101
|
Rui Y, Han M, Zhou W, He Q, Li H, Li P, Zhang F, Shi Y, Su X. Non-malignant pathological results on transthoracic CT guided core-needle biopsy: when is benign really benign? Clin Radiol 2018; 73:757.e1-757.e7. [PMID: 29884525 DOI: 10.1016/j.crad.2018.03.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Accepted: 03/12/2018] [Indexed: 12/21/2022]
Abstract
AIM To determine true negatives and characterise the variables associated with false-negative results when interpreting non-malignant results of computed tomography (CT)-guided lung biopsy. MATERIALS AND METHODS Nine hundred and fifty patients with initial non-malignant findings on their first transthoracic CT-guided core-needle biopsy (TTNB) were included in the study. Initial biopsy results were compared to definitive diagnoses established later. RESULTS The negative predictive value (NPV) of non-malignant diseases upon initial TTNB was 83.6%. When the biopsy results indicated specific infection or benign tumour (n=225, 26.1%), they all were confirmed true negative for malignancy later. Only one inconclusive "granuloma" diagnosis was false negative. All 141 patients (141/861, 16.4%) who were false negative for malignancy were from the "infection not otherwise specified (NOS)", "inflammatory diseases", or "inconclusive" groups. Age (p=0.002), cancer history (p<0.001), target size (p=0.003), and pneumothorax during lung biopsy (p=0.003) were found to be significant predictors of false-negative results; 47.6% (410/861) of patients underwent additional invasive examinations to reach a final diagnosis. Ultimately, 52.7% (216/410) were successfully diagnosed. CONCLUSION Specific infection, benign tumour, and granulomatous inflammation of first TTNBs were mostly true negative. Older age, history of cancer, larger target size, and pneumothorax were highly predictive of false-negative results for malignancies. In such cases, additional invasive examinations were frequently necessary to obtain final diagnoses.
Collapse
|
102
|
Guo Y, Wang T, Zhao S, Han M, Dong Z, Wang X, Wang Y. Amphiphilic Hybrid Dendritic-Linear Molecules as Nanocarriers for Shape-Dependent Antitumor Drug Delivery. Mol Pharm 2018; 15:2665-2673. [DOI: 10.1021/acs.molpharmaceut.8b00190] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
103
|
Yang L, Xin EY, Liao B, Lai LJ, Han M, Wang XP, Ju WQ, Wang DP, Guo ZY, He XS. Development and Validation of a Nomogram for Predicting Incidence of Early Allograft Dysfunction Following Liver Transplantation. Transplant Proc 2018; 49:1357-1363. [PMID: 28736007 DOI: 10.1016/j.transproceed.2017.03.083] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 03/15/2017] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Early allograft dysfunction (EAD) is frequent complication post-liver transplantation and is closely related to recipient's mortality and morbidity. We sought to develop a nomogram for predicting incidence of EAD. METHODS Based on multivariate analysis of donor, recipient, and operation data of 199 liver transplants from deceased donors between 2013 and 2015, we identified 5 significant risk factors for EAD to build a nomogram. The model was subjected to prospective validation with a cohort of 42 patients who was recruited between January and June 2016. The predictive accuracy and discriminative ability were measured by area under the receiver operating characteristic curve (AUC). The agreement between nomogram prediction and actual observation was showed by the calibration curve. RESULTS Incidence rate of EAD in the training set and validation cohort were 55.91% (104/199) and 54.76% (23/42), respectively. In the training set, according to the results of univariable and multivariable analysis, 5 independent risk factors including donor gender, donor serum gamma-glutamyl transpeptidase level, donor serum urea level, donor comorbidities (respiratory, cardiac, and renal dysfunction), and recipient Model for End-stage Liver Disease score were identified and assembled into the nomogram. The AUC of internal validation using bootstrap resampling and prospective validation using the external cohort of 42 patients was 0.74 and 0.60, respectively. The calibration curves for probability of EAD showed acceptable agreement between nomogram prediction and actual observation. According to the score table, the probability of EAD was under 30% when the total point tally was under 72. But when the total was up to 139, the risk of EAD increased to 60%. CONCLUSION We've established and validated a nomogram that can provide individual prediction of EAD for liver transplant recipients. The practical prognostic model may help clinicians to qualify the liver graft accurately, making a more reasonable allocation of organs.
