1
|
Huang X, Wu L, Ouyang Q, Huang Y, Hong L, Liu S, Yang K, Ning D, Tan CC. Neutrophil CD64 index as a new early predictive biomarker for infected pancreatic necrosis in acute pancreatitis. J Transl Med 2024; 22:218. [PMID: 38424643 PMCID: PMC10905911 DOI: 10.1186/s12967-024-04901-9] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 01/14/2024] [Indexed: 03/02/2024] Open
Abstract
OBJECTIVE Infectious pancreatic necrosis (IPN) is a serious complication of acute pancreatitis, and early recognition and timely intervention are the keys to improving clinical outcomes. The purpose of this study was to investigate the predictive capacity of the neutrophil CD64 index (nCD64 index) on IPN in patients with acute pancreatitis METHODS: This study comprises two independent cohorts: the training cohort consisted of 202 patients from Hunan Provincial People's Hospital, and the validation cohort consisted of 100 patients from Changsha Central Hospital. Peripheral blood samples were collected on the day of admission and on the 3rd, 5th, 7th, and 10th days of hospitalization, and the nCD64 index was detected by flow cytometry. Additionally, relevant clinical characteristics and laboratory biomarkers were collected and analyzed. RESULTS We observed that nCD64 index on admission was significantly higher in the IPN group than Non-IPN group (p < 0.001). In the training cohort, a higher occurrence rate of IPN was observed in the high nCD64 index group compared to the moderate and low nCD64 index group (p < 0.001). Further analysis showed that nCD64 index was significant positive correlated with the incidence rate of IPN (p < 0.001, correlation coefficient = 0.972). Furthermore, logistic regression analysis showed that high expression of the nCD64 index on admission was a risk factor for the occurrence of IPN (OR = 2.971, p = 0.038). We further found that the nCD64 index of IPN patients was significantly higher than the Non-IPN patients on the days 1, 3, and 5 after admission, and the nCD64 index of IPN patients before and after the onset (p < 0.05). At the same time, this study revealed that the nCD64 index on admission showed good predictive efficacy for IPN (AUC = 0.859, sensitivity = 80.8%, specificity = 87.5%), which was comparable to APACHE II score. And this finding was further validated in an independent cohort of 100 participants (AUC = 0.919, Sensitivity = 100.0%, Specificity = 76.6%). CONCLUSION This study demonstrated the clinical value of nCD64 index in patients with IPN patients for the first time through two independent cohort studies. The nCD64 index can be used as an early prediction and risk assessment tool for the occurrence of IPN, contributing to the improvement of patient outcomes and efficiency of medical resource allocation.
Collapse
Affiliation(s)
- Xiangping Huang
- Department of Clinical Laboratory, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), 61 Jiefang Road, Changsha, 410005, Hunan, People's Republic of China
| | - Ling Wu
- Department of Clinical Laboratory, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), 61 Jiefang Road, Changsha, 410005, Hunan, People's Republic of China
| | - Qianhui Ouyang
- Department of Clinical Laboratory, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), 61 Jiefang Road, Changsha, 410005, Hunan, People's Republic of China
| | - Ying Huang
- Department of Emergency, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, Hunan, China
| | - Lanhui Hong
- Department of Clinical Laboratory, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), 61 Jiefang Road, Changsha, 410005, Hunan, People's Republic of China
| | - Sixiang Liu
- Department of Emergency, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, Hunan, China
| | - Kongzhi Yang
- Department of Emergency Medical, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, Hunan, China
| | - Ding Ning
- Department of Emergency Medical, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, Hunan, China
| | - Chao Chao Tan
- Tumor Immunity Research Center of Hunan Provincial Geriatric Institute (Hunan Provincial People's Hospital), Changsha, Hunan, China.
- Department of Clinical Laboratory, Hunan Provincial People's Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, Hunan, China.
| |
Collapse
|
2
|
Yuxuan T, Xin C, Ning D, Hong L. Removal of BTEX from water system by synergistic flocculation of biosurfactant and iron salt. Sci Total Environ 2023:164371. [PMID: 37268127 DOI: 10.1016/j.scitotenv.2023.164371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/19/2023] [Accepted: 05/19/2023] [Indexed: 06/04/2023]
Abstract
The adsorption micelle flocculation (AMF) effect of biosurfactants (rhamnolipids, RL) and polymerized ferric sulfate (PFS) on the removal of low molecular weight benzoic acid (benzoic acid and p-methyl benzoic acid) and phenol (2,4-dichlorophenol and bisphenol A) organics was investigated. The coexistence system of RL and organic matter was constructed, and the effects of pH, Fe concentration, RL concentration and initial concentration of organic matter on the removal effect were discussed. For benzoic acid and p-methyl benzoic acid, the increase of Fe and RL concentrations was beneficial to their removal rates under weak acidic conditions, and the removal rate of the coexistence system was higher for methyl benzoic acid (87.7 %) than for benzoic acid (78.6 %), which might be attributed to the stronger hydrophobicity of the coexistence system for methyl benzoic acid; while for 2,4-dichlorophenol and bisphenol A, pH and Fe concentration changes had less effect on the removal rate, but the increase in RL concentration was favorable to the removal rate, which was 93.1 % and 86.7 % for BPA and 2,4-dichlorophenol, respectively. These findings provide feasible ideas and directions for the removal of organics by AMF using biosurfactants.
