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Li GQ, Cong DW, Sun P, Meng X. Aβ1-42 regulates astrocytes through JNK/AP-1 pathway. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2019; 22:2015-2021. [PMID: 29687857 DOI: 10.26355/eurrev_201804_14730] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE In Alzheimer's disease (AD), astrocytes are generally found in the surrounding of senile plaques participating in the production of phagocytosis and the removal of toxic compounds such as Aβ. This study aimed at investigating the effect of Aβ1-42 on astrocytes. MATERIALS AND METHODS Cellular viability of primary cultured astrocytes was analyzed using CCK-8 assay. Quantitative Real-time PCR was used to assess the mRNA expression of JNK and AP-1. The proteins of JNK/AP-1 pathway were investigated using Western blot. RESULTS Our findings showed that Aβ1-42 inhibited cell viability and promoted apoptosis in astrocytes in primary culture. Additionally, Aβ1-42 increased the mRNA expression level of AP-1, but had no effect on the expression of JNK. Furthermore, Aβ1-42 increased the protein expression of p-JNK, p-c-jun and Fra-1 and the ratio of p-c-jun/c-jun and p-JNK/JNK. CONCLUSIONS We showed that Aβ1-42 promoted cell apoptosis in astrocytes in primary culture. Furthermore, Aβ1-42 activated JNK/AP-1 pathway through promoting the phosphorylation of JNK, c-jun and Fra-1 expression, then inducing cell apoptosis.
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Ji KX, Cui F, Qu D, Sun RY, Sun P, Chen FY, Wang SL, Sun HS. MiR-378 promotes the cell proliferation of non-small cell lung cancer by inhibiting FOXG1. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2019; 22:1011-1019. [PMID: 29509249 DOI: 10.26355/eurrev_201802_14383] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To identify the functioning mode of miR-378 on non-small cell lung cancer (NSCLC) and provide therapeutic targets for NSCLC. PATIENTS AND METHODS Expression levels of miR-378 in human NSCLC tissue samples and NSCLC-derived cell lines were measured by using quantitative Real-time polymerase chain reaction (PCR). Cell proliferation capacity was assessed by methyl thiazolyl tetrazolium (MTT) assay and colony formation assay. Cell apoptosis and cell cycle distribution were identified by flow cytometry. Downstream target gene was confirmed by using luciferase and Western blotting assays. RESULTS MiR-378 was significantly elevated in NSCLC tissues when compared with para-carcinoma tissues (n=42). Decreased-miR-378 could attenuate cell proliferation capacity, as well as promoted cell apoptosis and induced cell cycle arrest at G0/G1 phase. FOXG1 was chosen as the target gene of miR-378 by bioinformatics analysis and luciferase reporter assay. Moreover, restoration of miR-378 could impair the tumor suppression role of downregulated-miR-378 on NSCLC growth. CONCLUSIONS Decreased-miR-378 exerted tumor-suppressive effects on NSCLC growth via targeting FOXG1 in vitro, which provided an innovative and candidate target for diagnosis and treatment of NSCLC.
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Reckamp K, Nieva J, Taylor A, Thakrar B, Wong J, Potter D, Bakker N, Rubinstein W, Sun P. P1.01-105 US Real-World Management of EGFR-Mutated Advanced NSCLC: Prescribing and Attrition Data from First-To-Second-Line Treatment. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.820] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Nieva J, Reckamp K, Taylor A, Thakrar B, Wong J, Potter D, Bakker N, Rubinstein W, Sun P. P1.01-96 US Real-World Management of EGFR-Mutated Advanced NSCLC: Survival After First-Line EGFR-Tyrosine Kinase Inhibitor Treatment. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Fernandez J, Huber K, Webb C, Rouzard K, Tamura M, Wang Y, Liao Z, Sun P, Nie J, Zhang Z, Stock M, Stock J, Perez E. LB1113 TIRACLE™ and ACTIVITIS™: A novel anti-aging blend. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.06.079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Gong W, Su Y, Liu A, Liu J, Sun D, Jiang T, Xiang J, Chi C, Sun P. Clinical characteristics and treatments of patients with alpha-fetoprotein producing gastric carcinoma. Neoplasma 2019; 65:326-330. [PMID: 29788728 DOI: 10.4149/neo_2018_170207n84] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 05/09/2017] [Indexed: 11/08/2022]
Abstract
Alpha-fetoprotein (AFP) is a well-known tumor marker of hepatic carcinoma and yolk sac tumor. Alpha-fetoprotein producing gastric carcinoma (AFPGC) is a rare type of gastric cancer with high malignancy and poor prognosis, which make it different from other types of gastric cancer. This rare gastric cancer patient subgroup is likely frequently misdiagnosed which may be related to lack of knowledge of the disease. The purpose of this article is to summarize the mechanism of AFP positive gastric cancer, classification, biological behavior and treatment, in order to assist clinical practitioners to detect AFPGC earlier and treat it better. Previous studies have showed that AFPGC has a complex pathophysiology mechanism. AFPGC is more aggressive and characterized by stronger proliferation, neovascularization, lymphatic invasion and distant metastasis. Furthermore, so far there has been no standard treatment for patients with AFPGC. Nevertheless, our present study summarizes some effective treatments based on previous research outcome. In conclusion, the present study demonstrates that the importance of detecting AFP routinely in serum and tissues in gastric cancer cases, which will greatly improve the diagnosis rate of AFPGC, and in regards to treatment, surgery, chemotherapy, targeted therapy and interventional treatment may have positive impacts on AFPGC treatment outcome. However, further study with a larger sample is required to confirm the reliability and validity of these methods.
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Zhu GC, Xiao DJ, Sun P. [Narrow-band imaging for overcoming the microvascular pattern hidden under the plaque of the vocal fold leukoplakia]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2019; 33:542-545. [PMID: 31163531 DOI: 10.13201/j.issn.1001-1781.2019.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Indexed: 11/12/2022]
Abstract
Objective:To explore the application of narrowband imaging (NBI) in overcoming the microvascular pattern hidden under the plaque of vocal fold leukoplakia. Method:According to the morphology of intraepithelial papillary capillary loops (IPCL) around the plaque of vocal cord leukoplakia under NBI endoscopy,89 patients with microvascular morphology covered by plaque were divided into different groups. Subepithelial cordectomy was performed in 20 cases of benign group, subligamental cordectomy was performed in 45 cases of suspected malignant group, and transmuscular cordectomy was performed in 24 cases of malignant group, respectively. The lesions of vocal fold were biopsied with suspension micro-laryngoscope, and pathological examinations were also observed. Result:Pathological diagnoses showed that there were 10 cases of squamous epithelial hyperplasia, 8 cases of mild dysplasia, 21 cases of moderate dysplasia, 41 cases of severe dysplasia and carcinoma in situ, and 9 cases of invasive cancer, respectively. Spearman's analysis showed that there was a stronge positive correlation between the microvascular pattern of peripheral regions surrounding the plaque by NBI endoscopy and malignant degree of pathological classification(r=0.725, P<0.01). Conclusion:NBI endoscopy can overcome the "umbrella effect" of vocal cord leukoplakia. The microvascular morphology of the mucosa around the leukoplakia has a good correlation with final pathological diagnoses, and NBI endoscopy is helpful to determine the biopsy depth of the vocal cord leukoplakia.
