to insulin sensitivity with an increase in risk alleles. Our findings identified that the association of GRS with insulin secretion was strongly modulated by insulin sensitivity in both controls and T2Ds of Chinese Han. It indicates that insulin sensitization should be emphasized in prevention and treatment of T2D for beta cell protection.
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Affiliation(s)
- X Kong
- Department of Endocrinology, China-Japan Friendship Hospital, Beijing, China
| | - X Xing
- Department of Endocrinology, China-Japan Friendship Hospital, Beijing, China
| | - J Hong
- Department of Endocrinology, China-Japan Friendship Hospital, Beijing, China
| | - X Zhang
- Department of Endocrinology, China-Japan Friendship Hospital, Beijing, China
| | - W Yang
- Department of Endocrinology, China-Japan Friendship Hospital, Beijing, China
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Wang RT, Liu HT, Zhao YL, Li N, Liu T, Kong X, Yu KJ. Bone mineral density is associated with left ventricular diastolic function in men with type 2 diabetes. Diabetes Metab 2016; 42:256-62. [PMID: 26971836 DOI: 10.1016/j.diabet.2016.02.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 02/04/2016] [Accepted: 02/15/2016] [Indexed: 01/03/2023]
Abstract
AIMS Type 2 diabetes (T2DM) is associated with chronic heart failure and cardiomyopathy. Furthermore, low bone mineral density (BMD) predicts incident heart failure. Abnormal diastolic function reflects early changes in cardiac function and plays a key role in the development of heart failure. The purpose of this study was to investigate the association between BMD with left ventricular (LV) diastolic function in men with T2DM. METHODS In all, 344 men with T2DM and 331 age-matched control subjects were enrolled. BMD measurements were performed. LV diastolic function and structure were assessed by echocardiographic evaluation. RESULTS BMD was lower in men with T2DM than in controls. There were significant differences in the level of parameters reflecting cardiac structure and LV diastolic function between two groups. Moreover, LV diastolic function and structure parameters also showed significant differences as BMD reduced in T2DM group. BMD at femoral neck was correlated with LV diastolic function parameters in T2DM after adjusting for confounding factors. Multivariable logistic analysis revealed that osteopenia and osteoporosis were associated with diastolic dysfunction compared to the control in men with T2DM. However, no association between BMD and LV diastolic function was found in subjects without T2DM. CONCLUSION Osteoporosis may be an independent factor for LV diastolic dysfunction in men with T2DM. Our data suggested that early detection of abnormal BMD should warrant for early search of undetected LV diastolic dysfunction in diabetic men.
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Affiliation(s)
- R-T Wang
- Department of Intensive Care Unit, Harbin Medical University, the Third Affiliated Hospital, Harbin, Heilongjiang, China
| | - H-T Liu
- Department of Intensive Care Unit, Harbin Medical University, the Third Affiliated Hospital, Harbin, Heilongjiang, China
| | - Y-L Zhao
- Harbin Medical University (Da Qing), Harbin, Heilongjiang, China
| | - N Li
- Department of Cardiology, Harbin Medical University, the Second Affiliated Hospital, Harbin, Heilongjiang, China
| | - T Liu
- Division of Hypothalamic Research, UT Southwestern Medical Center, Department of Internal Medicine, 75390 Dallas, TX, USA
| | - X Kong
- Division of Endocrinology, Beth Israel Deaconess Medical Center, Harvard Medical School, 02215 Boston, MA, USA
| | - K-J Yu
- Department of Intensive Care Unit, Harbin Medical University, the Third Affiliated Hospital, Harbin, Heilongjiang, China.
