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Ning J, Yang M, Zhu Q, Liu X, Li M, Luo X, Yue X. Revealing the diversity of endogenous peptides and parent proteins in human colostrum and mature milk through peptidomics analysis. Food Chem 2024; 445:138651. [PMID: 38359565 DOI: 10.1016/j.foodchem.2024.138651] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 02/17/2024]
Abstract
Endogenous peptides and their parent proteins are important nutritional components with diverse biological functions. The objective of this study was to analyze and compare endogenous peptides and parent proteins found in human colostrum (HC) and human mature milk (HM) using a 4D label-free technique. In total, 5162 and 940 endogenous peptides derived from 258 parent proteins were identified in human milk by database (DB) search and de novo, respectively. Among these peptides, 2446 differentially expressed endogenous peptides with various bioactivities were identified. The Gene Ontology analysis unveiled the cellular components, biological processes, and molecular functions associated with these parent proteins. Metabolic pathway analysis suggested that neutrophil extracellular trap formation had the greatest significance with 24 parent proteins. These findings will offer a fresh perspective on the development of infant formula powder, highlighting the potential for incorporating these changes to enhance its nutritional composition and benefits.
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Affiliation(s)
- Jianting Ning
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China
| | - Mei Yang
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China
| | - Qing Zhu
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China
| | - Xiaoyu Liu
- Department of Obstetrics and Gynaecology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - Mohan Li
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China
| | - Xue Luo
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
| | - Xiqing Yue
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
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Liang X, Liu Y, Ning J. An Access Control Scheme with Privacy-preserving Authentication and Flexible Revocation for Smart Healthcare. IEEE J Biomed Health Inform 2024; PP:1-12. [PMID: 38656852 DOI: 10.1109/jbhi.2024.3391218] [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: 04/26/2024]
Abstract
IoT and 5G-enabled smart healthcare allow medical practitioners to diagnose patients from any location. Patients can share their electronic health records (EHRs) along with body data collected by wireless body area network (WBAN) devices with the cloud server. Private information, including medical practitioners' identities and patients' EHRs, is susceptible to leakage from the hospital or cloud servers. Medical practitioners' secret keys must be promptly revoked after diagnosis. In response to the challenges associated with user authentication and secret key revocation, this paper proposes an access control scheme with privacy-preserving authentication and flexible revocation for smart healthcare using attribute-based encryption (ABE), named PAFR-ABE, which provides access control to prevent malicious users from decrypting EHRs. Meanwhile, PAFR-ABE ensures privacy-preserving authentication for users during secret key generation, safeguarding users' identities and preventing unauthorized requests for secret keys. In addition, PAFR-ABE achieves flexible revocation and recovery of secret keys, eliminating the need to update secret keys for unrevoked users. Security analysis indicates that PAFR-ABE meets the security requirements of an access control scheme for smart healthcare, especially in terms of forward security and backward security. Performance analysis demonstrates that PAFR-ABE reduces key generation time by 57% and revocation time by thousands of times, compared with typical access control schemes.
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Liu Y, Chen Y, Yue X, Liu Y, Ning J, Li L, Wu J, Luo X, Zhang S. Proteomics and Metabolomics Analysis Reveal the Regulation Mechanism of Linoleate Isomerase Activity and Function in Propionibacterium acnes. ACS Omega 2024; 9:1643-1655. [PMID: 38222669 PMCID: PMC10785318 DOI: 10.1021/acsomega.3c08243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 11/26/2023] [Accepted: 11/29/2023] [Indexed: 01/16/2024]
Abstract
Conjugated linoleic acid (CLA) holds significant application prospects due to its anticancer, anti-atherosclerosis, lipid-lowering, weight-loss, and growth-promoting functions. The key to its efficient production lies in optimizing the biocatalytic performance of linoleic acid isomerase (LAI). Here, we constructed a Propionibacterium acnes mutant library and screened positive mutants with high linoleate isomerase activity. The proteomics and metabolomics were used to explore the mechanism in the regulation of linoleic acid isomerase activity. High-throughput proteomics revealed 104 differentially expressed proteins unique to positive mutant strains of linoleic acid isomerase of which 57 were upregulated and 47 were downregulated. These differentially expressed proteins were primarily involved in galactose metabolism, the phosphotransferase system, starch metabolism, and sucrose metabolism. Differential metabolic pathways were mainly enriched in amino acid biosynthesis, including glutamate metabolism, the Aminoacyl-tRNA biosynthesis pathway, and the ABC transporter pathway. The upregulated metabolites include dl-valine and Acetyl coA, while the downregulated metabolites include Glutamic acid and Phosphoenolpyruvate. Overall, the activity of linoleic acid isomerase in the mutant strain was increased by the regulation of key proteins involved in galactose metabolism, sucrose metabolism, and the phosphotransferase system. This study provides a theoretical basis for the development of high-yield CLA food.
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Affiliation(s)
- Ying Liu
- College
of Food Science, Shenyang Agricultural University, Shenyang 110000, China
| | - Yeping Chen
- College
of Food Science, Shenyang Agricultural University, Shenyang 110000, China
| | - Xiqing Yue
- College
of Food Science, Shenyang Agricultural University, Shenyang 110000, China
| | - Yingying Liu
- College
of Food Science, Shenyang Agricultural University, Shenyang 110000, China
| | - Jianting Ning
- College
of Food Science, Shenyang Agricultural University, Shenyang 110000, China
| | - Libo Li
- College
of Food Science, Shenyang Agricultural University, Shenyang 110000, China
| | - Junrui Wu
- College
of Food Science, Shenyang Agricultural University, Shenyang 110000, China
| | - Xue Luo
- College
of Food Science, Shenyang Agricultural University, Shenyang 110000, China
| | - Shuang Zhang
- College
of Food Science, Northeast Agricultural
University, Harbin 150000, China
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Shang J, Ning J, Bai X, Cao X, Yue X, Yang M. Identification and analysis of miRNAs expression profiles in human, bovine, and donkey milk exosomes. Int J Biol Macromol 2023; 252:126321. [PMID: 37586635 DOI: 10.1016/j.ijbiomac.2023.126321] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/25/2023] [Accepted: 08/10/2023] [Indexed: 08/18/2023]
Abstract
The purpose of this study is to identify and characterize mirnas in mammalian exosomes. Using Illumina sequencing technology, we sequenced miRNAs in the exosomes of mammalian human milk, bovine milk, and donkey milk. 36 known mature miRNAs and 256 novel miRNAs were identified in human milk. 61 known mature miRNAs and 346 novel miRNAs were identified in milk. 16 known mature miRNAs and 196 novel miRNAs were identified in donkey milk, and miRNAs target genes were predicted. Gene Ontology analysis showed that the miRNAs of human, bovine and donkey milk exosomes all labeled the functions related to body metabolism. Kyoto Encyclopedia pathway analysis showed that human, bovine and donkey milk miRNAs enriched AGE-RAGE signaling pathway in Complications of diabetes. Diabetes is a Metabolic disorder. Based on this pathway, we screened out hsa-miR-8485, bta-miR-342, miR-29c and other genes related to diabetes. This study has a new understanding of the physiological function of mammalian milk miRNAs, and also provides a new way to explore diabetes related miRNAs.
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Affiliation(s)
- Jingwen Shang
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Jianting Ning
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Xue Bai
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Xueyan Cao
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Xiqing Yue
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, PR China
| | - Mei Yang
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, PR China.
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Ning J, Yang M, Liu W, Luo X, Yue X. Proteomics and Peptidomics As a Tool to Compare the Proteins and Endogenous Peptides in Human, Cow, and Donkey Milk. J Agric Food Chem 2023; 71:16435-16451. [PMID: 37882656 DOI: 10.1021/acs.jafc.3c04534] [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] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
Cow's milk is the most widely used ingredient in infant formulas. However, its specific protein composition can cause allergic reactions. Finding alternatives to replace cow's milk and fill the nutritional gap with human milk is essential for the health of infants. Proteomic and peptidomic techniques have supported the elucidation of milk's nutritional ingredients. Recently, omics approaches have attracted increasing interest in the investigation of milk because of their high throughput, precision, sensitivity, and reproducibility. This review offers a significant overview of recent developments in proteomics and peptidomics used to study the differences in human, cow, and donkey milk. All three types of milks were identified to have critical biological functions in human health, particularly in infants. Donkey milk proteins were closer in composition to human milk, were less likely to cause allergic reactions, and may be developed as novel raw materials for formula milk powders.
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Affiliation(s)
- Jianting Ning
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, People's Republic of China
| | - Mei Yang
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, People's Republic of China
| | - Wanting Liu
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, People's Republic of China
| | - Xue Luo
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, People's Republic of China
| | - Xiqing Yue
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, People's Republic of China
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Ning J, Li M, Chen W, Yang M, Chen J, Luo X, Yue X. Characterization and biological function analysis of endogenous peptides derived from donkey colostrum proteins. Food Funct 2023; 14:8261-8275. [PMID: 37602399 DOI: 10.1039/d3fo01703f] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
Donkey colostrum, due to its abundance of active ingredients, including lysozyme, proteins, and peptides, is essential for the growth and immune defence of newborns. However, research on endogenous peptides in donkey colostrum is inadequate. This study analysed the profiles of endogenous peptides, their potential bioactivity, and the enzymes that generated these peptides using two different strategies. A total of 6202 endogenous peptides were characterised through a database search, while an additional 2997 peptides were identified de novo. Among the 1142 proteins identified, trypsin and plasmin demonstrated the highest bioactivities. Furthermore, a bioinformatics-based screening identified antioxidant peptides, angiotensin I-converting enzyme inhibitory peptides, and dipeptidyl peptidase IV inhibitory peptides as the three most active peptides. Gene Ontology (GO) annotation and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were conducted. These findings enhance our knowledge of endogenous peptides in donkey colostrum and provide crucial information regarding these peptides as nutritional factors for the future development of functional foods derived from donkey sources.
