101
|
Chen J, Li M, Lv Q, Chen G, Li Y, Li S, Mo Y, Ou S, Yuan Z, Huang M, Jiang Y. Blood lead level and its relationship to essential elements in preschool children from Nanning, China. J Trace Elem Med Biol 2015; 30:137-41. [PMID: 25575694 DOI: 10.1016/j.jtemb.2014.12.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 11/12/2014] [Accepted: 12/13/2014] [Indexed: 11/24/2022]
Abstract
OBJECTIVE Our study aimed to assess the distribution of blood lead level and its relationship to essential elements in preschool children in an urban area of China. DESIGN AND METHODS A total of 6741 children aged 0- to 6-year-old were recruited. Levels of lead, zinc, copper, iron, calcium, and magnesium in whole blood samples were determined using atomic absorption spectrometry. RESULTS The mean blood lead level (BLL) and the prevalence of BLL≥10μg/dl (5.26±4.08μg/dl and 6.84%, respectively) increased with age gradually, and there was a gender-difference for blood lead, copper, zinc and iron levels. Compared with the group of children who had BLLs<5μg/dl, the groups of 5≤BLLs<10μg/dl and 10≤BLLs<15μg/dl showed higher blood zinc, iron and magnesium levels, and a lower blood calcium level. A positive correlation of lead with zinc, iron and magnesium, and a negative correlation of lead with calcium were found in the group of children with BLL<5μg/dl. CONCLUSION Age- and gender-differences were found when assessing the BLL and intoxication prevalence in preschool children. Metabolic disorder of essential elements was found even with a low level of lead exposure.
Collapse
|
102
|
Li Q, Zhang F, Zhang S, Sheng X, Han X, Weng Q, Yuan Z. Seasonal expression of androgen receptor, aromatase, and estrogen receptor alpha and beta in the testis of the wild ground squirrel (Citellus dauricus Brandt). Eur J Histochem 2015; 59:2456. [PMID: 25820559 PMCID: PMC4378213 DOI: 10.4081/ejh.2015.2456] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2014] [Revised: 12/24/2014] [Accepted: 01/02/2015] [Indexed: 11/23/2022] Open
Abstract
The aim of this study was to investigate the seasonal expression of androgen receptor (AR), estrogen receptors α and β (ERα and ERβ) and aromatase cytochrome P450 (P450arom) mRNA and protein by real-time PCR and immunohistochemistry in the wild ground squirrel (WGS) testes. Histologically, all types of spermatogenic cells including mature spermatozoa were identified in the breeding season (April), while spermatogonia and primary spermatocytes were observed in the nonbreeding season (June), and spermatogonia, primary spermatocytes and secondary spermatocytes were found in pre-hibernation (September). AR was present in Leydig cells, peritubular myoid cells and Sertoli cells in the breeding season and pre-hibernation with more intense staining in the breeding season, whereas AR was only found in Leydig cells in the nonbreeding season; P450arom was expressed in Leydig cells, Sertoli cells and germ cells during the breeding season, whereas P450arom was found in Leydig cells and Sertoli cells during pre-hibernation, but P450arom was not present in the nonbreeding season; stronger immunohistochemical signal for ERα was present in Sertoli cells and Leydig cells during the breeding season; ERβ was only expressed in Leydig cells of the breeding season. Consistent with the immunohistochemical results, the mean mRNA level of AR, P450arom, ERα and ERβ were higher in the testes of the breeding season when compared to pre-hibernation and the nonbreeding season. These results suggested that the seasonal changes in spermatogenesis and testicular recrudescence and regression process in WGSs might be correlated with expression levels of AR, P450arom and ERs, and that estrogen and androgen may play an important autocrine/paracrine role to regulate seasonal testicular function.
