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Meng Z, Wu K, Pei X, Gu Y, Li L, He D. 12P In vitro and in vivo investigations of anlotinib in bladder cancer treatment. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.040] [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: 11/01/2022] Open
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Cai W, Miao J, Wen J, Gu Y, Zhao X, Xue Z. 48P Tertiary lymphoid structure predicts major pathological response in resectable non-small cell lung cancer patients with neoadjuvant chemotherapy. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.075] [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: 11/30/2022] Open
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Bi Z, Li X, Ren M, Gu Y, Zhu T, Li S, Wang G, Sun S, Sun Y, Liu Z. Development and transdifferentiation into inner hair cells require Tbx2. Natl Sci Rev 2022; 9:nwac156. [PMID: 36687561 PMCID: PMC9844247 DOI: 10.1093/nsr/nwac156] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [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: 05/12/2022] [Revised: 07/21/2022] [Accepted: 07/21/2022] [Indexed: 01/25/2023] Open
Abstract
Atoh1 is essential for the development of both outer hair cells (OHCs) and inner hair cells (IHCs) in the mammalian cochlea. Whereas Ikzf2 is necessary for OHC development, the key gene required for IHC development remains unknown. We found that deletion of Tbx2 in neonatal IHCs led to their transdifferentiation into OHCs by repressing 26.7% of IHC genes and inducing 56.3% of OHC genes, including Ikzf2. More importantly, persistent expression of Tbx2 coupled with transient Atoh1 expression effectively reprogrammed non-sensory supporting cells into new IHCs expressing the functional IHC marker vGlut3. The differentiation status of these new IHCs was considerably more advanced than that previously reported. Thus, Tbx2 is essential for IHC development and co-upregulation of Tbx2 with Atoh1 in supporting cells represents a new approach for treating deafness related to IHC degeneration.
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Affiliation(s)
| | | | | | - Yunpeng Gu
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Tong Zhu
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China
| | - Shuting Li
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guangqin Wang
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Suhong Sun
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuwei Sun
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai 200031, China,University of Chinese Academy of Sciences, Beijing 100049, China
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Zhang L, Feng X, Gu Y, Yang T, Li X, Yu H, You Z. SYNTHESES, CRYSTAL STRUCTURES, AND ANTIMICROBIAL ACTIVITIES OF ZINC COMPLEXES DERIVED FROM 2-AMINO-N′- (PYRIDIN-2-YLMETHYLENE)BENZOHYDRAZIDE. J STRUCT CHEM+ 2022. [DOI: 10.1134/s0022476622080170] [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: 11/23/2022]
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Bjelic M, Wood K, Paic F, Louis C, Cheyne C, Goodman A, Gu Y, Chase K, Vidula H, Gosev I. Bridging INTERMACS Profile 1 Patients to Left Ventricular Assist Device: The Right Device, the Right Time, and the Best Surgical Approach. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1191] [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: 10/18/2022] Open
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Sun L, Deng C, Gu Y, He Y, Yang L, Shi J. Effects of dapagliflozin in patients with nonalcoholic fatty liver disease: A systematic review and meta-analysis of randomized controlled trials. Clin Res Hepatol Gastroenterol 2022; 46:101876. [PMID: 35321843 DOI: 10.1016/j.clinre.2022.101876] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 01/29/2022] [Accepted: 02/04/2022] [Indexed: 02/06/2023]
Abstract
BACKGROUND Dapagliflozin as a treatment option in patients with nonalcoholic fatty liver disease (NAFLD) has received increasing attention, however, the efficacy and safety of dapagliflozin for NAFLD has not been well assessed. This meta-analysis aimed to summarize these RCTs and evaluate the efficacy of dapagliflozin for patients with NAFLD. METHODS The PubMed, Embase, Web of Science, and Cochrane Library databases were searched for RCTs comparing dapagliflozin with placebo or active comparator in patients with NAFLD from inception to Oct 2021. RESULTS We included seven trials with 390 randomized participants in total. Compared to the placebo or control group, dapagliflozin could reduce the levels of alanine aminotransferase(ALT) (WMD: -6.62U/L; 95%CI: -12.66,-0.58; p = 0.03) and aspartate aminotransaminase(AST) (WMD: -4.20U/L; 95%CI: -7.92,-0.47; p = 0.03). However, dapagliflozin produced a non-significant decrease in gamma-glutamyl transferase (GGT) levels (WMD: -7.28U/L; 95%CI: -16.26,1.71; p = 0.11). Additionally, we showed that dapagliflozin significantly affect Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) (WMD: -0.88; 95%CI: -1.43,-0.33; p = 0.002). Metabolic outcomes, such as bodyweight (WMD: -3.79 Kg; 95%CI: -4.63,-2.95; p < 0.00001), body mass index (BMI) (WMD: -1.33 Kg/m2; 95%CI: -2.37,-0.28; p = 0.01), low-density lipoprotein cholesterol (LDL-C) (WMD: -2.66 mg/dL; 95%CI: -3.99,-1.32; p < 0.00001) and triglycerides (TG) (WMD: -16.77 mg/dL; 95%CI: -31.93,-1.61; p = 0.03) were also reduced. Meanwhile, we found that dapagliflozin increased total cholesterol (TC) (WMD: 9.77 mg/dL; 95%CI: 1.58,17.97; p = 0.02). There was no significant difference in the incidence of total adverse events between the dapagliflozin group and the control group (RR = 0.96; 95%CI: 0.60,1.54; p = 0.86). CONCLUSION Our results suggest that dapagliflozin effectively improves liver function parameters and metabolic outcomes among patients with NAFLD. At the same time, treatment with dapagliflozin may increase total cholesterol.
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Affiliation(s)
- Lei Sun
- Medical School, Hangzhou Normal University, Zhejiang, China
| | - Chaohua Deng
- Medical School, Hangzhou Normal University, Zhejiang, China
| | - Yunpeng Gu
- School of Public Health, Hangzhou Normal University, Zhejiang, China
| | - Yining He
- Medical School, Hangzhou Normal University, Zhejiang, China
| | - Luping Yang
- Medical School, Zhejiang Chinese Medical University, Zhejiang, China
| | - Junping Shi
- The Department of Hepatology, The Affiliated Hospital & Institute of Hepatology and Metabolic Disease of Hangzhou Normal University, Hangzhou, Zhejiang, China.
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Gu Y, Zhang W, Hu Y, Chen Y, Shi J. Association between nonalcoholic fatty liver disease and depression: A systematic review and meta-analysis of observational studies. J Affect Disord 2022; 301:8-13. [PMID: 34986375 DOI: 10.1016/j.jad.2021.12.128] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 11/29/2021] [Accepted: 12/30/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) is associated with an increased prevalence of psychological conditions such as depression and anxiety. However, the correlation between NAFLD and depression has not been well illustrated. METHODS Studies that investigate the association between nonalcoholic fatty liver disease and depression were searched in multiple electronic databases. Pooled odds ratios (ORs) and confidence intervals (CIs) of the included articles were calculated using a fixed- or random effects model. RESULTS A total of seven articles were included in this study. The results of the meta-analysis showed that compared with those without nonalcoholic fatty liver disease, individuals with it had a significantly increased risk of depression (pooled OR = 1.13, 95% CI: 1.03, 1.24, p = 0.007), and there was evidence that heterogeneity was not significant (I2 = 13.6%, p for heterogeneity = 0.324). Moreover, depressed patients had a significantly increased risk of developing nonalcoholic fatty liver disease compared with non-depressed patients (pooled OR = 1.46, 95% CI: 1.15, 1.85, p = 0.002), and evidence of non-significant heterogeneity was observed (I2 = 0%, p = 0.837 for heterogeneity). LIMITATIONS The majority of the included articles in this study are cross-sectional studies and could not elucidate the causal relationship, so further longitudinal studies are needed to clarify the causal relationship. CONCLUSION Nonalcoholic fatty liver and depression are highly correlated, the two interact with each other and have a high risk of comorbidities. In the future more high quality prospective studies will be needed to validate our results.
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Affiliation(s)
- Yunpeng Gu
- School of Public Health, Hangzhou Normal University, Zhejiang, China.
| | - Wei Zhang
- School of Public Health, Hangzhou Normal University, Zhejiang, China.
| | - Yanli Hu
- School of Nursing, Jinan University, Guangdong, China
| | - Yutong Chen
- School of Nursing, Hangzhou Normal University, Zhejiang, China.
| | - Junping Shi
- The Department of Hepatology, the Affiliated Hospital of Hangzhou Normal University, Hangzhou, Zhejiang, China.
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Yang M, Gu Y, Sun J, Lv Q, Qi Y, Jin J, Liu Z, Ma G. Difficulty of Severe Post-liposuction Infragluteal Deformity Correction With Autologous Fat Transplantation: A Case Report. Front Surg 2022; 9:758566. [PMID: 35198594 PMCID: PMC8858828 DOI: 10.3389/fsurg.2022.758566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 01/03/2022] [Indexed: 11/13/2022] Open
Abstract
Overaggressive liposuction of the infragluteal region can lead to iatrogenic infragluteal fold deformity and result in esthetic defects in the gluteal contour. We report a case of using autologous fat transplantation to correct severe post-liposuction infragluteal fold deformity. In the process of reconstruction, the patient experienced fat graft overabsorption, fat graft translocation, and gluteal ptosis aggravation. Despite multiple operations, the effect of fat transplantation was limited. In conclusion, severe post-liposuction infragluteal deformity is very difficult to correct. The infragluteal region should be preserved during liposuction to avoid deformity.
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Tian XY, Duan WJ, Wu XQ, Zhang C, Wang ZW, Cao GH, Ji BQ, Gu Y, Qin T, Yan TZ. [Analysis of the efficacy and safety of low-dose aspirin in preventing renal artery stenosis in kidney transplantation]. Zhonghua Yi Xue Za Zhi 2022; 102:273-278. [PMID: 35073676 DOI: 10.3760/cma.j.cn112137-20210817-01869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To evaluate the clinical value of aspirin as a prophylactic for transplant renal artery stenosis (TRAS). Methods: From January 2017 to November 2019, clinical data of 307 patients who had undergone renal transplant in Zhengzhou University People's Hospital were collected. Patients were divided into two groups: the treatment group (124 recipients who had taken oral aspirin 100 mg/d after transplant) and the control group (183 recipients who had not taken aspirin after transplant). The general data, incidence of initially diagnosed and confirmed TRAS, type of renal artery anastomosis vessels, duration of stenosis, location of stenosis, and complications were compared between the two groups. The treatment group was further divided into two subgroups, the early group (92 recipients) and the delayed group (32 recipients), according to the time of starting aspirin after operation. Subgroup analysis was performed. Results: Among all 307 patients included, there were 241 males and 66 females, aged 19-64 years. There were no statistical difference between the treatment and control groups in terms of gender, age, comorbidities, number of arterial vessels, type of graft, and acute rejection all P>0.05. Among 46 initially diagnosed TRAS patients, 13 (10.5%) and 33 (18.0%) cases were in the treatment and control group respectively, with no statistically significant difference in stenosis rate (P>0.05). The number of confirmed TRAS patients was 1 (0.8%) and 24 (13.1%) in the treatment and control group respectively, with statistically significant difference in stenosis rate (P<0.001). The proportion of patients with bleeding disorders in the treatment group was slightly higher than that in the control group (13.7% vs 8.7%), and the proportion of infarct diseases was slightly lower than that in the control group (1.6% vs 4.9%). But there was no significant difference in aspirin-related complications between the two groups (P>0.05). Subgroup analysis showed that there was no significant difference in initially diagnosed and confirmed TRAS and aspirin-related complications between the early group and the delayed group (all P>0.05). Conclusions: Oral low-dose aspirin after kidney transplantation can effectively reduce the incidence of TRAS, without increasing the risk of aspirin-related complications.