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Jones CW, Choi DS, Sun P, Chiu YF, Lipman JD, Lyman S, Bostrom MPG, Sculco PK. Clinical and design factors influence the survivorship of custom flange acetabular components. Bone Joint J 2019; 101-B:68-76. [PMID: 31146558 DOI: 10.1302/0301-620x.101b6.bjj-2018-1455.r1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS Custom flange acetabular components (CFACs) are a patient-specific option for addressing large acetabular defects at revision total hip arthroplasty (THA), but patient and implant characteristics that affect survivorship remain unknown. This study aimed to identify patient and design factors related to survivorship. PATIENTS AND METHODS A retrospective review of 91 patients who underwent revision THA using 96 CFACs was undertaken, comparing features between radiologically failed and successful cases. Patient characteristics (demographic, clinical, and radiological) and implant features (design characteristics and intraoperative features) were collected. There were 74 women and 22 men; their mean age was 62 years (31 to 85). The mean follow-up was 24.9 months (sd 27.6; 0 to 116). Two sets of statistical analyses were performed: 1) univariate analyses (Pearson's chi-squared and independent-samples Student's t-tests) for each feature; and 2) bivariable logistic regressions using features identified from a random forest analysis. RESULTS Radiological failure and revision rates were 23% and 12.5%, respectively. Revisions were undertaken at a mean of 25.1 months (sd 26.4) postoperatively. Patients with radiological failure were younger at the time of the initial procedure, were less likely to have a diagnosis of primary osteoarthritis (OA), were more likely to have had ischial screws in previous surgery, had fewer ischial screw holes in their CFAC design, and had more proximal ischial fixation. Random forest analysis identified the age of the patient and the number of locking and non-locking screws used for inclusion in subsequent bivariable logistic regression, but only age (odds ratio 0.93 per year) was found to be significant. CONCLUSION We identified both patient and design features predictive of CFAC survivorship. We found a higher rate of failure in younger patients, those whose primary diagnosis was not OA, and those with more proximal ischial fixation or fewer ischial fixation options. Cite this article: Bone Joint J 2019;101-B(6 Supple B):68-76.
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Zhai XQ, Meng FM, Hu SF, Sun P, Xu W. Mechanism of LncRNA ROR promoting prostate cancer by regulating Akt. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2019; 23:1969-1977. [PMID: 30915739 DOI: 10.26355/eurrev_201903_17235] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate the expression of long-chain non-coding RNA ROR in prostate cancer (PCa), and to further study its possible underlying mechanisms in prostate cancer. PATIENTS AND METHODS Quantitative Real-time polymerase chain reaction (qRT-PCR) was performed to detect the level of lncRNA ROR in 42 pairs of PCa tissues and adjacent normal tissues, and the correlation between ROR level and PCa pathological parameters was also evaluated. Besides, ROR expression in PCa cells was further verified by qRT-PCR, and ROR knockdown model was constructed using lentivirus in PCa cell lines including PC-3 and Lncap. Cell counting kit-8 (CCK-8), transwell invasion and cell scratch assay were used to analyze the effect of ROR on the biological function of PCa cells and explore its underlying mechanism. RESULTS QRT-PCR results demonstrated that ROR levels in PCa tissues were notably higher than that in normal ones, and the difference was statistically significant. Compared with patients with lowly-expressed ROR, patients with high ROR level had relatively more advanced tumor stage, higher incidence of lymph node or distant metastasis. Similarly, compared with negative control group, the cell proliferation, invasion and metastasis ability of the ROR knockdown group was significantly decreased. In addition, qRT-PCR results indicated that the expression of Akt, the key protein in the Akt signaling pathway, was significantly reduced in si-ROR cell lines. Furthermore, rescue experiment revealed that there was a mutual regulation between ROR and Akt. CONCLUSIONS LncRNA ROR expression is strikingly increased in PCa tissues or cells, and is considerably associated with PCa stage, lymph node and distant metastasis. Additionally, LncRNA ROR may promote PCa cell proliferation, invasion and migration by regulating Akt.
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Kotsopoulos J, Zaman T, Lubinski J, Sun P, Salmena L, Narod SA. Abstract P1-09-03: Withdrawn. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p1-09-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
This abstract was withdrawn by the authors.
Citation Format: Kotsopoulos J, Zaman T, Lubinski J, Sun P, Salmena L, Narod SA. Withdrawn [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P1-09-03.
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Wei JY, Wang J, Liu W, Zhang KZ, Sun P. Short communication: Effects of different selenium supplements on rumen fermentation and apparent nutrient and selenium digestibility of mid-lactation dairy cows. J Dairy Sci 2019; 102:3131-3135. [PMID: 30738681 DOI: 10.3168/jds.2018-15455] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 12/11/2018] [Indexed: 12/31/2022]
Abstract
The aim of this study was to evaluate the dose-dependent effects of a hydroxy-analog of selenomethionine (HMSeBA) on rumen fermentation, apparent nutrient digestibility, and total selenium absorption in mid-lactation dairy cows, and to compare the effects with those of sodium selenite (SS). Fifty mid-lactation dairy cows with similar milk yields, days in milk, and parity were randomly assigned to 1 of 5 treatments according to a randomized complete block design. The cows were fed a basal diet containing 0.06 mg/kg dry matter (DM) of Se (control) or the same basal diet supplemented with SS, yielding 0.3 mg of Se/kg of DM (SS-0.3), or HMSeBA, yielding 0.1, 0.3, or 0.5 mg of Se/kg of DM (SO-0.1, SO-0.3, and SO-0.5, respectively), during the experimental period. The final content of Se in control, SS-0.3, SO-0.1, SO-0.3, and SO-0.5 was 0.06, 0.34, 0.15, 0.33, and 0.52 mg of Se/kg of DM. The experiment lasted for 10 wk, with a pretrial period of 2 wk. Supplementation with HMSeBA altered rumen fermentation by linearly increasing total volatile fatty acids and the molar proportions of propionate and butyrate but decreasing rumen pH, ammonia content, and the ratio of acetate to propionate. Compared with SS, HMSeBA enhanced the molar proportion of propionate in the rumen and the apparent digestibility of crude protein, neutral detergent fiber, acid detergent fiber, and selenium. We demonstrated that HMSeBA promoted rumen fermentation, apparent nutrient digestibility, and selenium absorption, implying that HMSeBA has a greater apparent absorption than SS.
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Hartley NJ, Vorberger J, Döppner T, Cowan T, Falcone RW, Fletcher LB, Frydrych S, Galtier E, Gamboa EJ, Gericke DO, Glenzer SH, Granados E, MacDonald MJ, MacKinnon AJ, McBride EE, Nam I, Neumayer P, Pak A, Rohatsch K, Saunders AM, Schuster AK, Sun P, van Driel T, Kraus D. Liquid Structure of Shock-Compressed Hydrocarbons at Megabar Pressures. PHYSICAL REVIEW LETTERS 2018; 121:245501. [PMID: 30608736 DOI: 10.1103/physrevlett.121.245501] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 10/15/2018] [Indexed: 06/09/2023]
Abstract
We present results for the ionic structure in hydrocarbons (polystyrene, polyethylene) that were shock compressed to pressures of up to 190 GPa, inducing rapid melting of the samples. The structure of the resulting liquid is then probed using in situ diffraction by an x-ray free electron laser beam, demonstrating the capability to obtain reliable diffraction data in a single shot, even for low-Z samples without long range order. The data agree well with ab initio simulations, validating the ability of such approaches to model mixed samples in states where complex interparticle bonds remain, and showing that simpler models are not necessarily valid. While the results clearly exclude the possibility of complete carbon-hydrogen demixing at the conditions probed, they also, in contrast to previous predictions, indicate that diffraction is not always a sufficient diagnostic for this phenomenon.
