1
|
Pang Z, Korpela R, Vapaatalo H. Local aldosterone release and CYP11B2 expression in response to angiotensin peptides, glucose, and potassium - an ex vivo study on murine colon. J Physiol Pharmacol 2024; 75:185-194. [PMID: 38736265 DOI: 10.26402/jpp.2024.2.07] [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: 10/02/2024] [Accepted: 04/30/2024] [Indexed: 05/14/2024]
Abstract
We have previously described local aldosterone synthesis in mouse colon. In the renin-angiotensin-aldosterone system (RAAS), angiotensin II (Ang II) peptide is the physiological factor which stimulates aldosterone synthesis in the adrenal glands. We have recently demonstrated that Ang II stimulates aldosterone synthesis also in mouse colon. Here, we conducted a 75-min ex vivo incubation of murine colonic tissue and evaluated the effects of three other Ang peptides, Ang I (1 μM), Ang III (0.1 μM) and Ang (1-7) (0.1 μM) on aldosterone synthesis. As a possible mechanism, their effects on tissue levels of the rate-limiting enzyme, aldosterone synthase (CYP11B2) were measured by ELISA and Western blot. Ang III significantly elevated the amount of tissue CYP11B2 protein in colon. The values of released aldosterone in colon tissue incubation were increased over the control in the presence of Ang I, II or III, however, being statistically non-significant. In Western blot analysis, the values of tissue CYP11B2 protein content were elevated by Ang I and II. Ang (1-7) alone in colon did not influence CYP11B2 protein levels in the incubation experiment but showed higher aldosterone release without statistical significance. Ang (1-7) showed an antagonistic effect towards Ang II in release of aldosterone in adrenal gland. An overall estimation of a single peptide (three measured variables), the results were always in an increasing direction. The responses of aldosterone synthesis to high levels of glucose (44 mM) and potassium (18.8 mM) as physiological stimulators in vivo were investigated in the colon incubation. Glucose, equal to four times the concentration of the control buffer in the incubation, showed higher values of aldosterone release in colon than control without statistical significance similarly to the effect seen in adrenal glands. Increasing the concentration of potassium in the incubation buffer exerted no effect on colonic aldosterone production. Intriguingly, no correlation was found between aldosterone release and the tissue CYP11B2 protein content in colon. In summary, the response of colonic aldosterone synthesis to different Ang peptides resembles, but is not identical to, the situation in the adrenal glands.
Collapse
Affiliation(s)
- Z Pang
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland.
| | - R Korpela
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland
- Faculty of Medicine, Human Microbiome Research Program, University of Helsinki, Helsinki, Finland
| | - H Vapaatalo
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland
| |
Collapse
|
2
|
Wu Y, Xiao Y, Chen X, Xiao Z, Yang C, Li W, Pang Z, Ma W, Zhang J, Li J. Expression pattern and cellular localization of pepsinogen in early development and induced by different diets in the spotted knifejaw (Oplegnathus punctatus). Gene 2024; 897:148075. [PMID: 38086454 DOI: 10.1016/j.gene.2023.148075] [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: 09/21/2023] [Revised: 11/16/2023] [Accepted: 12/08/2023] [Indexed: 01/17/2024]
Abstract
To solve the high mortality rate of early-stage larval feed conversion during aquaculture in Oplegnathus punctatus, the investigation of the structural and functional characteristics of the gastric tissue was conducted. Histological results showed that the gastric gland rudiment appeared at 17 dph. The basic structure of the stomach was fully developed between 26 and 35 dph. Two pepsinogen genes, named OpPGA1 and OpPGA2, were identified in the spotted knifejaw genome. qPCR results of developmental period showed that the two genes were low in expression during early development (5 and 15 dph). At 20 dph, the two genes started to show trace expression, and at 30 dph the mRNA expression levels of OpPGA1 and OpPGA2 reached the highest levels. Results of pepsin activity detection during the development period showed lower activity was detected 22 dph, followed by a peak at 30 dph. Under different feeding inductions, OpPGA1 showed the highest expression in the basic diet group and hard-shell group, while the expression level in the phytophagous group remained consistently low. The mRNA expression level of OpPGA2 in the phytophagous group was significantly higher than in other groups. Enzyme activity determination under different feeding inductions showed slightly higher enzyme activity in the basic diet group and crustacean group. The results of in situ hybridization showed that the mRNA of both OpPGA1 and OpPGA2 genes was both expressed in gastric gland cells. These information can contribute to the development of practical feeding methods in terms of digestive physiology for the development of larvae.
Collapse
Affiliation(s)
- Yanduo Wu
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China
| | - Yongshuang Xiao
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.
| | - Xiao Chen
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China
| | - Zhizhong Xiao
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Chuanjun Yang
- Laizhou Mingbo Aquatic Products Co., Ltd, Yantai, China
| | - Wensheng Li
- Laizhou Mingbo Aquatic Products Co., Ltd, Yantai, China
| | - Zunfang Pang
- Laizhou Mingbo Aquatic Products Co., Ltd, Yantai, China
| | - Wenhui Ma
- Laizhou Mingbo Aquatic Products Co., Ltd, Yantai, China
| | - Jiawei Zhang
- Laizhou Mingbo Aquatic Products Co., Ltd, Yantai, China
| | - Jun Li
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.
| |
Collapse
|
3
|
Wang Y, Hong X, Cao W, Lv J, Yu C, Huang T, Sun D, Liao C, Pang Y, Pang Z, Yu M, Wang H, Wu X, Liu Y, Gao W, Li L. Age effect on the shared etiology of glycemic traits and serum lipids: evidence from a Chinese twin study. J Endocrinol Invest 2024; 47:535-546. [PMID: 37524979 DOI: 10.1007/s40618-023-02164-7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 07/24/2023] [Indexed: 08/02/2023]
Abstract
PURPOSE Diabetes and dyslipidemia are among the most common chronic diseases with increasing global disease burdens, and they frequently occur together. The study aimed to investigate differences in the heritability of glycemic traits and serum lipid indicators and differences in overlapping genetic and environmental influences between them across age groups. METHODS This study included 1189 twin pairs from the Chinese National Twin Registry and divided them into three groups: aged ≤ 40, 41-50, and > 50 years old. Univariate and bivariate structural equation models (SEMs) were conducted on glycemic indicators and serum lipid indicators, including blood glucose (GLU), glycated hemoglobin A1c (HbA1c), total cholesterol (TC), triglycerides (TG), low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol (HDL-C), in the total sample and three age groups. RESULTS All phenotypes showed moderate to high heritability (0.37-0.64). The heritability of HbA1c demonstrated a downward trend with age (HbA1c: 0.50-0.79), while others remained relatively stable (GLU: 0.55-0.62, TC: 0.58-0.66, TG: 0.50-0.63, LDL-C: 0.24-0.58, HDL-C: 0.31-0.57). The bivariate SEMs demonstrated that GLU and HbA1c were correlated with each serum lipid indicator (0.10-0.17), except HDL-C. Except for HbA1c and LDL-C, as well as HbA1c and HDL-C, differences in genetic correlations underlying glycemic traits and serum lipids between age groups were observed, with the youngest group showing a significantly higher genetic correlation than the oldest group. CONCLUSION Across the whole adulthood, genetic influences were consistently important for GLU, TC, TG, LDL-C and HDL-C, and age may affect the shared genetic influences between glycemic traits and serum lipids. Further studies are needed to elucidate the role of age in the interactions of genes related to glycemic traits and serum lipids.
Collapse
Affiliation(s)
- Y Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - X Hong
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - W Cao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - J Lv
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - C Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - T Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - D Sun
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - C Liao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Y Pang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China
| | - Z Pang
- Qingdao Center for Disease Control and Prevention, Qingdao, China
| | - M Yu
- Zhejiang Center for Disease Control and Prevention, Hangzhou, China
| | - H Wang
- Jiangsu Center for Disease Control and Prevention, Nanjing, China
| | - X Wu
- Sichuan Center for Disease Control and Prevention, Chengdu, China
| | - Y Liu
- Heilongjiang Center for Disease Control and Prevention, Harbin, China
| | - W Gao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China.
| | - L Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing, China.
| |
Collapse
|
4
|
Yin J, Hu T, Xu LJ, Zhang LP, Ye YL, Pang Z. [The mechanism by which hsa_circRNA_103124 highly expressed in peripheral blood of patients with active Crohn's disease regulates macrophage differentiation, pyroptosis and inflammation]. Zhonghua Yi Xue Za Zhi 2023; 103:3478-3486. [PMID: 37981775 DOI: 10.3760/cma.j.cn112137-20231007-00646] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/21/2023]
Abstract
Objective: To investigate the role and related mechanism of the highly expressed circular RNA molecule 103124 (hsa_circRNA_103124) in macrophage differentiation, pyroptosis and inflammation in peripheral blood mononuclear cells (PBMC) of patients with active Crohn's disease (CD). Methods: Patients with active CD (CD group) admitted to the Affiliated Suzhou Hospital of Nanjing Medical University from April to September 2018 and healthy people (control group) from the physical examination center of the hospital from July to October 2018 were retrospectively selected. The levels of hsa_circRNA_103124 and Toll-like receptor 4 (TLR4) in PBMC of the two groups were detected by real-time quantitative polymerase chain reaction (RT-qPCR). Tohoku hospital pediatrics-1 (THP1) cell line was used as a model for the study of hsa_circRNA_103124 regulating macrophage differentiation. Lentivirus infection was used to construct hsa_circRNA_103124 overexpressed or down-regulated THP1 cells to induce macrophage-like differentiation. According to the expression level of hsa_circRNA_103124, THP1 cell lines were divided into the following four groups: pLC5-ciR was overexpression control group; hsa_circRNA_103124 OE was the overexpression group; ShRNActrl was down-regulated expression control group; hsa_circRNA_103124 ShRNA was the down-regulated expression group. Flow cytometry was used to detect levels cluster of differentiation (CD) 68, CD80, interleukin (IL)-6, tumor necrosis factor α (TNF-α) and reactive oxygen species (ROS). The expression levels of IL-6, TNF-α, IL-1β, TLR4 and myeloid differentiation factor 88 (MyD88) were detected by RT-qPCR. The levels of gasdermin D (GSDMD), IL-18 and NOD-like receptor thermal protein domain associated protein 3 (NLRP3) were determined by immunofluorescence and RT-qPCR. Pearson correlation analysis was used to analyze the correlation between the abundance of hsa_circRNA_103124 and TLR4 expression level or Crohn's disease activity index (CDAI). Results: A total of 50 patients were included in the CD group, including 36 males and 14 females, aged (35±10) (19-64) years. A total of 30 subjects were included in the control group, including 22 males and 8 females, aged (38±9) (24-64) years. hsa_circRNA_103124 [(0.009±0.016) vs (0.003±0.002), P=0.042] and TLR4 [(0.005±0.003) vs (0.001±0.001), P<0.001] were all upregulated in the PBMC of patients in the CD group, compared with the control group. And hsa_circRNA_103124 was positively correlated with TLR4 (r=0.40, P=0.004). hsa_circRNA_103124 level was positively correlated with CDAI (r=0.32, P=0.024). The expression of CD68 (P=0.002) and CD80 (P<0.001) were enhanced. hsa_circRNA_103124 promoted production of ROS and the expression of IL-6, TNF-α, IL-1β, TLR4, MyD88, GSDMD, IL-18 and NLRP3 in macrophage-like M1 differentiated THP1 cells (all P<0.05). Conclusion: High expresion of hsa_circRNA_103124 in PBMC of patients with active CD may promote macrophage M1 differentiation, pyroptosis and inflammation through enhancing the expression of TLR4, MyD88, NLRP3 and GSDMD.