Collapse
|
103
|
Retuerto M, Yin Z, Emge TJ, Stephens PW, Li MR, Sarkar T, Croft MC, Ignatov A, Yuan Z, Zhang SJ, Jin C, Paria Sena R, Hadermann J, Kotliar G, Greenblatt M. Hole Doping and Structural Transformation in CsTl1–xHgxCl3. Inorg Chem 2014; 54:1066-75. [DOI: 10.1021/ic502400d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
104
|
Yuan Z, Kolluri K, Janes S. S109 Mesenchymal Stem Cells Expressing Full Length Trail - A Promising Therapy For Cancer. Thorax 2014. [DOI: 10.1136/thoraxjnl-2014-206260.115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
105
|
SUN J, Zhang X, Chang J, Gomez D, Jiang S, Wang P, Yuan Z, Zhao L, Wang L, Hui Z, Liao Z. Gross Target Volume as the Predictor for the Overall Survival for Stage III Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.08.175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
106
|
Nie C, Luo Y, Zhao X, Luo N, Tong A, Liu X, Yuan Z, Wang C, Wei Y. Caspase-9 mediates Puma activation in UCN-01-induced apoptosis. Cell Death Dis 2014; 5:e1495. [PMID: 25356864 PMCID: PMC4649536 DOI: 10.1038/cddis.2014.461] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 09/17/2014] [Accepted: 09/18/2014] [Indexed: 02/05/2023]
Abstract
The protein kinase inhibitor 7-hydroxystaurosporine (UCN-01) is one of the most potent and frequently used proapoptotic stimuli. The BH3-only molecule of Bcl-2 family proteins has been reported to contribute to UCN-01-induced apoptosis. Here we have found that UCN-01 triggers Puma-induced mitochondrial apoptosis pathway. Our data confirmed that Akt-FoxO3a pathway mediated Puma activation. Importantly, we elucidate the detailed mechanisms of Puma-induced apoptosis. Our data have also demonstrated that caspase-9 is a decisive molecule of Puma induction after UCN-01 treatment. Caspase-9 mediates apoptosis through two kinds of feedback loops. On the one hand, caspase-9 enhances Puma activation by cleaving Bcl-2 and Bcl-xL independent of caspase-3. On the other hand, caspase-9 directly activated caspase-3 in the presence of caspase-3. Caspase-3 could cleave XIAP in an another positive feedback loop to further sensitize cancer cells to UCN-01-induced apoptosis. Therefore, caspase-9 mediates Puma activation to determine the threshold for overcoming chemoresistance in cancer cells.
Collapse
|
107
|
Tamayo S, Hopf K, Fields L, Sarich T, Wu S, Yannicelli D, Yuan Z. 40 Detection and Evaluation of Major Bleeding in Atrial Fibrillation or Total Hip or Knee Replacement Patients Treated with Rivaroxaban. Ann Emerg Med 2014. [DOI: 10.1016/j.annemergmed.2014.07.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
108
|
Yuan Z, Hanf M, Stephan R, Dulot F, Denys E, Florentin A, Harbich W, Wetzel P. Growth of palladium nanoparticles on nanostructured highly ordered pyrolytic graphite. SURF INTERFACE ANAL 2014. [DOI: 10.1002/sia.5674] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
109
|
Dong Q, Yuan Z, Zhang B, Meng M, Zhuang H. Human Positive Cofactor 4 (PC4) Is a Promising Target to Improve the Radiation Therapy Effect of Esophageal Squamous Cell Carcinomas. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
110
|
Sun J, Zhang X, Chang J, Gomez D, Jiang S, Wang P, Yuan Z, Zhao L, Wang L, Hui Z, Liao Z. Gross Target Volume as the Predictor for the Overall Survival for Stage III Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
111
|
Meng M, Wang H, Zaorsky N, Jiang C, Qian D, Zhao L, Yuan Z, Wang P. Multimodality Therapy Is Recommended for Limited-Stage Combined Small-Cell Esophageal Carcinoma. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
112
|
Quinn T, Healy N, Kabarriti R, Yuan Z, Scandiuzzi L, Adem A, Basu I, Guha C. Immunophenotype of B16-F10 Melanoma After Combination Therapy With Radiation and Systemic, RGD-Targeted, Adeno-Associated Virus Phage-TNF. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
113
|
Liu Q, Zhu Y, Zhang Y, Cao J, Yuan Z, Wu J, Wu T, Qian L, Zhang F, Li Y. Clinical and Prognostic Diversities of Extranodal Nasal-Type Nk/t-Cell Lymphoma of the Upper Aerodigestive Tract: A Multicenter Study of 1147 Patients From an Endemic Area in China. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
114
|
Hu J, Zhu Y, Zhao B, Li J, Liu L, Gu K, Zhang W, Su H, Teng Z, Tang S, Yuan Z, Feng Z, Wu F. Limited human-to-human transmission of avian influenza A(H7N9) virus, Shanghai, China, March to April 2013. Euro Surveill 2014; 19. [DOI: 10.2807/1560-7917.es2014.19.25.20838] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
In April 2013, two members of one family were successively confirmed as cases of avian influenza A(H7N9) virus infection in Shanghai, China. Respiratory specimens from the two cases and their close contacts were tested using real-time reverse-transcription (RT)-PCR. Paired serum specimens from contacts were tested by haemagglutination inhibition assay and microneutralisation test. The index patient developed severe pneumonia. Her husband presented with pneumonia shortly thereafter. Both cases had highly similar clinical features and infection with A(H7N9) virus was confirmed in both cases by genetic analysis. Phylogenetic analysis revealed a high level of similarity between the sequences from the two patients and environmental samples collected from wet markets in Minhang and Changning districts. Six samples from the Changning wet market were confirmed as A(H7N9) positive. Of 27 close contacts, one developed mild respiratory symptoms and another tested positive for A(H7N9) antibodies, but both were negative by real-time RT-PCR. The other 25 close contacts of both cases were A(H7N9) negative. Limited human-to-human transmission of the virus most likely occurred in the family cluster. However, other close contacts did not test positive for the virus, suggesting limited potential for extensive human-to-human transmission of the virus.