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Chen Y, Sun P, Zhang Y, Ye Y. Fluorescence anisotropy analysis of comb-type grafted poly( N,N-diethylacrylamide-co-acrylic acid)-g-poly( N,N-diethylacrylamide) microgels labeled by acenaphthylene. J Appl Polym Sci 2018. [DOI: 10.1002/app.46742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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64
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McBride EE, White TG, Descamps A, Fletcher LB, Appel K, Condamine F, Curry CB, Dallari F, Funk S, Galtier E, Gamboa EJ, Gauthier M, Goede S, Kim JB, Lee HJ, Ofori-Okai BK, Oliver M, Rigby A, Schoenwaelder C, Sun P, Tschentscher T, Witte BBL, Zastrau U, Gregori G, Nagler B, Hastings J, Glenzer SH, Monaco G. Erratum: "Setup for meV-resolution inelastic X-ray scattering measurements and X-ray diffraction at the Matter in Extreme Conditions endstation at the Linac Coherent Light Source" [Rev. Sci. Instrum. 89, 10F104 (2018)]. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:129901. [PMID: 30599579 DOI: 10.1063/1.5084054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 12/04/2018] [Indexed: 06/09/2023]
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Sun P, Gao H. P075 Hippo-YAP Pathway Mediated Resistance to Crizotinib in ROS1-Positive Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.10.088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sun P, Chen W, Yi X, Gao PP, Yang DM. [A comparative study on early childhood caries detection by using international caries detection and assessment system-Ⅱ and WHO criteria]. ZHONGHUA KOU QIANG YI XUE ZA ZHI = ZHONGHUA KOUQIANG YIXUE ZAZHI = CHINESE JOURNAL OF STOMATOLOGY 2018; 53:725-729. [PMID: 30419651 DOI: 10.3760/cma.j.issn.1002-0098.2018.11.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Objective: To investigate and compare the sensitivities of early childhood caries detection by using international caries detection and assessment system (ICDAS)-Ⅱ and WHO criteria. Methods: A total of 449 3-year-old children from four day care kindergartens in Beijing were enrolled in this study. Both ICDAS-Ⅱ and WHO criteria were used to assess the prevalence of caries in the given subjects. The decayed, missing, and filled teeth (dmft) index scores were calculated. In ICDAS-Ⅱ system, four cut-off points (D1, D2, D3 and D4) were employed to differentiate sound and decayed teeth: D1 (score 0 as sound, scores 1-6 as caries); D2 (0-1 sound, 2-6 caries); D3 (0-2 sound, 3-6 caries) and D4 (0-3 sound, 4-6 caries). SPSS software was used to analyze the data to decide the significance of differences. Results: The caries prevalence using ICDAS-Ⅱ were 76.6% (344/449), 71.3% (320/449), 52.8% (237/449) and 46.1% (207/449) for D1 to D4, respectively; the corresponding mean dmft scores were 4.95±4.85, 4.41±4.77, 2.54±3.69 and 1.97±3.10. The sites with highest caries prevalence were occlusal surface of mandibular molars in groups of D1 and D2 and proximal surface of maxillary anterior teeth in groups D3 and D4. In contrast, the caries prevalence was 48.8% (219/449) and the mean dmft was 2.27±3.54 when using WHO criteria, significantly lower than the detection rates by using ICDAS-Ⅱ (D1-D2) (P=0.00). This suggested that ICDAS-Ⅱ system was a more sensitive method in detecting early childhood caries. Conclusions: ICDAS-Ⅱ system might be superior in detection of incipient caries and be of specific value in prevention of early childhood caries.
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Gray J, Thakrar B, Sun P, Maclachlan S, Chehab N, Potter D. Treatment (tx) patterns in patients (pts) with lung cancer starting 1st or 2nd generation (1G/2G) EGFR-TKI: A US insurance claims database analysis. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy425.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Sun P, Gao H. Hippo-YAP pathway mediated resistance to crizotinib in ROS1-positive lung cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy425.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Xing L, Wang J, Li L, Ma Z, Hu C, Zhang H, Shan L, Chen Z, Zhang J, Zhou Q, Gao S, Ma X, Sun P, Ren Q, Wu M, Wu J, Li J, Yao J, Ma H, Wang W, Yao W, Wang D, Kang J, Li G, Wang X, Zhu W, Wang J, Yu J. MA02.06 A Randomized, Double-Blind, Placebo-Controlled Trial of Chemotherapy Combined with Yangzheng Xiaoji in Advanced NSCLC. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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McBride EE, White TG, Descamps A, Fletcher LB, Appel K, Condamine FP, Curry CB, Dallari F, Funk S, Galtier E, Gamboa EJ, Gauthier M, Goede S, Kim JB, Lee HJ, Ofori-Okai BK, Oliver M, Rigby A, Schoenwaelder C, Sun P, Tschentscher T, Witte BBL, Zastrau U, Gregori G, Nagler B, Hastings J, Glenzer SH, Monaco G. Setup for meV-resolution inelastic X-ray scattering measurements and X-ray diffraction at the Matter in Extreme Conditions endstation at the Linac Coherent Light Source. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:10F104. [PMID: 30399942 DOI: 10.1063/1.5039329] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 06/20/2018] [Indexed: 06/08/2023]
Abstract
We describe a setup for performing inelastic X-ray scattering and X-ray diffraction measurements at the Matter in Extreme Conditions (MEC) endstation of the Linac Coherent Light Source. This technique is capable of performing high-, meV-resolution measurements of dynamic ion features in both crystalline and non-crystalline materials. A four-bounce silicon (533) monochromator was used in conjunction with three silicon (533) diced crystal analyzers to provide an energy resolution of ∼50 meV over a range of ∼500 meV in single shot measurements. In addition to the instrument resolution function, we demonstrate the measurement of longitudinal acoustic phonon modes in polycrystalline diamond. Furthermore, this setup may be combined with the high intensity laser drivers available at MEC to create warm dense matter and subsequently measure ion acoustic modes.