Collapse
|
104
|
Guo Y, Zhao S, Qiu H, Wang T, Zhao Y, Han M, Dong Z, Wang X. Shape of Nanoparticles as a Design Parameter to Improve Docetaxel Antitumor Efficacy. Bioconjug Chem 2018; 29:1302-1311. [DOI: 10.1021/acs.bioconjchem.8b00059] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
|
105
|
Liu T, Han M, Tian F, Cun D, Rantanen J, Yang M. Budesonide nanocrystal-loaded hyaluronic acid microparticles for inhalation: In vitro and in vivo evaluation. Carbohydr Polym 2018; 181:1143-1152. [DOI: 10.1016/j.carbpol.2017.11.018] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 11/03/2017] [Accepted: 11/03/2017] [Indexed: 11/28/2022]
|
106
|
Han M, Qi X, Bi D, Li Y, Guo Y, Wang X, Feng L. Administration of raloxifene hydrochloride nanosuspensions partially attenuates bone loss in ovariectomized mice. RSC Adv 2018; 8:23748-23756. [PMID: 35540259 PMCID: PMC9081861 DOI: 10.1039/c8ra02535e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 06/19/2018] [Indexed: 11/28/2022] Open
Abstract
Postmenopausal osteoporosis is a systemic skeletal disease of fragility fractures due to the loss of the mass and the deterioration of the microarchitecture of bone. This study aimed to assess the effects of raloxifene hydrochloride nanosuspensions (RLX-NSps) on ovariectomized (OVX)-induced osteoporotic rats, and the underlying mechanisms were also investigated in vivo and ex vivo. RLX-NSps were successfully prepared, and the obtained RLX-NSps had a mean particle size of (91.17 ± 0.73) nm, PDI value of 0.201 ± 0.03 and zeta potential of (36.3 ± 1.8) mV. RLX-NSps showed a clear colloidal solution with light yellow opalescence. RLX-NSps were stable in artificial intestinal fluid, artificial gastric fluid, PBS, isotonic glucose and physiological saline. The OVX mice were administered an RLX-NSps or RLX solution for 3 weeks. The bone micro-tomographic histomorphometry and bone mineral density (BMD) were assessed by micro-CT, and the biochemical markers procollagen type I N-terminal propeptide (P1NP) and beta-isomerized C-telopeptide (β-CTX) were determined from serum. Finally, primary bone marrow stromal cells (BMSCs) were isolated from the tibia and cultured to evaluate cell proliferation and osteogenic differentiation. The results demonstrated that the RLX-NSp group had a better effect on the bone microarchitecture than the RLX solution group. Therefore, RLX-NSps could partially attenuate bone loss more effectively than RLX solution in OVX mice by inhibiting bone resorption and improving the ability of BMSCs to proliferate and their osteogenic differentiation to some extent. Based on these results, nanosuspensions (NSps) may be a promising delivery system for postmenopausal osteoporosis therapy. RLX-NSps could partially attenuate bone loss more effectively than RLX solution in OVX mice by inhibiting bone resorption and improving the ability of BMSCs to proliferate and their osteogenic differentiation to some extent.![]()
Collapse
|
107
|
Li Y, Hong J, Li H, Qi X, Guo Y, Han M, Wang X. Genkwanin nanosuspensions: a novel and potential antitumor drug in breast carcinoma therapy. Drug Deliv 2017; 24:1491-1500. [PMID: 28961040 PMCID: PMC8241161 DOI: 10.1080/10717544.2017.1384519] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Recently, genkwanin (GKA) has been shown to display in vitro antitumor activity against some cancer cells, but its poor solubility restricted the in vivo study and further investigation of its antitumor therapeutic efficacy. In this paper, genkwanin nanosuspensions (GKA-NSps) were successfully prepared using D-alpha tocopherol acid polyethylene glycol succinate (TPGS) as a stabilizer using the precipitation-homogenization method. The obtained GKA-NSps had an average particle size of 183.1 ± 4.4 nm, a PDI value of 0.16 ± 0.07, a zeta potential of −16.2 ± 0.1 mV, and a drug loading content of 49.36 ± 0.14%. GKA-NSps showed spherical morphology and very good stability in normal saline, phosphate buffer saline (PBS, pH 7.4), 5% glucose, artificial gastric juice, artificial intestinal juice and plasma; thus, it is suitable for both oral and intravenous administration. The resultant GKA-NSps displayed sustained drug release behavior and stronger in vitro cytotoxicity against 4T1, MCF-7, MDA-MB-453, HeLa, HepG2, BT474, and A549 cells than free GKA. The in vivo study in MCF-7 tumor-bearing nude mice indicated that GKA-NSps (60 mg/kg, i.v.) achieved similar therapeutic efficacy as PTX injection (8 mg/kg, i.v.) (62.09% vs. 61.27%), while the minimal lethal dose was more than 320 mg/kg, indicating good safety. By using nanotechnology, our study suggested that some antitumor flavonoids of low potency, such as GKA, are promising as safe but effective anticancer drugs.
