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Guoxin Y, Bing F, Ronghai Z, Jian Z, Xiaofeng S, Lei T, Qimin W, Jinhong H, Xufei L, Ying W, Yuan Z, Zongxuan H, Yixiang L, Ning L, Lei C, Zhenggang C. [Effects of RhoA silencing on proliferation of tongue squamous cancer cells]. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2017; 34:620-625. [PMID: 28318165 DOI: 10.7518/hxkq.2016.06.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVE This study investigated the effect of RhoA silencing through RNA interference on proliferation and growth of tongue cancer cells, as well as explored the possible mechanisms of this effect. METHODS SSC-4 tongue cancer cells were cultured in vitro and then transfected with small interfering RNA to knock down RhoA expression. The tested cells were divided into three groups: experimental group (experimental group 1: transfected with RhoA-siRNA-1; experi-mental group 2: transfected with RhoA-siRNA-2), negative control group (transfected by random sequence NC-siRNA), and blank control group (transfected with Lipofectamine). The expression levels of RhoA mRNA were respectively measured by quantitative real-time polymerase chain reaction and western blot assay. Moreover, the expression levels of cyclin D1, p21, and p27 and RhoA protein were evaluated by Western blot assay. Proliferation and growth potentiality were analyzed through evaluation of doubling times and methyl thiazolyl tetrazolium assessment. RESULTS The expression levels of RhoA gene and protein of experimental groups significantly decreased following siRNA transfection compared with those in the negative and blank control groups. The expression of cyclin D1 decreased significantly and that of p21 and p27 increased significantly. The doubling time was extended and the growth potentiality decreased. CONCLUSIONS The results indicated that RhoA silencing can inhibit proliferation of tongue cancer cells, whereas RhoA affects cell proliferation by regulating the cell cycle pathway. Thus, RhoA is a potential target in gene therapy for tongue cancer.
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Zahedi S, Icaran P, Yuan Z, Pijuan M. Effect of free nitrous acid pre-treatment on primary sludge at low exposure times. BIORESOURCE TECHNOLOGY 2017; 228:272-278. [PMID: 28081525 DOI: 10.1016/j.biortech.2016.12.117] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 12/28/2016] [Accepted: 12/31/2016] [Indexed: 05/28/2023]
Abstract
The present study was undertaken to investigate the effect of different free nitrous acid (FNA) concentrations at low pre-treatment times (PTs) (1, 2 and 5h) and without pH control with mild agitation on primary sludge (PS) biodegradability and methane production (MP). Increasing PTs resulted in an increase in the solubility of the organic matter (around 25%), but not on cell-mortality (>75% in all the cases with FNA) and neither on methane generation. FNA pre-treatment at low PTs improve MP (around 16% at PT of 1h and 650mg N-NO2-/L). However, a similar improvement was found with mild agitation of PS without FNA at 2 and 5h. Taking into account the potential costs associated with the FNA pre-treatment, a mild agitation without FNA would be preferred to enhance MP in PS.
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Zhang JX, Tan XH, Yuan Z, Li YH, Qi Y, Nan X, Qi MJ, Gao H, Lian FZ, Yang L. [Let-7 miRNA silencing promotes Kaposi's sarcoma-associated herpesvirus lytic replication via activating mitogen-activated protein kinase kinase kinase kinase 4 and its downstream factors]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 2017; 38:485-91. [PMID: 27531260 DOI: 10.3760/cma.j.issn.0253-3766.2016.07.002] [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 explore the effect of let-7 miRNA silencing on Kaposi's sarcoma-associated herpesvirus (KSHV) lytic replication and the underling mechanism. METHODS The pEGFP-C2-let-7 sponge vector was transfected into BCBL-1 and 293T cells with Lipofectamine 2000 to silence the expression of let-7 miRNAs. Quantitative real-time PCR (qRT-PCR) was used to quantify the expression of let-7 miRNAs, the transcriptional levels of mitogen-activated protein kinase kinase kinase kinase 4 (MAP4K4), cyclooxygenase-2 (COX-2) and matrix metalloproteinase 13 (MMP-13), and the DNA copy numbers of KSHV open reading frame 50 (ORF50) and open reading frame 72 (ORF72). Western blot was used to detect the total and phosphorylated protein levels of MAP4K4, COX-2, extracellular regulated protein kinases (ERK1/2), c-Jun N-terminal kinase (JNK) and p38 MAPK. RESULTS The expression of let-7 miRNAs was dramatically decreased in the let-7 sponge transfected BCBL-1 and 293T cells compared with that in the vector-transfected cells (P<0.05 for