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Affiliation(s)
- Jianting Ning
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
| | - Mohan Li
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
| | - Weiyan Chen
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
| | - Mei Yang
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
| | - Jiali Chen
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
| | - Xue Luo
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
| | - Xiqing Yue
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
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Ning J, Cao X, Yue X, Yang M. Quantitative phosphoproteome analysis reveals differential whey phosphoproteins of bovine milk during lactation. Int J Biol Macromol 2023; 234:123681. [PMID: 36801229 DOI: 10.1016/j.ijbiomac.2023.123681] [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: 09/24/2022] [Revised: 02/08/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023]
Abstract
Whey proteins in bovine milk, as the most widely used nutritional components for infant formulae, have been paid more attention. However, the phosphorylation of proteins in bovine whey during lactation has not been thoroughly researched. In this study, a total of 185 phosphorylation sites on 72 phosphoproteins were identified in bovine whey during lactation. 45 differentially expressed whey phosphoproteins (DEWPPs) in colostrum and mature milk were focused on by bioinformatics approaches. Gene Ontology annotation indicated that blood coagulation, extractive space, and protein binding played a key role in bovine milk. The critical pathway of DEWPPs was related to the immune system according to KEGG analysis. Our study investigated the biological functions of whey proteins from a phosphorylation perspective for the first time. The results elucidate and increase our knowledge of differentially phosphorylation sites and phosphoproteins in bovine whey during lactation. Additionally, the data might offer fresh insight into the development of whey protein nutrition.
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Affiliation(s)
- Jianting Ning
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China
| | - Xueyan Cao
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China
| | - Xiqing Yue
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China
| | - Mei Yang
- College of Food Science, Shenyang Agricultural University, Shenyang 110866, China.
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Xin C, Wang X, Li X, Chen Y, Wang X, Ning J, Yang S, Wang Z. [Silencing SIRT1 reduces 5-fluorouracil resistance of cholangiocarcinoma cells by inhibiting the FOXO1/Rab7 autophagy pathway]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:454-459. [PMID: 37087591 PMCID: PMC10122739 DOI: 10.12122/j.issn.1673-4254.2023.03.16] [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] [Subscribe] [Scholar Register] [Indexed: 04/24/2023]
Abstract
OBJECTIVE To investigate the mechanism by which SIRT1 silencing reduces 5-fluorouracil (5-FU) resistance of cholangiocarcinoma cells and the role of FOXO1/Rab7 autophagy pathway in mediating this effect. METHODS Human cholangiocarcinoma HCCC-9810 cells were treated with 50, 100, 150, and 200 μg/mL 5-FU to construct a 5-FU-resistant cell model, whose expressions of SIRT1, FOXO1 and Rab7 were detected with immunofluorescence assay, Western blotting and RTqPCR, and the expression levels of autophagy related proteins (Beclin1, LC3, and p62) were detected with Western blotting. The 5-FU resistant cells were transfected with a SIRT1 siRNA, and the changes in 5-Fu resistance and migration ability of the cells were evaluated using CCK-8 assay and wound healing assay; The changes in FOXO1 and Rab7 mRNA levels and protein expressions of SIRT1, FOXO1, Rab7, Beclin1, LC3 and P62 were detected with RT-qPCR and Western blotting. RESULTS Treatments with 5-FU at 50, 100, 150, and 200 μg/mL all inhibited the proliferation of HCCC-9810 cells. Immunofluorescence assay revealed significantly enhanced SIRT1 expression in 5-FU-resistant HCC-9810 cells, and Western blotting also showed significantly up-regulated protein expressions of SIRT1, Rab7, P62, FOXO1 and Beclin 1 (P < 0.001) and an increased LC3II/LC3I ratio in the cells (P < 0.001). The mRNA levels of SIRT1, Rab7 and FOXO1 were also up-regulated in 5-Fu-resistant cells (P < 0.05). SIRT1 silencing significantly attenuated 5-FU resistance and migration ability of HCCC-9810 cells, and obviously decreased the protein expressions of SIRT1, Rab7, P62, FOXO1 and Beclin1 and the LC3II/LC3I ratio as well (P < 0.001). FOXO1 and Rab7 mRNA levels were significantly decreased in 5-FU-resistant HCC-9810 cells after SIRT1 silencing (P < 0.05). CONCLUSION Silencing SIRT1 attenuates 5-FU resistance in HCC-9810 cells by inhibiting the activation of the FOXO1/Rab7 autophagy pathway.
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Affiliation(s)
- C Xin
- Department of Gastroenterology, Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - X Wang
- Department of Anesthesiology, Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - X Li
- Department of Gastroenterology, Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Y Chen
- Department of Gastroenterology, Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - X Wang
- Department of Gastroenterology, Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - J Ning
- Department of Gastroenterology, Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - S Yang
- Department of Gastroenterology, Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Z Wang
- Department of Gastroenterology, Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
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Fu Y, Zhang TQ, Dong CJ, Xu YS, Dong HQ, Ning J. Clinical characteristics of 14 pediatric mycoplasma pneumoniae pneumonia associated thrombosis: a retrospective study. BMC Cardiovasc Disord 2023; 23:1. [PMID: 36600223 DOI: 10.1186/s12872-022-03030-9] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 12/26/2022] [Indexed: 01/06/2023] Open
Abstract
OBJECTIVE This study aimed to investigate the clinical characteristics and long-term prognosis of mycoplasma pneumoniae pneumonia (MPP)-associated thrombosis and to gain a better understanding of the diagnosis and treatment of the disease. METHODS The medical records of 14 children with MPP-associated thrombosis between January 2016 and April 2020 were retrospectively reviewed at the Tianjin Children's Hospital. RESULTS The ages of the patients ranged from 3 to 12 years old. Among the 14 cases, there were five cases of pulmonary embolism, two cases of cerebral infarction, one case of splenic infarction, one case of cardiac embolism, two cases of cardiac embolism with comorbid pulmonary embolism, one case of internal carotid artery and pulmonary embolism, one case of combined internal carotid artery and the cerebral infarction, and one case combined cardiac embolism and lower limb artery embolism. All cases had elevated D-dimer levels. After thrombolysis and anticoagulation therapy, three cases with cerebral embolism still suffered from neurological sequelae. In contrast, the remaining cases did not develop complications. CONCLUSION MPP-associated thrombosis can occur in any vessel of the body. Thrombosis-associated symptoms may be complex and non-specific. Elevated D-dimer levels in a child with refractory mycoplasma pneumoniae pneumonia should raise suspicion of thrombosis. The long-term prognosis of thrombosis was favorable after the timely administration of anticoagulant therapy.
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Affiliation(s)
- Y Fu
- Department of Respiratory Medicine, Tianjin Children's Hospital (Children's Hospital of Tianjin University), Tianjin, China
| | - T Q Zhang
- Department of Respiratory Medicine, Tianjin Children's Hospital (Children's Hospital of Tianjin University), Tianjin, China
| | - C J Dong
- Department of Respiratory Medicine, Tianjin Children's Hospital (Children's Hospital of Tianjin University), Tianjin, China
| | - Y S Xu
- Department of Respiratory Medicine, Tianjin Children's Hospital (Children's Hospital of Tianjin University), Tianjin, China
| | - H Q Dong
- Department of Respiratory Medicine, Tianjin Children's Hospital (Children's Hospital of Tianjin University), Tianjin, China
| | - J Ning
- Department of Respiratory Medicine, Tianjin Children's Hospital (Children's Hospital of Tianjin University), Tianjin, China.
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Khushalani N, Shue H, Gedye C, Mazumder A, Sharma S, Eastgate M, Majem Tarruella M, Antonanzas Basa M, Montaudie H, Marais-Nieman R, de la Cruz Merino L, Clements A, Mortier L, Jameson M, Shojaei F, Ning J, Aiyer L, Gillings M, Kabbinavar F, Ascierto P. 42TiP A multicenter, randomized, double-blind phase III study of HBI-8000 combined with nivolumab versus placebo with nivolumab in patients with unresectable or metastatic melanoma not previously treated with PD-1 or PD-L1 inhibitors. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.052] [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: 12/07/2022] Open
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Li M, Li Q, Dong H, Zhao S, Ning J, Bai X, Yue X, Xie A. Pilose antler polypeptides enhance chemotherapy effects in triple-negative breast cancer by activating the adaptive immune system. Int J Biol Macromol 2022; 222:2628-2638. [DOI: 10.1016/j.ijbiomac.2022.10.045] [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] [Received: 08/25/2022] [Revised: 10/04/2022] [Accepted: 10/06/2022] [Indexed: 11/05/2022]
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Tetzlaff MT, Adhikari C, Lo S, Rawson RV, Amaria RN, Menzies AM, Wilmott JS, Ferguson PM, Ross MI, Spillane AJ, Vu KA, Ma J, Ning J, Haydu LE, Saw RPM, Wargo JA, Tawbi HA, Gershenwald JE, Long GV, Davies MA, Scolyer RA. Histopathological features of complete pathological response predict recurrence-free survival following neoadjuvant targeted therapy for metastatic melanoma. Ann Oncol 2020; 31:1569-1579. [PMID: 32739408 DOI: 10.1016/j.annonc.2020.07.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 07/02/2020] [Accepted: 07/23/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Recent clinical trials demonstrated the safety and efficacy of neoadjuvant dabrafenib and trametinib (DT) among patients with surgically resectable clinical stage III BRAFV600E/K mutant melanoma. Although patients achieving a complete pathological response (pCR) exhibited superior recurrence-free survival (RFS) versus those who did not, 30% of pCR patients relapsed. We sought to identify whether histopathological features of the pathological response further delineated risk of relapse. METHODS Surgical resection specimens from DT-treated patients in two phase 2 clinical trials were reviewed. Histopathological features, including relative amounts of viable tumour, necrosis, melanosis, and fibrosis (hyalinized or immature/proliferative) were assessed for associations with patient outcomes. RESULTS Fifty-nine patients underwent surgical resection following neoadjuvant DT. Patients achieving pCR (49%) had longer RFS compared with patients who did not (P = 0.005). Patients whose treated tumour showed any hyalinized fibrosis had longer RFS versus those without (P = 0.014), whereas necrosis (P = 0.012) and/or immature/proliferative fibrosis (P = 0.026) correlated with shorter RFS. Multivariable analyses showed absence of pCR or presence of immature fibrosis independently predicted shorter RFS. Among pCR patients, mature/hyalinized-type fibrosis correlated with improved RFS (P = 0.035). CONCLUSIONS The extent and composition of the pathological response following neoadjuvant DT in BRAFV600E/K mutant melanoma correlates with RFS, including pCR patients. These findings support the need for detailed histological analysis of specimens collected after neoadjuvant therapy.