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Inacio R, Barlow D, Kong X, Keeble J, Jones SA. Investigating how the attributes of self-associated drug complexes influence the passive transport of molecules through biological membranes. Eur J Pharm Biopharm 2016; 102:214-22. [PMID: 26965142 PMCID: PMC4827376 DOI: 10.1016/j.ejpb.2016.03.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Revised: 02/15/2016] [Accepted: 03/02/2016] [Indexed: 11/12/2022]
Abstract
Relatively little is known about how drug self-association influences absorption into the human body. This study presented two hydrophobic membranes with a series of solutions containing different types of tetracaine aggregates with the aim of understanding how the attributes of supramolecular aggregate formation influenced passive membrane transport. The data showed that aqueous solutions of the unprotonated form of tetracaine displayed a significantly higher (p < 0.05) passive membrane transport compared to solutions with mixtures of the unprotonated and protonated drug microspecies (e.g. transport through the skin was 0.96 ± 0.31 μg cm−2 min−1 and 1.59 ± 0.26 μg cm−2 min−1 respectively). However, despite an enhanced rate of drug transport and a better membrane partitioning the unionised molecules showed a significantly longer (p < 0.05) lag time to membrane penetration compared solutions rich in the ionised microspecies. Analytical characterisation of the solutions applied to the apical surface of the membranes in the transport studies showed that larger tetracaine aggregates with smaller surface charge gave rise to the longer lag times. These large aggregates demonstrated more extensive intermolecular bonding and therefore, it was suggest that it was the enhanced propensity of the unionised species to form tightly bound drug aggregates that caused the delay in the membrane penetration.
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Affiliation(s)
- R Inacio
- King's College London, Faculty of Life Sciences & Medicine, Institute of Pharmaceutical Science, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - D Barlow
- King's College London, Faculty of Life Sciences & Medicine, Institute of Pharmaceutical Science, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - X Kong
- King's College London, Faculty of Life Sciences & Medicine, Institute of Pharmaceutical Science, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - J Keeble
- King's College London, Faculty of Life Sciences & Medicine, Institute of Pharmaceutical Science, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - S A Jones
- King's College London, Faculty of Life Sciences & Medicine, Institute of Pharmaceutical Science, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom.
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Li Y, Tan B, Wang J, Duan Y, Guo Q, Liu Y, Kong X, Li T, Tang Y, Yin Y. Alteration of inflammatory cytokines, energy metabolic regulators, and muscle fiber type in the skeletal muscle of postweaning piglets1. J Anim Sci 2016; 94:1064-72. [DOI: 10.2527/jas.2015-9646] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Y. Li
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central China, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 644 Yuanda Road, Furong District, Changsha, Hunan 410125, China
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100039, China
| | - B. Tan
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central China, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 644 Yuanda Road, Furong District, Changsha, Hunan 410125, China
| | - J. Wang
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central China, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 644 Yuanda Road, Furong District, Changsha, Hunan 410125, China
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100039, China
| | - Y. Duan
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central China, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 644 Yuanda Road, Furong District, Changsha, Hunan 410125, China
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100039, China
| | - Q. Guo
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central China, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 644 Yuanda Road, Furong District, Changsha, Hunan 410125, China
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100039, China
| | - Y. Liu
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central China, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 644 Yuanda Road, Furong District, Changsha, Hunan 410125, China
- College of Life Science, University of Chinese Academy of Sciences, Beijing 100039, China
| | - X. Kong
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central China, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 644 Yuanda Road, Furong District, Changsha, Hunan 410125, China
| | - T. Li
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central China, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 644 Yuanda Road, Furong District, Changsha, Hunan 410125, China
| | - Y. Tang
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central China, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 644 Yuanda Road, Furong District, Changsha, Hunan 410125, China
| | - Y. Yin
- Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central China, Ministry of Agriculture, Hunan Provincial Engineering Research Center of Healthy Livestock, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 644 Yuanda Road, Furong District, Changsha, Hunan 410125, China
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Kong X, Li H, Albert S, Bengoechea-Encabo A, Sanchez-Garcia MA, Calleja E, Draxl C, Trampert A. Titanium induced polarity inversion in ordered (In,Ga)N/GaN nanocolumns. Nanotechnology 2016; 27:065705. [PMID: 26759358 DOI: 10.1088/0957-4484/27/6/065705] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We report on the formation of polarity inversion in ordered (In,Ga)N/GaN nanocolumns grown on a Ti-masked GaN-buffered sapphire substrate by plasma assisted molecular beam epitaxy. High-resolution transmission electron microscopy and electron energy-loss spectroscopy reveal a stacking fault-like planar defect at the homoepitaxial GaN interface due to Ti incorporation, triggering the generation of N-polar domains in Ga-polar nanocolumns. Density functional theory calculations are applied to clarify the atomic configurations of a Ti monolayer occupation on the GaN (0002) plane and to prove the inversion effect. The polarity inversion leads to an enhanced indium incorporation in the subsequent (In,Ga)N segment of the nanocolumn. This study provides a deeper understanding of the effects of Ti mask in the well-controlled selective area growth of (In,Ga)N/GaN nanocolumns.
