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Chen C, Luo D, Wang Z, Miao Y, Liu Q, Zhao T, Liu D. Complete chloroplast genomes of eight Artemisia species: Comparative analysis, molecular identification, and phylogenetic analysis. Plant Biol (Stuttg) 2024; 26:257-269. [PMID: 38169134 DOI: 10.1111/plb.13608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 11/13/2023] [Indexed: 01/05/2024]
Abstract
Artemisia L. is the largest genus in the Asteraceae, and well known for its high medicinal value. The morphological features of Artemisia species are similar, making taxonomic identification and evolutionary research difficult. We sequenced chloroplast genomes of eight Artemisia species, all of which are common adulterants of A. argyi. We used novel genetic data and compared these data to the published A. argyi chloroplast genome in to develop molecular markers for species identification and reconstructing phylogenetic relationships between Artemisia species. The eight chloroplast sequences were highly similar in gene order, content, and structure, encoding a total of 114 genes (82 protein-coding genes, 28 tRNAs, and four rRNAs). All species harboured similar repeat sequences and simple sequence repeats (SSRs), ranging from 47 to 49 and 38 to 40 repeats, respectively. In addition, we identified five hypervariable regions (rpl32-trnL, rps16-trnQ, petN-psbM, trnE-rpoB, and atpA-trnR) and ten variable coding genes (ycf1, psbG, rpl36, psaC, psaI, accD, psbT, ndhD, ndhE, and psbH), which can be used to develop chloroplast molecular markers. Finally, phylogenetic reconstructions based on six datasets produced similar topologies, revealing A. argyi is closely related to species often found as adulterants, as expected. Our research provides valuable new information on the evolution and phylogenetic relationships between Artemisia chloroplast genomes and identifies valuable molecular makers to distinguish it from closely related species.
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Affiliation(s)
- C Chen
- Hubei Shizhen Laboratory, Hubei University of Chinese Medicine, Wuhan, China
| | - D Luo
- Hubei Shizhen Laboratory, Hubei University of Chinese Medicine, Wuhan, China
| | - Z Wang
- Hubei Shizhen Laboratory, Hubei University of Chinese Medicine, Wuhan, China
| | - Y Miao
- Hubei Shizhen Laboratory, Hubei University of Chinese Medicine, Wuhan, China
| | - Q Liu
- Hubei Shizhen Laboratory, Hubei University of Chinese Medicine, Wuhan, China
| | - T Zhao
- Hubei Shizhen Laboratory, Hubei University of Chinese Medicine, Wuhan, China
| | - D Liu
- Hubei Shizhen Laboratory, Hubei University of Chinese Medicine, Wuhan, China
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Wang G, Luo D, Song F, Sun Z, Dong P, Zhu Z. Treatment of auricular pseudocysts using enhanced negative drainage: a prospective study of 21 cases. J Laryngol Otol 2024; 138:349-352. [PMID: 37586785 DOI: 10.1017/s0022215123001342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Abstract
OBJECTIVE Auricular pseudocysts are rare, painless, benign intracartilaginous cysts of the auricle that are not lined by epithelium and have no known aetiology. METHOD This was a prospective study conducted in an ENT department from January 2020 to June 2022. In 21 patients, complete aspiration of the pseudocyst with enhanced negative drainage was performed. They were followed for a minimum of six months. RESULTS All patients completely responded to the negative drainage treatment. No cases of recurrence or obvious deformities were observed. CONCLUSION Aspiration with intensified negative drainage was associated with a positive response in patients with auricular pseudocysts. Complete resolution of the swelling can be achieved without any serious complications. Thus, it appears to be a simple and effective method for managing the condition.
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Affiliation(s)
- G Wang
- Department of Otolaryngology, Shanghai General Hospital, Jiaotong University School of Medicine, Shanghai City, China
| | - D Luo
- Department of Otolaryngology, Shanghai General Hospital, Jiaotong University School of Medicine, Shanghai City, China
| | - F Song
- Department of Otolaryngology, Shanghai General Hospital, Jiaotong University School of Medicine, Shanghai City, China
| | - Z Sun
- Department of Otolaryngology, Shanghai General Hospital, Jiaotong University School of Medicine, Shanghai City, China
| | - P Dong
- Department of Otolaryngology, Shanghai General Hospital, Jiaotong University School of Medicine, Shanghai City, China
| | - Z Zhu
- Department of Otolaryngology, Shanghai General Hospital, Jiaotong University School of Medicine, Shanghai City, China
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Yu W, Luo D, Yang J, Yuan M, Yang Y, Gao Y. Immediate implant placement for chronic peri-apical periodontitis in the molar region: a randomised controlled trial. Int J Oral Maxillofac Surg 2024; 53:223-230. [PMID: 37673734 DOI: 10.1016/j.ijom.2023.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 03/03/2023] [Accepted: 08/02/2023] [Indexed: 09/08/2023]
Abstract
The aim of this study was to evaluate the feasibility of immediate implantation for chronic peri-apical periodontitis in the molar region. Seventy-four molars were selected and allocated randomly to two groups. The experimental group (n = 38) received immediate implantation by flap surgery and the control group (n = 36) received delayed implantation. CBCT was performed immediately after surgery (T1) and 12 months after the permanent repair (T3). The implant survival rate at T3 was 100% in both groups. There was no significant difference in buccal or lingual vertical marginal bone loss between the groups (P = 0.515, P = 0.736). However, the buccal horizontal margin bone loss was significantly greater in the experimental group: 0.98 ± 0.34 mm vs 0.77 ± 0.27 mm in the control group (P = 0.003). In the experimental group, the highest point of buccal and lingual implant-bone contact increased at T3. The buccal and lingual jump gap widths were 3.21 ± 1.10 mm and 2.92 ± 1.01 mm at T1, and CBCT showed no jump gap around the implants at T3. The clinical outcomes showed immediate implantation to be feasible for chronic peri-apical periodontitis in the molar region.
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Affiliation(s)
- W Yu
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, PR China; School of Stomatology of Qingdao University, Qingdao, Shandong, PR China
| | - D Luo
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, PR China; School of Stomatology of Qingdao University, Qingdao, Shandong, PR China
| | - J Yang
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, PR China.
| | - M Yuan
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, PR China; School of Stomatology of Qingdao University, Qingdao, Shandong, PR China
| | - Y Yang
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, PR China; School of Stomatology of Qingdao University, Qingdao, Shandong, PR China
| | - Y Gao
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, PR China; School of Stomatology of Qingdao University, Qingdao, Shandong, PR China
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Pang N, Ding M, Yang H, Zhong Q, Zheng L, Luo D, Yao Y. Iron overload causes macrophages to produce a pro-inflammatory phenotype in the synovium of hemophiliac arthritis via the acetyl-p53 pathway. Haemophilia 2024; 30:195-203. [PMID: 38058260 DOI: 10.1111/hae.14905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 11/09/2023] [Accepted: 11/28/2023] [Indexed: 12/08/2023]
Abstract
AIM Haemophiliac arthritis (HA) is caused by spontaneous intra-articular hemorrhage and repeated intra-articular hematomas, leading to iron overload, which, in turn, induces M1 macrophage polarisation and inflammatory cytokine secretion, resulting in synovitis. Here, we explored the mechanism by which iron overload in HA induces the polarisation of M1 macrophages, providing a new approach for the treatment of HA synovitis. METHODS The synovium from the knee joints of normal amputees and patients with HA was collected. Pathological changes in the synovial tissues were analysed using hematoxylin and eosin staining. Iron tissue deposition was evaluated using the iron assay kit and Prussia Blue staining, while macrophage phenotype was determined using immunofluorescence. The levels of pro-inflammatory cytokines and p53 acetylation were determine using western blotting. An in vitro iron overload model was established by inducing THP-1 macrophages with ferric ammonium citrate, and the involvement of acetylated p53 in M1 macrophage polarisation was investigated. RESULTS Compared to control samples, the iron content in the synovium of patients with HA was significantly increased. The protein levels of M1 macrophage markers, pro-inflammatory cytokines, and acetylated p53, were also significantly elevated in the synovial tissues of patients with HA. Similar results were observed in the in vitro iron overload model. Furthermore, the inhibition of p53 acetylation in vitro reversed these iron overload-induced effects. CONCLUSION In patients with HA, iron overload induced synovial p53 acetylation, leading to macrophage polarisation toward the M1 phenotype and increased inflammatory cytokine secretion, resulting in synovitis. HIGHLIGHTS Synovial iron overload is associated with changes in P53 acetylation in hemophiliac arthritis (HA). Acetylated p53, a known regulator of macrophage polarization, is highly expressed in HA synovium, suggesting a potential role in M1 polarization. HA synovial macrophages predominantly polarize into the pro-inflammatory M1 phenotype, secreting elevated levels of pro-inflammatory cytokines.
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Affiliation(s)
- Nanyu Pang
- Department of Orthopaedics, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Mingyang Ding
- Department of Orthopaedics, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Hu Yang
- Department of Orthopaedics, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Qigang Zhong
- Department of Orthopaedic Surgery, Ma Anshan People's Hospital, Ma Anshan, China
| | - Liujie Zheng
- Department of Orthopaedic Surgery, The Fourth Hospital of Wuhan, Wuhan, China
| | - Dasheng Luo
- Department of Orthopaedics, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yunfeng Yao
- Department of Orthopaedics, the Second Affiliated Hospital of Anhui Medical University, Hefei, China
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Zheng L, Han Z, Luo D, Li J, Pang N, Ding M, Ye H, Zhu K, Yao Y. IL-6, IL-1β and TNF-α regulation of the chondrocyte phenotype: a possible mechanism of haemophilic cartilage destruction. Hematology 2023; 28:2179867. [PMID: 36799502 DOI: 10.1080/16078454.2023.2179867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
OBJECTIVE Proinflammatory cytokines are considered to be one of the key causes of haemophilic cartilage destruction by inducing chondrocyte apoptosis and extracellular matrix degradation. However, few studies have focused on how proinflammatory cytokines regulate the phenotypic changes of chondrocytes, which may be an important factor in haemophilic cartilage degradation pathogenesis. More understanding is needed about the effect of proinflammatory cytokines on phenotypic changes of the chondrocyte. The objective of this study was to examine how IL-6, TNF-α and IL-1β regulate the chondrocyte phenotype, which may be an important factor in haemophilic cartilage degradation pathogenesis. METHODS HUM-iCell-s018 chondrocytes were treated with increasing concentrations of TNF-α, IL-6 or IL-1β (0, 1, 5, 10 ng/ml) for 24 h, then FGF23 and SOX9 expression was determined by qRT-PCR and WB, respectively. RESULTS We found that TNF-α, IL-6 and IL-1β induced FGF23 and suppressed SOX9 expression in chondrocytes in a dose-dependent manner. IL-1β had a stronger regulatory effect on FGF23, while TNF-α and IL-6 had stronger regulatory effects on SOX9. CONCLUSIONS These findings suggest that IL-6, IL-1β and TNF-α may be involved in haemophilic cartilage destruction pathogenesis by altering the chondrocyte phenotype through modulation of FGF23 and SOX9 gene expression.
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Affiliation(s)
- Liujie Zheng
- Department of Orthopaedic Surgery, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Zhiwei Han
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Dasheng Luo
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Jiale Li
- Department of Orthopaedic Surgery, Fuyang Hospital of Anhui Medical University, Fuyang, People's Republic of China
| | - Nanyu Pang
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Mingyang Ding
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Houlong Ye
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Keyan Zhu
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Yunfeng Yao
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, People's Republic of China
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Zheng L, Yao Y, Luo D, Han Z, Zhang X, Pang N, Ding M, Ye H, Zhu K, Yi W. Iron regulates chondrocyte phenotype in haemophilic cartilage through the PTEN/PI3 K/AKT/FOXO1 pathway. Hematology 2023; 28:2240585. [PMID: 37493406 DOI: 10.1080/16078454.2023.2240585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023] Open
Abstract
OBJECTIVE Our previous study demonstrated that iron overload could lead to haemophilic cartilage destruction by changing chondrocyte phenotype. This change was caused by iron's effect on chondrocyte expression of FGF23 and SOX9, in addition to iron-induced chondrocyte apoptosis and cartilage extracellular matrix degradation. However, the underlying mechanisms remain unclear. This study aimed to determine the mechanism by which iron influences chondrocyte phenotype in the pathogenesis of haemophilic cartilage destruction. METHODS The expression of the PTEN/PI3K/AKT/FOXO1 signal pathway in the articular cartilage of patients with haemophilic arthritis (HA) or osteoarthritis (OA) was determined using western blot (WB). Additionally, we quantified the expression of iron-induced PTEN, PI3K, p-PI3K, AKT, p-AKT, FOXO1, and p-FOXO1 in primary human normal chondrocyte cells (HUM-iCell-s018) using WB. RESULTS We found that compared to that in patients with OA, the expression of PTEN, PI3K, AKT, and FOXO1 in the articular cartilage of patients with HA was up-regulated, while the expression of p-PI3K, p-AKT, and p-FOXO1 was down-regulated. Additionally, iron increased the expression of PTEN, PI3K, AKT, and FOXO1 and suppressed that of p-PI3K, p-AKT, and p-FOXO1 in chondrocytes in a dose-dependent manner. CONCLUSIONS Our findings demonstrated that iron was involved in the pathogenesis of haemophilic cartilage destruction by affecting chondrocyte phenotype through the inhibition of the PTEN/PI3K/AKT/FOXO1 pathway.
