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Xie J, Qiu L, Tao Y, Zhu T. Perioperative myocardial injury after noncardiac surgery: An easily ignored and challenging problem. Int J Cardiol 2019; 292:42. [PMID: 31349943 DOI: 10.1016/j.ijcard.2019.04.059] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 04/18/2019] [Indexed: 10/26/2022]
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Liu R, Zhao X, Guo W, Huang M, Qiu L, Zhang W, Zhang Z, Li W, Zhu X, Chen Z. Dynamic monitoring of HER2 amplification in circulating DNA of patients with metastatic colorectal cancer treated with cetuximab. Clin Transl Oncol 2019; 22:928-934. [PMID: 31571151 DOI: 10.1007/s12094-019-02215-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 09/13/2019] [Indexed: 12/27/2022]
Abstract
PURPOSE Cetuximab (CTX) has been used to treat metastatic colorectal cancer (mCRC) with wild-type (wt) RAS and BRAF genes. Meanwhile HER2 amplification reportedly denoted CTX-resistant mCRC tumors. We investigated whether monitoring of HER2 amplification in circulating DNA allowed early detection of mCRC progression and CTX resistance. METHODS mCRC, who progressed after CTX treatments between July 2015 and January 2018. RESULTS Of the 36 patients, 5 (13.9%) exhibited dynamic fluctuations of HER2 amplification in plasma in the course of CTX treatment, of whom 2 were positive for HER2 amplification in matched tumor specimens at baseline (per FISH). All 5 primary sites were left side: 3 rectums and 2 descending colon. HER2 ratio fluctuations in circulating DNA not only reflected changes in tumor volume, but their obvious increases presaged CT-documented progress by an average lead time of 2 months. Interestingly, progression-free survival did not significantly differ between these 5 patients and those without HER2 amplification (HR 1.06, 95% CI 0.40-2.77, P = 0.909). CONCLUSION Plasma HER2 amplification detected by ddPCR changed over time and predicted resistance to CTX, by an average lead time of 2 months. Further study is needed to validate our findings.
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Tsementzi D, Buchwald Z, Qiu L, Khan M, Konstantinidis K, Bruner D, Lin J. Impact of Glucocorticoids on the Gut Microbiome with or without Anti-PD-L1. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Lin ZZ, Ran H, Chen P, Deng J, Huang ZD, Ou CY, Qiu L, Feng HY, Liao SJ, Liu WB. [Characteristics of electromyography in 111 patients with generalized myasthenia gravis: a retrospective study]. ZHONGHUA YI XUE ZA ZHI 2019; 99:2522-2526. [PMID: 31484280 DOI: 10.3760/cma.j.issn.0376-2491.2019.32.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To retrospectively analyze the characteristics of the electromyography (EMG) study in generalized myasthenia gravis (gMG) patients. Methods: A total of 111 gMG patients were enrolled. Patients were divided into two groups: 36 severe patients discontinuing pyridostigmine bromide (PB) for 8 hours were included in 8 h group, and 75 g MG patients discontinuing PB for at least 18 hours were included in>18 h group. The clinical information and EMG study data were collected and analyzed. Results: There were statistically significant differences in the initial location of the myasthenia muscle (P=0.027), the affected muscle detected by the EMG (P=0.015) and quantitative myasthenia gravis (QMG) score (P<0.01) between the two groups. Comparisons in each group revealed that the highest positive rate of low-frequency repetitive nerve stimulation (RNS) of facial in 8 h group and>18 h group was 94.4% and 60.0%, respectively. Comparisons between the two groups showed that the positive rate of low-frequency RNS in 8 h group was significantly higher than that in>18 h group (94.4% vs 70.7%, χ(2)=8.115, P=0.004). In particular, the positive rate of RNS in facial nerves and the extent of the amplitude decrease under different electrical stimulations (1 Hz, 3 Hz, and 5 Hz) were dramatically higher in the 8 h group (P<0.01). Conclusions: For gMG patients, the facial and accessory nerve detection can improve the positive rate of RNS. Different muscles had various sensitivity to PB, and orbicularis oculi muscle seemed the least sensitive muscle to PB. For suspect MG patients in severe condition, only discontinuing PB medication for 8 h before low-frequency RNS testing can avoid the deterioration and also obtain similar positive rate.
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Lei JQ, Qiu L, Ding XH, Fu YX, Yuan XG, Liu Y. [Expression of gamma-aminobutyric acid type A receptor beta3 subunit in murine cleft palate induced by 2, 3, 7, 8-tetrachlorodibenzo-p-dioxin]. ZHONGHUA KOU QIANG YI XUE ZA ZHI = ZHONGHUA KOUQIANG YIXUE ZAZHI = CHINESE JOURNAL OF STOMATOLOGY 2019; 54:328-334. [PMID: 31091566 DOI: 10.3760/cma.j.issn.1002-0098.2019.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the expression of gamma-aminobutyric acid type A receptor beta3 subunit (GABRB3) on cleft palate in C57BL/6J mice induced by 2,3,7,8-tetrachlorodibenzo- p-dioxin (TCDD). Methods: Sixty C57BL/6J pregnant mice on gestation day (GD) 10.5 were divided into two groups: one group was administered through gastric tubes one dose of 28 μg/kg TCDD (experimental group) and the other group was administered through gastric tubes one dose of 5.6 ml/kg corn oil (control group). Embryos were removed by cesarean section from pregnant mice during the palatal formation stage (GD 13.5-17.5) and the palatal tissue studied in morphological and histological observation. The relative mRNA and protein expression of GABRB3 was measured by real-time quantitative PCR and Western blotting. Localization of GABRB3 protein was measured by immunohistochemistry or immunofluorescence. Results: The incidence of cleft palate at GD17.5 was 100% in experimental group and there was no cleft palate occurred in the control group (0); elevation of palatine processes in experimental group was completed on GD15.5 which was clearly delayed by a day compared with that in control group. On GD14.5-GD17.5, the mRNA expression (0.561±0.073, 0.728±0.104, 0.782±0.137, 0.686±0.145) and protein expression (0.288±0.013, 0.404±0.017, 0.399±0.012, 0.307±0.010) in the experimental group were significantly lower than the control group mRNA expression (0.818±0.088, 0.865±0.086, 1.021±0.054, 1.163±0.179) and protein expression (0.481±0.017, 0.456±0.009, 0.474±0.016, 0.529±0.015)(P<0.05). Immunohistochemistry and immunofluorescence showed that GABRB3 was mainly expressed in the mesenchymal cells and medial edge epithelium. Conclusions: TCDD delayed palatal shelf elevation and eventually led to cleft palate may be associated with a decrease in GABRB3. GABRB3 may play an important role in the elevation and fusion phases of the palate development.
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Qiu L, Sun Y, Jiang Z, Yang P, Liu H, Zhou H, Wang X, Zhang W, Lin Y, Ma W. The midgut V-ATPase subunit A gene is associated with toxicity to crystal 2Aa and crystal 1Ca-expressing transgenic rice in Chilo suppressalis. INSECT MOLECULAR BIOLOGY 2019; 28:520-527. [PMID: 30719783 DOI: 10.1111/imb.12570] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Insecticidal crystal (Cry) proteins produced by the bacterium Bacillus thuringiensis (Bt) are toxic to a diverse range of insects. Transgenic rice expressing Cry1A, Cry2A and Cry1C toxins have been developed that are lethal to Chilo suppressalis, a devastating insect pest of rice in China. Identifying the mechanisms underlying the interactions of Cry toxins with susceptible hosts will improve both our understanding of Cry protein toxicology and long-term efficacy of Bt crops. In this study, we tested the hypothesis that V-ATPase subunit A contributes to the action of Cry1Ab/1Ac, Cry2Aa and Cry1Ca toxins in C. suppressalis. The full-length V-ATPase subunit A transcript was initially cloned from the C. suppressalis larval midgut and then used to generate double-stranded RNA (dsRNA)-producing bacteria. Toxicity assays using transgenic rice lines TT51 (Cry1Ab and Cry1Ac fusion genes), T2A-1 (Cry2Aa), and T1C-19 (Cry1Ca) in conjunction with V-ATPase subunit A dsRNA-treated C. suppressalis larvae revealed significantly reduced larval susceptibility to T2A-1 and T1C-19 transgenic rice, but not to TT51 rice. These results suggest that the V-ATPase subunit A plays a crucial role in mediating Cry2Aa and Cry1Ca toxicity in C. suppressalis. These findings will have significant implications on the development of future resistance management tools.