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Affiliation(s)
- M T Tetzlaff
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of Translational and Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA.
| | - C Adhikari
- Melanoma Institute of Australia, The University of Sydney, Sydney, Australia
| | - S Lo
- Melanoma Institute of Australia, The University of Sydney, Sydney, Australia
| | - R V Rawson
- Melanoma Institute of Australia, The University of Sydney, Sydney, Australia; Royal Prince Alfred Hospital, Sydney, Australia; New South Wales Health Pathology, Sydney, Australia
| | - R N Amaria
- Department of Melanoma Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - A M Menzies
- Melanoma Institute of Australia, The University of Sydney, Sydney, Australia; Royal North Shore and Mater Hospitals, Sydney, Australia
| | - J S Wilmott
- Melanoma Institute of Australia, The University of Sydney, Sydney, Australia
| | - P M Ferguson
- Melanoma Institute of Australia, The University of Sydney, Sydney, Australia; Royal Prince Alfred Hospital, Sydney, Australia; New South Wales Health Pathology, Sydney, Australia
| | - M I Ross
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - A J Spillane
- Melanoma Institute of Australia, The University of Sydney, Sydney, Australia; Royal North Shore and Mater Hospitals, Sydney, Australia
| | - K A Vu
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - J Ma
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - J Ning
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - L E Haydu
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - R P M Saw
- Melanoma Institute of Australia, The University of Sydney, Sydney, Australia; Royal Prince Alfred Hospital, Sydney, Australia
| | - J A Wargo
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - H A Tawbi
- Department of Melanoma Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - J E Gershenwald
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of Cancer Biology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - G V Long
- Melanoma Institute of Australia, The University of Sydney, Sydney, Australia; Royal North Shore and Mater Hospitals, Sydney, Australia
| | - M A Davies
- Department of Translational and Molecular Pathology, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of Melanoma Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of Systems Biology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - R A Scolyer
- Melanoma Institute of Australia, The University of Sydney, Sydney, Australia; Royal Prince Alfred Hospital, Sydney, Australia; New South Wales Health Pathology, Sydney, Australia.
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14
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Quan H, Wang L, Wang Z, Mei X, Ning J, She D. Alkylacylimidazoles in Claisen–Schmidt and Knoevenagel Condensations. Russ J Org Chem 2020. [DOI: 10.1134/s1070428020080187] [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: 11/23/2022]
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Liu M, Ning J, Du Y, Cao J, Zhang D, Wang J, Chen M. Modelling the evolution trajectory of COVID-19 in Wuhan, China: experience and suggestions. Public Health 2020; 183:76-80. [PMID: 32442842 PMCID: PMC7214341 DOI: 10.1016/j.puhe.2020.05.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [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] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 04/18/2020] [Accepted: 05/02/2020] [Indexed: 11/25/2022]
Abstract
OBJECTIVES In December 2019, a novel coronavirus disease (COVID-19) emerged in Wuhan city, China, which has subsequently led to a global pandemic. At the time of writing, COVID-19 in Wuhan appears to be in the final phase and under control. However, many other countries, especially the US, Italy and Spain, are still in the early phases and dealing with increasing cases every day. Therefore, this article aims to summarise and share the experience of controlling the spread of COVID-19 in Wuhan and provide effective suggestions to enable other countries to save lives. STUDY DESIGN Data from the National Health Commission of China are used to investigate the evolution trajectory of COVID-19 in Wuhan and discuss the impacts of the intervention strategies. METHODS A four-stage modified Susceptible-Exposed-Infectious-Removed (SEIR) model is presented. This model considers many influencing factors, including chunyun (the Spring festival), sealing off the city and constructing the Fangcang shelter hospitals. In addition, a novel method is proposed to address the abnormal data on 12-13 February as a result of changing diagnostic criteria. Four different scenarios are considered to capture different intervention measures in practice. The exposed population in Wuhan who moved out before sealing off the city have also been identified, and an analysis on where they had gone was performed using the Baidu Migration Index. RESULTS The results demonstrate that the four-stage model was effective in forecasting the peak, size and duration of COVID-19. We found that the combined intervention measures are the only effective way to control the spread and not a single one of them can be omitted. We estimate that England will be another epicentre owing to its incorrect response at the initial stages of COVID-19. Fortunately, big data technology can help provide early warnings to new areas of the pandemic. CONCLUSIONS The four-stage SEIR model was effective in capturing the evolution trajectory of COVID-19. Based on the model analysis, several effective suggestions are proposed to prevent and control the pandemic for countries that are still in the initial phases.
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Affiliation(s)
- M Liu
- Department of Management Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China.
| | - J Ning
- Department of Management Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Y Du
- Department of Management Science and Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - J Cao
- Department of Management Engineering, Xuzhou University of Technology, Xuzhou, 221018, China
| | - D Zhang
- School of Business, State University of New York, Oswego, NY, 13126, USA
| | - J Wang
- Department of Neurology, Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, China
| | - M Chen
- General Office, Affiliated Hospital of Jiangsu University, Zhenjiang, 212000, China
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Prsa M, Tenisch E, Piccini D, Ning J, Bouchardy J, Blanche C, Sekarski N, Pavon A, Vincenti G, Rodrigues D, Stuber M, Schwitter J, Rutz T. P6114D flow CMR vs. 2D cine PC-CMR for flow volume quantification in congenital heart disease. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez116.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- M Prsa
- University Hospital Centre Vaudois (CHUV), Woman-Mother-Child Department, Lausanne, Switzerland
| | - E Tenisch
- University Hospital Centre Vaudois (CHUV), Department of Radiology, Lausanne, Switzerland
| | - D Piccini
- University Hospital Centre Vaudois (CHUV), Department of Radiology, Lausanne, Switzerland
| | - J Ning
- University Hospital Centre Vaudois (CHUV), Department of Radiology, Lausanne, Switzerland
| | - J Bouchardy
- University Hospital Centre Vaudois (CHUV), Heart and Vessel Department, Lausanne, Switzerland
| | - C Blanche
- Geneva University Hospitals, Geneva, Switzerland
| | - N Sekarski
- University Hospital Centre Vaudois (CHUV), Woman-Mother-Child Department, Lausanne, Switzerland
| | - A Pavon
- University Hospital Centre Vaudois (CHUV), Heart and Vessel Department, Lausanne, Switzerland
| | - G Vincenti
- University Hospital Centre Vaudois (CHUV), Heart and Vessel Department, Lausanne, Switzerland
| | - D Rodrigues
- University Hospital Centre Vaudois (CHUV), Department of Radiology, Lausanne, Switzerland
| | - M Stuber
- University Hospital Centre Vaudois (CHUV), Department of Radiology, Lausanne, Switzerland
| | - J Schwitter
- University Hospital Centre Vaudois (CHUV), Heart and Vessel Department, Lausanne, Switzerland
| | - T Rutz
- University Hospital Centre Vaudois (CHUV), Heart and Vessel Department, Lausanne, Switzerland
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Dai S, Dai Y, Peng J, Xie X, Ning J. Simplified colonic dialysis with hemodialysis solutions delays the progression of chronic kidney disease. QJM 2019; 112:189-196. [PMID: 30407603 DOI: 10.1093/qjmed/hcy260] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 10/08/2018] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The colon plays a vital role in the disposal of nitrogenous waste products. Therefore, the colon may provide a therapeutic target for managing chronic kidney disease (CKD). AIM To evaluate the efficacy of a simplified model of colonic dialysis with hemodialysis solutions (SCD) to delay the progression of stages 3-5 CKD. DESIGN Retrospective study. METHODS We retrospectively analyzed 178 stages 3-5 CKD patients who did or did not receive SCD (SCD group, n = 88; control group, n = 90). The follow-up was 36 months. The outcome of CKD progression was defined as a decrease in 50% or more in estimated glomerular filtration rate, starting hemodialysis or peritoneal dialysis or undergoing transplantation. The Kaplan-Meier analysis was used to compare CKD progression between SCD and control groups as well as between subgroups at different CKD stages. Cox proportional hazard models adjusted for patients' characteristics were used to examine the association between SCD and the outcome. RESULTS For all patients, the outcome was significantly better in SCD group compared to control group (P < 0.05). The results were similar in the subgroups of patients at stage 4 (P = 0.001) and stage 5 (P = 0.000), but not in the subgroup of patients at stage 3 (P = 0.121). For all patients, SCD was associated with a lower risk of CKD progression after adjusted for patients' characteristics (adjusted hazard ratio, 0.373; 95% confidence interval, 0.201-0.694; P 0.002). CONCLUSION SCD is an effective supplementary therapy to delay the progression of stages 4-5 CKD.