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Affiliation(s)
- Liujie Zheng
- Department of Orthopaedic Surgery, The Fourth Hospital of Wuhan, Wuhan, People's Republic of China
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Yunfeng Yao
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Dasheng Luo
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Zhiwei Han
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Xin Zhang
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Nanyu Pang
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Mingyang Ding
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Houlong Ye
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Keyan Zhu
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Wenkai Yi
- Department of Orthopaedic Surgery, The Fourth Hospital of Wuhan, Wuhan, People's Republic of China
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Duncan CJR, Kaemingk M, Li WH, Andorf MB, Bartnik AC, Galdi A, Gordon M, Pennington CA, Bazarov IV, Zeng HJ, Liu F, Luo D, Sood A, Lindenberg AM, Tate MW, Muller DA, Thom-Levy J, Gruner SM, Maxson JM. Multi-scale time-resolved electron diffraction: A case study in moiré materials. Ultramicroscopy 2023; 253:113771. [PMID: 37301082 DOI: 10.1016/j.ultramic.2023.113771] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 05/09/2023] [Accepted: 05/26/2023] [Indexed: 06/12/2023]
Abstract
Ultrafast-optical-pump - structural-probe measurements, including ultrafast electron and x-ray scattering, provide direct experimental access to the fundamental timescales of atomic motion, and are thus foundational techniques for studying matter out of equilibrium. High-performance detectors are needed in scattering experiments to obtain maximum scientific value from every probe particle. We deploy a hybrid pixel array direct electron detector to perform ultrafast electron diffraction experiments on a WSe2/MoSe2 2D heterobilayer, resolving the weak features of diffuse scattering and moiré superlattice structure without saturating the zero order peak. Enabled by the detector's high frame rate, we show that a chopping technique provides diffraction difference images with signal-to-noise at the shot noise limit. Finally, we demonstrate that a fast detector frame rate coupled with a high repetition rate probe can provide continuous time resolution from femtoseconds to seconds, enabling us to perform a scanning ultrafast electron diffraction experiment that maps thermal transport in WSe2/MoSe2 and resolves distinct diffusion mechanisms in space and time.
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Affiliation(s)
- C J R Duncan
- Cornell Laboratory for Accelerator-Based Sciences and Education, Cornell University, Ithaca, NY 14850, USA.
| | - M Kaemingk
- Cornell Laboratory for Accelerator-Based Sciences and Education, Cornell University, Ithaca, NY 14850, USA
| | - W H Li
- Cornell Laboratory for Accelerator-Based Sciences and Education, Cornell University, Ithaca, NY 14850, USA
| | - M B Andorf
- Cornell Laboratory for Accelerator-Based Sciences and Education, Cornell University, Ithaca, NY 14850, USA
| | - A C Bartnik
- Cornell Laboratory for Accelerator-Based Sciences and Education, Cornell University, Ithaca, NY 14850, USA
| | - A Galdi
- Cornell Laboratory for Accelerator-Based Sciences and Education, Cornell University, Ithaca, NY 14850, USA
| | - M Gordon
- Cornell Laboratory for Accelerator-Based Sciences and Education, Cornell University, Ithaca, NY 14850, USA
| | - C A Pennington
- Cornell Laboratory for Accelerator-Based Sciences and Education, Cornell University, Ithaca, NY 14850, USA
| | - I V Bazarov
- Cornell Laboratory for Accelerator-Based Sciences and Education, Cornell University, Ithaca, NY 14850, USA
| | - H J Zeng
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
| | - F Liu
- Department of Chemistry, Stanford University, Stanford, CA 94305, USA
| | - D Luo
- SLAC National Accelerator Laboratory, Menlo Park, CA 94205, USA
| | - A Sood
- Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08540, USA; Princeton Materials Institute, Princeton University, Princeton, NJ 08540, USA
| | - A M Lindenberg
- Department of Materials Science and Engineering, Stanford University, Stanford, CA 94305, USA
| | - M W Tate
- Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, NY 14853, USA
| | - D A Muller
- Kavli Institute at Cornell for Nanoscale Science, Ithaca, NY 14853, USA; School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA
| | - J Thom-Levy
- Laboratory for Elementary-Particle Physics, Cornell University, Ithaca, NY 14853, USA
| | - S M Gruner
- Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, NY 14853, USA; Kavli Institute at Cornell for Nanoscale Science, Ithaca, NY 14853, USA
| | - J M Maxson
- Cornell Laboratory for Accelerator-Based Sciences and Education, Cornell University, Ithaca, NY 14850, USA.
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Zhang KC, Meng XJ, Hu T, Luo D, Cao H, Lin QH, Zou HC. [Survey on the cognition of the "undetectable equals untransmittable" concept among HIV-infected men who have sex with men receiving antiviral treatment]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1610-1615. [PMID: 37875449 DOI: 10.3760/cma.j.cn112338-20230424-00264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
Objective: To explore the cognition of the "undetectable equals untransmittable" ("U=U") concept and associated factors among HIV-infected men who have sex with men (MSM) receiving antiviral treatment (ART) in Shenzhen, and provide evidence for designing promotion and advocacy strategies for the "U=U" concept. Methods: We recruited HIV-infected MSM receiving ART using convenient sampling method combined with routine follow-up in Shenzhen through conducting observational survey. The sample size was estimated to be 475. A questionnaire was administered to collect socio-demographic characteristics, sexual behaviors, ART, viral load testing and the cognition towards "U=U" in HIV-infected MSM. Logistic regression was used to access factors associated with acceptance of "U=U". Results: A total of 490 HIV-infected MSM receiving ART were recruited. Of whom, 60.2% (295/490) were aware of "U=U" and 50.6% (248/490) accepted "U=U". Multiple logistic regression showed that participants who had an educational level of college or above (aOR=1.76,95%CI: 1.12-2.75) were more likely to accept "U=U". Those who had no local residency (aOR=0.51,95%CI: 0.29-0.92), had viral load >0 copies/ml in the last testing (aOR=0.61,95%CI: 0.38-0.98) and were unaware of "U=U" (aOR=0.13, 95%CI: 0.09-0.21), were less likely to accept "U=U". Conclusions: HIV-infected MSM receiving ART had a low cognition level of "U=U" in Shenzhen. Promotion and advocacy on this concept through healthcare workers should be enhanced in combination with routine follow-up in order to improve their ART adherence and outcome of treatment. Furthermore, developing related guidelines on "U=U" according to the characteristics of HIV-infected individuals is warranted to improve the normalization of promotion and advocacy on "U=U".
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Affiliation(s)
- K C Zhang
- Longhua District Centre for Disease Control and Prevention, Shenzhen 518109, China
| | - X J Meng
- Wuxi Prefectural Centre for Disease Control and Prevention, Wuxi 214023, China
| | - T Hu
- Longhua District Centre for Disease Control and Prevention, Shenzhen 518109, China
| | - D Luo
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - H Cao
- Longhua District Centre for Disease Control and Prevention, Shenzhen 518109, China
| | - Q H Lin
- Longhua District Centre for Disease Control and Prevention, Shenzhen 518109, China
| | - H C Zou
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
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Pan T, Zhao GZ, Luo D. New Data-Driven Gated (DDG) PET/CT for Radiation Treatment Planning of NSCLC. Int J Radiat Oncol Biol Phys 2023; 117:S87-S88. [PMID: 37784594 DOI: 10.1016/j.ijrobp.2023.06.412] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) PET/CT for RT simulation of NSCLC is typically conducted in two separate imaging sessions of gated 4D-CT in radiation oncology and fusion with non-gated PET/CT in diagnostic imaging, making treatment response assessment (TRA) with PET/CT and radiation treatment planning (RTP) challenging. To remedy this short-coming, we designed a new data-driven gated (DDG) PET/CT, based on the self-gated PET and self-gated CT data to derive the gated PET/CT data free of tumor blurring and misregistration artifacts without any respiratory monitoring device (ease of use and cost reduction). The new DDG PET/CT also provides the important 4D-CT information of end-inspiratory (EI), end-expiratory (EE), maximum-intensity-projection (MIP) and average-intensity-projection (AIP) CT's. The total imaging time is < 15 min, which makes DDG PET/CT simulation in a single session without any respiratory monitoring device possible. MATERIALS/METHODS Acquisition is standard PET/CT imaging protocol followed by a cine CT imaging of the tumor area. We utilized the commercial DDG PET from GE Discovery PET/CT and designed a new DDG CT for attenuation correction of the DDG PET for reduction of tumor motion and mis-registration. The AIP and MIP images were from the average and maximum pixel values of the cine CT images, respectively. The cine CT images with the largest and smallest average CT number in the lung region were identified as the EE and EI CT images, respectively. For the image slices without any lung region present, the largest and smallest expansions of the body outline contour were selected to be the EE and EI CT phases, respectively. The AIP and EE CT images were used for attenuation correction of the PET and DDG PET data, respectively. Both DDG PET/CT and 4D-CT of (EI, EE, AIP and MIP) are for RT simulation of NSCLC. 38 4D-CT patient data sets were compared at the EE and EI phases between our DDG CT and 4D-CT to demonstrate the applicability of the newly designed DDG CT. RESULTS A prototype software on a Dell PC of i5-6500 CPU has been successfully developed to enable DDG PET/CT and 4D-CT on seven GE Discovery PET/CT scanners. The operating system was Ubuntu and the computer language was Python. In the EE phase, the images selected by DDG CT and 4D CT were identical 62.5±21.6% of the time. In the EI phase, the images selected by DDG CT and 4D CT were identical 68.2±18.9% of the time. Inspection of the EE and EI phases of DDG CT and 50% and 0% of 4D-CT demonstrated both data sets of DDG CT and 4D CT were almost identical. CONCLUSION A new DDG PET/CT and 4D-CT in a single imaging session without any hardware gating has been developed for TRA and RTP of NSCLC. The utility is available on the network and it enables all PET/CT scanners on the network for TRA and RTP. The new DDG CT provides the benefits of 4D-CT without any requirement of external hardware gating and make possible DDG PET/CT free of tumor motion and misregistration artifacts.
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Affiliation(s)
- T Pan
- Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - G Z Zhao
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - D Luo
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX
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Chen T, Zheng B, Yang P, Zhang Z, Su Y, Chen Y, Luo L, Luo D, Lin Y, Xie R, Zeng L. The Incidence and Prognosis Value of Perineural Invasion in Rectal Carcinoma: From Meta-Analyses and Real-World Clinical Pathological Features. Clin Oncol (R Coll Radiol) 2023; 35:e611-e621. [PMID: 37263883 DOI: 10.1016/j.clon.2023.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 04/13/2023] [Accepted: 05/16/2023] [Indexed: 06/03/2023]
Abstract
AIMS Perineural invasion (PNI) is a special type of metastasis of several cancers and has been reported as being a factor for poor prognosis in colorectal carcinoma. However, investigations of PNI in only rectal cancer and a comprehensive analysis combining meta-analyses with real-world case studies remain lacking. MATERIALS AND METHODS First, articles from 2000 to 2020 concerning the relationship between PNI and rectal cancer prognoses and clinical features were meta-analysed. Subsequently, we carried out a retrospective analysis of 312 rectal cancer cases that underwent radical surgery in the real world. The incidence of PNI and the relationship between PNI and prognosis, as well as clinicopathological factors, were investigated. RESULTS The incidence of PNI was 23.09% and 33.01% in the meta-analysis and clinical cases, respectively. PNI occurred as early as stage I (2.94%). Moreover, neoadjuvant therapy significantly reduced the PNI-positive rate (20.34% versus 26.54%). Both meta-analysis and real-world clinical case studies suggested that PNI-positive patients had poorer prognoses than PNI-negative patients. We established an effective risk model consisting of T stage, differentiation and lymphovascular invasion to predict PNI in rectal cancer. CONCLUSION PNI is a poor prognostic factor for rectal cancer and could occur even in stage I. Additionally, neoadjuvant therapy could sufficiently reduce the PNI-positive rate. T stage, lymphovascular invasion and differentiation grade were independent risk factors for PNI and the risk model that included these factors could predict the probability of PNI.