Collapse
Affiliation(s)
- J Yin
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Gusu School, Nanjing Medical University, Suzhou, 215008, China
| | - T Hu
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Gusu School, Nanjing Medical University, Suzhou, 215008, China
| | - L J Xu
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Gusu School, Nanjing Medical University, Suzhou, 215008, China
| | - L P Zhang
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Gusu School, Nanjing Medical University, Suzhou, 215008, China
| | - Y L Ye
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Gusu School, Nanjing Medical University, Suzhou, 215008, China
| | - Z Pang
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Gusu School, Nanjing Medical University, Suzhou, 215008, China
| |
Collapse
|
5
|
Ye YL, Hu T, Xu LJ, Zhang LP, Yin J, Yu Q, Pang Z. [The diagnostic and evaluation value of plasma interleukin 9 in the mucosal healing in patients with inflammatory bowel disease treated with biological agents]. Zhonghua Yi Xue Za Zhi 2023; 103:1483-1489. [PMID: 37198111 DOI: 10.3760/cma.j.cn112137-20221009-02110] [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] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Objective: To investigate the diagnostic and evaluation value of plasma interleukin 9 (IL9) in the mucosal healing (MH) in patients with inflammatory bowel disease (IBD) treated with biological agents. Methods: Cohort study. IBD patients (137 cases) treated in the Affiliated Suzhou Hospital to Nanjing Medical University (Suzhou Municipal Hospital) from September 2019 to January 2022 were prospective selected. Each patient was treated with biological agents [Infliximab (IFX, 56 cases), Adalimumab (ADA, 20 cases), Ustekinumab (UST, 18 cases), Vedolizumab (VDZ, 43 cases)]. According to different therapeutic drugs, the IFX, ADA, UST, and VDZ group were divided. Clinical symptoms, inflammatory indicators and imaging examinations etc. were evaluated every 8 weeks, and the degree of MH was evaluated by endoscopy at the 54th week. The expression of plasma IL9 was detected by ELISA after initial enrollment (W 0) and 8 weeks of biological treatment (W 8). Receiver operating characteristic curve (ROC) was used to evaluate the diagnostic efficacy of IL9 for MH. Select the cut off value for the optimal ROC threshold based on the highest value of the Youden index. Spearman's rank correlation was used to analyze the correlation between IL9 and Simple Endoscopic Score for CD (SES-CD) and Mayo Endoscopic Score (MES), so as to evaluate the predictive value of IL9 for MH in IBD patients treated with biologic agents. Results: Among the 137 patients, there were 97 Crohn's disease (CD) patients, 53 males and 44 females, aged (31.6±10.3) years (18-60 years). There were 40 ulcerative colitis (UC) patients, 22 males and 18 females, aged (37.5±14.7) years (18-67 years). Among the CD patients, 42 cases (43.3%) achieved MH on endoscopy at the 54th week, and 60 patients (61.9%) achieved clinical remission. Among the UC patients, 22 cases (55.0%) achieved MH and 30 cases (75.0%) achieved clinical remission. At W 0, the relative expression of IL9 in patients in IBD patients who achieved MH after 54 weeks of biological treatment was lower than that in the non-MH patients [x¯±s, (127.42±34.43) vs (146.82±45.64) ng/L, (113.01±44.88) vs (146.12±48.66) ng/L, respectively, both P<0.05]. At W 8, the relative expression of IL9 in the MH group was lower than that in the non-MH patients (both P<0.05). The relative expression of IL9 in the MH patients after IFX treatment was lower than that in the non-MH group (P<0.05). There was no significant difference among the other groups between MH and non-MH patients (all P>0.05). IL9 at W 8 showed high value in predicting MH in IBD [CD patients: area under curve (AUC)=0.716(95%CI: 0.616-0.817, P<0.001), sensitivity and specificity were 80.77%(95%CI:67.64%-88.45%) and 48.89%(95%CI: 35.53%-64.47%), respectively; UC patients: AUC=0.821, sensitivity and specificity were 77.78% and 72.73%, respectively]. At W 8, the cut off values for CD and UC patients were IL9>80.77 ng/L and IL9>77.78 ng/L, respectively. IL9 was positively correlated with endoscopic MH score parameters [M(Q1,Q3),SES-CD: 3.0(8.5, 18.5); MES: 2.0(1.0, 3.0)] (r=0.55, 0.72, respectively, both P<0.001) at W8. Conclusion: The plasma IL-9 at the week 8 after biological agents treatment can be used to diagnose and evaluate the MH of patients with IBD.
Collapse
Affiliation(s)
- Y L Ye
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Suzhou 215008, China
| | - T Hu
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Suzhou 215008, China
| | - L J Xu
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Suzhou 215008, China
| | - L P Zhang
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Suzhou 215008, China
| | - J Yin
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Suzhou 215008, China
| | - Q Yu
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Suzhou 215008, China
| | - Z Pang
- Department of Gastroenterology, the Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Suzhou 215008, China
| |
Collapse
|
6
|
Wu Y, Xiao Y, Li W, Yang C, Ma W, Pang Z, Zhang J, Xiao Z, Li J. Tea polyphenols, astaxanthin, and melittin can significantly enhance the immune response of juvenile spotted knifejaw (Oplegnathus punctatus). Fish Shellfish Immunol 2023; 138:108817. [PMID: 37230309 DOI: 10.1016/j.fsi.2023.108817] [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] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/06/2023] [Accepted: 05/15/2023] [Indexed: 05/27/2023]
Abstract
The frequent occurrence of diseases seriously hampers the sustainable development of the spotted knifejaw (Oplegnathus punctatus) breeding industry. Our previous genome-wide scan and cross-species comparative genomic analysis revealed that the immune gene family (Toll-like receptors, TLR) members of O. punctatus underwent a significant contraction event (tlr1, tlr2, tlr14, tlr5, and tlr23). To address immune genetic contraction may result in reduced immunity, we investigated whether adding different doses (0, 200, 400, 600, and 800 mg/kg) of immune enhancers (tea polyphenols, astaxanthin, and melittin) to the bait after 30 days of continuous feeding could stimulate the immune response of O. punctatus. We found that the expression of tlr1, tlr14, tlr23 genes in immune organs (spleen and head kidney) was stimulated when tea polyphenols were added at 600 mg/kg. The tlr2 (400 mg/kg), tlr14 (200 mg/kg), tlr5 (200 mg/kg), and tlr23 (200 mg/kg) genes expression of intestine were elevated in the tea polyphenol group. When the addition of astaxanthin is 600 mg/kg, it can effectively stimulate the expression of tlr14 gene in immune organs (liver, spleen and head kidney). In the astaxanthin group, the expression of the genes tlr1 (400 mg/kg), tlr14 (600 mg/kg), tlr5 (400 mg/kg) and tlr23 (400 mg/kg) reached their highest expression in the intestine. Besides, the addition of 400 mg/kg of melittin can effectively induce the expression of tlr genes in the liver, spleen and head kidney, except the tlr5 gene. The tlr-related genes expression in the intestine was not significantly elevated in the melittin group. We hypothesize that the immune enhancers could enhance the immunity of O. punctatus by increasing the expression of tlr genes, and thereby leading to increased resistance to diseases. Meanwhile, our findings further demonstrated that significant increases in weight gain rate (WGR), visceral index (VSI), and feed conversion rate (FCR) were observed at 400 mg/kg, 200 mg/kg and 200 mg/kg of tea polyphenols, astaxanthin and melittin in the diet, respectively. Overall, our study provided valuable insights for future immunity enhancement and viral infection prevention in O. punctatus, as well as offered guidance for the healthy development of the O. punctatus breeding industry.
Collapse
Affiliation(s)
- Yanduo Wu
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; University of Chinese Academy of Sciences, Beijing, China
| | - Yongshuang Xiao
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Wensheng Li
- Laizhou Mingbo Aquatic Products Co., Ltd., Yantai, 261418, China
| | - Chuanjun Yang
- Laizhou Mingbo Aquatic Products Co., Ltd., Yantai, 261418, China
| | - Wenhui Ma
- Laizhou Mingbo Aquatic Products Co., Ltd., Yantai, 261418, China
| | - Zunfang Pang
- Laizhou Mingbo Aquatic Products Co., Ltd., Yantai, 261418, China
| | - Jiawei Zhang
- Laizhou Mingbo Aquatic Products Co., Ltd., Yantai, 261418, China
| | - Zhizhong Xiao
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.
| | - Jun Li
- CAS and Shandong Province Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.
| |
Collapse
|
7
|
Pang Z, Korpela R, Vapaatalo H. Intestinal aldosterone synthase activity and aldosterone synthesis in mouse. J Physiol Pharmacol 2022; 73. [PMID: 36696240 DOI: 10.26402/jpp.2022.4.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 08/30/2022] [Indexed: 01/26/2023]
Abstract
Aldosterone is the most important mineralocorticoid hormone regulating water and electrolyte absorption in the distal convoluted tubule of the kidney. Recently, we detected the presence of the whole chain of aldosterone production from the precursor corticosterone, transcription factor liver receptor homologue-1 (LRH-1), the aldosterone synthase enzyme protein (CYP11B2) as well as the gene to the final product aldosterone in murine large intestine. Here, we decided to correlate the amount of this synthase protein with its enzymatic activity in different parts of gastrointestinal tract and also with the aldosterone concentration in the respective tissue. Considering the physiological behavior of the animals in light and dark environment, we measured these variables at four time points - two in the light, the others during darkness. In vitro activity of CYP11B2 was measured as the amount of aldosterone formed from the precursor deoxycorticosterone using enzyme preparations from homogenized intestinal sections. CYP11B2 enzyme activity was higher in the large than in the small intestine. In ileum and colon, the CYP11B2 activity increased in the dark time. The highest aldosterone concentration was detected in the dark in the large intestine. In summary, enzyme activity of CYP11B2 was present in all parts of intestine; the large intestine formed more aldosterone during the darkness. No difference was seen in any of the variables between the early and late light hours.
Collapse
Affiliation(s)
- Z Pang
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland.
| | - R Korpela
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland.,Faculty of Medicine, Human Microbiome Research Program, University of Helsinki, Helsinki, Finland
| | - H Vapaatalo
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland
| |
Collapse
|
8
|
Launonen H, Pang Z, Linden J, Siltari A, Korpela R, Vapaatalo H. Evidence for local aldosterone synthesis in the large intestine of the mouse. J Physiol Pharmacol 2021; 72. [PMID: 35288482 DOI: 10.26402/jpp.2021.5.15] [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: 07/27/2021] [Accepted: 10/30/2021] [Indexed: 06/14/2023]
Abstract
Aldosterone, the main physiological mineralocorticoid, regulates sodium and potassium balance in the distal convoluted tubule of the kidney. Aldosterone is synthesized from cholesterol in the adrenal cortex in a sequence of enzymatic steps. Recently however, several tissues or cells e.g. brain, heart, blood vessels, kidneys and adipocytes have been shown to possess capability to produce aldosterone locally, and there is some evidence that this occurs also in the intestine. Colon expresses mineralocorticoid receptors and is capable of synthesizing corticosterone, the second last intermediate on the route to aldosterone from cholesterol. Based on such reports and on our preliminary finding, we hypothesized that aldosterone could be synthesized locally in the intestine and therefore we measured the concentration of aldosterone as well as the protein and gene expression of aldosterone synthase (CYP11B2), an enzyme responsible on aldosterone synthesis, from the distal section of the gastrointestinal tract of 10-week-old Balb/c male mice. It is known that sodium deficiency regulates aldosterone synthesis in adrenal glands, therefore we fed the mice with low (0.01%), normal (0.2%) and high-sodium (1.6%) diets for 14 days. Here we report that, aldosterone was detected in colon and cecum samples. Measurable amounts of CYP11B2 protein were detected by Western blot and Elisa analysis from both intestinal tissues. We detected CYP11B2 gene expression from the large intestine along with immunohistochemical findings of CYP11B2 in colonic wall. Sodium depletion increased the aldosterone concentration in plasma compared to control and high-sodium groups as well as in the intestine compared to mice fed with the high-sodium diet. To summarize, this study further supports the presence of aldosterone and the enzyme needed to produce this mineralocorticoid in the murine large intestine.