all). The gene copy number and mRNA transcriptional level of KSHV ORF50 were significantly increased in the let-7 sponge transfected BCBL-1 cells compared with that in the vector-transfected cells (1.00±0.10 vs. 2.33±0.18 and 1.08±0.48 vs 3.22±0.27, respectively,P<0.001 for both). The gene copy number and mRNA transcriptional level of KSHV ORF72 were also significantly increased in let-7 sponge transfected BCBL-1 cells compared with those in the vector-transfected cells(1.07±0.49 vs 1.67±0.45 and 1.01±0.19 vs 1.54±0.11, respectively,P<0.05 for both). Furthermore, the mRNA transcriptional levels of MAP4K4, COX-2 and MMP-13 were significantly increased in the let-7 sponge transfected BCBL-1 cells compared with those in the vector-transfected cells (1.00±0.05 vs 5.73±0.96, 1.00±0.05 vs 2.68±0.19, 1.00±0.02 vs 2.69±0.25, respectively,P<0.001 for all). Let-7 miRNAs silencing also increased the protein expression levels of MAP4K4, COX-2 and phospho-ERK1/2, while the phospho-JNK and phospho-p38 were not changed in the BCBL-1 and 293T cells. CONCLUSIONS Let-7 silencing may activate the replication of KSHV, possibly through up-regulating MAP4K4 and its downstream molecules COX-2, MMP-13, and phosphorylation of ERK1/2, finally results in the progression of Kaposi sarcoma.
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Mungall CJ, McMurry JA, Köhler S, Balhoff JP, Borromeo C, Brush M, Carbon S, Conlin T, Dunn N, Engelstad M, Foster E, Gourdine JP, Jacobsen JOB, Keith D, Laraway B, Lewis SE, NguyenXuan J, Shefchek K, Vasilevsky N, Yuan Z, Washington N, Hochheiser H, Groza T, Smedley D, Robinson PN, Haendel MA. The Monarch Initiative: an integrative data and analytic platform connecting phenotypes to genotypes across species. Nucleic Acids Res 2016; 45:D712-D722. [PMID: 27899636 PMCID: PMC5210586 DOI: 10.1093/nar/gkw1128] [Citation(s) in RCA: 189] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 10/26/2016] [Accepted: 11/02/2016] [Indexed: 02/04/2023] Open
Abstract
The correlation of phenotypic outcomes with genetic variation and environmental factors is a core pursuit in biology and biomedicine. Numerous challenges impede our progress: patient phenotypes may not match known diseases, candidate variants may be in genes that have not been characterized, model organisms may not recapitulate human or veterinary diseases, filling evolutionary gaps is difficult, and many resources must be queried to find potentially significant genotype–phenotype associations. Non-human organisms have proven instrumental in revealing biological mechanisms. Advanced informatics tools can identify phenotypically relevant disease models in research and diagnostic contexts. Large-scale integration of model organism and clinical research data can provide a breadth of knowledge not available from individual sources and can provide contextualization of data back to these sources. The Monarch Initiative (monarchinitiative.org) is a collaborative, open science effort that aims to semantically integrate genotype–phenotype data from many species and sources in order to support precision medicine, disease modeling, and mechanistic exploration. Our integrated knowledge graph, analytic tools, and web services enable diverse users to explore relationships between phenotypes and genotypes across species.
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Gao Y, Zhu Y, Yuan Z. Circulating Tumor Cells and Circulating Tumor DNA Provide New Insights into Pancreatic Cancer. Int J Med Sci 2016; 13:902-913. [PMID: 27994495 PMCID: PMC5165683 DOI: 10.7150/ijms.16734] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 09/13/2016] [Indexed: 12/13/2022] Open
Abstract
Pancreatic cancer has a rather dismal prognosis mainly due to high malignance of tumor biology. Up to now, the relevant researches on pancreatic cancer lag behind seriously partly due to the obstacles for tissue biopsy, which handicaps the understanding of molecular and genetic features of pancreatic cancer. In the last two decades, liquid biopsy, including circulating tumor cells (CTCs) and circulating tumor DNA (ctDNA), is promising to provide new insights into the biological and clinical characteristics of malignant tumors. Both CTCs and ctDNA provide an opportunity for studying tumor heterogeneity, drug resistance, and metastatic mechanism for pancreatic cancer. Furthermore, they can also play important roles in detecting early-stage tumors, providing prognostic information, monitoring tumor progression and guiding treatment regimens. In this review, we will introduce the latest findings on biological features and clinical applications of both CTCs and ctDNA in pancreatic cancer. In a word, CTCs and ctDNA are promising to promote precision medicine in pancreatic cancer.