Collapse
|
108
|
Liu J, Jiang Y, Han M, Li N, Li W. [Clinical diagnosis and treatment for button battery in esophagus in children]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2017; 31:1521-1523. [PMID: 29798108 DOI: 10.13201/j.issn.1001-1781.2017.19.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Indexed: 06/08/2023]
|
109
|
Han M. Laser-Assisted Indocyanine Green Imaging for Perioperative Maxillary Perfusion Assessment in LeFort I Osteotomies – a Preliminary Study. J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.joms.2017.07.045] [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]
|
110
|
Ha EJ, Baek SM, Baek JH, Shin SY, Han M, Kim CH. Efficacy and Safety of Ethanol Ablation for Branchial Cleft Cysts. AJNR Am J Neuroradiol 2017; 38:2351-2356. [PMID: 28970243 DOI: 10.3174/ajnr.a5373] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Accepted: 07/10/2017] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Branchial cleft cyst is a common congenital lesion of the neck. This study evaluated the efficacy and safety of ethanol ablation as an alternative treatment to surgery for branchial cleft cyst. MATERIALS AND METHODS Between September 2006 and October 2016, ethanol ablation was performed in 22 patients who refused an operation for a second branchial cleft cyst. After the exclusion of 2 patients who were lost to follow-up, the data of 20 patients were retrospectively evaluated. All index masses were confirmed as benign before treatment. Sonography-guided aspiration of the cystic fluid was followed by injection of absolute ethanol (99%) into the lesion. The injected volume of ethanol was 50%-80% of the volume of fluid aspirated. Therapeutic outcome, including the volume reduction ratio, therapeutic success rate (volume reduction ratio of >50% and/or no palpable mass), and complications, was evaluated. RESULTS The mean index volume of the cysts was 26.4 ± 15.7 mL (range, 3.8-49.9 mL). After ablation, the mean volume of the cysts decreased to 1.2 ± 1.1 mL (range, 0.0-3.5 mL). The mean volume reduction ratio at last follow-up was 93.9% ± 7.9% (range, 75.5%-100.0%; P < .001). Therapeutic success was achieved in all nodules (20/20, 100%), and the symptomatic (P < .001) and cosmetic (P < .001) scores had improved significantly by the last follow-up. In 1 patient, intracystic hemorrhage developed during the aspiration; however, no major complications occurred in any patient. CONCLUSIONS Ethanol ablation is an effective and safe treatment for patients with branchial cleft cysts who refuse, or are ineligible for, an operation.