Collapse
Affiliation(s)
- H Launonen
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland
| | - Z Pang
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland
| | - J Linden
- Faculty of Veterinary Medicine, Department of Veterinary Biosciences and Finnish Centre for Laboratory Animal Pathology (FCLAP), Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - A Siltari
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - R Korpela
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland
- Faculty of Medicine, Human Microbiome Research Program, University of Helsinki, Helsinki, Finland
| | - H Vapaatalo
- Faculty of Medicine, Pharmacology, University of Helsinki, Helsinki, Finland.
| |
Collapse
|
9
|
Li M, Zhang R, Fan G, Xu W, Zhou Q, Wang L, Li W, Pang Z, Yu M, Liu Q, Liu X, Schartl M, Chen S. Reconstruction of the Origin of a Neo-Y Sex Chromosome and Its Evolution in the Spotted Knifejaw, Oplegnathus punctatus. Mol Biol Evol 2021; 38:2615-2626. [PMID: 33693787 PMCID: PMC8136494 DOI: 10.1093/molbev/msab056] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Sex chromosomes are a peculiar constituent of the genome because the evolutionary forces that fix the primary sex-determining gene cause genic degeneration and accumulation of junk DNA in the heterogametic partner. One of the most spectacular phenomena in sex chromosome evolution is the occurrence of neo-Y chromosomes, which lead to X1X2Y sex-determining systems. Such neo-sex chromosomes are critical for understanding the processes of sex chromosome evolution because they rejuvenate their total gene content. We assembled the male and female genomes at the chromosome level of the spotted knifejaw (Oplegnathus punctatus), which has a cytogenetically recognized neo-Y chromosome. The full assembly and annotation of all three sex chromosomes allowed us to reconstruct their evolutionary history. Contrary to other neo-Y chromosomes, the fusion to X2 is quite ancient, estimated at 48 Ma. Despite its old age and being even older in the X1 homologous region which carries a huge inversion that occurred as early as 55-48 Ma, genetic degeneration of the neo-Y appears to be only moderate. Transcriptomic analysis showed that sex chromosomes harbor 87 genes, which may serve important functions in the testis. The accumulation of such male-beneficial genes, a large inversion on the X1 homologous region and fusion to X2 appear to be the main drivers of neo-Y evolution in the spotted knifejaw. The availability of high-quality assemblies of the neo-Y and both X chromosomes make this fish an ideal model for a better understanding of the variability of sex determination mechanisms and of sex chromosome evolution.
Collapse
Affiliation(s)
- Ming Li
- Yellow Sea Fisheries Research Institute, CAFS; Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, China
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao, China
| | - Rui Zhang
- BGI-Qingdao, BGI-Shenzhen, Qingdao, China
| | | | - Wenteng Xu
- Yellow Sea Fisheries Research Institute, CAFS; Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, China
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao, China
| | - Qian Zhou
- Yellow Sea Fisheries Research Institute, CAFS; Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, China
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao, China
| | - Lei Wang
- Yellow Sea Fisheries Research Institute, CAFS; Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, China
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao, China
| | - Wensheng Li
- Laizhou Mingbo Aquatic Product Co. Ltd., Laizhou, Shandong, China
| | - Zunfang Pang
- Laizhou Mingbo Aquatic Product Co. Ltd., Laizhou, Shandong, China
| | - Mengjun Yu
- BGI-Qingdao, BGI-Shenzhen, Qingdao, China
| | - Qun Liu
- BGI-Qingdao, BGI-Shenzhen, Qingdao, China
| | - Xin Liu
- BGI-Qingdao, BGI-Shenzhen, Qingdao, China
- Corresponding authors: E-mails: ; ;
| | - Manfred Schartl
- Entwicklungsbiochemie, University of Würzburg, Biozentrum, Würzburg, Germany
- Xiphophorus Genetic Stock Center, Texas State University, San Marcos, TX, USA
- Corresponding authors: E-mails: ; ;
| | - Songlin Chen
- Yellow Sea Fisheries Research Institute, CAFS; Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, China
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao, China
- Corresponding authors: E-mails: ; ;
| |
Collapse
|
10
|
Zhang JS, Xu HY, Fang JC, Yin BZ, Wang BB, Pang Z, Xia GJ. Integrated microRNA-mRNA analysis reveals the roles of microRNAs in the muscle fat metabolism of Yanbian cattle. Anim Genet 2021; 52:598-607. [PMID: 34350996 DOI: 10.1111/age.13126] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/14/2021] [Indexed: 12/16/2022]
Abstract
Fat deposition is an important economic trait in farm animals. However, it is difficult to genetically improve intramuscular fat deposition via trait-based cattle breeding. The main objectives of this study were to analyze the factors about beef flavor, and to detect functional microRNA (miRNA, miR) associated with intramuscular fat deposition in Yanbian cattle. Longissimus dorsi samples from six steers were separated into high- and low-fat groups (n = 3 each) based on the marbling score, and transcriptomic analysis was performed using miRNA sequencing. A total of 33 miRNAs and 38 genes were found to be differentially expressed in the high- and low-fat groups. Quantitative real-time polymerase chain reaction was performed to validate the sequencing results. Integrated miRNA-mRNA analysis revealed that miRNA-associated target genes were primarily associated with skeletal muscle development. However, some of the miRNAs (miR-424 etc.) and genes (ATF3 etc.) were also associated with fat metabolism. A targeted relationship between miR-22-3p and the WFIKKN2 gene and its involvement in adipocyte differentiation were confirmed experimentally. The study findings may provide potential candidate molecular targets for the selection of cattle with improved meat quality.
Collapse
Affiliation(s)
- J S Zhang
- College of Agriculture, Yanbian University, Yanji, 133002, China
| | - H Y Xu
- College of Agriculture, Yanbian University, Yanji, 133002, China
| | - J C Fang
- Faculty of Agriculture and Life Science, Hirosaki University, Hirosaki, Japan
| | - B Z Yin
- College of Agriculture, Yanbian University, Yanji, 133002, China
| | - B B Wang
- College of Agriculture, Yanbian University, Yanji, 133002, China
| | - Z Pang
- College of Agriculture, Yanbian University, Yanji, 133002, China
| | - G J Xia
- College of Agriculture, Yanbian University, Yanji, 133002, China.,Engineering Research Center of North-East Cold Region Beef Cattle Science & Technology Innovation, Ministry of Education, Yanbian University, Yanji, 133002, China
| |
Collapse
|
11
|
Yang H, Song Y, Huang Z, Qian J, Pang Z, Ge J. Platelet membrane-coated nanoparticles target sclerotic aortic valves in ApoE−/− mice by multiple binding mechanisms under pathological shear stress. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1863] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Aortic valve disease is the most common valvular heart disease leading to valve replacement. The efficacy of pharmacological therapy for aortic valve disease is limited by the high mechanical stress at the aortic valves impairing the binding rate. We aimed to identify nanoparticle coating with entire platelet membranes to fully mimic their inherent multiple adhesion mechanisms and target the sclerotic aortic valve of apolipoprotein E-deficient (ApoE−/−) mice based on their multiple sites binding capacity under high shear stress.
Methods
Considering the potent interaction of platelet membrane glycoproteins with components present in sclerotic aortic valves, platelet membrane-coated nanoparticles (PNPs) were synthetized and the binding capacity under high shear stress was evaluated in vitro and in vivo.
Results
Compared with PNPs bound intensity in the static station, 161%, 59%, and 39% of attached PNPs remained adherent on VWF-, collagen-, and fibrin-coated surfaces under shear stress of 25dyn/cm2 respectively. PNPs demonstrated effectively adhering to von Willebrand factor, collagen and fibrin under shear stresses in vitro. In an aortic valve disease model established in ApoE−/− mice, PNPs group exhibited significant increase of accumulation in the aortic valves compared with PBS and control NP group. PNPs displayed high degrees of proximity or co-localization with vWF, collagen and fibrin, which exhibited good targeting to sclerotic aortic valves by mimicking platelet multiple adhesive mechanisms.
Conclusion
PNPs could provide a promising platform for the molecular diagnosis and targeting treatment of aortic valve disease.
Targeting combination
Funding Acknowledgement
Type of funding source: Foundation. Main funding source(s): National Natural Science Foundation of China
Collapse
Affiliation(s)
- H Yang
- Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| | - Y Song
- Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| | - Z Huang
- Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| | - J Qian
- Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| | - Z Pang
- Fudan University, School of Pharmacy, Shanghai, China
| | - J Ge
- Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, China
| |
Collapse
|
12
|
Li M, Xu H, Xu W, Zhou Q, Xu X, Zhu Y, Zheng W, Li W, Pang Z, Chen S. Isolation of a Male-Specific Molecular Marker and Development of a Genetic Sex Identification Technique in Spotted Knifejaw (Oplegnathus punctatus). Mar Biotechnol (NY) 2020; 22:467-474. [PMID: 32424478 DOI: 10.1007/s10126-020-09966-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 03/26/2020] [Indexed: 06/11/2023]
Abstract
Sex-specific DNA markers are very helpful for identifying genetic sex and studying sex determination mechanisms in fish. To identify the sex-specific markers of spotted knifejaw (Oplegnathus punctatus), we performed a comparative analysis of the female and male genomes. In this study, an 18 bp insertion was identified in the male genome after verification by sequencing depth and PCR. An effective and rapid method based on PCR was then developed to identify the genetic sex. A male-female-shared primer pair and a male-specific primer were designed for PCR amplification to avoid false-negative phenomena. To examine the primers in practice, we utilized hundreds of spotted knifejaw fish from different groups to identify their genetic sex, and the results were consistent with their phenotypic sex. The male-specific DNA marker would be helpful for artificial breeding, Y chromosome assembly and further study of the sex determination mechanism. This study is the first to identify an effective sex-specific marker in spotted knifejaw.
Collapse
Affiliation(s)
- Ming Li
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Yellow Sea Fisheries Research Institute, CAFS, Qingdao, China
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Hao Xu
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Yellow Sea Fisheries Research Institute, CAFS, Qingdao, China
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Wenteng Xu
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Yellow Sea Fisheries Research Institute, CAFS, Qingdao, China
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao, China
| | - Qian Zhou
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Yellow Sea Fisheries Research Institute, CAFS, Qingdao, China
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao, China
| | - Xiwen Xu
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Yellow Sea Fisheries Research Institute, CAFS, Qingdao, China
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao, China
| | - Ying Zhu
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Yellow Sea Fisheries Research Institute, CAFS, Qingdao, China
| | - Weiwei Zheng
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Yellow Sea Fisheries Research Institute, CAFS, Qingdao, China
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao, China
| | - Wensheng Li
- Laizhou Mingbo Aquatic Product Co., Ltd., Laizhou, Shandong, China
| | - Zunfang Pang
- Laizhou Mingbo Aquatic Product Co., Ltd., Laizhou, Shandong, China
| | - Songlin Chen
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Yellow Sea Fisheries Research Institute, CAFS, Qingdao, China.