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Yuan Z, Liu E, Liu Z, Kijas JW, Zhu C, Hu S, Ma X, Zhang L, Du L, Wang H, Wei C. Selection signature analysis reveals genes associated with tail type in Chinese indigenous sheep. Anim Genet 2016; 48:55-66. [PMID: 27807880 DOI: 10.1111/age.12477] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/09/2016] [Indexed: 01/19/2023]
Abstract
Fat-tailed sheep have commercial value because consumers prefer high-protein and low-fat food and producers care about feed conversion rate. However, fat-tailed sheep still have some scientific significance, as the fat tail is commonly regarded as a characteristic of environmental adaptability. Finding the candidate genes associated with fat tail formation is essential for breeding and conservation. To identify these candidate genes, we applied FST and hapFLK approaches in fat- and thin-tailed sheep with available 50K SNP genotype data. These two methods found 6.24 Mb of overlapped regions and 43 genes that may associated with fat tail development. Gene annotation showed that HOXA11, BMP2, PPP1CC, SP3, SP9, WDR92, PROKR1 and ETAA1 may play important roles in fat tail formation. These findings provide insight into tail fat development and a guide for molecular breeding and conservation.
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Qian D, Cheng J, Ding X, Yuan Z. Phosphoglycerate Mutase 5-Mediated Mitochondrial Apoptosis/Necrosis Pathways and Mitophagy Determine the Mode of Cell Death Induced by Ionizing Radiation in Non-Small-Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.2092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Zhang W, Pang Q, Yu S, Yuan Z, Wang P, Xiao Z. PD-L1 is Prognostic Factor of Human Esophageal Squamous Cell Carcinoma and Its Association With EGFR in Radiation Therapy. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ding X, Qian D, Cheng J, Yuan Z. In Vitro and In Vivo Radiosensitization by Telomerase Inhibitor BRBR1532 in Human Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Peacock W, Tamayo S, Sicignano N, Hopf K, Yuan Z, Patel M. 41 Major Bleeding in VTE Patients Treated With Rivaroxaban: An Analysis of Patients With Select Characteristics. Ann Emerg Med 2016. [DOI: 10.1016/j.annemergmed.2016.08.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Qiu M, Wu Z, Yuan Z, Meng M. MIR384, Inhibited By NF-Kb, Enhances Radiosensitivity in Human Non-Small Cell Lung Cancer Via Modulating DNA Damage Response and Repair Signaling. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Cao Y, Shen Y, Kim S, Li-ming X, Gong L, Wang Z, Ren K, Yuan Z, Zhao L. The miR-196b Regulates the Response of Ionizing Radiation by Modulating HR23B Levels in Gastrointestinal Cancer Cells. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.2099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Zahedi S, Icaran P, Yuan Z, Pijuan M. Assessment of free nitrous acid pre-treatment on a mixture of primary sludge and waste activated sludge: Effect of exposure time and concentration. BIORESOURCE TECHNOLOGY 2016; 216:870-5. [PMID: 27318660 DOI: 10.1016/j.biortech.2016.06.038] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 06/10/2016] [Accepted: 06/12/2016] [Indexed: 05/28/2023]
Abstract
Free nitrous acid (FNA) has been shown to enhance the biodegradability of waste activated sludge (WAS) but its effectiveness on the pre-treatment of mixed sludge is not known. This study explores the effectiveness of four different FNA concentrations (0, 2.49, 3.55, 4.62mgN-HNO2/L) and three exposure times (2, 5, 9h) lower than the ones reported in literature (24h) on WAS characteristics and specific methane production (SMP). FNA pre-treatment reduced sludge cell viability below 10% in all cases after an exposure time of 5h, increasing the solubility of the organic matter. The treated mixed sludge was used as substrate for the biochemical methane production tests to assess its SMP. Results showed a significant increase (up to 25%) on SMP when the sludge was pretreated with the lowest FNA concentration (2.49mgN-HNO2/L) during 2 and 5h but did not show any improvement at longer exposure times or higher FNA concentrations.