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Wang X, Zhou Q, Zhou S, Qian Z, Li L, Qiu L, Ren X, Liu X, Zhang H. SEQUENTIAL CHEMOTHERAPY/RADIOTHERAPY WAS SUPERIOR TO SANDWICH THERAPY FOR PRIMARY EARLY-STAGE DLBCL OF WALDEYER'S RING. Hematol Oncol 2019. [DOI: 10.1002/hon.132_2631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Tam C, Opat S, Zhu J, Cull G, Gottlieb D, Li J, Marlton P, Qiu L, Roberts A, Seymour J, Simpson D, Song Y, Yang H, Du C, Feng S, Ji M, Lin L, Novotny W, Wang A, Trotman J. PS1159 POOLED ANALYSIS OF SAFETY DATA FROM MONOTHERAPY STUDIES OF THE BRUTON TYROSINE KINASE (BTK) INHIBITOR, ZANUBRUTINIB (BGB-3111), IN B-CELL MALIGNANCIES. Hemasphere 2019. [DOI: 10.1097/01.hs9.0000562920.26603.5b] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Li P, Qiu L, Su W, Han J, Zhang J, Li D. Gamma heavy chain disease associated with T large granular lymphocytic leukemia. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.422] [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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Xie J, Qiu L, Tao Y, Zhu T. Cardiac magnetic resonance contributes to better diagnosis and management of type I Kounis syndrome. Int J Cardiol 2019; 284:110. [DOI: 10.1016/j.ijcard.2018.10.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 10/03/2018] [Indexed: 10/27/2022]
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Zhu HJ, Li YS, Wang YP, Hu XH, Zhang XR, Qiu L, He WF, Luo GX. [Effects of skin γδ T lymphocytes on wound healing of mice through regulating proliferation and differentiation of mice epidermal cells]. ZHONGHUA SHAO SHANG ZA ZHI = ZHONGHUA SHAOSHANG ZAZHI = CHINESE JOURNAL OF BURNS 2019; 35:298-307. [PMID: 31060178 DOI: 10.3760/cma.j.issn.1009-2587.2019.04.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore effects of dendritic epidermal T cells (DETCs) and Vγ4 T lymphocytes on proliferation and differentiation of mice epidermal cells and the effects in wound healing of mice. Methods: (1) Six C57BL/6 male mice aged 8 weeks were collected and divided into control group and wound group according to random number table (the same grouping method below), with 3 mice in each group. A 4 cm long straight excision with full-thickness skin defect was cut on back of each mouse in wound group, while mice in control group received no treatment. On post injury day (PID) 3, mice in 2 groups were sacrificed, and skin within 5 mm from the wound margin on back of mice in wound group and normal skin on corresponding part of mice in control group were collected to make single cell suspensions. The percentage of Vγ4 T lymphocyte expressing interleukin-17A (IL-17A) and percentage of DETCs expressing insulin-like growth factor Ⅰ (IGF-Ⅰ) were detected by flow cytometer. (2) Ten C57BL/6 male mice aged 8 weeks were collected and divided into control group and Vγ4 T lymphocyte depletion group with 5 mice in each group. Mice in Vγ4 T lymphocyte depletion group were injected with 200 g Vγ4 T lymphocyte monoclonal neutralizing antibody of Armenian hamster anti-mouse intraperitoneally, and mice in control group were injected with the same amount of Armenian hamster Ig intraperitoneally. One hole with full-thickness skin defect was made on each side of spine of back of each mice. The wound healing was observed on PID 1-8, and percentage of remaining wound area was calculated. (3) Six C57BL/6 male mice aged 8 weeks were grouped and treated in the same way as in experiment (2), with 3 mice in each group. On PID 3, expressions of IL-17A and IGF-Ⅰ in epidermis on margin of wound were detected with Western blotting. (4) Thirty C57BL/6 male mice aged 3 days were sacrificed, and epidermal cells were extracted. The keratin 14 positive cell rate was examined by flow cytometer (the same detecting method below). (5) Another batch of mouse epidermal cells were collected and divided into control group, IGF-Ⅰ group, and IL-17A group, with 3 wells in each group (the same well number below). Cells in IGF-Ⅰ group and IL-17A group were added with 1 mL recombinant mouse IGF-Ⅰ and IL-17A with final mass concentration of 100 ng/mL respectively, while cells in control group were added with the same amount of sterile phosphate buffered saline (PBS). On post culture day (PCD) 5, keratin 14 negative cell rate was examined. Another batch of mouse epidermal cells were collected, grouped, and treated in the same way as aforementioned experiment, and keratin 10 positive cell rate was examined on PCD 10. (6) Another batch of mouse epidermal cells were collected and added with 4 mmol/L 5(6)-carboxyfluorescein diacetate N-succinimidyl ester (CFSE) solution, and divided into control 0 d group, control 7 d group, IGF-Ⅰ group, and IL-17A group. Cells in IGF-Ⅰ group and IL-17A group were treated in the same way as the corresponding groups in experiment (5), and cells in control 0 d group and control 7 d group were treated in the same way as the control group in experiment (5). The CFSE fluorescence peaks were examined on PCD 0 of control 0 d group and PCD 7 of the other 3 groups. (7) Another batch of mouse epidermal cells were collected and divided into control group and IGF-Ⅰ group. Cells in IGF-Ⅰ group were added with 1 mL recombinant mouse IGF-Ⅰ with final mass concentration of 100 ng/mL, and cells in control group were added with the same amount of sterile PBS. On PCD 5, cells were underwent keratin 14 staining and CFSE staining as aforementioned, and keratin 14 negative cell rate of CFSE positive cells was examined. Another batch of mouse epidermal cells were collected and divided into control group and IL-17A group. Cells in IL-17A group were added with 1 mL recombinant mouse IL-17A with final mass concentration of 100 ng/mL, and cells in control group were added with the same amount of sterile PBS. On PCD 5, keratin 14 negative cell rate of CFSE positive cells was examined. Data were processed with one-way analysis of variance and t test. Results: (1) On PID 3, percentage of DETC expressing IGF-Ⅰ in normal epidermis of control group was (9.9±0.8)%, significantly lower than (19.0±0.6)% of epidermis around margin of wound group (t=8.70, P<0.01); percentage of Vγ4 T lymphocyte expressing IL-17A in normal epidermis of control group was (0.123±0.024)%, significantly lower than (8.967±0.406)% of epidermis around margin of wound group (t=21.77, P<0.01). (2) On PID 1-4, there was obvious inflammatory reaction around wounds of mice in control group, and on PID 5-8, the wound area was still large. On PID 1-4, there was slight inflammatory reaction around wounds of mice in Vγ4 T lymphocyte depletion group, and on PID 5-8, the wound area was significantly reduced. On PID 3-7, percentages of residual wound area in Vγ4 T lymphocyte depletion group were significantly lower than those in control group (t=5.92, 5.74, 7.17, 5.38, 5.57, P<0.01), while percentages of residual wound area in two groups on PID 1, 2, 6 were similar (t=1.46, 3.17, 3.10, P>0.05). (3) On PID 3, compared with those in control group, expression of IL-17A and IGF-Ⅰ in epidermis around wound margin of mice in Vγ4 T lymphocyte depletion group was markedly decreased and increased respectively (t=8.47, 19.24, P<0.01). (4) The keratin 14 positive cell rate of mouse epidermal cells was 94.7%. (5) On PCD 5, the keratin 14 negative cell rate of mice in control group was markedly higher than that of IGF-Ⅰ group, while significantly lower than that of IL-17A group (t=7.25, 5.64, P<0.01). On PCD 10, the keratin 10 positive cell rate of mice in control group was significantly higher than that of IGF-Ⅰ group, while significantly lower than that of IL-17A group (t=3.99, 10.82, P<0.05 or P<0.01). (6) Compared with that of control 0 d group, CFSE fluorescence peaks of mouse epidermal cells in control 7 d group, IGF-Ⅰ group, and IL-17A group on PCD 7 shifted to the left. Compared with that of control 7 d group, CFSE fluorescence peaks of mouse epidermal cells in IGF-Ⅰ group and IL-17A group on PCD 7 shifted to the left. (7) On PCD 5, keratin 14 negative cell rate of CFSE positive cells of mice in control group was significantly higher than that in IGF-Ⅰ group (t=9.91, P<0.01), and keratin 14 negative cell rate of CFSE positive cells of mice in control group was markedly lower than that in IL-17A group (t=6.49, P<0.01). Conclusions: In the process of wound healing, IGF-Ⅰ secreted by DETC can promote the proliferation of mouse keratin 14 positive epidermal cells and inhibit their terminal differentiation, while IL-17A secreted by Vγ4 T lymphocyte can promote the proliferation and terminal differentiation of mouse keratin 14 positive epidermal cells, thus both IGF-Ⅰ and IL-17A can affect wound healing.