Collapse
|
115
|
Zeng W, Zhang J, Qi M, Peng C, Su J, Chen X, Yuan Z. αNAC inhibition of the FADD-JNK axis plays anti-apoptotic role in multiple cancer cells. Cell Death Dis 2014; 5:e1282. [PMID: 24901053 PMCID: PMC4611707 DOI: 10.1038/cddis.2014.192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 03/30/2014] [Accepted: 03/31/2014] [Indexed: 01/19/2023]
Abstract
Nascent polypeptide-associated complex α (αNAC) is reportedly overexpressed in several types of cancers and regulates cell apoptosis under hypoxic conditions in HeLa cells. The aim of our study was to investigate the apoptotic function of αNAC in cancer progression. First, we observed the cellular effects of αNAC depletion. Mouse αNAC was used to restore the protein level and verify the effect. An Annexin V assay, a caspase activity reporter assay, an apoptotic molecular marker, and a colony formation assay were used as markers to investigate the mechanisms of cell death caused by αNAC depletion. The Cancer 10-pathway reporter assay was used to screen downstream pathways. PCR site-directed deletion based on the functional domains of αNAC was used to construct deletion mutants. Those functional domain deletion mutants were used to recover the apoptotic phenotype caused by αNAC depletion. Finally, the role of αNAC in TNF-related apoptosis-inducing ligand (TRAIL) treatment was investigated in vitro. We found that depletion of αNAC in multiple types of cancer cells induce typical apoptotic cell death. This anti-apoptotic function is mediated by the FADD/c-Jun N-terminal kinase pathway. Intact αNAC is required for the direct binding of FADD as well as its anti-apoptosis function. Either αNAC depletion or the deletion of the ubiquitin-associated domain of αNAC sensitizes L929 cancer cells to mTRAIL treatment. Our study revealed a αNAC anti-apoptotic function in multiple types of cancer cells and suggested its potential in cancer therapy.
Collapse
|
116
|
Tao Z, Yuan Z, Sun Y, LeBlanc J, Dicker A, Lu B. P0168 Cotargeting MAPK and CDK4 signaling with concurrent radiotherapy as a strategy for the treatment of non-small-cell lung cancer. Eur J Cancer 2014. [DOI: 10.1016/j.ejca.2014.03.212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
117
|
Meng Z, Han R, Hu Y, Yuan Z, Jiang S, Zhang X, Xu J. Possible pandemic threat from new reassortment of influenza A(H7N9) virus in China. Euro Surveill 2014; 19. [DOI: 10.2807/1560-7917.es2014.19.6.20699] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Avian influenza A(H7N9) virus re-emerged in China in December 2013, after a decrease in the number of new cases during the preceding six months. Reassortment between influenza A(H7N9) and local H9N2 strains has spread from China's south-east coast to other regions. Three new reassortments of A(H7N9) virus were identified by phylogenetic analysis: between A(H7N9) and Zhejiang-derived strains, Guangdong/Hong Kong-derived strains or Hunan-derived A(H9N2) strains. Our findings suggest there is a possible risk that a pandemic could develop.