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Affiliation(s)
- X Y Tian
- Department of Urology, Zhengzhou University People's Hospital, Henan Provincial Clinical Research Center for Kidney Disease, Zhengzhou 450003, China
| | - W J Duan
- Department of Clinical Medical Research Center, Zhengzhou University People's Hospital, Zhengzhou 450003, China
| | - X Q Wu
- Department of Urology, Zhengzhou University People's Hospital, Henan Provincial Clinical Research Center for Kidney Disease, Zhengzhou 450003, China
| | - C Zhang
- Department of Urology, Zhengzhou University People's Hospital, Henan Provincial Clinical Research Center for Kidney Disease, Zhengzhou 450003, China
| | - Z W Wang
- Department of Urology, Zhengzhou University People's Hospital, Henan Provincial Clinical Research Center for Kidney Disease, Zhengzhou 450003, China
| | - G H Cao
- Department of Urology, Zhengzhou University People's Hospital, Henan Provincial Clinical Research Center for Kidney Disease, Zhengzhou 450003, China
| | - B Q Ji
- Department of Urology, Zhengzhou University People's Hospital, Henan Provincial Clinical Research Center for Kidney Disease, Zhengzhou 450003, China
| | - Y Gu
- Department of Urology, Zhengzhou University People's Hospital, Henan Provincial Clinical Research Center for Kidney Disease, Zhengzhou 450003, China
| | - T Qin
- Department of Hepatobilliary and Pancreatic surgery, Zhengzhou University People's Hospital, Zhengzhou 450003, China
| | - T Z Yan
- Department of Urology, Zhengzhou University People's Hospital, Henan Provincial Clinical Research Center for Kidney Disease, Zhengzhou 450003, China
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Yang M, Gu Y, Wang D, Li J, Sun J, Lv Q, Qi Y, Han X, Qi Z, Ma GE. Liposuction of the Zygomatic Arch Area: A Novel Concept to Improve the Midface Contour. Aesthetic Plast Surg 2022; 46:1689-1697. [PMID: 35059815 DOI: 10.1007/s00266-021-02765-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 12/14/2021] [Indexed: 11/01/2022]
Abstract
BACKGROUND An ovoid, slender face with a smooth contour is preferred in oriental esthetics. We developed a novel concept to achieve a slimmer and harmonious midface contour by liposuction of the projection area of the zygomatic arch. METHODS A cadaver study including anatomical dissection and histologic examination were conducted to better understand the soft tissue structure of the projection area of the zygomatic arch and the vital technique for liposuction. For the clinical evaluation, 49 patients with midface hypertrophy who underwent liposuction of the zygomatic arch area from January 2016 to June 2021 were retrospectively reviewed. RESULTS Cadaver study showed that abundant fatty tissue existed in the subcutaneous layer of the zygomatic arch area. The liposuction manipulation was precisely limited to the subcutaneous fat layer, and nerve branches were observed in the deeper loose areolar tissue plane. Of the 49 patients enrolled in this study (including 98 zygomatic arch areas), the median fat removal volume per zygomatic arch area was 3.0 (2.0, 5.0) mL. The subcutaneous fat thickness was significantly decreased postoperatively [median 9 (6, 10) mm vs. 1 (1, 2) mm per zygomatic arch area, P < 0.001]. All patients were satisfied with their postoperative outcomes. Only three patients underwent slight depression of the liposuction area during making facial expression after surgery and subsequently recovered. CONCLUSIONS Liposuction of the zygomatic arch area is effective in improving midface hypertrophy and achieving a harmonious facial contour with a low risk of complications. LEVEL OF EVIDENCE IV This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Wang L, Yao Q, Zhang YP, Xia YL, Gu Y, Zhou HC. [Systematic evaluation of qualitative research on the real experience of burn patients during rehabilitation]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:69-76. [PMID: 34839598 DOI: 10.3760/cma.j.cn501120-20201130-00507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To systematically evaluate and integrate the real experience of burn patients during rehabilitation, and to provide theoretical guidance for the continual nursing care for burn patients. Methods: The systematic evaluation method was adopted. Databases including the China National Knowledge Internet, Wanfang Database, China Biology Medicine disc were retrieved with the search terms in Chinese version of "/, //, ////", and PubMed, Embase, CINAHL, PsycINFO, Cochrane Library were retrieved with the search terms of "burn/burns, rehabilitation/recovery/survivor/survive, experience/views/perceptions/, qualitative/phenomenon/interview/grounded theory". The qualitative studies on the real experience of burn patients during rehabilitation published from the establishment of each database to June 2020 were searched. The quality of the included studies was evaluated according to the quality evaluation criteria for qualitative research of the Joanna Briggs Institute Evidence-Based Health Care Center. The research country, research method, research object, research content, and main research result were summarized, and meta-synthesis of the research results was conducted with the aggregative integration method. Results: A total of 12 studies were included, and the quality of all the studies was grade B. The studies were conducted in 8 countries including Australia, Canada, Norway, etc., the research method mainly was phenomenological research method, and all the studies were focused on adult burn patients. A total of 46 specific themes were extracted with totally 10 new categories formed after summarization, and 3 integrated results were obtained as follows: burn patients suffered from both physical and psychological burdens, and their normal life was broken; burn patients gained post-traumatic growth and could actively adjust to cope with life difficulties; burn patients had multiple needs. Conclusions: Burn patients experience both physical and psychological pains during rehabilitation, so they long for multiple support from family and society. Medical staff, social groups, and family members should pay attention to the psychological experience and needs of burn patients with different characteristics during rehabilitation, and build a multi-directional social support system to help patients return to the society and rebuild their lives.
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Affiliation(s)
- L Wang
- Department of Burns and Plastic Surgery, the Second People's Hospital of Chengdu, Chengdu 610000, China
| | - Q Yao
- Department of Nursing, the Second People's Hospital of Chengdu, Chengdu 610000, China
| | - Y P Zhang
- Department of Nursing, the Second Hospital Affiliated to Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Y L Xia
- Department of Nursing, the Second Hospital Affiliated to Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Y Gu
- Department of Burns and Plastic Surgery, the Second People's Hospital of Chengdu, Chengdu 610000, China
| | - H C Zhou
- School of Medicine, Huzhou University, Huzhou 313000, China
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Souchet B, Audrain M, Gu Y, Lindberg MF, Orefice NS, Rey E, Cartier N, Janel N, Meijer L, Braudeau J. Cerebral Phospho-Tau Acts Synergistically with Soluble Aβ42 Leading to Mild Cognitive Impairment in AAV-AD Rats. J Prev Alzheimers Dis 2022; 9:480-490. [PMID: 35841249 DOI: 10.14283/jpad.2022.18] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
BACKGROUND Alzheimer's disease (AD) is a continuum of events beginning with an increase in brain soluble Aβ42 followed by the appearance of hyperphosphorylated tau (P-tau, asymptomatic stage). Mild Cognitive Impairment (MCI) then appears (prodromal stage). However, the individual contribution of these two soluble proteins in the onset of the first cognitive symptoms remains unclear. OBJECTIVES We sought to understand the specific impact of p-tau on the development of MCI in the AAV-AD rat model, a model of late-onset Alzheimer's disease (LOAD) predementia. METHODS We specifically reduced the phosphorylation level of tau while leaving Aβ42 levels unchanged using a DYRK1A protein kinase inhibitor, Leucettine L41, in an adeno-associated virus-based Alzheimer's disease (AAV-AD) rat model. Leucettine L41 was administered by intraperitoneal injection at 20 mg/kg per day in AAV-AD rats from 9 (late asymptomatic phase) to 10 (prodromal phase) months of age. RESULTS Decreased soluble forms of P-tau induced by chronic administration of Leucettine L41 did not change soluble Aβ42 levels but prevented MCI onset in 10-month-old AAV-AD rats. CONCLUSIONS The present study argues that P-tau is required to induce the development of MCI. Consistent with our previous findings that soluble Aβ42 is also required for MCI onset, the data obtained in the AAV-AD rat model confirm that the transition from the asymptomatic to the prodromal stage may be caused by the combined presence of both soluble brain forms of Aβ42 and p-tau, suggesting that the development of MCI may be the consequence of their synergistic action.
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Affiliation(s)
- B Souchet
- Jérôme Braudeau, AgenT SAS, Evry 91000, France,
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Souchet B, Audrain M, Gu Y, Lindberg M, Orefice N, Rey E, Cartier N, Janel N, Meijer L, Braudeau J. Erratum to: Cerebral phospho-tau acts synergistically with soluble Aβ42 leading to Mild Cognitive Impairment in AAV-AD rats. J Prev Alzheimers Dis 2022. [DOI: 10.14283/jpad.2022.74] [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: 11/05/2022]
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Freitas PHF, Johnson JS, Chen S, Oliveira HR, Tiezzi F, Lázaro SF, Huang Y, Gu Y, Schinckel AP, Brito LF. Definition of Environmental Variables and Critical Periods to Evaluate Heat Tolerance in Large White Pigs Based on Single-Step Genomic Reaction Norms. Front Genet 2021; 12:717409. [PMID: 34887897 PMCID: PMC8650309 DOI: 10.3389/fgene.2021.717409] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Accepted: 10/15/2021] [Indexed: 12/18/2022] Open
Abstract
Properly quantifying environmental heat stress (HS) is still a major challenge in livestock breeding programs, especially as adverse climatic events become more common. The definition of critical periods and climatic variables to be used as the environmental gradient is a key step for genetically evaluating heat tolerance (HTol). Therefore, the main objectives of this study were to define the best critical periods and environmental variables (ENV) to evaluate HT and estimate variance components for HT in Large White pigs. The traits included in this study were ultrasound backfat thickness (BFT), ultrasound muscle depth (MDP), piglet weaning weight (WW), off-test weight (OTW), interval between farrowing (IBF), total number of piglets born (TNB), number of piglets born alive (NBA), number of piglets born dead (NBD), number of piglets weaned (WN), and weaning to estrus interval (IWE). Seven climatic variables based on public weather station data were compared based on three criteria, including the following: (1) strongest G×E estimate as measured by the slope term, (2) ENV yielding the highest theoretical accuracy of the genomic estimated breeding values (GEBV), and (3) variable yielding the highest distribution of GEBV per ENV. Relative humidity (for BFT, MDP, NBD, WN, and WW) and maximum temperature (for OTW, TNB, NBA, IBF, and IWE) are the recommended ENV based on the analyzed criteria. The acute HS (average of 30 days before the measurement date) is the critical period recommended for OTW, BFT, and MDP in the studied population. For WN, WW, IBF, and IWE, a period ranging from 34 days prior to farrowing up to weaning is recommended. For TNB, NBA, and NBD, the critical period from 20 days prior to breeding up to 30 days into gestation is recommended. The genetic correlation values indicate that the traits were largely (WN, WW, IBF, and IWE), moderately (OTW, TNB, and NBA), or weakly (MDP, BFT, and NBD) affected by G×E interactions. This study provides relevant recommendations of critical periods and climatic gradients for several traits in order to evaluate HS in Large White pigs. These observations demonstrate that HT in Large White pigs is heritable, and genetic progress can be achieved through genetic and genomic selection.
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Affiliation(s)
- P. H. F. Freitas
- Department of Animal Sciences, Purdue University, West Lafayette, IN, United States
| | - J. S. Johnson
- USDA-ARS Livestock Behavior Research Unit, West Lafayette, IN, United States
| | - S. Chen
- Department of Animal Sciences, Purdue University, West Lafayette, IN, United States
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, China
| | - H. R. Oliveira
- Department of Animal Sciences, Purdue University, West Lafayette, IN, United States
- Centre for Genetic Improvement of Livestock, Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - F. Tiezzi
- Department of Animal Science, North Carolina State University, Raleigh, NC, United States
| | - S. F. Lázaro
- Department of Animal Sciences, Purdue University, West Lafayette, IN, United States
- Department of Animal Science, College of Agricultural and Veterinary Sciences, São Paulo State University (UNESP), Jaboticabal, Brazil
| | - Y. Huang
- Smithfield Premium Genetics, Rose Hill, NC, United States
| | - Y. Gu
- Smithfield Premium Genetics, Rose Hill, NC, United States
| | - A. P. Schinckel
- Department of Animal Sciences, Purdue University, West Lafayette, IN, United States
| | - L. F. Brito
- Department of Animal Sciences, Purdue University, West Lafayette, IN, United States
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Merlo C, DerSarkissian M, Nguyen C, Gu Y, Muthukumar A, McGarry L, Potter M, Thorat T, Cahill JR, Brookhart M. 178: Long-term impact of ivacaftor on health outcomes and mortality in people with cystic fibrosis in the U.S. CF Foundation Patient Registry (CFFPR). J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01603-9] [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: 10/20/2022]
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Gosling R, Gunn E, Wei HL, Gu Y, Rammohan V, Hughes T, Hose DR, Lawford PV, Gunn JP, Morris PD. Utilising clinical data to personlaise boundary conditions significantly improves the accuracy of angiography based virtual FFR. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1074] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Angiography-derived computed (virtual) fractional flow reserve (vFFR) permits the assessment of coronary physiology without the need for a pressure wire or hyperaemia. However, accuracy is limited by assumptions made about coronary microvascular resistance (CMVR) [1]. We hypothesised that machine learning may allow us to “tune” our estimate of the CMVR to increase the accuracy of vFFR.
Purpose
To determine whether routine clinical data can personalise CMVR and improve the accuracy of vFFR on an individual case basis.
Methods
Patients with chronic coronary syndromes underwent coronary angiography with FFR assessment. Vessel-specific CMVR was computed using a 3D- computational fluid dynamics simulation with invasively measured proximal and distal pressures. Predictive models were created using non-linear autoregressing moving average with exogenous inputs (NARMAX) modelling with computed CMVR as the dependent variable. vFFR was computed using previously described methods [2]. Three simulations were run, using: 1) a generic CMVR value (Model A); 2) a NARMAX-predicted CMVR based upon a panel of simple clinical data (Model B); and 3) a NARMAX-predicted CMVR incorporating echocardiographic data (Model C). The diagnostic and quantitative accuracy of each model was compared with directly measured FFR.
Results
Eighty four patients underwent coronary angiography with FFR assessment in 157 vessels. Mean age was 64 (±0.1) years and 64 (76%) were male. Mean FFR was 0.79 (±0.15). Mean CMVR was 1.01e+10 Pa/m3 s–1. vFFR error with Model A was ±0.10, with Model B was ±0.07 (p<0.001) and with Model C was ±0.05 (p<0.001) (Table 1).
Conclusion
vFFR is dependent upon not only the epicardial stenosis, but also the CMVR, estimation of which can be personalised based upon clinical and echocardiographic data. This can be used to increase the accuracy of vFFR.