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Affiliation(s)
- T Chen
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - B Zheng
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - P Yang
- Department of Pathology, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Z Zhang
- Department of Radiology, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Y Su
- Department of General Surgery, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Y Chen
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - L Luo
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - D Luo
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Y Lin
- Department of Pathology, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - R Xie
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China.
| | - L Zeng
- Department of Abdominal Oncology, The Cancer Center of the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China.
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Yoder AK, Netherton T, Wang XA, Lim TY, Wang H, Luo D, Wang C, Thrower S, Farooqi A, Mitra D, Bishop AJ, Guadagnolo BA. Evaluating the Utility of Traditional Bowel Dose Constraints when Treating Abdominal and Pelvic Sarcomas with Preoperative Radiation Therapy. Int J Radiat Oncol Biol Phys 2023; 117:e353-e354. [PMID: 37785222 DOI: 10.1016/j.ijrobp.2023.06.2431] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Abdominopelvic soft tissue sarcomas (AP-STS) are selectively treated with preoperative radiation therapy (RT) followed by surgery. Due to their rarity, most bowel dose constraints are extrapolated from dosimetric studies for other abdominal or pelvic malignancies where concurrent chemotherapy is often given in addition to RT. We sought to investigate associations between dosimetric bowel constraints and the risk for developing acute and long-term toxicities in patients who received preoperative RT for AP-STS. MATERIALS/METHODS We performed a retrospective review of patients treated at a tertiary cancer center for non-metastatic AP-STS between 2005 and 2020. Dosimetric parameters for the "bowel bag" organ at risk structure were extracted for each patient. Chi-Square or Fisher's Exact Test, where appropriate, was utilized to compare the proportion of patients who exceeded constraints to the bowel bag contour as per the consensus RT retroperitoneal sarcoma guidelines, and the development of acute and long-term toxicities. RESULTS We identified 39 patients with available dosimetric data. The median follow-up was 34 months (IQR 20-47). Approximately half of the tumors were located in the pelvis (n = 20, 51%), and the majority were treated with IMRT/VMAT (n = 35, 90%). 31 patients (80%) presented with de novo disease, and 20% (n = 8) were recurrent presentations but had not received prior RT. The most common histology was leiomyosarcoma (n = 15, 38%), followed by de-differentiated liposarcoma (n = 8, 21%). The median bowel max dose (defined as D0.1cc) was 5309cGy [IQR 5262-5830]. Thirteen patients (33%) exceeded the volumetric V15 Gy <830cm3 bowel bag constraint, and 18 (46%) exceeded the V45 Gy ≤ 195cm3 bowel bag constraint. Overall, 17 patients (44%) had acute grade 1 diarrhea, and 11 (28%) had grade 1-2 nausea. Five patients (13%) had long-term radiation-related toxicities, including 1 patient who developed an enterocutaneous fistula. There was no association between exceeding V15 Gy>830 cm3 (p = 0.31) or V45 Gy≥195cm3 (p = 0.65) bowel bag constraints and developing a long-term RT toxicity. Similarly, exceeding V15 Gy>830 cm3 or V45 Gy≥195cm3 did not lead to increased risks of developing acute diarrhea, nausea, or any other acute RT toxicity (all p>0.05). CONCLUSION Traditional volumetric bowel bag dose constraints are frequently exceeded given the large size of AP-STS at presentation and thus the large RT target volumes. Despite a significant proportion of patients exceeding these constraints, these data suggest that RT is overall well-tolerated, and the risk of developing toxicities does not correlate with traditional bowel bag volumetric constraints. There are ongoing efforts to substantially expand this cohort for further investigation into the relationship between dosimetric data and bowel toxicities in order to identify more predictive bowel constraints that can be used during treatment planning of AP-STS.
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Affiliation(s)
- A K Yoder
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - T Netherton
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - X A Wang
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - T Y Lim
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - H Wang
- Department of Radiation Physics, The University of Texas, MD Anderson Cancer Center, Houston, TX
| | - D Luo
- MD Anderson Cancer Center, Houston, TX
| | - C Wang
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - S Thrower
- The University of Texas MD Anderson Cancer Center, Houston, TX
| | - A Farooqi
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - D Mitra
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - A J Bishop
- Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX
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12
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Zhong HL, Zhao HP, Li LH, Li QM, Luo D, Zou HC. [Differences in biochemical indexes and AIDS-related complications at baseline in HIV- infected patients with different levels of immune reconstitution after antiretroviral therapy]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1283-1289. [PMID: 37661622 DOI: 10.3760/cma.j.cn112338-20230113-00027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Objective: To observe the differences in biochemical indexes and AIDS-related complications at baseline in HIV-infected patients with different levels of immune reconstitution to antiretroviral therapy (ART). Methods: The subjects were treat-naïve adult HIV-infected patients who were followed up for more than 24 months in the Guangzhou Eighth People's Hospital affiliated infection clinic at Guangzhou Medical University from January 2010 to December 2017. CD4+ T lymphocyte count at baseline at <200, 200-350, and >350 cells/µl levels were divided into poor, partial, and good immune reconstitution groups. The Kruskal-Wallis H and chi-square tests were used to analyze the differences in baseline sociodemographic characteristics, biochemical indexes, and AIDS-related complications among different groups. The SPSS 20.0 software was used for statistical analysis. Results: Among the 3 900 HIV-infected individuals, 385 cases (9.9%), 1 206 cases (30.9%), and 2 309 cases (59.2%) were grouped into poor, partial and good immune reconstitution groups, respectively. The baseline biochemical indexes of leukocyte, platelet, hemoglobin, TG, TC, FPG, AST, ALT and total bilirubin in the poor immune reconstitution group were significantly different from those in the good immune reconstitution group (all P<0.05). The proportion of AIDS-related complications at baseline in the poor immune reconstitution group, such as tuberculosis, pneumocystis yeli pneumonia, disseminated mycosis, esophageal candidiasis, extrapulmonary tuberculosis, dermatitis, oral candidiasis, oral mucous leukoplakia, continuous diarrhea for more than 1 month and continuous or intermittent fever for more than 1 month, was significantly higher than that in the good immune reconstitution group (all P<0.05). Conclusions: The biochemical indexes and AIDS-related complications in HIV-infected patients with different levels of immune reconstitution were significantly different at baseline. Attention should be paid to monitoring abnormal biomedical indicators and AIDS-related complications at baseline.
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Affiliation(s)
- H L Zhong
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou 510060, China
| | - H P Zhao
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - L H Li
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou 510060, China
| | - Q M Li
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou 510060, China
| | - D Luo
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
| | - H C Zou
- School of Public Health (Shenzhen), Sun Yat-sen University, Shenzhen 518107, China
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13
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Yang LQ, Huang HUANG, Tang P, Yan L, Luo D. [Epstein-Barr virus positive diffuse large B-cell lymphoma complicated with plasma cell myeloma: report of a case]. Zhonghua Bing Li Xue Za Zhi 2023; 52:633-635. [PMID: 37263934 DOI: 10.3760/cma.j.cn112151-20221023-00879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- L Q Yang
- Huayin Health Hematopathology Comprehensive Diagnostic Southwest Center,Chengdu Huayin Medical Laboratory Center, Chengdu 611700, China
| | - H U A N G Huang
- Corewell Health William Beaumont University Hospital, Royal Oak, Michigan 48073, U S A
| | - P Tang
- Huayin Health Hematopathology Comprehensive Diagnostic Southwest Center,Chengdu Huayin Medical Laboratory Center, Chengdu 611700, China
| | - L Yan
- Huayin Health Hematopathology Comprehensive Diagnostic Southwest Center,Chengdu Huayin Medical Laboratory Center, Chengdu 611700, China
| | - D Luo
- Huayin Health Hematopathology Comprehensive Diagnostic Southwest Center,Chengdu Huayin Medical Laboratory Center, Chengdu 611700, China
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Liu Y, Sanchez DM, Ware MR, Champenois EG, Yang J, Nunes JPF, Attar A, Centurion M, Cryan JP, Forbes R, Hegazy K, Hoffmann MC, Ji F, Lin MF, Luo D, Saha SK, Shen X, Wang XJ, Martínez TJ, Wolf TJA. Rehybridization dynamics into the pericyclic minimum of an electrocyclic reaction imaged in real-time. Nat Commun 2023; 14:2795. [PMID: 37202402 DOI: 10.1038/s41467-023-38513-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 04/28/2023] [Indexed: 05/20/2023] Open
Abstract
Electrocyclic reactions are characterized by the concerted formation and cleavage of both σ and π bonds through a cyclic structure. This structure is known as a pericyclic transition state for thermal reactions and a pericyclic minimum in the excited state for photochemical reactions. However, the structure of the pericyclic geometry has yet to be observed experimentally. We use a combination of ultrafast electron diffraction and excited state wavepacket simulations to image structural dynamics through the pericyclic minimum of a photochemical electrocyclic ring-opening reaction in the molecule α-terpinene. The structural motion into the pericyclic minimum is dominated by rehybridization of two carbon atoms, which is required for the transformation from two to three conjugated π bonds. The σ bond dissociation largely happens after internal conversion from the pericyclic minimum to the electronic ground state. These findings may be transferrable to electrocyclic reactions in general.
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Affiliation(s)
- Y Liu
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY, 11790, USA
| | - D M Sanchez
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
- Department of Chemistry, Stanford University, 333 Campus Drive, Stanford, CA, 94305, USA
- Design Physics Division, Lawrence Livermore National Laboratory, Livermore, CA, USA
| | - M R Ware
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
| | - E G Champenois
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
| | - J Yang
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
- Center of Basic Molecular Science, Department of Chemistry, Mong Man Wai Building of Science and Technology, S-1027 Tsinghua University, Beijing, China
| | - J P F Nunes
- Department of Physics and Astronomy, University of Nebraska-Lincoln, Theodore Jorgensen Hall 208, 855 N 16th Street, Lincoln, NE, 68588, USA
- Diamond Light Source, Harwell Science Campus, Fermi Ave, Didcot, OX11 0DE, UK
| | - A Attar
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
| | - M Centurion
- Department of Physics and Astronomy, University of Nebraska-Lincoln, Theodore Jorgensen Hall 208, 855 N 16th Street, Lincoln, NE, 68588, USA
| | - J P Cryan
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
| | - R Forbes
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
| | - K Hegazy
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
| | - M C Hoffmann
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
| | - F Ji
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
| | - M-F Lin
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
| | - D Luo
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
| | - S K Saha
- Department of Physics and Astronomy, University of Nebraska-Lincoln, Theodore Jorgensen Hall 208, 855 N 16th Street, Lincoln, NE, 68588, USA
| | - X Shen
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
| | - X J Wang
- SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA
| | - T J Martínez
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA.
- Department of Chemistry, Stanford University, 333 Campus Drive, Stanford, CA, 94305, USA.
| | - T J A Wolf
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA, 94025, USA.
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15
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Han Z, Zheng L, Luo D, Pang N, Yao Y. Ferroptosis: a new target for iron overload-induced hemophilic arthropathy synovitis. Ann Hematol 2023; 102:1229-1237. [PMID: 36951967 DOI: 10.1007/s00277-023-05190-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 03/19/2023] [Indexed: 03/24/2023]
Abstract
Iron deposition is closely related to developing haemophilic arthropathy (HA). Studying the relationship between ferroptosis signal expression and iron overload in HA synovium facilitates understanding the pathogenesis of joint synovial hyperplasia in bloodborne arthritis and the development of new protective methods. The knee synovium was collected from HA and osteoarthritis (OA) patients, and pathological changes were analysed by HE and Prussian blue staining. Ferroptosis phenotypes were examined by immunohistochemistry and western blotting. Moreover, ferric ammonium citrate (FAC)-induced was used to construct an in vitro iron overload model to investigate the relationship between iron overload and ferroptosis in synovial fibroblasts (FLS). Furthermore, the factors influencing ferroptosis in FLS were explored. Iron deposition, cell proliferation, and vascular proliferation in the synovium of HA were more obvious. Ferroptosis in HA synovium appears to inhibit. FLS ferroptosis increased with iron accumulation, malondialdehyde (MDA) in cells, and glutathione (GSH) depletion. TNF-α plays a protective role in this process. Blocking the action of TNF-α and inducing ferroptosis significantly reduced synovial proliferation. TNF-α inhibitors combined with a ferroptosis inducer may be a new therapeutic method for HA synovitis.