Collapse
Affiliation(s)
- Tian Yuxuan
- School of Environmental Science and Engineering, Jiangsu Key Laboratory of Environmental Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Chen Xin
- School of Environmental Science and Engineering, Jiangsu Key Laboratory of Environmental Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Ding Ning
- School of Ecological and Environment, Beijing Technology and Business University, Beijing 100048, China
| | - Liu Hong
- School of Environmental Science and Engineering, Jiangsu Key Laboratory of Environmental Science and Technology, Suzhou University of Science and Technology, Suzhou 215009, China.
| |
Collapse
|
3
|
Wu L, Huang X, Ouyang Q, Liu W, Liu S, Huang Y, Peng Y, Ning D, Tan C. Serum metabolomics study for acute attack of chronic pancreatitis. Clin Chim Acta 2023; 541:117251. [PMID: 36775008 DOI: 10.1016/j.cca.2023.117251] [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: 12/30/2022] [Revised: 02/02/2023] [Accepted: 02/07/2023] [Indexed: 02/12/2023]
Abstract
BACKGROUND & AIMS Chronic pancreatitis (CP) is an inflammatory disease characterized by irreversible changes. However, acute CP attacks can lead to various complications and affect patient prognosis. Therefore, this study aimed to identify reliable candidate metabolic biomarkers for diagnosing acute CP attacks and complement candidate diagnostic markers for CP. METHODS A total of 139 serum specimens were prospectively included in three consecutive exploratory, identification, and validation studies. All samples were analyzed for candidate diagnostic biomarkers and metabolic pathways using a liquid chromatography-mass spectrometer. RESULTS Serum metabolic profiles differed between patients with CP and non-pancreatic disease controls, and 239 potential metabolic biomarkers for diagnosing CP were identified. Based on identification and validation studies, Diacylglycerol(16:0/18:4), 16-F1-PhytoP, N-(hexacosanoyl)-tetradecasphing-4-enine, carnosic acid, and Auxin b were identified as biomarkers for distinguishing acute attacks from non-acute attacks in patients with CP. The area under the curve of the Diacylglycerol(16:0/18:4) was 0.969 (95% confidence interval, 0.869-1) in the validation study. CONCLUSIONS To the best of our knowledge, this is the first prospective cohort study to identify and validate a metabolomic signature in serum for diagnosing acute attacks of CP. In addition, our study identified 239 potential biomarkers for CP diagnosis.
Collapse
Affiliation(s)
- Ling Wu
- Department of Clinical Laboratory, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, Hunan, China
| | - Xiangping Huang
- Department of Clinical Laboratory, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, Hunan, China
| | - Qianhui Ouyang
- Department of Clinical Laboratory, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, Hunan, China
| | - Wen Liu
- Department of Pharmacy, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, Hunan, China
| | - Sixiang Liu
- Department of Emergency, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, Hunan, China
| | - Ying Huang
- Department of Emergency, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, Hunan, China
| | - Ya Peng
- Department of Gastroenterology, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, Hunan, China
| | - Ding Ning
- Department of Emergency Medical, The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, Hunan, China
| | - Chaochao Tan
- Department of Clinical Laboratory, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, Hunan, China.
| |
Collapse
|
4
|
Yue H, Wang P, Zhang L, Ning D, Cai W, Wang Y, Wang J. Sialoglycoproteins isolated from the eggs of Carassius auratus alleviates CCL4-induced liver injury via downregulation of the IRE-α/NF-κB signaling pathway. J Food Biochem 2021; 45:e13964. [PMID: 34730246 DOI: 10.1111/jfbc.13964] [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: 07/12/2021] [Revised: 09/18/2021] [Accepted: 09/23/2021] [Indexed: 11/28/2022]
Abstract
Chemical liver injury is a common cause of liver disease primarily characterized by oxidative stress and inflammation. Sialoglycoproteins isolated from the eggs of Carassius auratus (Ca-SGP) have been proved to exhibit the antioxidant effect. However, the effect of Ca-SGP on liver injury remains unclear. Thus, this study was aimed to determine the effect of Ca-SGP on CCL4-induced chronic chemical liver injury and explore the underlying molecular mechanism. Results showed that Ca-SGP mitigated the elevated levels of serum alanine aminotransferase and aspartate aminotransferase, inhibited the systemic oxidative stress, and reduced the levels of pro-inflammatory factors TNF-α and IL-1β. Histologic results showed that Ca-SGP supplements alleviated hepatocyte necrosis and liver macrophage infiltration. Further, Ca-SGP supplement decreased endoplasmic reticulum stress-related proteins expression, including BiP, IRE-α, p-IRE-α, and TRAF2, and further inhibited the trigger of the NF-κB pathway. In summary, Ca-SGP might be a novel agent for liver injury treatment, and its potential mechanism was related to the inhibition of liver inflammation induced by the endoplasmic reticulum. PRACTICAL APPLICATION: The fish egg is an important by-product in fish processing. Carassius auratus is a common freshwater fish with large catches and low prices. However, the eggs of C. auratus are usually direct discard or processed into salted roe products, and the quality and value of these salted products are unsatisfactory. In this current study, we confirmed that sialoglycoproteins isolated from the C. auratus eggs have the potential for the treatment of liver injury and determined that its mechanism is related to the endoplasmic reticulum and inflammation, which put forward a new idea for solving the by-product of fish processing.
Collapse
Affiliation(s)
- Hao Yue
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Peng Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Lei Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Ding Ning
- Malvern College Qingdao, Qingdao, China
| | - Weizhen Cai
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Yanchao Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Jingfeng Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| |
Collapse
|
5
|
Xiaoling Y, Li Z, ShuQiang L, Shengchao M, Anning Y, Ning D, Nan L, Yuexia J, Xiaoming Y, Guizhong L, Yideng J. Correction: Hyperhomocysteinemia in ApoE-/- Mice Leads to Overexpression of Enhancer of Zeste Homolog 2 via miR-92a Regulation. PLoS One 2020; 15:e0240762. [PMID: 33045026 PMCID: PMC7549832 DOI: 10.1371/journal.pone.0240762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
|
6
|
Ni M, Gu K, Hassan B, Ning D, Zheng Y, Qi Y, Xu Y. Effect of oviposition by Bactrocera dorsalis on the antioxidant activity of orange juice. BRAZ J BIOL 2019; 80:641-647. [PMID: 31644657 DOI: 10.1590/1519-6984.218661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 03/06/2019] [Indexed: 11/22/2022] Open
Abstract
Among fruits and fruit products, oranges and orange juice are the most widely consumed worldwide. However, the effects of pest infestation of oranges on the quality of orange juice are not yet known. To evaluate the effect of the oriental fruit fly Bactrocera dorsalis on the antioxidant activity of orange juice, we measured changes in the vitamin C (Vc) concentration, total phenol content, and antioxidant activity of orange juice after the introduction of fruit fly eggs. Ten days after the eggs were introduced (larvae removed), the concentration of Vc in orange juice was 18.65 µg/mL, which was 9.16 µg/mL lower than that measured in healthy orange juice. In addition, the total phenol content decreased by 46.519 mg Gallic Acid Equivalents (GAE)/g to 9.748 mg GAE/g. Furthermore, the free-radical scavenging activity decreased from 22.297% to 5.393%. Correlation analysis indicated significant correlations between Vc concentration, total phenol content, and antioxidant activity of orange juice after B. dorsalis infestation. The decrease in Vc concentration, total phenol content and free-radical scavenging activity indicated that B. dorsalis changed the quality of orange juice by affecting the antioxidant activity of the juice after the oranges were infested.