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao, China.
| |
Collapse
|
13
|
Duan Y, Chen J, Pang Z, Ye X, Zhang C, Hu H, Xie J. Antifungal mechanism of Streptomyces ma. FS-4 on fusarium wilt of banana. J Appl Microbiol 2020; 130:196-207. [PMID: 32654413 DOI: 10.1111/jam.14784] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 06/15/2020] [Accepted: 07/03/2020] [Indexed: 12/24/2022]
Abstract
AIM Research on prevention and cure of banana wilt is important to ensure the healthy development of the banana industry. In this study, antifungal mechanism of Streptomyces ma. FS-4 on fusarium wilt of banana was investigated. METHODS AND RESULTS The physiological strain of banana fusarium pathogen Fusarium oxysporum f. sp. cubense Race 4 (FOC.4) was used as the target fungus, and the antifungal mechanism of the crude extract of Streptomyces ma. FS-4 was investigated. Eighteen different compounds identified by gas chromatography-mass spectrometry were composed of aldehydes, methyl, hydrocarbons, amides, esters and acids. FS-4 significantly inhibited the spore germination of the target fungi, with an EC50 of 22·78 μg ml-1 . After treatment with 100 μg ml-1 FS-4 crude extract, the N-acetylglucosamine content in the mycelium increased 1·95-fold. However, the extract had no significant effect on β-1,3-glucanase. At the FS-4 crude extract dose of 100 μg ml-1 , the total sugar and protein contents decreased by 28·6 and 29·1% respectively, and the fat content was 41·3%. FS-4 significantly inhibited the activity of the mitochondrial complex III of Foc4, which was reduced by 52·45%. Moreover FS-4 reduced the activity of succinate dehydrogenase, a key enzyme in the Krebs cycle, by 60·2%. However, FS-4 had no significant effect on malate dehydrogenase. The membrane potential on the mitochondrial inner membrane was significantly reduced at the test concentration of 100 μg ml-1 . ROS gradually accumulated in the Foc4 hypha, and the burst was 3·97 times higher than the control. CONCLUSIONS This study demonstrated that the antifungal mechanism of Streptomyces ma. FS-4 against Foc4 includes the destruction of the plasma membrane and mitochondrial dysfunction and finally induction of cell apoptosis. SIGNIFICANCE AND IMPACT OF THE STUDY These results may indicate the prevention and control of banana wilt, which is of great significance to the healthy development of banana industry system.
Collapse
Affiliation(s)
- Y Duan
- Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture, South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Science, Zhanjiang, China
| | - J Chen
- College of Food Science and Technology, Hainan University, Haikou, China
| | - Z Pang
- Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture, South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Science, Zhanjiang, China
| | - X Ye
- College of Food Science and Technology, Hainan University, Haikou, China
| | - C Zhang
- College of Food Science and Technology, Hainan University, Haikou, China
| | - H Hu
- Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture, South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Science, Zhanjiang, China
| | - J Xie
- Key Laboratory of Tropical Fruit Biology, Ministry of Agriculture, South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Science, Zhanjiang, China
| |
Collapse
|
14
|
Li Z, Tian Y, Li Z, Chen S, Wang L, Li L, Zhang J, Wu Y, Pang Z, Ma W, Zhai J. The complete mitochondrial genome of the hybrid offspring Epinephelus awoara♀ × Epinephelus tukula♂. Mitochondrial DNA B Resour 2020; 5:1025-1026. [PMID: 33366858 PMCID: PMC7748569 DOI: 10.1080/23802359.2020.1721356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The complete mitochondrial genome of hybrid grouper from Epinephelus awoara (♀) ×E. tukula (♂) was obtained by PCR amplification. The circular genome was 16,801 bp in length, consisting of 13 protein-coding genes, 22 transfer RNA genes, 2 ribosomal RNA genes, and a control region (D-loop region). The overall base composition was as follows: A: 28.46%, T: 27.27%, C: 27.27%, G: 16.49%. The new results may provide valuable data for the genetic and taxonomic research on artificial hybrid grouper.
Collapse
Affiliation(s)
- Ziqi Li
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China.,College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Yongsheng Tian
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Zhentong Li
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Shuai Chen
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Linna Wang
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Linlin Li
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jingjing Zhang
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Yuping Wu
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
| | | | - Wenhui Ma
- Laizhou Mingbo Aquatic Co., Ltd, Yantai, China
| | | |
Collapse
|
15
|
Li Z, Tian Y, Li L, Wu Y, Zhang J, Li Z, Wang L, Cheng M, Pang Z, Ma W, Zhai J. Characterization of the complete mitochondrial genome of the hybrid grouper Epinephelus akaara ♀ × Epinephelus tukula ♂, with its phylogenetic analysis. Mitochondrial DNA B Resour 2019; 4:3350-3351. [PMID: 33365988 PMCID: PMC7707317 DOI: 10.1080/23802359.2019.1673678] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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: 08/26/2019] [Accepted: 09/23/2019] [Indexed: 11/13/2022] Open
Abstract
Epinephelus akaara ♀ × Epinephelus tukula ♂ is an economically important fish. The mitochondrial genome of the hybrid grouper had a double-stranded DNA molecule with the length of 16,928 bp and consists of 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, and a control region. The gene composition of the hybrid grouper mitochondrial genome was similar to that of most other vertebrates. Furthermore, phylogenetic analysis by maximum-likelihood (ML) method, based on the nucleotide sequences of 13 protein-coding genes, showed that the hybrid grouper has the closer relationship to Epinephelus akaara and confirmed that the mitochondrial genome is maternally inherited.
Collapse
Affiliation(s)
- Zhentong Li
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Yongsheng Tian
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
- Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Linlin Li
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
- Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yuping Wu
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
- College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
| | - Jingjing Zhang
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Ziqi Li
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Linna Wang
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
- Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Meiling Cheng
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
- College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
| | | | - Wenhui Ma
- Laizhou Mingbo Aquatic Co., Ltd, Yantai, China
| | | |
Collapse
|
16
|
Wang L, Tian Y, Cheng M, Li Z, Li S, Wu Y, Zhang J, Ma W, Li W, Pang Z, Zhai J. Transcriptome comparative analysis of immune tissues from asymptomatic and diseased Epinephelus moara naturally infected with nervous necrosis virus. Fish Shellfish Immunol 2019; 93:99-107. [PMID: 31323328 DOI: 10.1016/j.fsi.2019.07.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 07/06/2019] [Accepted: 07/10/2019] [Indexed: 06/10/2023]
Abstract
Epinephelus moara is an economically important fish in Southeast Asian countries but is suffering from nervous necrosis virus (NNV) infection. A deeper understanding of the host-NNV interaction mechanisms makes sense for disease control, however, at present, the pathogenesis of natural NNV infection and the resistance mechanism in host remains poorly understood. In this study, asymptomatic and diseased E. moara with clinical symptoms of viral nervous necrosis (VNN) from a grouper farm were both detected with a positive RT-PCR signal of NNV, then transcriptome sequencing of their immune tissues (liver, spleen and kidney) were performed for comparation analysis. The de novo assemblies yielded 53,789 unigenes which had a length varied from 201 to 19,675 bp and a N50 length of 2115 bp, and 29,451 unigenes were functionally annotated, with 83, 250 and 5632 unigenes being differentially expressed in liver, spleen and kidney respectively. KEGG pathway enrichment analysis of the DEGs showed many DEGs were enriched in immune related pathways. Although the expression of class I major histocompatibility complex (MHC) was significantly higher in three immune tissues of the diseased grouper, many immune related genes, including humoral immune molecules (such as antibodies), the cellular mediated cytotoxic molecules (such as perforin) and some adhesion related genes were down regulated in the diseased grouper. Our results provided many unigenes that might play important roles in NNV resistance for further research. Furthermore, a total of 8666 unigenes containing 11,623 simple sequence repeats (SSRs) were identified, which provided useful information for screening molecular markers associated with NNV resistance in E. moara.
Collapse
Affiliation(s)
- Linna Wang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266000, China
| | - Yongsheng Tian
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266000, China.
| | - Meiling Cheng
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China; College of Fisheries and Life Science, Dalian Ocean University, Dalian, l16023, China
| | - Zhentong Li
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China; College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - Shangyong Li
- Department of Pharmacology, College of Basic Medicine, Qingdao University, Qingdao, 266071, China
| | - Yuping Wu
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China; College of Fisheries and Life Science, Dalian Ocean University, Dalian, l16023, China
| | - Jingjing Zhang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China; College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, 201306, China
| | - Wenhui Ma
- Mingbo Aquatic Co. Ltd, Laizhou, 261400, China
| | - Wensheng Li
- Mingbo Aquatic Co. Ltd, Laizhou, 261400, China
| | | | | |
Collapse
|
17
|
Gao W, Cao W, Lv J, Yu C, Wu T, Wang S, Meng L, Wang D, Wang Z, Pang Z, Yu M, Wang H, Wu X, Dong Z, Wu F, Jiang G, Wang X, Liu Y, Deng J, Lu L, Li L. The Chinese National Twin Registry: a 'gold mine' for scientific research. J Intern Med 2019; 286:299-308. [PMID: 31270876 DOI: 10.1111/joim.12926] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 12/22/2022]
Abstract
The Chinese National Twin Registry (CNTR) currently includes data from 61 566 twin pair from 11 provinces or cities in China. Of these, 31 705, 15 060 and 13 531 pairs are monozygotic, same-sex dizygotic and opposite-sex dizygotic pairs, respectively, determined by opposite sex or intrapair similarity. Since its establishment in 2001, the CNTR has provided an important resource for analysing genetic and environmental influences on chronic diseases especially cardiovascular diseases. Recently, the CNTR has focused on collecting biologic specimens from disease-concordant or disease-discordant twin pairs or from twin pairs reared apart. More than 8000 pairs of these twins have been registered, and blood samples have been collected from more than 1500 pairs. In this review, we summarize the main findings from univariate and multivariate genetic effects analyses, gene-environment interaction studies, omics studies exploring DNA methylation and metabolomic markers associated with phenotypes. There remains further scope for CNTR research and data mining. The plan for future development of the CNTR is described. The CNTR welcomes worldwide collaboration.
Collapse
Affiliation(s)
- W Gao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - W Cao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - J Lv
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - C Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - T Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - S Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - L Meng
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - D Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Z Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Z Pang
- Qingdao Center for Disease Control and Prevention, Qingdao, China
| | - M Yu
- Zhejiang Center for Disease Control and Prevention, Hangzhou, China
| | - H Wang
- Jiangsu Center for Disease Control and Prevention, Nanjing, China
| | - X Wu
- Sichuan Center for Disease Control and Prevention, Chengdu, China
| | - Z Dong
- Beijing Center for Disease Control and Prevention, Beijing, China
| | - F Wu
- Shanghai Center for Disease Control and Prevention, Shanghai, China
| | - G Jiang
- Tianjin Center for Disease Control and Prevention, Tianjin, China
| | - X Wang
- Qinghai Center for Disease Control and Prevention, Xining, China
| | - Y Liu
- Heilongjiang Agricultural Center for Disease Control and Prevention, Harbin, China
| | - J Deng
- Handan Center for Disease Control and Prevention, Handan, China
| | - L Lu
- Yunnan Center for Disease Control and Prevention, Kunming, China
| | - L Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| |
Collapse
|
18
|
Cheng M, Tian Y, Li Z, Wang L, Wu Y, Zhang J, Pang Z, Ma W, Zhai J. The complete mitochondrial genome of the hybrid offspring Epinephelus fuscoguttatus ♀ × Epinephelus tukula ♂. Mitochondrial DNA B Resour 2019; 4:2717-2718. [PMID: 33365697 PMCID: PMC7706848 DOI: 10.1080/23802359.2019.1644554] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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] [Indexed: 11/17/2022]
Abstract
The hybrid offspring Epinephelus fuscoguttatus ♀ × E. tukula ♂ showed heterosis in terms of growth and disease resistance. The mitochondrial genome is 16,629 bp in length and consists of 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes, and a control region. The difference of total length is mainly caused by the difference of length in non-coding region. The nucleotide base composition is A = 29.15%, G = 15.62%, T = 26.91%, C = 28.32%, A + T = 56.06%, and C + G = 43.94%. The phylogenetic analysis using neighbour-joining (NJ) method showed that the hybrid offspring has a closer relationship to E. fuscoguttatus × E. lanceolatus.