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Mei A, Qiu L. The efficacy of tranexamic acid for orthognathic surgery: a meta-analysis of randomized controlled trials. Int J Oral Maxillofac Surg 2019; 48:1323-1328. [PMID: 30902548 DOI: 10.1016/j.ijom.2018.07.027] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 06/08/2018] [Accepted: 07/23/2018] [Indexed: 11/17/2022]
Abstract
The efficacy of tranexamic acid in orthognathic surgery remains controversial. We conducted a systematic review and meta-analysis to explore the influence of tranexamic acid on blood loss for orthognathic surgery. We performed a search of PubMed, Embase, Web of science, EBSCO, and Cochrane library databases through October 2017 for randomized controlled trials (RCTs) assessing the effects of tranexamic acid versus placebo on orthognathic surgery. Meta-analysis was performed using the random-effects model. Six RCTs were included in the meta-analysis. Overall, compared with placebo in orthognathic surgery, tranexamic acid administration results in significantly decreased blood loss [mean difference (MD)=-159.73; 95% confidence interval (CI)=-236.42 to -83.03; P<0.0001], and higher postoperative haemoglobin (MD=0.71; 95% CI=0.11 to 1.31; P=0.02), but has no remarkable impact on postoperative haematocrit (MD=1.23; 95% CI=-1.22 to 3.69; P=0.33) and operation time (MD=-2.35; 95% CI=-18.05 to 13.36; P=0.77). In addition, patients with orthognathic surgery need decreased amounts of irrigant fluid (MD=-229.23; 95% CI=-399.63 to -58.83; P=0.008) after using tranexamic acid. We concluded that tranexamic acid promotes the bleeding control in orthognathic surgery.
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Gao XH, Cui QX, Zhang QX, Cheng XQ, Lu J, Qiu L, Han B. [The investigation of the positive rate of intrinsic factor antibody and deficiency rate of vitamin B(12) in normal physical examination population]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2019; 39:917-920. [PMID: 30486588 PMCID: PMC7342354 DOI: 10.3760/cma.j.issn.0253-2727.2018.11.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the positive rate of intrinsic factor antibody (IFAb) and level of vitamin B(12) (VitB(12)) in normal physical examination population and the possible relation between IFAb, VitB12 and sex, age, number of RBC, HGB and MCV. Methods: A total of 1 427 people who came to Peking Union Medical Colleague Hospital (PUMCH) for physical examination were enrolled. There were 758 males with average age of (52.5±14.5) years-old and 669 females with average age of (50.3±14.3) year-old. Beckman DxI800 automatic biochemical-immune analyzer and corollary reagents were used to analyze the level of serum IFAb and VitB(12). The results in different sex, age were documented and their correlation with the value of whole blood cell count was tested later on. Results: Among the 1 427 normal subjects, 66 (4.63%) were positive for IFAb. The positive rate for IFAb in the population≥40 years-old was higher than those<40 years-old (5.66% vs 1.48%, χ(2)=7.46, P=0.006). The deficiency rate of VitB(12) in the population<40 years-old, 40-59 years-old and ≥60 years-old was 2.22%, 2.51% and 5.50%, respectively (χ(2)=8.55, P=0.014). There were no difference between people with different sex in the positive rate of IFAb (5.15% for males and 4.04% for females, χ(2)=0.99, P=0.320) or in the deficiency rate of VitB(1)2 (3.83% for males and 2.69% for females, χ(2)=1.44, P=0.230). The results of multiple linear regression showed that HGB level of IFAb positive subjects was 3.05 g/L lower on average than those of IFAb negative, but IFAb had no effect on both RBC and MCV. There was no correlation between VitB(1)2 deficiency and HGB, RBC and MCV. Conclusion: The positive rate of IFAb and deficiency rate of VitB(1)2 increase as age increases. But the presence of VitB(12) deficiency is later than the positive findings of IFAb. IFAb showed some effects on the level of HGB, which may compensate the limitations of VitB(12) detection to some extent. It is necessary to check the IFAb and level of VitB(12) in people with middle or old ages.
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Wu Y, Sun Y, Qiu L, Wang H, Zhang Y, Chen K, Li H, Gu H, Zhang J, Gao XH. A multicentre, randomized, split face and/or neck comparison of 308-nm excimer laser and 0·1% tacrolimus ointment for stable vitiligo plus intramuscular slow-releasing betamethasone for active vitiligo. Br J Dermatol 2019; 181:210-211. [PMID: 30644997 DOI: 10.1111/bjd.17630] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Luo J, Wang X, Ma F, Kang G, Ding Z, Ye C, Pan Y, Zhao Y, Hong S, Chen J, Xi J, Wen S, Lin Y, Li X, Qiu L, Yang X, Li G, Yang J, Sun Q. Long-term immunogenicity and immune persistence of live attenuated and inactivated hepatitis a vaccines: a report on additional observations from a phase IV study. Clin Microbiol Infect 2018; 25:1422-1427. [PMID: 30496870 DOI: 10.1016/j.cmi.2018.11.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 10/24/2018] [Accepted: 11/03/2018] [Indexed: 12/20/2022]
Abstract
Both live attenuated (HA-L) and inactivated (HA-I) hepatitis A vaccine were licensed for routine use in China. Although phase 1, 2 and 3 clinical studies of both vaccines have been completed, further systematic evaluation of their immunogenicity and immunological persistence under phase 4 clinical studies in a wide range of conditions and involving large populations is necessary. A phase IV clinical trial (NCT02601040) was performed in 9000 participants over 18 months of age. Geometric mean concentrations (GMCs) and seroconversion rates (SRs) were compared at five time points during 3 years for 1800 individuals among them. The SRs of HA-L and HA-I were 98.08% (95% CI 95.59%-99.38%) and 99.64% (95% CI 98.93%-100.00%) respectively 28 days after administration of the first dose, and remained at 97.07% (95% CI 94.31%-98.73%) or above and 96.73% (95% CI 94.07%-98.42%) or above respectively during the following 3 years. The GMCs for both the HA-L and HA-I groups showed that both vaccines elicited high anti-HAV titres, considerably more than the threshold of protection needed against HAV infection in humans, and these titres were sustained. Hence, both HA-I and HA-L vaccines could provide an excellent long-term protective effect, and supported the routine use of both vaccines.
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Zhang X, Qiu L, Zhu S. Birth defect epidemiology since ending one-child policy in Zhejiang province, China, from 2012-2017. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky214.194] [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] Open
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Zhang X, Qiu L, Zhu S. Changes in maternal characteristics and pregnancy outcomes with fertility policy adjustment in China. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky212.729] [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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Qiu L, Joshi N, Woody N, Koyfman S, Godley A. Calculation of Head and Neck Treatment Doses on Cone-Beam CT. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Guo B, Qiu L, Donaghue J, Hsu S, Xia P. Evaluating the Accuracy of Commercial Deformable Image Registration Software for Real Patient Images Using Anthropomorphic Modeling. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Qiu L. MiR-449a suppresses endometrial cancer invasion and metastasis by targeting NDRG1. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy268.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Qiu L, Ouyang Y, Feng Y, Zhang X. Note: Thermal conductivity measurement of individual porous polyimide fibers using a modified wire-shape 3 ω method. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:096112. [PMID: 30278753 DOI: 10.1063/1.5052692] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 09/10/2018] [Indexed: 06/08/2023]
Abstract
Porous polyimide fiber enjoys a good reputation as a high temperature resistant thermal insulation material in an aircraft-carrier, a spacecraft, and other military sophisticated products. Understanding its thermal conductivity is especially important for the design optimization and thermal management in these applications. In this study, a modified wire-shape 3ω method is developed to measure the thermal conductivity of individual porous polyimide fibers, utilizing a platinum layer heater/thermometer deposited along the circumferential direction of the fiber. The new method is first validated using a platinum wire with known thermophysical properties such as thermal conductivity at room temperature and then applied to porous polyimide fibers with diverse porosities. The thermal conductivity of porous polyimide fibers at room temperature is 0.06-0.15 W m-1 K-1, which reflects a good thermal insulation performance.