Funding Acknowledgement
Type of funding sources: Other. Main funding source(s): British Heart Foundation Clinial Research Training FellowshipNIHR i4i grant Table 1
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Affiliation(s)
- R Gosling
- University of Sheffield, Infection, Immunity and Cardiovascular Disease, Sheffield, United Kingdom
| | - E Gunn
- University of Manchester, Manchester, United Kingdom
| | - H L Wei
- University of Sheffield, Automatic Control and Systems Engineering, Sheffield, United Kingdom
| | - Y Gu
- University of Sheffield, Automatic Control and Systems Engineering, Sheffield, United Kingdom
| | - V Rammohan
- University of Sheffield, Infection, Immunity and Cardiovascular Disease, Sheffield, United Kingdom
| | - T Hughes
- University of Sheffield, Infection, Immunity and Cardiovascular Disease, Sheffield, United Kingdom
| | - D R Hose
- University of Sheffield, Infection, Immunity and Cardiovascular Disease, Sheffield, United Kingdom
| | - P V Lawford
- University of Sheffield, Infection, Immunity and Cardiovascular Disease, Sheffield, United Kingdom
| | - J P Gunn
- University of Sheffield, Infection, Immunity and Cardiovascular Disease, Sheffield, United Kingdom
| | - P D Morris
- University of Sheffield, Infection, Immunity and Cardiovascular Disease, Sheffield, United Kingdom
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Ren HY, Kum KY, Zhao YS, Yoo YJ, Jeong JS, Perinpanayagam H, Wang XY, Li GJ, Wang F, Fang H, Gu Y. Maxillary molar root and canal morphology of Neolithic and modern Chinese. Arch Oral Biol 2021; 131:105272. [PMID: 34600333 DOI: 10.1016/j.archoralbio.2021.105272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 09/12/2021] [Accepted: 09/21/2021] [Indexed: 01/17/2023]
Abstract
OBJECTIVE This study aimed to characterize Neolithic human maxillary molars from archeological remains at the Jiaojia site, Shandong, China, and compare their ultrastructural features with sex and age-matched modern locals. DESIGN Maxillary first (n = 86) and second (n = 80) molars in 5000-year-old individuals (n = 50) from the Jiaojia site were scanned by cone-beam computed tomography (CBCT). Sex and age-matched control groups were assigned from oral surgical patients at Shandong University. Images were analyzed for crown size, root length, root morphology, canal inter-orifice distances, mesiobuccal canal morphology, and second mesiobuccal (MB2) canal prevalence and location. Neolithic and modern values were compared statistically using Chi-squared and Mann-Whitney test at p < .05. RESULTS Crown and root size were smaller, and canal inter-orifice distances were shorter in Neolithic maxillary molars than their modern counterparts. For mesiobuccal roots, Weine's Type I single canals were the most prevalent in Neolithic and modern first and second molars. MB2 canal prevalence were not significantly different (p > .05) in Neolithic (53.3%) or modern (60.5%) first molars, and Neolithic (11.3%) or modern (21.3%) second molars. But, MB2 prevalence was significantly higher for modern than ancient male first (p = .032) and second (p = .005) molars. Additionally, MB2 were located more mesially and closer to MB1 in Neolithic than modern molars. CONCLUSIONS Maxillary molar root and canal morphology of ancient 5000-year-old remains at the Jiaojia site resemble that of local patients. A trend towards larger tooth size, and more dispersed MB2 canals over this short evolutionary period warrants additional investigation.
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Affiliation(s)
- H Y Ren
- School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Province, PR China
| | - K Y Kum
- Department of Conservative Dentistry, Dental Research Institute, National Dental Care Center for Persons with Special Needs, Seoul National University Dental Hospital, Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - Y S Zhao
- Institute of Cultural and Heritage, Shandong University, Qingdao, PR China
| | - Y J Yoo
- Department of Conservative Dentistry, Dental Research Institute, National Dental Care Center for Persons with Special Needs, Seoul National University Dental Hospital, Seoul National University School of Dentistry, Seoul, Republic of Korea
| | - J S Jeong
- School of Nursing and Rehabilitation, Cheeloo College of Medicine, Shandong University, Shandong Province, PR China
| | - Hiran Perinpanayagam
- Division of Restorative Dentistry, Schulich School of Medicine & Dentistry, University of Western Ontario, London, Canada
| | - X Y Wang
- Department of Endodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Province, PR China
| | - G J Li
- Department of Radiology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Province, PR China
| | - F Wang
- Department of Radiology, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Province, PR China
| | - H Fang
- School of History and Culture, Shandong University, Jinan, PR China
| | - Y Gu
- Department of Endodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Shandong Province, PR China.
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Gu Y, Huang RW, Wang M, Tang CH, Li P, Duan J, Shi LB, Li M, Fu HM. [Epidemiological characteristics of adenovirus infection in hospitalized children with acute respiratory tract infection in Kunming during 2019]. Zhonghua Er Ke Za Zhi 2021; 59:772-776. [PMID: 34645218 DOI: 10.3760/cma.j.cn112140-20210319-00231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the epidemiology and clinical characteristics of adenovirus (ADV)-caused acute respiratory tract infection among hospitalized children in Kunming, China. Methods: Clinical and laboratory data were collected from 467 children with adenovirus infection who were hospitalized from January 1, 2019 to December 31, 2019 in 6 grade A class Ⅲ hospitals in Kunming area. The basic characteristics, epidemiology, mixed infection and adenovirus genotypes of the patients were retrospectively analyzed. The patients diagnosed with adenovirus pneumonia (AP) were divided into two groups, severe AP (SAP) group and general AP(GAP) group according to the severity of illness. Mann-Whitney U test or χ2 test was used for comparison between groups, while multivariate regression was applied to analyze the risk factors of SAP. Results: Among 15 635 hospitalized children with respiratory tract infection, 467 cases were adenovirus positive, with a detection rate of 2.99%. Of the 467 patients with adenovirus infection, 284 were male and 183 female, the age was 2.4 (1.1,3.9) years, including 44 cases (9.4%) < 0.5 years, 59 cases (12.6%) of 0.5 to<1.0 years, 176 cases (37.7%) of 1.0 to <3.0 years, 150 cases (32.1%) of 3.0 to <7.0 years, and 38 cases (8.1%) of 7.0 to 14.0 years. Adenovirus infection was common in autumn and winter, and the high incidence months were October to December, which accounted for 51.6% (241/467) of the whole year cases. Co-infection was detected in 226 cases (48.4%) out of 467 patients, in which one pathogen co-infection was the most frequent form (172 cases, 76.1%). Of the 262 pathogen detected 108 (41.2%) were Mycoplasma pneumoniae. In 144 of ADV-positve cases (30.8%) were taken geno-typing was done by PCR amplification, the results showed that 74 cases (51.4%) were ADV 3, 7 subtypes and 65 cases (45.1%) of ADV 1, 2,6 subtypes. Of the 467 cases of ADV infection, 320 (68.5%) were diagnosed with pneumonia, 82 (17.6%) with upper respiratory tract infection and pharyngeal tonsillitis, and 65 (13.9%) with bronchitis, laryngeal bronchitis, and asthmatic bronchitis. Among the 320 patients with AP, 56 cases were severe and 264 cases were general. Two cases (3.6%) in severe group died. Compared with the GAP group, the age was young [17 (11,42) months vs. 24 (14,44) months, Z=2.222, P=0.026], the fever duration was long [8 (5,14) days vs. 6 (3,9) days, Z=3.380, P<0.01], and the proportions of preterm birth and having underlying diseases were high [respectively 19.6% (11/56) vs. 6.1% (16/264), 26.8% (15/56) vs. 10.2% (27/264), χ2=8.965,11.109, P<0.05] in SAP group. Referring to laboratory markers, white blood cell count, C-reactive protein, creatine kinase-MB and lactate dehydrogenase were significantly increased in SAP group as compared to GAP group(all P<0.05). Multivariate Logistic regression analysis showed that preterm birth (OR=3.284, 95%CI 1.079-9.993, P=0.036), underlying disease (OR=3.284, 95%CI 1.079-9.993, P=0.036), fever duration ≥10 d (OR=2.523,95%CI 1.195-5.328, P=0.015) and C-reactive protein ≥50 mg/L (OR=3.156, 95%CI 1.324-7.524, P=0.010) were positively correlated with the risk of SAP. Conclusions: The incidence of adenovirus infection among hospitalized children in Kunming was lower than the national level, and no outbreak occurred in 2019. Subtype 3 and 7 of ADV are the predominant strains for infection, which usually occurs in autumn and winter and mainly causes pneumonia. Premature birth, underlining diseases, long fever duration and markedly increased C-reactive protein are the risk factors for developing into severe pneumonia. This paper presents the prevalence and clinical characteristics of adenovirus infection in children at high altitude area.
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Affiliation(s)
- Y Gu
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - R W Huang
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - M Wang
- Department of Pediatrics, Yunnan Maternal and Child Health Hospital, Kunming 650051, China
| | - C H Tang
- Department of Pediatrics, the First People's Hospital of Yunnan Province, Kunming 650032, China
| | - P Li
- Department of Pediatrics, the First People's Hospital of Kunming, Kunming 650011, China
| | - J Duan
- Department of Pediatrics, the First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - L B Shi
- Department of Pediatrics, the Second Affiliated Hospital of Kunming Medical University, Kunming 650101, China
| | - M Li
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
| | - H M Fu
- Department of Pulmonary and Critical Care Medicine, Kunming Children's Hospital, Yunnan Provincial Key Laboratory of Children's Major Diseases Research, Kunming 650034, China
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Fernández-Caballero A, Bousser E, Shubeita S, Wady P, Gu Y, Krishna R, Gorley M, Nguyen-Manh D, Mummery P, Pickering E. High-dose ion irradiation damage in Fe28Ni28Mn26Cr18 characterised by TEM and depth-sensing nanoindentation. Nuclear Materials and Energy 2021. [DOI: 10.1016/j.nme.2021.101028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Nenicu A, Yordanova K, Gu Y, Menger MD, Laschke MW. Differences in growth and vascularization of ectopic menstrual and non-menstrual endometrial tissue in mouse models of endometriosis. Hum Reprod 2021; 36:2202-2214. [PMID: 34109385 DOI: 10.1093/humrep/deab139] [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: 01/11/2021] [Revised: 03/29/2021] [Indexed: 11/12/2022] Open
Abstract
STUDY QUESTION Is there a difference in the growth and vascularization between murine endometriotic lesions originating from menstrual or non-menstrual endometrial fragments? SUMMARY ANSWER Endometriotic lesions developing from menstrual and non-menstrual tissue fragments share many similarities, but also exhibit distinct differences in growth and vascularization, particularly under exogenous estrogen stimulation. WHAT IS KNOWN ALREADY Mouse models are increasingly used in endometriosis research. For this purpose, menstrual or non-menstrual endometrial fragments serve for the induction of endometriotic lesions. So far, these two fragment types have never been directly compared under identical experimental conditions. STUDY DESIGN, SIZE, DURATION This was a prospective experimental study in a murine peritoneal and dorsal skinfold chamber model of endometriosis. Endometrial tissue fragments from menstruated (n = 15) and non-menstruated (n = 21) C57BL/6 mice were simultaneously transplanted into the peritoneal cavity or dorsal skinfold chamber of non-ovariectomized (non-ovx, n = 17), ovariectomized (ovx, n = 17) and ovariectomized, estrogen-substituted (ovx+E2, n = 17) recipient animals and analyzed throughout an observation period of 28 and 14 days, respectively. PARTICIPANTS/MATERIALS, SETTING, METHODS The engraftment, growth and vascularization of the newly developing endometriotic lesions were analyzed by means of high-resolution ultrasound imaging, intravital fluorescence microscopy, histology and immunohistochemistry. MAIN RESULTS AND THE ROLE OF CHANCE Menstrual and non-menstrual tissue fragments developed into peritoneal endometriotic lesions without differences in growth, microvessel density and cell proliferation in non-ovx mice. Lesion formation out of both fragment types was markedly suppressed in ovx mice. In case of non-menstrual tissue fragments, this effect could be reversed by estrogen supplementation. In contrast, endometriotic lesions originating from menstrual tissue fragments exhibited a significantly smaller volume in ovx+E2 mice, which may be due to a reduced hormone sensitivity. Moreover, menstrual tissue fragments showed a delayed vascularization and a reduced blood perfusion after transplantation into dorsal skinfold chambers when compared to non-menstrual tissue fragments, indicating different vascularization modes of the two fragment types. To limit the role of chance, the experiments were conducted under standardized laboratory conditions. Statistical significance was accepted for a value of P < 0.05. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION Endometriotic lesions were induced by syngeneic tissue transplantation into recipient mice without the use of pathological endometriotic tissue of human nature. Therefore, the results obtained in this study may not fully relate to human patients with endometriosis. WIDER IMPLICATIONS OF THE FINDINGS The present study significantly contributes to the characterization of common murine endometriosis models. These models represent important tools for studies focusing on the basic mechanisms of endometriosis and the development of novel therapeutic strategies for the treatment of this frequent gynecological disease. The presented findings indicate that the combination of different experimental models and approaches may be the most appropriate strategy to study the pathophysiology and drug sensitivity of a complex disease such as endometriosis under preclinical conditions. STUDY FUNDING/COMPETING INTEREST(S) There was no specific funding of this study. The authors have no conflicts of interest to declare.
