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Qiaoyu C, Yanyan H, Yue C, Lijun Y, Benguo Z, Qing H, Lijuan W, Juan L. Accurate identification of sludge contamination sources by classification-based PMF and machine learning with consideration of sewer network distribution differences. Sci Total Environ 2024; 910:168576. [PMID: 37979854 DOI: 10.1016/j.scitotenv.2023.168576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 10/24/2023] [Accepted: 11/12/2023] [Indexed: 11/20/2023]
Abstract
The application of source identification such as PMF for large-scale pollution source analysis frequently produces ambiguous outcomes. In this study, we utilized a classification-based method to accurately track key pollution sources in the sludge. In the study, we categorized the wastewater treatment plants into two groups: T1 and T2, according to the pipeline network. T1 sewage treatment plants are the main sewage plants in urban areas, covering a large area and connected to industrial wastewater treatment plants for secondary treatment. T2 sewage treatment plants are typically smaller in size and usually responsible for treating sewage in rural or township areas. The PMF analysis indicates that industrial pollution sources contribute 3.4 times more to T1 sludge than to T2 sludge, making industrial pollution the primary factor causing the disparity. The application of Random Forest and Adaboost based on pollutant concentrations for classification and fitting of sludge resulted in the identification of the main pollutants: Zn, Cu, Ni, and Cyanide, which align with characteristic pollutants from the electroplating industry. The GIS analysis shows a significant correlation between the distance of wastewater treatment plants with abnormal environmental risk and electroplating industrial parks, all within a 20 km radius. Indeed, when conducting large-scale pollution source identification studies, utilizing classification-based analysis can effectively improve the accuracy of pollution source identification, leading to more valuable analysis results.
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Affiliation(s)
- Chen Qiaoyu
- Chongqing Key Laboratory of Germplasm Innovation and Utilization of Native Plants, Chongqing Landscape and Gardening Research Institute, 401329 Chongqing, China.
| | - Hu Yanyan
- Chongqing Key Laboratory of Germplasm Innovation and Utilization of Native Plants, Chongqing Landscape and Gardening Research Institute, 401329 Chongqing, China
| | - Chen Yue
- Chongqing Key Laboratory of Germplasm Innovation and Utilization of Native Plants, Chongqing Landscape and Gardening Research Institute, 401329 Chongqing, China
| | - Yang Lijun
- Chongqing Key Laboratory of Germplasm Innovation and Utilization of Native Plants, Chongqing Landscape and Gardening Research Institute, 401329 Chongqing, China
| | - Zhu Benguo
- Chongqing Key Laboratory of Germplasm Innovation and Utilization of Native Plants, Chongqing Landscape and Gardening Research Institute, 401329 Chongqing, China
| | - He Qing
- Chongqing Key Laboratory of Germplasm Innovation and Utilization of Native Plants, Chongqing Landscape and Gardening Research Institute, 401329 Chongqing, China
| | - Wang Lijuan
- Chongqing Key Laboratory of Germplasm Innovation and Utilization of Native Plants, Chongqing Landscape and Gardening Research Institute, 401329 Chongqing, China
| | - Li Juan
- Chongqing Key Laboratory of Germplasm Innovation and Utilization of Native Plants, Chongqing Landscape and Gardening Research Institute, 401329 Chongqing, China
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Jihao C, Juan L, Yue L, Jinjing Z. Study on lightening of coal tar with metal oxide supported γ-Al 2O 3 catalyst. Sci Rep 2023; 13:18366. [PMID: 37884641 PMCID: PMC10603164 DOI: 10.1038/s41598-023-45589-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 10/21/2023] [Indexed: 10/28/2023] Open
Abstract
In this experiment, a fixed bed of pyrolysis was used to conduct pyrolysis with coal and a mixture of coal and catalyst, and the distribution and composition of tar products were studied. The pyrolysis of raw coal was carried out at different temperatures and at different constant temperature times, and the effects of pyrolysis temperature and constant temperature pyrolysis time on tar product formation from raw coal pyrolysis were studied. γ-Al2O3 was used as the carrier, and 4 kinds of alkaline earth metal oxides (MgO, CaO, SrO, BaO), 3 kinds of subgroup metal oxides (Fe2O3, Co2O3, NiO) and 5 kinds of VIII metal oxides (Cr2O3, MnO2, CuO, ZnO, MnO2) were selected as active components. The supported γ-Al2O3 catalyst was prepared by the method of equal volume impregnation and roasting in a muffle furnace. The γ-Al2O3 catalyst was characterized by means of XPS, BET and SEM, and the mechanism of the mixed pyrolysis of coal with different metal oxide supported catalysts to generate tar was studied. The results showed that: (1) under the conditions of 450 °C, 500 °C, 550 °C and 600 °C, the maximum tar yield was 0.32 g at 600 °C, and the tar yield was higher at constant temperature for 15 min than at final temperature of 600 °C, with an increase of 15.63%. (2) Fe2O3/γ-Al2O3 catalyst resulted in the highest tar yield of 0.75 g, which was 134.38% higher than that of coal pyrolysis. (3) From the increase of light oil and phenol oil and the decrease of anthracene oil and asphalt, Co2O3/γ-Al2O3, Fe2O3/γ-Al2O3 and Cr2O3/γ-Al2O3 can improve the tar quality better.
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Affiliation(s)
- Chen Jihao
- Shaanxi Coalfield Geological Engineering Technology Co., Ltd, Xi'an, 710054, China.
- Key Laboratory of Coal Resources Exploration and Comprehensive Utilization, Ministry of Natural Resources, Xi'an, 710021, China.
| | - Li Juan
- Shaanxi Coalfield Geological Engineering Technology Co., Ltd, Xi'an, 710054, China
| | - Li Yue
- Shaanxi Coalfield Geological Engineering Technology Co., Ltd, Xi'an, 710054, China
| | - Zhang Jinjing
- Shaanxi Coalfield Geological Engineering Technology Co., Ltd, Xi'an, 710054, China
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Hong-Yu L, Zhi-Jie Z, Juan L, Ting X, Wei-Chun H, Ning Z. Effects of Cerebellar Transcranial Direct Current Stimulation in Patients with Stroke: a Systematic Review. Cerebellum 2023; 22:973-984. [PMID: 36028789 DOI: 10.1007/s12311-022-01464-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/18/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND The cerebellum is involved in regulating motor, affective, and cognitive processes. It is a promising target for transcranial direct current stimulation (tDCS) intervention in stroke. OBJECTIVES To review the current evidence for cerebellar tDCS (ctDCS) in stroke, its problems, and its future directions. METHODS We searched the Web of Science, MEDLINE, CINAHL, EMBASE, Cochrane Library, and PubMed databases. Eligible studies were identified after a systematic literature review of the effects of ctDCS in stroke patients. The changes in assessment scale scores and objective indicators after stimulation were reviewed. RESULTS Eleven studies were included in the systematic review, comprising 169 stroke patients. Current evidence suggests that anode tDCS on the right cerebellar hemisphere does not appear to enhance language processing in stroke patients. Compared with the sham group, stroke patients showed a significant improvement in the verb generation task after cathodal ctDCS stimulation. However, with regard to naming, two studies came to the opposite conclusion. The contralesional anodal ctDCS is expected to improve standing balance but not motor learning in stroke patients. The bipolar bilateral ctDCS protocol to target dentate nuclei (PO10h and PO9h) had a positive effect on standing balance, goal-directed weight shifting, and postural control in stroke patients. CONCLUSIONS ctDCS appears to improve poststroke language and motor dysfunction (particularly gait). However, the evidence for these results was insufficient, and the quality of the relevant studies was low. ctDCS stimulation parameters and individual factors of participants may affect the therapeutic effect of ctDCS. Researchers need to take a more regulated approach in the future to conduct studies with large sample sizes. Overall, ctDCS remains a promising stroke intervention technique that could be used in the future.