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Li L, Qiu L, Wu M. [A survey of willingness about genetic counseling and tests in patients of epithelial ovarian cancer]. ZHONGHUA YI XUE ZA ZHI 2018; 97:3412-3415. [PMID: 29179283 DOI: 10.3760/cma.j.issn.0376-2491.2017.43.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze patients' tendency towards genetics counseling and tests based on a prospective cohort study on hereditary ovarian cancer. Methods: From February 2017 to June 2017, among 220 cases of epithelial ovarian cancer in Peking Union Medical College Hospital, we collected epidemiological, pathological and tendency towards genetics counseling and tests via medical records and questionnaire.All patients would get education about hereditary ovarian cancer by pamphlets and WeChat.If they would receive further counseling, a face to face interview and tests will be given. Results: Among all 220 patients, 10 (4.5%) denied further counseling.For 210 patients receiving genetic counseling, 170 (81%) accepted genetic tests.In multivariate analysis, risk factors relevant to acceptance of genetic tests included: being charged by physicians of gynecologic oncology for diagnosis and treatment, receiving counseling in genetic counseling clinics, and having family history of breast cancer.For patients denying genetic tests, there were many subjective reasons, among which, "still not understanding genetic tests" (25%) and "unable bear following expensive targeting medicine" . Conclusions: High proportion patients of epithelial ovarian cancer would accept genetic counseling and tests.Genetic counseling clinics for gynecologic oncology would further improve genetic tests for patients.
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Qiu L, Wang DC, Xu T, Cheng XQ, Sun Q, Hu YY, Liu HC, Lu SY, Yang GH, Wang ZJ. [Influence of gender, age and season on thyroid hormone reference interval]. ZHONGHUA YI XUE ZA ZHI 2018; 98:1582-1587. [PMID: 29886649 DOI: 10.3760/cma.j.issn.0376-2491.2018.20.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: Using clinical "big data" , to investigate the factors that affect the levels of thyroid hormones, and to explore the partitioning criteria for reference intervals (RI) of these hormones. Methods: An observation study was conducted. Information of 107 107 individuals undergoing routine physical examination in Peking Union Medical College Hospital from September 1(st,) 2013 to August 31(st,) 2016 was collected, thyroid hormone of these subjects were detected. To explore the test results distribution and differences of TSH, FT4 and FT3 by gender and age; according to the seasonal division standard of China Meteorological Administration, the study period was divided into four seasons, and the seasonal fluctuation on TSH was analyzed.To define the appropriate partition by gender, age and season according to significant difference analysis. Results: In male and female, the distributions of TSH were 1.779(0.578-4.758), 2.023(0.420-5.343)mU/L, respectively, and the level of TSH in female was higher than in male (Z=-37.600, P<0.001). The distributions of FT4 were 0.127(0.098-0.162), 0.117(0.091-0.151) μg/L, the distributions of FT3 were 3.33(2.47-3.74), 3.01(2.35-3.57)ng/L. And the level of FT4, FT3 in female were significantly lower than in male (Z=-94.000, -154.600, all P<0.001). Furthermore, males were divided into two groups by 65 years old and female were divided by 50 years old, respectively, and the distributions of TSH in male and female of older group were 1.818(0.528-5.240), 2.111(0.348-5.735)mU/L, in younger group were 1.778(0.582-4.696), 1.991(0.427-5.316)mU/L. The level of TSH in older group was significantly higher than in younger group (Z=-2.269, -10.400, all P<0.05), and the distribution of TSH in older group was much wider than in younger. The distribution of whole in spring, summer and autumn was 1.869( 0.510-5.042)mU/L, in winter was 1.978(0.527-5.250) mU/L, and the difference between them had statistical significance (Z=-15.000, P<0.001). Conclusions: Gender and age significantly affect the serum levels of TSH, FT4, and FT3, the distribution of TSH in female and elder group are wider than in male, and that of FT4, FT3 are lower.Seasons significantly affect the serum TSH level, the peak value is observed in winter. There are obviously differences between "rough" RIs and manufacture recommended RIs. Each laboratory should establish reference intervals for thyroid hormones on the premise of appropriate grouping.
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Qiu L, Dong JC, Ding F. Selective growth of two-dimensional phosphorene on catalyst surface. NANOSCALE 2018; 10:2255-2259. [PMID: 29350230 DOI: 10.1039/c7nr08507a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Although the study of black phosphorene (BP) and its isomers has attracted enormous attention, the method of synthesizing high-quality samples in a large area is still pending. Here we explore the potential of using the chemical vapor deposition method to synthesize large-area two-dimensional (2D) phosphorene films on metal surfaces. Our ab initio calculations show that BP can be synthesized by using tin (Sn) as a catalyst, while one of its isomers, blue phosphorene (BLP), is very possible to be synthesized by using most other metals, such as Ag and Au. Besides, our study also suggests that the large binding energy between the 2D phosphorene and the active metal substrate may prohibit the exfoliation of the 2D phosphorene for real applications and, therefore, tin, silver and gold are predicted to be the most suitable catalysts for the synthesis of BP and BLP.
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Qiu L, Wang P, Wu T, Li B, Wang X, Lei C, Lin Y, Zhao J, Ma W. Downregulation of Chilo suppressalis alkaline phosphatase genes associated with resistance to three transgenic Bacillus thuringiensis rice lines. INSECT MOLECULAR BIOLOGY 2018; 27:83-89. [PMID: 28940938 DOI: 10.1111/imb.12349] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Insecticidal crystal (Cry) proteins produced by the bacterium Bacillus thuringiensis are highly toxic to lepidopteran pests. Strains of transgenic rice expressing cry genes have been developed that are resistant to rice pests. Understanding the mode of action of Cry toxins in rice pests will improve our ability to use them effectively as insecticides. In this study, we tested the hypothesis that alkaline phosphatases (ALPs) are involved in Cry1A, Cry2Aa and Cry1Ca toxicity in Chilo suppressalis, an important insect pest of rice crops in China. We first cloned three novel C. suppressalis alps (Csalps) from the larval midgut of C. suppressalis. RNA interference knockdown of six different Csalp genes (Csalp1, Csalp2, Csalp3, Csalp4, Csalp5 and Csalp6) showed that knockdown of three of these, Csalp1, Csalp2 and Csalp4, reduced larval mortality to the transgenic rice strain TT51, which expresses a fusion protein of Cry1Ab and Cry1Ac, whereas suppression of Csalp1, Csalp2, Csalp3, Csalp4 and Csalp6 transcripts decreased the susceptibility of larvae to the transgenic rice strain T2A-1, which expresses cry2Aa. Moreover, downregulation of Csalp1, Csalp2, Csalp3, Csalp4 and Csalp5 transcripts conferred significant tolerance to the transgenic rice strain T1C-19, which expresses cry1Ca. These results suggest that these ALPs play a key role in the toxicity of Cry1A, Cry2A and Cry1C to C. suppressalis.
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Liu XX, Li DD, Li HL, Hou LA, Liu ZJ, Yang HY, Qiu L. [Research on blood distribution of Tibetan population in Ali area]. ZHONGHUA YI XUE ZA ZHI 2017; 97:3628-3631. [PMID: 29275605 DOI: 10.3760/cma.j.issn.0376-2491.2017.46.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the distribution of ABO blood group in the healthy population in the Ali area of Tibet, and to analyze the difference of blood group distribution between the Tibetan population in Ali and the Tibet Tibetan population. Methods: The blood distribution of 509 apparent healthy volunteers of Tueti County and Gal County, Tibet, which were randomly selected from September to November in 2016; 137 Tibetan blood donors, from 2016 September to2017 July and 84 Tibetan blood donors from 2015 August to 2017 July was analyzed retrospectively. The blood type was tested by the slide method. By reviewing the Chinese and foreign language database, seven articles on Tibetan blood group distribution were obtained. And the data of the blood distribution of the Ali area population and the Tibet Tibetan population were compared. Results: The ABO phenotype frequencies of 507 apparent healthy people, 137 blood donors and 84 recipients were B>O>A>AB. The composition ratio were 36.1%, 34.5%, 21.5 %, 7.9%; 40.1%, 35.0%, 17.5%, 7.3%; 39.3%, 34.5%, 20.2%, 6.0%.There was no statistically significant difference in blood group distribution between the donors and the recipients (P>0.05). And there was no significant difference in the blood group distribution between Ali and Shigatse, Nagqu, Lhasa, Shannan. However, the differences between Ali and Qamdo, Nyingchi areas were statistically significant. Conclusion: The geographical position of the blood from the west to east, B type shows a downward trend, O type blood composition ratio shows an upward trend.