Collapse
|
111
|
Li Y, Han M, Liu T, Cun D, Fang L, Yang M. Inhaled hyaluronic acid microparticles extended pulmonary retention and suppressed systemic exposure of a short-acting bronchodilator. Carbohydr Polym 2017; 172:197-204. [DOI: 10.1016/j.carbpol.2017.05.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 04/06/2017] [Accepted: 05/04/2017] [Indexed: 10/19/2022]
|
112
|
Markowski M, Chen Y, Feng Z, Trock B, Cullen J, Suzman D, Antonarakis E, Paller C, Han M, Partin A, Eisenberger M. PSA doubling time (PSADT) and proximal PSA predict metastasis-free survival (MFS) in men with biochemically recurrent prostate cancer (BRPC) after radical prostatectomy (RP): Implications for patient counseling and clinical trial design. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx370.035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
113
|
Cho Y, Han M, Park S, Park J. Bisphenol a induces inflammation and proliferation in human endometrial cells. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.944] [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]
|
114
|
He LB, Wang YL, Xie X, Han M, Song FQ, Wang BJ, Cheng WL, Xu HX, Sun LT. Correction: Systematic investigation of the SERS efficiency and SERS hotspots in gas-phase deposited Ag nanoparticle assemblies. Phys Chem Chem Phys 2017; 19:17469. [PMID: 28653071 DOI: 10.1039/c7cp90136d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Correction for 'Systematic investigation of the SERS efficiency and SERS hotspots in gas-phase deposited Ag nanoparticle assemblies' by L. B. He et al., Phys. Chem. Chem. Phys., 2017, 19, 5091-5101.
Collapse
|
115
|
Yang L, Hong J, Di J, Guo Y, Han M, Liu M, Wang X. 10-Hydroxycamptothecin (HCPT) nanosuspensions stabilized by mPEG 1000-HCPT conjugate: high stabilizing efficiency and improved antitumor efficacy. Int J Nanomedicine 2017; 12:3681-3695. [PMID: 28553107 PMCID: PMC5439984 DOI: 10.2147/ijn.s134005] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
In this study, polyethylene glycol (PEG)ylated 10-hydroxycamptothecin (mPEG1000-HCPT) was synthesized and used as a stabilizer to prepare 10-hydroxycamptothecin (HCPT) nanosuspensions for their in vitro and in vivo antitumor investigation. The resultant HCPT nanosuspensions (HCPT-NSps) had a very high drug payload of 94.90% (w/w) and a mean particle size of 92.90±0.20 nm with narrow size distribution (polydispersity index of 0.16±0.01). HCPT-NSps could be lyophilized without the need of the addition of any cryoprotectant and then be reconstituted into nanosuspensions of a similar size by direct resuspension in water. HCPT was in crystalline form in HCPT-NSps. Using mPEG1000-HCPT as stabilizer, insoluble camptothecin and 7-ethyl-10-hydroxycamptothecin could also be easily made into nanosuspensions with similar features such as high drug payload, small particle size, and cryoprotectant-free freeze drying. The 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide assay indicated that the HCPT-NSps had a significantly higher cytotoxicity than HCPT injections, with 3.77 times lower IC50 value against HepG2 cells and 14.1 times lower IC50 value against MCF-7 cells. An in vivo study in H22 tumor-bearing mice after intravenous injection of HCPT-NSps demonstrated that HCPT-NSps significantly improved the antitumor efficacy compared to the commercially available HCPT injections (86.38% vs 34.97%) at the same dose of 5 mg/kg. Even at 1/4 of the dose, HCPT-NSps could also achieve a similar antitumor efficacy to that of HCPT injections. mPEG1000-HCPT may be a highly efficient stabilizer able to provide camptothecin-based drugs, and probably other antitumor agents containing aromatic structure, with unique nanosuspensions or nanocrystals for improved in vivo therapeutic efficacy.