Collapse
Affiliation(s)
- Meiling Cheng
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
| | - Yongsheng Tian
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Zhentong Li
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Linna Wang
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China
| | - Yuping Wu
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,College of Fisheries and Life Science, Dalian Ocean University, Dalian, China
| | - Jingjing Zhang
- Key Laboratory of Sustainable Development of Marine Fisheries, Ministry of Agriculture and Rural Affairs, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, China.,College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | | | - Wenhui Ma
- Laizhou Mingbo Aquatic Co., Ltd, Yantai, China
| | | |
Collapse
|
19
|
Luo Q, Pang Z, Liu C, Liu X. Hepatobiliary and Pancreatic: Spontaneous hepatic hemorrhage caused by Ehlers-Danlos syndrome. J Gastroenterol Hepatol 2019; 34:10. [PMID: 29888804 DOI: 10.1111/jgh.14278] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 04/27/2018] [Indexed: 12/09/2022]
Affiliation(s)
- Q Luo
- Department of General Surgery, Second Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
| | - Z Pang
- Department of General Surgery, Second Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
| | - C Liu
- Department of General Surgery, Second Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
| | - X Liu
- Department of General Surgery, Second Affiliated Hospital of Zhengzhou University, Zhengzhou City, China
| |
Collapse
|
20
|
Pang Z, Yuan H, Zhang YT, Packirisamy M. Guest Editorial Health Engineering Driven by the Industry 4.0 for Aging Society. IEEE J Biomed Health Inform 2018. [DOI: 10.1109/jbhi.2018.2874081] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
21
|
Ye YL, Pang Z, Gu W, Zheng JJ. [Expression of microRNA-155 in inflammatory bowel disease and its clinical significance]. Zhonghua Yi Xue Za Zhi 2018; 97:3716-3719. [PMID: 29325325 DOI: 10.3760/cma.j.issn.0376-2491.2017.47.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the expression of microRNA-155 in colonic mucosa and peripheral blood in patients with inflammatory bowel disease(IBD), and to examine the clinical value and significance of microRNA-155 in the diagnosis of IBD. Methods: Quatitative reverse-transcription PCR was performed to detect the expression of microRNA-155 in 20 patients with Crohn disease(CD), 21 patients with ulcerative colitis (UC), 18 patients with IBD type unclassified(IBDU), 25 healthy people(control group), 12 patients with infection colitis and 19 patients with ischemia colitis.Receiver operating characteristic (ROC) curve was performed to analyze the clincal value of microRNA-155 in diagnosis of IBD. Results: The expression of microRNA-155 in colonic mucosa in CD, UC and IBDU group was significantly higher than that in control group(P<0.05). MicroRNA-155 expression was also significantly higher in UC group in comparison to CD group (35.4±3.0 vs 18.6±5.9, P<0.01), IBDU group in comparison to CD group (23.0±3.7 vs 18.6±5.9, P<0.05) and UC group in comparison to IBDU group (35.4±3.0 vs 23.0±3.7, P<0.01). The plasma level of microRNA-155 in UC group (55.6±2.5) and IBDU group (48.1±6.2) was significantly higher than that in control group(P<0.05), while no significant difference in CD group was observed when compared with control group(P>0.05). ROC curve shows an AUC of 0.83 and 95%CI of 0.679-0.986 of microRNA-155 expression in colonic mucosa.The sensitivity and specificity of microRNA-155 expression in colonic mucosa in diagnosis of IBD was 68.4% and 78.6%, respectively. Conclusions: MicroRNA-155 showed high expression in colonic mucosa and peripheral blood in patients with IBD.MicroRNA-155 shows promise as a biomarker in diagnosis of IBD.Furthermore, the aberrant expression indicates that microRNA-155 may be involved in pathogenesis and progression of IBD.
Collapse
Affiliation(s)
- Y L Ye
- Department of Gastroenterology, Nanjing Medical University Affiliated Suzhou Hospital, Suzhou 215008, China
| | | | | | | |
Collapse
|
22
|
Jelenkovic A, Yokoyama Y, Sund R, Hur YM, Harris JR, Brandt I, Nilsen TS, Ooki S, Ullemar V, Almqvist C, Magnusson PKE, Saudino KJ, Stazi MA, Fagnani C, Brescianini S, Nelson TL, Whitfield KE, Knafo-Noam A, Mankuta D, Abramson L, Cutler TL, Hopper JL, Llewellyn CH, Fisher A, Corley RP, Huibregtse BM, Derom CA, Vlietinck RF, Bjerregaard-Andersen M, Beck-Nielsen H, Sodemann M, Krueger RF, McGue M, Pahlen S, Alexandra Burt S, Klump KL, Dubois L, Boivin M, Brendgen M, Dionne G, Vitaro F, Willemsen G, Bartels M, van Beijsterveld CEM, Craig JM, Saffery R, Rasmussen F, Tynelius P, Heikkilä K, Pietiläinen KH, Bayasgalan G, Narandalai D, Haworth CMA, Plomin R, Ji F, Ning F, Pang Z, Rebato E, Tarnoki AD, Tarnoki DL, Kim J, Lee J, Lee S, Sung J, Loos RJF, Boomsma DI, Sørensen TIA, Kaprio J, Silventoinen K. Associations between birth size and later height from infancy through adulthood: An individual based pooled analysis of 28 twin cohorts participating in the CODATwins project. Early Hum Dev 2018; 120:53-60. [PMID: 29656171 PMCID: PMC6532975 DOI: 10.1016/j.earlhumdev.2018.04.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 04/06/2018] [Accepted: 04/07/2018] [Indexed: 11/24/2022]
Abstract
BACKGROUND There is evidence that birth size is positively associated with height in later life, but it remains unclear whether this is explained by genetic factors or the intrauterine environment. AIM To analyze the associations of birth weight, length and ponderal index with height from infancy through adulthood within mono- and dizygotic twin pairs, which provides insights into the role of genetic and environmental individual-specific factors. METHODS This study is based on the data from 28 twin cohorts in 17 countries. The pooled data included 41,852 complete twin pairs (55% monozygotic and 45% same-sex dizygotic) with information on birth weight and a total of 112,409 paired height measurements at ages ranging from 1 to 69 years. Birth length was available for 19,881 complete twin pairs, with a total of 72,692 paired height measurements. The association between birth size and later height was analyzed at both the individual and within-pair level by linear regression analyses. RESULTS Within twin pairs, regression coefficients showed that a 1-kg increase in birth weight and a 1-cm increase in birth length were associated with 1.14-4.25 cm and 0.18-0.90 cm taller height, respectively. The magnitude of the associations was generally greater within dizygotic than within monozygotic twin pairs, and this difference between zygosities was more pronounced for birth length. CONCLUSION Both genetic and individual-specific environmental factors play a role in the association between birth size and later height from infancy to adulthood, with a larger role for genetics in the association with birth length than with birth weight.
Collapse
Affiliation(s)
- A Jelenkovic
- Department of Social Research, University of Helsinki, Helsinki, Finland, Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country UPV/EHU, Leioa, Spain
| | - Y Yokoyama
- Department of Public Health Nursing, Osaka City University, Osaka, Japan
| | - R Sund
- Institute of Clinical Medicine, University of Eastern Finland, Kuopio, Finland
| | - YM Hur
- Department of Education, Mokpo National University, Jeonnam, South Korea
| | - JR Harris
- Norwegian Institute of Public Health, Oslo, Norway
| | - I Brandt
- Norwegian Institute of Public Health, Oslo, Norway
| | - TS Nilsen
- Norwegian Institute of Public Health, Oslo, Norway
| | - S Ooki
- Department of Health Science, Ishikawa Prefectural Nursing University, Kahoku, Ishikawa, Japan
| | - V Ullemar
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - C Almqvist
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden, Pediatric Allergy and Pulmonology Unit at Astrid Lindgren Children’s Hospital, Karolinska University Hospital, Stockholm, Sweden
| | - PKE Magnusson
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - KJ Saudino
- Boston University, Department of Psychological and Brain Sciences, Boston, MA, USA
| | - MA Stazi
- Istituto Superiore di Sanità - Centre for Behavioural Sciences and Mental Health, Rome, Italy
| | - C Fagnani
- Istituto Superiore di Sanità - Centre for Behavioural Sciences and Mental Health, Rome, Italy
| | - S Brescianini
- Istituto Superiore di Sanità - Centre for Behavioural Sciences and Mental Health, Rome, Italy
| | - TL Nelson
- Department of Health and Exercise Sciences, Colorado School of Public Health, Colorado State University, USA
| | - KE Whitfield
- Psychology and Neuroscience, Duke University, Durham, NC, USA
| | - A Knafo-Noam
- The Hebrew University of Jerusalem, Jerusalem, Israel
| | - D Mankuta
- Hadassah Hospital Obstetrics and Gynecology Department, Hebrew University Medical School, Jerusalem, Israel
| | - L Abramson
- The Hebrew University of Jerusalem, Jerusalem, Israel
| | - TL Cutler
- The Australian Twin Registry, Centre for Epidemiology and Biostatistics, The University of Melbourne, Melbourne, Victoria, Australia
| | - JL Hopper
- The Australian Twin Registry, Centre for Epidemiology and Biostatistics, The University of Melbourne, Melbourne, Victoria, Australia, Department of Epidemiology, School of Public Health, Seoul National University, Seoul, South Korea
| | - CH Llewellyn
- Health Behaviour Research Centre, Department of Epidemiology and Public Health, Institute of Epidemiology and Health Care, University College London, London, UK
| | - A Fisher
- Health Behaviour Research Centre, Department of Epidemiology and Public Health, Institute of Epidemiology and Health Care, University College London, London, UK
| | - RP Corley
- Institute of Behavioral Science, University of Colorado, Boulder, CO, USA
| | - BM Huibregtse
- Institute of Behavioral Science, University of Colorado, Boulder, CO, USA
| | - CA Derom
- Centre of Human Genetics, University Hospitals Leuven, Leuven, Belgium, Department of Obstetrics and Gynaecology, Ghent University Hospitals, Ghent, Belgium
| | - RF Vlietinck
- Centre of Human Genetics, University Hospitals Leuven, Leuven, Belgium
| | - M Bjerregaard-Andersen
- Bandim Health Project, INDEPTH Network, Bissau, Guinea-Bissau, Research Center for Vitamins and Vaccines, Statens Serum Institute, Copenhagen, Denmark, Department of Endocrinology, Odense University Hospital, Odense, Denmark
| | - H Beck-Nielsen
- Department of Endocrinology, Odense University Hospital, Odense, Denmark
| | - M Sodemann
- Department of Infectious Diseases, Odense University Hospital, Odense, Denmark
| | - RF Krueger
- Department of Psychology, University of Minnesota, Minneapolis, MN, USA
| | - M McGue
- Department of Psychology, University of Minnesota, Minneapolis, MN, USA
| | - S Pahlen
- Department of Psychology, University of Minnesota, Minneapolis, MN, USA
| | | | - KL Klump
- Michigan State University, East Lansing, MI, USA
| | - L Dubois
- School of Epidemiology, Public Health and Preventive Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - M Boivin
- École de psychologie, Université Laval, Québec, Canada, Institute of Genetic, Neurobiological, and Social Foundations of Child Development, Tomsk State University, Russian Federation
| | - M Brendgen
- Département de psychologie, Université du Québec à Montréal, Montréal, Québec, Canada
| | - G Dionne
- École de psychologie, Université Laval, Québec, Canada
| | - F Vitaro
- École de psychoéducation, Université de Montréal, Montréal, Québec, Canada
| | - G Willemsen
- Department of Biological Psychology, VU University Amsterdam, Amsterdam, Netherlands
| | - M Bartels
- Department of Biological Psychology, VU University Amsterdam, Amsterdam, Netherlands
| | - CEM van Beijsterveld
- Department of Biological Psychology, VU University Amsterdam, Amsterdam, Netherlands
| | - JM Craig
- Murdoch Childrens Research Institute, Royal Children’s Hospital, Parkville, Victoria, Australia, Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia
| | - R Saffery