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Zhang XH, Wang Q, Zheng W, Li XH, Jiang QQ, Zhou CF, Qiu LQ. [Early physical growth and disease analysis among children born delivered by HBsAg-positive mothers]. ZHONGHUA YU FANG YI XUE ZA ZHI [CHINESE JOURNAL OF PREVENTIVE MEDICINE] 2017; 51:496-500. [PMID: 28592092 DOI: 10.3760/cma.j.issn.0253-9624.2017.06.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To estimate the early physical growth and disease in children born to HBsAg-positive mothers. Methods: This was a retrospective cohort study. Three areas as Xihu in Hangzhou, Lanxi in Jinhua, and Haiyan in Jiaxing in Zhejiang province were selected by cluster sampling. The growth outcomes of children born to HBsAg-positive mothers (exposure group) and matched 1∶1 women uninfected with HBV (control group) in 2014 were investigated and compared at birth, 6, 9, 12, and 18 months, respectively. There were totally 342 children in each group. Results: The incidences of low birth weight (LBW) for children born to exposure and control group were 1.8% (6/342), and 2.6% (9/342), respectively (P=0.433); and, rates of preterm birth were 2.3% (8/342), and 2.0% (7/342), respectively (P=0.794). The mean birth weight of children born to mothers without HBV infection (3.4±0.4) kg was dramatically higher than children in exposure group (3.3±0.4) kg (P=0.019). At 18 months, the average head circumference was significantly greater among children in control group (47.3±1.3) cm than children in exposure group (47.0±2.0) cm (P=0.038). Additional, mean birth weeks, height, weight, increases in height/weight/head circumference each month, weight/height/head circumference for age Z scores, proportion of growth retardation and low weight, disease prevalence were not observed statistically differences between two groups (P>0.05). All children born to HBsAg-positive mothers were received three-dose HBV vaccination. The rate of hepatitis B immunoglobulin for births born to HBsAg-positive was 98.8% (338/342). Mother to children transmission of HBV at 18 months was 1.0% (1/97). Conclusion: No significant differences in growth development and disease prevalence were found among children born to HBsAg-positive women and women without HBV infection.
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Ou CY, Ran H, Qiu L, Huang ZD, Lin ZZ, Deng J, Liu WB. [Correlation factors of 127 times pre-crisis state in patients with myasthenia gravis]. ZHONGHUA YI XUE ZA ZHI 2017; 97:2884-2889. [PMID: 29050155 DOI: 10.3760/cma.j.issn.0376-2491.2017.37.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinical features of the Pre-Crisis State and analyze the correlated risk factors of Pre-Crisis State of myasthenia crisis. Methods: We included 93 patients with myasthenia gravis (MG) who experienced 127 times Pre-Crisis State between October 2007 and July 2016. Those patients were hospitalized in the MG specialize center, Department of Neurological Science, first Affiliated Hospital of Sun Yat-sen University. The information of the general situation, the clinical manifestations and the blood gas analysis in those patients were collected using our innovated clinical research form. Statistic methods were applied including descriptive analysis, univariate logistic analysis, multivariate correlation logistic analysis, etc. Results: (1)The typical features of MG Pre-Crisis State included: dyspnea (127 times, 100% not requiring intubation or non-invasive ventilation), bulbar-muscle weakness (121 times, 95.28%), the increased blood partial pressure of carbon dioxide (PCO(2)) (94 times, 85.45%), expectoration weakness (99 times, 77.95%), sleep disorders (107 times, 84.25%) and the infection (99 times, 77.95%). The occurrence of dyspnea in combination with bulbar-muscle weakness (P=0.002) or the increased blood PCO(2) (P=0.042) often indicated the tendency of crisis. (2) The MG symptoms which were proportion to the occurrence of crisis includes: bulbar-muscle weakness (P=0.028), fever (P=0.028), malnutrition (P=0.066), complications (P=0.071), excess oropharyngeal secretions (P=0.005) and the increased blood PCO(2) (P=0.007). The perioperative period of thymectomy would not increase the risk of crisis. Conclusions: Dyspnea indicates the occurrence of the Pre-Crisis State of MG. In order to significantly reduce the morbidity of myasthenia crisis, the bulbar-muscle weakness, the increased blood PCO(2), expectoration weakness, sleep disorders, infection & fever and excess oropharyngeal secretions should be treated timely.
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Wang Y, Xu P, Qiu L, Zhang M, Huang Y, Zheng JC. CXCR7 Participates in CXCL12-mediated Cell Cycle and Proliferation Regulation in Mouse Neural Progenitor Cells. Curr Mol Med 2017; 16:738-746. [PMID: 27573194 PMCID: PMC5345320 DOI: 10.2174/1566524016666160829153453] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 08/23/2016] [Accepted: 08/24/2016] [Indexed: 12/30/2022]
Abstract
Background: Cell cycle regulation of neural progenitor cells (NPCs) is an essential process for neurogenesis, neural development, and repair after brain trauma. Stromal cell-derived factor-1 (SDF-1, CXCL12) and its receptors CXCR4 and CXCR7 are well known in regulating the migration and survival of NPCs. The effects of CXCL12 on NPCs proliferation, cell cycle regulation, and their associated signaling pathways remain unclear. Cyclin D1 is a protein required for progression through the G1 phase of the cell cycle and a known downstream target of β-catenin. Therefore, cyclin D1 plays critical roles of cell cycle regulation, proliferation, and survival in NPCs. Methods: Primary mouse NPCs (mNPCs) were derived from brain tissues of wild-type, Cxcr4 knockout, or Cxcr7 knockout mice at mouse embryonic day 13.5 (E13.5). Flow cytometry was used to perform cell cycle analysis by quantitation of DNA content. Real-time PCR and Western blot were used to evaluate mRNA and protein expressions, respectively. Ki67 immunostaining and TUNEL assay were used to assess the proliferation and survival of mNPCs, respectively. Results: CXCL12 pretreatment led to the shortening of G0/G1 phase and lengthening of S phase, suggesting that CXCL12 regulates cell cycle progression in mNPCs. Consistently, CXCL12 treatment increased the expression of CyclinD1 and β-catenin, and promoted proliferation and survival of mNPCs. Cxcr7 knockout of mNPCs blocked CXCL12-mediated mNPCs proliferation, whereas Cxcr4 knockout mNPC did not significantly effect CXCL12- mediated mNPCs proliferation. Conclusion: CXCR7 plays an important role in CXCL12-mediated mNPC cell cycle regulation and proliferation.
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Qiu L, Stephans K, Shah C, Godley A. Auto-Contour Guided Prostate Patient Positioning. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.2317] [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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Huang Y, Qiu L, Mei AL, Li JX. [Meta-analysis on the diagnostic value of laser Doppler imaging for burn depth]. ZHONGHUA SHAO SHANG ZA ZHI = ZHONGHUA SHAOSHANG ZAZHI = CHINESE JOURNAL OF BURNS 2017. [PMID: 28651422 DOI: 10.3760/cma.j.issn.1009-2587.2017.05.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the value of laser Doppler imaging (LDI) in diagnosing deep or superficial partial-thickness burn wound with meta-analysis. Methods: Databases including PubMed, Cochrane Library were searched using key words " burn, burns, burn depth, laser Doppler imaging, laser Doppler perfusion imaging, LDI, LDPI" , and Chinese Journals Full-text Database, Wanfang Database, VIP Database were searched using Chinese key words ",,,," to obtain the published trials of LDI in diagnosing deep or superficial partial-thickness burn wound from the establishment of each database to October 2015. The risk of bias and applicability concerns of the included studies were evaluated by Quality Assessment of Diagnostic Accuracy Studies-2. Data were processed with Meta-DiSc 1.4 statistical software. The heterogeneity among the included studies was evaluated. The pooled estimates of LDI in diagnosing deep or superficial partial-thickness burn wound in the included studies, including sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, diagnostic odds ratio, as well as the area under the curve of summary receiver operating characteristic and index of Q(*) were calculated. The stability of results of the overall pooled estimates of the included studies was validated by sensitivity analysis. The sources of heterogeneity among the included studies were sought through subgroup analysis. The publication bias caused by the results of the included studies was evaluated by drawing the Deek's funnel plot. Results: A total of 5 articles conforming to the inclusion criteria, involving 138 patients and 179 burn wounds, were included. One of the included studies had low risk of bias, while the other 4 studies had high/unclear risk of bias. In applicability concern aspect, one of the included studies had high/unclear concerns regarding applicability, while the other 4 studies had low concerns regarding applicability. There was no heterogeneity caused by threshold effects among the included studies (no " shoulder arm" plot of the scattered-point distribution was observed in the space of the receiver operating characteristic, β(s)=0.01, P>0.05). There was a high heterogeneity caused by non-threshold effects among the included studies (sensitivity I(2)=54%). The overall pooled sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, and diagnostic odds ratio of the included studies on LDI in diagnosing deep or superficial partial-thickness burn wound were 95% (with 95% confidence interval 88%-99%), 96% (with 95% confidence interval 90%-99%), 9.75 (with 95% confidence interval 4.35-21.81), 0.11 (with 95% confidence interval 0.05-0.22), and 257.93 (with 95% confidence interval 58.96-1 128.41), respectively. The area under the curve of summary receiver operating characteristic was 0.98, with index of Q(*) 94%. The results of the overall pooled estimates of the included studies was stable. The risk of bias of the selection of the patients, equipment type of LDI, and the selection of diagnostic method in control might be sources of the heterogeneity of the included studies. The Deek's funnel plot indicated that there was no publication bias caused by the results of the included studies (P>0.05). Conclusions: LDI has high sensitivity, specificity, positive likelihood ratio, diagnostic odds ratio and index of Q(*,) large area under the curve of summary receiver operating characteristics, and low negative likelihood ratio in diagnosing deep or superficial partial-thickness burn wound, which has relatively high diagnostic value.