Collapse
Affiliation(s)
- M Ni
- Department of Entomology, South China Agricultural University, Guangzhou, China
| | - K Gu
- Department of Entomology, South China Agricultural University, Guangzhou, China
| | - B Hassan
- Department of Entomology, South China Agricultural University, Guangzhou, China
| | - D Ning
- Department of Entomology, South China Agricultural University, Guangzhou, China
| | - Y Zheng
- Department of Entomology, South China Agricultural University, Guangzhou, China
| | - Y Qi
- Department of Entomology, South China Agricultural University, Guangzhou, China
| | - Y Xu
- Department of Entomology, South China Agricultural University, Guangzhou, China
| |
Collapse
|
7
|
Zou C, Sheng W, Huai D, Cao J, Su M, Ning D, Xue R, Wang Y, Huang M, Zhang X. Comparison between auto-trilevel and bilevel positive airway pressure ventilation for treatment of patients with concurrent obesity hypoventilation syndrome and obstructive sleep apnea syndrome. Sleep Breath 2018; 23:735-740. [PMID: 30426457 DOI: 10.1007/s11325-018-1750-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 04/12/2018] [Revised: 10/31/2018] [Accepted: 11/06/2018] [Indexed: 12/19/2022]
Abstract
PURPOSE Our study aims to compare the difference in clinical efficacy between auto-trilevel positive airway pressure (auto-trilevel PAP) ventilator and conventional fixed bilevel positive airway pressure (BiPAP) ventilator for obesity hypoventilation syndrome (OHS) patients with coexisting moderate or severe obstructive sleep apnea hypopnea syndrome (OSAHS). METHODS Twenty-three OHS patients with moderate or severe OSAHS enrolled between January 2015 and September 2017 underwent ventilation by three different modes of positive airway pressure (PAP) for 8 h per night. A single variable mode was applied at the first night followed by two nights when no PAP therapy was carried out as a washout period between each mode. The inspiratory positive airway pressure (IPAP) decided by PaCO2 was consistently used for modes 1, 2, and 3. In mode 1, the expiratory positive airway pressure (EPAP) issued by BiPAP was decided by the minimal PAP levels for cessation of snoring. However, in mode 2, the EPAP was fixed at 3 cmH2O higher than this value. With the use of auto-trilevel PAP in mode 3, the EPAP was set to initially match that of mode 1 but the end of EPAP (EEPAP) was automatically regulated to be elevated according to upper airway patency condition. We also compared the following parameters including apnea hypopnea index (AHI), minimal SpO2 (miniSpO2), arousal index, and sleep efficiency during sleep; PaCO2 in the morning and Epword sleepiness score (ESS) at daytime were measured prior to and during PAP treatment as well as between three selected PAP modes. RESULTS Compared with the parameters before ventilation therapies, all three variable modes of ventilation were associated with a higher nocturnal miniSpO2 and sleep efficiency (all P < 0.01). Among the three variable modes, mode 3 resulted in not only the lowest arousal index and daytime ESS but also the highest sleep efficiency. Compared to mode 1, mode 2 demonstrated a significantly reduced AHI and an elevated miniSpO2 and morning PaCO2 (all P < 0.05), while mode 3 was associated with a decreased AHI, an increased miniSpO2 (all P < 0.05), and no statistical change of PaCO2 following the end of PAP treatment (P > 0.05). Comparison between mode 2 and mode 3 revealed that mode 3 had a significantly lower PaCO2 (P < 0.05), but displayed no remarkable changes of AHI and miniSpO2 (all P > 0.05). CONCLUSION Compared to fixed BiPAP ventilation, auto-trilevel PAP ventilation could more effectively correct hypercapnia, achieve lower index of nocturnal apnea and hypopnea, more improved sleep quality, and lower daytime sleepiness score. Auto-trilevel PAP ventilation is therefore more efficacious than conventional BiPAP ventilation in non-invasive ventilation therapy for OHS patients with concurrent moderate or severe OSAHS.
Collapse
Affiliation(s)
- Chunfang Zou
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital with Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China
| | - Weiwei Sheng
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital with Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China
| | - De Huai
- Department of Otorhinolaryngology, Xuzhou Medical University Affiliated Huai'an Hospital and Huai'an Second People's Hospital, Huai'an, 223002, Jiangsu, China
| | - Juan Cao
- Department of Respirology, Wuxi People's Hospital, 299 Qingyang Road, Wuxi, 214001, Jiangsu, China
| | - Mei Su
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital with Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China
| | - Ding Ning
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital with Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China
| | - Rong Xue
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital with Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China
| | - Yanli Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital with Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China
| | - Mao Huang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital with Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China
| | - Xilong Zhang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital with Nanjing Medical University, 300 Guangzhou Road, Nanjing, 210029, China.