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Affiliation(s)
- Zhiwei Han
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, No. 678 Furong Road, Economic and Technological Development Zone, Hefei, Anhui, China
| | - Liujie Zheng
- Department of Orthopaedic Surgery, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.473 Hanzheng Street, Wuhan, HuBei, China
| | - Dasheng Luo
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, No. 678 Furong Road, Economic and Technological Development Zone, Hefei, Anhui, China
| | - Nanyu Pang
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, No. 678 Furong Road, Economic and Technological Development Zone, Hefei, Anhui, China
| | - Yunfeng Yao
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, No. 678 Furong Road, Economic and Technological Development Zone, Hefei, Anhui, China.
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Luo D, Thompson R, Katz R, Odland I, Li T, Langer D, Becker L, Duroseau Y, Godbout B. 260 Improving Patient Satisfaction With Mobile-Based Real-Time Results Sharing in the Emergency Department. Ann Emerg Med 2022. [DOI: 10.1016/j.annemergmed.2022.08.287] [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]
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17
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Zeng Q, Wen H, Liao Y, Luo D, Qin Y, Li S. Five axial planes of fetal brain for comprehensive cerebral evaluation. Ultrasound Obstet Gynecol 2022; 60:577-579. [PMID: 35380745 DOI: 10.1002/uog.24909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 03/16/2022] [Accepted: 03/24/2022] [Indexed: 06/14/2023]
Affiliation(s)
- Q Zeng
- Department of Ultrasound, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - H Wen
- Department of Ultrasound, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Y Liao
- Department of Ultrasound, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - D Luo
- Department of Ultrasound, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Y Qin
- Department of Ultrasound, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - S Li
- Department of Ultrasound, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
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Huang H, Huang K, Sun Y, Luo D, Wang M, Chen T, Li M, Duan J, Huang L, Dong C. A Digital Microfluidic RT-qPCR Platform for Multiple Detections of Respiratory Pathogens. Micromachines (Basel) 2022; 13:mi13101650. [PMID: 36296002 PMCID: PMC9611846 DOI: 10.3390/mi13101650] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/24/2022] [Accepted: 09/27/2022] [Indexed: 05/30/2023]
Abstract
The coronavirus disease 2019 pandemic has spread worldwide and caused more than six million deaths globally. Therefore, a timely and accurate diagnosis method is of pivotal importance for controlling the dissemination and expansions. Nucleic acid detection by the reverse transcription-polymerase chain reaction (RT-PCR) method generally requires centralized diagnosis laboratories and skilled operators, significantly restricting its use in rural areas and field settings. The digital microfluidic (DMF) technique provides a better option for simultaneous detections of multiple pathogens with fewer specimens and easy operation. In this study, we developed a novel digital microfluidic RT-qPCR platform for multiple detections of respiratory pathogens. This method can simultaneously detect eleven respiratory pathogens, namely, mycoplasma pneumoniae (MP), chlamydophila pneumoniae (CP), streptococcus pneumoniae (SP), human respiratory syncytial virus A (RSVA), human adenovirus (ADV), human coronavirus (HKU1), human coronavirus 229E (HCoV-229E), human metapneumovirus (HMPV), severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), influenza A virus (FLUA) and influenza B virus (FLUB). The diagnostic performance was evaluated using positive plasmids samples and clinical specimens compared with off-chip individual RT-PCR testing. The results showed that the limit of detections was around 12 to 150 copies per test. The true positive rate, true negative rate, positive predictive value, negative predictive value, and accuracy of DMF on-chip method were 93.33%, 100%, 100%, 99.56%, and 99.85%, respectively, as validated by the off-chip RT-qPCR counterpart. Collectively, this study reported a cost-effective, high sensitivity and specificity on-chip DMF RT-qPCR system for detecting multiple respiratory pathogens, which will greatly contribute to timely and effective clinical management of respiratory infections in medical resource-limited settings.
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Affiliation(s)
- Huitao Huang
- Zhuhai Center for Disease Control and Prevention, Zhuhai 519087, China
| | - Kaisong Huang
- Zhuhai Center for Disease Control and Prevention, Zhuhai 519087, China
| | - Yun Sun
- Digifluidic Biotech Ltd., Zhuhai 519000, China
| | - Dasheng Luo
- Digifluidic Biotech Ltd., Zhuhai 519000, China
| | - Min Wang
- Digifluidic Biotech Ltd., Zhuhai 519000, China
| | - Tianlan Chen
- Digifluidic Biotech Ltd., Zhuhai 519000, China
- Guangzhou Nansha IT Park Postdoctoral Programme, Guangzhou 511466, China
| | - Mingzhong Li
- State Key Laboratory of Analog and Mixed-Signal VLSI, University of Macau, Macao 999078, China
| | - Junwei Duan
- College of Information Science and Technology, Jinan University, Guangzhou 510632, China
| | - Liqun Huang
- Zhuhai Center for Disease Control and Prevention, Zhuhai 519087, China
| | - Cheng Dong
- School of Intelligent Systems Science and Engineering/JNU-Industry School of Artificial Intelligence, Jinan University, Zhuhai 519000, China
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19
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Zheng L, Han Z, Luo D, Li J, Ye H, Feng R, Zhong Q, Jing J, Yao Y. FGF23 and SOX9 expression in hemophilic cartilage: In vitro studies of the effects of iron. Haemophilia 2022; 28:1062-1068. [PMID: 35802007 DOI: 10.1111/hae.14623] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 05/07/2022] [Accepted: 06/24/2022] [Indexed: 01/05/2023]
Abstract
INTRODUCTION Clarifying the links between iron and FGF23, SOX9 expression in chondrocytes would be helpful for comprehending articular cartilage degradation pathogenesis in blood-induced arthritis and exploring new protective methods. AIM The purpose of this study was to determine iron regulation of fibroblast growth factor 23 (FGF23) and SRY-box 9 (SOX9) in human chondrocytes, an area which is unexplored in blood-induced arthritis cartilage degradation pathogenesis. METHODS Expression of FGF23, SOX9, MMP13 and collagen Ⅱ in articular cartilage of patients with osteoarthritis (OA) or haemophilic arthritis (HA) was determined by western blot (WB). Iron induced FGF23 and SOX9 mRNA and protein expression in primary human normal chondrocyte cells (HUM-iCell-s018) was quantifified by qRT-PCR and WB, respectively. RESULTS We found that compared with OA patients, the expression of FGF23, MMP13 in articular cartilage of patients with HA was up-regulated, while the expression of SOX9, collagen Ⅱ was down-regulated. Iron induced FGF23 and suppressed SOX9 expression in chondrocytes in a dose-dependent manner. CONCLUSIONS These findings demonstrated that iron were involved in hemophilic cartilage lesion directly via changing cartilage phenotype through regulation of FGF23 and SOX9 expression in chondrocytes.
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Affiliation(s)
- Liujie Zheng
- Department of Orthopaedic Surgery, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Zhiwei Han
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Dasheng Luo
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Jiale Li
- Department of Orthopaedic Surgery, Fuyang Hospital of Anhui Medical University, Fuyang, Anhui, People's Republic of China
| | - Houlong Ye
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Ru Feng
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Qigang Zhong
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Juehua Jing
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Yunfeng Yao
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
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Zhao H, Luo D, Yang JJ, Yuan MJ, Liu L, Yu WH. [Clinical effect and analysis of exercise treatment for temporomandibular joint osteoarthritis]. Zhonghua Kou Qiang Yi Xue Za Zhi 2022; 57:701-707. [PMID: 35790509 DOI: 10.3760/cma.j.cn112144-20220314-00109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To explore the clinical efficacy of (stomatognathic system functional exercise(SSFE) in the treatment of temporomandibular joint osteoarthritis (TMJOA), and to provide reference for the clinical treatment of TMJOA. Methods: Choose between January 2020 and June 2020 in the Affiliated Hospital of Qingdao University of Temporomandibular Disorder (TMD) Clinics, pain in the temporomandibular joint (TMJ), limited openings for complained of symptoms of TMD patients, diagnosed by clinical examination and cone beam CT (CBCT) examination of TMJOA patients 60 patients (64 joints), including 20 males and 45 females, the age was (42.6±2.5) years (33-47 years old). The patients were randomly divided into the experimental group (30 cases, 34 joints) and the control group (30 cases, 30 joints) according to the odd and even numbers of their treatment numbers. The experimental group was treated with SSFE method. The control group was treated with maxillary full dentition occlusal splint. Visual analogue score (VAS), natural mouth opening and maximal mouth opening (MMO) of each patient in each group were recorded at initial diagnosis, 2 weeks, 3 and 6 months after treatment, and CBCT imaging was compared for the changes of condylar bone at initial diagnosis, 3 and 6 months after treatment. Results: VAS values of the experimental groups were (2.90±1.42), (0.90±0.37), (0.87±0.23) at 2 weeks, 3 and 6 months after treatment, respectively. The VAS values of the control group were (4.57±1.94), (4.17±2.09), (3.73±2.21), respectively. The VAS score of the experimental group was significantly lower than that of the control group (F=42.93, P<0.001). Before SSFE treatment, all the patients in the experimental group had different degrees of restricted opening and characteristic abnormal opening and closing pattern. Two weeks after SSFE treatment, the opening degree of the patients was (37.69±2.4)mm, the opening shape "↓" and the closing shape "↑" were normal. At 3 and 6 months after treatment, the oral opening was (38.98±1.08) mm and (39.73±1.76) mm, respectively. The opening degree of control group was (36.85±2.33) mm 2 weeks after treatment, and the characteristic abnormal opening and closing pattern still existed. The opening degree of control group was (37.82±1.85) mm and (37.40±1.75) mm 3 and 6 months after treatment, respectively. The characteristic abnormal opening and closing pattern (stuffy, awkward, deliberate, unnatural) did not improve significantly. The openness of the experimental group was significantly higher than that of the control group (F=25.20, P<0.001). In the experimental group, 82.4% (28/34) had benign remodeling of condylar bone 6 months after treatment, and 17.6% (6/34) had no change of condylar bone. There was no significant change in condylar bone in control group. CBCT scores of the experimental group were (2.43±1.74) and (1.70±1.26) at 3 and 6 months after treatment, respectively. CBCT scores of the control group at 3 and 6 months after treatment were (4.23±1.50) and (4.10±1.37), they were significantly lower in the experimental group than in the control group (F=27.20, P<0.001). Conclusions: Full dentition occlusal splint can alleviate the pain in the joint area of TMJOA patients, but can not improve the characteristic abnormal mandibular movement, and the condyle bone repair is not obvious. SSFE can effectively relieve the symptoms and signs of TMJOA patients, especially improve the abnormal characteristic mandibular movement, and promote the normal reconstruction and repair of condylar bone.
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Affiliation(s)
- H Zhao
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - D Luo
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - J J Yang
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - M J Yuan
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - L Liu
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - W H Yu
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
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21
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Della Rosa MM, Sandoval E, Luo D, Pacheco D, Jonker A. Effect of feeding fresh forage plantain (Plantago lanceolata) or ryegrass-based pasture on methane emissions, total-tract digestibility, and rumen fermentation of nonlactating dairy cows. J Dairy Sci 2022; 105:6628-6638. [PMID: 35787331 DOI: 10.3168/jds.2021-21757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 04/06/2022] [Indexed: 11/19/2022]
Abstract
Plantain (Plantago lanceolata) is an herb used to reduce the forage deficit of ryegrass-based pastures during the summer. This herb is being promoted for its reduced environmental impact in terms of nitrogen emissions, particularly reducing urinary nitrogen. However, the effect of plantain on emissions of enteric CH4, the main greenhouse gas produced from ruminant-based production systems, is not known. The aim of the present trial was to determine CH4 emissions and rumen fermentation characteristics of nonlactating dairy cows fed 100% plantain (PLT) or 100% perennial ryegrass (RG; Lolium perenne) in 2 experiments (E1 and E2). The forages were in a vegetative growth stage in E1 and were in a reproductive growth stage in E2. Methane emissions from 16 cows in each experiment were measured in respiration chambers for 2 d. Methane emissions per unit of dry matter intake (CH4 yield) were 15 and 28% less for cows fed PLT than those fed RG in E1 and E2, respectively. Dry matter digestibility of PLT was 7 and 27% less than that of RG in E1 and E2, respectively, and CH4 per unit of dry matter digested was similar for PLT and RG in both experiments. There were only minor (but some significant) differences in rumen fermentation characteristics between cows fed PLT and RG in both experiments. In conclusion, CH4 yield was lower for cows fed PLT compared with those fed RG in both experiments and this reduction was largely explained by the lesser dry matter digestibility of PLT.