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Yang HH, Qiu L, Zhao JQ, Yang N, Gong LF, Kong YY. [Epidemiologic characteristics and risk factors for congenital hypothyroidism from 1989 to 2014 in Beijing]. ZHONGHUA YU FANG YI XUE ZA ZHI [CHINESE JOURNAL OF PREVENTIVE MEDICINE] 2017; 50:728-32. [PMID: 27539527 DOI: 10.3760/cma.j.issn.0253-9624.2016.08.011] [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 epidemiologic characteristics and risk factors for congenital hypothyroidism (CH) in Beijing between the years 1989 and 2014. METHODS Information on neonatal screening, and diagnoses and treatment of CH from 1989 to 2014 were obtained from the database of the Beijing Neonatal Screening Center. The screening parameter was thyroid-stimulating hormone (thyrotropin; TSH), which was measured by radioimmunoassay (RIA) from 1989 to 1995, enzyme-linked immunosorbent assay (ELISA) from 1996 to 2003, and time-resolved fluorescence immunoassay (DELFIA(®)) from 2004 to 2014. The cutoff value of each screening method was set as the international standard for the corresponding years (20 mIU/L from 1989 to 1995 and 10 mIU/L from 1996 to 2014). CH was diagnosed using "The Technical Specification of Diagnosis and Treatment of Phenylketonuria and Congenital Hypothyroidism" , published in 2010 by the Ministry of Health of the People's Republic of China. Data on live birth infants were obtained from Beijing obstetric quality reports. The incidence of CH using different screening methods was compared, and trends in annual incidence were analyzed. To exclude the influence of different screening methods, data from the years 2004 to 2014 were used to identify the risk factors for CH. RESULTS Between 1989 and 2014, the incidence of CH in Beijing was 36.7 per 100 000 individuals, with permanent CH (PCH) and transient CH (TCH) having incidences of 16.4 per 100 000 and 15.9 per 100 000, respectively. The annual incidence of CH increased from 11.2 per 100 000 in 1989 to 51.0 per 100 000 in 2014 (χ(2)=119.02, P<0.001), with PCH increasing from 5.6 to 16.0 per 100 000 (χ(2)=34.38, P<0.001) and TCH increasing from 5.6 to 13.0 per 100 000 (χ(2)=26.93, P<0.001). Among the PCH cases, 70.44% (255/362) were thyroid dysgenesis or ectopic glands, while the other 29.56% (107/362) were dyshormonogenesis. Between 2004 and 2014, the incidence of CH in females (51.7/100 000) was higher than in males (37.0/100 000), and it was higher in post-term (334.5/100 000) and preterm births (77.8/100 000) than that in term births (41.4/100 000). It was also higher in the low birth weight (87.7/100 000) than the normal (42.4/100 000) and high birth weight (42.6/100 000) populations. CONCLUSIONS Between 1989 and 2014, there was a tendency towards an increase in the overall incidence of CH, and the incidence of both PCH and TCH in Beijing. Female sex, preterm birth, older gestational age, low birth weight, and preterm birth were risk factors affecting the incidence of CH in Beijing.
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Zhao W, Xu P, Fu D, Li J, Wang X, Hu J, Zhou J, Yu H, Zhao X, Su L, Chen Z, Zeng Q, Chen J, Fang M, Ma J, Liu T, Song Y, Yu K, Li Y, Qiu L, Chen X, Gu J, Yan J, Hou M, Xiong H. ANTHRACYCLINE DOSE INTENSIFICATION IN DIFFUSE LARGE B-CELL LYMPHOMA. Hematol Oncol 2017. [DOI: 10.1002/hon.2438_48] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Yang HL, Qiu L, Liu Q, Wan XY, Liu S, Zhu LL, Yang B, Zhang QL, Huang J. A novel method of real-time reverse-transcription loop-mediated isothermal amplification developed for rapid and quantitative detection of a new genotype (YHV-8) of yellow head virus. Lett Appl Microbiol 2017; 63:103-10. [PMID: 27221155 DOI: 10.1111/lam.12591] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 04/08/2016] [Accepted: 04/08/2016] [Indexed: 12/01/2022]
Abstract
UNLABELLED A new genotype of yellow head virus (YHV), designated as YHV-8, was found in farmed shrimp Fenneropenaeus chinensis suffering suspectedly from EMS/AHPNS (early mortality disease/acute hepatopancreatic necrosis disease) in China in 2012. In this study, a one-step, real-time reverse-transcription loop-mediated isothermal amplification (rRT-LAMP) assay was developed for better detection of both genotypes of YHV-1 and YHV-8. A set of six specific primers was successfully designed targeting a conserved region of the YHV genome. The LAMP reaction was optimized to contain 8 mmol l(-1) Mg(2+) and 1·4 mmol l(-1) dNTPs, and to be performed at 58°C for 60 min. The detection sensitivity of the rRT-LAMP method was as low as 7 × 10(0) copies per reaction. The specificity of the method was validated by the absence of any cross-reaction with the RNA samples extracted from other shrimp viruses (Taura syndrome virus, white spot syndrome virus, infectious hypodermal and haematopoietic necrosis virus, hepatopancreatic parvovirus) and specific pathogen-free (SPF) shrimp. The resulting standard curves showed high correlation coefficient values. Furthermore, the test of farm samples showed that YHV was detected in three of 111 Litopenaeus vannamei, six of eight Fenneropenaeus chinensis, five of 19 Macrobrachium rosenbergii and none of the nine Marsupenaeus japonicus. These results suggest that this assay is applicable widely as a new rapid and sensitive detection method in the research of YHV. SIGNIFICANCE AND IMPACT OF THE STUDY In this study, we designate a new genotype of yellow head virus (YHV) as YHV genotype 8 (YHV-8) which was detected in diseased shrimp in China. A rapid, sensitive and specific rRT-LAMP detecting method for both YHV-8 and YHV-1 has been established. It is anticipated that this novel assay will be instrumental for diagnosis and surveillance of the virulent genotypes of YHV.
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Xiong W, Lv R, Li H, Li Z, Wang H, Liu W, Zou D, Qiu L, Yi S. Prevalence of hepatitis B and hepatitis C viral infections in various subtypes of B-cell non-Hodgkin lymphoma: confirmation of the association with splenic marginal zone lymphoma. Blood Cancer J 2017; 7:e548. [PMID: 28362442 PMCID: PMC5380912 DOI: 10.1038/bcj.2017.28] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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Qin X, Tang G, Gao R, Guo Z, Liu Z, Yu S, Chen M, Tao Z, Li S, Liu M, Wang L, Hou L, Xia L, Cheng X, Han J, Qiu L. A multicenter study on PIVKA reference interval of healthy population and establishment of PIVKA cutoff value for hepatocellular carcinoma diagnosis in China. Int J Lab Hematol 2017; 39:392-401. [PMID: 28318145 DOI: 10.1111/ijlh.12639] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 01/16/2017] [Indexed: 11/30/2022]
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Xia LY, Cheng XQ, Liu Q, Liu L, Qin XZ, Zhang L, Ding JW, Xu EM, Qiu L. [Developing and application of an autoverification system for clinical chemistry and immunology test results]. ZHONGHUA YI XUE ZA ZHI 2017; 97:616-621. [PMID: 28260308 DOI: 10.3760/cma.j.issn.0376-2491.2017.08.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To develop and validate an autoverification system for biochemistry and immunology test results for application in routine work. Methods: Algorithms was designed and translated into the laboratory information system. Parameters including verify limit, delta check, logic relation between tests was set up in the system. Verification rate of every test and the causes of fails were analyzed, according to which the system and parameters were modified. The autoverified reports were evaluated by chief technicians. Only when all of the autoverified results pass the evaluation, the system applied for routine work of releasing the results. Autoverification rate and turnaround time(TAT) were calculated for evaluation of the efficiency of the system. Results: A brand new autoverification system was developed and applied for routine work. The autoverification rate for each single test was 91.1%-96.6%. The autoverification rate for reports was 74%. With the autoverification system, the media of TAT reduced from 111.6(53.9-270.7) min to 87.2(45.4-202.4) min, whereas the time from instrument finishing analysis to releasing the reports reduced from 18.6(1.0-99.3) min to 0.1(0-58.3)min. The number of staff specified for results validation reduced from three to one. Conclusions: The newly developed system can be used for autoverification of biochemistry and immunology test results. The autoverification system can greatly reduce TAT and raise working efficiency. It's essential to employ carefully designed algorithm, appropriate parameters and comprehensive evaluation when developing a new autoverification system.