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Affiliation(s)
- Li Hong-Yu
- General Hospital of Ningxia Medical University, Yinchuan, 750003, China.
| | - Zhang Zhi-Jie
- Yinchuan Stomatology Hospital, Yinchuan, 750002, China
| | - Li Juan
- General Hospital of Ningxia Medical University, Yinchuan, 750003, China
| | - Xiong Ting
- General Hospital of Ningxia Medical University, Yinchuan, 750003, China
| | - He Wei-Chun
- General Hospital of Ningxia Medical University, Yinchuan, 750003, China
| | - Zhu Ning
- General Hospital of Ningxia Medical University, Yinchuan, 750003, China
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Shangjie C, Yongqiong W, Fuqing X, Zhilin X, Xiaoping Z, Xia S, Juan L, Tiantao Z, Shibin W. Synergistic effects of vegetation and microorganisms on enhancing of biodegradation of landfill gas. Environ Res 2023; 227:115804. [PMID: 37003556 DOI: 10.1016/j.envres.2023.115804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 03/20/2023] [Accepted: 03/29/2023] [Indexed: 05/08/2023]
Abstract
The uncontrolled release of landfill gas represents a significant hazard to both human health and ecological well-being. However, the synergistic interactions of vegetation and microorganisms can effectively mitigate this threat by removing pollutants. This study provides a comprehensive review of the current status of controlling landfill gas pollution through the process of revegetation in landfill cover. Our survey has identified several common indicator plants such as Setaria faberi, Sarcandra glabra, and Fraxinus chinensis that grow in covered landfill soil. Local herbaceous plants possess stronger tolerance, making them ideal for the establishment of closed landfills. Moreover, numerous studies have demonstrated that cover plants significantly promote methane oxidation, with an average oxidation capacity twice that of bare soil. Furthermore, we have conducted an analysis of the interrelationships among vegetation, landfill gas, landfill cover soil, and microorganisms, thereby providing a detailed understanding of the potential for vegetation restoration in landfill cover. Additionally, we have summarized studies on the rhizosphere effect and have deduced the mechanisms through which plants biodegrade methane and typical non-methane pollutants. Finally, we have suggested future research directions to better control landfill gas using vegetation and microorganisms.
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Affiliation(s)
- Chen Shangjie
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Wang Yongqiong
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Xu Fuqing
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Xing Zhilin
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China.
| | - Zhang Xiaoping
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Su Xia
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Li Juan
- Chongqing Academy of Chinese Materia Medica, Chongqing, 400060, China
| | - Zhao Tiantao
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Wan Shibin
- School of Electrical and Electronic Engineering, Chongqing University of Technology, Chongqing, 400054, China
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Desai S, Ruiz J, Paghdar S, Malkani S, Nativi J, Juan L, Yip D, Patel P, Lyle M, Goswami R. Cardiogenic Shock in Eosinophilic Myocarditis. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Xiaozhe L, Meilan C, Beihui H, Junru L, Jingli G, Lifen K, Juan L. Pyridoxine Is Effective for Preventing Hand-Foot Syndrome Induced by Pegylated Liposomal Doxorubicin for Multiple Myeloma: The Results of a Randomized Study. Integr Cancer Ther 2022; 21:15347354221140402. [PMID: 36510385 PMCID: PMC9751154 DOI: 10.1177/15347354221140402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
PURPOSE Pegylated liposomal doxorubicin (PLD) is highly effective for treating multiple myeloma (MM). Hand-foot syndrome (HFS) is a dose-limiting adverse event of PLD that may reduce a patient's quality of life or prevent certain patients from receiving PLD. Several researchers have discovered that pyridoxine, an activated form of vitamin B6, may prevent PLD-associated HFS. We designed a prospective randomized trial to examine whether prophylactic pyridoxine might prevent the incidence or delay the occurrence of PLD-induced HFS in patients with MM. METHODS Patients who met the trial's eligibility requirements were randomized and then administered either pyridoxine 100 mg twice daily or no pyridoxine, in both cases accompanied by their PLD-containing chemotherapeutic agent. Follow-up of patients was performed until the completion of induction therapy, the development of HFS or disease progression. RESULTS Between January 1, 2017, and January 1, 2019, 105 patients were randomly assigned to the pyridoxine group (n = 52) or the no pyridoxine group (n = 53). In the pyridoxine and no pyridoxine groups, HFS developed after a median of 4 (range, 1-8 cycles) and 3 (range, 1-7 cycles) chemotherapeutic cycles, respectively. There were no grade 3 incidents recorded. Overall, 13.3% of patients experienced HFS. A 11 of 53 (20.8%) patients in the no pyridoxine group experienced HFS, compared to 3 of 52 (5.8%) patients in the pyridoxine group (P = .042); there was no difference in HFS grades (P = .725). CONCLUSIONS The findings of benefit from prophylactic pyridoxine in this open-label trial have suggested its promise as a treatment for reducing HFS in MM patients. Further research with a placebo-controlled design is recommended. CLINICAL TRIAL REGISTRATION ChiCTR2100050294.
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Affiliation(s)
- Li Xiaozhe
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Chen Meilan
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Huang Beihui
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Liu Junru
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Gu Jingli
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Kuang Lifen
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Li Juan
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China,Li Juan, Department of Hematology, The First Affiliated Hospital of Sun Yat-sen University, No. 58 Zhongshan Er Road, Guanghzou, Guangdong 510000, China.
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Rey M, Rouffy V, Juan L, Blanchet A, Peaureaux M, Ratti N, Parreau S, Bezanahary H, Gondran G, Palat S, Desvaux E. Toxi infection alimentaire collective faisant découvrir un botulisme. Rev Med Interne 2022. [DOI: 10.1016/j.revmed.2022.10.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Xu-yuan T, Rui-nan Q, Ze-yong W, Juan L, Tao X, Yi-qun Y. Vision loss due to uncommon "red eye": A case report. Medicine (Baltimore) 2022; 101:e31064. [PMID: 36254084 PMCID: PMC9575782 DOI: 10.1097/md.0000000000031064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
RATIONALE Phacolytic glaucoma is a rare complication induced by hypermature cataracts and may occasionally be encountered in some rural areas. It tends to be misdiagnosed and induces a risk of permanent vision impairment. PATIENT CONCERNS A 63-year-old Uighur woman complained of redness and decreased vision in her right eye and was treated for endophthalmitis at a primary hospital before being referred to our hospital. DIAGNOSIS On admission, the patient had weak light perception in the right eye, an intraocular pressure of 65 mmHg, and slit-lamp examination revealed swelling of the eyelids and significant injection of conjunctiva. The entire cornea was cloudy and edematous, whereas the aqueous humor was milky turbid. Cytological examination of the aqueous liquid confirmed the presence of lens protein-laden macrophages. A Morgagnian cataract was observed after anterior chamber irrigation. So the final diagnosis was phacolytic glaucoma. INTERVENTIONS The patient received anterior chamber irrigation and extracapsular cataract extraction with intraocular lens implantation successively. OUTCOMES Final visual acuity was limited to 6/120 due to secondary optic nerve damage. LESSONS Phacolytic glaucoma can mimic endophthalmitis and tend to be misdiagnosed, causing permanent vision impairment. Improving awareness of phacolytic glaucoma and enhancing public health education regarding cataracts are ways to prevent phacolytic glaucoma and phacolytic glaucoma-related vision loss.