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Affiliation(s)
- M M Della Rosa
- AgResearch Limited, Grasslands Research Centre, Tennent Drive, 11 Dairy Farm Road, Private Bag 11008, Palmerston North 4442, New Zealand
| | - E Sandoval
- AgResearch Limited, Grasslands Research Centre, Tennent Drive, 11 Dairy Farm Road, Private Bag 11008, Palmerston North 4442, New Zealand
| | - D Luo
- AgResearch Limited, Grasslands Research Centre, Tennent Drive, 11 Dairy Farm Road, Private Bag 11008, Palmerston North 4442, New Zealand
| | - D Pacheco
- AgResearch Limited, Grasslands Research Centre, Tennent Drive, 11 Dairy Farm Road, Private Bag 11008, Palmerston North 4442, New Zealand
| | - A Jonker
- AgResearch Limited, Grasslands Research Centre, Tennent Drive, 11 Dairy Farm Road, Private Bag 11008, Palmerston North 4442, New Zealand.
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22
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Feng R, Zhong Q, Zheng L, Ye H, Luo D, Ding M, Pang N, Li J, Yao Y. Study on the morphological characteristics and rotational alignment axis of placement plane of the tibial component in total knee arthroplasty for hemophilia-related knee arthritis. J Orthop Surg Res 2022; 17:315. [PMID: 35701787 PMCID: PMC9195305 DOI: 10.1186/s13018-022-03176-4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 05/11/2022] [Indexed: 11/10/2022] Open
Abstract
Background Abnormal epiphyseal growth plate development of the proximal tibia in hemophilia patients leads to notable morphological changes in the mature knee joint. This study aimed to compare the morphological characteristics of tibial component placement cut surface in patients with hemophilic arthritis (HA) and osteoarthritis (OA) and to determine the tibial component rotational alignment axis’ best position for HA patients. Methods Preoperative computed tomography scans of 40 OA and 40 HA patients who underwent total knee arthroplasty were evaluated using a three-dimensional (3D) software. The tibial component’s placement morphological parameters were measured. The tibial component’s rotational mismatch angles were evaluated, and the most appropriate 0°AP axis position for HA patients was investigated. Results In the two groups, the morphology was significantly different in some of the parameters (p < 0.05). The tibial component rotational mismatch angles were significantly different between both groups (p < 0.05). The medial 9.26° of the medial 1/3 of the patellar tendon was the point through which 0°AP axis passed for the HA patients. Similarly, the medial 13.02° of the medial 1/3 of the tibial tubercle was also the point through which the 0°AP axis passed. Conclusions The ratio of the anteroposterior length to the geometric transverse length of the placement section of the tibial component in HA patients was smaller than that in OA patients. The medial 9.26° of the medial 1/3 of the patellar tendon or the medial 13.02° of the medial 1/3 of the tibial tubercle seem to be an ideal reference position of the rotational alignment axis of the tibial component for HA patients.
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Affiliation(s)
- Ru Feng
- Department of Orthopedic Surgery, Second Affiliated Hospital of Anhui Medical University, Heifei, 230601, China
| | - Qigang Zhong
- Department of Orthopedic Surgery, Second Affiliated Hospital of Anhui Medical University, Heifei, 230601, China
| | - Liujie Zheng
- Department of Orthopedic Surgery, Second Affiliated Hospital of Anhui Medical University, Heifei, 230601, China
| | - Houlong Ye
- Department of Orthopedic Surgery, Second Affiliated Hospital of Anhui Medical University, Heifei, 230601, China
| | - Dasheng Luo
- Department of Orthopedic Surgery, Second Affiliated Hospital of Anhui Medical University, Heifei, 230601, China
| | - Mingyang Ding
- Department of Orthopedic Surgery, Second Affiliated Hospital of Anhui Medical University, Heifei, 230601, China
| | - Nanyu Pang
- Department of Orthopedic Surgery, Second Affiliated Hospital of Anhui Medical University, Heifei, 230601, China
| | - Jiale Li
- Department of Orthopedic Surgery, Second Affiliated Hospital of Anhui Medical University, Heifei, 230601, China
| | - Yunfeng Yao
- Department of Orthopedic Surgery, Second Affiliated Hospital of Anhui Medical University, Heifei, 230601, China.
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23
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Pan T, Luo D. PD-0073 Development of a new automated data-driven gated (DDG) CT for radiation treatment planning. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)02743-8] [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]
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24
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Zhang M, Wen H, Liang M, Qin Y, Zeng Q, Luo D, Zhong X, Li S. Diagnostic Value of Sylvian Fissure Hyperechogenicity in Fetal SAH. AJNR Am J Neuroradiol 2022; 43:627-632. [PMID: 35272984 PMCID: PMC8993207 DOI: 10.3174/ajnr.a7449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 01/01/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Fetal SAH is an intracranial malformation. The typical diagnostic features of fetal SAH in ultrasound have not been reported. This study aimed to evaluate the diagnostic value of Sylvian fissure hyperechogenicity by prenatal ultrasound in fetuses with SAH. MATERIALS AND METHODS The features on ultrasound and MR imaging of 10 fetuses with SAH were reviewed and summarized. The diagnostic value of the Sylvian fissure in fetal SAH by prenatal ultrasound was evaluated. RESULTS The typical and most obvious manifestations of SAH during the prenatal period were hyperechogenicity in the subarachnoid cavity, especially in the Sylvian fissure; all 10 cases (10/10) had such manifestations. Other manifestations included a hyperecho in other sulci (6/10), especially in the subfrontal sulcus, superior temporal sulcus, or parieto-occipital sulcus; a hyperecho in the cisterns (8/10), especially in the suprasellar cistern, posterior cranial fossa, cisterna ambiens, or quadrigeminal cistern; and a hyperecho around the anterior and posterior longitudinal fissures (2/10). Combined hemorrhage in the parenchymal layer or ventricles (9/10) was found. In addition, Doppler ultrasound showed that the peak flow velocity in the MCA increased in 6 cases (6/10). CONCLUSIONS The homogeneous hyperechogenicity of the Sylvian fissure is an important clue for detecting and diagnosing fetal SAH by prenatal ultrasound. A diagnostic approach has been proposed for fetal SAH, which has great significance in further prognosis.
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Affiliation(s)
- M Zhang
- From the Department of Ultrasound (M.Z., H.W., M.L., Y.Q., Q.Z., D.L., S.L.), Shenzhen Maternity & Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, Guangdong, China
| | - H Wen
- From the Department of Ultrasound (M.Z., H.W., M.L., Y.Q., Q.Z., D.L., S.L.), Shenzhen Maternity & Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, Guangdong, China
| | - M Liang
- From the Department of Ultrasound (M.Z., H.W., M.L., Y.Q., Q.Z., D.L., S.L.), Shenzhen Maternity & Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, Guangdong, China
| | - Y Qin
- From the Department of Ultrasound (M.Z., H.W., M.L., Y.Q., Q.Z., D.L., S.L.), Shenzhen Maternity & Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, Guangdong, China
| | - Q Zeng
- From the Department of Ultrasound (M.Z., H.W., M.L., Y.Q., Q.Z., D.L., S.L.), Shenzhen Maternity & Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, Guangdong, China
| | - D Luo
- From the Department of Ultrasound (M.Z., H.W., M.L., Y.Q., Q.Z., D.L., S.L.), Shenzhen Maternity & Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, Guangdong, China
| | - X Zhong
- Department of Ultrasound (X.Z.), Xiamen Maternal Child Health Care Hospital, Xiamen, China
| | - S Li
- From the Department of Ultrasound (M.Z., H.W., M.L., Y.Q., Q.Z., D.L., S.L.), Shenzhen Maternity & Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, Guangdong, China
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25
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Fu J, Chen J, Wang Y, Meng T, Yue L, Luo D, Wang X. Promoting effect of the recombinant resuscitation promoting factors-2 of Rhodococcus erythropolis on petroleum degradation and cultivable bacterial diversities of the oil-contaminated soils. Lett Appl Microbiol 2021; 74:462-469. [PMID: 34878651 DOI: 10.1111/lam.13626] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 11/27/2021] [Accepted: 11/29/2021] [Indexed: 11/27/2022]
Abstract
Resuscitation-promoting factors (Rpfs) belong to peptidoglycan hydrolases, which participate in recovery of dormant cells and promoting bacteria growth. In this study, the resuscitation promoting factor rpf2 gene of Rhodococcus erythropolis KB1 was expressed in Escherichia coli and purified by Ni2+ affinity chromatography. The purified recombinant fusion protein Rpf2 showed a closely 50 kDa band on sodium dodecyl sulphate polyacrylamide gel electrophoresis. The protein showed muralytic activity, with a specific activity of 1503 ± 123 U mg-1 when determined with 4-methylumbelliferyl-β-d-N, N',N″-triacetotri-ylchitoside as substrate. It also showed protease activity when measured with azocasein as substrate, with a specific activity of 1528 ± 411 U mg-1 . The addition of the recombinant Rpf2 protein significantly increased petroleum degradation efficiency of the indigenous micro-organisms and the petroleum degradation rates increased from 30·86 to 43·45%, 45·20 and 49·23% in the treatment groups. The recombinant protein also increased the petroleum-degrading bacterial diversities enriched from the contaminated soils. The cultivable bacterial flora of the treatment groups supplemented with different concentrations of Rpf2 increased from 82 genera in 9 phyla to 116 genera in 16 phyla and 138 genera in 16 phyla respectively. Thirteen extra petroleum-degrading bacteria strains were isolated from the petroleum-contaminated soils in the groups containing the recombinant Rpf2.
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Affiliation(s)
- J Fu
- School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou, China
| | - J Chen
- School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou, China
| | - Y Wang
- School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, China
| | - T Meng
- Gansu Academy for Water Conservancy, Lanzhou, China
| | - L Yue
- School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou, China
| | - D Luo
- School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou, China
| | - X Wang
- School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou, China
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Luo D, Tong JB, Xiao XC, Bian S, Zhang X, Wang J, Xu HY. Theoretically exploring selective-binding mechanisms of BRD4 through integrative computational approaches. SAR QSAR Environ Res 2021; 32:985-1011. [PMID: 34845959 DOI: 10.1080/1062936x.2021.1999317] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 10/25/2021] [Indexed: 06/13/2023]
Abstract
The origin of cancer is related to the dysregulation of multiple signal pathways and of physiological processes. Bromodomain-containing protein 4 (BRD4) has become an attractive target for the development of anticancer and anti-inflammatory agents since it can epigenetically regulate the transcription of growth-promoting genes. The synthesized BRD4 inhibitors with new chemical structures can reduce the drug resistance, but their binding modes and the inhibitory mechanism remain unclear. Here, we initially constructed robust QSAR models based on 68 reported tetrahydropteridin analogues using topomer CoMFA and HQSAR. On the basis of QSAR results, we designed 16 novel tetrahydropteridin analogues with modified structures and carried out docking studies. Instead of significant hydrogen bondings with amino acid residue Asn140 as reported in previous research, the molecular docking modelling suggested a novel docking pose that involves the amino acid residues (Trp81, Pro82, Val87, Leu92, Leu94, Cys136, Asp144, and Ile146) at the active site of BRD4. The MD simulations, free energy calculations, and residual energy contributions all indicate that hydrophobic interactions are decisive factors affecting bindings between inhibitors and BRD4. The current study provides new insights that can aid the discovery of BRD4 inhibitors with enhanced anti-cancer ability.