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Affiliation(s)
- X Kong
- Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, D-10117 Berlin, Germany
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Yaron JR, Gangaraju S, Rao MY, Kong X, Zhang L, Su F, Tian Y, Glenn HL, Meldrum DR. K(+) regulates Ca(2+) to drive inflammasome signaling: dynamic visualization of ion flux in live cells. Cell Death Dis 2015; 6:e1954. [PMID: 26512962 PMCID: PMC5399176 DOI: 10.1038/cddis.2015.277] [Citation(s) in RCA: 133] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 08/27/2015] [Accepted: 08/31/2015] [Indexed: 01/05/2023]
Abstract
P2X7 purinergic receptor engagement with extracellular ATP induces transmembrane potassium and calcium flux resulting in assembly of the NLRP3 inflammasome in LPS-primed macrophages. The role of potassium and calcium in inflammasome regulation is not well understood, largely due to limitations in existing methods for interrogating potassium in real time. The use of KS6, a novel sensor for selective and sensitive dynamic visualization of intracellular potassium flux in live cells, multiplexed with the intracellular calcium sensor Fluo-4, revealed a coordinated relationship between potassium and calcium. Interestingly, the mitochondrial potassium pool was mobilized in a P2X7 signaling, and ATP dose-dependent manner, suggesting a role for mitochondrial sensing of cytosolic ion perturbation. Through treatment with extracellular potassium we found that potassium efflux was necessary to permit sustained calcium entry, but not transient calcium flux from intracellular stores. Further, intracellular calcium chelation with BAPTA-AM indicated that P2X7-induced potassium depletion was independent of calcium mobilization. This evidence suggests that both potassium efflux and calcium influx are necessary for mitochondrial reactive oxygen generation upstream of NLRP3 inflammasome assembly and pyroptotic cell death. We propose a model wherein potassium efflux is necessary for calcium influx, resulting in mitochondrial reactive oxygen generation to trigger the NLRP3 inflammasome.
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Affiliation(s)
- J R Yaron
- Center for Biosignatures Discovery Automation, The Biodesign Institute, Arizona State University, Tempe, 85287 AZ, USA.,Biological Design Graduate Program, School of Biological and Health Systems Engineering, Ira A. Fulton Schools of Engineering, Arizona State University, Tempe, 85287 AZ, USA
| | - S Gangaraju
- Center for Biosignatures Discovery Automation, The Biodesign Institute, Arizona State University, Tempe, 85287 AZ, USA
| | - M Y Rao
- Center for Biosignatures Discovery Automation, The Biodesign Institute, Arizona State University, Tempe, 85287 AZ, USA
| | - X Kong
- Center for Biosignatures Discovery Automation, The Biodesign Institute, Arizona State University, Tempe, 85287 AZ, USA
| | - L Zhang
- Center for Biosignatures Discovery Automation, The Biodesign Institute, Arizona State University, Tempe, 85287 AZ, USA
| | - F Su
- Center for Biosignatures Discovery Automation, The Biodesign Institute, Arizona State University, Tempe, 85287 AZ, USA
| | - Y Tian
- Center for Biosignatures Discovery Automation, The Biodesign Institute, Arizona State University, Tempe, 85287 AZ, USA
| | - H L Glenn
- Center for Biosignatures Discovery Automation, The Biodesign Institute, Arizona State University, Tempe, 85287 AZ, USA
| | - D R Meldrum
- Center for Biosignatures Discovery Automation, The Biodesign Institute, Arizona State University, Tempe, 85287 AZ, USA
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