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Affiliation(s)
- Tang Xu-yuan
- Department of Ophthalmology, The First Affiliated Hospital, School of Medicine, Zhejiang University, China
- Department of Ophthalmology, The Fourth Affiliated Hospital, School of Medicine, Shihezi University, China
- *Correspondence: Tang Xuyuan, Department of Ophthalmology, The First Affiliated Hospital, School of Medicine, Zhejiang University, 310006, China (e-mail: )
| | - Qi Rui-nan
- Department of Ophthalmology, The Fourth Affiliated Hospital, School of Medicine, Shihezi University, China
| | - Wu Ze-yong
- Department of Ophthalmology, The Fourth Affiliated Hospital, School of Medicine, Shihezi University, China
| | - Li Juan
- Department of Ophthalmology, The Fourth Affiliated Hospital, School of Medicine, Shihezi University, China
| | - Xie Tao
- Department of Ophthalmology, The Fourth Affiliated Hospital, School of Medicine, Shihezi University, China
| | - Yuan Yi-qun
- Department of Pathology, The Fourth Affiliated Hospital, School of Medicine, Shihezi University, China
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Fan Y, Jianying Z, Yuanyuan Z, Yan Y, Nong Y, Juan L, Jialei W, Jun Z, Zhehai W, Jun C, Zhu T, Li H, Li Z. EP08.02-052 Safety and Efficacy of Dabrafenib Plus Trametinib in Chinese Patients With BRAF V600E- Mutation Positive Metastatic NSCLC. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hongwei L, Juan L, Xiaoying X, Zhijun F. MicroRNA-106b-5p (miR-106b-5p) suppresses the proliferation and metastasis of cervical cancer cells via down-regulating fibroblast growth factor 4 (FGF4) expression. Cytotechnology 2022; 74:469-478. [PMID: 36110154 PMCID: PMC9374859 DOI: 10.1007/s10616-022-00536-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 04/29/2022] [Indexed: 12/24/2022] Open
Abstract
This study aims to investigate the function and mechanism of microRNA-106b-5p (miR-106b-5p) in cervical cancer (CC). Quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was performed to determine miR-106b-5p expression in CC tissues and normal gastric tissues. Cell counting kit-8 (CCK-8) and colony formation assays were used to analyze the regulatory effects of miR-106b-5p on CC cells' proliferative ability. Wound healing and Transwell assays were conducted to detect the effects of miR-106b-5p on cell migration and invasion. Besides, TargetScan was used to predict the potential target genes of miR-106b-5p. The interaction between miR-106b-5p and fibroblast growth factor 4 (FGF4) was proved by qRT-PCR, Western blot, and dual-luciferase reporter gene assay. MiR-106b-5p expression was down-regulated in CC tissues compared to non-tumorous tissues. The expression of miR-106b-5p was associated with the lymphatic node metastasis, FIGO stage and differentiation of CC. Functional assays revealed that miR-106b-5p overexpression suppressed CC cell proliferation, migration and invasion while miR-106b-5p inhibitor had the opposite effects. In addition, FGF4 was identified as a target gene of miR-106b-5p, and FGF could be negatively regulated by miR-106b-5p. MiR-106b-5p may serve as a tumor suppressor in CC, which can inhibit CC growth and metastasis by down-regulating FGF4 expression.
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Juan L, Jia F, Han K, Sun B, Cao L, Li Y, Zhang S. Understanding the influence of Bi/Sb substitution on carrier concentration in Mg3Sb2-based materials: Decreasing bandgap enhances the degree of impurity ionization. Phys Chem Chem Phys 2022; 24:27812-27818. [DOI: 10.1039/d2cp04314a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Experimental results show an intriguing phenomenon that although Bi and Sb have the same number of valence electrons, Bi/Sb substitution increases the electron concentration of n-type Mg3Sb2-based materials. Using a combination...
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Yirui L, Yin W, Juan L, Yanpei C. The clinical effect of early enteral nutrition in liver-transplanted patients: a systematic review and meta-analysis. Clin Res Hepatol Gastroenterol 2021; 45:101594. [PMID: 33887541 DOI: 10.1016/j.clinre.2020.101594] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 11/21/2020] [Accepted: 11/23/2020] [Indexed: 02/04/2023]
Abstract
BACKGROUND Appropriate nutritional support is critical for patients undergoing liver transplantation (LT). Early enteral nutrition (EEN) has been considered effective in critically ill patients. However, the clinical effect of EEN on liver-transplanted patients is unclear. AIM To evaluate the clinical effect of early enteral nutrition in patients receiving a liver transplant. METHODS A systematic search was performed on the Cochrane Library, PubMed, CINAHL, EMBASE, Web of Science, WanFang database, Chinese Biomedical Literature Database and China National Knowledge Infrastructure to collect relevant studies up to January, 2020. The results of these studies were pooled to calculate relative risk and mean differences with 95% confidence intervals for dichotomous data and continuous data. All statistical analysis was carried out by Review Manager 5.3. RESULTS 9 RCTs and 10 cohort studies with 1300 patients were included in this meta-analysis. Compared with TPN, EEN reduced postoperative infection rates, ICU hours, length of hospitalization, and the duration of bowel ventilation as well as strengthening the nutritional status and liver function of LT patients. There is no difference in mortality rates, blood glucose levels or gastrointestinal complications. Compared to TPN, the combined EN + PN method more effectively prevented infection. CONCLUSION For patients undergoing liver transplantation, early enteral nutrition with or without combination may considered as a better nutritional therapy than total parenteral nutrition.
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Affiliation(s)
- Li Yirui
- School of Nursing, Fudan University, Shanghai 200032, China
| | - Wei Yin
- Nursing Department, Huashan Hospital Affiliated to Fudan University, No.12 Urumqi Middle Road, Jing'an District, Shanghai 200040, China
| | - Li Juan
- Nursing Department, Huashan Hospital Affiliated to Fudan University, No.12 Urumqi Middle Road, Jing'an District, Shanghai 200040, China.
| | - Cao Yanpei
- Nursing Department, Huashan Hospital Affiliated to Fudan University, No.12 Urumqi Middle Road, Jing'an District, Shanghai 200040, China.
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Juan L, Diandian W, Jianfeng W, Ning L, Yuchen F, Na L, Sijie Z, Kun L, Fengyuan S. Efficient Anticancer Effect on Choroidal Melanoma Cells Induced by Tanshinone IIA Photosensitization. Photochem Photobiol 2021; 97:841-850. [PMID: 33580504 DOI: 10.1111/php.13399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 02/09/2021] [Indexed: 01/24/2023]
Abstract
Tanshinone IIA (TanIIA) has multiple biological functions and already been clinically used to treat many cardiovascular diseases. TanIIA is a photoactive molecule and can be excited by light to generate 3 TanIIA*. Generation of 3 TanIIA* by TanIIA photosensitization indicates that TanIIA may serve as a photosensitizer to bring photodynamic damage to organisms. Therefore, human choroidal melanoma MUM-2B cell was chosen as a superficial tumor model and the photodynamic effect of TanIIA on tumor cells was evaluated in this study. The results showed that TanIIA photosensitization could generate singlet oxygen in noncellular system. MTT, clone formation and wound-healing assays showed that the survival and migration of MUM-2B cells could be efficiently inhibited by TanIIA photosensitization. And then, laser confocal microscope and flow cytometry were used to try to elucidate related mechanism. It was found that TanIIA could pass through cellular membrane and preferably accumulate in nucleus. TanIIA photosensitization could efficiently induce cell apoptosis and necrosis, increase intracellular ROS levels, decrease mitochondria membrane potential, and lead to cell cycle arrest in G2/M phase. Our findings indicate that TanIIA photosensitization can exert remarkable toxicity on choroidal melanoma cells.
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Affiliation(s)
- Li Juan
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin International Joint Research and Development Centre of Ophthalmology and Vision Science, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China.,Department of Ophthalmology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Wei Diandian
- Institute of Biomedical and Health Science, School of Life and Health Science, Anhui Science and Technology University, Fengyang, Anhui, China
| | - Wang Jianfeng
- Department of Ophthalmology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Li Ning
- Department of Ophthalmology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Fan Yuchen
- Department of Ophthalmology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Li Na
- Department of Ophthalmology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Zhao Sijie
- Department of Ophthalmology, First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui, China
| | - Li Kun
- Institute of Biomedical and Health Science, School of Life and Health Science, Anhui Science and Technology University, Fengyang, Anhui, China
| | - Sun Fengyuan
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin International Joint Research and Development Centre of Ophthalmology and Vision Science, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
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Xiaoping Q, Juan L, Fatimah R, Chen J. Activity Efficiency Model in Business Process Under Conflict Information and Its Application. INT J COMPUT INT SYS 2020. [DOI: 10.2991/ijcis.d.201215.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Chenxi Y, Juan L, Jian W, Zhen G, Huanyuan W, Chendi S, Dongwen H, Ling L. Dip-coated rapeseed meal composite as a green carrier for light-induced controlled release of pesticide. NEW J CHEM 2020. [DOI: 10.1039/d0nj02771e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
4-Aminoazobenzene moieties act as light-driven “stirrers” to stimulate the release of pesticide.