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Affiliation(s)
- A Nenicu
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg/Saar, Germany
| | - K Yordanova
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg/Saar, Germany
| | - Y Gu
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg/Saar, Germany
| | - M D Menger
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg/Saar, Germany
| | - M W Laschke
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg/Saar, Germany
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Dai J, Zhang T, Guo J, Zhou Q, Gu Y, Zhang J, Hu L, Zong Y, Song J, Zhang S, Dai C, Gong F, Lu G, Zheng W, Lin G. P–568 Homozygous Pathogenic Variants in ACTL9 Cause Fertilization Failure and Male Infertility in Human and Mouse. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.567] [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] [Indexed: 11/13/2022] Open
Abstract
Abstract
Study question
What are the other male factors that cause total fertilization failure (TFF) excepting for variants in PLCZ1?
Summary answer
Homozygous variants in ACTL9 (actin like 9) cause abnormal localization of PLCζ in a loosened perinuclear theca (PT) structure and leads to TFF.
What is known already
In previous studies, investigators have reported that the female factors in TFF after intracytoplasmic sperm injection (ICSI) include pathogenic variants in WEE2, TLE6, and TUBB8, whereas for male factors, pathogenic variants in PLCZ1 were reported to be the primary cause of TFF, which account for approximately 30% of couples with male factors in TFF excluding globozoospermia. Most recently, it was reported that pathogenic variants in ACTL7A led to reduced expression and abnormal localization of PLCζ, thereby identifying this genetic variant as a potential cause of TFF.
Study design, size, duration
Fifty-four infertile couples with TFF or poor fertilization (fertilization rate of < 20%) at the Reproductive and Genetic Hospital of CITIC-Xiangya during January 2014 to June 2020 were recruited into this study.
Participants/materials, setting, methods
Male factors were identified in (MOAT). WES analysis was used to analyze the genetic factors of individuals with male factors. Sperm morphological study was conducted by H&E staining and TEM. Immunostaining of PLCζ was used to analyze the status of sperm-borne activation factor. A knock-in mouse model was generated by CRISPER-Cas9 technology. Sperm from homozygous Actl9 variant mice were analyzed by TEM and ICSI. ICSI with AOA was performed in couples with ACTL9 variants.
Main results and the role of chance
A total of 54 couples with TFF or poor fertilization were screened, with 21 couples determined to have a male infertility factor by MOAT. Whole-exome sequencing of these 21 male individuals identified three homozygous pathogenic variants in ACTL9 in three individuals. ACTL9 variations led to abnormal ultrastructure of the PT, with PLCζ absent in the head and present in the neck of the mutant sperm, which contributed to failed normal calcium oscillations in oocytes and subsequent TFF. The key roles of ACTL9 in the PT structure and TFF after ICSI were further confirmed in Actl9-mutated mouse model. Furthermore, assisted oocyte activation by calcium ionophore exposure successfully overcame TFF and achieved live births in a couple with an ACTL9 variant.
Limitations, reasons for caution
The mechanism of how ACTL9 regulate PLCζ remains unknown.
Wider implications of the findings: It provided a genetic marker and a therapeutic option for individuals who have undergone ICSI without successful fertilization.
Trial registration number
not applioable
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Affiliation(s)
- J Dai
- Central South University, School of basic medicine, Changsha, China
| | - T Zhang
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - J Guo
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - Q Zhou
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - Y Gu
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - J Zhang
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - L Hu
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - Y Zong
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - J Song
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - S Zhang
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - C Dai
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - F Gong
- Central South University, School of basic medicine, Changsha, China
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - G Lu
- Central South University, School of basic medicine, Changsha, China
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - W Zheng
- Reproductive and Genetic Hospital of CITIC-XIANGYA, Research department, Changsha, China
| | - G Lin
- Central South University, School of basic medicine, Changsha, China
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Hedrick G, Gu Y. Terrain-aware traverse planning for a Mars sample return rover. Adv Robot 2021. [DOI: 10.1080/01691864.2021.1955000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- G. Hedrick
- Department of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, WV, USA
| | - Y. Gu
- Department of Mechanical and Aerospace Engineering, West Virginia University, Morgantown, WV, USA
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Fan X, Gu Y, Guan B. The effect of dispatch of national medical teams to Wuhan on its control and prevention of COVID-19. Public Health 2021; 198:1-5. [PMID: 34325232 PMCID: PMC8078900 DOI: 10.1016/j.puhe.2021.04.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 03/17/2021] [Accepted: 04/20/2021] [Indexed: 11/25/2022]
Abstract
Objectives As a unique prevention and control measure, the dispatch of national medical teams to Wuhan has played a key role in protecting Wuhan against COVID-19. This study aimed to quantitatively evaluate the effect of this key measure in reducing infections and fatalities. Study design A scenario analysis is used in this study, where the forming of scenarios is on the basis of the stages of medical to Wuhan. We divided the evaluation into 4 scenarios: Scenario Ⅰ—no dispatch, Scenario Ⅱ—dispatch of 4599 medical staff, Scenario Ⅲ—dispatch of 16,000 staff, and Scenario Ⅳ—dispatch of 32,000 staff. Methods The extended Susceptible-Exposed-Infectious-Recovered-Death model was adopted to quantify the effect of the dispatch of national medical teams to Wuhan on COVID-19 prevention and control. Results The dispatch dramatically cuts the channels for the transmission of the virus and succeeds in raising the cure rates while reducing the fatality rates. If there were no dispatch at all, a cumulative total of 158,881 confirmed cases, 18,700 fatalities and a fatality rate of 11.77% would have occurred in Wuhan, which are 3.2 times, 4.8 times and 1.5 times the real figures respectively. The dispatch has avoided 108,541 confirmed cases and 14,831 fatalities in this city. Conclusions The proven successful measure provides valuable experience and enlightenment to international cooperation on prevention and control of COVID-19, as well as a similar outbreak of new emerging infectious diseases.
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Affiliation(s)
- X Fan
- Institute of Social Development, Chinese Academy of Macroeconomic Research, Beijing, 100038, China.
| | - Y Gu
- Institute of Social Development, Chinese Academy of Macroeconomic Research, Beijing, 100038, China
| | - B Guan
- Institute of Social Development, Chinese Academy of Macroeconomic Research, Beijing, 100038, China
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Wang KS, Yu G, Xu C, Meng XH, Zhou J, Zheng C, Deng Z, Shang L, Liu R, Su S, Zhou X, Li Q, Li J, Wang J, Ma K, Qi J, Hu Z, Tang P, Deng J, Qiu X, Li BY, Shen WD, Quan RP, Yang JT, Huang LY, Xiao Y, Yang ZC, Li Z, Wang SC, Ren H, Liang C, Guo W, Li Y, Xiao H, Gu Y, Yun JP, Huang D, Song Z, Fan X, Chen L, Yan X, Li Z, Huang ZC, Huang J, Luttrell J, Zhang CY, Zhou W, Zhang K, Yi C, Wu C, Shen H, Wang YP, Xiao HM, Deng HW. Accurate diagnosis of colorectal cancer based on histopathology images using artificial intelligence. BMC Med 2021; 19:76. [PMID: 33752648 PMCID: PMC7986569 DOI: 10.1186/s12916-021-01942-5] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 02/16/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Accurate and robust pathological image analysis for colorectal cancer (CRC) diagnosis is time-consuming and knowledge-intensive, but is essential for CRC patients' treatment. The current heavy workload of pathologists in clinics/hospitals may easily lead to unconscious misdiagnosis of CRC based on daily image analyses. METHODS Based on a state-of-the-art transfer-learned deep convolutional neural network in artificial intelligence (AI), we proposed a novel patch aggregation strategy for clinic CRC diagnosis using weakly labeled pathological whole-slide image (WSI) patches. This approach was trained and validated using an unprecedented and enormously large number of 170,099 patches, > 14,680 WSIs, from > 9631 subjects that covered diverse and representative clinical cases from multi-independent-sources across China, the USA, and Germany. RESULTS Our innovative AI tool consistently and nearly perfectly agreed with (average Kappa statistic 0.896) and even often better than most of the experienced expert pathologists when tested in diagnosing CRC WSIs from multicenters. The average area under the receiver operating characteristics curve (AUC) of AI was greater than that of the pathologists (0.988 vs 0.970) and achieved the best performance among the application of other AI methods to CRC diagnosis. Our AI-generated heatmap highlights the image regions of cancer tissue/cells. CONCLUSIONS This first-ever generalizable AI system can handle large amounts of WSIs consistently and robustly without potential bias due to fatigue commonly experienced by clinical pathologists. It will drastically alleviate the heavy clinical burden of daily pathology diagnosis and improve the treatment for CRC patients. This tool is generalizable to other cancer diagnosis based on image recognition.
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Affiliation(s)
- K S Wang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
- Department of Pathology, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - G Yu
- Department of Biomedical Engineering, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - C Xu
- Department of Biostatistics and Epidemiology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - X H Meng
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, 410081, Hunan, China
| | - J Zhou
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
- Department of Pathology, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - C Zheng
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
- Department of Pathology, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - Z Deng
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
- Department of Pathology, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - L Shang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - R Liu
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - S Su
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - X Zhou
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - Q Li
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - J Li
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - J Wang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, 410078, Hunan, China
| | - K Ma
- Department of Pathology, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - J Qi
- Department of Pathology, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - Z Hu
- Department of Pathology, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - P Tang
- Department of Pathology, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - J Deng
- Department of Deming Department of Medicine, Tulane Center of Biomedical Informatics and Genomics, Tulane University School of Medicine, 1440 Canal Street, Suite 1610, New Orleans, LA, 70112, USA
| | - X Qiu
- Centers of System Biology, Data Information and Reproductive Health, School of Basic Medical Science, School of Basic Medical Science, Central South University, Changsha, 410008, Hunan, China
| | - B Y Li
- Centers of System Biology, Data Information and Reproductive Health, School of Basic Medical Science, School of Basic Medical Science, Central South University, Changsha, 410008, Hunan, China
| | - W D Shen
- Centers of System Biology, Data Information and Reproductive Health, School of Basic Medical Science, School of Basic Medical Science, Central South University, Changsha, 410008, Hunan, China
| | - R P Quan
- Centers of System Biology, Data Information and Reproductive Health, School of Basic Medical Science, School of Basic Medical Science, Central South University, Changsha, 410008, Hunan, China
| | - J T Yang
- Centers of System Biology, Data Information and Reproductive Health, School of Basic Medical Science, School of Basic Medical Science, Central South University, Changsha, 410008, Hunan, China
| | - L Y Huang
- Centers of System Biology, Data Information and Reproductive Health, School of Basic Medical Science, School of Basic Medical Science, Central South University, Changsha, 410008, Hunan, China
| | - Y Xiao
- Centers of System Biology, Data Information and Reproductive Health, School of Basic Medical Science, School of Basic Medical Science, Central South University, Changsha, 410008, Hunan, China
| | - Z C Yang
- Department of Pharmacology, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, Hunan, China
| | - Z Li
- School of Life Sciences, Central South University, Changsha, 410013, Hunan, China
| | - S C Wang
- College of Information Science and Engineering, Hunan Normal University, Changsha, 410081, Hunan, China
| | - H Ren
- Department of Pathology, Gongli Hospital, Second Military Medical University, Shanghai, 200135, China
- Department of Pathology, the Peace Hospital Affiliated to Changzhi Medical College, Changzhi, 046000, China
| | - C Liang
- Pathological Laboratory of Adicon Medical Laboratory Co., Ltd, Hangzhou, 310023, Zhejiang, China
| | - W Guo
- Department of Pathology, First Affiliated Hospital of Hunan Normal University, The People's Hospital of Hunan Province, Changsha, 410005, Hunan, China
| | - Y Li
- Department of Pathology, First Affiliated Hospital of Hunan Normal University, The People's Hospital of Hunan Province, Changsha, 410005, Hunan, China
| | - H Xiao
- Department of Pathology, the Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
| | - Y Gu
- Department of Pathology, the Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
| | - J P Yun
- Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, 510060, China
| | - D Huang
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
| | - Z Song
- Department of Pathology, Chinese PLA General Hospital, Beijing, 100853, China
| | - X Fan
- Department of Pathology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, 210008, China
| | - L Chen
- Department of Pathology, The first affiliated hospital, Air Force Medical University, Xi'an, 710032, China
| | - X Yan
- Institute of Pathology and southwest cancer center, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Z Li
- Department of Pathology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Z C Huang
- Department of Biomedical Engineering, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - J Huang
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, 410013, Hunan, China
| | - J Luttrell
- School of Computing Sciences and Computer Engineering, University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - C Y Zhang
- School of Computing Sciences and Computer Engineering, University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - W Zhou
- College of Computing, Michigan Technological University, Houghton, MI, 49931, USA
| | - K Zhang
- Department of Computer Science, Bioinformatics Facility of Xavier NIH RCMI Cancer Research Center, Xavier University of Louisiana, New Orleans, LA, 70125, USA
| | - C Yi
- Department of Pathology, Ochsner Medical Center, New Orleans, LA, 70121, USA
| | - C Wu
- Department of Statistics, Florida State University, Tallahassee, FL, 32306, USA
| | - H Shen
- Department of Deming Department of Medicine, Tulane Center of Biomedical Informatics and Genomics, Tulane University School of Medicine, 1440 Canal Street, Suite 1610, New Orleans, LA, 70112, USA
- Division of Biomedical Informatics and Genomics, Deming Department of Medicine, Tulane University School of Medicine, New Orleans, LA, 70112, USA
| | - Y P Wang
- Department of Deming Department of Medicine, Tulane Center of Biomedical Informatics and Genomics, Tulane University School of Medicine, 1440 Canal Street, Suite 1610, New Orleans, LA, 70112, USA
- Department of Biomedical Engineering, Tulane University, New Orleans, LA, 70118, USA
| | - H M Xiao
- Centers of System Biology, Data Information and Reproductive Health, School of Basic Medical Science, School of Basic Medical Science, Central South University, Changsha, 410008, Hunan, China.
| | - H W Deng
- Department of Deming Department of Medicine, Tulane Center of Biomedical Informatics and Genomics, Tulane University School of Medicine, 1440 Canal Street, Suite 1610, New Orleans, LA, 70112, USA.