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Affiliation(s)
- D Luo
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, China
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an China
| | - J B Tong
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, China
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an China
| | - X C Xiao
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, China
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an China
| | - S Bian
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, China
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an China
| | - X Zhang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, China
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an China
| | - J Wang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, China
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an China
| | - H Y Xu
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, China
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an China
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27
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Zheng L, Luo D, Li J, Ye H, Han Z, Feng R, Zhong Q, Jing J, Yao Y. Pathological changes and expression of lysine oxidases and matrix metalloproteinases -1, -2, and -3 in ligaments of patients with haemophilic arthritis. Haemophilia 2021; 28:145-150. [PMID: 34697874 DOI: 10.1111/hae.14443] [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: 05/03/2021] [Revised: 09/17/2021] [Accepted: 10/12/2021] [Indexed: 12/30/2022]
Abstract
INTRODUCTION Studying the pathological changes of ligaments in patients with haemophilic arthritis (HA) has important significance for guiding the release of ligaments during total knee arthroplasty (TKA) and exploring interventions to prevent ligament lesions. AIM This study was conducted to show the pathological changes and investigate the lysine oxidase (LOX) and matrix metalloproteinase (MMP)-1, -2, and -3 levels in the ligaments of patients with HA compared with those of patients with osteoarthritis (OA). METHODS Ligaments obtained during the TKA were stained with Masson trichrome, Verhoeff-Van Gieson and haematoxylin and eosin to show the basic pathological changes. Collagen I, elastin, LOXs and MMP-1, -2, and -3 expression levels were detected via western blot. LOX and MMP-1, -2, and -3 mRNA expression levels were analysed via quantitative real-time PCR. RESULTS Compared with OA ligaments, HA ligaments were constructed more loosely with wider gaps, more breaks, haemocytodeposition and local hypertrophy among the fibres. LOXs and MMP mRNA expression levels were upregulated in the HA tissues, which was consistent with the western blot results. Collagen I and elastin levels were also higher in patients with HA. CONCLUSIONS The metabolism of the ligaments in patients with HA is more complex than in those with OA, and the ligaments of patients with HA have stronger healing and destruction processes. This pathology is related to iron overload and imbalanced inflammatory factors due to repeated intra-articular bleeding.
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Affiliation(s)
- Liujie Zheng
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Dasheng Luo
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Jiale Li
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Houlong Ye
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Zhiwei Han
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Ru Feng
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Qigang Zhong
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Juehua Jing
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Yunfeng Yao
- Department of Orthopaedic Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui, China
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28
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Champenois EG, Sanchez DM, Yang J, Figueira Nunes JP, Attar A, Centurion M, Forbes R, Gühr M, Hegazy K, Ji F, Saha SK, Liu Y, Lin MF, Luo D, Moore B, Shen X, Ware MR, Wang XJ, Martínez TJ, Wolf TJA. Conformer-specific photochemistry imaged in real space and time. Science 2021; 374:178-182. [PMID: 34618569 DOI: 10.1126/science.abk3132] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- E G Champenois
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - D M Sanchez
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA, USA.,Department of Chemistry, Stanford University, Stanford, CA, USA
| | - J Yang
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA, USA.,SLAC National Accelerator Laboratory, Menlo Park, CA, USA.,Center of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing, China
| | - J P Figueira Nunes
- Department of Physics and Astronomy, University of Nebraska, Lincoln, NE, USA
| | - A Attar
- SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - M Centurion
- Department of Physics and Astronomy, University of Nebraska, Lincoln, NE, USA
| | - R Forbes
- SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - M Gühr
- Institut für Physik und Astronomie, Universität Potsdam, Potsdam, Germany
| | - K Hegazy
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA, USA.,Department of Physics, Stanford University, Stanford, CA, USA
| | - F Ji
- SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - S K Saha
- Department of Physics and Astronomy, University of Nebraska, Lincoln, NE, USA
| | - Y Liu
- Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY, USA
| | - M-F Lin
- SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - D Luo
- SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - B Moore
- Department of Physics and Astronomy, University of Nebraska, Lincoln, NE, USA
| | - X Shen
- SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - M R Ware
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - X J Wang
- SLAC National Accelerator Laboratory, Menlo Park, CA, USA
| | - T J Martínez
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA, USA.,Department of Chemistry, Stanford University, Stanford, CA, USA
| | - T J A Wolf
- Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, CA, USA
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Luo D, Yang Z, Qiu C, Jiang Y, Zhou R, Yang J. A magnetic resonance imaging study on the temporomandibular joint disc-condyle relationship in young asymptomatic adults. Int J Oral Maxillofac Surg 2021; 51:226-233. [PMID: 34330608 DOI: 10.1016/j.ijom.2021.06.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/23/2021] [Accepted: 06/25/2021] [Indexed: 10/20/2022]
Abstract
The aim of this study was to assess the temporomandibular joint (TMJ) disc-condyle relationship in asymptomatic young adults. Ninety-three volunteers aged 19-23 years without temporomandibular disorder (TMD) symptoms underwent TMJ magnetic resonance imaging (MRI). The condylar centre and apex methods were used to measure and analyse the position of the disc in the oblique sagittal plane, and the reliability of the two methods was compared by calculating the intra-class correlation coefficient (ICC). Furthermore, 18 of the volunteers were randomly selected for three-dimensional (3D) reconstruction of the TMJ structure and the disc-condyle relationship. The 3D TMJ structure was established by semi-automatic segmentation of the condyle and articular disc in ITK-SNAP software; the condylar apex method was then performed. It was found that only 33.3% of the posterior edge of the articular discs were located in the normal 12 o'clock position with respect to the condyle. Moreover, this study suggests that the condylar centre method lacks accuracy when compared to the condylar apex method in regard to the measurement of the TMJ disc-condyle relationship (0 < ICCcen < ICCapex < 1). The position of the articular disc (left and right) was more forward in young women when compared to young men. However, there was no significant difference in the TMJ disc-condyle position between the left and right sides in the same individual, although the two joint discs in the same individual were not completely symmetrical.
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Affiliation(s)
- D Luo
- College of Stomatology, Qingdao University, Qingdao, Shandong, PR China; Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, PR China
| | - Z Yang
- Department of Prosthodontics, School and Hospital of Stomatology, Peking University, Beijing, PR China
| | - C Qiu
- Department of Orthopaedic Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, PR China
| | - Y Jiang
- Department of Stomatology, Shibei District People's Hospital of Qingdao, Qingdao, Shandong, PR China
| | - R Zhou
- Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, PR China
| | - J Yang
- Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, PR China.
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Abstract
The purpose of this paper is to solve the prediction problem of nonlinear sequences with multiperiodic features, and a multiperiod grey prediction model based on grey theory and Fourier series is established. For nonlinear sequences with both trend and periodic features, the empirical mode decomposition method is used to decompose the sequences into several periodic terms and a trend term; then, a grey model is used to fit the trend term, and the Fourier series method is used to fit the periodic terms. Finally, the optimization parameters of the model are solved with the objective of obtaining a minimum mean square error. The novel model is applied to research on the loss rate of agricultural droughts in Henan Province. The average absolute error and root mean square error of the empirical analysis are 0.3960 and 0.5086, respectively. The predicted results show that the novel model can effectively fit the loss rate sequence. Compared with other models, the novel model has higher prediction accuracy and is suitable for the prediction of multiperiod sequences.
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Affiliation(s)
- D. Luo
- North China University of Water Resources and Electric Power, Zhengzhou, Henan, P.R. China
| | - G.Z. Zhang
- North China University of Water Resources and Electric Power, Zhengzhou, Henan, P.R. China
- Henan University of Economics and Law, Zhengzhou, Henan, P.R. China
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Luo D, Yang N, Liu Z, Li T, Wang H, Ge M, Zhang R. Effects of astragalus polysaccharide on intestinal inflammatory damage in goslings infected with gosling plague. Br Poult Sci 2021; 62:353-360. [PMID: 33280441 DOI: 10.1080/00071668.2020.1859094] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
1. This study explored the effects of Astragalus membranaceus polysaccharide (APS) on intestinal inflammatory damage of goslings infected with parvovirus ('gosling plague').2. A total of 90 healthy goslings were randomly divided into three groups; control, infected or APS treated, respectively. Goslings in the infection and APS treatment groups were inoculated with 0.3 ml allantoic fluid containing goose parvovirus (ELD50 = 1 × 103/0.3 ml) by intramuscular injection and the control group were injected with saline (0.3 ml) twice a day for 15 days.3. Blood serum and the jejunum were collected at 5, 10 and 15 days after the start of the experiment to detect the activities of SOD and GSH-Px, levels of MDA, sIgA, IL-1β, IL-6 and TNF-α, the mRNA expression of IL-1β, IL-6, LITAF, NF-κB, COX-2 and PGE2, pathological damage in the jejunum and serum IgG, IgM, C3, C4, IFN-γ levels.4. After APS treatment, SOD and GSH-Px activities increased, MDA content decreased; sIgA, IL-1β, IL-6 and TNF-α protein content, and IL-1β, IL-6, LITAF, NF-κB, COX-2 and PGE2 mRNA expression decreased in the jejunal tissue, serum IgG, IgM, C3, C4, IFN-γ significantly increased and pathological damage of jejunum significantly improved.5. In conclusion, APS reduced intestinal inflammatory damage in goslings infected with parvovirus by improving the immune and antioxidant functions of goslings.
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Affiliation(s)
- D Luo
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
| | - N Yang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
| | - Z Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
| | - T Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
| | - H Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
| | - M Ge
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
| | - R Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China.,Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
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You ZJ, Huang HJ, Wu YJ, Luo D, Chen XY. [Histopathological and molecular characteristics of metaplastic thymomas: report of five cases]. Zhonghua Bing Li Xue Za Zhi 2020; 49:1126-1130. [PMID: 33152816 DOI: 10.3760/cma.j.cn112151-20200310-00187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinicopathological characteristics, immunophenotype, molecular genetic characteristics and prognosis of the metaplastic thymoma (MT). Methods: The clinicopathological and follow-up data of five MT cases were collected at Fujian Provincial Hospital from 2008 to 2019. Immunohistochemical staining and MAML2 gene detection were performed, and the relevant literature was reviewed. Results: There were 2 males and 3 females, aged 36-64 years (mean age 52 years). The tumors ranged 3.2-7.3 cm in the greatest diameter (average 5.1 cm).Microscopically, the tumor showed a biphasic pattern with epithelial cells merging gradually with the spindle cell component. The two areas transited to each other or had obvious boundary. Both components showed mild atypia. No mitosis was observed in either area, and a small number of lymphocytes were observed in the stroma. Immunohistochemical staining showed that epithelioid cells were positive for CKpan, p63 and E-cadherin. Spindle cells were positive for vimentin and EMA, while the Ki-67 index was less than 5%, and lymphocytes were negative for TdT. MAML2 gene apart signal was detected in two of the cases (2/4) that were tested by FISH. Conclusions: MT is a low-grade malignant epithelioid thymic tumor. Its diagnosis and differential diagnosis are dependent on the morphological characteristics, immunohistochemical staining and MAML2 gene detection. The primary treatment option is surgical resection, with an overall good prognosis.
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Affiliation(s)
- Z J You
- Department of Pathology, Fujian Provincial Hospital South Branch, Fuzhou 350028, China
| | - H J Huang
- Department of Pathology, Fujian Provincial Hospital, Provincial Clinical Medical College of Fujian Medical University, Fuzhou 350001, China
| | - Y J Wu
- Department of Pathology, Fujian Provincial Hospital, Provincial Clinical Medical College of Fujian Medical University, Fuzhou 350001, China
| | - D Luo
- Department of Pathology, Fujian Provincial Maternity Hospital, Fuzhou 350012, China
| | - X Y Chen
- Department of Pathology, Fujian Provincial Hospital, Provincial Clinical Medical College of Fujian Medical University, Fuzhou 350001, China
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Gan Y, Du Q, Liu W, Li J, Jiang X, Li X, Ou X, Yue H, Zhu H, Zhong Q, Luo D, Liang Q, Xie Y, Zhang Q, Li G, Shang Y. Value Of Radiotherapy After Minimally Invasive Surgery In Patients With Stage IA1-IIA1 Cervical Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1566] [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]
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Thrower S, Al Feghali K, Luo D, Paddick I, Brock K, Chung C. MR Slice Thickness Impacts Detection and Delineation of Brain Metastases for Treatment Determination, Radiosurgery Treatment Planning and Follow-Up. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2027] [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: 11/25/2022]
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Luo D, Jin Y, Nguyen JHV, Malomed BA, Marchukov OV, Yurovsky VA, Dunjko V, Olshanii M, Hulet RG. Creation and Characterization of Matter-Wave Breathers. Phys Rev Lett 2020; 125:183902. [PMID: 33196245 DOI: 10.1103/physrevlett.125.183902] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 09/03/2020] [Accepted: 09/28/2020] [Indexed: 06/11/2023]
Abstract
We report the creation of quasi-1D excited matter-wave solitons, "breathers," by quenching the strength of the interactions in a Bose-Einstein condensate with attractive interactions. We characterize the resulting breathing dynamics and quantify the effects of the aspect ratio of the confining potential, the strength of the quench, and the proximity of the 1D-3D crossover for the two-soliton breather. Furthermore, we demonstrate the complex dynamics of a three-soliton breather created by a stronger interaction quench. Our experimental results, which compare well with numerical simulations, provide a pathway for utilizing matter-wave breathers to explore quantum effects in large many-body systems.