- Murdoch Childrens Research Institute, Royal Children’s Hospital, Parkville, Victoria, Australia, Department of Paediatrics, University of Melbourne, Parkville, Victoria, Australia
| | - F Rasmussen
- Department of Health Sciences, Lund University, Sweden
| | - P Tynelius
- Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
| | - K Heikkilä
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - KH Pietiläinen
- Obesity Research Unit, Research Programs Unit, University of Helsinki, Helsinki, Finland
| | - G Bayasgalan
- Healthy Twin Association of Mongolia, Ulaanbaatar, Mongolia
| | - D Narandalai
- Healthy Twin Association of Mongolia, Ulaanbaatar, Mongolia, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - CMA Haworth
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - R Plomin
- King’s College London, MRC Social, Genetic & Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, London, UK
| | - F Ji
- Department of Noncommunicable Diseases Prevention, Qingdao Centers for Disease Control and Prevention, Qingdao, China
| | - F Ning
- Department of Noncommunicable Diseases Prevention, Qingdao Centers for Disease Control and Prevention, Qingdao, China
| | - Z Pang
- Department of Noncommunicable Diseases Prevention, Qingdao Centers for Disease Control and Prevention, Qingdao, China
| | - E Rebato
- Department of Genetics, Physical Anthropology and Animal Physiology, University of the Basque Country UPV/EHU, Leioa, Spain
| | - AD Tarnoki
- Department of Radiology, Semmelweis University, Budapest, Hungary, Hungarian Twin Registry, Budapest, Hungary
| | - DL Tarnoki
- Department of Radiology, Semmelweis University, Budapest, Hungary, Hungarian Twin Registry, Budapest, Hungary
| | - J Kim
- Department of Epidemiology, School of Public Health, Seoul National University, Seoul, South Korea
| | - J Lee
- Department of Epidemiology, School of Public Health, Seoul National University, Seoul, South Korea
| | - S Lee
- Department of Epidemiology, School of Public Health, Seoul National University, Seoul, South Korea
| | - J Sung
- Department of Epidemiology, School of Public Health, Seoul National University, Seoul, South Korea, Institute of Health and Environment, Seoul National University, Seoul, South Korea
| | - RJF Loos
- The Charles Bronfman Institute for Personalized Medicine, The Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - DI Boomsma
- Department of Biological Psychology, VU University Amsterdam, Amsterdam, Netherlands
| | - TIA Sørensen
- Novo Nordisk Foundation Centre for Basic Metabolic Research (Section of Metabolic Genetics), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark, Department of Public Health (Section of Epidemiology), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - J Kaprio
- Department of Public Health, University of Helsinki, Helsinki, Finland, Institute for Molecular Medicine FIMM, Helsinki, Finland
| | - K Silventoinen
- Department of Social Research, University of Helsinki, Helsinki, Finland, Osaka University Graduate School of Medicine, Osaka University, Osaka, Japan
| |
Collapse
|
23
|
Abstract
Objective: To investigate the application value of serum calprotectin in assessing the activity of IBD Methods: Eighty-five Crohn's disease(CD) and eighty-five Ulcerative colitis(UC) patients at Suzhou Municipal Hospital(North Branch) from August 2015 to January 2017 were enrolled in this study, and eighty-five healthy subjects were selected as controls. Serum level of calprotectin was determined by ELISA. Correlation of serum calprotectin with clinical features of IBD was analyzed. The diagnostic efficacy for CD and UC were assessed by ROC curve. Results: The level of serum calprotectin was significantly higher in IBD patients than in healthy subjects. Positive correlations were found between serum calprotectin level and CRP, ESR, fecal calprotectin level of IBD(ρ=0.341, P<0.001;ρ=0.438, P<0.001;ρ=0.542, P<0.001,respectively). Besides, positive correlations were found between serum calprotectin level with disease activity index(CDAI or Mayo score) of IBD(ρ=0.309, P=0.004;ρ=0.227, P=0.036,respectively).Nevertheless, no correlation was found between serum calprotectin level with location of IBD and disease subtypes(P>0.05).The area under curve(AUC) of serum calprotectin for diagnosis of CD and UC were 0.946 and 0.906, respectively. Conclusions: Serum level of calprotectin is associated with the activity of IBD. As a result,serum level of calprotectin may has the potential to be served as a clinical index of IBD activity.
Collapse
Affiliation(s)
| | | | - Z Pang
- Department of Gastroenterology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| |
Collapse
|
24
|
Chen X, Gui X, Zhang L, Huang F, Zhong H, Pang Z, Wang S, Tang L, Fu L, Peng Y, Shellman Y. Maternal anti-HBVs suppress the immune response of infants to hepatitis B vaccine. J Viral Hepat 2016; 23:955-960. [PMID: 27469237 DOI: 10.1111/jvh.12572] [Citation(s) in RCA: 7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 07/02/2016] [Indexed: 12/09/2022]
Abstract
It is still controversial whether maternal anti-HBV antibodies (anti-HBVs) affect the infants' immune response to hepatitis B virus (HBV) vaccination. This multicentre study aims to address this question. First, we determined whether the transplacental transfer of maternal anti-HBVs occurs by measuring the titres of 90 anti-HBVs-positive pregnant women and their newborns. The anti-HBVs-positive rates of newborns ranged from 89.7% to 100.0%, depending on the maternal anti-HBVs titres. Secondly, we investigated the effects of maternal anti-HBVs on the immune response of infants to HBV vaccination. A total of 1063 mother-and-infant pairs were enrolled and divided into three groups with maternal anti-HBVs titres of <10 IU/L (negative - 37.9%), 10-499 and ≥500 IU/L. The infants' anti-HBVs-positive rate and titres were negatively correlated with maternal anti-HBVs titres: the anti-HBVs-positive rate of infants were 88.9% (360/405), 84.5% (381/451) and 77.3% (160/207) in mothers with low, intermediate and high antibody titres, respectively, P<.0001. Median titres of anti-HBVs (IU/L) among infants were 169.1, 141.0 and 79.4, respectively, P=.020. One hundred and sixty-two infants were negative for anti-HBVs after the standard vaccination, and 120 of 131 of these infants (91.6%) reached anti-HBVs positivity after the first "booster" dose. The maternal anti-HBVs titres did not significantly affect infant response to this booster. In summary, transplacental transfer of anti-HBVs occurs and high titres of maternal anti-HBVs may suppress the immune response of infants to the standard HBV vaccination. The current schedule of the 0, 1 and 6 month may not be the optimal choice of infants with anti-HBVs-positive mothers.
Collapse
Affiliation(s)
- X Chen
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Wuchang District, Wuhan, Hubei Province, China
| | - X Gui
- Department of Infectious Diseases, Zhongnan Hospital of Wuhan University, Wuchang District, Wuhan, Hubei Province, China
| | - L Zhang
- Department of Infection Control, Qingdao Municipal Hospital, Qingdao, China
| | - F Huang
- Department of Obstetrics and Gynecology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - H Zhong
- Mother and Child Hospital, Wuxue, Huanggang, China
| | - Z Pang
- Centers for Disease Control and Prevention, Chongyang County, Xianning, China
| | - S Wang
- Centers for Disease Control and Prevention, Xiaonan District, Xiaogan, China
| | - L Tang
- Centers for Disease Control and Prevention, Chibi, Xianning, China
| | - L Fu
- Centers for Disease Control and Prevention, Chibi, Xianning, China
| | - Y Peng
- Centers for Disease Control and Prevention, Guangshui, Shuizhou, China
| | - Y Shellman
- Department of Dermatology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| |
Collapse
|
25
|
Pang Z, Sun G, Junkins RD, Lin TJ. AIM2 inflammasome is dispensable for the host defense against Pseudomonas aeruginosa infection. Cell Mol Biol (Noisy-le-grand) 2015; 61:63-70. [PMID: 26107502] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 06/21/2015] [Indexed: 06/04/2023]
Abstract
Respiratory tract infection with Pseudomonas aeruginosa is a major cause of hospital—acquired pneumonia in immune—compromised individuals. Lung infection with P. aeruginosa is often associated with production of various inflammatory cytokines including IL—1β. Production of IL—1β requires proteolytic cleavage by a multiprotein complex termed inflammasome. AIM2 inflammasome recognizes foreign cytosolic double stranded DNA. A role of AIM2 in P. aeruginosa infection has not been reported previously. In this study, we found that P. aeruginosa infection induced degradation of AIM2 protein in macrophages and induction of AIM2 mRNA expression in macrophages and in the lung of mice. Interestingly, P. aeruginosa infection induced a similar level of IL—1β, IL—6 and TNF production in wild—type and AIM2—deficient mice. Similarly, no significant differences in bacterial clearance, neutrophil infiltration and NF—κB activation were observed between wild—type and AIM2—deficient mice following P. aeruginosa lung infection. Our data suggest that AIM2 inflammasome is dispensable for the host defense against P. aeruginosa infection.
Collapse
Affiliation(s)
- Z Pang
- Saint Mary's University Biology Department Halifax Canada
| | - G Sun
- Saint Mary's University Biology Department Halifax Canada genlou.sun@smu.ca
| | - R D Junkins
- Dalhousie University Department of Microbiology and Immunology Halifax Canada
| | - T J Lin
- Dalhousie University Department of Microbiology and Immunology Halifax Canada tong—jun.lin@dal.ca
| |
Collapse
|
26
|
Hu C, Wang Z, Pang Z, Lu W, Cai X, Yang J, Wang D, Cao P. Guizhi Fuling capsule, an ancient Chinese formula, attenuates endometriosis in rats via induction of apoptosis. Climacteric 2014; 17:410-6. [DOI: 10.3109/13697137.2013.876618] [Citation(s) in RCA: 31] [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: 11/13/2022]
|
27
|
Xu J, Rees G, Yin X, Song C, Han Y, Ge H, Pang Z, Xu W, Tang Y, Friston K, Liu S. Spontaneous neuronal activity predicts intersubject variations in executive control of attention. Neuroscience 2014; 263:181-92. [PMID: 24447598 DOI: 10.1016/j.neuroscience.2014.01.020] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [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: 09/23/2013] [Revised: 01/10/2014] [Accepted: 01/10/2014] [Indexed: 01/27/2023]
Abstract
Executive control of attention regulates our thoughts, emotion and behavior. Individual differences in executive control are associated with task-related differences in brain activity. But it is unknown whether attentional differences depend on endogenous (resting state) brain activity and to what extent regional fluctuations and functional connectivity contribute to individual variations in executive control processing. Here, we explored the potential contribution of intrinsic brain activity to executive control by using resting-state functional magnetic resonance imaging (fMRI). Using the amplitude of low-frequency fluctuations (ALFF) as an index of spontaneous brain activity, we found that ALFF in the right precuneus (PCUN) and the medial part of left superior frontal gyrus (msFC) was significantly correlated with the efficiency of executive control processing. Crucially, the strengths of functional connectivity between the right PCUN/left msFC and distributed brain regions, including the left fusiform gyrus, right inferior frontal gyrus, left superior frontal gyrus and right precentral gyrus, were correlated with individual differences in executive performance. Together, the ALFF and functional connectivity accounted for 67% of the variability in behavioral performance. Moreover, the strength of functional connectivity between specific regions could predict more individual variability in executive control performance than regionally specific fluctuations. In conclusion, our findings suggest that spontaneous brain activity may reflect or underpin executive control of attention. It will provide new insights into the origins of inter-individual variability in human executive control processing.