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Huang XY, Huang ZL, Yang JH, Xu YH, Sun JS, Zheng Q, Wei C, Song W, Yuan Z. Erratum to: Pancreatic cancer cell-derived IGFBP-3 contributes to muscle wasting. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2016; 35:77. [PMID: 27164939 PMCID: PMC4863314 DOI: 10.1186/s13046-016-0342-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Accepted: 04/07/2016] [Indexed: 11/10/2022]
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Zhang F, Wang J, Jiao Y, Zhang L, Zhang H, Sheng X, Han Y, Yuan Z, Weng Q. Seasonal changes of androgen receptor, estrogen receptors and aromatase expression in the medial preoptic area of the wild male ground squirrels (Citellus dauricus Brandt). Eur J Histochem 2016; 60:2621. [PMID: 27349316 PMCID: PMC4933827 DOI: 10.4081/ejh.2016.2621] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 04/10/2016] [Accepted: 04/11/2016] [Indexed: 11/25/2022] Open
Abstract
The wild ground squirrel is a typical seasonal breeder. In this study, using RT-PCR, western blot and immunohistochemistry, we investigated the mRNA and protein expressions of androgen receptor (AR), estrogen receptors a and β (ERα and ERβ) and aromatase cytochrome P450 (P450arom) in the medial preoptic area (MPOA) of hypothalamus of the wild male ground squirrel during the breeding season (April), the non-breeding season (June) and pre-hibernation (September). AR, ERα, ERβ and P450arom protein/mRNA were present in the MPOA of all seasons detected. The immunostaining of AR and ERα showed no significant changes in different periods, whereas ERβ and P450arom had higher immunoreactivities during the breeding season and pre-hibernation when compared to those of the non-breeding season. Consistently, both the protein and mRNA levels of P450arom and ERβ were higher in the MPOA of pre-hibernation and the breeding season than in the non-breeding season, whereas no significant difference amongst the three periods was observed for AR and ERα levels. These findings suggested that the MPOA of hypothalamus may be a direct target of androgen and estrogen. Androgen may play important regulatory roles through its receptor and/or the aromatized estrogen in the MPOA of hypothalamus of the wild male ground squirrels.
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Verawaty M, Yuan Z, Pijuan M, Bond PL. Corrigendum to "Determining the mechanisms for aerobic granulation from mixed seed of floccular and crushed granules in activated sludge wastewater treatment" [Water Res. 46 (2012) 761-771]. WATER RESEARCH 2016; 94:382. [PMID: 27040578 DOI: 10.1016/j.watres.2016.03.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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Nan X, Qin S, Yuan Z, Li Y, Zhang J, Li C, Tan X, Yan Y. Hsa-miRNA-31 regulates epithelial cell barrier function by inhibiting TNFSF15 expression. Cell Mol Biol (Noisy-le-grand) 2016; 62:104-110. [PMID: 27188743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 04/19/2016] [Indexed: 06/05/2023]
Abstract
Ulcerative colitis (UC) is characterized by epithelial barrier disruption and alterations in immune regulation but with the etiology unknown. MicroRNA-31 is the most consistent differentially expressed miRNA in ulcerative colitis tissue. The aim of this project is to study the important roles of miRNA-31 in regulation of intestinal epithelial barrier function. We found that expression of miRNA-31 is proportional to the proliferation of Caco2-BBE cells and overexpression of miRNA-31 can increase its trans-epithelial resistance (TER) by decreasing the transepithelial permeability. miRNA-31 can directly bind to the 3-UTR of TNFSF15, thereafter negatively regulating its expression in Caco2-BBE cells. BrdU and TUNEL analysis demonstrated that transfection of miRNA-31 stimulates proliferation or apoptosis-resistance. Taken together, these results revealed a novel mecha-nism underlying the regulation of epithelial barrier function by miRNA-31 during its regulation on proliferation of epithelial cells.