| |
Collapse
|
8
|
Lübke M, Ning D, Armer CF, Howard D, Brett DJ, Liu Z, Darr JA. Evaluating the Potential Benefits of Metal Ion Doping in SnO 2 Negative Electrodes for Lithium Ion Batteries. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.05.029] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
9
|
Xiaoling Y, Li Z, ShuQiang L, Shengchao M, Anning Y, Ning D, Nan L, Yuexia J, Xiaoming Y, Guizhong L, Yideng J. Hyperhomocysteinemia in ApoE-/- Mice Leads to Overexpression of Enhancer of Zeste Homolog 2 via miR-92a Regulation. PLoS One 2016; 11:e0167744. [PMID: 27936205 PMCID: PMC5147974 DOI: 10.1371/journal.pone.0167744] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 11/19/2016] [Indexed: 12/11/2022] Open
Abstract
Hyperhomocysteinemia (HHcy) is an independent risk factor for cardiovascular diseases, such as atherosclerosis. HHcy promotes atherogenesis by modifying the histone methylation patterns and miRNA regulation. In this study, we investigated the effects of homocysteine (Hcy) on the expression of enhancer of zeste homolog 2 (EZH2), and tested our hypothesis that Hcy-induced atherosclerosis is mediated by increased EZH2 expression, which is regulated by miR-92a. The levels of EZH2 and H3K27me3 were increased in the aorta of ApoE-/- mice fed a high-methionine diet for 16 weeks, whereas miR-92a expression was decreased. Over-expression of EZH2 increased H3K27me3 level and the accumulation of total cholesterol and triglycerides in the foam cells. Furthermore, upregulation of miR-92a reduced EZH2 expression in the foam cells. These data suggested that EZH2 plays a key role in Hcy-mediated lipid metabolism disorders, and that miR-92a may be a novel therapeutic target in Hcy-related atherosclerosis.
Collapse
Affiliation(s)
- Yang Xiaoling
- Basic Medical School, Ningxia Medical University, Key Laboratory of Cardio-Cerebro-Vascular Diseases, Ningxia Medical University, Yinchuan, Ningxia, China
- Institution of Medical Science of Ningxia, Yinchuan, Ningxia, China
| | - Zhao Li
- Basic Medical School, Ningxia Medical University, Key Laboratory of Cardio-Cerebro-Vascular Diseases, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Li ShuQiang
- Basic Medical School, Ningxia Medical University, Key Laboratory of Cardio-Cerebro-Vascular Diseases, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Ma Shengchao
- Basic Medical School, Ningxia Medical University, Key Laboratory of Cardio-Cerebro-Vascular Diseases, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Yang Anning
- Basic Medical School, Ningxia Medical University, Key Laboratory of Cardio-Cerebro-Vascular Diseases, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Ding Ning
- Basic Medical School, Ningxia Medical University, Key Laboratory of Cardio-Cerebro-Vascular Diseases, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Li Nan
- Basic Medical School, Ningxia Medical University, Key Laboratory of Cardio-Cerebro-Vascular Diseases, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Jia Yuexia
- Basic Medical School, Ningxia Medical University, Key Laboratory of Cardio-Cerebro-Vascular Diseases, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Yang Xiaoming
- Basic Medical School, Ningxia Medical University, Key Laboratory of Cardio-Cerebro-Vascular Diseases, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Li Guizhong
- Basic Medical School, Ningxia Medical University, Key Laboratory of Cardio-Cerebro-Vascular Diseases, Ningxia Medical University, Yinchuan, Ningxia, China
| | - Jiang Yideng
- Basic Medical School, Ningxia Medical University, Key Laboratory of Cardio-Cerebro-Vascular Diseases, Ningxia Medical University, Yinchuan, Ningxia, China
- * E-mail:
| |
Collapse
|
10
|
Bo Z, Bin G, Jing W, Cuifang W, Liping A, Jinglin M, Jin J, Xiaoyi T, Cong C, Ning D, Yayi X. Fluid shear stress promotes osteoblast proliferation via the Gαq-ERK5 signaling pathway. Connect Tissue Res 2016; 57:299-306. [PMID: 27115838 DOI: 10.1080/03008207.2016.1181063] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Fluid shear stress (FSS) is a ubiquitous mechanical stimulus that potently promotes osteoblast proliferation. Previously, we reported that extracellular signal-regulated kinase 5 (ERK5) is essential for FSS-induced osteoblast proliferation. However, the precise mechanism by which FSS promotes osteoblast proliferation via ERK5 activation is poorly understood. The aim of this study was to determine the critical role of Gαq in FSS-induced ERK5 phosphorylation and osteoblast proliferation, as well as the downstream targets of the Gαq-ERK5 pathway. MC3T3-E1 cells were transfected with 50 nM Gαq siRNA, treated with 5 mM XMD8-92 (a highly selective inhibitor of ERK5 activity), and/or exposed to FSS (12 dyn/cm(2)). Cell proliferation was evaluated using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The protein expression levels of Gαq, P-ERK5, ERK5, Cyclin B1, and CDK1 were analyzed by Western blot. Physiological FSS exposure for 60 min remarkably promoted MC3T3-E1 cell proliferation, however, this effect was suppressed by siRNA-mediated Gαq knockdown or inhibition of ERK5 activity by XMD8-92 treatment, suggesting that Gαq and ERK5 might modulate FSS-increased osteoblast proliferation. Furthermore, ERK5 phosphorylation was dramatically inhibited by Gαq siRNA. In addition, our study further revealed that FSS treatment of MC3T3-E1 cells for 60 min markedly upregulated the protein expression levels of Cyclin B1 and CDK1, and this increased expression was predominantly blocked by Gαq siRNA or XMD8-92 treatment. We propose that FSS acts on the Gαq-ERK5 signaling pathway to upregulate Cyclin B1 and CDK1 expression, thereby resulting in MC3T3-E1 cell proliferation. Thus, the Gαq-ERK5 signaling pathway may provide useful information regarding the treatment of bone metabolic disease.