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Sun P, Qian TY, Ji XY, Wu C, Yan YS, Qi RR. HDPE/UHMWPE composite foams prepared by compression molding with optimized foaming capacity and mechanical properties. J Appl Polym Sci 2018. [DOI: 10.1002/app.46768] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Cardinal M, Kantaridis C, Zhu T, Sun P, Pittman DD, Murphy JE, Arkin S. A first-in-human study of the safety, tolerability, pharmacokinetics and pharmacodynamics of PF-06741086, an anti-tissue factor pathway inhibitor mAb, in healthy volunteers. J Thromb Haemost 2018; 16:1722-1731. [PMID: 29908043 DOI: 10.1111/jth.14207] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Indexed: 01/31/2023]
Abstract
Essentials Tissue factor pathway inhibitor (TFPI) is an antagonist of FXa and the TF-FVIIa complex. PF-06741086 is an IgG1 monoclonal antibody that targets the Kunitz-2 domain of TFPI. Single doses of PF-06741086 were evaluated in a phase 1 study in healthy volunteers. Data from this study support further investigation of PF-06741086 in individuals with hemophilia. SUMMARY Background Tissue factor pathway inhibitor (TFPI) is a protease inhibitor of the tissue factor-activated factor VII complex and activated FX. PF-06741086 is a mAb that targets TFPI to increase clotting activity. Objectives This study was a randomized, double-blind, sponsor-open, placebo-controlled, single intravenous or subcutaneous dose escalation study to evaluate the safety, tolerability, pharmacokinetics and pharmacodynamics of PF-06741086. Patients/Methods Volunteers who provided written informed consent were assigned to cohorts with escalating dose levels. Safety endpoints included treatment-emergent adverse events (TEAEs), infusion/injection site reactions, vital signs, electrocardiogram, and coagulation and hematology laboratory parameters. Pharmacokinetic (PK) and pharmacodynamic (PD) endpoints included exposures of PF-06741086 in plasma and measures of PF-06741086 pharmacology, respectively. Results Forty-one male volunteers were recruited overall. Thirty-two were dosed with PF-06741086 from 30 mg subcutaneously to 440 mg intravenously. All doses were safe and well tolerated. TEAEs were mild or moderate in severity, laboratory abnormalities were transient, there were no serious adverse events, there were no infusion/injection site reactions, and no dose escalation stopping criteria were met. Plasma exposures of PF-06741086 increased greater than proportionally with dose under the same dosing route. Coagulation pharmacology was demonstrated via total TFPI, dilute prothrombin time, D-dimer, prothrombin fragment 1 + 2 and thrombin generation assay parameters. Conclusions Single doses of PF-06741086 at multiple dose levels were safe and well tolerated in a healthy adult male population. The safety, PK and PD data from this study support progression to a multiple-dose study in hemophilic patients.
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MESH Headings
- Adolescent
- Adult
- Antibodies, Anti-Idiotypic/blood
- Antibodies, Monoclonal, Humanized/adverse effects
- Antibodies, Monoclonal, Humanized/pharmacokinetics
- Antibodies, Monoclonal, Humanized/pharmacology
- Antibodies, Neutralizing/blood
- Dose-Response Relationship, Drug
- Double-Blind Method
- Fatigue/chemically induced
- Half-Life
- Hemodynamics/drug effects
- Hemostatics/administration & dosage
- Hemostatics/adverse effects
- Hemostatics/blood
- Hemostatics/pharmacology
- Humans
- Injections, Intravenous
- Injections, Subcutaneous
- Lipoproteins/antagonists & inhibitors
- Lipoproteins/blood
- Lipoproteins/immunology
- Male
- Middle Aged
- Pain/chemically induced
- Young Adult
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Gao YL, Sun P. Determination of five pyrethroid pesticides residue in liquid milk by gas chromatography using multi-walled carbon nanotubes as dispersion solid phase extraction sorbent. ACTA CHROMATOGR 2018. [DOI: 10.1556/1326.2017.00227] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Shu Y, Ye W, Gu YL, Sun P. Blockade of miR-663b inhibits cell proliferation and induces apoptosis in osteosarcoma via regulating TP73 expression. ACTA ACUST UNITED AC 2018; 119:41-46. [PMID: 29405730 DOI: 10.4149/bll_2018_009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE This study aimed to investigate the exact role of miR-663b in osteosarcoma (OS) progression and further explore the underlying molecular mechanisms. MATERIALS AND METHODS The miR-663b expression in human OS cell lines was determined by qRT-PCR, and the results suggested that miR-663b was highly expressed in human OS cells. TargetScan was used to predict the potential targets of miR-663b, and the prediction was confirmed by dual-luciferase reporter assay. To investigate the role of miR-663b in OS, miR-663b was down-regulated in U2OS cells using miR-663b inhibitor. CCK8 and flow cytometry were preformed to investigate the proliferation and apoptosis of U2OS cells. Moreover, qRT-PCR and western blot analysis were performed to measure the mRNA and protein expression. RESULTS We found that miR-663b directly targets TP73 and negatively regulates TP73 expression. MiR-663b inhibitor significantly decreased the proliferation ability of U2OS cells, while the percentage of apoptotic cells was markedly increased. The level of Bcl-2 was notably inhibited by miR-663b inhibitor, while Bax expression was significantly enhanced. Moreover, miR-663b down-regulation promoted p53 and p21 expression in U2OS cells. CONCLUSIONS MiR-663b down-regulation represses proliferation and induces apoptosis in OS by targeting TP73. Therefore, we provide a potential therapeutic target for OS treatment (Fig. 6, Ref. 27).
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Sun P, Haensel D, Ma X, Zhou Y, Pan Y, Dai X. 1035 Loss of transcription factor Ovol1 enhances skin inflammation in animal models of atopic dermatitis and psoriasis. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Haensel D, Sun P, MacLean A, Jin S, Ma X, Nie Q, Dai X. 1458 EMT-inhibiting transcription factor Ovol2 regulates directional cell migration and proliferation in adult skin epithelia. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Qian L, Jiang C, Sun P, Xu D, Wang Y, Fu M, Zhong S, Ouyang J. A comparison of the biomechanical stability of pedicle-lengthening screws and traditional pedicle screws: an in vitro instant and fatigue-resistant pull-out test. Bone Joint J 2018; 100-B:516-521. [PMID: 29629595 DOI: 10.1302/0301-620x.100b4.bjj-2017-0877.r1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Aims The aim of this study was to compare the peak pull-out force (PPF) of pedicle-lengthening screws (PLS) and traditional pedicle screws (TPS) using instant and cyclic fatigue testing. Materials and Methods A total of 60 lumbar vertebrae were divided into six groups: PLS submitted to instant pull-out and fatigue-resistance testing (groups A1 and A2, respectively), TPS submitted to instant pull-out and fatigue-resistance testing (groups B1 and B2, respectively) and PLS augmented with 2 ml polymethylmethacrylate, submitted to instant pull-out and fatigue-resistance testing (groups C1 and C2, respectively). The PPF and normalized PPF (PPFn) for bone mineral density (BMD) were compared within and between all groups. Results In all groups, BMD was significantly correlated with PPF (r = 0.83, p < 0.001). The PPFn in A1 was significantly less than in B1 (p = 0.006) and C1 (p = 0.002). The PPFn of A2 was significantly less than in B2 (p < 0.001) and C2 (p < 0.001). The PPFn in A1, B1, and C1 was significantly greater than in A2 (p = 0.002), B2 (p = 0.027), and C2 (p = 0.003). There were no significant differences in PPFn between B1 and C1, or between B2 and C2. Conclusion Pedicle lengthening screws with cement augmentation can provide the same fixation stability as traditional pedicle screws and may be a viable clinical option. Cite this article: Bone Joint J 2018;100-B:516-21.