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Affiliation(s)
- Yang Chenxi
- ShaanXi Provincial Land Engineering Construction Group Co., Ltd
- Xi'an 710075
- China
- Institute of Land Engineering and Technology
- Shaanxi Provincial Land Engineering Construction Group Co., Ltd
| | - Li Juan
- ShaanXi Provincial Land Engineering Construction Group Co., Ltd
- Xi'an 710075
- China
- Institute of Land Engineering and Technology
- Shaanxi Provincial Land Engineering Construction Group Co., Ltd
| | - Wang Jian
- ShaanXi Provincial Land Engineering Construction Group Co., Ltd
- Xi'an 710075
- China
- Institute of Land Engineering and Technology
- Shaanxi Provincial Land Engineering Construction Group Co., Ltd
| | - Guo Zhen
- ShaanXi Provincial Land Engineering Construction Group Co., Ltd
- Xi'an 710075
- China
- Institute of Land Engineering and Technology
- Shaanxi Provincial Land Engineering Construction Group Co., Ltd
| | - Wang Huanyuan
- ShaanXi Provincial Land Engineering Construction Group Co., Ltd
- Xi'an 710075
- China
- Institute of Land Engineering and Technology
- Shaanxi Provincial Land Engineering Construction Group Co., Ltd
| | - Shi Chendi
- ShaanXi Provincial Land Engineering Construction Group Co., Ltd
- Xi'an 710075
- China
- Institute of Land Engineering and Technology
- Shaanxi Provincial Land Engineering Construction Group Co., Ltd
| | - Hua Dongwen
- Shaanxi Key Laboratory of Land Consolidation
- Xi'an 710021
- China
| | - Li Ling
- College of Land Engineering
- Chang'an University
- Xi'an 710021
- China
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Luo Y, Juan L, Wang Z, Fang M. The role of platelets in the process of lung cancer A549 cell growth and its related mechanism. Glob J Transfus Med 2019. [DOI: 10.4103/gjtm.gjtm_62_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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17
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Fang Y, Chen Z, Juan L, Feng Z, Cao J, Zhou B, Huang Y, Cen J, Lu J, Liang Y, Wei J, Luo J, Chen W. Robot-Assisted Radical Prostatectomy in a Post-Kidney Transplant Patient: An Initial Case Report in China. Transplant Proc 2018; 50:3978-3983. [PMID: 30577300 DOI: 10.1016/j.transproceed.2018.09.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 08/23/2018] [Accepted: 09/05/2018] [Indexed: 10/28/2022]
Abstract
OBJECTIVE Our aim was to evaluate the general applicability, feasibility, and safety of robot-assisted radical prostatectomy (RARP) in Chinese renal allograft patients for prostate cancer removal. PATIENTS AND METHODS A 62-year-old patient diagnosed as having biopsy-proven localized prostate cancer in March 2016 who had undergone renal transplant 12 years ago was studied. The preoperative prostate-specific antigen value was determined to be 11.82 ng/mL and the Gleason score was determined to be 3 + 3. The RARP was carried out using a transperitoneal and posterior approach with 5 ports in May 2016. The most important technique was ensuring that the transplanted kidney and ureter remained untouched during the surgery. Only the right obturator lymph nodes were dissected because the renal allograft was overlying the iliac vessels. RESULTS The RARP was successfully concluded following 230 minutes with an estimated blood loss of 200 mL. There were no postoperative complications. Final pathology was T2cN0M0, Gleason 3 + 3. Following catheter removal, the patient was completely continent and was discharged with no change in serum creatinine or glomerular filtration rate levels. During a 21-month follow-up, unobstructed urination, no incontinence, no biochemical recurrence, and normal kidney function were observed. CONCLUSION RARP in Chinese renal allograft patients is a feasible method that can be accomplished with no injuries to the transplanted kidney or ureter and is achieved with favorable oncological and functional outcomes. In addition, post-kidney transplant male patients are recommended to have routine prostate-specific antigen screening for the early detection of prostate cancer.
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Affiliation(s)
- Y Fang
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Z Chen
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - L Juan
- Department of Pediatrics, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Z Feng
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - J Cao
- Department of Urology, Jiangmen Hospital, Sun Yat-Sen University, Jiangmen, China
| | - B Zhou
- Department of Urology, The Affiliated Hospital of Hainan Medical College, Haikou, Hainan, China
| | - Y Huang
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - J Cen
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - J Lu
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Y Liang
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - J Wei
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - J Luo
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - W Chen
- Department of Urology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
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Donghui T, Shuang B, Xulong L, Meng Y, Yujing G, Yujie H, Juan L, Dongsheng Y. Improvement of microvascular endothelial dysfunction induced by exercise and diet is associated with microRNA-126 in obese adolescents. Microvasc Res 2018; 123:86-91. [PMID: 30472037 DOI: 10.1016/j.mvr.2018.10.009] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 09/24/2018] [Accepted: 10/25/2018] [Indexed: 10/27/2022]
Abstract
OBJECTIVE Microvascular endothelial dysfunction, which is at the early stage of atherosclerosis, precedes macrovascular endothelial dysfunction. The study is aimed to investigate the mechanism underlying the improvement of microvascular endothelial dysfunction by exercise and diet in obese adolescents. METHODS A quasi-randomized study was carried out with 2 cohorts: the experimental group (57 obese male adolescents; age: 15.38 ± 2.82 years, BMI: 33.21 ± 4.23 kg/m2) completed a 6-week exercise program with dietary intervention, and control group (10 normal weight adolescents; age: 15.38 ± 2.82 years, BMI: 23.21 ± 4.23 kg/m2) maintained sedentary. Clinical characteristics, circulating NO, ET-1 and microRNA-126 (miR-126) levels were measured before and after 6 weeks. The Reactive Hyperemia Index (RHI) was measured using EndoPAT-2000 system. RESULTS After 6-weeks intervention, obese adolescents' body circumferences and glucolipid metabolism are significantly improved. RHI (p < 0.01) and serum levels of NO/ET-1 (p < 0.01) are significantly increased, while microRNA-126 significantly decreased (p < 0.01). ΔMiR-126 were positive correlated with ΔBMI (r = 0.60, p < 0.01), ΔRHI (r = 0.69, p < 0.05), and ΔNO/ET-1 (r = -0.68, p < 0.05). CONCLUSIONS Combination of exercise and diet control can effectively improve glycolipid metabolism of obese adolescents, and thus their microvascular endothelial function, which might be related to changes in serum miRNA-126.
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Affiliation(s)
- Tang Donghui
- School of Physical Education and Sports, Beijing Normal University, Beijing, China.
| | - Bai Shuang
- School of Physical Education and Sports, Beijing Normal University, Beijing, China
| | - Li Xulong
- School of Physical Education and Sports, Beijing Normal University, Beijing, China
| | - Yao Meng
- School of Physical Education and Sports, Beijing Normal University, Beijing, China
| | - Gong Yujing
- School of Physical Education and Sports, Beijing Normal University, Beijing, China
| | - Hou Yujie
- School of Physical Education and Sports, Beijing Normal University, Beijing, China
| | - Li Juan
- College of Physical Education, Hebei Normal University, Shijiazhuang, China
| | - Yang Dongsheng
- Department of Physical Education, Zhejiang University of Technology, Hangzhou, China
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Junxun L, Juan L, Xiuzhen T, Juan O, Bohuang Z, Junru L. Comparing Five Diagnostic Criteria for Multiple Myeloma: A Retrospective Study of 227 Cases. Tumori 2018; 100:207-13. [DOI: 10.1177/030089161410000215] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Aims and Background Several diagnostic criteria for multiple myeloma are used in clinical practice, and it can be difficult to reach a diagnosis when a patient's clinical presentation is consistent with one criterion but not with another. However, no study to date has compared the superiority of the different diagnostic criteria. The aim of this research is to compare the efficacy of five diagnostic criteria for multiple myeloma and to find the reasons for misdiagnosis of atypical multiple myeloma cases. Methods and Study Design A total of 227 multiple myeloma cases were retrospectively studied. The clinical data (including plasma cell morphology, flow cytometry, immunofixation electrophoresis, imaging information and clinical manifestations) were scrutinized and the reasons underlying the misdiagnoses analyzed. Results The Traditional Domestic criteria had the highest misdiagnosis rate due to the high fixed bone marrow plasma cell percentage and serum M-protein thresholds. The WHO criteria and the International Myeloma Working Group 2009 criteria exhibited relatively low misdiagnosis rates due to their lower bone marrow plasma cell percentage thresholds, flexible criteria and detailed end-organ damage descriptions. The 2003 International Myeloma Working Group criteria and the 2011 Chinese Myeloma Working Group criteria exhibited perfect performance, as each focused on monoclonal plasma cell proliferation and not on fixed bone marrow plasma cell percentage and serum M-protein thresholds. Conclusions The 2003 International Myeloma Working Group criteria and the 2011 Chinese Myeloma Working Group criteria have advantages in diagnosing early or atypical multiple myeloma cases. To avoid misdiagnosing some atypical cases of multiple myeloma, attention should be paid to evidence of monoclonal plasma cell proliferation, and flow cytometry may be a useful tool for discovering monoclonal plasma cell proliferation. Advanced imaging techniques should be used to confirm any suspected or atypical findings on metastatic bone survey.