- Centers of System Biology, Data Information and Reproductive Health, School of Basic Medical Science, School of Basic Medical Science, Central South University, Changsha, 410008, Hunan, China.
- Division of Biomedical Informatics and Genomics, Deming Department of Medicine, Tulane University School of Medicine, New Orleans, LA, 70112, USA.
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76
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Gao L, Gu Y. [Correlation between midpalatal suture stage on cone-beam CT images and its cervical vertebral maturation stage for 1 076 Chinese children and youth]. Zhonghua Kou Qiang Yi Xue Za Zhi 2021; 56:251-255. [PMID: 33663154 DOI: 10.3760/cma.j.cn112144-20200616-00349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the correlation between cone-beam CT (CBCT) morphological stage of midpalatal suture (MPS) and cervical vertebral maturation stage (CS) of Chinese children and youth. Methods: This study was a retrospective observational study. A total of 1 076 CBCT images (male: 401, female: 675, age≥ 6.0 years old and<21.0 years old) taken from January 2013 to April 2018 in Peking University School and Hospital of Stomatology were included. MPS and CS of each sample were recorded according to previous studies. MPS included five stages: MPS 1, MPS 2, MPS 3, MPS 4s1 (substage), MPS 4s2 (substage), and MPS 5. CS included six stages: CS 1-6. Correlation between MPS and CS (ordinal categorical variables) was investigated by Spearman correlation coefficient and diagnostic test analysis. Results: Spearman coefficient between CS and MPS was 0.803. Diagnostic pairs with the best diagnostic performance include: CS 6-MPS 5, CS 5-MPS 4s2, CS 1-MPS 1, CS 4-MPS 4s1, CS 2-MPS 1, CS 3-MPS 3. The 90.9% (309/340) of individuals at CS 1-3 were at MPS 1-3 and 9.1% (31/340) were at MPS 4s1. The 33.0% (107/324) of individuals at CS 4 were at MPS 3 and 46.6% (151/324) were at MPS 4s1. Conclusions: CS has a close relationship with MPS. Individuals at CS 4 are recommended to take pre-treatment CBCT, so as to estimate feasibility of skeletal expansion with traditional tooth-borne rapid maxillary expansion.
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Affiliation(s)
- L Gao
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y Gu
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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77
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Gu Y, Rampin A, Alvino VV, Spinetti G, Madeddu P. Cell Therapy for Critical Limb Ischemia: Advantages, Limitations, and New Perspectives for Treatment of Patients with Critical Diabetic Vasculopathy. Curr Diab Rep 2021; 21:11. [PMID: 33651185 PMCID: PMC7925447 DOI: 10.1007/s11892-021-01378-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/13/2021] [Indexed: 12/18/2022]
Abstract
PURPOSE OF REVIEW To provide a highlight of the current state of cell therapy for the treatment of critical limb ischemia in patients with diabetes. RECENT FINDINGS The global incidence of diabetes is constantly growing with consequent challenges for healthcare systems worldwide. In the UK only, NHS costs attributed to diabetic complications, such as peripheral vascular disease, amputation, blindness, renal failure, and stroke, average £10 billion each year, with cost pressure being estimated to get worse. Although giant leaps forward have been registered in the scope of early diagnosis and optimal glycaemic control, an effective treatment for critical limb ischemia is still lacking. The present review aims to provide an update of the ongoing work in the field of regenerative medicine. Recent advancements but also limitations imposed by diabetes on the potential of the approach are addressed. In particular, the review focuses on the perturbation of non-coding RNA networks in progenitor cells and the possibility of using emerging knowledge on molecular mechanisms to design refined protocols for personalized therapy. The field of cell therapy showed rapid progress but has limitations. Significant advances are foreseen in the upcoming years thanks to a better understanding of molecular bottlenecks associated with the metabolic disorders.
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Affiliation(s)
- Y Gu
- Bristol Medical School, Translational Health Sciences, University of Bristol, Upper Maudlin Street, Bristol, BS2 8HW, UK
| | - A Rampin
- Laboratory of Cardiovascular Research, IRCCS, MultiMedica, Milan, Italy
| | - V V Alvino
- Bristol Medical School, Translational Health Sciences, University of Bristol, Upper Maudlin Street, Bristol, BS2 8HW, UK
| | - G Spinetti
- Laboratory of Cardiovascular Research, IRCCS, MultiMedica, Milan, Italy
| | - P Madeddu
- Bristol Medical School, Translational Health Sciences, University of Bristol, Upper Maudlin Street, Bristol, BS2 8HW, UK.
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78
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Zhu H, Ding J, Chong X, Ji C, Zhang C, Teng F, Gu Y, Qian X, Yang Z, Shen L, Gao J. 2P Molecular imaging evaluation of a novel Claudin18.2 specific monoclonal antibody labeled with radionuclide. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.01.012] [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: 11/16/2022] Open
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79
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Zhu P, Wu Y, Gu Y, Li C. JAB1 Promotes High Glucose-Induced Inflammation and Extracellular Matrix Deposition in Glomerular Mesangial Cells by Regulating Angiopoietin-Like Protein 2. Folia Biol (Praha) 2021; 67:191-198. [PMID: 35439852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Diabetic or hyperglycaemic conditions stimulate the inflammatory response, excessive accumulation of extracellular matrix, and result in glomerulosclerosis, a scarring process of diabetic nephropathy. c-Jun activation domain-binding protein 1 (JAB1) functions as a regulator of pathways involved in cellular apoptosis and proliferation. The role of JAB1 in diabetic nephropathy was investigated in this study. Firstly, glomerular mesangial cells (GMCs) were treated with high glucose, and high glucose conditions induced up-regulation of JAB1 in the GMCs. Moreover, IL-6, TNF-α, MCP-1, and IL-1β were also elevated in high glucose-induced GMCs. Secondly, silencing of JAB1 reduced the levels of IL-6, TNF-α, MCP-1, and IL-1β in high glucose-induced GMCs. In addition, silencing of JAB1 attenuated the high glucose-induced decrease of superoxide dismutase (SOD) and the increase of reactive oxygen species (ROS) and malondialdehyde (MDA). The increased TGF-β1, collagen I, collagen IV, and fibronectin levels in high glucose-induced GMCs were restored by knockdown of JAB1. Thirdly, angiopoietin-like protein 2 (ANGPTL2) expression was reduced by JAB1. Over-expression of ANGPTL2 weakened the JAB1 silence-induced decrease of IL-6, TNF-α, MCP-1, IL-1β, TGF-β1, collagen I, collagen IV, and fibronectin. In conclusion, silencing of JAB1 reduced extracellular matrix deposition and suppressed inflammation in high glucose-induced GMCs through down-regulation of ANGPTL2.
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Affiliation(s)
- P Zhu
- Department of General Practice, Shanghai International Medical Center, Shanghai, China
| | - Y Wu
- Department of Endocrinology, Shanghai International Medical Center, Shanghai, China
| | - Y Gu
- Department of Internal Medicine, Shanghai International Medical Center, Shanghai, China
| | - C Li
- Department of General Practice, Shanghai International Medical Center, Shanghai, China
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80
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Fang H, Li R, Gu Y, Fei Y, Jin K, Chen Y, Cao Y, Liu X, Lv K, Wang J, Yu K, Lin C, Liu H, Li H, He H, Zhang W, Zhang H, Shen Z. Intratumoral interleukin-9 delineates a distinct immunogenic class of gastric cancer patients with better prognosis and adjuvant chemotherapeutic response. Oncoimmunology 2020; 9:1856468. [PMID: 33354409 PMCID: PMC7738302 DOI: 10.1080/2162402x.2020.1856468] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Interleukin-9 (IL-9) is a T cell cytokine that is associated with inflammation and allergy, but the expression level of IL-9 in gastric cancer and its clinical significance are less well established. Our study aims to uncover the critical role of IL-9 in the progression of gastric cancer. Here, a total of 453 patients with gastric cancer undergoing curative resection were enrolled for immunohistochemical analyses, and Kaplan-Meier analysis was conducted to compare overall survival of patients in different subgroups. We further investigated the correlation between IL-9 expression and functional status of intratumoral CD8+ T cells by means of Flow cytometry. Moreover, in vitro study was preformed to further explore the influence of IL-9 on anti-tumor immunity. Results indicated that gastric cancer patients with high IL-9 expression showed improved overall survival and gained more benefit from 5-fluorouracil-based adjuvant chemotherapy (ACT). High IL-9 expression was associated with increased numbers and elevated function of intratumoral CD8+ T cells. In vitro study revealed that recombinant human IL-9 (rhIL-9) exhibit anti-tumor activity via enhancing the function of intratumoral CD8+ T cells. Moreover, we found rhIL-9 could augment the efficacy of Pembrolizumab in gastric cancer. In summary, these results suggest that IL-9 expression could act as an independent predictor for overall survival and ACT response and enhancing IL-9 signaling might represent an important therapeutic strategy in gastric cancer.
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Affiliation(s)
- H Fang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - R Li
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Y Gu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yuchao Fei
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Kaifeng Jin
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Yifan Chen
- Department of Immunology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Yifan Cao
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xin Liu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Kunpeng Lv
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Jieti Wang
- Department of Gastric Surgery, Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Kuan Yu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chao Lin
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hao Liu
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - He Li
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hongyong He
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Weijuan Zhang
- Department of Immunology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Heng Zhang
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhenbin Shen
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
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Chen W, Wang Y, Song W, Yi W, Qi T, Ma X, Liu L, Gu Y, Zhao Y, Sun Y. Exercise stress global longitudinal strain echocardiography can detect subclinical cardiac dysfunction and assist in risk stratification in children with Kawasaki disease: a 3-year follow-up study. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0121] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Global longitudinal strain (GLS) echo has been regarded as a sensitive and reproducible indicator for detection of subclinical cardiac dysfunction in children with Kawasaki disease (KD), but whether it can assist in differentiating KD patients with different severity of coronary artery lesions (CALs) has been rarely reported. The purpose of this study was to determine the feasibility of GLS derived from rest and exercise stress echo in risk stratification in patients with KD.
Methods
43 children with KD and 50 healthy controls were enrolled. KDs was divided into 3 groups according to the severity of CALs based on Z score, which was measured at the 3-year follow-up, G1 = KD without CALs (Z<2), G2 = KD with mild CALs (2≤Z<5), G3 = KD with severe CALs (Z≥5). Both group underwent echo at the onset of KD diagnosis and at the 3 years' follow-up, including: diameter of LA and LV, thickness of LVPW and IVS, LVFS, LVEF, and rest GLS (GLSrest). Both group also accomplished the exercise stress echo at the 3 years' follow-up, who squatted quickly to reach target heart rate and stress GLS (GLSstress) was recorded. Patients in G3 underwent a CMR examination, including LGE, to detect myocardial ischemia or infarction.
Results
38 KDs and 50 HCs had normal exercise tolerance. There were 18, 8, and 12 patients in G1, G2, and G3, respectively. LA, LV, LVPW, IVS and LVEF, were not significantly different in the KDs at the onset and 3-year follow-up, and so did that between KDs and HCs (all p>0.05). Both GLSrest and GLSstress in the KDs were significantly decreased compared with HCs (GLSrest: −17.2±9.1% vs. −22.3±0.7%, p<0.01; GLSstress: −20.7±3.5% vs. −27.7±0.7%, p<0.01, seen in Fig.1A, B). However, there were no significant difference in GLSrest among 3 subgroups of KDs (G1: −18.0±10.0%; G2: −19.7±1.2%; G3: 14.4±10.4%; all p>0.05, seen in Fig.1C). GLSstress in the G3 decreased significantly compared with that in G1 and G2 (G3 vs. G1: −16.8±2.6% vs. −22.8±1.9%, p<0.01; G3 vs. G2: −16.8±2.6% vs. −22.1±2.5%, p<0.01, seen in Fig. 1D). GLSrest had no correlation with Z score (r=0.08, p=0.62), but GLSstress correlated well with Z score (r=0.70, p<0.01). 8 of 12 (67%) patients in the G3 underwent CMR and 6 of 8 (75%) were found endomyocardial enhancement on LGE, which indicated myocardial infarction corresponding to the territory of abnormal coronary arteries (seen in Fig. 2).