Collapse
|
118
|
Yuan Z, Zhao J, Yang Z, Li B, Yang H, Cui W, Zheng Q. Synergistic Effect of Regeneration and Inflammation via Ibuprofen-Loaded Electrospun Fibrous Scaffolds for Repairing Skeletal Muscle. EUR J INFLAMM 2014. [DOI: 10.1177/1721727x1401200105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Adult skeletal muscle regeneration involves serial steps among which inflammation in the wounded area is critical for the healing process. However, accelerated tissue regeneration and the inhibition of excessive inflammation are always the targets of tissue engineering, because excessive inflammation in the early stage can impede the regeneration in the following step. In this study, a feasible ibuprofen-loaded poly (L-lactide) (PLLA) fibrous scaffold was designed to evaluate the ability of preventing excessive inflammatory response and promoting regeneration using 35 Sprague-Dawley (SD) rats. The cytotoxicity assay of PLLA and ibuprofen-loaded PLLA fibrous scaffolds (IBU/PLLA) showed that there were no significant cell cytotoxicity on L6 cells. The histological results showed that the IBU/PLLA group had slighter inflammation than PLLA and control groups during the whole process. In the later stage, the regeneration process of the IBU/PLLA group took place on the 7th day, which was almost more than one week earlier than the PLLA and control groups. qRT-PCR analysis further displayed that the IBU/PLLA group had a lower level of inflammatory factors and higher expression of repair factors than the PLLA and control groups, especially from the 7th day, and lasted until the 21st day. Furthermore, there were no statistical differences between the PLLA group and the control group from histological results and qRT-PCR analysis. Taken together, through the muscle wound healing process, the results demonstrated that the ibuprofen-loaded PLLA fibrous scaffolds had better control of excessive inflammation and faster process of healing than non-ibuprofen-loaded groups.
Collapse
|
119
|
Olsson G, Carlsson B, Comas J, Copp J, Gernaey KV, Ingildsen P, Jeppsson U, Kim C, Rieger L, Rodríguez-Roda I, Steyer JP, Takács I, Vanrolleghem PA, Vargas A, Yuan Z, Åmand L. Instrumentation, control and automation in wastewater--from London 1973 to Narbonne 2013. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2014; 69:1373-1385. [PMID: 24718326 DOI: 10.2166/wst.2014.057] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Key developments of instrumentation, control and automation (ICA) applications in wastewater systems during the past 40 years are highlighted in this paper. From the first ICA conference in 1973 through to today there has been a tremendous increase in the understanding of the processes, instrumentation, computer systems and control theory. However, many developments have not been addressed here, such as sewer control, drinking water treatment and water distribution control. It is hoped that this review can stimulate new attempts to more effectively apply control and automation in water systems in the coming years.
Collapse
|
120
|
Zhao L, Liu W, Gong L, Liu Z, Yuan Z, Wang P, Pang Q, Wang J, Wang P. Is Postoperative Radiation Therapy Necessary for Patients With Completely Resected Small Cell Lung Cancer?: A Retrospective Analysis. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1385] [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]
|
121
|
Yuan Z, Yan T, Zheng W, Zuo C, Li H, Bian X, Zhang B, Li C, Cao Z, Xian L, Di Y, Liu F. Electrolytic partitioning of uranium and plutonium based on a new type of electrolytic mixer-settler. RADIOCHIM ACTA 2013. [DOI: 10.1524/ract.2013.2061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Summary
The design of a new type of electroreduction mixer-settler for the partitioning of uranium and plutonium during the Purex process, which is featured with E-shaped cathodes and U-shaped anodes in settling chamber, is described and the operational results achieved using this equipment are presented. The results show that this new type of mixer-settler has excellent separation performances. The flow rate of organic feed solution is 3 mL/min and the flow ratio of feed solution (1BF) to aqueous back extraction stream (1BX) and to organic wash stream (1BS) is 4/1/1. For an organic feed of 84 g/L uranium and 1.40 ⁓ 2.64 g/L plutonium, both the separation factor of plutonium from uranium and that of uranium from plutonium are apparently higher than 104
Collapse
|
122
|
Hu Y, Zhao Q, Wu L, Wang W, Yuan Z, Xu B. Prevalence of latent tuberculosis infection and its risk factors in schoolchildren and adolescents in Shanghai, China. Eur J Public Health 2013; 23:1064-9. [DOI: 10.1093/eurpub/ckt105] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
123
|