Collapse
Affiliation(s)
- J Xu
- Research Center for Sectional and Imaging Anatomy, Shandong University School of Medicine, Jinan, Shandong, China; UCL Institute of Cognitive Neuroscience, London, United Kingdom; Wellcome Trust Centre for Neuroimaging, University College London (UCL) Institute of Neurology, London, United Kingdom
| | - G Rees
- UCL Institute of Cognitive Neuroscience, London, United Kingdom; Wellcome Trust Centre for Neuroimaging, University College London (UCL) Institute of Neurology, London, United Kingdom
| | - X Yin
- Research Center for Sectional and Imaging Anatomy, Shandong University School of Medicine, Jinan, Shandong, China
| | - C Song
- UCL Institute of Cognitive Neuroscience, London, United Kingdom
| | - Y Han
- Department of Radiology, Affiliated Hospital of Medical College, Qingdao University, Qingdao, Shandong, China
| | - H Ge
- Research Center for Sectional and Imaging Anatomy, Shandong University School of Medicine, Jinan, Shandong, China
| | - Z Pang
- Department of Epidemiology, Qingdao Municipal Central for Disease Control and Prevention, Qingdao, Shandong, China
| | - W Xu
- Department of Radiology, Affiliated Hospital of Medical College, Qingdao University, Qingdao, Shandong, China
| | - Y Tang
- Research Center for Sectional and Imaging Anatomy, Shandong University School of Medicine, Jinan, Shandong, China
| | - K Friston
- Wellcome Trust Centre for Neuroimaging, University College London (UCL) Institute of Neurology, London, United Kingdom
| | - S Liu
- Research Center for Sectional and Imaging Anatomy, Shandong University School of Medicine, Jinan, Shandong, China.
| |
Collapse
|
28
|
Li J, Liu J, Pang Z, Wang X. Characteristics of Chemistry and Stable Isotopes in Groundwater of the Chaobai River Catchment, Beijing. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.proeps.2013.03.092] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
29
|
Chen GC, Lv DB, Pang Z, Dong JY, Liu QF. Dietary fiber intake and stroke risk: a meta-analysis of prospective cohort studies. Eur J Clin Nutr 2012; 67:96-100. [DOI: 10.1038/ejcn.2012.158] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
30
|
|
31
|
Pang Z, Laplante NE, Filkins RJ. Dark pixel intensity determination and its applications in normalizing different exposure time and autofluorescence removal. J Microsc 2011; 246:1-10. [PMID: 22191641 DOI: 10.1111/j.1365-2818.2011.03581.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The purpose of this study is to investigate how to scale pixel intensity acquired from one exposure time to another. This is required when comparing grayscale images acquired at different exposure times and other image processing such as autofluorescence removal. Pixel intensity is linear to exposure time as long as images are acquired at the linear range of a camera, but importantly there exists an intercept, which is set by the camera. We termed this intercept as dark pixel intensity, as it is the pixel intensity under conditions of no light and zero exposure time. Dark pixel intensity is determined by camera's readout noise (electron/pixel), gain, and DC offset. Knowing dark pixel intensity, image acquired from one exposure time can be linearly scaled to an image at a different exposure time. Dark pixel intensity can be directly measured by obtaining an image at no light and zero (or minimum) exposure time. It can be also indirectly calculated by capturing images at a series of exposure times. Finally, the prestained and poststained images were acquired at their optimal exposures and autofluorescence was completely removed by normalizing images with the exposure time ratio and dark pixel intensity followed by subtraction.
Collapse
Affiliation(s)
- Z Pang
- Diagnostics and Biomedical Technologies, General Electric Company Global Research Center, Niskayuna, NY 12309, USA.
| | | | | |
Collapse
|
32
|
Pang Z, Zhang D, Li S, Duan H, Hjelmborg J, Kruse TA, Kyvik KO, Christensen K, Tan Q. Multivariate modelling of endophenotypes associated with the metabolic syndrome in Chinese twins. Diabetologia 2010; 53:2554-61. [PMID: 20878385 DOI: 10.1007/s00125-010-1907-5] [Citation(s) in RCA: 9] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2010] [Accepted: 08/24/2010] [Indexed: 11/28/2022]
Abstract
AIMS/HYPOTHESIS The common genetic and environmental effects on endophenotypes related to the metabolic syndrome have been investigated using bivariate and multivariate twin models. This paper extends the pairwise analysis approach by introducing independent and common pathway models to Chinese twin data. The aim was to explore the common genetic architecture in the development of these phenotypes in the Chinese population. METHODS Three multivariate models including the full saturated Cholesky decomposition model, the common factor independent pathway model and the common factor common pathway model were fitted to 695 pairs of Chinese twins representing six phenotypes including BMI, total cholesterol, total triacylglycerol, fasting glucose, HDL and LDL. Performances of the nested models were compared with that of the full Cholesky model. RESULTS Cross-phenotype correlation coefficients gave clear indication of common genetic or environmental backgrounds in the phenotypes. Decomposition of phenotypic correlation by the Cholesky model revealed that the observed phenotypic correlation among lipid phenotypes had genetic and unique environmental backgrounds. Both pathway models suggest a common genetic architecture for lipid phenotypes, which is distinct from that of the non-lipid phenotypes. The declining performance with model restriction indicates biological heterogeneity in development among some of these phenotypes. CONCLUSIONS/INTERPRETATION Our multivariate analyses revealed common genetic and environmental backgrounds for the studied lipid phenotypes in Chinese twins. Model performance showed that physiologically distinct endophenotypes may follow different genetic regulations.
Collapse
Affiliation(s)
- Z Pang
- Qingdao Center for Disease Control and Prevention, No 175, Shandong Road, Sifang District, 266033 Qingdao, China.
| | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Liu S, Zhou X, Xiong Y, Yang Y, Wang C, Qu X, Xie Y, Hu H, Pang Z. APOLIPOPROTEIN E POLYMORPHISM AND CORONARY HEART DISEASE AND TYPE 2 DIABETESND TYPE 2 DIABETES. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70423-9] [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: 11/28/2022]
|
34
|
Liu D, Pang Z, Lloyd SR. A neural network method for detection of obstructive sleep apnea and narcolepsy based on pupil size and EEG. ACTA ACUST UNITED AC 2008; 19:308-18. [PMID: 18269961 DOI: 10.1109/tnn.2007.908634] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Electroencephalogram (EEG) is able to indicate states of mental activity ranging from concentrated cognitive efforts to sleepiness. Such mental activity can be reflected by EEG energy. In particular, intrusion of EEG theta wave activity into the beta activity of active wakefulness has been interpreted as ensuing sleepiness. Pupil behavior can also provide information regarding alertness. This paper develops an innovative signal classification method that is capable of differentiating subjects with sleep disorders which cause excessive daytime sleepiness (EDS) from normal control subjects who do not have a sleep disorder based on EEG and pupil size. Subjects with sleep disorders include persons with untreated obstructive sleep apnea (OSA) and narcolepsy. The Yoss pupil staging rule is used to scale levels of wakefulness and at the same time theta energy ratios are calculated from the same 2-s sliding windows by Fourier or wavelet transforms. Then, an artificial neural network (NN) of modified adaptive resonance theory (ART2) is utilized to identify the two groups within a combined group of subjects including those with OSA and healthy controls. This grouping from the NN is then compared with the actual diagnostic classification of subjects as OSA or controls and is found to be 91% accurate in differentiating between the two groups. The same algorithm results in 90% correct differentiation between narcoleptic and control subjects.
Collapse
Affiliation(s)
- D Liu
- Department of Electrical and Computer Engineering, University of Illinois at Chicago, Chicago, IL 60607-7053, USA.
| | | | | |
Collapse
|
35
|
Kong ZP, Bao RL, Zhou XG, Pang Z, Jiang L, Chen ZX, Yue B. Crystal structure of hexaaquabis{2-[N-(4-pyridylcarbonyl)hydrazido]- propionato}dimanganese(II) tetrahydrate, Mn2(H2O)6(C9H7N3O3)2 · 4H2O. ACTA ACUST UNITED AC 2005. [DOI: 10.1524/ncrs.2005.220.14.85] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
36
|
Peng G, Pang Z. [In vitro modulation of the invasive and metastatic potentials of human hepatocellular carcinoma by interlukin-2]. Zhonghua Gan Zang Bing Za Zhi 2001; 9:303-5. [PMID: 11676880] [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: 02/22/2023]
Abstract
OBJECTIVE To investigate the effects of interlukin-2 (IL-2) on the in vitro invasiveness and the expression of several cell surface antigens related to invasive and metastatic potentials of human hepatocellular carcinoma (HCC) QGY-7701 cell line. METHODS QGY-7701 cells were incubated with high concentration of IL-2 or low concentration of IL-2 in different time. The expression of ICAM-1, CD(44) and HLA-I of the tumor cells was determined by fluorescence-activated cell sorter (FACS) analysis The tumor cell binding affinity to extracellular matrix components was measured by cell attachment assay. The degree of homotypic aggregation was quantified by cell aggregation assay. RESULTS IL-2 treatment exhibited enhanced expression of ICAM-1 (from 8.3% to 20.5% after high concentration of IL-2 treatment and 17.3% after low concentration of IL-2 treatment) and HLA-I (from 9.8% to 25.4% and 22.1%, respectively after high and low concentration of IL-2 treatment), suppression of CD(44) (from 26.4% to 12.5% and 11.6%, respectively) on HCC cell line and decreased binding affinity to type IV collagen (from 23.5% to 12.4%, 32.3% to 13.8%, 45.7% to 19.6% at 20 min, 40 min and 60 min, respectively after high concentration of IL-2 treatment, and 9.6%, 12.5% and 17.9%, respectively after low concentration of IL-2 treatment) and fibronectin (from 18.6% to 14.1%, 31.2% to 18.4%, 44.5% to 20.5% at 20 min, 40 min and 60 min, respectively after high concentration of IL-2 treatment, and 14.6%, 17.1% and 18.9%, respectively after low concentration of IL-2 treatment) and the degree of homotypic aggregation (from 58.3% to 26.5%, 85.4% to 37.6%, 88.6% to 42.3% at 20 min, 40 min and 60 min, respectively after high concentration of IL-2 treatment, and 25.0%, 36.4% and 42.6%, respectively after low concentration of IL-2 treatment)of HCC cells. CONCLUSIONS IL-2 may directly alter tumor properties associated with invasive and metastatic phenotypes of HCC cells, and can inhibit the invasive and metastatic potentials of HCC cells.
Collapse
Affiliation(s)
- G Peng
- Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | | |
Collapse
|
37
|
Gajendiran M, Ling GY, Pang Z, Xu ZC. Differential changes of synaptic transmission in spiny neurons of rat neostriatum following transient forebrain ischemia. Neuroscience 2001; 105:139-52. [PMID: 11483308 DOI: 10.1016/s0306-4522(01)00163-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Spiny neurons in neostriatum are vulnerable to cerebral ischemia. To reveal the mechanisms underlying the postischemic neuronal damage, the spontaneous activities, evoked postsynaptic potentials and membrane properties of spiny neurons in rat neostriatum were compared before and after transient forebrain ischemia using intracellular recording and staining techniques in vivo. In control animals the membrane properties of spiny neurons were about the same between the left and right neostriatum but the inhibitory synaptic transmission was stronger in the left striatum. After severe ischemia, the spontaneous firing and membrane potential fluctuation of spiny neurons dramatically reduced. The cortically evoked initial excitatory postsynaptic potentials were suppressed after ischemia indicated by the increase of stimulus threshold and the rise time of these components. The paired-pulse facilitation test indicated that such suppression might involve presynaptic mechanisms. The inhibitory postsynaptic potentials in spiny neurons were completely abolished after ischemia and never returned to the control levels. A late depolarizing postsynaptic potential that was elicited from approximately 5% of the control neurons by cortical stimulation could be evoked from approximately 30% of the neurons in the left striatum and approximately 50% in the right striatum after ischemia. The late depolarizing postsynaptic potential could not be induced after acute thalamic transection. The intrinsic excitability of spiny neurons was suppressed after ischemia evidenced by the significant increase of spike threshold and rheobase as well as the decrease of repetitive firing rate following ischemia. The membrane input resistance and time constant increased within 6 h following ischemia and the amplitude of fast afterhyperpolarization significantly increased after ischemia. These results indicate the depression of excitatory monosynaptic transmission, inhibitory synaptic transmission and excitability of spiny neurons after transient forebrain ischemia whereas the excitatory polysynaptic transmission in neostriatum was potentiated. The facilitation of excitatory polysynaptic transmission is stronger in the right neostriatum than in the left neostriatum after ischemia. The suppression of inhibitory component and the facilitation of excitatory polysynaptic transmission may contribute to the pathogenesis of neuronal injury in neostriatum after transient cerebral ischemia.