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Affiliation(s)
- S Dai
- Department of Nephrology, Xiangya Hospital Central South University, 87 Xiangya Road, Changsha, Hunan, P.R. China
| | - Y Dai
- Department of Nephrology, Xiangya Hospital Central South University, 87 Xiangya Road, Changsha, Hunan, P.R. China
| | - J Peng
- Department of Nephrology, Xiangya Hospital Central South University, 87 Xiangya Road, Changsha, Hunan, P.R. China
| | - X Xie
- Department of Nephrology, Xiangya Hospital Central South University, 87 Xiangya Road, Changsha, Hunan, P.R. China
| | - J Ning
- Department of Nephrology, Xiangya Hospital Central South University, 87 Xiangya Road, Changsha, Hunan, P.R. China
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18
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Tian H, Nan F, Jiang H, Chang CC, Ning J, Huang Y. Public auditing for shared cloud data with efficient and secure group management. Inf Sci (N Y) 2019. [DOI: 10.1016/j.ins.2018.09.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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19
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Chen H, Ning J, Zhang Y. PUBLIC FINANCING SYSTEM FOR LONG-TERM CARE IN CHINA. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.215] [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: 11/12/2022] Open
Affiliation(s)
- H Chen
- School of Public Health, Peking University, Beijing, Beijing, China (People’s Republic)
| | - J Ning
- Peking University, Beijing, China
| | - Y Zhang
- Peking University, Beijing, China
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20
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Shen Y, Fujii T, Ueno NT, Tripathy D, Fu N, Zhou H, Ning J, Xiao L. Comparative efficacy of adjuvant trastuzumab-containing chemotherapies for patients with early HER2-positive primary breast cancer: a network meta-analysis. Breast Cancer Res Treat 2018; 173:1-9. [PMID: 30242579 DOI: 10.1007/s10549-018-4969-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 07/16/2018] [Accepted: 09/15/2018] [Indexed: 12/27/2022]
Abstract
BACKGROUND Trastuzumab (H) with chemotherapy benefits patients with HER2+ breast cancer (BC); however, we lack head-to-head pairwise assessment of survival or cardiotoxicity for specific combinations. We sought to identify optimal combinations. METHODS We searched PubMed, updated October 2017, using keywords "Breast Neoplasms/drug therapy," "Trastuzumab," and "Clinical Trial" and searched Cochrane Library. Our search included randomized trials of adjuvant H plus chemotherapy for early-stage HER2+ BC, and excluding trials of neoadjuvant therapy or without data to obtain hazard ratios (HRs) for outcomes. Following PRISMA guidelines, one investigator did initial search; two others independently confirmed and extracted information; and consensus with another investigator resolved disagreements. Before gathering data, we set outcomes of overall survival (OS), event-free survival (EFS), and severe cardiac adverse events (SCAEs). Analyzing 6 trials and 13,621 patients, we made direct and indirect comparisons using network meta-analysis on HR for OS or EFS and on odds ratio (OR) for SCAE; ranked therapy was done based on outcomes using p scores. RESULTS Compared with anthracycline-cyclophosphamide with taxane (ACT), ACT with concurrent H (ACT+H) showed best OS (HR 0.63, 95% confidence interval [CI] 0.55, 0.72), followed by taxane and carboplatin (TC) with concurrent H (TC+H) (HR 0.77, 95% CI 0.59, 1) and ACT with sequential H (ACT-H) (HR 0.85, 95% CI 0.68, 1.05). Pairwise comparisons showed statistically significant OS benefit for ACT+H over others; similar results for EFS. TC+H showed statistically significant lower SCAE risk compared to ACT+H (OR 0.13, 95% CI 0.03, 0.61). CONCLUSIONS Concurrent H with ACT or TC showed most clinical benefit for early-stage HER2+ BC; TC+H had lowest cardiotoxicity.
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Affiliation(s)
- Y Shen
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, 1400 Pressler St, Unit 1411, Houston, TX, 77030, USA.
| | - T Fujii
- Section of Translational Breast Cancer, Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX, 77030, USA
| | - N T Ueno
- Section of Translational Breast Cancer, Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX, 77030, USA
| | - D Tripathy
- Section of Translational Breast Cancer, Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX, 77030, USA
| | - N Fu
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, 1400 Pressler St, Unit 1411, Houston, TX, 77030, USA
| | - H Zhou
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, 1400 Pressler St, Unit 1411, Houston, TX, 77030, USA
| | - J Ning
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, 1400 Pressler St, Unit 1411, Houston, TX, 77030, USA
| | - L Xiao
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, 1400 Pressler St, Unit 1411, Houston, TX, 77030, USA
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Abstract
We studied the effects of rat stroma-free hemoglobin (rSFH), human stroma-free hemoglobin (hSFH), rat polyhemoglobin (rPoly), and human polyhemoglobin (hPoly) on coagulation factors in rats. Albumin and saline infused rats were controls. The infusion volume was 10% of the rat's blood volume. The concentrations of hemoglobin in this study were 7 g/dl. Measurements for prothrombin time (PT) and activated partial thromboplastin time (PTT) were at 5 minutes, 2, 6, 24 and 72 hours after infusion. Factor X, fibrinogen, plasminogen, antithrombin III, and antiplasmin were followed at 24 and 72 hours after infusion. Compared with saline infused rats PT and PTT did not change significantly in those rats infused with Hb preparations. There was a transient increase of PTT from 2 to 24 hours after infusion in albumin infused rats. Factor X, fibrinogen, antithrombin III and antiplasmin showed no significant differences between Hb infused groups and saline infused group. Twenty-four hours and 72 hours after infusion plasminogen decreased in all groups except the albumin infused rats at 24 hours after infusion when compared with normal rat plasma pool. However, there were no significant differences in plasminogen levels between the hemoglobin infused groups and the control saline group. Stroma-free and polyHb solutions (rSFH, hSFH, rPoly and hPoly) did not cause significant changes in prothrombin time and activated partial thromboplastin time in rats. The rats infused with hemoglobin solutions (rSFH, hSFH, rPoly, and hPloy) did not show significant differences in Factor X, fibrinogen, antithrombin III and antiplasmin levels compared with the control group.
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Affiliation(s)
- J. Ning
- Artificial Cells and Organs Research Centre, McGill University, Montreal - Canada
| | - T.M.S. Chang
- Artificial Cells and Organs Research Centre, McGill University, Montreal - Canada
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22
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Chen Y, Ning J, Ning Y, Liang KY, Bandeen-Roche K. On pseudolikelihood inference for semiparametric models with boundary problems. Biometrika 2018; 104:165-179. [PMID: 29430029 PMCID: PMC5793681 DOI: 10.1093/biomet/asw072] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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] [Received: 05/06/2014] [Indexed: 11/19/2022] Open
Abstract
Consider a semiparametric model indexed by a Euclidean parameter of interest and an
infinite-dimensional nuisance parameter. In many applications, pseudolikelihood provides a
convenient way to infer the parameter of interest, where the nuisance parameter is
replaced by a consistent estimator. The purpose of this paper is to establish the
asymptotic behaviour of the pseudolikelihood ratio statistic under semiparametric models.
In particular, we consider testing the hypothesis that the parameter of interest lies on
the boundary of its parameter space. Under regularity conditions, we establish the
equivalence between the asymptotic distributions of the pseudolikelihood ratio statistic
and a likelihood ratio statistic for a normal mean problem with a misspecified covariance
matrix. This result holds when the nuisance parameter is estimated at a rate slower than
the usual rate in parametric models. We study three examples in which the asymptotic
distributions are shown to be mixtures of chi-squared variables. We conduct simulation
studies to examine the finite-sample performance of the pseudolikelihood ratio test.