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Metcalfe KA, Lubinski J, Gronwald J, Huzarski T, McCuaig J, Lynch HT, Karlan B, Foulkes WD, Singer CF, Neuhausen SL, Senter L, Eisen A, Sun P, Narod SA. The risk of breast cancer in BRCA1 and BRCA2 mutation carriers without a first-degree relative with breast cancer. Clin Genet 2018; 93:1063-1068. [PMID: 29206279 DOI: 10.1111/cge.13191] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 11/21/2017] [Accepted: 11/30/2017] [Indexed: 12/30/2022]
Abstract
The objective of this study was to estimate the lifetime risk of breast cancer in women with a BRCA1 or BRCA2 mutation with and without at least 1 first-degree relative with breast cancer. A total of 2835 women with a BRCA1 or BRCA2 mutation were followed. Age- and gene-specific breast cancer rates were calculated. The relative risks of breast cancer for subjects with a family history of breast cancer, compared to no family history were calculated. The mean age at baseline was 41.1 years, and they were followed for a mean of 6.0 years. The estimated penetrance of breast cancer to age 80 years was 60.8% for BRCA1 and 63.1% for BRCA2. For all BRCA carriers, the penetrance of breast cancer to age 80 for those with no first-degree relative with breast cancer was 60.4% and 63.3% for those with at least 1 first-degree relative with breast cancer. The risk of breast cancer for BRCA carriers with no first-degree relative with breast cancer is substantial, and as a result, clinical management for these women should be the same as those for women with an affected relative.
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Sun P, Sun XF. [Primary mandibular meningioma: a case report]. ZHONGHUA KOU QIANG YI XUE ZA ZHI = ZHONGHUA KOUQIANG YIXUE ZAZHI = CHINESE JOURNAL OF STOMATOLOGY 2018; 53:127-128. [PMID: 29429235 DOI: 10.3760/cma.j.issn.1002-0098.2018.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Sun P, Gao YL, Xu C, Lian YF. Determination of six organophosphorus pesticides in water samples by three-dimensional graphene aerogel-based solid-phase extraction combined with gas chromatography/mass spectrometry. RSC Adv 2018; 8:10277-10283. [PMID: 35540481 PMCID: PMC9078834 DOI: 10.1039/c7ra13316b] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 03/05/2018] [Indexed: 11/21/2022] Open
Abstract
In the present study, a three-dimensional graphene aerogel (3D-GA), synthesised by chemical reduction of an aqueous solution of graphene oxides (GOs) with ethylenediaminethermal by a simple water bath method followed by freeze-drying treatment, was used for the solid-phase extraction (SPE) of six organophosphorus pesticides (OPPs) (i.e. trichlorfon, dimethoate, ethoprophos, parathion, fenitrothion and fenthion) from water samples. The target analytes were extracted using packed SPE cartridges and then eluted with tetrahydrofuran. The eluate was collected and dried with high-purity nitrogen gas at room temperature. After redissolving in acetone, the residue was analysed using gas chromatography/mass spectrometry (GC/MS). The proposed method demonstrated a good linearity between 0.5 and 500 μg L−1 with the correlation coefficient of 0.9990–0.9998. The limits of detection (LODs) (S/N = 3) and the limits of quantification (LOQs) (S/N = 10) for the six OPPs pesticides were in the range of 0.12–0.58 μg L−1 and 0.41–1.96 μg L−1, respectively. The accuracy of the present method was evaluated by measuring the recovery of the spiked samples, which ranged from 93.8% to 104.2% with relative standard deviations (RSDs) of 1.1–5.6%. The established method was successfully applied to the determination of the target analytes in environmental water samples including tap water, river water, drinking water and lake water, demonstrating its great potential for the determination of OPPs in water. 3D graphene aerogel fabricated via chemical reduction followed by freeze-drying treatment was used as SPE sorbent to extract OPPs from water sample.![]()
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Sun P, Tang BJ. Low mtDNA variation and shallow population structure of the Chinese pomfret Pampus chinensis along the China coast. JOURNAL OF FISH BIOLOGY 2018; 92:214-228. [PMID: 29205347 DOI: 10.1111/jfb.13515] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Accepted: 11/01/2017] [Indexed: 06/07/2023]
Abstract
In the present study, population genetic structure and genetic diversity of the Chinese pomfret Pampus chinensis, along the China coast were investigated and compared with that from Indonesia using mitochondrial DNA cytochrome b gene sequences. A total of 28 variable sites (including 18 singleton sites and 10 parsimony information sites) were observed and 23 haplotypes were defined in 330 individuals from 11 localities. The haplotype diversity (HD ) of the populations ranged from 0·540 to 0·828, the nucleotide diversity (π) ranged from 0·081 to 0·295%. Pairwise FST statistics showed that significant genetic divergence occurred among populations from different geographical regions. The high dispersal capabilities, geographic segregation and ocean currents may be responsible for the present population genetic structure in this species. In addition, a population expansion event during the late Pleistocene period was inferred. The time of population expansion was estimated to occur about 117 000-169 000 years ago.
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Cybulski C, Kluźniak W, Huzarski T, Wokołorczyk D, Kashyap A, Jakubowska A, Szwiec M, Byrski T, Dębniak T, Górski B, Sopik V, Akbari MR, Sun P, Gronwald J, Narod SA, Lubiński J, Dębniak T, Dymerska D, Kurzawski G, Lubiński J, Dymerska D, Tutlewska K, Kuswik M, Rudnicka H, Scott RJ, Billings R, Pławski A, Lubinski J, Kurzawski G, Gromowski T, Kąklewski K, Marciniak W, Durda K, Lener M, Sukiennicki G, Kaczmarek K, Jaworska-Bieniek K, Paszkowska-Szczur K, Waloszczyk P, Lubiński J, Dębniak T, Gronwald J, Hemminki K, Försti A, Huzarski T, Gronwald J, Cybulski C, Oszurek O, Szwiec M, Gugała K, Stawicka M, Morawiec Z, Mierzwa T, Falco M, Janiszewska H, Kilar E, Marczyk E, Kozak-Klonowska B, Siołek M, Surdyka D, Wiśniowski R, Posmyk M, Domagała P, Byrski T, Sun P, Lubiński J, Narod SA, Imyanitov EN, Kaczmarek K, Muszyńska M, Marciniak W, Sukiennicki G, Lener M, Durda K, Jaworska-Bieniek K, Gromowski T, Prajzendanc K, Peruga N, Huzarski T, Byrski T, Gronwald J, Cybulski C, Dębniak T, Morawski A, Jakubowska A, Lubiński J, Lener MR, Scott RJ, Kluźniak W, Gronwald J, Baszuk P, Cybulski C, Wiechowska-Kozłowska A, Huzarski T, Kładny J, Pietrzak S, Soluch A, Jakubowska A, Lubiński J, Plawski A, Prajzendanc K, Jakubowska A, Lubiński J, Rashid UR, Naeemi H, Muhammad N, Lubiński J, Jakubowska A, Loya A, Yusuf MA, Savanevich A, Aszurek O, Gronwald J, Lubiński J, Mathe A, Wong-Brown M, Locke W, Stirzaker C, Braye SG, Forbes JF, Clark S, Avery-Kiejda K, Scott RJ, Tomiczek-Szwiec J, Huzarski T, Szwiec M, Gronwald J, Cybulski C, Marczyk E, Jakubowicz J, Kilar E, Sibilski R, Stawicka M, Morawiec Z, Mierzwa T, Falco M, Janiszewska H, Kozak-Klonowska B, Siołek M, Surdyka D, Wiśniowski R, Posmyk R, Domagała P, Lubiński J, Szwiec M, Tomiczek-Szwiec J, Huzarski T, Cybulski C, Lubiński J. Meeting abstracts from the Annual Conference on Hereditary Cancers 2016. Hered Cancer Clin Pract 2017. [PMCID: PMC5731602 DOI: 10.1186/s13053-017-0081-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Zhao LP, Cui W, Bai X, Wang ZB, Cheng JM, Sun P, Zhao FR. The bud banks in the typical steppe communities with different disturbance regimes. RUSS J ECOL+ 2017. [DOI: 10.1134/s1067413617060145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Sun P, Gao H, Chung J. P3.02-017 Apoptosis-Related Protein in Non-Small Cell Lung Cancer: Correlation of Clinicopathologic, Molecular Characteristics and Prognosis. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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85