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Gao Y, Zhu Y, Zhang Z, Zhang C, Huang X, Yuan Z. Clinical significance of pancreatic circulating tumor cells using combined negative enrichment and immunostaining-fluorescence in situ hybridization. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2016; 35:66. [PMID: 27066900 PMCID: PMC4828870 DOI: 10.1186/s13046-016-0340-0] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 04/04/2016] [Indexed: 12/12/2022]
Abstract
BACKGROUND Circulating tumor cells (CTCs) hold great potential in both clinical application and basic research for the managements of cancer. However, it remains to be an enormous challenge to obtain efficient detection of pancreatic CTCs. New detection platforms for the detection of pancreatic CTCs are urgently required. METHODS In the present study, we applied a newly-developed platform integrated subtraction enrichment and immunostaining-fluorescence in situ hybridization (SE-iFISH) to analyze clinical significance of pancreatic CTCs. Immunostaining of CK, CD45, DAPI and FISH with the centromere of chromosome 8 (CEP8) were utilized to identify CTCs. Cells with features of CK+/CD45-/DAPI+/CEP8 = 2, CK+/CD45-/DAPI+/CEP8 > 2, CK-/CD45-/DAPI+/CEP8 > 2 were defined as pancreatic CTCs. The Kaplan-Meier method and Cox proportional hazards model were used to analyze the relationship of CTC level and other clinicopathological factors with pancreatic cancer clinical outcomes. RESULTS CTC count in pancreatic cancer was higher than healthy individuals (median, 3 vs. 0 per 7.5 ml; P < 0.001). SE-iFISH platform yielded a sensitivity of 88% and specificity of 90% in pancreatic cancer at the cutoff value of 2 cells/7.5 ml. Pancreatic cancer patients with lower CTC count (<3/7.5 ml) had substantially better overall survival (OS) compared with these with higher CTC count (≥3/7.5 ml) (15.2 vs. 10.2 months, P = 0.023). Multivariate analysis indicated that higher CTC count was a strong indicator for worse OS (HR = 4.547, P = 0.016). CONCLUSION Our current data showed that CTCs could be detected in pancreatic cancer patients in various stages, whether localized, locally advanced and metastatic. Besides, CTCs have shown the potential implication in predicting prognosis of pancreatic cancer.
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Yuan Z, He C, Yan S, Ke Y, Tang W. Randomized controlled clinical trial on the efficacy of fosfomycin trometamol for uncomplicated gonococcal urethritis in men. Clin Microbiol Infect 2016; 22:507-12. [PMID: 27064136 DOI: 10.1016/j.cmi.2016.03.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 03/29/2016] [Accepted: 03/31/2016] [Indexed: 02/05/2023]
Abstract
We assessed the efficacy of fosfomycin trometamol in treating uncomplicated gonococcal urethritis in men. We conducted an open randomized controlled trial in 152 consecutive men with any main complaints suggestive of uncomplicated gonococcal urethritis in Dujiangyan Medical Center between 1 September 2013 and 31 August 2015. In total, 126 patients completed all aspects of this study. Sixty were provided therapy with fosfomycin trometamol 3 g orally on days 1, 3 and 5 in the intervention group; the other 61 were provided ceftriaxone 250 mg intramuscularly plus azithromycin 1 g orally simultaneously as a single dose in the control group. The primary outcomes involved clinical and microbiologic cure on days 7 and 14 after receipt of all the study medications. At the day 7 follow-up visit, all the 121 participants had complete resolution of clinical symptoms and signs. In addition, five patients (two in the intervention group and three in the control group) discontinued intervention because of unsuccessful treatment. After receipt of all the study medications, these five patients still had urethral purulent discharge and were switched to other unknown treatment regimens by other doctors. The bacterial smears and cultures of urethral or urine specimens in the 121 patients who completed all aspects of the study were negative on a test-of-cure visit. In the per-protocol analysis, both clinical and microbiologic cure were experienced by 96.8% (60/62 patients) in the intervention group and 95.3% (61/64 patients) in the control group. There were no recurrences at the day 14 test-of-cure visit. This trial indicates that fosfomycin trometamol exhibits excellent efficacy for treatment of uncomplicated gonococcal urethritis in men. Serious adverse effects are rare.