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Affiliation(s)
- Y Chen
- Department of Biostatistics and Epidemiology, University of Pennsylvania, 210 Blockley Hall, 423 Guardian Drive, Philadelphia, Pennsylvania 19104, U.S.A.,Department of Biostatistics, The University of Texas MD Anderson Cancer Center, 1400 Pressler St, Unit 1411, FCT4.6006, Houston, Texas 77030, .,Department of Statistical Science, Cornell University, Comstock Hall 1188, Ithaca, New York 14853, .,Department of Life Sciences, National Yang-Ming University, Taipei City 112, .,Department of Biostatistics, Johns Hopkins University, 615 N. Wolfe St., Baltimore, Maryland 21205,
| | - J Ning
- Department of Biostatistics and Epidemiology, University of Pennsylvania, 210 Blockley Hall, 423 Guardian Drive, Philadelphia, Pennsylvania 19104, U.S.A.,Department of Biostatistics, The University of Texas MD Anderson Cancer Center, 1400 Pressler St, Unit 1411, FCT4.6006, Houston, Texas 77030, .,Department of Statistical Science, Cornell University, Comstock Hall 1188, Ithaca, New York 14853, .,Department of Life Sciences, National Yang-Ming University, Taipei City 112, .,Department of Biostatistics, Johns Hopkins University, 615 N. Wolfe St., Baltimore, Maryland 21205,
| | - Y Ning
- Department of Biostatistics and Epidemiology, University of Pennsylvania, 210 Blockley Hall, 423 Guardian Drive, Philadelphia, Pennsylvania 19104, U.S.A.,Department of Biostatistics, The University of Texas MD Anderson Cancer Center, 1400 Pressler St, Unit 1411, FCT4.6006, Houston, Texas 77030, .,Department of Statistical Science, Cornell University, Comstock Hall 1188, Ithaca, New York 14853, .,Department of Life Sciences, National Yang-Ming University, Taipei City 112, .,Department of Biostatistics, Johns Hopkins University, 615 N. Wolfe St., Baltimore, Maryland 21205,
| | - K-Y Liang
- Department of Biostatistics and Epidemiology, University of Pennsylvania, 210 Blockley Hall, 423 Guardian Drive, Philadelphia, Pennsylvania 19104, U.S.A.,Department of Biostatistics, The University of Texas MD Anderson Cancer Center, 1400 Pressler St, Unit 1411, FCT4.6006, Houston, Texas 77030, .,Department of Statistical Science, Cornell University, Comstock Hall 1188, Ithaca, New York 14853, .,Department of Life Sciences, National Yang-Ming University, Taipei City 112, .,Department of Biostatistics, Johns Hopkins University, 615 N. Wolfe St., Baltimore, Maryland 21205,
| | - K Bandeen-Roche
- Department of Biostatistics and Epidemiology, University of Pennsylvania, 210 Blockley Hall, 423 Guardian Drive, Philadelphia, Pennsylvania 19104, U.S.A.,Department of Biostatistics, The University of Texas MD Anderson Cancer Center, 1400 Pressler St, Unit 1411, FCT4.6006, Houston, Texas 77030, .,Department of Statistical Science, Cornell University, Comstock Hall 1188, Ithaca, New York 14853, .,Department of Life Sciences, National Yang-Ming University, Taipei City 112, .,Department of Biostatistics, Johns Hopkins University, 615 N. Wolfe St., Baltimore, Maryland 21205,
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23
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Babina I, Cutts R, Ning J, McKnight E, Pearson A, Swain A, Turner N. Molecular determinants of sensitivity and resistance to FGFR inhibition in FGFR2-amplified gastric cancer. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61453-3] [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: 11/30/2022]
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24
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Manda KR, Tripathi P, Hsi AC, Ning J, Ruzinova MB, Liapis H, Bailey M, Zhang H, Maher CA, Humphrey PA, Andriole GL, Ding L, You Z, Chen F. NFATc1 promotes prostate tumorigenesis and overcomes PTEN loss-induced senescence. Oncogene 2015; 35:3282-92. [PMID: 26477312 PMCID: PMC5012433 DOI: 10.1038/onc.2015.389] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [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] [Received: 04/02/2015] [Revised: 08/25/2015] [Accepted: 09/08/2015] [Indexed: 02/06/2023]
Abstract
Despite recent insights into prostate cancer (PCa)-associated genetic changes, full understanding of prostate tumorigenesis remains elusive due to complexity of interactions among various cell types and soluble factors present in prostate tissue. We found upregulation of Nuclear Factor of Activated T Cells c1 (NFATc1) in human PCa and cultured PCa cells, but not in normal prostates and non-tumorigenic prostate cells. To understand the role of NFATc1 in prostate tumorigenesis in situ, we temporally and spatially controlled the activation of NFATc1 in mouse prostate and showed that such activation resulted in prostatic adenocarcinoma with features similar to those seen in human PCa. Our results indicate that the activation of a single transcription factor, NFATc1 in prostatic luminal epithelium to PCa can affect expression of diverse factors in both cells harboring the genetic changes and in neighboring cells through microenvironmental alterations. In addition to the activation of oncogenes c-MYC and STAT3 in tumor cells, a number of cytokines and growth factors, such as IL1β, IL6, and SPP1 (Osteopontin, a key biomarker for PCa), were upregulated in NFATc1-induced PCa, establishing a tumorigenic microenvironment involving both NFATc1 positive and negative cells for prostate tumorigenesis. To further characterize interactions between genes involved in prostate tumorigenesis, we generated mice with both NFATc1 activation and Pten inactivation in prostate. We showed that NFATc1 activation led to acceleration of Pten-null–driven prostate tumorigenesis by overcoming the PTEN loss–induced cellular senescence through inhibition of p21 activation. This study provides direct in vivo evidence of an oncogenic role of NFATc1 in prostate tumorigenesis and reveals multiple functions of NFATc1 in activating oncogenes, in inducing proinflammatory cytokines, in oncogene addiction, and in overcoming cellular senescence, which suggests calcineurin-NFAT signaling as a potential target in preventing PCa.
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Affiliation(s)
- K R Manda
- Department of Medicine, Washington University, School of Medicine, St Louis, MO, USA
| | - P Tripathi
- Department of Pathology and Immunology, Washington University, St Louis, MO, USA
| | - A C Hsi
- The Genome Institute, Washington University, St Louis, MO, USA
| | - J Ning
- Department of Medicine, Washington University, School of Medicine, St Louis, MO, USA.,The Genome Institute, Washington University, St Louis, MO, USA
| | - M B Ruzinova
- Department of Pathology and Immunology, Washington University, St Louis, MO, USA
| | - H Liapis
- Department of Pathology and Immunology, Washington University, St Louis, MO, USA
| | - M Bailey
- The Genome Institute, Washington University, St Louis, MO, USA
| | - H Zhang
- Department of Cell and Developmental Biology, University of Massachusetts Medical School, Worcester, MA, USA
| | - C A Maher
- Department of Medicine, Washington University, School of Medicine, St Louis, MO, USA.,The Genome Institute, Washington University, St Louis, MO, USA.,Siteman Cancer Center, Washington University, St Louis, MO, USA
| | - P A Humphrey
- Department of Pathology, Yale University, New Haven, CT, USA
| | - G L Andriole
- Siteman Cancer Center, Washington University, St Louis, MO, USA.,Department of Surgery, Washington University, St Louis, MO, USA
| | - L Ding
- Department of Medicine, Washington University, School of Medicine, St Louis, MO, USA.,The Genome Institute, Washington University, St Louis, MO, USA.,Siteman Cancer Center, Washington University, St Louis, MO, USA
| | - Z You
- Department of Structural and Cellular Biology, Tulane University, New Orleans, LA, USA
| | - F Chen
- Department of Medicine, Washington University, School of Medicine, St Louis, MO, USA.,Siteman Cancer Center, Washington University, St Louis, MO, USA.,Department of Cell Biology and Physiology, Washington University, St Louis, MO, USA
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25
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Ning J, Peng S, Ueno N, Xu Y, Shih Y, Karuturi M, Giordano S, Shen Y. Has racial difference in cause-specific death improved in older patients with late-stage breast cancer? Ann Oncol 2015. [PMID: 26223248 DOI: 10.1093/annonc/mdv330] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Research on temporal mortality trends for stage IV breast cancer is limited, especially among older patients by race. We evaluated factors associated with overall, breast cancer-specific and other-cause mortalities using contemporary population data. PATIENTS AND METHODS Using the Surveillance, Epidemiology, and End Results-Medicare linked data, we identified older women (≥ 66 years) with stage IV breast cancer diagnosed in 2002-2009. Overall mortality was estimated by the Kaplan-Meier method, compared by log-rank tests, and modeled by Cox models. Competing risk analysis was used to evaluate breast cancer-specific and other-cause mortalities. RESULTS The median overall survival time for non-Hispanic blacks improved from 8.6 months in 2002-2003 to 9.9 months in 2007-2009, whereas that for non-Hispanic whites improved from 12.1 to 14.8 months. In the multivariate model, the risk of breast cancer-specific death for patients diagnosed in 2007-2009 was significantly lower (P = 0.02), whereas the risk of other-cause mortality changed little (P = 0.88) compared with those risks for patients diagnosed in 2002-2003. Non-Hispanic blacks had the higher risk of both mortality types compared with non-Hispanic whites; a diagnosis time-race interaction term was not statistically significant for either cause of death. CONCLUSION Breast cancer-specific mortality among older women modestly improved from 2002 to 2009 across all races, but not other-cause mortality. Racial disparity in mortality persisted, but did not widen in this period. Efforts should be devoted to improving other-cause mortality for all women, with special attention toward decreasing breast cancer mortality for non-Hispanic black women.
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Affiliation(s)
- J Ning
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - S Peng
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - N Ueno
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Y Xu
- Department of Health Services Research, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Y Shih
- Department of Health Services Research, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - M Karuturi
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - S Giordano
- Department of Breast Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA Department of Health Services Research, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - Y Shen
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, USA
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26
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Jin Z, Chan H, Ning J, Lu K, Ma D. The role of hydrogen sulfide in pathologies of the vital organs and its clinical application. J Physiol Pharmacol 2015; 66:169-179. [PMID: 25903948] [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] [Received: 08/13/2014] [Accepted: 12/15/2015] [Indexed: 06/04/2023]
Abstract
Hydrogen sulfide (H(2)S) is one of the more recently recognised gaseous transmitters that have been shown to be involved in a large range of cellular functions. While H(2)S generally has pro-survival and anti-apoptotic effects, at higher concentrations, this effect is reversed and it becomes anti-proliferative and pro-apoptotic instead. H(2)S is also involved in a number of organ specific functions such as thermoregulation, modulating myocardial activity and broncho-dilation. H(2)S has organ protective effects in ischaemia, acting as a vasodilator and negative inotrope to reduce blood pressure. H(2)S generally has a protective effect in acute inflammation and oxidative stress from causes such as allergy and toxins. In chronic organ pathology, low H(2)S levels have been observed in a number of different diseases, while there is evidence that H(2)S may be beneficial in a number of chronic organ degenerations. A number of studies on human tissue and cell line conducted in the recent years shows H(2)S exerting largely similar effects in humans as those in animals. This may indicate that the pharmacological potential of H(2)S modulators could have therapeutic value in a large range of acute conditions such as ischaemia, toxin exposure as well as chronic conditions such as hypertension, lung diseases and neurodegenerative disease.