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Affiliation(s)
- Li Junxun
- Department of Laboratory Science, First Affiliated Hospital of Sun Yat-sen University, Guangzhou
| | - Li Juan
- Department of Hematology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou
| | - Tong Xiuzhen
- Department of Laboratory Science, First Affiliated Hospital of Sun Yat-sen University, Guangzhou
| | - Ouyang Juan
- Department of Hematology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou
| | - Zeng Bohuang
- Department of Laboratory Science, Guangzhou Traditional Medicine Hospital, Guangzhou, China
| | - Liu Junru
- Department of Laboratory Science, First Affiliated Hospital of Sun Yat-sen University, Guangzhou
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Lin J, Shao J, Juan L, Yu W, Song X, Liu P, Weng W, Xu J, Mehl C. Enhancing bone regeneration by combining mesenchymal stem cell sheets with β-TCP/COL-I scaffolds. J Biomed Mater Res B Appl Biomater 2017; 106:2037-2045. [PMID: 29098765 DOI: 10.1002/jbm.b.34003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Revised: 08/21/2017] [Accepted: 08/28/2017] [Indexed: 01/08/2023]
Affiliation(s)
- Jun Lin
- Department of Stomatology; First Affiliated Hospital of Zhejiang University; 310003 Hangzhou China
| | - Jiaqi Shao
- Department of Stomatology; First Affiliated Hospital of Zhejiang University; 310003 Hangzhou China
| | - Li Juan
- Department of Stomatology; First Affiliated Hospital of Zhejiang University; 310003 Hangzhou China
| | - Wenke Yu
- Department of Stomatology; First Affiliated Hospital of Zhejiang University; 310003 Hangzhou China
| | - Xiaojia Song
- Department of Stomatology; First Affiliated Hospital of Zhejiang University; 310003 Hangzhou China
| | - Pengruofeng Liu
- Department of Stomatology; First Affiliated Hospital of Zhejiang University; 310003 Hangzhou China
| | - Wenjian Weng
- School of Materials Science and Engineering; Zhejiang University; 310027 Hangzhou China
| | - Jinghong Xu
- Department of Plastic Surgery; First Affiliated Hospital of Zhejiang University; 310003 Hangzhou China
| | - Christian Mehl
- Department of Prosthodontics, Propaedeutics and Dental Materials; Christian-Albrechts University at Kiel; 2415 Kiel Germany
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Zhu S, Shuguang L, Youmei L, Wenbin S, Juan L, Zhukun L, Jingwei S, Teng L. PO-0685: The value of postoperative adjuvant therapy for pT2-3 esophageal cancer treated by radical resection. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)31122-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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22
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Fulin J, Juan L. Letters From Our Readers. Angle Orthod 2016; 86:1061. [PMID: 27792426 DOI: 10.2319/0003-3219-86.6.1061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Affiliation(s)
- Jiang Fulin
- Department of Orthodontics, State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China,
| | - Li Juan
- Department of Orthodontics, State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China,
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Li H, Juan L, Xia L, Wang Y, Bao Y, Sun G. Thioridazine Sensitizes Esophageal Carcinoma Cell Lines to Radiotherapy-Induced Apoptosis In Vitro and In Vivo. Med Sci Monit 2016; 22:2624-34. [PMID: 27453171 PMCID: PMC4970441 DOI: 10.12659/msm.899950] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background Radiotherapy is one of the primary treatments for esophageal squamous cell carcinoma (ESCC). Identification of novel radio-sensitizing agents will improve the therapeutic outcome of radiotherapy. This study aimed to determine the radio-sensitizing effect of the antipsychotic agent thioridazine in ESCC and explored the underlying mechanisms. Material/Methods ECA-109 and TE-1 ESCC cells were treated with thioridazine and radiotherapy alone and in combination. Cell survival was measured by MTT assay. Cell cycle and apoptosis were monitored by flow cytometry. Western blot analysis was used to analyze the expression of phospho-PI3K, phosphor-AKT, phospho-mTOR, Caspase-3, Caspase-9, Bax, Bcl-2, Bal-xl, Bak, and p53. The xenograft mouse model was used to study the in vivo anticancer effect of thioridazine and irradiation. Results Combined treatment with thioridazine and irradiation significantly reduced viability of ESCC cells compared with thioridazine or irradiation treatment alone. Thioridazine and irradiation treatment induced G0/G1 phases cell cycle arrest through down-regulation of CDK4 and cyclinD1. In addition, thioridazine and irradiation treatment induced apoptosis through up-regulation of cleaved capase-3 and 9, as well as an increase in the expression of Bax and Bak and a decrease in the expression of Bcl-2 and Bcl-xl. Furthermore, thioridazine and irradiation treatment inhibited the PI3K-AKT-mTOR pathway and up-regulated the expression of p53. In xenograft mice, thioridazine and irradiation reduced ESCC tumor growth. Conclusions Thioridazine sensitizes ESCC cells to radiotherapy. Thioridazine may play a role in ESCC radiation therapy as a promising radiosensitizer.
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Affiliation(s)
- Hongxia Li
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Li Juan
- Department of Oncology, The Third Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Leiming Xia
- Department of Oncology, The Third Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Yi Wang
- Department of Oncology, The Third Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Yangyi Bao
- Department of Oncology, The Third Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Guoping Sun
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
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Forster M, Sessa C, Von Moos R, Brown N, Metaxas Y, Griguolo G, Lardelli P, Coronado C, Juan L, Fernandez-Teruel C, Soto-Matos A, Stathis A. 316 Phase I study of lurbinectedin (PM01183) in combination with cisplatin (C) with or without aprepitant (Ap) in patients (pts) with advanced solid tumors. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30181-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Yan Z, Jin S, Wei Z, Huilian H, Zhanhai Y, Yue T, Juan L, Jing L, Libo Y, Xu L. Discoidin domain receptor 2 facilitates prostate cancer bone metastasis via regulating parathyroid hormone-related protein. Biochim Biophys Acta Mol Basis Dis 2014; 1842:1350-63. [DOI: 10.1016/j.bbadis.2014.04.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 03/26/2014] [Accepted: 04/21/2014] [Indexed: 12/26/2022]
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Junxun L, Juan L, Xiuzhen T, Juan O, Bohuang Z, Junru L. Comparing five diagnostic criteria for multiple myeloma: a retrospective study of 227 cases. Tumori 2014. [PMID: 24852867 DOI: 10.1700/1491.16417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
AIMS AND BACKGROUND Several diagnostic criteria for multiple myeloma are used in clinical practice, and it can be difficult to reach a diagnosis when a patient's clinical presentation is consistent with one criterion but not with another. However, no study to date has compared the superiority of the different diagnostic criteria. The aim of this research is to compare the efficacy of five diagnostic criteria for multiple myeloma and to find the reasons for misdiagnosis of atypical multiple myeloma cases. METHODS AND STUDY DESIGN A total of 227 multiple myeloma cases were retrospectively studied. The clinical data (including plasma cell morphology, flow cytometry, immunofixation electrophoresis, imaging information and clinical manifestations) were scrutinized and the reasons underlying the misdiagnoses analyzed. RESULTS The Traditional Domestic criteria had the highest misdiagnosis rate due to the high fixed bone marrow plasma cell percentage and serum M-protein thresholds. The WHO criteria and the International Myeloma Working Group 2009 criteria exhibited relatively low misdiagnosis rates due to their lower bone marrow plasma cell percentage thresholds, flexible criteria and detailed end-organ damage descriptions. The 2003 International Myeloma Working Group criteria and the 2011 Chinese Myeloma Working Group criteria exhibited perfect performance, as each focused on monoclonal plasma cell proliferation and not on fixed bone marrow plasma cell percentage and serum M-protein thresholds. CONCLUSIONS The 2003 International Myeloma Working Group criteria and the 2011 Chinese Myeloma Working Group criteria have advantages in diagnosing early or atypical multiple myeloma cases. To avoid misdiagnosing some atypical cases of multiple myeloma, attention should be paid to evidence of monoclonal plasma cell proliferation, and flow cytometry may be a useful tool for discovering monoclonal plasma cell proliferation. Advanced imaging techniques should be used to confirm any suspected or atypical findings on metastatic bone survey.