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Guo ML, Wang W, Shen X, Chen J, Yuan Z, Yan F. Analysis on direct medical costs and compensation for whole course of treatment of pulmonary tuberculosis patients in Shanghai. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.02.844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Li Y, Zhou C, Zheng Y, Hong J, Yang M, Yuan Z, Hu Y, Xu B. The acceptability and feasibility of chemical prophylaxis for schoolchildren and adolescents with latent tuberculosis infection in Shanghai, China: A qualitative study. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.02.849] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Woolliams ER, Anhalt K, Ballico M, Bloembergen P, Bourson F, Briaudeau S, Campos J, Cox MG, del Campo D, Dong W, Dury MR, Gavrilov V, Grigoryeva I, Hernanz ML, Jahan F, Khlevnoy B, Khromchenko V, Lowe DH, Lu X, Machin G, Mantilla JM, Martin MJ, McEvoy HC, Rougié B, Sadli M, Salim SGR, Sasajima N, Taubert DR, Todd ADW, Van den Bossche R, van der Ham E, Wang T, Whittam A, Wilthan B, Woods DJ, Woodward JT, Yamada Y, Yamaguchi Y, Yoon HW, Yuan Z. Thermodynamic temperature assignment to the point of inflection of the melting curve of high-temperature fixed points. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2016; 374:20150044. [PMID: 26903099 DOI: 10.1098/rsta.2015.0044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/25/2015] [Indexed: 06/05/2023]
Abstract
The thermodynamic temperature of the point of inflection of the melting transition of Re-C, Pt-C and Co-C eutectics has been determined to be 2747.84 ± 0.35 K, 2011.43 ± 0.18 K and 1597.39 ± 0.13 K, respectively, and the thermodynamic temperature of the freezing transition of Cu has been determined to be 1357.80 ± 0.08 K, where the ± symbol represents 95% coverage. These results are the best consensus estimates obtained from measurements made using various spectroradiometric primary thermometry techniques by nine different national metrology institutes. The good agreement between the institutes suggests that spectroradiometric thermometry techniques are sufficiently mature (at least in those institutes) to allow the direct realization of thermodynamic temperature above 1234 K (rather than the use of a temperature scale) and that metal-carbon eutectics can be used as high-temperature fixed points for thermodynamic temperature dissemination. The results directly support the developing mise en pratique for the definition of the kelvin to include direct measurement of thermodynamic temperature.
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Huang XY, Huang ZL, Yang JH, Xu YH, Sun JS, Zheng Q, Wei C, Song W, Yuan Z. Pancreatic cancer cell-derived IGFBP-3 contributes to muscle wasting. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2016; 35:46. [PMID: 26975989 PMCID: PMC4791758 DOI: 10.1186/s13046-016-0317-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 02/29/2016] [Indexed: 01/27/2023]
Abstract
Background Progressive loss of skeletal muscle, termed muscle wasting, is a hallmark of cancer cachexia and contributes to weakness, reduced quality of life, as well as poor response to therapy. Previous studies have indicated that systemic host inflammatory response regarding tumor development results in muscle wasting. However, how tumor directly regulates muscle wasting via tumor-derived secreted proteins is still largely unknown. Methods In this study, we performed bioinformatics analysis in two datasets of pancreatic ductal adenocarcinoma, which causes cancer cachexia and muscle wasting with the highest prevalence, and uncovered that IGFBP3, which encodes IGF-binding protein-3 (IGFBP-3), is dramatically up-regulated in pancreatic tumor samples. We also verified the wasting effect of IGFBP-3 on C2C12 muscle cells with biochemical and genetic assays. Results IGFBP-3 potently leads to impaired myogenesis and enhanced muscle protein degradation, the major features of muscle wasting, via IGF signaling inhibition. Moreover, conditioned medium from Capan-1 pancreatic cancer cells, which contains abundant IGFBP-3, significantly induces muscle cell wasting. This wasting effect is potently alleviated by IGFBP3 knockdown in Capan-1 cells or IGFBP-3 antibody neutralization. Strikingly, compared to muscle cells, IGF signaling and proliferation rate of Capan-1 cells were rarely affected by IGFBP-3 treatment. Conclusions Our results demonstrated that pancreatic cancer cells induce muscle wasting via IGFBP-3 production. Electronic supplementary material The online version of this article (doi:10.1186/s13046-016-0317-z) contains supplementary material, which is available to authorized users.