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Affiliation(s)
- Z Jin
- Section of Anesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea & Westminster Hospital, London, United Kingdom.
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27
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Luo X, Zhao H, Hennah L, Ning J, Liu J, Tu H, Ma D. Impact of isoflurane on malignant capability of ovarian cancer in vitro. Br J Anaesth 2014; 114:831-9. [PMID: 25501719 DOI: 10.1093/bja/aeu408] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/01/2014] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Metastatic recurrence of ovarian cancer is the foremost cause of postoperative mortality. With recent research indicating that inhalation of anaesthetics may influence cancer cell behaviour, this study investigated the effects of isoflurane on the expression of tumorigenic markers and proliferative capacity in ovarian cancer cells. METHODS Ovarian cancer (SK-OV3) cells were cultured and then exposed to 2% isoflurane for 2 h. The expression of markers involved in cell proliferation, angiogenesis, and migration were assessed up to 24 h after treatment using immunofluorescence staining, western blotting, and flow cytometry. The effects of isoflurane on in vitro angiogenesis and migration were also determined. RESULTS Isoflurane exposure significantly increased insulin-like growth factor (IGF)-1 and IGF-1R expression, cell cycle progression, and cell proliferation in SK-OV3 cells. Increased expression of the angiogenic markers vascular endothelial growth factor (VEGF) by 56% (P<0.05) and angiopoietin-1 by 62% (P<0.05) was also observed 24 h after isoflurane exposure together with an enhanced in vitro angiogenesis. Cell migration was significantly increased after exposure to isoflurane together with increased production of both matrix metalloproteinases 2 and 9 (both P<0.05) by almost five-fold relative to control. These effects were abolished when IGF-1R signalling was blocked either by neutralizing antibody or by small interfering RNA. CONCLUSIONS Our data indicate that isoflurane increases the malignant potential of ovarian cancer cells through the up-regulation of markers associated with the cell cycle, proliferation, and angiogenesis. This study warrants further investigations.
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Affiliation(s)
- X Luo
- Department of Anaesthesiology and Section of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, UK
| | - H Zhao
- Section of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, UK
| | - L Hennah
- Section of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, UK
| | - J Ning
- Section of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, UK
| | - J Liu
- Department of Anaesthesiology and
| | - H Tu
- Department of Neurosurgery, Taihe Hospital, Hubei University of Medicine, Hubei, China
| | - D Ma
- Section of Anaesthetics, Pain Medicine and Intensive Care, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, Chelsea and Westminster Hospital, London, UK
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Liu G, Dong C, Zhang R, Zhang L, Qian S, Cai J, Zhang J, Ning J. 181 Aberrant Wnt signaling activation in human cancers: In vitro and in vivo models to facilitate Wnt targeted drug development. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)70307-7] [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: 10/24/2022]
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Ning J, Qin J, Asgharian M, Shen Y. Empirical likelihood-based confidence intervals for length-biased data. Stat Med 2013; 32:2278-91. [PMID: 23027662 DOI: 10.1002/sim.5637] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Accepted: 09/05/2012] [Indexed: 11/10/2022]
Abstract
Logistic or other constraints often preclude the possibility of conducting incident cohort studies. A feasible alternative in such cases is to conduct a cross-sectional prevalent cohort study for which we recruit prevalent cases, that is, subjects who have already experienced the initiating event, say the onset of a disease. When the interest lies in estimating the lifespan between the initiating event and a terminating event, say death for instance, such subjects may be followed prospectively until the terminating event or loss to follow-up, whichever happens first. It is well known that prevalent cases have, on average, longer lifespans. As such, they do not constitute a representative random sample from the target population; they comprise a biased sample. If the initiating events are generated from a stationary Poisson process, the so-called stationarity assumption, this bias is called length bias. The current literature on length-biased sampling lacks a simple method for estimating the margin of errors of commonly used summary statistics. We fill this gap by using the empirical likelihood-based confidence intervals by adapting this method to right-censored length-biased survival data. Both large and small sample behaviors of these confidence intervals are studied. We illustrate our method by using a set of data on survival with dementia, collected as part of the Canadian Study of Health and Aging.
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Affiliation(s)
- J Ning
- Department of Biostatistics, The University of Texas M. D. Anderson Cancer Center, Houston, TX 77030, USA.
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Ning J, Otto TD, Pfander C, Schwach F, Brochet M, Bushell E, Goulding D, Sanders M, Lefebvre PA, Pei J, Grishin NV, Vanderlaan G, Billker O, Snell WJ. Comparative genomics in Chlamydomonas and Plasmodium identifies an ancient nuclear envelope protein family essential for sexual reproduction in protists, fungi, plants, and vertebrates. Genes Dev 2013; 27:1198-215. [DOI: 10.1101/gad.212746.112] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
The present study investigated the genotoxic effects of flumorph in various organs (brain, liver, spleen, kidney and sperm) of mice. The DNA damage, measured as comet tail length (µm), was determined using the alkaline comet assay. The comet assay is a sensitive assay for the detection of genotoxicity caused by flumorph using mice as a model. Statistically significant increases in comet assay for both dose-dependent and duration-dependent DNA damage were observed in all the organs assessed. The organs exhibited the maximum DNA damage in 96 h at 54 mg/kg body weight. Brain showed maximum DNA damage followed by spleen > kidney > liver > sperm. Our data demonstrated that flumorph had induced systemic genotoxicity in mammals as it caused DNA damage in all tested vital organs, especially in brain and spleen.
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Affiliation(s)
- T Zhang
- 1Key Laboratory of Pesticide Chemistry and Application, Ministry of Agriculture, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
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Ning J, Zhang J, Liu W, Lang Y, Xue Y, Xu S. Overexpression of ubiquitin-specific protease 22 predicts poor survival in patients with early-stage non-small cell lung cancer. Eur J Histochem 2012; 56:e46. [PMID: 23361242 PMCID: PMC3567765 DOI: 10.4081/ejh.2012.e46] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [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] [Received: 05/24/2012] [Revised: 10/11/2012] [Accepted: 07/26/2012] [Indexed: 01/16/2023] Open
Abstract
Ubiquitin-specific protease 22 (USP22), a novel ubiquitin hydrolase, has been implicated in oncogenesis and cancer progression in various types of human cancer. However, the clinical significance of USP22 expression in non-small cell lung cancer (NSCLC) has not been determined. In the present study, USP22 messenger RNA (mRNA) and protein levels were analyzed by quantitative real-time polymerase chain reaction (PCR) and western blot analysis in 30 cases of NSCLC and in corresponding non-tumor tissue samples. Furthermore, immunohistochemistry was performed to detect USP22 protein expression in 86 primary tumor tissues derived from clinically annotated NSCLC cases at stage I-II. In our analysis we found that both USP22 mRNA and protein levels in NSCLC tissues were significantly higher than those in corresponding non-tumor tissues and that there was a significant correlation between the expression of USP22 mRNA and protein (P=0.000, κ=0.732). In addition, a high-level of USP22 expression was observed in 53.3% (39 out of 86) cases and it was correlated with large tumor size (P=0.029) and lymph node metastasis (P=0.026). Patients with tumors displaying a high-level of USP22 expression showed significantly shorter survival (P=0.006, log-rank test). Importantly, multivariate analysis showed that high USP22 protein expression was an independent prognostic factor for NSCLC patients (P=0.003). In sum, our data suggest that USP22 plays an important role in NSCLC progression at the early stage, and that overexpression of USP22 in tumor tissues could be used as a potential prognostic marker for patients with early clinical stage of NSCLC.
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Affiliation(s)
- J Ning
- Department of Thoracic Surgery, The Third Affiliated Hospital of Harbin Medical University, Harbin, China
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Ravosa MJ, Ning J, Costley DB, Daniel AN, Stock SR, Stack MS. Masticatory biomechanics and masseter fiber-type plasticity. J Musculoskelet Neuronal Interact 2010; 10:46-55. [PMID: 20190379] [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: 05/28/2023]
Abstract
Compared to force-resisting elements of the mammalian feeding apparatus, data on jaw-muscle plasticity are less common. This hinders our understanding of the role of force-producing structures in craniofacial development and integration. Thus, we investigated fiber-type abundance and cross-sectional area in the masseter muscle of growing rabbits subjected to diet-induced variation in masticatory stresses. Three loading cohorts were obtained as weanlings and raised until adult on different diets. Immediately following euthanasia, left-sided masseters were dissected away, weighed, and then divided into anterior, intermediate and posterior sections for fiber-type immunohistochemistry. These data were compared to mandibular proportions and biomineralization from the same subjects. Results indicate that growing mammals fed a tougher, fracture-resistant diet develop: absolutely and relatively lower numbers of Type I jaw-muscle fibers; absolutely larger fiber cross-sectional areas; and relative increases in the amount of Type II fibers. These analyses indicate that an early postweaning dietary shift can induce significant variation in muscle fiber types. Such norms of reaction are comparable to those observed in bony elements. Functionally, the processing of fracture-resistant foods results in jaw adductors potentially characterized by faster contraction times and higher force production capabilities, which may influence the frequency and amplitude of forces experienced by oral tissues.