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Chapman KB, Copeland K, Kidd J, Qiu L, Sheibani N, Tam O, Friedman L, Korn R, Fiorica J, Lourenco A, Suthers S, Hesterberg L. Abstract P5-03-05: Development of a panel of serum-based protein biomarkers for the non-invasive detection of breast cancer in BI-RADS category 4 patients. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p5-03-05] [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
Background: Current breast cancer screening guidelines call for annual mammography for asymptomatic women age 45 to 54 and once every two years for women age 55 and older. Women with suspicious screening mammograms are recommended for a diagnostic mammogram and may also undergo MRI or ultrasound. Ultimately, suspicious findings unresolved by imaging typically result in the recommendation of a breast biopsy. Approximately 10% of suspicious diagnostic mammograms are recommended for breast biopsies and 67% to 95% of these biopsies yield negative results. With the goal of reducing the number of patients with benign pathology undergoing invasive biopsies, we conducted a screen for serum protein biomarkers and identified a novel panel for the non-invasive detection of breast cancer.
Methods: Serum samples were collected at two sites from women with suspicious diagnostic mammogram findings (primarily BI-RADS category 4) undergoing biopsy for the evaluation of a potential malignancy. Serum samples from 100-patients (50 benign pathology and 50 malignant pathology) were evaluated on the SOMAscan Assay 1.3k, which measures levels of 1,310 different protein analytes. Statistical screening methodologies, such as individual t-tests with control for false discovery, were used to identify markers with the potential to distinguish benign from malignant pathology. The candidate markers were further studied and combined using generalized linear modeling to develop three potential diagnostic models. K-fold cross validation was used to guard against over fitting of the models.
Results: A 15-marker model resulted in an AUC of 0.92 with a sensitivity of 90% and specificity of 76%. Two 6-marker models (with 4 markers in common) each resulted in AUC of 0.85, yielding a sensitivity of 90% with a specificity of 56% or 64%.
Conclusions: This study reveals a novel panel of serum protein biomarkers that may allow for the non-invasive and sensitive detection of breast cancer in BI-RADS category 4 patients. A multicenter study is underway to further refine and validate this panel in a larger set of prospectively collected patient samples.
Citation Format: Chapman KB, Copeland K, Kidd J, Qiu L, Sheibani N, Tam O, Friedman L, Korn R, Fiorica J, Lourenco A, Suthers S, Hesterberg L. Development of a panel of serum-based protein biomarkers for the non-invasive detection of breast cancer in BI-RADS category 4 patients [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P5-03-05.
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Liu YH, Li B, Meng FG, Qiu L. MiR-508-5p is a prognostic marker and inhibits cell proliferation and migration in glioma. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2017; 21:76-81. [PMID: 28121353] [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 Increasing evidence has informed that dysregulation of microRNAs (miRNAs) may contribute to carcinogenesis in human. The aim of the present study was to determine the role of miR-508-5p in glioma. PATIENTS AND METHODS Quantitative real-time PCR was performed to detect the expression levels of miR-508-5p in glioma and normal control tissues. In vitro, migration assays and a wound-healing assay were performed to determine the effects of miR-508-5p. Associations between miR-508-5p expressions and various clinicopathological characteristics were analyzed. Survival rate was determined with Kaplan-Meier. Univariate and multivariate analyses were performed to estimate the effects of the expression of miR-508-5p on survival. RESULTS The expression of miR-508-5p was downregulated in glioma tissues and cell lines. Low miR-508-5p expression was related to WHO grade (p = 0.005) and KPS score (p = 0.013). Moreover, Kaplan-Meier survival analysis showed that low miR-508-5p expression was significantly associated with short overall survival (p = 0.0059). Furthermore, multivariate analysis revealed that miR-508-5p was an independent prognostic factor for the overall survival in glioma (p = 0.002). Finally, forced expression of miR-508-5p could inhibit glioma cell growth and metastasis in vitro. CONCLUSIONS Taken together, our study suggested that miR-508-5p may be served as a novel prognostic factor and may lead to new treatment strategies for glioma.
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Baragi V, Jonat C, Renkiewicz R, Qiu L, Man C. Effects of Tetracycline on Cartilage Degradation and Matrix Metalloproteinase Activity/Expression. Adv Dent Res 2016. [DOI: 10.1177/08959374980120012301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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91
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Zhang H, Wang X, Dong L, Lv H, Li W, Song Z, Li L, Zhou S, Qiu L, Qian Z, Liu X, Feng L, Meng B, Fu K, Wang X, Pan-Hammarström Q, Wang P. 332O Co-expression of PD-L1 and p-AKT is associated with poor prognosis in diffuse large B-cell lymphoma via PD-1/PD-L1 axis activating intracellular AKT/mTOR pathway in tumor cells. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw586.001] [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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92
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Qiu L. [Differential textual research and analysis on the evolution of fritillaria species in successive dynasties]. ZHONGHUA YI SHI ZA ZHI (BEIJING, CHINA : 1980) 2016; 46:323-328. [PMID: 28103977 DOI: 10.3760/cma.j.issn.0255-7053.2016.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Rhizoma bolbostemmae was the earliest applied fritillaria species during the period of pre-Qin to Han Dynasties in China. In the period of Wei-Jin, the fritillaria species presented diversities, with Zhejiang-fritillary also appeared for the first time. During the period of the Tang Dynasty to late Ming Dynasty, the fritillaria species kept expanding, Fritillaria hupehensis and Zhejiang-fritillary were deemed authentic species all the time. To the end of the Ming Dynasty, Fritillaria hupehensis withdrew from the stage of history gradually, Fritillaria cirrhosa came into being and then Fritillaria cirrhosa and Zhejiang-fritillary both appeared and became two important species of medicinal fritillarias after late Ming dynasty until today. In the period of the Qing Dynasty, the cognition of Fritillaria cirrhosa, Zhejiang-fritillary and rhizoma bolbostemmae became more and more clear. The fritillaria species continued to expand, and counterfeit and local species began to appear in large numbers.
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Qin Y, Zhang S, Deng S, An G, Qin X, Li F, Xu Y, Hao M, Yang Y, Zhou W, Chang H, Qiu L. Epigenetic silencing of miR-137 induces drug resistance and chromosomal instability by targeting AURKA in multiple myeloma. Leukemia 2016; 31:1123-1135. [PMID: 27857131 DOI: 10.1038/leu.2016.325] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 07/26/2016] [Accepted: 09/01/2016] [Indexed: 12/12/2022]
Abstract
Multiple myeloma (MM) is the second most prevalent hematologic malignancy. Aberrant microRNAs (miRNAs) expression has been shown to be involved in the pathogenesis of MM. In this study, we further demonstrated that miR-137 was significantly downregulated in MM and negatively correlated with clinical prognosis. Moreover, we described the epigenetic regulation of miR-137 and its association with progression-free survival in MM patients. Furthermore, overexpression of miR-137 in MM cell line (miR-137 OE) increased its sensitivity to bortezomib and eprirubicin in vitro. Also, some high-risk genetic abnormalities in MM, including deletion of chromosome 1p22.2, 14q or 17p13, and gain of chromosome 1p22.2 were detected in NCI-H929 empty vector (NCI-H929 EV) treated cells but not in the NCI-H929 miR-137 overexpression (NCI-H929 miR-137 OE) cells. Luciferase reporter assays demonstrated that miR-137 targeted AURKA. Ectopic expression of miR-137 strongly reduced the expression of AURKA and p-ATM/Chk2 in MM cells, and increased the expression of p53, and p21. Importantly, miR-137 overexpression together with bortezomib treatment significantly inhibited tumor growth in MM xenograft model. Taken together, this study demonstrates that miR-137 is epigenetically silenced in MM, and overexpression of miR-137 could reduce drug resistance and overcome chromosomal instability of the MM cells via affecting the apoptosis and DNA damage pathways.