Collapse
|
116
|
Yuan X, Chen C, Zhou J, Han M, Wang X, Wang C, He X. Organ Donation and Transplantation From Donors With Systemic Infection: A Single-Center Experience. Transplant Proc 2017; 48:2454-2457. [PMID: 27742320 DOI: 10.1016/j.transproceed.2016.02.092] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 02/02/2016] [Indexed: 10/20/2022]
Abstract
OBJECTIVES Donors with bacteremia and sepsis are often considered to be controversial for organ retrieval due to potential transmission of an infectious agent to the recipient. Herein we report our initial experience of organ donation and transplantation results from donors with systemic infection. MATERIALS AND METHODS From January 2013 to December 2014, 125 cases of donation were completed in our organ procurement organization including 90 cases of donation after brain death (DBD) and 35 cases of donation after circulatory death (DCD). The results of bacterial culture of the donor's peripheral venous blood (PVB), blood from central venous catheter (BCVC), urine, bronchial aspiration, and tip of central venous catheter (TCVC; Maki's semiquantitative culture) were retrospectively reviewed. All liver transplant recipients received specific antibiotics according the susceptibility profiles of the PVB cultures, and all kidney transplant recipients received specific antibiotics according the susceptibility profiles of the PVB and urine cultures. Bacterial infection diseases transmission from donors of the liver and kidney transplant recipients were also retrospectively reviewed. RESULTS The positive rates of the bacterial culture of the donor's bronchial aspiration, PVB, BCVC, TCVC, and urine were 46.4% (39/84), 20.2% (24/119), 15.8% (12/76), 11.1% (3/27), and 7.0% (8/115), respectively. Only 28.1% (9/32) of donors with positive cultures of PVB or urine received specific antimicrobial therapy before harvesting. Twenty-two livers and 46 kidneys from donors with systemic infection (positive PVB culture) were transplanted, and no case of bacterial infection diseases transmission occurred in the recipients. CONCLUSIONS In the circumstance of donor systemic infection with positive bacterial culture of PVB, the liver and kidney can be transplanted safely with prophylactic antibiotics. Donors with systemic infection are not a contraindication for organ donation.
Collapse
|
117
|
Si FZ, Feng YQ, Han M. Association between interleukin-17 gene polymorphisms and the risk of laryngeal cancer in a Chinese population. GENETICS AND MOLECULAR RESEARCH 2017; 16:gmr-16-01-gmr.16019076. [PMID: 28362993 DOI: 10.4238/gmr16019076] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
IL-17 is associated with the occurrence and development of laryngeal cancer. However, no study has reported the association between IL-17 polymorphisms and laryngeal cancer susceptibility. Therefore, we analyzed the association of three polymorphism loci (rs2275913, 197 G/A; rs3748067, 383 A/G; and rs763780, 7488 T/C) of IL-17A and IL-17F with laryngeal cancer in the Chinese population. A case-control study was performed with 325 patients and 325 controls. Polymorphisms were detected by polymerase chain reaction and sequencing methods. SPSS17.0 software was used for statistical analysis. Allele and genotype frequencies of IL-17A rs2275913 were significantly different between patients and controls (P < 0.05). Frequencies of rs2275913 (197 G/A) AA and GA+AA genotypes compared to the GG genotype were significantly higher in patients than in controls, indicating the association of these genes with laryngeal cancer susceptibility; adjusted OR values were 2.54 (1.50-4.23) and 1.62 (1.19-2.17), respectively. Furthermore, individuals with the GA+AA genotype, compared to the GG genotype, aged ≤60 years, with smoking and alcohol consumption habits, and without a family history of cancer showed a higher cancer risk (OR = 2.74, 95%CI = 1.41-5.23; OR = 2.11, 95%CI = 1.21-3.55; OR = 1.91, 95%CI = 1.02-3.70; OR = 1.99, 95%CI = 1.08-3.39, respectively). In conclusion, the rs2275913 IL-17A (197 G/A) is associated with the incidence and development of laryngeal cancer in the Chinese population, and the AA and GA+AA genotypes harbor a high laryngeal cancer risk.