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Affiliation(s)
- M J Ravosa
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO 65212, USA.
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Ning J, Wu TH, Tian Y, Wang CY, Tian G, Zhang BJ, Liu KX, Ma XC. Identification of cinobufagin metabolites in the bile of rats. Xenobiotica 2009; 40:48-54. [DOI: 10.3109/00498250903331049] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Liu XF, Sun GS, Li JM, Ning J, Zhao YM, Luo MC, Wang L, Zhao WS, Zeng YP. Vertical PIN ultraviolet photodetectors based on 4H-SiC homoepilayers. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/pssc.200674256] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Shu C, Guo L, Bruner G, Gilkeson G, Kamen D, Tang YH, Dozmorov I, Kelly J, Ning J, Williams D, Pongratz C, James J, Guthridge JM, Harley JB. 358 DIFFERENTIAL GENE EXPRESSION IN B CELLS FROM GULLAH LUPUS PATIENTS AND CONTROLS. J Investig Med 2005. [DOI: 10.2310/6650.2005.00006.357] [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: 11/18/2022]
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Ning J, Sun M, Ikeda T. [Relationship between hypotension during hemodialysis and autonomic dysfunction in diabetic hemodialysis patients]. Hunan Yi Ke Da Xue Xue Bao 2002; 24:572-4. [PMID: 12080725] [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: 02/25/2023]
Abstract
OBJECTIVE To observe the change of autonomic nerve function in diabetes mellitus(DM) patients who receive hemodialysis and to explore the relationship between this change and hypotension during hemodialysis. METHODS Twenty-five DM patients and 40 chronic glomerulonephritis(CGN) patients who received hemodialysis were checked. We tested their coefficient of variation R-R(CVR-R) in ECG, difference of systolic blood pressure between lying and standing positions, and serum parathyroid hormone(PTH); monitored the decrease of blood pressure during hemodialysis. RESULTS The rate(80.0%) of autonomic dysfunction(AD) in DM group is significantly higher than that(57.5%, P < 0.05) in CGN group. The rate(37.2%) of hypotension in those who had AD was significantly higher than that(18.2%, P < 0.05) in those who had normal autonomic nerve function during hemodialysis. No significant difference was found in PTH between each group. CONCLUSION DM patients who receive hemodialysis are often complicated with AD, which is one of the reasons that causes hypotension during hemodialysis.
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Affiliation(s)
- J Ning
- Department of Nephrology, Xiangya Hospital, Hunan Medical University, Changsha 410008
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Ning J, Henderson C, Grant MH. The cytotoxicity of chromium in osteoblasts: effects on macromolecular synthesis. J Mater Sci Mater Med 2002; 13:47-52. [PMID: 15348204 DOI: 10.1023/a:1013630401959] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Exposure of an immortalized rat osteoblast cell line, FFC cells, to Cr VI resulted in inhibition of protein, DNA and RNA synthesis. Protein synthesis (3H-leucine incorporation) was most sensitive. There was no inhibition of the incorporation of 3H-proline into collagen at the concentrations which inhibited general protein synthesis (1 microM), but synthesis of extracellular collagen fibers was markedly decreased by concentrations of 0.5 microM Cr VI and above. This indicates that some aspect of the post-translational processing of the collagen fibers is sensitive to Cr VI inhibition. Collagen fiber formation was not inhibited by Cr III (which does not penetrate the cell membrane) or when Cr VI was reduced to Cr III extracellularly. This suggests that the Cr VI inhibits an intracellular stage of post-translational collagen processing. Both Cr VI and Cr III inhibit collagenase activity, the former being more potent but less efficacious. Our results suggest that leakage of chromium ions from orthopedic implants may cause a decrease in the proliferation and infiltration of osteoblasts around the implant, and a reduction in the synthesis and altered turnover of collagen in extracellular matrix. These effects will influence the osseointegration of implants, the osteolytic response, and ultimately the stable life-time of the implants.
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Affiliation(s)
- J Ning
- Bioengineering Unit, Strathclyde University, Wolfson Center, Glasgow G4 0NW, UK
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Abstract
Broomsedge (Andropogon virginicus L.) is a dominant grass revegetating many abandoned coal-mined lands in West Virginia, USA. Residual soils on such sites are often characterized by low pH, low nutrients, and high aluminium. Experiments were conducted to assess the resistance of broomsedge to limited phosphorus (Pi) availability and to investigate the role that arbuscular mycorrhizal (AM) fungi play in aiding plant growth under low Pi conditions. Pregerminated mycorrhizal and non-mycorrhizal seedlings were grown in a sand-culture system with nutrient solutions containing Pi concentrations ranging from 10 to 100 microM for 8 weeks. Non-mycorrhizal plants exhibited severe inhibition of growth under Pi limitation (<60 microM). Colonization by AM fungi (combined Glomus clarum Nicolson & Schenck and Gigaspora gigantea (Nicol. & Gerd.) Gerd. & Trappe) greatly enhanced host plant growth at low Pi concentrations, but did not benefit growth when Pi was readily available (100 microM). In comparison to non-mycorrhizal plants, mycorrhizal plants had higher phosphorus use efficiency at low Pi concentrations and maintained nearly constant tissue nutrient concentrations across the gradient of Pi concentrations investigated. Manganese (Mn) and sodium (Na) accumulated in shoots of non-mycorrhizal plants under Pi limitation. Mycorrhizal plants exhibited lower instantaneous Pi uptake rates and significantly lower C(min) values compared to non-mycorrhizal plants. These patterns suggest that the symbiotic association between broomsedge roots and AM fungi effectively maintains nutrient homeostasis through changes in physiological properties, including nutrient uptake, allocation and use. The mycorrhizal association is thus a major adaptation that allows broomsedge to become established on infertile mined lands.
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Affiliation(s)
- J Ning
- Department of Biology, West Virginia University, Morgantown, WV 26506, USA
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Tang J, Fang Z, Hao Y, Yang H, Ning J, Qi J, Zhao ZM, Zhang J, Hu HK, Xie HP, Gao FJ, Lin SE, Wang XJ. [The predomination of rotavirus G3 serotype among children with diarrhea in Lulong County in 1998]. Zhonghua Shi Yan He Lin Chuang Bing Du Xue Za Zhi 2001; 15:234-5. [PMID: 11986693] [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: 02/24/2023]
Abstract
OBJECTIVE To investigate the epidemiology of rotavirus diarrhea among children in rural population. METHODS 120 stool specimens collected from children with diarrhea during the winter of 1998 in Lulong County, Hebei Province were examined for rotavirus by PAGE and ELISA and for serotype by ELISA and PCR. RESULTS Rotavirus was detected in children aged between 2-24 months. The positive rate of rotavirus was 39.2% and the ratio of male to female was 1-1.47. All rotavirus RNA profiles were long pattern. The distribution of rotavirus serotypes was type 3(61.7%), followed by type 1(36.2%), and type 4(6.4%). CONCLUSIONS The epidemiology of rotavirus diarrhea during 1998 rotavirus season in Lulong County was similar to that of other regions in China, but rotavirus serotype G3 was a prevalent strain in Lulong County, which was uncommon and different from the predominant G1 in other places throughout China.
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Affiliation(s)
- J Tang
- Lulong Anti-epidemic Station, Hebei Province 066400, China
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Zhan Z, Ning J. [Study of continuous wavelet transform on detecting and enhancing blood vessel in DSA image]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 2001; 18:238-41. [PMID: 11450543] [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: 02/20/2023]
Abstract
Low contrast is the shortcoming of the image in Digital Subtraction Angiography. This paper presents a new approach for the enhancement of blood volume in DSA image. The wavelet transform was applied to detect blood edges, and then the image contrast was enhanced by the method of contrast stretched. Because the continuous wavelet adopted in this study can detect gray variety in different orientations, the blood vessel edge detected by this algorithm is more precise and complete. Moreover, because the module of image noise by wavelet transform is smaller, the algorithm can protrude blood vessel but restrain noise in background. The processing result showed a very good optical effect of 3 dimensional objects for medical diagnoses.
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Affiliation(s)
- Z Zhan
- Institute of Engineering Information & Technology, Sichuan University, Chengdu 610065
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Heng L, Ning J, Kong F. Facile synthesis of a comb-like mannohexaose: a trimer of the disaccharide repeating unit of the cell-wall mannans of Aphanoascus mephitatus and related species. Carbohydr Res 2001; 331:431-7. [PMID: 11398985 DOI: 10.1016/s0008-6215(01)00059-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
An efficient method for the preparation of a comb-like mannohexaose having alpha-(1-->6) and alpha-(1-->2) linkages has been described using 6-O-acetyl-2-O-benzoyl-3,4-di-O-benzyl-alpha-D-mannopyranosyl trichloroacetimidate as the key glycosyl donor in an 'inverse Schmidt' procedure.