Collapse
Affiliation(s)
- Zhang Bo
- a Department of Orthopedics , The Second Hospital of Lanzhou University , Lanzhou , China.,b Key Laboratory of Orthopedics of Gansu Province, The Second Hospital of Lanzhou University , Lanzhou , China
| | - Geng Bin
- a Department of Orthopedics , The Second Hospital of Lanzhou University , Lanzhou , China.,b Key Laboratory of Orthopedics of Gansu Province, The Second Hospital of Lanzhou University , Lanzhou , China
| | - Wang Jing
- a Department of Orthopedics , The Second Hospital of Lanzhou University , Lanzhou , China.,b Key Laboratory of Orthopedics of Gansu Province, The Second Hospital of Lanzhou University , Lanzhou , China
| | - Wang Cuifang
- a Department of Orthopedics , The Second Hospital of Lanzhou University , Lanzhou , China.,b Key Laboratory of Orthopedics of Gansu Province, The Second Hospital of Lanzhou University , Lanzhou , China
| | - An Liping
- a Department of Orthopedics , The Second Hospital of Lanzhou University , Lanzhou , China.,b Key Laboratory of Orthopedics of Gansu Province, The Second Hospital of Lanzhou University , Lanzhou , China
| | - Ma Jinglin
- a Department of Orthopedics , The Second Hospital of Lanzhou University , Lanzhou , China.,b Key Laboratory of Orthopedics of Gansu Province, The Second Hospital of Lanzhou University , Lanzhou , China
| | - Jiang Jin
- a Department of Orthopedics , The Second Hospital of Lanzhou University , Lanzhou , China.,b Key Laboratory of Orthopedics of Gansu Province, The Second Hospital of Lanzhou University , Lanzhou , China
| | - Tan Xiaoyi
- a Department of Orthopedics , The Second Hospital of Lanzhou University , Lanzhou , China.,b Key Laboratory of Orthopedics of Gansu Province, The Second Hospital of Lanzhou University , Lanzhou , China
| | - Chen Cong
- a Department of Orthopedics , The Second Hospital of Lanzhou University , Lanzhou , China.,b Key Laboratory of Orthopedics of Gansu Province, The Second Hospital of Lanzhou University , Lanzhou , China
| | - Ding Ning
- a Department of Orthopedics , The Second Hospital of Lanzhou University , Lanzhou , China.,b Key Laboratory of Orthopedics of Gansu Province, The Second Hospital of Lanzhou University , Lanzhou , China
| | - Xia Yayi
- a Department of Orthopedics , The Second Hospital of Lanzhou University , Lanzhou , China.,b Key Laboratory of Orthopedics of Gansu Province, The Second Hospital of Lanzhou University , Lanzhou , China
| |
Collapse
|
11
|
Abdollahi MR, Hosking BJ, Ning D, Ravindran V. Influence of Palm Kernel Meal Inclusion and Exogenous Enzyme Supplementation on Growth Performance, Energy Utilization, and Nutrient Digestibility in Young Broilers. Asian-Australas J Anim Sci 2016; 29:539-48. [PMID: 26949955 PMCID: PMC4782089 DOI: 10.5713/ajas.15.0224] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 06/08/2015] [Accepted: 07/30/2015] [Indexed: 11/27/2022]
Abstract
The objective of the present study was to investigate the influence of palm kernel meal (PKM) inclusion and exogenous enzyme supplementation on growth performance, nitrogen-corrected apparent metabolizable energy (AMEn), coefficient of apparent ileal digestibility (CAID) and total tract retention of nutrients in young broilers fed corn-based diets. Four inclusion levels of PKM (no PKM [PKM0], 8% [PKM8], 16% [PKM16], and 24% [PKM24]) and two enzyme additions were evaluated in a 4×2 factorial arrangement of treatments. A total of 384, one-d-old male broilers (Ross 308) were individually weighed and allocated to 48 cages (eight broilers/cage), and cages were randomly assigned to eight dietary treatments. Results indicated that the inclusion of 8% and 16% PKM increased (p<0.05) the weight gain compared to the PKM0 diet. Birds fed the PKM8 diets had the highest (p<0.05) feed intake. Weight gain and feed intake were severely reduced (p<0.05) by feeding the PKM24 diet. Enzyme supplementation increased weight gain (p<0.05), independent of PKM inclusion level. In PKM0 and PKM8 diets, enzyme addition significantly (p<0.05) lowered feed conversion ratio (FCR); whereas enzyme addition had no effect on FCR of birds fed PKM16 and PKM24 diets. In PKM0 and PKM16 diets, enzyme addition significantly (p<0.05) increased CAID of nitrogen and energy but had no effect in the PKM8 and PKM24 diets. Inclusion of PKM into the basal diet, irrespective of inclusion level, enhanced (p<0.05) starch and fat digestibility. Inclusion of PKM at 16% and 24% resulted in similar CAID of neutral detergent fiber (NDF) but higher (p<0.05) than that of the PKM0 and PKM8 diets. Enzyme addition, regardless of the level of PKM inclusion, significantly (p<0.05) increased CAID of NDF. There was a significant (p<0.05) decrease in AMEn with PKM inclusion of 24%. The present data suggest that inclusion of PKM in broiler diets could be optimized if PKM-containing diets are formulated based on digestible amino acid contents and supplemented with exogenous enzymes. If amino acid digestibility and AME of PKM considered in the formulation, it can be included in broiler diets up to 16% with no deleterious effects on growth performance.