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Pengjun Z, Xinyu W, Feng G, Xinxin D, Yulan L, Juan L, Xingwang J, Zhennan D, Yaping T. Multiplexed cytokine profiling of serum for detection of colorectal cancer. Future Oncol 2014; 9:1017-27. [PMID: 23837764 DOI: 10.2217/fon.13.71] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
AIM To evaluate the concentrations of eight cytokines in order to identify potential biomarkers for assisting in the detection of colorectal cancer. MATERIALS & METHODS The concentrations of IFN-γ, IL-10, IL-6, IL-8, TNF-α, MMP-2, MMP-7 and MMP-9 were detected in the sera of 69 healthy controls, 93 colorectal adenoma patients and 149 colorectal cancer (CRC) patients. RESULTS Multivariate logistic regression analyses, which included CEA, CA199, IL-8, TNF-α and MMP-7, were used to evaluate the diagnostic value for differentiating between colorectal adenoma and CRC. The area under the curve was 0.945 (95% CI: 0.909-0.981). The sensitivity and specificity were 85.86 and 96.78%, respectively. Compared with the conventional biomarkers CEA and CA199, multivariate logistic regression showed significant improvement. CONCLUSION Our data demonstrated that testing using a panel of three serum cytokines, CEA and CA199 may have strong potential to assist in the detection of CRC.
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Affiliation(s)
- Zhang Pengjun
- Department of Clinical Biochemistry, State Key Laboratory of Kidney Disease, Chinese PLA General Hospital, Fuxin Road #28, Beijing, China
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Lei-xing X, Jing-jing G, Jing-xue N, Juan W, Juan L, Chang-zai L, Xiao-xi W, Da-yi Y, Jia-jin L, Xiong-wei Z, Liu-quan C, Yong W, Dan-qing L, Hong-bin L. Combined application of 18F-fluorodeoxyglucose positron emission tomography/computed tomography and magnetic resonance imaging in early diagnosis of vulnerable carotid atherosclerotic plaques. J Int Med Res 2013; 42:213-23. [PMID: 24366494 DOI: 10.1177/0300060513502887] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Objective To assess the correlations between atherosclerotic plaque characteristics and inflammatory activity by combined use of 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) and magnetic resonance imaging (MRI). Methods Patients underwent 18F-FDG PET/CT and MRI. Target/background ratios (TBR) of axial sections were determined from mean standard uptake values (SUV). Correlations between TBR and mean vessel wall thickness, total vessel area, lumen area, vessel wall area and normalized wall index were calculated. Plaque types were defined as calcified, collagen, lipid or haemorrhage. Plaques were also classified as thick, thin, or ruptured fibrous cap. Results The study included 31 patients (1178 plaque slices). There was a significant decrease in TBR values across the fibrous cap groups, such that ruptured > thin > thick. Lipid and haemorrhage plaques had significantly higher TBR than calcification and collagen plaques. There were weak positive correlations between TBR and mean vessel wall thickness, vessel wall area and normalized wall index. Conclusions Thin or ruptured plaques, lipid-rich plaques and haemorrhagic plaques possess high inflammatory activity. The combination of 18F-FDG PET/CT and MRI could be useful for qualitative and quantitative diagnosis of carotid atherosclerotic plaques.
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Affiliation(s)
- Xie Lei-xing
- Department of Cardiology, Chinese People’s Liberation Army General Hospital, Beijing, China
- Department of Cardiology, Hainan Branch of Chinese PLA General Hospital, Sanya, China
| | - Gai Jing-jing
- Department of Cardiology, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Niu Jing-xue
- Department of Neurorehabilitation, China Rehabilitation Research Centre, Beijing, China
| | - Wang Juan
- Department of Cardiology, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Li Juan
- Department of Cardiology, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Liang Chang-zai
- Department of Cardiology, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Wang Xiao-xi
- Department of Cardiology, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Yin Da-yi
- Department of Nuclear Medicine, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Liu Jia-jin
- Department of Nuclear Medicine, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Zhang Xiong-wei
- Department of Nuclear Medicine, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Cheng Liu-quan
- Department of Radiology, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Wang Yong
- Department of Radiology, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Liu Dan-qing
- Department of Radiology, Chinese People’s Liberation Army General Hospital, Beijing, China
| | - Liu Hong-bin
- Department of Cardiology, Chinese People’s Liberation Army General Hospital, Beijing, China
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Juan L, Ya-fei L, Wei-tao Y, Lin-lin G, Chen L, Xiao-a Z, Shi-cheng Q. SYNTHESIS,CURE AND PROPERTIES OF SILOXY-TERMINATED LIQUID FLUOROELASTOMERS. ACTA POLYM SIN 2013. [DOI: 10.3724/sp.j.1105.2013.13085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Juan L, Tong HL, Zhang PJ, Wen XY, Gao YH, Nan JZ, Tian YP. Clinical utility of serum tumor markers and cytokines in cervical cancer and neoplasia. Clin Chem Lab Med 2013; 51:e183-6. [PMID: 23492567 DOI: 10.1515/cclm-2012-0658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2012] [Accepted: 02/04/2013] [Indexed: 11/15/2022]
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Bin H, Ruifang W, Ruizhen L, Yiheng L, Zhihong L, Juan L, Chun W, Yanqiu Z, Leiming W. Detention of HPV L1 Capsid Protein and hTERC Gene in Screening of Cervical Cancer. Iran J Basic Med Sci 2013; 16:797-802. [PMID: 23997907 PMCID: PMC3758036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Accepted: 10/10/2012] [Indexed: 10/24/2022]
Abstract
OBJECTIVE(S) To investigate the expression of human papilloma virus (HPV) L1 capsid protein, and human telomerase RNA component (hTERC) in cervical cancer and the role of detection of both genes in screening of cervical cancer. MATERIALS AND METHODS A total of 309 patients were recruited and cervical exfoliated cells were collected. Immunocytochemistry was employed to detect HPV L1 capsid protein, and fluorescent in situ hybridization (FISH) was performed to detect the hTERC. RESULTS The expression of HPV L1 capsid protein reduced with the increase of the histological grade of cervical cells and was negatively related to the grade of cervical lesions. However, the expression of hTERC increased with the increase of the histological grade and positively associated with the grade of cervical lesions. The proportion of patients with L1(-)/hTERC(+) was higher in patients with histological grade of CIN2 or higher than that in those with histological grade of CIN1. The L1(+)/hTERC(-) and L1(-)/hTERC(-) were negatively related to the grade of cervical lesions. L1(-)/hTERC(+) was positively associated with the grade of cervical lesions. The L1/hTERC ratio increased. The negative predictive value of both HPV L1 and hTERC was higher than that of HPV L1 or hTERC, but there was no marked difference in the screening efficacy of cervical cancer among HPV L1, hTERC and HPV L1+hTERC. CONCLUSION HPV L1 capsid protein and hTERC gene may serve as markers for the early diagnosis and prediction of cervical lesions. The increase in L1/hTERC ratio reflects the progression of cervical lesions to a certain extent.