Liang X, He M, Chen T, Wu Y, Tian Y, Zhao Y, Shen Y, Liu Y, Yuan Z. 17β-estradiol suppresses the macrophage foam cell formation associated with SOCS3. Horm Metab Res 2013; 45:423-9. [PMID: 23430591 DOI: 10.1055/s-0033-1333751] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Evidence from clinical trials and animal experiments has shown that estrogen has anti-atherosclerotic effects when administered to young women or experimental animals. The mechanisms involve the modulation of vascular inflammation, growth factor expression, and oxidative stress injured arteries. However, whether estrogen modulates the foam cell formation in plaque remains unknown. Here, we investigated the effects of 17β-estradiol (E2) on cholesterol efflux in vivo and in vitro. ApoE null mice underwent an ovariectomy at 5(th) week of age and then were treated with E2 or vehicle for the following 8 weeks. Compared with the vehicle-treated mice, the serum total cholesterol level, atherosclerotic plaque size, and lipid deposits were decreased and meanwhile ATP-binding cassette transporter A1 (ABCA1) expression in the plaque was increased in mice with E2 treatment. E2 also increased suppressor of cytokine signaling 3 (SOCS3) expression in the atherosclerotic plaques and in RAW264.7 cells. In vitro, E2 treatment reversed janus kinase/signal transducers and activators of transcription (JAK/STAT)-inhibited ABCA1 expression in RAW264.7 cells but had no effect on ABCA1 expression in SOCS3 knockdown cells. SOCS3 overexpression elevated ABCA1 expression through the inhibition of JAK2/STAT3 phosphorylation. Finally, we also found that E2 enhanced the cholesterol efflux to apoA I in RAW264.7 cells. In summary, E2 reduces atherosclerosis in ApoE null mice associated with upregulating ABCA1 expression and modulating the cholesterol efflux, which are dependent on SOCS3 upregulation. These results provide new insight into the athero-protective effects of estrogen.
Collapse
|
124
|
Chen Y, Yan J, Wang Z, Yu S, Yuan Z, Yang C, Zheng Q. A meta-analysis of the relationship between lymphatic microvessel density and the survival of patient with colorectal cancer. Lymphology 2013; 46:42-51. [PMID: 23930440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Colorectal cancer (CRC) is a frequently observed malignant neoplasm that is a leading cause of cancer death despite recent advances in treatment and research. The role of lymphangiogenesis in CRC development is a source of controversy in current research. We undertook this study to examine the relationship between lymphatic microvessel density (LMVD) and the overall survival (OS) or disease free survival (DFS) of CRC using meta-analysis of recent studies. PubMed and Embase databeases were searched and nine relevant studies including 799 total patients were included. Six studies including 575 patients focused on overall survival (OS) and 3 studies with 224 patients focused on disease free survival (DFS). We performed a meta-analysis to estimate the prognostic role of lymphatic microvessel density by combining separately estimated hazard ratios. A remarkable correlation between LMVD and DFS was observed in pooled analyses using a fixed-effect model (HR 2.29; 95% CI 1.11, 3.48). LMVD and OS showed a pooled HR value of 1.02 (95% CI 0.71,1.33), indicating no significant correlation between LMVD and OS. There was no evidence for significant heterogeneity or publishing bias in both DFS and OS (I2 = 0.0%, P = 0.861; I2 = 48.1%, P = 0.086, respectively). A close relationship was observed between LMVD and DFS, though no correlation between LMVD and OS was apparent. The current meta-analysis suggests that LMVD may be a poor prognostic factor for CRC patients. However, these results should be regarded cautiously and future confirmatory studies are necessary.
Collapse
|
125
|
Vargas M, Yuan Z, Pijuan M. Effect of long-term starvation conditions on polyphosphate- and glycogen-accumulating organisms. BIORESOURCE TECHNOLOGY 2013; 127:126-131. [PMID: 23131632 DOI: 10.1016/j.biortech.2012.09.117] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2012] [Revised: 08/27/2012] [Accepted: 09/28/2012] [Indexed: 06/01/2023]
Abstract
Endogenous processes such as biomass decay and intracellular polymers degradation of polyphosphate-accumulating organisms (PAOs) and glycogen-accumulating organisms (GAOs) were investigated. Cultures enriched in Accumulibacter (a well known PAO) or Competibacter (a well known GAO) were subjected to 21 and 26 days of alternating anaerobic/aerobic conditions respectively. The main energy source for PAOs during starvation was their intracellular polyphosphate released into the medium during the first 14 days of starvation. In contrast, GAOs used their intracellular glycogen during the 26 days of starvation. Biomass decay rates were 0.029 d(-1) for PAOs and almost negligible for GAOs. The reduction in acetate uptake rate during the starvation period, referred to as activity decay, was 0.25 and 0.047 d(-1) for PAOs and GAOs, respectively. Once wastewater was reintroduced, both populations recovered their initial substrate uptake rate after 1 day. The results obtained show that PAOs are more affected than GAOs by starvation conditions.
Collapse
|