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Affiliation(s)
- L Heng
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China
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Ning J, Kong F. Syntheses and reactions of 5-O-acetyl-1,2-anhydro-3-O-benzyl-alpha-D-ribofuranose and beta-D-lyxofuranose, 5-O-acetyl-1,2-anhydro-3,6-di-O-benzyl- and 1,2-anhydro-5,6-di-O-benzoyl-3-O-benzyl-beta-D-mannofuranose, and 6-O-acetyl-1,2-anhydro-3,4-di-O-benzyl-alpha-D-glucopyranose and -beta-D-talopyranose. Carbohydr Res 2001; 330:165-75. [PMID: 11217969 DOI: 10.1016/s0008-6215(00)00290-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The title compounds 5-O-acetyl-1,2-anhydro-3-O-benzyl-alpha-D-ribofuranose and 5-O-acetyl-1,2-anhydro-3-O-benzyl-beta-D-lyxofuranose, and 6-O-acetyl-1,2-anhydro-3,4-di-O-benzyl-alpha-D-glucopyranose and 6-O-acetyl-1,2-anhydro-3,4-di-O-benzyl-beta-D-talopyranose, and 5-O-acetyl-1,2-anhydro-3,6-di-O-benzyl-beta-D-mannofuranose and 1,2-anhydro-5,6-di-O-benzoyl-3-O-benzyl-beta-D-mannofuranose have each been synthesized from the corresponding 2-O-tosylate and 1-free hydroxyl intermediates by base-initiated intramolecular S(N)2 ring closure in almost quantitative yields. Acetyl and benzoyl groups were not affected in the ring closure reactions. Condensation of 6-O-acetyl-1,2-anhydro-3,4-di-O-benzyl-alpha-D-glucopyranose and 5-O-acetyl-1,2-anhydro-3,6-di-O-benzyl-beta-D-mannofuranose with 1,2:3,4-di-O-isopropylidene-alpha-D-galactopyranose in the presence of ZnCl2 as the catalyst afforded the 1,2-trans-linked 6-O-acetyl-3,4-di-O-benzyl-beta-D-glucopyranosyl-(1-->6)-1,2:3,4-di-O-isopropylidene-alpha-D-galactopyranose and 5-O-acetyl-3,6-di-O-benzyl-alpha-D-mannofuranosyl-(1-->6)-1,2:3,4-di-O-isopropylidene-alpha-D-galactopyranose as the sole products in satisfactory yields, while condensation of 5-O-acetyl-1,2-anhydro-3-O-benzyl-beta-D-lyxofuranose with 3-O-benzyl-1,2-O-isopropylidene-alpha-D-xylofuranose yielded the 1,2-trans-linked 5-O-acetyl-3-O-benzyl-alpha-D-lyxofuranosyl-(1-->5)-3-O-benzyl-1,2-O-isopropylidene-alpha-D-xylofuranose as the sole product in a good yield. The 6-O-acetyl group in the glycosyl donor, 6-O-acetyl-1,2-anhydro-3,4-di-O-benzyl-alpha-D-glucopyranose, did not influence the stereoselectivity of the ring-opening-coupling reaction.
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Affiliation(s)
- J Ning
- Research Center for Eco-Environmental Sciences, Academia Sinica, Beijing, People's Republic of China
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Abstract
It is accepted that to exert cytotoxicity and carcinogenicity chromium VI has to be reduced inside cells. The role of reduced glutathione (GSH) and glutathione reductase in the intracellular reduction of Cr VI was investigated using an immortalized rat osteoblast cell line, FFC. Alkaline phosphatase activity was the index of cytotoxicity measured. To investigate the role of GSH in Cr VI toxicity, GSH levels in the cells were elevated by pretreatment with L-cysteine, and depleted using buthionine sulfoximine (BSO), an inhibitor of GSH synthesis. Intracellular GSH levels were not depleted during the metabolism of Cr VI. Depletion of GSH by BSO caused the cells to be more resistant to the toxicity of Cr VI, indicating that GSH is involved in reduction of the Cr VI. Inhibition of glutathione reductase by carmustine (BCNU) partially protected against the cytotoxicity of Cr VI irrespective of the intracellular GSH. The cytotoxic response was similar if cells were pretreated with BCNU plus L-cysteine, or with BCNU plus BSO, although the GSH levels were markedly different. The results indicate that glutathione reductase plays an important role in the intracellular reduction of Cr VI in osteoblasts.
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Affiliation(s)
- J Ning
- Bioengineering Unit, Strathclyde University, Wolfson Centre, G4 0NW, Glasgow, UK
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Ning J, Kong F. A facile synthesis of 1-(5'-O-acetyl-3'-O-benzyl-beta-D-xylofuranosyl)thymidine: a potentially viable intermediate for the preparation of the anti-AIDS drugs, AZT and D4T. Carbohydr Res 2000; 326:235-9. [PMID: 10903032 DOI: 10.1016/s0008-6215(00)00048-3] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The title compound has been synthesized by smooth condensation of 1,2-anhydro-5-O-acetyl-3-O-benzyl-alpha-D-xylofuranose, obtained from D-xylose through a series of mild and effective reactions, with activated thymine in the absence of catalyst.
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Affiliation(s)
- J Ning
- Research Center for Eco-Environmental Sciences, Academia Sinica, Beijing, PR China
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Ning J, Grant M. Erratum to “Chromium (VI)-induced cytotoxicity to osteoblast-derived cells” [Toxicology in Vitro 13(6) 879–887]. Toxicol In Vitro 2000. [DOI: 10.1016/s0887-2333(00)00020-5] [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] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Ning J, Wong LT, Christoff B, Carmichael FJ, Biro GP. Haemodynamic response following a 10% topload infusion of HemolinkTM in conscious, anaesthetized and treated spontaneously hypertensive rats. Transfus Med 2000; 10:13-22. [PMID: 10760199 DOI: 10.1046/j.1365-3148.2000.00225.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
HemolinkTM (HLK), a haemoglobin-based oxygen carrier (HBOC), is currently undergoing Phase II/III clinical trials in surgical patients. It causes some blood pressure rise in animal and human tests. This study was designed to investigate the systemic haemodynamic response to HemolinkTM in spontaneously hypertensive rats (SHR rats). Conscious or anaesthetized SHR rats and control Wistar Kyoto rats (WKY rats) received either HemolinkTM or homologous plasma as a 10% topload infusion. Some awake animals were pretreated with nifedipine and followed by HLK infusion. In the conscious animal study, HLK induced a greater pressure rise and less bradycardia in SHR rats than in WKY rats. In the anaesthetized animal experiment, HLK-induced pressure rise and bradycardia were similar in both strains and less pronounced than in the conscious animals. In the nifedipine pretreated SHR rats, HLK-induced pressure rise was significantly smaller than that observed in nontreated SHR rats and was not different from that of nontreated WKY rats. The HLK-induced bradycardia was significantly smaller in nifedipine-treated animals than in the nontreated SHR or WKY rats. This study suggests that the pressor effect of HemolinkTM can be attenuated in hypertensive animals with general anaesthesia or treatment with antihypertensive agents.
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Affiliation(s)
- J Ning
- Hemosol Inc., Etobicoke, Ontario, Canada.
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Ning J, Liu S, Cheng S. [Numerical alteration of chromosome 8 in pleural effusions]. Zhonghua Zhong Liu Za Zhi 2000; 22:8-10. [PMID: 11776609] [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: 02/23/2023]
Abstract
OBJECTIVE To study the numerical alteration of chromosome 8 and its application for detecting cancer cells in the pleural effusions. METHODS In situ hybridization with chromosome 8 centromere probe was carried out in 52 patients with pleural effusions. RESULTS In 31 lung cancer patients examined, hyperdiploid chromosome 8 was found in the effusions. The same hyperdiploid of the chromosome was also noted in 4 cases of effusion from adenocarcinoma of breast, mesothelioma and lymphoma. In 15 pleural effusions which were reportedly negative in previous cytological diagnosis, hyperdiploid chromosome 8 was found in 3 cases, and diploid chromosome 8 in another 12 cases by in situ hybridization. After reexemination of the samples from the 3 patients with hyperdiploid chromosome 8, adenocarcinoma cells were found in 2 cases, and the third one was a patient being treated with radiotherapy. Hyperdiploid chromosome 8 also existed in the pleural effusions from 2 cases suspicious of adenocarcinoma. CONCLUSION Hyperdiploid chromosome 8 may be a useful marker to ascertain the malignant nature of pleural effusion.
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Affiliation(s)
- J Ning
- Cancer Institute (Hospital), Chinese Academy Medical Science, Peking Union Medical College, Beijing 100021, China
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Koch R, Moseley K, Ning J, Romstad A, Guldberg P, Guttler F. Long-term beneficial effects of the phenylalanine-restricted diet in late-diagnosed individuals with phenylketonuria. Mol Genet Metab 1999; 67:148-55. [PMID: 10356314 DOI: 10.1006/mgme.1999.2863] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.2] [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: 11/22/2022]
Abstract
The potential benefits to society of treating late-diagnosed mentally retarded persons with phenylketonuria were investigated. In order to ascertain the effects of late dietary intervention, the charts of 124 adults with PKU seen in the metabolic service at the Childrens Hospital of Los Angeles were reviewed. Fifty-nine were diagnosed later than 3 months of age and were over the age of 18 years. They were followed up with medical, psychological, and nutritional assessments. Genotyping was also performed. Twenty-eight have remained on a phenylalanine-restricted diet during the intervening years. All but 3 of the 28 late-diagnosed PKU persons who remained on a restricted diet showed significant intellectual improvement. Seven are able to attend college, 9 are employed, and 12 are attending workshops and/or day care programs. The result of treatment with the phenylalanine-restricted diet was that these individuals could participate in society and were able to arrest the neurodegenerative course characteristic of persons with mutations classified as severe in the phenylalanine hydroxylase gene. We conclude that society could benefit substantially by providing a phenylalanine-restricted diet for late-diagnosed mentally retarded persons with phenylketonuria. Eighteen of 28 such persons who otherwise would have required residential care are living independently.
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Affiliation(s)
- R Koch
- Department of Pediatrics, Research Institute, Childrens Hospital of Los Angeles, California 90027, USA.
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