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Sun P, Long J, Chen P, He Q, Gao X, Li S. Rapid onset of conjunctivitis associated with overdosing of erlotinib. J Clin Pharm Ther 2017; 43:296-298. [PMID: 29069525 DOI: 10.1111/jcpt.12641] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 10/02/2017] [Indexed: 11/28/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Erlotinib is one of the epidermal growth factor receptor (EGFR) inhibitors and is widely used as a targeted therapy for advanced non-small-cell lung cancer (NSCLC). There are a few reports regarding ocular adverse effects of erlotinib. Herein, we report a case of rapid onset of ocular toxicity associated with overdosing of erlotinib. CASE DESCRIPTION A 72-year-old male with metastatic NSCLC developed conjunctivitis after accidentally taking erlotinib at a dosage of 300 mg/day for 4 days. Before that, the patient had been taking erlotinib at the prescribed dose of 150 mg/day for 17 days. Erlotinib was discontinued for 7 days, and the conjunctivitis was successfully treated symptomatically. The adverse effect did not recur when he resumed taking erlotinib 150 mg/day, suggesting the ocular change was related to the overdosing of erlotinib. WHAT IS NEW AND CONCLUSION Awareness and close monitoring of this adverse effect are helpful for doctors and pharmacists to identify inadvertent drug overdose. Patients should be provided comprehensive education before receiving targeted therapy.
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Lubinski J, Marciniak W, Muszynska M, Huzarski T, Gronwald J, Cybulski C, Jakubowska A, Debniak T, Falco M, Kladny J, Kotsopoulos J, Sun P, Narod SA. Serum selenium levels predict survival after breast cancer. Breast Cancer Res Treat 2017; 167:591-598. [PMID: 29043463 DOI: 10.1007/s10549-017-4525-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 09/25/2017] [Indexed: 11/29/2022]
Abstract
BACKGROUND Studies have reported an inverse relationship between serum selenium levels and cancer incidence, but the impact of low serum selenium status on survival after a diagnosis of breast cancer has not been established. METHODS We obtained a blood sample from 546 women diagnosed with a first primary invasive breast cancer between 2008 and 2015 in the region of Szczecin, Poland. Blood was collected after diagnosis, but prior to treatment. Serum selenium was quantified by mass spectroscopy and each patient was assigned to one of four categories (quartiles) based on the distribution in the entire cohort. Patients were followed from diagnosis to death over a mean follow-up of 3.8 years. Vital status was obtained by linkage to the Polish National Death Registry. RESULTS The 5-year overall actuarial survival was 68.1% for women in the lowest (< 64.4 µg/L) and 82.5% for those in the highest (> 81.0 µg/L) quartile of serum selenium. In an adjusted analysis, the hazard ratio for death was 2.49 (95%CI 1.53-4.04; P = 0.0002) for patients in the lowest quartile of serum selenium, compared to those in all other quartiles. The effect of low selenium on breast cancer-specific mortality was stronger for women who were past smokers (HR 6.03; 95%CI 1.96-18.6; P = 0.0002). CONCLUSIONS This study suggests that a selenium level in excess of 64.4 µg//L might be beneficial for women undergoing treatment for breast cancer and that selenium supplementation to achieve this level may favorably impact the outcome. Further studies are needed to confirm this association and to evaluate the impact of selenium supplementation on breast cancer survival among women with low post-diagnostic selenium levels.
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Sun P, Wang J, Liu W, Bu DP, Liu SJ, Zhang KZ. Hydroxy-selenomethionine: A novel organic selenium source that improves antioxidant status and selenium concentrations in milk and plasma of mid-lactation dairy cows. J Dairy Sci 2017; 100:9602-9610. [PMID: 28987589 DOI: 10.3168/jds.2017-12610] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 08/02/2017] [Indexed: 12/24/2022]
Abstract
This study aimed to evaluate the effect of hydroxy-selenomethionine (HMSeBA), a novel organic selenium (Se) source, on milk performance, antioxidative status, and Se concentrations in the milk and plasma of mid-lactation dairy cows compared with that of sodium selenite (SS). Fifty mid-lactation dairy cows with similar days in milk, milk yield, and parity received the same basal diet containing 0.06 mg of Se/kg of DM. They were assigned to 1 of 5 treatments according to a randomized complete block design: negative control (without Se supplementation), SS supplementation (0.3 mg of Se/kg of DM; SS-0.3) or HMSeBA supplementation (0.1, 0.3, or 0.5 mg of Se/kg of DM: SO-0.1, SO-0.3, and SO-0.5, respectively). The experiment lasted for 10 wk, including a pretrial period of 2 wk. The results indicated that neither Se supplementation nor Se source affected dry matter intake, milk yield, milk composition, or blood biochemical parameters, except for milk fat percentage. Simultaneously, milk fat percentage and milk fat yield increased linearly as the quantity of HMSeBA supplementation was increased. Production of 4% FCM and ECM was elevated linearly as dietary HMSeBA increased. The SO-0.3 group showed higher serum activity of glutathione peroxidase, total antioxidant capacity, and superoxide dismutase than the SS-0.3 group, but malondialdehyde content was not affected by Se source. Furthermore, HMSeBA supplementation linearly increased the activities of serum glutathione peroxidase and superoxide dismutase, but decreased malondialdehyde content. Compared with the SS-0.3 group, the SO-0.3 group showed augmented concentrations of total Se in milk and plasma, and total Se milk-to-plasma concentration ratio. In addition, increasing doses of HMSeBA linearly increased the concentrations of total Se in the milk and plasma. This study demonstrates that HMSeBA improves antioxidant status and increases milk and plasma Se concentrations more effectively than SS, indicating that HMSeBA could replace SS as an effective organic Se source for lactating dairy cows.