Collapse
Affiliation(s)
- M R Abdollahi
- AsiaPac Biotechnology Co. Ltd., Dongguan City, Guangdong 523808, China
| | - B J Hosking
- AsiaPac Biotechnology Co. Ltd., Dongguan City, Guangdong 523808, China
| | - D Ning
- AsiaPac Biotechnology Co. Ltd., Dongguan City, Guangdong 523808, China
| | - V Ravindran
- AsiaPac Biotechnology Co. Ltd., Dongguan City, Guangdong 523808, China
| |
Collapse
|
12
|
González‐Bergonzoni I, Vidal N, Wang B, Ning D, Liu Z, Jeppesen E, Meerhoff M. General validation of formalin‐preserved fish samples in food web studies using stable isotopes. Methods Ecol Evol 2014. [DOI: 10.1111/2041-210x.12313] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ivan González‐Bergonzoni
- Department of Bioscience and the Arctic Research Centre Aarhus University Vejlsøvej, 25, Silkeborg 8600 Jutland Denmark
- Sino‐Danish Centre for Education and Research (SDC) the University of Chinese Academy of Sciences (UCAS) Room N501, UCAS Teaching Building, Zhongguancun Campus, Zhongguancun South 1st Alley, Haidian District Beijing 100190 China
- Departamento de Ecología Teórica y Aplicada CURE‐Facultad de Ciencias Universidad de la República Brunett, s/n, esq. Chiossi, Maldonado 20000 Uruguay
| | - Nicolás Vidal
- Department of Bioscience and the Arctic Research Centre Aarhus University Vejlsøvej, 25, Silkeborg 8600 Jutland Denmark
- Sino‐Danish Centre for Education and Research (SDC) the University of Chinese Academy of Sciences (UCAS) Room N501, UCAS Teaching Building, Zhongguancun Campus, Zhongguancun South 1st Alley, Haidian District Beijing 100190 China
- Departamento de Ecología Teórica y Aplicada CURE‐Facultad de Ciencias Universidad de la República Brunett, s/n, esq. Chiossi, Maldonado 20000 Uruguay
| | - Beixin Wang
- Department of Entomology Nanjing Agricultural University Weigang Road, No 1, Nanjing 210095, Jiangsu Province China
| | - Ding Ning
- Department of Entomology Nanjing Agricultural University Weigang Road, No 1, Nanjing 210095, Jiangsu Province China
| | - Zhengwen Liu
- Nanjing Institute for Geography and Limnology (NIGLAS) Chinese Academy of Sciences (CAS) East Beijing Road 73, Nanjing 210008, Jiangsu Province China
| | - Erik Jeppesen
- Department of Bioscience and the Arctic Research Centre Aarhus University Vejlsøvej, 25, Silkeborg 8600 Jutland Denmark
- Sino‐Danish Centre for Education and Research (SDC) the University of Chinese Academy of Sciences (UCAS) Room N501, UCAS Teaching Building, Zhongguancun Campus, Zhongguancun South 1st Alley, Haidian District Beijing 100190 China
| | - Mariana Meerhoff
- Department of Bioscience and the Arctic Research Centre Aarhus University Vejlsøvej, 25, Silkeborg 8600 Jutland Denmark
- Departamento de Ecología Teórica y Aplicada CURE‐Facultad de Ciencias Universidad de la República Brunett, s/n, esq. Chiossi, Maldonado 20000 Uruguay
| |
Collapse
|
13
|
Ning D, Yuan JM, Wang YW, Peng YZ, Guo YM. The net energy values of corn, dried distillers grains with solubles and wheat bran for laying hens using indirect calorimetry method. Asian-Australas J Anim Sci 2014; 27:209-16. [PMID: 25049945 PMCID: PMC4093209 DOI: 10.5713/ajas.2013.13243] [Citation(s) in RCA: 12] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Revised: 08/23/2013] [Accepted: 07/12/2013] [Indexed: 11/29/2022]
Abstract
The present study was conducted to estimate the NE values of corn, dried distillers grains with solubles (DDGS) and wheat bran (WB) for laying hens based on an indirect calorimetry method and nitrogen balance measurements. A total of 576 twenty-eight-wk-old Dwarf Pink-shell laying hens were randomly assigned to four groups fed a basal diet (BD) or a combination of BD with 50% corn or 20% DDGS or 20% WB, with four replicates each. After a 7-d adaptation period, each replicate with 36 hens were kept in one of the two respiration chambers to measure the heat production (HP) for 6 days during the feeding period and subsequent 3-d fasting. The equilibrium fasting HP (FHP) provided an estimate of NE requirements for maintenance (NEm). The NE values of test feedstuffs was estimated using the difference method. Results showed that the heat increment that contributed 35.34 to 37.85% of ME intake was not influenced by experimental diets (p>0.05) when expressed as Mcal/kg of DM feed intake. Lighting increased the HP in hens in an fed-state. The FHP decreased over time (p<0.05) with the lowest value determined on the third day of starvation. No significant difference between treatments was found on FHP of d 3 (p>0.05). The estimated AME, AMEn, and NE values were 3.46, 3.44 and 2.25 Mcal/kg DM for corn, 3.11, 2.79, and 1.80 Mcal/kg DM for DDGS, 2.14, 2.10, and 1.14 Mcal/kg DM for WB, respectively. The net availability of AME of corn tended to be numerically higher than DDGS and WB (p = 0.096). In conclusion, compared with corn, the energy values of DDGS and WB were overestimated when expressed on an AME basis.
Collapse
Affiliation(s)
- D Ning
- State Key lab of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - J M Yuan
- State Key lab of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Y W Wang
- State Key lab of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Y Z Peng
- State Key lab of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Y M Guo
- State Key lab of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| |
Collapse
|
14
|
Ning D, Guo YM, Wang YW, Peng YZ. Earlier Metabolizable Energy Intake Level Influences Heat Production during a Following 3-Day Fast in Laying Hens. Asian-Australas J Anim Sci 2014; 26:558-63. [PMID: 25049823 PMCID: PMC4093384 DOI: 10.5713/ajas.2012.12566] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Revised: 12/11/2012] [Accepted: 12/01/2012] [Indexed: 11/27/2022]
Abstract
The present study was conducted to estimate energy requirements for maintenance in laying hens by using indirect calorimetry and energy balance. A total of 576 28-wk-old Nongda-3 laying hens with dwarf gene were randomly allocated into four ME intake levels (86.57, 124.45, 166.63 and 197.20 kcal/kg body weight (BW)(0.75) per d) with four replicates each. After a 4 d adaptation period, 36 hens from one replicate were maintained in one of the two respiration chambers to measure the heat production (HP) for 3 d during the feeding period and subsequent 3 d fast. Metabolizable energy (ME) intake was partitioned between heat increment (HI), HP associated with activity, fasting HP (FHP) and retained energy (RE). The equilibrium FHP may provide an estimate of NE requirements for maintenance (NEm). Results showed that HP, HI and RE in the fed state increased with ME intake level (p<0.05). Based on the regression of HP on ME intake, the estimated ME requirements for maintenance (MEm) was 113.09 kcal/kg BW(0.75) per d when ME intake equals HP. The FHP was decreased day by day with the lowest value on the third day of starvation. Except for lowest ME intake level, the FHP increased with ME intake level on the first day of starvation (p<0.05). The FHP at the two higher ME intake levels were greater than that at the two lower ME intake levels (p<0.05) but no difference was found between the two lower ME intake levels. Linear regression of HP from the fed state to zero ME intake yielded a value of 71.02 kcal/kg BW(0·75) per d, which is higher than the extrapolated FHP at zero ME intake (60.78, 65.23 and 62.14 kcal/kg BW(0.75) per d for the first, second and third day of fasting, respectively). Fasting time, lighting schedules, calculation methods and duration of adaptation of hens to changes in ME intake level should be properly established when using indirect calorimetry technique to estimate dietary NE content, MEm and NEm for laying hens.