Conclusions
GLS derived from rest and exercise stress speckle-tracking echo can detect subclinical cardiac dysfunction in KD patients with normal LV systolic function by conventional measurements, but rest GLS could not assist in differentiating KD patients with different severity of CALs. Exercise stress GLS, which correlated well with Z score, has the potential in risk stratification in children with KD, and thus may provide prognostic value in multidisciplinary treatment strategy.
Statistics and echo, CMR imaging
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- W Chen
- 1st Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Y Wang
- 1st Affiliated Hospital of Kunming Medical University, Kunming, China
| | - W.J Song
- 1st Affiliated Hospital of Kunming Medical University, Kunming, China
| | - W.F Yi
- 1st Affiliated Hospital of Kunming Medical University, Kunming, China
| | - T.F Qi
- 1st Affiliated Hospital of Kunming Medical University, Kunming, China
| | - X.J Ma
- 1st Affiliated Hospital of Kunming Medical University, Kunming, China
| | - L.P Liu
- 1st Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Y Gu
- 1st Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Y Zhao
- 1st Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Y Sun
- 1st Affiliated Hospital of Kunming Medical University, Kunming, China
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Jiang D, Liu H, Zhu G, Li X, Fan L, Yu Z, Wang S, Rhen J, Yin Y, Gu Y, Xu X, Fisher E, Ge J, Xu Y, Pang J. PHACTR1, a pro-atherosclerotic mechanosensitive PPARgamma corepressor in endothelial cells. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3763] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Numerous genome-wide association studies revealed that SNPs at phosphatase and actin regulator 1 (PHACTR1) locus are strongly correlated with coronary artery disease (CAD). However, the mechanism linking these variants to CAD remains uncertain.
Purpose
We studied the biological functions and molecular mechanisms of PHACTR1 in atherosclerosis.
Methods and results
Analysis of GTEx database showed that CAD-related SNPs in PHACTR1 are cis-eQTLs for PHACTR1 in arteries. Therefore, we generated Phactr1 knockout mice and crossed them with apolipoprotein E-deficient (ApoE−/−) mice to induce atherosclerosis by high-fat/high-cholesterol (HF-HC) diet. Phactr1 deficiency significantly inhibited atherosclerosis with decreased inflammatory cell infiltration. Western blot showed that PHACTR1 was restricted to endothelial cells (ECs) in mice. Mechanistically, RNAseq of aortic ECs revealed that the major molecular function of PHACTR1 was transcriptional regulation. PPARγ/RXRα was the top transcription factor, and PPARγ target gene expression substantially increased in Phactr1−/− mice. Moreover, we generated endothelial cell specific Phactr1−/−, ApoE−/− mice and found decreased atherosclerotic plaque area in aortic sinus. In vitro, PHACTR1 associated with PPARγ and inhibited PPARγ transcriptional activity. The inhibitory effect of PHACTR1 on PPARγ required its shuttling from cytosol to nucleus triggered by disturbed flow, a well-established pro-atherosclerotic stimulus.
Conclusion
Our results identified PHACTR1 as a mechanosensitive corepressor of PPARγ in ECs to promote atherosclerosis. Endothelial PHACTR1 is a potential therapeutic target for atherosclerosis treatment.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): National Natural Science Foundation of China (NSFC), China Postdoctoral Science Foundation (CPSF)
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Affiliation(s)
- D Jiang
- Tongji University School of Medicine, Department of Cardiology, Pan-vascular Research Institute, Shanghai Tenth People's Hospital, Shanghai, China
| | - H Liu
- Tongji University School of Medicine, Department of Cardiology, Pan-vascular Research Institute, Shanghai Tenth People's Hospital, Shanghai, China
| | - G Zhu
- Tongji University School of Medicine, Department of Cardiology, Pan-vascular Research Institute, Shanghai Tenth People's Hospital, Shanghai, China
| | - X Li
- Tongji University School of Medicine, Department of Cardiology, Pan-vascular Research Institute, Shanghai Tenth People's Hospital, Shanghai, China
| | - L Fan
- Tongji University School of Medicine, Department of Cardiology, Pan-vascular Research Institute, Shanghai Tenth People's Hospital, Shanghai, China
| | - Z Yu
- Tongji University School of Medicine, Department of Cardiology, Pan-vascular Research Institute, Shanghai Tenth People's Hospital, Shanghai, China
| | - S Wang
- University of Rochester School of Medicine and Dentistry, Aab Cardiovascular Research Institute and Department of Medicine, Rochester, United States of America
| | - J Rhen
- University of Rochester School of Medicine and Dentistry, Aab Cardiovascular Research Institute and Department of Medicine, Rochester, United States of America
| | - Y Yin
- Tongji University School of Medicine, Department of Cardiology, Pan-vascular Research Institute, Shanghai Tenth People's Hospital, Shanghai, China
| | - Y Gu
- Shanghai Naturethink Life Science&Technology Co., Itd, Shanghai, China
| | - X Xu
- University of Rochester School of Medicine and Dentistry, Aab Cardiovascular Research Institute and Department of Medicine, Rochester, United States of America
| | - E Fisher
- New York University School of Medicine, Division of Cardiology, Department of Medicine, New York, United States of America
| | - J Ge
- Tongji University School of Medicine, Department of Cardiology, Pan-vascular Research Institute, Shanghai Tenth People's Hospital, Shanghai, China
| | - Y Xu
- Tongji University School of Medicine, Department of Cardiology, Pan-vascular Research Institute, Shanghai Tenth People's Hospital, Shanghai, China
| | - J Pang
- University of Rochester School of Medicine and Dentistry, Aab Cardiovascular Research Institute and Department of Medicine, Rochester, United States of America
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Gu Y, Chen X, Wang D, Ding M, Xue L, Zhen F, Xu J, Wang M, Li Y, Sun N, Liu C, Xu L, Wang Y, Luo J. 175P A study of neoadjuvant sintilimab combined with triplet chemotherapy of lipo-paclitaxel, cisplatin, and S-1 for resectable esophageal squamous cell carcinoma (ESCC). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.196] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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84
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Avolio E, Thomas A, Dang Z, Faulkner A, Gu Y, Beltrami A, Carrizzo A, Maciag A, Ciaglia E, Ferrario A, Damato A, Spinetti G, Vecchione C, Puca A, Madeddu P. Rescue of cardiac function in obese type-2 diabetic mice by transfer of a human longevity gene. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3653] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Healthy longevity is the result of the interaction between favourable environment and unique genetic makeup. We showed that horizontal transfer of a longevity-associated gene variant (LAV-BPIFB4) improves endothelial function and accelerates the recovery from ischemia.
Purpose
To determine if the benefit of LAV-BPIFB4 gene therapy can be extended to diabetic cardiomyopathy.
Methods and results
We confirmed that human diabetic patients with heart failure (n=13) show a decreased cardiac expression of BPIFB4 compared with healthy subjects (n=10). Obese db/db mice received a systemic injection of adeno-associated viral vector (AAV9)-LAV-BPIFB4, AAV9-wild type (WT)-BPIFB4 (both 100 μL at 1×1012 GC/mL) or vehicle before the onset of cardiomyopathy, and were euthanised four weeks later for histological, metabolic and transcriptional analyses. Echocardiographic evaluation (n=8/group), performed at baseline and after gene therapy, showed that LAV-BPIFB4 treatment, despite not resolving hyperglycaemia, improved left ventricular function compared with the other groups. Histological analyses of the hearts (n=5 to 10/group) revealed that LAV-BPIFB4 reduced myocardial fibrosis and increased angiogenesis compared with vehicle and WT-hearts; moreover, LAV increased the expression of the alpha-isoform of the cardiac myosin heavy chain, which is associated with a superior cardiomyocyte contractility. Interestingly, LAV-BPIFB4 treatment induced an increase in cardiac SDF1 expression compared with WT and vehicle, despite the mechanism linking the two events is still unknown. The oral administration of the CXCR4 antagonist AMD-070, given at 2 mg/kg/day for four weeks, abolished several of the beneficial effects exerted by the LAV-BPIFB4 therapy in the obese diabetic mice, as assessed by echocardiography and histology (n=7/group).
At the molecular level, next-generation RNA sequencing (n=3 to 4 /group) showed 8 genes were differentially expressed by LAV-BPIFB4-hearts compared with vehicle-hearts. These genes are associated with mitochondrial and metabolic functions. Among them, changes in the UCP3, HMGCS2, CS, ATPB and TOMM20 expression were also validated at the protein level by western blotting. Lipidomics using ultrahigh-performance liquid chromatography-mass spectrometry (n=6 or 7/group) showed 63 metabolites differentially expressed by LAV-BPIFB4- compared with vehicle-hearts, with only 3 (two cardiolipins and one glycerophospholipid) returning close to the non-diabetic phenotype following LAV-BPIFB4 treatment.
Conclusions
This study newly shows the possibility of transferring the benefit of salutary polymorphic gene variants to protect the cardiovascular system from metabolic pressure. Rather than combating pathogenic mechanisms, the strategy activates alternative pathways overriding disease risk factors.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): British Heart Foundation project grant “Longevity-associated BPIFB4 gene therapy for treatment of ischemic disease”
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Affiliation(s)
- E Avolio
- University of Bristol, Bristol Medical School, Bristol, United Kingdom
| | - A Thomas
- University of Bristol, Bristol Medical School, Bristol, United Kingdom
| | - Z Dang
- University of Bristol, Bristol Medical School, Bristol, United Kingdom
| | - A Faulkner
- University of Bristol, Bristol Medical School, Bristol, United Kingdom
| | - Y Gu
- University of Bristol, Bristol Medical School, Bristol, United Kingdom
| | - A.P Beltrami
- University of Udine, Department of Pathology, Udine, Italy
| | - A Carrizzo
- Irccs I.N.M. Neuromed, Department of Vascular Physiopathology, Pozzilli, Italy
| | - A Maciag
- IRCCS - MultiMedica, Cardiovascular Department, Milano, Italy
| | - E Ciaglia
- University of Salerno, Department of Medicine, Salerno, Italy
| | - A Ferrario
- IRCCS - MultiMedica, Cardiovascular Department, Milano, Italy
| | - A Damato
- Irccs I.N.M. Neuromed, Department of Vascular Physiopathology, Pozzilli, Italy
| | - G Spinetti
- IRCCS - MultiMedica, Cardiovascular Department, Milano, Italy
| | - C Vecchione
- Irccs I.N.M. Neuromed, Department of Vascular Physiopathology, Pozzilli, Italy
| | - A.A Puca
- University of Salerno, Department of Medicine, Salerno, Italy
| | - P Madeddu
- University of Bristol, Bristol Medical School, Bristol, United Kingdom
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85
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Wen J, Chen J, Xu X, Liu D, Gu Y, Zhang J, Fan M. Abscopal Effects Induced by Radiotherapy Combined With Granulocyte-Macrophage Colony-Stimulating Factor in Patients With Recurrent or Refractory Metastatic Thymic Epithelial Tumors: A Single-Institution Experience. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1279] [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: 11/28/2022]
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86
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Hu XL, Gu Y, Wu DL, Lin ZX, Chen X. A nomogram to predict recurrence of RA patients in clinical remission within one year. Eur Rev Med Pharmacol Sci 2020; 24:9797-9806. [PMID: 33090382 DOI: 10.26355/eurrev_202010_23189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Some patients with rheumatoid arthritis (RA) will recur despite they have achieved clinical remission after treatment. The subclinical synovitis detected by ultrasonography (US) may be one of the main causes of the RA recurrence. The aim of this study is to establish a nomogram for predicting the outcome of RA patients with disease in clinical remission. PATIENTS AND METHODS One hundred and sixty-seven RA patients who achieved clinical remission and were willing to receive a 1-year follow-up were included in this study. Their demographic, clinical, and laboratory characteristics were recorded at baseline. 7-joints ultrasound (US7) synovitis score (simplified from US7 score) were evaluated at baseline and at the end of follow-up (or when RA recurrence confirmed). All patients were divided into recurrence group and non-recurrence group after the follow-up. Multivariable regression was applied to link the predictors that were significant at p < 0.05 in the univariate analysis and the recurrence of RA patients in clinical remission, which was served as the basis of the nomogram. RESULTS Fifty-one RA patients were included in the recurrence group and 116 patients in the non-recurrence group. All US7 synovitis scores in this study showed excellent reproducibility. Multivariable analysis revealed that high-titer positive anti-cyclic citrullinated peptide (anti-CCP), simplified clinical disease activity index (SDAI), baseline grayscale ultrasound (GSUS) score, and baseline power Doppler ultrasound (PDUS) score were the independent predictors for RA recurrence within 1 year. A nomogram incorporating the independent predictors was constructed to predict the risk of RA recurrence. The nomogram showed good discrimination (C-index=0.826) and good calibration. CONCLUSIONS The nomogram incorporating anti-CCP, SDAI, and subclinical synovitis helps to achieve complete remission and reduces the risk of short-term recurrence of RA patients.