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Servais L, Farrar M, Finkel R, Kirschner J, Muntoni F, Sun P, Gheuens S, Schneider E, Farwell W. Nusinersen demonstrates greater efficacy in infants with shorter disease duration: End of study results from the ENDEAR study in infants with spinal muscular atrophy (SMA). Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.421] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Acsadi G, Shieh P, Crawford T, Richardson R, Natarajan N, Castro D, Gheuens S, Gambino G, Sun P, Reyna S, Farwell W, Mueller-Felber W. Safety and efficacy of nusinersen in infants/children with spinal muscular atrophy (SMA): part 1 of the phase 2 EMBRACE study. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Tu H, Sun P, Gu H, Zhang X, Huang H, Wan T, Liu J. Clinical significance and prognostic value of femoral lymph node metastasis in FIGO stage III vulvar carcinoma. Eur J Surg Oncol 2017; 43:1768-1775. [DOI: 10.1016/j.ejso.2017.05.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 04/20/2017] [Accepted: 05/18/2017] [Indexed: 11/17/2022] Open
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Sun NH, Wang SH, Liu JN, Liu A, Gong WJ, Liu Y, Sun P, Li H. The productions of atrial natriuretic peptide and arginine vasopressin in small cell lung cancer with brain metastases and their associations with hyponatremia. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2017; 21:4104-4112. [PMID: 29028089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE Hyponatremia is one of the most frequently encountered electrolyte disorder in small cell lung cancer (SCLC) patients. It was shown that some SCLC cell lines could produce atrial natriuretic peptide (ANP) and arginine vasopressin (AVP). The aim of the study was to assess the secretion of ANP, AVP and their relative contributions to hyponatremia in SCLC patients, especially in patients with brain metastases. PATIENTS AND METHODS In total, 194 SCLC patients including 51 patients with brain metastases were collected. The levels of ANP and AVP were measured with radioimmunoassay kits. And then their associations with serum sodium were investigated. The progression-free survival (PFS) was compared between the hyponatremia group and the normal serum sodium group. RESULTS Serum sodium was negatively correlated with the plasma levels of ANP (r=-0.171, p=0.017) and AVP (r = -0.244, p=0.001) in all SCLC patients. In the brain metastatic subgroup, there was also a negative correlation between serum sodium and ANP (r=-0.399, p=0.004), while there was no correlation between serum sodium and AVP (r=-0.232, p=0.101). The occurrence rate of hyponatremia (serum sodium values below 135 mmol/l) in patients with brain metastases (21/51, 41.18%) was higher than that in patients without brain metastases (37/143, 25.87%) (p=0.040). The progression-free survival (PFS) in the hyponatremia group was significantly shorter than that in patients of the group without hyponatremia (p=0.010). Moreover, compared with patients which regained normal serum sodium after the treatment, the PFS of patients still with hyponatremia after the treatment was significantly shorter (p=0.049). CONCLUSIONS ANP might play a leading role in the formation of hyponatremia of SCLC patients with brain metastases. Correcting hyponatremia timely and appropriately could improve SCLC patients' prognosis.
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Konstantinopoulos P, Sachdev J, Schwartzberg L, Matulonis U, Sun P, Wang J, Guo W, Bobilev D, Aktan G, Karantza V, Dezube B, Vinayak S. Dose-finding combination study of niraparib and pembrolizumab in patients (pts) with metastatic triple-negative breast cancer (TNBC) or recurrent platinum-resistant epithelial ovarian cancer (OC) (TOPACIO/Keynote-162). Ann Oncol 2017. [DOI: 10.1093/annonc/mdx376.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Huang Y, Sun P, Zhang Z, Jin C. Numerical method based on transfer function for eliminating water vapor noise from terahertz spectra. APPLIED OPTICS 2017; 56:5698-5704. [PMID: 29047713 DOI: 10.1364/ao.56.005698] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 06/11/2017] [Indexed: 06/07/2023]
Abstract
Water vapor noise in the air affects the accuracy of optical parameters extracted from terahertz (THz) time-domain spectroscopy. In this paper, a numerical method was proposed to eliminate water vapor noise from the THz spectra. According to the Van Vleck-Weisskopf function and the linear absorption spectrum of water molecules in the HITRAN database, we simulated the water vapor absorption spectrum and real refractive index spectrum with a particular line width. The continuum effect of water vapor molecules was also considered. Theoretical transfer function of a different humidity was constructed through the theoretical calculation of the water vapor absorption coefficient and the real refractive index. The THz signal of the Lacidipine sample containing water vapor background noise in the continuous frequency domain of 0.5-1.8 THz was denoised by use of the method. The results show that the optical parameters extracted from the denoised signal are closer to the optical parameters in the dry nitrogen environment.
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Wang Y, Gao T, Liu Z, Xia Y, Liu P, Sun P, Bi X, Yang H, Jiang W, Li Z. GAD-M REGIMEN FOR NEWLY DIAGNOSED EXTRANODAL NK/T CELL LYMPHOMA: ANALYSIS OF EFFICACY AND SAFETY FROM PHASE II STUDY (NCT 01991158). Hematol Oncol 2017. [DOI: 10.1002/hon.2437_67] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Sun P, Williams M, Nagabhushana N, Morrison BJ. Combating Antibody-dependent Enhancement of Dengue Viral infection in Peripheral Blood Monocytes by NK Cell-mediated Antibody Dependent Cell Cytotoxicity. THE JOURNAL OF IMMUNOLOGY 2017. [DOI: 10.4049/jimmunol.198.supp.122.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Background
The dengue virus (DENV) group is composed of 4 serotypes, DENV-1, -2, -3 and -4. The 4 serotypes of DENV share70% sequence homology, therefore cross-reactivity among 4 serotypes is common. Cross-reactive antibodies (Ab) can cause Ab-dependent enhancement (ADE) of viral infection. ADE is thought to be an underlying mechanism of elevated immune-pathology associated with severe dengue diseases. Human monocytes and macrophages are target cells for ADE. This study investigates NK cell-mediated Ab-dependent cell cytotoxicity (ADCC) as a critical control mechanism following an established ADE intracellularly.
Methods
To model the physiological situation, whole human PBMCs were infected with DENV in the presence of autologous serially diluted sera. ADE in monocytes was detected by intracellular staining of viral antigens and by RT-PCR. NK cell activation was monitored in the same cultures by a degranulation marker CD107a. Other NK cell markers, cell proliferation and cytokine/chemokines were investigated.
Results
ADE was only detected in monocytes with the serially diluted immune sera. NK cell activation occurred concomitantly with the detection of ADE. The peak of the ADCC response was 48 hours post infection, but the response was still detectable at day 7. Minimal activation of T cells was observed. The power of ADE in monocytes ranged between 3 to 10.2 folds when NK cells were depleted as compared to 0.6 to 1.8 folds under normal condition. Activated NK cells had elevated expression of CD69, CD335, CD336, and CD96, but had downregulated CD337 and CD314.
Conclusion
ADCC is activated when DENV escapes from Ab neutralization and establishes infection in host cells, and it can act as the first line of defense to combat ADE.