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Affiliation(s)
- Huang Bin
- Corresponding author: Wu Ruifang, Department of Gynecology and Obstetrics, Shenzhen Hospital of Beijing University, Shenzhen 518036, China;
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Gao H, Jia Y, Guo S, Lv G, Wang T, Juan L. Exogenous calcium affects nitrogen metabolism in root-zone hypoxia-stressed muskmelon roots and enhances short-term hypoxia tolerance. J Plant Physiol 2011; 168:1217-25. [PMID: 21458885 DOI: 10.1016/j.jplph.2011.01.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2010] [Revised: 01/13/2011] [Accepted: 01/17/2011] [Indexed: 05/23/2023]
Abstract
We investigated the effects of short-term root-zone hypoxic stress and exogenous calcium application or deficiency in an anoxic nutrient solution on nitrogen metabolism in the roots of the muskmelon cultivar Xiyu No. 1. Seedlings grown in the nutrient solution under hypoxic stress for 6d displayed significantly reduced plant growth and soluble protein concentrations. However, NO₃⁻ uptake rate and activities of nitrate reductase and glutamate synthase were significantly increased. We also found higher amounts of nitrate, ammonium, amino acids, heat-stable proteins, polyamines, H₂O₂, as well as higher polyamine oxidase activity in the roots. In comparison to the reactions seen under hypoxic stress, exogenous calcium application led to a marked increase in plant weights, photosynthesis parameters, NO₃⁻ uptake rate and contents of nitrate, ammonium, amino acids (e.g., glutamic acid, proline, glycine, cystine, γ-aminobutyric acid), soluble and heat-stable proteins, free spermine, and insoluble bound polyamines. Meanwhile, exogenous calcium application resulted in significantly increased activities for nitrate reductase, glutamine synthetase, and glutamate synthase but decreased activities for diamine and polyamine oxidase, as well as lower H₂O₂ content in roots during exposure to hypoxia. However, calcium deficiency in the nutrient solution decreased plant weight, photosynthesis parameters, NO₃⁻ reduction, amino acids (e.g., alanine, aspartic acid, glutamic acid, γ-aminobutyric acid), protein, all polyamines except for free putrescine, and the activities of glutamate synthase and glutamine synthetase. Additionally, there was an increase in the NO₃⁻ uptake rate, polyamine oxidase activity and H₂O₂ contents under hypoxia-Ca. Simultaneously, exogenous calcium had little effect on nitrate absorption and transformation, photosynthetic parameters, and plant growth under normoxic conditions. These results suggest that calcium confers short-term hypoxia tolerance in muskmelon, most likely by promoting nitrate uptake and accelerating its transformation into amino acids, heat-stable proteins or polyamines, as well as by decreasing polyamine degradation in muskmelon seedlings.
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Affiliation(s)
- Hongbo Gao
- College of Horticulture, Nanjing Agricultural University, Weigang 1, Nanjing 210095, Jiangsu Province, China
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Haitao G, Ronghuai Z, Yuemin W, Hui B, Juan L, Jianming P. e0152 Endogenous opioid peptide mediates the cardioprotection induced by ischaemic postconditioning. Heart 2010. [DOI: 10.1136/hrt.2010.208967.152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Liu X, Juan L, Zhan L, Tang L, Wang Y, Qiao W, Liang X, Ling L. Effect of conductive filler on the impedance behaviors of activated carbon based electric double layer capacitors. J Electroanal Chem (Lausanne) 2010. [DOI: 10.1016/j.jelechem.2010.02.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Jue C, Juan L, Wantai Y. Curing behavior and thermal properties of trifunctional epoxy resin cured by 4,4′-diaminodiphenylmethane. J Appl Polym Sci 2009. [DOI: 10.1002/app.30630] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Levicoff EA, Kim JS, Sobajima S, Wallach CJ, Larson JW, Robbins PD, Xiao X, Juan L, Vadala G, Gilbertson LG, Kang JD. Safety assessment of intradiscal gene therapy II: effect of dosing and vector choice. Spine (Phila Pa 1976) 2008; 33:1509-16; discussion 1517. [PMID: 18520636 PMCID: PMC3510668 DOI: 10.1097/brs.0b013e318178866c] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Clinical, biochemical, and histologic analysis was performed after in vivo delivery of cDNA encoding various anabolic cytokines and marker genes to the lumbar epidural space of New Zealand white rabbits, using both adenoviral and adeno-associated viral vectors. OBJECTIVE To mimic errant or misplaced doses of gene therapy to better ascertain the potential risks associated with alternative vectors and transgene products with regard to their application to problems of the intervertebral disc. SUMMARY OF BACKGROUND DATA Work done with several anabolic cytokines including bone morphogenic proteins and transforming growth factors, has demonstrated the potential of gene therapy. Recently, data has been published demonstrating that improperly dosed or delivered adenoviral-mediated gene therapy within the subarachnoid space can result in significant morbidity in rabbits. There are currently no studies examining the effect of these errors within the epidural space or using an adeno-associated viral (AAV) vector. METHODS Using either adenoviral or AAV vectors, complementary DNA (cDNA) encoding anabolic cytokines bone morphogenic protein-2 (BMP-2) and transforming growth factor-beta 1 and marker proteins LacZ and green fluorescent protein were injected into the epidural space of 37 New Zealand white rabbits at the L5/6 level. Rabbits were then observed clinically for up to 6 weeks, after which the rabbits were sacrificed in order to perform a comprehensive biochemical and histologic analysis. RESULTS Following adenoviral-mediated delivery of anabolic cytokine cDNA, up to eighty percent of rabbits demonstrated significant clinical, biochemical, and histologic morbidity. Conversely, AAV-mediated delivery of any cDNA and adenoviral-mediated delivery of marker protein cDNA resulted in no clinical, histologic, or biochemical morbidity. CONCLUSION Properly dosed and directed gene therapy seems to be both safe and potentially efficacious. This study suggests that side effects of gene therapy may be due to a combination of dosing, transgene product, and vector choice, and that newer AAV vectors may reduce these side-effects and decrease the risk of this technology.
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Affiliation(s)
- Eric A Levicoff
- Department of Orthopaedic Surgery, Ferguson Laboratory for Orthopaedic Research, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
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Hernández R, Marín J, García-Muñoz E, Pineda A, Pons S, Muñoz E, Juan L. 34 Factores de riesgo de lesión renal en lactantes tras la primera ITU febril. Evaluación prospectiva de la estrategia del diagnóstico de imagen inicial y del seguimiento ambulatorio posterior. An Pediatr (Barc) 2007. [DOI: 10.1016/s1695-4033(07)70752-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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KuanXin H, Xiaogang Z, Juan L. Preparation and electrochemical capacitance of Me double hydroxides (Me=Co and Ni)/TiO2 nanotube composites electrode. Electrochim Acta 2006. [DOI: 10.1016/j.electacta.2005.06.020] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abstract
OBJECTIVE To investigate the potential role of peritoneal fluid (PF) from women with or without endometriosis in implantation in mice with use of the delayed implantation model. DESIGN A murine experimental model with markers of uterine receptivity and prospective comparison of the effects of human PF on implantation. SETTING Academic university and hospital program. INTERVENTION(S) PF collected from women with and without endometriosis was injected intraperitoneally into recently mated mice. MAIN OUTCOME MEASURE(S) Implantation sites were counted in treated and untreated animals, and the alphavbeta3 integrin was measured in the pregnant mouse uterus by immunohistochemistry with in situ hybridization. Leukemia inhibitory factor and the beta3 subunit of alphavbeta3 were measured by Northern blot during early pregnancy and after injections of PF. RESULT(S) Animals receiving PF from infertile women with endometriosis had a reduction in the number of implantation sites compared with animals that received PF from fertile women or from patients with recently treated endometriosis. In the mouse, expression of alphavbeta3 and leukemia inhibitory factor peaked at the time of implantation and was reduced by injections of human PF from infertile patients with endometriosis. CONCLUSION(S) Leukemia inhibitory factor and alphavbeta3 are coexpressed at the time of implantation in the mouse. PF from women with endometriosis has a detrimental effect on embryo implantation, perhaps by adversely affecting uterine receptivity.