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Affiliation(s)
- D Luo
- Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA
| | - Y Jin
- Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA
| | - J H V Nguyen
- Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA
| | - B A Malomed
- Department of Physical Electronics, School of Electrical Engineering, Faculty of Engineering, and Center for Light-Matter Interaction, Tel Aviv University, 6997801 Tel Aviv, Israel
- Instituto de Alta Investigación, Universidad de Tarapacá, Casilla 7D, Arica, Chile
| | - O V Marchukov
- Department of Physical Electronics, School of Electrical Engineering, Faculty of Engineering, and Center for Light-Matter Interaction, Tel Aviv University, 6997801 Tel Aviv, Israel
- Institute for Applied Physics, Technical University of Darmstadt, 64289 Darmstadt, Germany
| | - V A Yurovsky
- School of Chemistry, Tel Aviv University, 6997801 Tel Aviv, Israel
| | - V Dunjko
- Department of Physics, University of Massachusetts Boston, Boston, Massachusetts 02125, USA
| | - M Olshanii
- Department of Physics, University of Massachusetts Boston, Boston, Massachusetts 02125, USA
| | - R G Hulet
- Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA
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Janku F, Abdul-Karim R, Azad A, Bendell J, Gan H, Sen S, Tan T, Wang J, Marina N, Baker L, Ma L, Mooney J, Luo D, Leveque J, Milla M, Meniawy T. Preliminary results from an open-label, multicenter phase 1/2 dose escalation and expansion study of THOR-707, a novel not-Alpha IL-2, as a single agent in adult subjects with advanced or metastatic solid tumors. Eur J Cancer 2020. [DOI: 10.1016/s0959-8049(20)31094-7] [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]
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37
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Xu DY, Sun YJ, Zhao NJ, Luo D, Zhao YX, Li KY. [Study on the matching feature of current parameters for inducing contraction of orbicularis oris muscle by artificial facial nerve in rabbit with peripheral facial paralysis]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 55:615-619. [PMID: 32610406 DOI: 10.3760/cma.j.cn115330-20190917-00582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the optimal matching of the current parameters about artificial facial nerve (AFN) for inducing contraction of the orbicularis oris muscle (OOM) in rabbit with peripheral facial paralysis. Methods: According to the combinations of different stimulus parameters, at different time points, we used AFN to induce contraction of the affected side OOM of the paralyzed rabbit in waking state. We recorded the current amplitudes of the threshold stimulation and peak stimulation under each combination, then compared the total charge of the stimulus consumption under different combinations. Results: Compared the total stimulus charge consumption of the AFN threshold stimulation and that in the peak stimulation respectively under different stimulus frequency and pulse width matching combinations, we found that the frequency, the pulse width and the interaction of the frequency and pulse width among different groups could affect the total charge, the differences were statistically significant (P<0.05). Conclusions: When AFN stimulus frequency is 60 Hz and the stimulus pulse width is 100 μs, the output current intensity is relatively lowest and the total consumed charge is the lowest under the premise of effectively inducing the paralytic side OOM contraction. Thus we recommend this stimulus parametric combination as the optimal combination for meeting the low power consumption of AFN.
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Affiliation(s)
- D Y Xu
- Department of Otorhinolaryngology, Affiliated Hospital of Chifeng University, Chifeng 024050, China
| | - Y J Sun
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai General Hospital of Shanghai Jiaotong University, Shanghai 200080, China
| | - N J Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai General Hospital of Shanghai Jiaotong University, Shanghai 200080, China
| | - D Luo
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai General Hospital of Shanghai Jiaotong University, Shanghai 200080, China
| | - Y X Zhao
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai General Hospital of Shanghai Jiaotong University, Shanghai 200080, China
| | - K Y Li
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai General Hospital of Shanghai Jiaotong University, Shanghai 200080, China
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Wang Y, Li Y, Chen Y, Zhou R, Sang Z, Meng L, Tan J, Qiao F, Bao Q, Luo D, Peng C, Wang YS, Luo C, Hu P, Xu Z. Systematic analysis of copy-number variations associated with early pregnancy loss. Ultrasound Obstet Gynecol 2020; 55:96-104. [PMID: 31364215 DOI: 10.1002/uog.20412] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 07/11/2019] [Accepted: 07/12/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVES Embryonic numerical and structural chromosomal abnormalities are the most common cause of early pregnancy loss. However, the role of submicroscopic copy-number variations (CNVs) in early pregnancy loss is unclear, and little is known about the critical regions and candidate genes for miscarriage, because of the large size of structural chromosomal abnormalities. The aim of this study was to identify potential miscarriage-associated submicroscopic CNVs and critical regions of large CNVs as well as candidate genes for miscarriage. METHODS Over a 5-year period, 5180 fresh miscarriage specimens were investigated using quantitative fluorescent polymerase chain reaction/CNV sequencing or chromosomal microarray analysis. Statistically significant submicroscopic CNVs were identified by comparing the frequency of recurrent submicroscopic CNVs between cases and a published control cohort. Furthermore, genes within critical regions of miscarriage-associated CNVs were prioritized by integrating the Residual Variation Intolerance Score and the human gene expression dataset for identification of potential miscarriage candidate genes. RESULTS Results without significant maternal-cell contamination were obtained in 5003 of the 5180 (96.6%) cases. Clinically significant chromosomal abnormalities were identified in 59.1% (2955/5003) of these cases. Three recurrent submicroscopic CNVs (microdeletions in 22q11.21, 2q37.3 and 9p24.3p24.2) were significantly more frequent in miscarriage cases, and were considered to be associated with miscarriage. Moreover, 44 critical regions of large CNVs were observed, including 14 deletions and 30 duplications. There were 309 genes identified as potential miscarriage candidate genes through gene-prioritization analysis. CONCLUSIONS We identified potential miscarriage candidate CNVs and genes. These data demonstrate the importance of CNVs in the etiology of miscarriage and highlight the importance of ongoing analysis of CNVs in the study of miscarriage. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- Y Wang
- Department of Prenatal Diagnosis, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu Province, China
| | - Y Li
- Department of Rheumatology, Children's Hospital of Fudan University, Shanghai, China
| | - Y Chen
- CapitalBio Genomics Co., Ltd, Dongguan, Guangdong Province, China
- CapitalBio Technology Inc., Beijing, China
| | - R Zhou
- Department of Prenatal Diagnosis, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu Province, China
| | - Z Sang
- Biosan Biochemical Technologies Co., Ltd, Hangzhou, Zhejiang Province, China
| | - L Meng
- Department of Prenatal Diagnosis, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu Province, China
| | - J Tan
- Department of Prenatal Diagnosis, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu Province, China
| | - F Qiao
- Department of Prenatal Diagnosis, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu Province, China
| | - Q Bao
- Department of Prenatal Diagnosis, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu Province, China
| | - D Luo
- CapitalBio Genomics Co., Ltd, Dongguan, Guangdong Province, China
- CapitalBio Technology Inc., Beijing, China
| | - C Peng
- CapitalBio Genomics Co., Ltd, Dongguan, Guangdong Province, China
- CapitalBio Technology Inc., Beijing, China
| | - Y S Wang
- Tianjin Medical Laboratory, BGI-Tianjin, BGI-Shenzhen, Tianjin, China
- Binhai Genomics Institute, BGI-Tianjin, BGI-Shenzhen, Tianjin, China
| | - C Luo
- Department of Prenatal Diagnosis, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu Province, China
| | - P Hu
- Department of Prenatal Diagnosis, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu Province, China
| | - Z Xu
- Department of Prenatal Diagnosis, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu Province, China
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Xiao W, Gong C, Liu X, Liu Y, Peng S, Luo D, Wang R, Li T, Zhao J, Xiong C, Liang S, Xu H. Association of P2X7R gene with serum lipid profiles in Chinese postmenopausal women with osteoporosis. Climacteric 2019; 22:498-506. [DOI: 10.1080/13697137.2019.1604654] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- W. Xiao
- Department of Pathology, Jiangxi Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - C. Gong
- Department of Science and Education, Chest Hospital of Jiangxi Province, Nanchang, Jiangxi, China
| | - X. Liu
- Clinical Medical College, JiangXi Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - Y. Liu
- Department of Physiology, JiangXi Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - S. Peng
- Basic Medical College, JiangXi Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - D. Luo
- Basic Medical College, JiangXi Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - R. Wang
- Department of Physiology, JiangXi Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - T. Li
- Clinical Medical College, JiangXi Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - J. Zhao
- Clinical Medical College, JiangXi Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - C. Xiong
- Department of Nursing, The Second Affliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - S. Liang
- Department of Physiology, JiangXi Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - H. Xu
- Department of Physiology, JiangXi Medical College of Nanchang University, Nanchang, Jiangxi, China
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Park G, Zhou B, Luo D. 805 Inhibitory effect of tranexamic acid on UVB-induced inflammation in Hacat cells. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.881] [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: 10/27/2022]
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41
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Zhang M, Zhong Y, Lu Q, Zhou B, Luo D. 934 The mechanism of platelet-rich plasma in uvr-induced dermal tissue injury and repair: Adjusting the macrophage polarization through activin receptor-follistatin system. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.1010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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42
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Chen Y, Zhou B, Luo D. 744 Exosome-mediated miR-4655-3p contributes to UV-radiation induced bystander effects by targeting E2F2. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.820] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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43
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Luo D, Si C, Zhou B. 731 Circular RNA expression profile in human fibroblast premature senescence after repeated UVB irradiations revealed by microarray. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.807] [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: 11/25/2022]
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Lau KLW, Yu KM, Luo D, Ruoff RS, Altman MS. High throughput scanning μLEED imaging of surface structural heterogeneity: Defective graphene on Cu(111). Ultramicroscopy 2019; 200:67-72. [PMID: 30826622 DOI: 10.1016/j.ultramic.2019.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 02/18/2019] [Indexed: 11/29/2022]
Abstract
Micro-low energy electron diffraction (μLEED) is frequently used in conjunction with low energy electron microscopy (LEEM) to learn about local surface structural features in small selected areas. Scanning μLEED measurements performed with a very small electron beam (250 nm) can provide precise quantitative information about structural variations with high spatial resolution. We have developed the Source Extraction and Photometry (SEP) - Spot Profile Analysis (SPA) tool for evaluating scanning μLEED data with high throughput. The capability to automate diffraction peak identification with SEP-SPA opens up the possibility to investigate systems with complex diffraction patterns in which diffraction peak positions vary rapidly for small lateral displacements on the surface. The application of this tool to evaluate scanning μLEED data obtained for defective graphene on Cu(111) demonstrates its capabilities. A rich rotational domain structure is observed in which a majority of the graphene is co-aligned with the Cu(111) substrate and the significant remainder comprises domains with large rotations and small sizes that are comparable to the small beam size.
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Affiliation(s)
- K L W Lau
- Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - K M Yu
- Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - D Luo
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea
| | - R S Ruoff
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea; Department of Chemistry, School of Materials Science, School of Chemical Engineering and Energy, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - M S Altman
- Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China.
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Luo Y, Zhao Y, Chen K, Shen J, Shi J, Lu S, Lei J, Li Z, Luo D. Clinical analysis of cervical lymph node metastasis risk factors in patients with papillary thyroid microcarcinoma. J Endocrinol Invest 2019; 42:227-236. [PMID: 29876836 PMCID: PMC6394766 DOI: 10.1007/s40618-018-0908-y] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [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: 04/06/2018] [Accepted: 05/26/2018] [Indexed: 02/05/2023]
Abstract
PURPOSE Lymph node metastasis (LNM) is a vital prognosis factor in patients with papillary thyroid microcarcinoma (PTMC). The study tried to identify clinicopathological factors for LNM of PTMC. METHODS The clinicopathological data of 1031 patients with PTMC were extracted and analyzed. Univariate and multivariate analyses were used to identify risk factors associated with cervical lymph node metastasis. ROC analysis was used to determine the ideal critical points of the sum of the maximum diameter of multifocal in a unilateral lobe. RESULTS The probability of LNM, central lymph node metastasis (CLNM) and lateral lymph node metastasis(LLNM)of PTMC patients were 35.6, 33.7 and 5.6%, respectively. In addition, 1.9% PTMC had LLNM only. Male, age ≤ 40 years, tumor largest diameter ≥ 5 mm, multifocal, non-uniform echoic distribution, the sum of the maximum diameter of multifocal in a unilateral lobe ≥ 8.5 mm, tumors in the lower pole location were prone to CLNM. Ultrasound mix-echo, the sum of the maximum diameter of the multifocal ≥ 10.75 mm, tumors in the upper pole location were extremely prone to LLNM. T3 were prone to LLNM or skip LLNM. CONCLUSIONS According to the clinicopathological characteristics of PTMC, the cervical lymph nodes should be correctly evaluated to guide the surgical treatment.