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Fu M, Ye Q, Jiang C, Qian L, Xu D, Wang Y, Sun P, Ouyang J. The segment-dependent changes in lumbar intervertebral space height during flexion-extension motion. Bone Joint Res 2017; 6:245-252. [PMID: 28450317 PMCID: PMC5415903 DOI: 10.1302/2046-3758.64.bjr-2016-0245.r1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 02/07/2017] [Indexed: 11/09/2022] Open
Abstract
Objectives Many studies have investigated the kinematics of the lumbar spine and the morphological features of the lumbar discs. However, the segment-dependent immediate changes of the lumbar intervertebral space height during flexion-extension motion are still unclear. This study examined the changes of intervertebral space height during flexion-extension motion of lumbar specimens. Methods First, we validated the accuracy and repeatability of a custom-made mechanical loading equipment set-up. Eight lumbar specimens underwent CT scanning in flexion, neural, and extension positions by using the equipment set-up. The changes in the disc height and distance between adjacent two pedicle screw entry points (DASEP) of the posterior approach at different lumbar levels (L3/4, L4/5 and L5/S1) were examined on three-dimensional lumbar models, which were reconstructed from the CT images. Results All the vertebral motion segments (L3/4, L4/5 and L5/S1) had greater changes in disc height and DASEP from neutral to flexion than from neutral to extension. The change in anterior disc height gradually increased from upper to lower levels, from neutral to flexion. The changes in anterior and posterior disc heights were similar at the L4/5 level from neutral to extension, but the changes in anterior disc height were significantly greater than those in posterior disc height at the L3/4 and L5/S1 levels, from neutral to extension. Conclusions The lumbar motion segment showed level-specific changes in disc height and DASEP. The data may be helpful in understanding the physiologic dynamic characteristics of the lumbar spine and in optimising the parameters of lumbar surgical instruments. Cite this article: M. Fu, Q. Ye, C. Jiang, L. Qian, D. Xu, Y. Wang, P. Sun, J. Ouyang. The segment-dependent changes in lumbar intervertebral space height during flexion-extension motion. Bone Joint Res 2017;6:245–252. DOI: 10.1302/2046-3758.64.BJR-2016-0245.R1.
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Li WW, Sun P, Chen DD, Wang WQ, Jiao GH, Wang YJ, Zhou L, Wang BM, Zhang J. [Preventive and therapeutic effects of rapamycin against autoimmune hepatitis and liver fibrosis and possible mechanisms]. ZHONGHUA GAN ZANG BING ZA ZHI = ZHONGHUA GANZANGBING ZAZHI = CHINESE JOURNAL OF HEPATOLOGY 2017; 24:368-74. [PMID: 27470891 DOI: 10.3760/cma.j.issn.1007-3418.2016.05.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the preventive and therapeutic effects of rapamycin (RAPA) on autoimmune hepatitis and liver fibrosis induced by concanavalin A (ConA) and possible mechanisms. METHODS Female C57BL/6 mice aged 8 weeks were randomly divided into normal control group, ConA model group, and ConA+RAPA treatment group. The serum levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were measured; hematoxylin-eosin and Masson staining and Knodell HAI and Ishak scoring systems were used to evaluate the degrees of liver inflammation and fibrosis. Gradient centrifugation was used to separate mononuclear cells, flow cytometry was used to measure CD4(+)/CD8(+) ratio, and intracellular cytokine staining was performed to measure the levels of interferon-γ (IFN-γ), interleukin-4 (IL-4), interleukin-10 (IL-10), and transforming growth factor β (TGF-β) in immune cells. The t-test was used for data comparison between groups. RESULTS The RAPA treatment group showed a significant reduction in serum ALT level compared with the ConA model group (P < 0.05). Liver inflammatory injury was reduced significantly, and there was no obvious fibrous tissue proliferation. The level of TGF-β in mononuclear cells was reduced significantly, and the treatment group had a significantly lower level of TGF-β than the model group (8.91%±1.25% vs 16.65%±2.05%, P < 0.05). The proportions of CD4(+) and CD8(+)T cells in the liver were reduced, and the treatment group had significantly lower proportions of CD4(+) and CD8(+)T cells than the model group (proportion of CD4(+)T cells: 4.09%±1.20% vs 8.91%±0.69%, P < 0.05; proportion of CD8(+)T cells: 3.28%±0.66% vs 9.68%±1.46%, P < 0.05). The proportion of Th1 cells was reduced, and the treatment group had a significantly lower proportion of Th1 cells than the model group (1.02%±0.06% vs 2.83%±0.21%, P < 0.05); the proportions of Th3 and Tr1 regulatory T cells were increased, and the treatment group had significantly higher proportions of Th3 and Tr1 regulatory T cells than the model group (proportion of Th3 regulatory T cells: 59.53%±9.82% vs 47.13%±4.79%, P < 0.05; proportion of Tr1 regulatory T cells: 10.63%±2.27% vs 7.09%±1.66%, P < 0.05), but the proportion of Th2 cells showed no significant difference between the two groups (P > 0.05). CONCLUSION RAPA can promote the differentiation of Th3/Tr1 cells, reduce the expression of TGF-β in mononuclear cells, slow down the progression of chronic hepatitis induced by ConA into liver fibrosis, and thus prevent liver fibrosis.
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Jerzak K, Dudalski N, Pritchard K, Sun P, Narod SA. Does adjuvant radiation therapy benefit women with small mammography-detected breast cancers? Curr Oncol 2017; 24:28-32. [PMID: 28270722 DOI: 10.3747/co.24.3089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Women with small nonpalpable breast tumours have an excellent prognosis. The benefit of radiotherapy in this group of low-risk women is unknown. METHODS A cohort of 1595 women with stages i-iii invasive breast cancer treated with breast-conserving surgery were followed for local recurrence. Using t-tests, baseline demographic data and tumour characteristics were compared for the women who had palpable (n = 1023) and mammography-detected (n = 572) breast cancers. The 15-year actuarial risk of local recurrence was estimated using a Kaplan-Meier method, stratified for adjuvant radiation therapy (yes or no), tumour palpability (palpable or not), and tumour size (≤1 cm or >1 cm). Hazard ratios (hrs) and 95% confidence intervals (95% cis) were calculated using a multivariate Cox regression model. Results were considered statistically significant if 2-tailed p values were less than 0.05. RESULTS Among women with a nonpalpable tumour, the 15-year actuarial rates of local recurrence were, respectively, 13.9% and 18.3% for those treated and not treated with adjuvant radiation therapy (hr: 0.65; 95%ci: 0.40 to 1.06; p = 0.08). Among women with small nonpalpable breast cancers (≤1.0 cm), the rates were 14.6% and 13.4% respectively (p = 0.67). The absolute reduction in 15-year local recurrence was 11.0% for women with palpable tumours. CONCLUSIONS Our results suggest that women with small (<1 cm) screen-detected nonpalpable breast cancers likely derive little benefit from adjuvant radiotherapy; however, an adequately powered randomized trial would be required to make definitive conclusions.
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Kotsopoulos J, Oden L, Akbari M, Singer C, Sun P, Salmena L, Narod S. Abstract P5-09-01: Plasma osteoprotegerin and the risk of breast cancer in BRCA1 and BRCA2 mutation carriers. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p5-09-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
This abstract was withdrawn by the authors.
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Li M, Lu JB, Sun P, Luo RZ, He JH. [Fibromatosis-like metaplastic carcinoma of breast: a clinicopathological analysis of 3 cases]. ZHONGHUA BING LI XUE ZA ZHI = CHINESE JOURNAL OF PATHOLOGY 2017; 46:114-115. [PMID: 28173672 DOI: 10.3760/cma.j.issn.0529-5807.2017.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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