Collapse
|
118
|
Choi JW, Lee D, Hyun SH, Han M, Kim JH, Lee SJ. Intratumoural heterogeneity measured using FDG PET and MRI is associated with tumour-stroma ratio and clinical outcome in head and neck squamous cell carcinoma. Clin Radiol 2017; 72:482-489. [PMID: 28285707 DOI: 10.1016/j.crad.2017.01.019] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 01/02/2017] [Accepted: 01/31/2017] [Indexed: 11/28/2022]
Abstract
AIM To evaluate the association between the tumour-stroma ratio and intratumoural heterogeneity measured using 2-[18F]-fluoro-2-deoxy-d-glucose (FDG) positron-emission tomography (PET) and magnetic resonance imaging (MRI), and further investigate the prognostic significance of imaging biomarkers in head and neck squamous cell carcinoma (HNSCC). MATERIALS AND METHODS Textural-based imaging parameters of the primary tumour were extracted in 44 patients. In addition, the difference between the minimum and maximum apparent diffusion coefficient (ADC) values (ADCdiff) was calculated on MRI. The relationships between the tumour-stroma ratio and imaging parameters were evaluated. The associations between imaging parameters and recurrence-free survival (RFS) were assessed using Cox proportional hazard regression models. RESULTS Coarseness (r=-0.382) on PET and ADCdiff (r=0.534) on MRI were significantly correlated with the proportion of stroma. The best imaging biomarkers for the 2-year RFS prediction were coarseness (AUC=0.741) and ADCdiff (AUC=0.779). Multivariate analysis showed that coarseness (hazard ratio=10.549, 95% confidence interval=2.544-43.748, p=0.001) was an independent prognostic factor for RFS. CONCLUSION Heterogeneity imaging parameters are significantly associated with the tumour-stroma ratio. These imaging biomarkers may help to facilitate the risk stratification for tumour recurrence in HNSCC.
Collapse
|
119
|
He LB, Wang YL, Xie X, Han M, Song FQ, Wang BJ, Chen WL, Xu HX, Sun LT. Systematic investigation of the SERS efficiency and SERS hotspots in gas-phase deposited Ag nanoparticle assemblies. Phys Chem Chem Phys 2017; 19:5091-5101. [DOI: 10.1039/c6cp08513j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Revealing the SERS hotspots and SERS efficiencies of Ag nanoparticle assemblies based on the design of multifarious rainbow-like nanoparticle bands.
Collapse
|
120
|
Guo Y, Zhao Y, Wang T, Zhao S, Qiu H, Han M, Wang X. Honokiol nanoparticles stabilized by oligoethylene glycols codendrimer: in vitro and in vivo investigations. J Mater Chem B 2017; 5:697-706. [DOI: 10.1039/c6tb02416e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Based on fluorescently labeled codendrimer PGC, honokiol nanoparticles were prepared, which possessed higher drug-loading content and enhanced antitumor efficacy in vitro and in vivo.
Collapse
|
121
|
Guo Y, Hao C, Wang X, Zhao Y, Han M, Wang M, Wang X. Well-defined podophyllotoxin polyprodrug brushes: preparation via RAFT polymerization and evaluation as drug carriers. Polym Chem 2017. [DOI: 10.1039/c6py01883a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Novel poly(triethylene glycol methacrylate)-b-poly(podophyllotoxin methacrylate) copolymers (PTP) with a well-defined structure were designed and synthesized by direct RAFT polymerization with the hydrophobic monomer derivative from the anticancer drug podophyllotoxin.
Collapse
|
122
|
Guo Y, Zhao Y, Wang T, Li R, Han M, Dong Z, Zhu C, Wang X. Hydroxycamptothecin Nanorods Prepared by Fluorescently Labeled Oligoethylene Glycols (OEG) Codendrimer: Antitumor Efficacy in Vitro and in Vivo. Bioconjug Chem 2016; 28:390-399. [DOI: 10.1021/acs.bioconjchem.6b00536] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
123
|
Han M, Vlaeminck SE, Al-Omari A, Wett B, Bott C, Murthy S, De Clippeleir H. Uncoupling the solids retention times of flocs and granules in mainstream deammonification: A screen as effective out-selection tool for nitrite oxidizing bacteria. BIORESOURCE TECHNOLOGY 2016; 221:195-204. [PMID: 27639672 DOI: 10.1016/j.biortech.2016.08.115] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 08/29/2016] [Accepted: 08/30/2016] [Indexed: 05/06/2023]
Abstract
This study focused on a physical separator in the form of a screen to out-select nitrite oxidizing bacteria (NOB) for mainstream sewage treatment. This separation relied on the principle that the NOB prefer to grow in flocs, while anammox bacteria (AnAOB) reside in granules. Two types of screens (vacuum and vibrating) were tested for separating these fractions. The vibrating screen was preferred due to more moderate normal forces and additional tangential forces, better balancing retention efficiency of AnAOB granules (41% of the AnAOB activity) and washout of NOB (92% activity washout). This operation resulted in increased NOB out-selection (AerAOB/NOB ratio of 2.3) and a total nitrogen removal efficiency of 70% at influent COD/N ratio of 1.4. An effluent total nitrogen concentration <10mgN/L was achieved using this novel approach combining biological selection with physical separation, opening up the path towards energy positive sewage treatment.