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Yang J, Zhang X, Liu Z, Yuan Z, Song Y, Shao S, Zhou X, Yan H, Guan Q, Gao L, Zhang H, Zhao J. High-Cholesterol Diet Disrupts the Levels of Hormones Derived from Anterior Pituitary Basophilic Cells. J Neuroendocrinol 2016; 28:12369. [PMID: 27020952 DOI: 10.1111/jne.12369] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Revised: 01/13/2016] [Accepted: 01/21/2016] [Indexed: 11/30/2022]
Abstract
Emerging evidence shows that elevated cholesterol levels are detrimental to health. However, it is unclear whether there is an association between cholesterol and the pituitary. We investigated the effects of a high-cholesterol diet on pituitary hormones using in vivo animal studies and an epidemiological study. In the animal experiments, rats were fed a high-cholesterol or control diet for 28 weeks. In rats fed the high-cholesterol diet, serum levels of thyroid-stimulating hormone (TSH; also known as thyrotrophin), luteinising hormone (LH) and follicle-stimulating hormone (FSH) produced by the basophilic cells of the anterior pituitary were elevated in a time-dependent manner. Among these hormones, TSH was the first to undergo a significant change, whereas adrenocorticotrophic hormone (ACTH), another hormone produced by basophilic cells, was not changed significantly. As the duration of cholesterol feeding increased, cholesterol deposition increased gradually in the pituitary. Histologically, basophilic cells, and especially thyrotrophs and gonadotrophs, showed an obvious increase in cell area, as well as a potential increase in their proportion of total pituitary cells. Expression of the β-subunit of TSH, FSH and LH, which controls hormone specificity and activity, exhibited a corresponding increase. In the epidemiological study, we found a similar elevation of serum TSH, LH and FSH and a decrease in ACTH in patients with hypercholesterolaemia. Significant positive correlations existed between serum total cholesterol and TSH, FSH or LH, even after adjusting for confounding factors. Taken together, the results of the present study suggest that the high-cholesterol diet affected the levels of hormones derived from anterior pituitary basophilic cells. This phenomenon might contribute to the pituitary functional disturbances described in hypercholesterolaemia.
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Wang S, Zheng Q, Nie M, Xu F, Xia W, Yuan Z, Peng R, An X, Qin T, Qin G. Abstract P3-07-21: Non-alcoholic fatty liver disease induced by selective estrogen receptor modulators is a protective factor for breast cancer survival. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p3-07-21] [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
Purpose: Non-alcoholic fatty liver disease (NAFLD) induced by selective estrogen receptor modulators (SERMs) treatment may be related to treatment efficacy for the antagonism of circulating estrogens. We conducted a retrospective study to investigate the relationship between survival outcomes and NAFLD in breast cancer patients treated with tamoxifen or toremifene.
Patients and methods: 785 eligible patients received tamoxifen or toremifene in Sun Yat-sen university cancer center from January 2005 to December 2009 were included in our study. All patients have at less one abdominal ultrasonography measurement at baseline and every year's follow-up. Patients who diagnosed NAFLD by ultrasonography during three-year's follow-up were classified into NAFLD cohort, others were classified into no-NAFLD cohort. Univariate and multivariate Cox regression was utilized to analyse the relationship between NAFLD and disease-free survival (DFS) and overall survival (OS).
Results:158 patients had reported NAFLD in the first 3 years' follow-up. Patients who developed NAFLD had better DFS and OS than those not developing NAFLD. The 5-years DFS was 91.56% and 85.01% at NAFLD and no-NAFLD cohort (univariate hazard ratio [HR]: 0.59 [95%CI 0.37-0.96], P=0.034), respectively. The 5-years OS was 96.64% and 93.31% at NAFLD and no-NAFLD cohort (univariate HR: 0.39 [95%CI 0.16-0.99], P=0.047), respectively. Multivariate analysis revealed that NAFLD is an independent prognostic factor on DFS in breast cancer patients with SERMs treated. Women treated with SERMs experienced NAFLD in the first three-year's follow-up had a reduced risk of DFS of 42% (multivariate HR: 0.58; [95%CI 0.36-0.95], P=0.032) compared with patients without NAFLD.
Conclusion: NAFLD induced by SERMs seems to be associated with better survival outcomes and may therefore be helpful in predicting treatment responses in breast cancer patients treated with SERMs.
Citation Format: Wang S, Zheng Q, Nie M, Xu F, Xia W, Yuan Z, Peng R, An X, Qin T, Qin G. Non-alcoholic fatty liver disease induced by selective estrogen receptor modulators is a protective factor for breast cancer survival. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P3-07-21.
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