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Affiliation(s)
- X-L Hu
- Department of Ultrasound Center, The Affiliated Hospital of Guizhou Medical University, Guiyang, China.
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87
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Zhang B, Gu Y, Jiang G. 28P Expression and prognosis characteristics of m6A RNA methylation regulators in breast cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.2187] [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: 10/23/2022] Open
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88
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Yu Y, Li A, Chen Y, Zhang W, Zhong H, Gu Y, Ou Q, Xia J, Lin D, Fu T, Li L, Liu R, Yao H. 1036P Patients’ sex and PD-L1 expression jointly associated with overall survival benefits of immune checkpoint inhibitors in cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1156] [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: 10/23/2022] Open
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89
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Xie L, Qin W, Gu Y, Pathak JL, Zeng S, Du M. Quality assessment of randomized controlled trial abstracts on drug therapy of periodontal disease from the abstracts published in dental Science Citation Indexed journals in the last ten years. Med Oral Patol Oral Cir Bucal 2020; 25:e626-e633. [PMID: 32388518 PMCID: PMC7473435 DOI: 10.4317/medoral.23647] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Accepted: 03/09/2020] [Indexed: 12/14/2022] Open
Abstract
Background Randomized controlled trials (RCTs) provide the highest level of evidence and are likely to influence clinical decision-making. This study evaluated the reporting quality of RCT abstracts on drug therapy of periodontal disease and assessed the associated factors.
Material and Methods The Pubmed database was searched for periodontal RCTs published in Science Citation Indexed (SCI) dental journals from 2010/01/01 to 2019/07/17. Information was extracted from the abstracts according to a modified Consolidated Standards of Reporting Trials (CONSORT) guideline checklist. The data was analyzed using descriptive statistical analysis and the statistical associations were examined using the linear regression analysis (P <0.05).
Results This study retrieved 1715 articles and 249 of them were finally included. The average overall CONSORT score was 15.6 ± 3.4, which represented 40.9% (±0.6) of CONSORT criteria filling. The reporting rate of some items (trial design, numbers analyzed, confidence intervals, intention-to-treat analysis or per-protocol analysis, harms, registration) was less than 30%. The adequate reporting rate of some items (participants, randomization, numbers analyzed, confidence intervals, intention-to-treat analysis or per protocol analysis) was no more than 4%. None of the abstracts reported funding. According to the multivariable linear regression results, number of authors (P=0.030), word count (P <0.001), continent (P=0.003), structured format (P <0.001), type of periodontal disease (P <0.001) and international collaboration (P=0.023) have a significant association with reporting quality.
Conclusions The quality of RCT abstracts on drug therapy of periodontal disease in SCI dental journals remained suboptimal. More efforts should be made to improve RCT abstracts reporting quality. Key words:Abstracts, RCT, drug therapy, periodontal disease, CONSORT, reporting quality assessment.
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Affiliation(s)
- L Xie
- 237 Luoyu road, Hongshan district Wuhan city, Hubei province, China
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90
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Gu Y, Zeng B, Sherma J. Development of quantitative HPTLC methods for dolutegravir, lamivudine, and tenofovir disproxil fumarate in a combination pharmaceutical product using a model process published earlier for transfer of minilab TLC screening methods to HPTLC-densitometry. ACTA CHROMATOGR 2020. [DOI: 10.1556/1326.2019.00689] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
High-performance thin-layer chromatography (HPLTC)–densitometry methods are described for the analysis of the anti(retro)virals dolutegravir (D), lamivudine (L), and tenofovir disoproxil fumarate (TDF) in a pharmaceutical tablet product. To the best of our knowledge, no previous quantitative planar chromatography method has been reported in the literature for this combination formulation. The method for L was transferred from a thin-layer chromatography (TLC) screening method published in the Global Pharma Health Fund (GPHF) Minilab Manual designed for identification of counterfeit and substandard drug products using a model process published earlier. D and TDF are not included in the list of drugs for which TLC screening methods are published for the Minilab, but HPTLC–densitometry procedures were developed for them using the transfer process guidelines. L was analyzed simultaneously with TDF on Merck Premium Purity silica gel 60 F plates using the mobile phase ethyl acetate–methanol–acetone–concentrated ammonium hydroxide (30:7:3:1) and densitometric scanning at 254 nm. D was analyzed on a second plate by scanning at 366 nm after chromatography with the chloroform–methanol–formic acid (32:8:2) mobile phase. Data for all three drugs are shown to meet the requirements of the model transfer process for calibration curve r values, assay of tablets relative to their label values, peak purity/peak identity tests, and validation by standard addition analysis of samples spiked at 50%, 100%, and 150% of the label value of active ingredients. A TLC screening method for TDF in the combination product was developed and published online with open access.
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Affiliation(s)
- Y. Gu
- Department of Chemistry, Lafayette College, Easton, PA, USA
| | - B. Zeng
- Department of Chemistry, Lafayette College, Easton, PA, USA
| | - J. Sherma
- Department of Chemistry, Lafayette College, Easton, PA, USA
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91
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Liu C, Yu Y, Fleming J, Wang T, Shen S, Wang Y, Fan L, Ma J, Gu Y, Chen Y. Severe COVID-19 cases with a history of active or latent tuberculosis. Int J Tuberc Lung Dis 2020; 24:747-749. [PMID: 32718415 DOI: 10.5588/ijtld.20.0163] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- C Liu
- Department of Thoracic Surgery, Shenyang Chest Hospital, Shenyang, Liaoning Province
| | - Y Yu
- Tuberculosis Laboratory, Shenyang Chest Hospital, Shenyang, Liaoning Province
| | - J Fleming
- Key Laboratory of RNA Biology and National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing
| | - T Wang
- Department of Anaesthesiology, Shenyang Chest Hospital, Shenyang, Liaoning Province
| | - S Shen
- Department of Respiratory Disorders, Shenyang Chest Hospital, Shenyang, Liaoning Province
| | - Y Wang
- Key Laboratory of RNA Biology and National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing
| | - L Fan
- Tuberculosis, Shenyang Chest Hospital, Shenyang, Liaoning Province
| | - J Ma
- Tuberculosis Laboratory, Shenyang Chest Hospital, Shenyang, Liaoning Province
| | - Y Gu
- Shenyang Sixth People's Hospital, Shenyang, Liaoning Province, China, ,
| | - Y Chen
- Tuberculosis, Shenyang Chest Hospital, Shenyang, Liaoning Province
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Xiao XB, Gu Y, Sun DL, Ding LY, Yuan XG, Jiang HW, Wu ZX. Effect of rituximab combined with chemotherapy on the expression of serum exosome miR-451a in patients with diffuse large b-cell lymphoma. Eur Rev Med Pharmacol Sci 2020; 23:1620-1625. [PMID: 30840285 DOI: 10.26355/eurrev_201902_17121] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim of this study was to investigate the influence of rituximab combined with chemotherapy on the expression of serum exosome micro ribonucleic acid 451a (miR-451a) in patients with diffuse large B-cell lymphoma (DLBCL), and to explore the possible underlying mechanism. PATIENTS AND METHODS 89 DLBCL patients (DLBCL group) receiving rituximab combined with chemotherapy were enrolled in this study. Meanwhile, 48 healthy controls (control group) were enrolled as well. Serum samples were collected from all patients before and after treatment, respectively. At the same time, blood samples of healthy people were collected, and serum exosome was extracted. Real-Time fluorescence-quantitative Polymerase Chain Reaction (qRT-PCR) was applied to measure the expression level of serum exosome miR-451a. Receiver operating characteristics (ROC) curve was used to evaluate the diagnostic efficiency of miR-451a. Statistical Product and Service Solutions (SPSS) 22.0 was employed for statistical analysis. Two-sided 95% confidence interval (CI) was used for all tests, and p<0.05 was considered statistically significant. RESULTS The expression level of miR-451a in the DLBCL group was significantly lower than that of the control group. The area under the ROC curve (AUC) for the diagnostic efficacy of serum exosome miR-451a for DCBCL was 0.7147. After treatment, the level of serum exosome miR-451a in patients was significantly increased, whereas was still lower than the normal level. The AUC of ROC for evaluating the effect of serum exosome miR-451a in DCBCL was 0.8038. CONCLUSIONS Serum exosome miR-451a has moderate diagnostic efficiency for DLBCL. Moreover, miR-451a can act as an indicator for evaluating the efficacy of rituximab combined with chemotherapy in the DLBCL treatment.
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Affiliation(s)
- X-B Xiao
- Department of Hematology, The Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.
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93
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Gustafson DR, Bäckman K, Scarmeas N, Stern Y, Manly JJ, Mayeux R, Gu Y. Dietary fatty acids and risk of Alzheimer's disease and related dementias: Observations from the Washington Heights-Hamilton Heights-Inwood Columbia Aging Project (WHICAP). Alzheimers Dement 2020; 16:1638-1649. [PMID: 32715635 PMCID: PMC8409226 DOI: 10.1002/alz.12154] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Introduction: High dietary intake of long chain, polyunsaturated fatty acids is associated with lower Alzheimer’s disease (AD) risk. Methods: Washington Heights-Hamilton Heights-Inwood Columbia Aging Project is a multiethnic, prospective observational study of aging and dementia among elderly (≥ 65 years). Dietary intake was measured using a food frequency questionnaire. Dietary short-, medium-, and long-chain fatty acid intakes were categorized by number of carbons and double bonds. Consensus AD diagnoses were made. Associations between AD risk and dietary fatty acid and cholesterol intakes were estimated using multivariable Cox proportional hazards regression models. Results: Of 2612 multiethnic women (67%) and men (baseline age 76.3 [6.4] years), 380 developed AD over an average 4.5 years follow-up. Lower risk of AD was associated with increasing intakes of docosahexaenoic acid (DHA; hazard ratio [HR] = 0.73, 95% confidence interval [CI]: 0.57 to 0.95, P = 0.018) and eicosapentaenoic acid (EPA; HR = 0.74, 95% CI: 0.57 to 0.95, P = 0.021), and longer AD-free survival (P < 0.05). Discussion: Higher intake of DHA and EPA are protective for AD.
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Affiliation(s)
- Deborah R Gustafson
- Department of Neurology, State University of New York Downstate Health Sciences University, Brooklyn, New York, USA.,Department of Neurochemistry and Psychiatry, Neuropsychiatric Epidemiology Unit, at the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - K Bäckman
- Department of Neurochemistry and Psychiatry, Neuropsychiatric Epidemiology Unit, at the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - N Scarmeas
- Department of Neurology, The Gertrude H. Sergievsky Center, Taub Institute for Research in Alzheimer's Disease and the Aging Brain, Columbia University and The New York Presbyterian Hospital, New York, New York, USA.,1st Department of Neurology, Aiginition Hospital, National and Kapodistrian University of Athens Medical School, Athens, Greece
| | - Y Stern
- Department of Neurology, The Gertrude H. Sergievsky Center, Taub Institute for Research in Alzheimer's Disease and the Aging Brain, Columbia University and The New York Presbyterian Hospital, New York, New York, USA
| | - J J Manly
- Department of Neurology, The Gertrude H. Sergievsky Center, Taub Institute for Research in Alzheimer's Disease and the Aging Brain, Columbia University and The New York Presbyterian Hospital, New York, New York, USA
| | - R Mayeux
- Department of Neurology, The Gertrude H. Sergievsky Center, Taub Institute for Research in Alzheimer's Disease and the Aging Brain, Columbia University and The New York Presbyterian Hospital, New York, New York, USA.,The Department of Epidemiology, Joseph P. Mailman School of Public Health, Columbia University, New York, New York, USA
| | - Y Gu
- Department of Neurology, The Gertrude H. Sergievsky Center, Taub Institute for Research in Alzheimer's Disease and the Aging Brain, Columbia University and The New York Presbyterian Hospital, New York, New York, USA.,The Department of Epidemiology, Joseph P. Mailman School of Public Health, Columbia University, New York, New York, USA
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Gu Y, Li K, Sun J, Zhang J. Characterization of CD19 + CD24 hi CD38 hi B cells in Chinese adult patients with atopic dermatitis. J Eur Acad Dermatol Venereol 2020; 34:2863-2870. [PMID: 32242984 DOI: 10.1111/jdv.16399] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 02/06/2020] [Accepted: 03/10/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND Atopic dermatitis (AD) is a chronic inflammatory skin disease. Human interleukin-10+ B cells (B10 cells) is one of regulatory B cells and is enriched in CD19+ CD24hi CD38hi B cells. A little is known about these cells in atopic dermatitis. OBJECTIVE To study CD19+ CD24hi CD38hi B cells and their clinical significance in Chinese adult patients with atopic dermatitis. METHODS Thirty-two adult patients with AD and nineteen healthy controls were enrolled. Peripheral blood mononuclear cells (PBMCs) were isolated and stained with fluorescein-conjugated monoclonal antibodies for CD19, CD24, CD27, CD38 and Annexin V. The stained PBMCs were analysed by flow cytometry. B10 cells were prepared by stimulating PBMCs with CpG, LPS and CD40L followed by restimulation with phorbol12-myristate 13-acetate (PMA) and ionomycin. Serum IL-10, B-cell-activating factor (BAFF) and a proliferation-inducing ligand (APRIL) levels were measured by using the ELISA. Apoptosis and proliferation of CD19+ CD24hi CD38hi B cells were measured by flow cytometry. 4/P-signal transducer and activator of transcription 3 (STAT3) and extracellular signal-regulated kinase 1/2 (Erk) phosphorylation were also studied. RESULTS The number of CD19+ CD24hi CD38hi B cells in patients with AD was similar to that in healthy controls. However, B10 cells were decreased in patients with AD. The proportion of B10 cells was negatively associated with blood basophil counts but not associated with disease activity. CD19+ CD24hi CD38hi B cells from AD patients were more susceptible to apoptosis upon stimulation with CpG, LPS and CD40L. B cells from AD patients showed lower STAT3 and Erk phosphorylation. CONCLUSIONS CD19+ CD24hi CD38hi B cells were unchanged in atopic dermatitis while B10 cells were decreased. The increased B-cell apoptosis, decreased STAT3 and Erk phosphorylation might contribute to these changes.