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Ruesga E, Skromme D, Fortoul T, Antuna T, Cardoza H, Juan L, Magaña J, Jauregui R, Necoechea J, Palomo J, Estrada J. 3.P.189 Vitamin A effects on the endothelium and atheroma plaques in patients with ischemic heart disease. Atherosclerosis 1997. [DOI: 10.1016/s0021-9150(97)89263-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Las Heras G, Juan L. [Serum ferritin for screening in fertile-age women]. Med Clin (Barc) 1997; 108:77-8. [PMID: 9064427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Benítez H, Arreguín L, Velásquez L, Bernaldez R, Juan L, Farfán J, Díaz S, Gaona A, Martínez MC. [Electrolytic changes in children with acute lymphoblastic leukemia during remission induction]. Sangre (Barc) 1995; 40:213-7. [PMID: 7570274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The alterations of the water-electrolyte balance are among the commonest early complications of treatment in children with acute lymphoblastic leukaemia (ALL). A study was carried out in thirteen patients with ALL aged between 1.5 and 14 years. Four had high risk ALL and nine had standard risk ALL. All patients received intravenous epirubicin and vincristine, per os prednisone, allopurinol and bicarbonate, and intrathecal methotrexate and hydrocortisone. Venous blood was drawn before starting therapy and on days second and sixth of treatment in order to assay sodium, potassium, calcium, phosphate, magnesium, albumin, urea nitrogen, creatinine and uric acid concentrations. The following alterations were found: hyponatraemia in 4 cases, hypokalemia in 9, hypomagnesaemia in 9, hypocalcaemia in 11, hypophosphataemia in 9, hypouricemia in 3 and hyperuricaemia in 3 others. None of the patients developed acute renal insufficiency. These abnormalities could be due to the leukaemia itself or appear as a consequence of the remission induction treatment.
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Affiliation(s)
- H Benítez
- Departamento de Nefrología, Hospital Infantil de México Federico Gómez, México, D.F
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Chun-Wan L, Wen-Liang W, Juan L. EHMO Studies on the Participation of 3<em>d</em> Orbital of the Quad-bridging Sulfur Atom in the Bonding Formation of Cluster [M<sub>4</sub>S<sub>2</sub>]. ACTA PHYS-CHIM SIN 1994. [DOI: 10.3866/pku.whxb19940208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Belmin J, Michel JB, Curmi PA, Salzmann JL, Juan L, Tedgui A. Reduction of transmural 125I-albumin concentration in rat aortic media by chronic hypertension. Arterioscler Thromb 1991; 11:334-43. [PMID: 1998651 DOI: 10.1161/01.atv.11.2.334] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Relative 125I-albumin concentration was measured in vivo in the aortic media of sham-operated (n = 10) and hypertensive (two-kidney, one clip) rats, untreated (n = 8) or treated (n = 10) by an angiotensin converting enzyme inhibitor (CEI, Trandolapril). Blood pressure was acutely lowered to a normal level at the time of the experiment in hypertensive rats (n = 7) to separate the direct effect of increased pressure from the effect of pressure-induced structural changes. Relative tissue concentration profiles of labeled albumin across the media were obtained using a serial frozen-sectioning technique. In hypertensive rats, the mean medial albumin concentration decreased by 35% in the ascending arch and 32% in the descending arch (p less than 0.01). When blood pressure was acutely lowered in hypertensive animals, this value decreased further by 56% in the ascending arch, 48% in the descending arch (p less than 0.01), and 22% in the thoracic aorta (p less than 0.05) as compared with controls. The medial thickness in hypertensive rats was significantly increased (more in the ascending arch than in the rest of the aorta). Four-week CEI treatment reversed hypertension and medial thickening, but the mean medial albumin concentration remained significantly lower in the arch (by 36% in the ascending part and 40% in the descending part, p less than 0.01). The collagen content in the thoracic aorta was significantly increased in hypertensive rats (by 40%, p less than 0.01) and remained increased (by 29%, p less than 0.01) after CEI treatment. These results suggested that the hypertension-induced structural changes might reduce the medial distribution volume for albumin, whereas elevated blood pressure per se tended to enhance albumin concentration within the media. However, the net result of chronic hypertension was a reduction of the mean medial albumin concentration. The aortic arch appeared to be more affected than the rest of the aorta. Fiber content, more than medial thickness, might be responsible for the observed differences in albumin concentration. Lowering of blood pressure seemed to be insufficient to restore normal albumin concentration profiles and perhaps those of other macromolecules. This finding may be relevant in evaluating some of the complications associated with hypertension.
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Affiliation(s)
- J Belmin
- Institut National de la Santé et de la Recherche Médicale, Unité 141, Hôpital Lariboisière, Paris, France
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Curmi PA, Juan L, Merval R, Tedgui A. [Effects of arterial hyperpression on the transport and distribution of LDL and albumin in the arterial wall]. Arch Mal Coeur Vaiss 1990; 83:1329-33. [PMID: 2124476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
To investigate the effect of hyperpressure on the transport of LDL and albumin in the arterial wall, we measured in vitro the uptake of both 131I-LDL and 125I-albumin in intact rabbit thoracic aorta, held at in vivo length and pressurized to 70 or 160 mmHg. Arteries were incubated for 2 h at 70 mmHg, and for 5 min, 30 min, 1 h and 2 h at 160 mmHg. The transmural distribution of the relative concentrations of LDL (CLDL) and albumin (CAlb) across the wall was determined using a serial frozen sectioning technique. At 70 mmHg, the mean medial CLDL and CAlb values were 0.0018 +/- 0.0007 and 0.0039 +/- 0.0013, respectively. At 160 mmHg, CLDL and CAlb were markedly increased. The distribution of labeled albumin was almost uniform across the media and reached a steady state after 30 min, whereas labeled LDL accumulated in the first inner layers, a steady state being achieved after 1 h. The 1-hour values of CLDL in the first and second luminal sections (0.24 +/- 0.03 and 0.13 +/- 0.05, respectively) were much higher than those of CAlb, the CLDL/CAlb ratios being 4.12 +/- 0.94 and 2.34 +/- 0.42 (p less than 0.01), respectively. In the subsequent sections, the CLDL markedly decreased and became much lower than the CAlb, the CLDL/CAlb ratio averaging 0.2 in the two thirds outer media. To investigate whether LDL was trapped at high pressure in the inner layers, vessels were exposed to a tracer-free intraluminal solution for 30 min, following a 30-minute incubation with tracers.(ABSTRACT TRUNCATED AT 250 WORDS)
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Abstract
To investigate the effect of hyperpressure on the transport of low density lipoprotein (LDL) and albumin in the arterial wall, we measured in vitro the uptake of both iodine-131-labeled LDL and iodine-125-labeled albumin in intact rabbit thoracic aorta, held at in vivo length and pressurized to 70 or 160 mm Hg. Arteries were incubated for 2 hours (n = 8) at 70 mm Hg, and for 5 minutes (n = 4), 30 minutes (n = 4), 1 hour (n = 5), and 2 hours (n = 5) at 160 mm Hg. The transmural distribution of the relative concentrations of LDL (CLDL) and albumin (Calb) across the wall was determined by using a serial frozen sectioning technique. At 70 mm Hg, the mean medial CLDL and Calb values were 0.0018 +/- 0.0007 and 0.0039 +/- 0.0013, respectively. At 160 mm Hg, CLDL and Calb were markedly increased. The distribution of labeled albumin was almost uniform across the media and reached a steady state after 30 minutes, whereas labeled LDL accumulated in the first inner layers, a steady state being achieved after 1 hour. The 1-hour values of CLDL in the first and second luminal sections (0.24 +/- 0.03 and 0.13 +/- 0.05, respectively) were much higher than those of Calb, the CLDL/Calb ratios being 4.12 +/- 0.94 and 2.34 +/- 0.42 (p less than 0.01), respectively. In the subsequent sections, the CLDL decreased markedly and became much lower than the Calb, the CLDL/Calb ratio averaging 0.2 in the two-thirds outer media. To investigate whether LDL was trapped at high pressure in the inner layers, vessels were exposed to a tracer-free intraluminal solution for 30 minutes, after a 30-minute incubation with tracers. After washout, albumin was almost totally removed from the wall, while the CLDL were practically unchanged. Compaction of the media induced by high distending stresses applied to the vessel might have hindered the efflux of LDL, whereas albumin moved freely through the wall. Synergy between increased endothelial permeability and compaction of the media together with enhanced pressure-driven convection might account for the marked increase in LDL concentration observed in the inner wall at high pressure.
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Affiliation(s)
- P A Curmi
- Institut National de la Santé et de la Recherche Médicale Unité 141, Paris, France
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