Collapse
|
124
|
Reinke ML, Han M, Liu G, van Eden GG, Evenblij R, Haverdings M, Stratton BC. Development of plasma bolometers using fiber-optic temperature sensors. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2016; 87:11E708. [PMID: 27910644 DOI: 10.1063/1.4960421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Measurements of radiated power in magnetically confined plasmas are important for exhaust studies in present experiments and expected to be a critical diagnostic for future fusion reactors. Resistive bolometer sensors have long been utilized in tokamaks and helical devices but suffer from electromagnetic interference (EMI). Results are shown from initial testing of a new bolometer concept based on fiber-optic temperature sensor technology. A small, 80 μm diameter, 200 μm long silicon pillar attached to the end of a single mode fiber-optic cable acts as a Fabry-Pérot cavity when broadband light, λo ∼ 1550 nm, is transmitted along the fiber. Changes in temperature alter the optical path length of the cavity primarily through the thermo-optic effect, resulting in a shift of fringes reflected from the pillar detected using an I-MON 512 OEM spectrometer. While initially designed for use in liquids, this sensor has ideal properties for use as a plasma bolometer: a time constant, in air, of ∼150 ms, strong absorption in the spectral range of plasma emission, immunity to local EMI, and the ability to measure changes in temperature remotely. Its compact design offers unique opportunities for integration into the vacuum environment in places unsuitable for a resistive bolometer. Using a variable focus 5 mW, 405 nm, modulating laser, the signal to noise ratio versus power density of various bolometer technologies are directly compared, estimating the noise equivalent power density (NEPD). Present tests show the fiber-optic bolometer to have NEPD of 5-10 W/m2 when compared to those of the resistive bolometer which can achieve <0.5 W/m2 in the laboratory, but this can degrade to 1-2 W/m2 or worse when installed on a tokamak. Concepts are discussed to improve the signal to noise ratio of this new fiber-optic bolometer by reducing the pillar height and adding thin metallic coatings, along with improving the spectral resolution of the interrogator.
Collapse
|
125
|
Zhang XF, Guo ZQ, Zhao CC, Xu CY, Han M, Li C, Wang Z. The role of ZNRF2 in the growth of non-small cell lung cancer. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2016; 20:4011-4017. [PMID: 27775798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE ZNRF2 belongs to ubiquitin ligases of the RING superfamily, and has been recently shown to be regulated by Akt to interact with a Mechanistic target of rapamycin (mTor). Nevertheless, a role of ZNRF2 in tumorigenesis, especially in non-small cell lung cancer (NSCLC), is unknown. Here, we assessed ZNRF2 expression in NSCLC. PATIENTS AND METHODS We examined ZNRF2 levels by Western blot using NSCLC specimens, compared to the paired non-tumor controls. We also examined the effects of ZNRF2 on cell growth and cell survival in the presence of fluorouracil. RESULTS We detected significant higher levels of ZNRF2 and mTor in NSCLC tissues, compared to the paired non-tumor controls. Moreover, ZNRF2 and mTor levels strongly correlated in NSCLC tissues. High ZNRF2 levels were correlated with poor prognosis of the NSCLC patients. In vitro, overexpression of ZNRF2 increased NSCLC cell growth and suppressed apoptotic cell death in the presence of Fluorouracil, while depletion of ZNRF2 decreased NSCLC cell growth and increased apoptotic cell death in the presence of fluorouracil. ZNRF2 appeared to augment mTor and its downstream targets CyclinD1 and CDK in NSCLC cells. CONCLUSIONS ZNRF2 may be a promising target for treating NSCLC.
Collapse
|