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Affiliation(s)
- Y. Luo
- West China School of Medicine, Sichuan University, Sichuan, China
| | - Y. Zhao
- Department of General Surgery, Zhang jia-gang First People’s Hospital, Jiangsu, China
| | - K. Chen
- Department of General Surgery, Zhang jia-gang First People’s Hospital, Jiangsu, China
| | - J. Shen
- Nanjing Medical University, Jiangsu, China
| | - J. Shi
- Department of Surgical Oncology, Hangzhou First People’s Hospital, Nanjing Medical University, No. 261, Huansha Road, Shangcheng district, Hangzhou, 310006 Zhejiang China
| | - S. Lu
- Zhejiang Chinese Medical University, Zhejiang, China
| | - J. Lei
- Thyroid Surgery, West China Hospital of Sichuan University, Chengdu, China
| | - Z. Li
- West China School of Medicine, Sichuan University, Sichuan, China
| | - D. Luo
- Department of Surgical Oncology, Hangzhou First People’s Hospital, Nanjing Medical University, No. 261, Huansha Road, Shangcheng district, Hangzhou, 310006 Zhejiang China
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Che Y, Taylor D, Luo D, Maldonado LY, Wang M, Wevill S, Vahdat H, Han X, Halpern V, Dorflinger L, Steiner MJ. Cohort study to evaluate efficacy, safety and acceptability of a two-rod contraceptive implant during third, fourth and fifth year of product use in China. Contracept X 2019; 1:100008. [PMID: 32494773 PMCID: PMC7252427 DOI: 10.1016/j.conx.2019.100008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 05/08/2019] [Accepted: 05/14/2019] [Indexed: 11/26/2022] Open
Abstract
Objective Sino-implant (II) is a contraceptive implant approved for 4 years of use in China. We evaluated the contraceptive efficacy during the third, fourth and fifth year, and assessed additional pharmacokinetics (PK), safety, and acceptability endpoints. Study design We enrolled a cohort of 255 current Sino-Implant (II) users entering their third year and a second cohort of 243 users entering their fourth year. We followed these two cohorts for 12 and 24 months, respectively. To characterize PK endpoints (i.e. levonorgestrel (LNG), sex hormone binding globulin and free LNG index) over 5 years, we collected blood samples in a subset of 50 participants we followed during the third, fourth and fifth year. We also enrolled small cohorts (n = 20) of Sino-implant (II) users entering their sixth month and second year and followed them each for up to 6 months. Our primary efficacy measures were the pregnancy Pearl Indices during Year 3 and 4. Secondary objectives included assessments of PK, safety, acceptability and efficacy in the fifth year. Results We recorded four pregnancies, with a higher pregnancy rate during Year 3 [1.34 (95% CI: 0.28–3.93)] than Year 4 [0.44 (95% CI: 0.01–2.47)] or Year 5 [0.00 (95% CI: 0.00–2.02)]. The overall pregnancy rate for the third, fourth and fifth years of product use was 0.63 per 100 WY; 95% CI: (0.17–1.62). Mean LNG concentrations remained well above 200 pg/mL (Year 3 = 280.9; Year 4 = 233.6; Year 5 = 270.6). Most participants (93.7%) described their bleeding pattern as acceptable. Conclusion Sino-implant (II) is a highly effective contraceptive method in this population of Chinese women over 5 years. Implications Sino-implant (II) is a highly effective contraceptive method with an estimated Pearl Index of less than 1% over the third, fourth and fifth years of use in a population of Chinese women of reproductive age.
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Affiliation(s)
- Y Che
- Key Laboratory of Reproduction Regulation of NPFPC (SIPPR, IRD, Fudan University), Shanghai 200032, China
| | - D Taylor
- Contraceptive Technology Innovation Division, FHI 360, 359 Blackwell Street, Durham, NC 27701, USA
| | - D Luo
- Contraceptive Technology Innovation Division, FHI 360, 359 Blackwell Street, Durham, NC 27701, USA
| | - L Y Maldonado
- Contraceptive Technology Innovation Division, FHI 360, 359 Blackwell Street, Durham, NC 27701, USA
| | - M Wang
- Contraceptive Technology Innovation Division, FHI 360, 359 Blackwell Street, Durham, NC 27701, USA
| | - S Wevill
- Contraceptive Technology Innovation Division, FHI 360, 359 Blackwell Street, Durham, NC 27701, USA
| | - H Vahdat
- Contraceptive Technology Innovation Division, FHI 360, 359 Blackwell Street, Durham, NC 27701, USA
| | - X Han
- Henan Provincial Research Institute for Population and Family Planning, Henan, 450002, China
| | - V Halpern
- Contraceptive Technology Innovation Division, FHI 360, 359 Blackwell Street, Durham, NC 27701, USA
| | - L Dorflinger
- Contraceptive Technology Innovation Division, FHI 360, 359 Blackwell Street, Durham, NC 27701, USA
| | - M J Steiner
- Contraceptive Technology Innovation Division, FHI 360, 359 Blackwell Street, Durham, NC 27701, USA
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Swanson HE, Heckel BR, Bass CD, Bass TD, Dawkins JM, Horton JC, Luo D, Snow WM, Walbridge SB, Crawford BE, Gan K, Micherdzinska AM, Huffer C, Markoff DM, Mumm HP, Nico JS, Sarsour M, Sharapov EI, Zhumabekova V. Experimental upper bound and theoretical expectations for parity-violating neutron spin rotation in 4He. Phys Rev C 2019; 100:10.1103/PhysRevC.100.015204. [PMID: 35005330 PMCID: PMC8739807 DOI: 10.1103/physrevc.100.015204] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Neutron spin rotation is expected from quark-quark weak interactions in the standard model, which induce weak interactions among nucleons that violate parity. We present the results from an experiment searching for the effect of parity violation via the spin rotation of polarized neutrons in a liquid 4He medium. The value for the neutron spin rotation angle per unit length in 4He, d ϕ / d z = [ + 2.1 ± 8.3 (stat.) - 0.2 + 2.9 (sys.) ] × 10 - 7 rad/m, is consistent with zero. The result agrees with the best current theoretical estimates of the size of nucleon-nucleon weak amplitudes from other experiments and with the expectations from recent theoretical approaches to weak nucleon-nucleon interactions. In this paper we review the theoretical status of parity violation in then → + 4He system and discuss details of the data analysis leading to the quoted result. Analysis tools are presented that quantify systematic uncertainties in this measurement and that are expected to be essential for future measurements.
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Affiliation(s)
- H E Swanson
- University of Washington and Center for Experimental Nuclear Physics and Astrophysics, Box 354290, Seattle, Washington 98195, USA
| | - B R Heckel
- University of Washington and Center for Experimental Nuclear Physics and Astrophysics, Box 354290, Seattle, Washington 98195, USA
| | - C D Bass
- LeMoyne College, 1419 Salt Springs Road, Syracuse, New York 13214, USA
| | - T D Bass
- Indiana University and Center for the Exploration of Energy and Matter, 2401 Milo B. Sampson Lane, Bloomington, Indiana 47408, USA
| | - J M Dawkins
- Indiana University and Center for the Exploration of Energy and Matter, 2401 Milo B. Sampson Lane, Bloomington, Indiana 47408, USA
| | - J C Horton
- Indiana University and Center for the Exploration of Energy and Matter, 2401 Milo B. Sampson Lane, Bloomington, Indiana 47408, USA
| | - D Luo
- Indiana University and Center for the Exploration of Energy and Matter, 2401 Milo B. Sampson Lane, Bloomington, Indiana 47408, USA
| | - W M Snow
- Indiana University and Center for the Exploration of Energy and Matter, 2401 Milo B. Sampson Lane, Bloomington, Indiana 47408, USA
| | - S B Walbridge
- Indiana University and Center for the Exploration of Energy and Matter, 2401 Milo B. Sampson Lane, Bloomington, Indiana 47408, USA
| | - B E Crawford
- Gettysburg College, 300 North Washington Street, Gettysburg, Pennsylvania 17325, USA
| | - K Gan
- The George Washington University, 2121 I Street N.W., Washington, DC 20052, USA
| | - A M Micherdzinska
- The George Washington University, 2121 I Street N.W., Washington, DC 20052, USA
| | - C Huffer
- North Carolina State University, 2401 Stinson Drive, Raleigh, North Carolina 27695, USA
| | - D M Markoff
- North Carolina Central University/TUNL, 1801 Fayetteville Street, Durham, North Carolina 27707, USA
| | - H P Mumm
- National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, USA
| | - J S Nico
- National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, USA
| | - M Sarsour
- Georgia State University, 29 Peachtree Center Avenue, Atlanta, Georgia 30303-4106, USA
| | - E I Sharapov
- Joint Institute for Nuclear Research, Joliot-Curie 6, 141980 Dubna, Russia
| | - V Zhumabekova
- Al-Farabi Kazakh National University, Al-Farabi Avenue 71, 050038 Almaty, Kazakhstan
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Meng ZY, Zhang JY, Zhang ZG, Luo D, Yang XM. [Immunogenicity of inacitivated quadrivalent influenza vaccine in adults aged 18-64 years: A systematic review and Meta-analysis]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 39:1636-1641. [PMID: 30572392 DOI: 10.3760/cma.j.issn.0254-6450.2018.12.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the immunogenicity of inactivated quadrivalent influenza vaccine (QIV) in adults aged 18-64 years, through a Meta-analysis. Methods: Literature was retrieved by searching the Medline, Cochrane Library, Science Direct in the past decade. All the studies were under random control trial (RCT) and including data related to immunogenicity which involving sero-protection rate (SPR) and sero-conversion rate (SCR) of the QIV, versus inactivated trivalent influenza vaccine (TIV) in the population aged 18 to 64. Revman 5.3 software was employed to manipulate the pooled date of the included literature. Result: A total of 8 studies for the SPR and SCR of the shared strains (two A lineage and one B lineage) were included. There appeared no significant differences in the response rates between the two vaccines. As for QIV versus TIV (B/Yamagata), the pooled RR of the SPR for B/Victoria was 1.28 (95%CI: 1.08-1.51, P<0.05), with the pooled RR of the SCR for B/Victoria as 1.94 (95%CI: 1.50-2.50, P<0.05). For QIV versus TIV (B/Victoria), the pooled RR of the SPR for B/Yamagata as 1.10 (95%CI: 1.02-1.18, P<0.05), and the pooled RR of SCR for B/Yamagata as 1.99 (95%CI: 1.34-2.97, P<0.05). Conclusion: In the population aged 18-64 years, inactivated QIV was equivalently immunogenic against the shared three strains included in the activated TIV while a superior immunogenic effect was noticed in the vaccine strain which did not include the inactivated QIV.
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Affiliation(s)
- Z Y Meng
- National Engineering Technology Research Center of Combination Vaccines, Wuhan 430207, China; Wuhan Institute of Biological Products, Wuhan 430207, China
| | - J Y Zhang
- National Engineering Technology Research Center of Combination Vaccines, Wuhan 430207, China; Wuhan Institute of Biological Products, Wuhan 430207, China
| | - Z G Zhang
- National Engineering Technology Research Center of Combination Vaccines, Wuhan 430207, China; Wuhan Institute of Biological Products, Wuhan 430207, China
| | - D Luo
- National Engineering Technology Research Center of Combination Vaccines, Wuhan 430207, China; Wuhan Institute of Biological Products, Wuhan 430207, China
| | - X M Yang
- National Engineering Technology Research Center of Combination Vaccines, Wuhan 430207, China
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Hua X, Chen L, Zhu Q, Hu W, Lin C, Long Z, Wen W, Sun X, Lu Z, Chen Q, Luo D, Sun R, Mo H, Tang L, Zhang W, He Z, Mai H, Lin H, Guo L. Efficacy of controlled-release oxycodone for reducing pain due to oral mucositis in nasopharyngeal carcinoma patients treated with concurrent chemoradiotherapy: A prospective clinical trial. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy438.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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