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Qiu L, Stephans K, Vassil A, Shah C, Godley A. Strategies for Autocontouring Cone Beam Computed Tomography Scans for Prostate Online Adaptive Therapy. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.2325] [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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Zheng Y, Qiu L, Fan L, Song C, Meng S, Chen J. Effect of polychlorinated biphenyls on osmoregulatory response and apoptosis in GIFT tilapia, Oreochromis niloticus. GENETICS AND MOLECULAR RESEARCH 2016; 15:gmr8620. [PMID: 27706697 DOI: 10.4238/gmr.15038620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In the present study, GIFT tilapia Oreochromis niloticus were exposed to polychlorinated biphenyls (PCBs) for 7, 14, and 21 days. Over the duration of the exposure, genotoxicity and the activity of Na+/K+-ATPase (NKA) and Ca+/Mg+-ATPase (CMA) were measured in the gill, kidney, and intestine, to evaluate changes in osmoregulatory response in O. niloticus. Our results showed significant decreases in organic NKA (except in gill tissues after 0.5 mg/L PCB-exposure) and CMA activity. The results of the genotoxicity assay showed significant increases in atp1a1a, nkcc2 (only in gill tissue), and fxyd7 (except after 21 days of 5 mg/L PCB exposure). We found significant increases in caspase proteins in the liver in the 5-mg/L PCB exposure group, and the transcripts showed dose-dependent increases between treatment groups over the exposure duration. This study presents evidence that chronic exposure to PCB could result in organic osmoregulatory response and hepatic apoptosis in GIFT tilapia.
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Liu F, Zhu N, Qiu L, Wang JJ, Wang WH. [Application of R-based multiple seasonal ARIMA model, in predicting the incidence of hand, foot and mouth disease in Shaanxi province]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 2016; 37:1117-20. [PMID: 27539344 DOI: 10.3760/cma.j.issn.0254-6450.2016.08.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To apply the ' auto-regressive integrated moving average product seasonal model' in predicting the number of hand, foot and mouth disease in Shaanxi province. METHODS In Shaanxi province, the trend of hand, foot and mouth disease was analyzed and tested, under the use of R software, between January 2009 and June 2015. Multiple seasonal ARIMA model was then fitted under time series to predict the number of hand, foot and mouth disease in 2016 and 2017. RESULTS Seasonal effect was seen in hand, foot and mouth disease in Shaanxi province. A multiple seasonal ARIMA (2,1,0)×(1,1,0)12 was established, with the equation as (1 -B)(1 -B12)Ln (Xt) =((1-1.000B)/(1-0.532B-0.363B(2))*(1-0.644B12-0.454B12(2)))*Epsilont. The mean of absolute error and the relative error were 531.535 and 0.114, respectively when compared to the simulated number of patients from Jun to Dec in 2015. RESULTS under the prediction of multiple seasonal ARIMA model showed that the numbers of patients in both 2016 and 2017 were similar to that of 2015 in Shaanxi province. CONCLUSION Multiple seasonal ARIMA (2,1,0)×(1,1,0)12 model could be used to successfully predict the incidence of hand, foot and mouth disease in Shaanxi province.
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Yuan XG, Zhang X, Fu YX, Tian XF, Liu Y, Xiao J, Li TW, Qiu L. Sequential therapy with "vacuum sealing drainage-artificial dermis implantation-thin partial thickness skin grafting" for deep and infected wound surfaces in children. Orthop Traumatol Surg Res 2016; 102:369-73. [PMID: 27038673 DOI: 10.1016/j.otsr.2016.01.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 12/29/2015] [Accepted: 01/06/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To evaluate the efficacy of a "vacuum sealing drainage (VSD) - artificial dermis implantation (ADI) - thin partial thickness skin grafting (TSG)" sequential therapy for deep and infected wounds in children. MATERIALS AND METHODS Fifty-three pediatric patients with deep and infected wounds were treated with sequential VSD-ADI-TSG therapy. The efficacy of this treatment was compared with that of the surgical debridement-change dressings-thin partial thickness skin grafting previously performed on 20 patients. Survival of tissue grafts, color and flexibility, subcutaneous fullness and scar formation of the graft site were examined and compared. RESULTS The sequential therapy combined the advantages of the VSD treatment, in reducing tissue necrosis and infection on the wound surfaces and promoting the growth of granulation tissue, with the enhancement of grafting by artificial dermis. Compared with the 20 controls, skin grafted on the artificial dermis was more smooth and glossy, while the textures of the region were more elastic, and the scars were significantly lighter in Vancouver scale. CONCLUSION The sequential VSD-ADI-TSG therapy is a simple and effective treatment for children with deep and infected wounds. LEVEL OF EVIDENCE IV.
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Guzonas D, Qiu L, Livingstone S, Rousseau S. Fission Product Release Under Supercritical Water-Cooled Reactor Conditions. JOURNAL OF NUCLEAR ENGINEERING AND RADIATION SCIENCE 2016. [DOI: 10.1115/1.4031381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Most supercritical water-cooled reactor (SCWR) concepts being considered as part of the Generation IV initiative are direct cycle. In the event of a fuel defect, the coolant will contact the fuel pellet, potentially releasing fission products and actinides into the coolant and transporting them to the turbines. At the high pressure (25 MPa) in an SCWR, the coolant does not undergo a phase change as it passes through the critical temperature in the core, and nongaseous species may be transported out of the core and deposited on out-of-core components, leading to increased worker dose. It is therefore important to identify species with a high risk of release and develop models of their transport and deposition behavior. This paper presents the results of preliminary leaching tests in SCW of U-Th simulated fuel pellets prepared from natural U and Th containing representative concentrations of the (inactive) oxides of fission products corresponding to a fuel burnup of 60 GWd/ton. The results show that Sr and Ba are released at relatively high concentrations at 400°C and 500°C.
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Qiu L, Wu J, Pan C, Tan X, Lin J, Liu R, Chen S, Geng R, Huang W. Downregulation of CDC27 inhibits the proliferation of colorectal cancer cells via the accumulation of p21Cip1/Waf1. Cell Death Dis 2016; 7:e2074. [PMID: 26821069 PMCID: PMC4816181 DOI: 10.1038/cddis.2015.402] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 12/01/2015] [Accepted: 12/03/2015] [Indexed: 12/14/2022]
Abstract
Dysregulated cell cycle progression has a critical role in tumorigenesis. Cell division cycle 27 (CDC27) is a core subunit of the anaphase-promoting complex/cyclosome, although the specific role of CDC27 in cancer remains unknown. In our study, we explored the biological and clinical significance of CDC27 in colorectal cancer (CRC) growth and progression and investigated the underlying molecular mechanisms. Results showed that CDC27 expression is significantly correlated with tumor progression and poor patient survival. Functional assays demonstrated that overexpression of CDC27 promoted proliferation in DLD1 cells, whereas knockdown of CDC27 in HCT116 cells inhibited proliferation both in vitro and in vivo. Further mechanistic investigation showed that CDC27 downregulation resulted in G1/S phase transition arrest via the significant accumulation of p21 in HCT116 cells, and the upregulation of CDC27 promoted G1/S phase transition via the attenuation of p21 in DLD1 cells. Furthermore, we also demonstrated that CDC27 regulated inhibitor of DNA binding 1 (ID1) protein expression in DLD1 and HCT116 cells, and rescue assays revealed that CDC27 regulated p21 expression through modulating ID1 expression. Taken together, our results indicate that CDC27 contributes to CRC cell proliferation via the modulation of ID1-mediated p21 regulation, which offers a novel approach to the inhibition of tumor growth. Indeed, these findings provide new perspectives for the future study of CDC27 as a target for CRC treatment.
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Liu QZ, Wang Y, Qiu L, Wang TF, Luo SN, Yuan HL, Lin JG. Theoretical studies on the structural, spectroscopic, thermodynamic, and electronic properties of zoledronic acid. J STRUCT CHEM+ 2016. [DOI: 10.1134/s0022476615070124] [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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