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Affiliation(s)
- Y Gu
- Department of Dermatology, Peking University People's Hospital, Beijing, China
| | - K Li
- Department of Dermatology, Peking University People's Hospital, Beijing, China
| | - J Sun
- Department of Dermatology, Peking University People's Hospital, Beijing, China
| | - J Zhang
- Department of Dermatology, Peking University People's Hospital, Beijing, China
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Lv Q, Gu Y, Qi Y, Liu Z, Ma GE. Effects of lentinan on NF-κB activity in the liver of burn rats with sepsis. Exp Ther Med 2020; 20:2279-2283. [PMID: 32765705 DOI: 10.3892/etm.2020.8955] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 01/13/2020] [Indexed: 12/14/2022] Open
Abstract
Effects of lentinan on nuclear factor-κB (NF-κB) activity in liver of burn rats with sepsis were investigated. To mimic the clinical sepsis after burn, rats were subjected to 30% full-thickness scald injury, followed by intraperitoneal (i.p.) injection of lipopolysaccharide (LPS). Seventy-two adult rats were randomly divided into six groups: the normal control group (n=12); the burn sepsis group (n=12); the burn sepsis with positive drugs; the burn sepsis with low-dose lentinan treatment group (50.0 mg/kg, n=12); the burn sepsis with middle-dose lentinan treatment group (100.0 mg/kg, n=12) and the burn sepsis with high-dose lentinan treatment group (200.0 mg/kg, n=12). Expression of NF-κB in the liver was measured with western blot analysis. The morphology of liver was evaluated with hematoxylin and eosin staining. The expression of NF-κB significantly increased in the liver of burn rats with sepsis. Compared with the burn sepsis group, lentinan treatment obviously reduced the damage of hepatic cell morphology, and decreased the activity of NF-κB significantly in the medium and high concentrations of lentinan treatment groups (P<0.05). Most importantly, treatment with lentinan was able to reverse the increased concentration of IL-4, IL-6, IL-10 and TNF-α in plasma which was induced by LPS. Lentinan treatment can significantly decrease the expression of NF-κB in the liver of burn rats with sepsis.
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Affiliation(s)
- Qianwen Lv
- The 15th Department, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100000, P.R. China
| | - Yunpeng Gu
- The 15th Department, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100000, P.R. China
| | - Yue Qi
- The 15th Department, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100000, P.R. China
| | - Zhenjun Liu
- The 15th Department, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100000, P.R. China
| | - Gui-E Ma
- The 15th Department, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100000, P.R. China
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Gu Y. Magnetic Properties, Corrosion Resistance and Crystallization Behavior of Nd-Fe-B Alloys. INT J ELECTROCHEM SC 2020. [DOI: 10.20964/2020.06.52] [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: 11/23/2022]
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Liu C, Jiang ZC, Shao CX, Zhang HG, Yue HM, Chen ZH, Ma BY, Liu WY, Huang HH, Yang J, Wang Y, Liu HY, Xu D, Wang JT, Yang JY, Pan HQ, Zou SQ, Li FJ, Lei JQ, Li X, He Q, Gu Y, Qi XL. [Preliminary study of the relationship between novel coronavirus pneumonia and liver function damage: a multicenter study]. Zhonghua Gan Zang Bing Za Zhi 2020; 28:107-111. [PMID: 32077660 DOI: 10.3760/cma.j.issn.1007-3418.2020.02.003] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Objective: To analyze the clinical characteristics of cases of novel coronavirus pneumonia and a preliminary study to explore the relationship between different clinical classification and liver damage. Methods: Consecutively confirmed novel coronavirus infection cases admitted to seven designated hospitals during January 23, 2020 to February 8, 2020 were included. Clinical classification (mild, moderate, severe, and critical) was carried out according to the diagnosis and treatment program of novel coronavirus pneumonia (Trial Fifth Edition) issued by the National Health Commission. The research data were analyzed using SPSS19.0 statistical software. Quantitative data were expressed as median (interquartile range), and qualitative data were expressed as frequency and rate. Results: 32 confirmed cases that met the inclusion criteria were included. 28 cases were of mild or moderate type (87.50%), and four cases (12.50%) of severe or critical type. Four cases (12.5%) were combined with one underlying disease (bronchial asthma, coronary heart disease, malignant tumor, chronic kidney disease), and one case (3.13%) was simultaneously combined with high blood pressure and malignant tumor. The results of laboratory examination showed that the alanine aminotransferase (ALT), aspartate aminotransferase (AST), albumin (ALB), and total bilirubin (TBil) for entire cohort were 26.98 (16.88 ~ 46.09) U/L and 24.75 (18.71 ~ 31.79) U/L, 39.00 (36.20 ~ 44.20) g/L and 16.40 (11.34 ~ 21.15) μmol/L, respectively. ALT, AST, ALB and TBil of the mild or moderate subgroups were 22.75 (16.31 ~ 37.25) U/L, 23.63 (18.71 ~ 26.50) U/L, 39.70 (36.50 ~ 46.10) g/L, and 15.95 (11.34 ~ 20.83) μmol/L, respectively. ALT, AST, ALB and TBil of the severe or critical subgroups were 60.25 (40.88 ~ 68.90) U/L, 37.00 (20.88 ~ 64.45) U/L, 35.75 (28.68 ~ 42.00) g/L, and 20.50 (11.28 ~ 25.00) μmol/L, respectively. Conclusion: The results of this multicenter retrospective study suggests that novel coronavirus pneumonia combined with liver damage is more likely to be caused by adverse drug reactions and systemic inflammation in severe patients receiving medical treatment. Therefore, liver function monitoring and evaluation should be strengthened during the treatment of such patients.
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Affiliation(s)
- C Liu
- COVID-19 study group, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - Z C Jiang
- COVID-19 study group, Ankang Central Hospital, Ankang 725000, China
| | - C X Shao
- COVID-19 study group, Lishui Central Hospital, Lishui 323000, China
| | - H G Zhang
- COVID-19 study group, The Affiliated Third Hospital of Jiangsu University, Zhenjiang 212021, China
| | - H M Yue
- Department of Respiratory and Critical Care Medicine, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - Z H Chen
- COVID-19 study group, The People's Hospital of Baoding, Baoding 071000, China
| | - B Y Ma
- COVID-19 study group, The People's Hospital of LinXia Hui Prefecture, Linxia 731100, China
| | - W Y Liu
- COVID-19 study group, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - H H Huang
- COVID-19 study group, Ankang Central Hospital, Ankang 725000, China
| | - J Yang
- COVID-19 study group, Lishui Central Hospital, Lishui 323000, China
| | - Y Wang
- COVID-19 study group, The Sixth People's Hospital of Shenyang, Shenyang 110006, China
| | - H Y Liu
- COVID-19 study group, The Sixth People's Hospital of Shenyang, Shenyang 110006, China
| | - D Xu
- COVID-19 study group, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - J T Wang
- COVID-19 study group, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - J Y Yang
- COVID-19 study group, The Sixth People's Hospital of Shenyang, Shenyang 110006, China
| | - H Q Pan
- COVID-19 study group, The Affiliated Third Hospital of Jiangsu University, Zhenjiang 212021, China
| | - S Q Zou
- COVID-19 study group, The Affiliated Third Hospital of Jiangsu University, Zhenjiang 212021, China
| | - F J Li
- COVID-19 study group, The People's Hospital of Baoding, Baoding 071000, China
| | - J Q Lei
- COVID-19 study group, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - X Li
- COVID-19 study group, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - Q He
- COVID-19 study group, The Third People's Hospital of Shenzhen, Shenzhen 518100, China
| | - Y Gu
- COVID-19 study group, The Sixth People's Hospital of Shenyang, Shenyang 110006, China
| | - X L Qi
- COVID-19 study group, The First Hospital of Lanzhou University, Lanzhou 730000, China
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98
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Abstract
Periodontitis is a bacteria-driven inflammatory destructive disease that leads to attachment loss, bone resorption, and even tooth loss. Accumulating studies revealed that macrophages might play an nonnegligible role during the processes of periodontitis. However, the underlying mechanism remains largely unknown. In this study, we found novel Akt2/JNK1/2/c-Jun and Akt2/miR-155-5p/DET1/c-Jun signaling pathways that regulated the polarization of macrophages and altered periodontal inflammatory status. Through hematoxylin and eosin, immunostaining, and immunofluorescence staining of clinical specimens, a higher number of M1 phenotype macrophage infiltration was found in periodontitis than in normal controls. Flow cytometry and immunofluorescence showed that overexpression of Akt2 in RAW 264.7 cells induced M1 macrophage polarization and decreased M2 polarization, while knockdown of Akt2 exerted an opposite effect. Furthermore, overexpression of Akt2 activated the JNK pathway and then increased the release of proinflammatory mediators, while knockdown of Akt2 downregulated the above genes accordingly. Importantly, the macrophage polarization and the subsequent alteration of pathway molecules induced by overexpression of Akt2 could be rescued by Akt2 and JNK inhibitors. Moreover, JNK inhibition could facilitate M2 polarization of macrophages. In a mouse periodontitis model, the novel signaling pathway as well as clinical phenotype was further verified. Inhibition of Akt2 facilitated macrophage M2 polarization and rescued the bone loss due to periodontitis. Collectively, we identified novel Akt2/JNK1/2/c-Jun and Akt2/miR-155-5p/DET1/c-Jun signaling pathways that regulate macrophage polarization and highlight that Akt2 inhibition promotes M2 polarization of macrophages and can be a novel potential candidate in the treatment of periodontitis.
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Affiliation(s)
- X. Wu
- Department of Orthodontics, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Haidian District, Beijing, China
| | - H. Chen
- Department of Orthodontics, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Haidian District, Beijing, China
| | - Y. Wang
- Central Laboratory, Peking University School and Hospital of Stomatology, Haidian District, Beijing, China
| | - Y. Gu
- Department of Orthodontics, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Haidian District, Beijing, China
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99
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Gu Y, Li K, Zhou Y, Zhang J. Chronic myeloid leukaemia in a patient with psoriasis following bimolane treatment. J Eur Acad Dermatol Venereol 2020; 34:e66-e67. [PMID: 31465597 DOI: 10.1111/jdv.15915] [Citation(s) in RCA: 1] [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: 12/31/2022]
Affiliation(s)
- Y Gu
- Department of Dermatology, Peking University People's Hospital, Beijing, China
| | - K Li
- Department of Dermatology, Peking University People's Hospital, Beijing, China
| | - Y Zhou
- Department of Hematology, Peking University People's Hospital, Beijing, China
| | - J Zhang
- Department of Dermatology, Peking University People's Hospital, Beijing, China
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100
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Palit A, King R, Gu Y, Pierrepont J, Hart Z, Elliott MT, Williams MA. Prediction and Visualisation of Bony Impingement for Subject Specific Total Hip Arthroplasty .. Annu Int Conf IEEE Eng Med Biol Soc 2020; 2019:2127-2131. [PMID: 31946321 DOI: 10.1109/embc.2019.8857861] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Bony impingement (BI) may contribute to restricted hip joint motion, and recurrent dislocation after total hip arthroplasty (THA), and therefore, should be avoided where possible. However, BI risk assessment is generally performed intra-operatively by surgeons, which is partially subjective and qualitative. Therefore, the aim of the study was to develop a method for identifying subject-specific BI, and subsequently, visualising BI area on native bone anatomy to highlight the amount of bone should be resected. Activity definitions and subject-specific bone geometries, constructed from CT scans, with planned implants were used as inputs for the method. For each activity, a conical clearance angle (CCA) was checked between femur and pelvis through simulation. Simultaneously, BI boundary and area were automatically calculated using ray intersection and region growing algorithm respectively. The potential use of the developed method was explained through a case study using an anonymised pre-THA patient data. Two pure (flexion, and extension) and two combined hip joint motions (internal and external rotation at flexion and extension respectively) were considered as activities. BI area were represented in two ways: (a) CCA specific where BI area for each activity with different CCAs was highlighted, (b) activity specific where BI area for all activities with a particular CCA was presented. Result showed that BI area between the femoral and pelvic parts was clearly identified so that the pre-operative surgical plan could be adjusted to minimise impingement. Therefore, this method could potentially be used to examine the effect of different preoperative plans and hip motion on BI, and to guide bony resection during THA surgery.
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