Collapse
Affiliation(s)
- D Ning
- State Key lab of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Y M Guo
- State Key lab of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Y W Wang
- State Key lab of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| | - Y Z Peng
- State Key lab of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 100193, China
| |
Collapse
|
15
|
Wang YW, Ning D, Peng YZ, Guo YM. Effects of Dietary L-carnitine Supplementation on Growth Performance, Organ Weight, Biochemical Parameters and Ascites Susceptibility in Broilers Reared Under Low-temperature Environment. Asian-Australas J Anim Sci 2014; 26:233-40. [PMID: 25049781 PMCID: PMC4093155 DOI: 10.5713/ajas.2012.12407] [Citation(s) in RCA: 9] [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] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 10/05/2012] [Accepted: 09/28/2012] [Indexed: 02/01/2023]
Abstract
The objective of this study was to investigate the effects of L-carnitine on growth performance, organ weight, biochemical parameters of blood, heart and liver, and ascites susceptibility of broilers at different ages reared under a low-temperature environment. A total of 420 1-d-old male Ross 308 broilers were randomly assigned to two dietary treatments with fifteen replicates of fourteen broilers each. Treatment diets consisted of L-carnitine supplementation at levels of 0 and 100 mg/kg. At 11-d of age, low temperature stress was used to increase ascites susceptibility. Blood, heart and liver samples were collected at different ages for analysis of boichemical parameters. The results showed that, there was no significant difference in growth performance with L-carnitine supplementation, but the mortality due to ascites was significantly decreased. Dietary L-carnitine supplementation significantly reduced heart index (HI) and ascites heart index (AHI) on d 21, lung index (LUI) on d 35 and liver index (LI) on d 42. The broilers fed diets containing L-carnitine had significantly lower red blood cell counts (RBC), hemoglobin (HGB) concentration and hematocrit (HCT) on d 42. Dietary L-carnitine supplementation significantly reduced malondialdehyde (MDA) content of heart tissue on d 21 and 35, and significantly increased total superoxide dismutase (T-SOD) and Glutathione peroxidase (GSH-Px) activity of the heart on d 21 and 42. L-carnitine supplementation significantly reduced serum triglyceride (TG) content on d 28 and 35 and serum glucose (GLU) on d 35 and 42, and significantly increased serum total protein (TP) and globulin (GLO) content on d 42. L-carnitine supplementation significantly enhanced liver succinodehydrogenase (SDH), malic dehydrogenase (MDH) and Na+-K+-ATPase activity on d 28, and tended to reduce the lactic acid (LD) level of liver on d 35 (p = 0.06). L-carnitine supplementation significantly reduced serum uric acid (UA) content on d 28, 35 and 42. Based on the current results, it can be concluded that dietary L-carnitine supplementation reduced organ index, red blood cell counts and hematocrit, enhanced antioxidative capacity of the heart, enhanced liver enzymes activity involved in tricarboxylic acid cycle, and reduced serum glucose and triglyceride. Therefore, it is suggested that L-carnitine can potentially reduce susceptibility and mortality due to ascites.
Collapse
Affiliation(s)
- Y W Wang
- State Key Lab of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - D Ning
- State Key Lab of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Y Z Peng
- State Key Lab of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Y M Guo
- State Key Lab of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| |
Collapse
|
16
|
Peng YZ, Wang YW, Ning D, Guo YM. Changes of haematic parameters, redox status and mitochondrial complex activity in the heart and liver of broilers fed with different density diets under low ambient temperature. Avian Pathol 2013; 42:327-34. [DOI: 10.1080/03079457.2013.800941] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
17
|
Yu S, Yi L, Lianhai Z, Baocai L, Xiaohong W, Henan L, Xiaofang X, Xiaojing C, Bin D, Ying H, Hong D, Ying-ai L, Yubing Z, Ning D, Jiyou L, Weili L, Yongzhen M, Xiaoyan Q, Dalong M, Jiafu J, Wenling H. CMTM3 inhibits cell migration and invasion and correlates with favorable prognosis in gastric cancer. Front Immunol 2013. [DOI: 10.3389/conf.fimmu.2013.02.00484] [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: 11/13/2022] Open
|
18
|
Zhu Y, Ning D, Wang F, Liu C, Xu Y, Jia X, Zhu D. Effect of thyroxine on munc-18 and syntaxin-1 expression in dorsal hippocampus of adult-onset hypothyroid rats. Eur J Histochem 2012. [PMID: 22688303 PMCID: PMC3428971 DOI: 10.4081/ejh.2012.e22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Adult-onset hypothyroidism induces a variety of impairments on hippocampus-dependent neurocognitive functioningin which many synaptic proteins in hippocampus neurons are involved. Here, we observed the effect of adult-onset hypothyroidism on the expression of syntaxin-1 and munc-18 in the dorsal hippocampus and whether the altered proteins could be restored by levothyroxine (T4) treatment. All rats were separated into 4 groups randomly: hypothyroid group, 5 μg T4/100 g body weight (BW) treated group, 20 μg T4/100g BW treated group and control group. The radioimmunoassay kits were applied to assay the levels of serum T3 and T4, and the levels of syntaxin-1 and munc-18 in hippocampus were assessed by immunohistochemistry and Western blot. Both analysis corroborated that syntaxin-1 in the hypothyroid group was significantly higher. Munc-18 was lower in four layers of CA3 and dentate gyrus by immunohistochemistry. After two weeks of treatment with 5 μg T4/100g BW for hypothyroidism, syntaxin-1 levels were completely restored, whereas the recovery of munc-18 only located in two of the four impaired layers. Twenty μg T4/100g BW treatment normalized munc-18 levels. These data suggested that adult-onset hypothyroidism induced increment of syntaxin-1 and decrement of munc-18 in the dorsal hippocampus, which could be restored by T4 treatment. Larger dosage of T4 caused more effective restorations.
Collapse
Affiliation(s)
- Y. Zhu
- Department of Endocrinology, Anhui Geriatric Institute, the First Affiliated Hospital of Anhui Medical University, Hefei
| | - D. Ning
- Department of Endocrinology, Anhui Geriatric Institute, the First Affiliated Hospital of Anhui Medical University, Hefei
| | - F. Wang
- Department of Endocrinology, Anhui Geriatric Institute, the First Affiliated Hospital of Anhui Medical University, Hefei
| | - C. Liu
- Department of Endocrinology, Anhui Geriatric Institute, the First Affiliated Hospital of Anhui Medical University, Hefei
| | - Y. Xu
- Department of Endocrinology, Anhui Geriatric Institute, the First Affiliated Hospital of Anhui Medical University, Hefei
| | - X. Jia
- Comprehensive Laboratory, College of Basic Medicine, Anhui Medical University, Hefei, China
| | - D. Zhu
- Department of Endocrinology, Anhui Geriatric Institute, the First Affiliated Hospital of Anhui Medical University, Hefei
| |
Collapse
|
19
|
Zhu Y, Ning D, Wang F, Liu C, Xu Y, Jia X, Zhu D. Effect of thyroxine on munc-18 and syntaxin-1 expression in dorsal hippocampus of adult-onset hypothyroid rats. Eur J Histochem 2012; 56:e22. [PMID: 22688303 DOI: 10.4081/ejh.2012.22] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2011] [Revised: 12/05/2011] [Accepted: 01/12/2012] [Indexed: 12/11/2022] Open
Abstract
Adult-onset hypothyroidism induces a variety of impairments on hippocampus-dependent neurocognitive functioningin which many synaptic proteins in hippocampus neurons are involved. Here, we observed the effect of adult-onset hypothyroidism on the expression of syntaxin-1 and munc-18 in the dorsal hippocampus and whether the altered proteins could be restored by levothyroxine (T4) treatment. All rats were separated into 4 groups randomly: hypothyroid group, 5 μg T4/100 g body weight (BW) treated group, 20 μg T4/100g BW treated group and control group. The radioimmunoassay kits were applied to assay the levels of serum T3 and T4, and the levels of syntaxin-1 and munc-18 in hippocampus were assessed by immunohistochemistry and Western blot. Both analysis corroborated that syntaxin-1 in the hypothyroid group was significantly higher. Munc-18 was lower in four layers of CA3 and dentate gyrus by immunohistochemistry. After two weeks of treatment with 5 μg T4/100g BW for hypothyroidism, syntaxin-1 levels were completely restored, whereas the recovery of munc-18 only located in two of the four impaired layers. Twenty μg T4/100g BW treatment normalized munc-18 levels. These data suggested that adult-onset hypothyroidism induced increment of syntaxin-1 and decrement of munc-18 in the dorsal hippocampus, which could be restored by T4 treatment. Larger dosage of T4 caused more effective restorations.
Collapse
Affiliation(s)
- Y Zhu
- Department of Endocrinology, Anhui Geriatric Institute, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | | | | | | | | | | | | |
Collapse
|
20
|
Ning D, Leng X, Li Q, Xu W. Surface-displayed VP28 on Bacillus subtilis spores induce protection against white spot syndrome virus in crayfish by oral administration. J Appl Microbiol 2011; 111:1327-36. [PMID: 21933311 DOI: 10.1111/j.1365-2672.2011.05156.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
AIM Surface-displayed heterologous antigens on Bacillus subtilis spores can induce the vertebrate animals tested to generate local and systematic immune response through oral immunization. Here, the protection potential of the recombinant spores displaying the VP28 protein of white spot syndrome virus (WSSV) was investigated in the invertebrate crayfish (Cambarus clarkii). METHODS AND RESULTS The VP28 protein was successfully displayed on the surfaces of B. subtilis spores using CotB or CotC as a fusion partner. Crayfish were administrated orally by feeding the feed pellets coated with B. subtilis spores for 7 days and immediately followed by WSSV challenge. Oral administration of either spores expressing CotB-VP28 or CotC-VP28 resulted in significantly higher relative survival rates of 37.9 and 44.8% compared with the crayfish orally administrated with the spores nonexpressing VP28 (10.3% relative survival rate). When challenges were separately conducted at 7 and 21 days after oral administration, the relative survival rates increased to 46.4 and 50% at 7 days post-oral administration, but decreased to 30 and 33.3% at 21 days after oral administration. CONCLUSION These evidences indicate that the surface-displayed VP28 on B. subtilis spore could induce protection of crayfish against WSSV via oral administration. SIGNIFICANCE AND IMPACT OF THE STUDY This is the first report to use the spore surface display system to deliver orally a heterologous antigen in an aquatic invertebrate animal, crayfish. The results presented here suggest that the spore-displayed VP28 might be suitable for an oral booster vaccine on prevention of WSSV infection in shrimp farming.
Collapse
Affiliation(s)
- D Ning
- School of Environment, Jiangsu University, Zhenjiang, China.
| | | | | | | |
Collapse
|
21
|
Mei S, Xilong Z, Mao H, Ning D. Adaptive pressure support servoventilation: a novel treatment for residual sleepiness associated with central sleep apnea events. Sleep Breath 2010; 15:695-9. [DOI: 10.1007/s11325-010-0424-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2010] [Revised: 07/20/2010] [Accepted: 08/23/2010] [Indexed: 11/24/2022]
|