Collapse
Affiliation(s)
- M Gajendiran
- Department of Anatomy and Cell Biology, Indiana University School of Medicine, 635 Barnhill Drive, MS 507, Indianapolis, IN 46202, USA
| | | | | | | |
Collapse
|
38
|
Abstract
The synaptic transmission and intrinsic membrane properties of spiny neurons in rat neostriatum were studied after unilateral dopamine depletion using in vivo intracellular recording and staining techniques. Two to four weeks after dopamine denervation, the spontaneous firing rate of spiny neurons increased and the spontaneous membrane potential fluctuation stayed at a more depolarized state for longer periods of time. The amplitude of cortically evoked initial excitatory postsynaptic potentials increased and a late excitatory postsynaptic potential that was occasionally found in control neurons was elicited from 23% of spiny neurons after dopamine denervation. No significant changes in intrinsic membrane properties of spiny neurons were observed after dopamine denervation. These results suggest that dopamine inhibits excitatory synaptic transmission of spiny neurons in naïve animals.
Collapse
Affiliation(s)
- Z Pang
- Department of Anatomy & Cell Biology, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, IN 46202, USA
| | | | | | | |
Collapse
|
39
|
Li X, Luo H, Pang Z, Huang S, Liang Z. [Purification and characterization of 2-carbonyl reductase from marine bacteria Bacillus sp]. Wei Sheng Wu Xue Bao 2001; 41:463-8. [PMID: 12552913] [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: 02/28/2023]
Abstract
ANADPH-dependent 2-Oxoaldehyde reductase was isolated and purified from a marine bacteria Bacillus sp. The purification procedure involved ammonium sulfate fractionation and Q Sepharose FF, Hydroxyapatite, Sephadex G-100 column chromatographies. The specific activity of the purified enzyme was increased by 141.1 folds over crude extract and the recovery yield was 11.4%. 2-Oxoaldehyde compounds were found to be speciall good substrates. The optimum pH of the enzyme activity was 6.2-6.6. The Km coefficient for 3-deoxyglucosone was 2.5 mmol/L. The molecular weight of the enzyme was estimated to be 33 kD The enzyme activity is stable below 30 degrees C and pH 5.0-8.0. EDTA, beta-mercaptoethanol and dithiothreitol enhanced the enzyme activity. On the other hand, the enzyme activity was partially lost by idoacetic acid or N-ethylmaleimide.
Collapse
Affiliation(s)
- X Li
- Industrial Experimental Centre of GuangXi University, Nanning 530004, China
| | | | | | | | | |
Collapse
|
40
|
He L, Chen X, Qu J, Gu Y, Fang X, Hong Q, Huang S, Zhou X, Pang Z, Sheng A. [Comparative studies of treatments with cefepime and ceftazidime in patients with pneumonia]. Zhonghua Jie He He Hu Xi Za Zhi 2000; 23:689-91. [PMID: 11225037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
|
41
|
Hu Y, Pang Z, Wang Q, Yang G, Cheng N. [A histopathologic and immunohistochemical study of 68 cases of hemangioblastoma]. Hua Xi Yi Ke Da Xue Xue Bao 2000; 31:380-2. [PMID: 12545840] [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: 02/28/2023]
Abstract
The aim of this study was to evaluate the histologic characteristics of hemangioblastoma (HB) and investigate the histogenesis of its stromal cells. Sixty-eight cases of hemangioblastoma were studied by light microscopy and thirty-three cases were examined by immunohistochemical stainning. Forty-eight of the 68 patients were males and 20 were females. The average age was 37. Fifty-two cases (76.6%) had been present for two months to one year before the diagnosis was made. Sixty cases (88.2%) arose in the cerebellum. Fifty cases (73.5%) appeared as cystic nodules. Histologically, the 68 cases of HB were further categorized into three subtypes: typical (30 cases), cellular (21 cases) and reticular (17 cases). In 33 cases, the stromal cell were positive for NSE, but negative for F-VIII, UEA-1, GFAP and EMA. In summary, there are three essential histologic categories of hemangioblastoma, and its stromal cells may well have the characters of neuroendocrine differentiation.
Collapse
Affiliation(s)
- Y Hu
- Department of Pathology, First Affiliated Hospital, WCUMS, Chengdu 610041
| | | | | | | | | |
Collapse
|
42
|
Pang Z, Zuo J, Morgan JI. Cbln3, a novel member of the precerebellin family that binds specifically to Cbln1. J Neurosci 2000; 20:6333-9. [PMID: 10964938 PMCID: PMC6772977] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2000] [Revised: 06/06/2000] [Accepted: 06/09/2000] [Indexed: 02/17/2023] Open
Abstract
Precerebellin (Cbln1) is the precursor of the brain-specific hexadecapeptide cerebellin. Although cerebellin has properties of a conventional neuropeptide, its function is controversial because Cbln1 has structural features characteristic of circulating atypical collagens. Cbln1 is related to the three subunits of the complement C1q complex. Therefore, we hypothesized that Cbln1 participated in analogous heteromeric complexes with precerebellin-related proteins. Using LexA-Cbln1 as bait in a yeast two-hybrid screen, we isolated a cDNA encoding a novel Cbln1-related protein, designated Cbln3. The gene encoding cbln3 had the same intron-exon structure as cbln1 but mapped to a different mouse chromosome (14). The deduced amino acid sequence of Cbln3 was 55% identical to Cbln1 and also contained a C1q signature domain and signal sequence for secretion. In addition to binding avidly to Cbln3, Cbln1 also formed homomeric complexes. In contrast, Cbln3 homomeric association was weak. These interactions exhibited specificity because C1qB bound to neither Cbln1 nor Cbln3. Like cbln1, cbln3 was expressed in the cerebellum and dorsal cochlear nucleus in which it was detected in granule neurons. Because Cbln1 and Cbln3 are coexpressed in the brain and interact avidly, they may function as a secreted heteromeric complex in vivo.
Collapse
Affiliation(s)
- Z Pang
- Department of Developmental Neurobiology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA
| | | | | |
Collapse
|
43
|
Pang Z, Wang D, Hao J, Zhu C, Wang A, Li J. The effect of coriaria lactone on NMDA receptor mediated currents in rat hippocampal CA1 neurons. Curr Med Sci 2000; 20:6-9. [PMID: 12845743 DOI: 10.1007/bf02887662] [Citation(s) in RCA: 2] [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] [Received: 10/15/1999] [Indexed: 11/29/2022]
Abstract
To investigate the exact mechanism of epileptogenesis induced by coriaria lactone (CL), the effect of CL on NMDA receptor mediated current (IAsp) in rat hippocampal CA1 neurons was investigated by using nystatin perforated whole-cell patch clamp. 10(-6)-10(-4) mol/L Asp acted on NMDA receptors and elicited an inward current (IAsp) at a holding potential (VH) of -40 mV in presence of 10(-6) mol/L glycine and absence of Mg2+ extracellularly. CL enhanced NMDA receptor mediated current induced by Asp, but had no effect on threshold concentration, EC50, Hill coefficient as well as maximal-effect concentration and reversal potential of IAsp. The effect had no relationship with holding potential. These results showed that CL could enhance NMDA receptor mediated current to increase [Ca2+]i of neurons by acting on Gly site, thereby inducing epilepsy.
Collapse
Affiliation(s)
- Z Pang
- Department of Anatomy, Fourth Military Medical University, Xi'an 710032
| | | | | | | | | | | |
Collapse
|
44
|
Maragos WF, Jakel RJ, Pang Z, Geddes JW. 6-Hydroxydopamine injections into the nigrostriatal pathway attenuate striatal malonate and 3-nitropropionic acid lesions. Exp Neurol 1998; 154:637-44. [PMID: 9878198 DOI: 10.1006/exnr.1998.6918] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The mitochondrial inhibitors malonate and 3-nitropropionic (3NP) acid are potent neurotoxins in vivo. Administration of these compounds results in neuronal loss similar to that seen in Huntington's disease. Although the mechanism of cell death produced by these compounds likely involves activation of N-methyl-D-aspartate receptors, it remains unclear why the striatum demonstrates regional susceptibility to the toxicity of these and other mitochondrial poisons. We hypothesized that dopamine, a weak neurotoxin that occurs in high concentrations in the striatum, may contribute to the neuronal damage caused by mitochondrial inhibition. We investigated whether depletion of striatal dopamine using the catecholaminergic toxin 6-hydroxydopamine would attenuate lesions induced by mitochondrial inhibition. We found that dopamine depletion reduced significantly the extent of histological damage in the striatum elicited by both intraparenchymal injections of 0.8 micromol malonate and 20 mg/kg systemic administration of 3NP. These data suggest that dopamine or one of its metabolites may contribute to mitochondrial toxin-induced cell death.
Collapse
Affiliation(s)
- W F Maragos
- Department of Neurology, University of Kentucky Medical Center, Lexington, Kentucky, 40536-0284, USA
| | | | | | | |
Collapse
|
45
|
Zhou M, Chen Y, Liu S, Ding Z, Pang Z, Wan J. Oxidative and malondialdehyde modification of low-density lipoprotein: a comparative study of binding and degradation by macrophages and endothelial cells. Br J Biomed Sci 1998; 55:192-8. [PMID: 10367404] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
Comparative study of oxidatively modified low-density lipoprotein (Ox-LDL) and malondialdehyde-modified low-density lipoprotein (MDA-LDL) is important for further understanding the biological properties of Ox-LDL, such as its toxic effects, immunogenicity and multiplicity of scavenger receptor binding. In this study, the characteristics of Ox-LDL and MDA-LDL binding and degradation were compared. The results show that when their degree of modification (as determined by relative electrophoretic mobility) was similar, the binding and degradation of Ox-LDL by the macrophage cell line P388D1 were greater than those of MDA-LDL. The binding and degradation of Ox-LDL by macrophages and human umbilical vein endothelial cells increased with the degree of modification. In addition, Ox-LDL or MDA-LDL could competitively inhibit binding of labelled Ox-LDL or labelled MDA-LDL to their respective macrophage receptors, and could partially inhibit each other.
Collapse
Affiliation(s)
- M Zhou
- Research Laboratory of Free Radical Medicine, First Military Medical University, Guangzhou, People's Republic of China
| | | | | | | | | | | |
Collapse
|
46
|
Pang Z, Chu Q, Xu Y. [Research on risk factors of 5 types of viral hepatities among population with high risk behaviors]. Zhonghua Liu Xing Bing Xue Za Zhi 1998; 19:141-3. [PMID: 10322729] [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: 02/12/2023]
Abstract
Epidemiological and serological survey on five types of viral hepatities (hepatitis A-hepatitis E) was conducted from October 1994 to December 1996 among 119 labourers returned from abroad, including 55 female prostitutes, 86 medical workers, 88 STD patients and 88 paid blood donors. HAV infection rates for all of the 5 groups were above 83%. HBV infection rate showed significantly different (chi 2 = 3.86, P < 0.05) between medical workers (53.49%) and the control group (30.43%). A significant difference (chi 2 = 5.36, P < 0.05) between HBV infection among prostitutes (52.73%) and control group (26.67%) was also noticed. In all the five groups, none was found to be anti-HDV positive. The HEV infection rates for the medical workers, prostitutes, blood donors, returned labourers and STD patients were 1.16%, 3.64%, 2.27%, 5.88% and 6.82%, whereas the anti-HCV positive rates were 1.16%, 3.64%, 0.00%, 0.00% and 1.14%, among them respectively.
Collapse
Affiliation(s)
- Z Pang
- Sanitation and Anti-epidemic Station of Qingdao City, Shandong Province
| | | | | |
Collapse
|
47
|
Abstract
In this paper, we describe the status of the exploration and use of the Ginkgo biloba leaves in China. We emphasize the need for careful studies of the intra-specific genetic diversity of Ginkgo biloba since genetic variation within this species may result in significant differences between the chemical and pharmacological properties of the different sub-species. It is therefore imperative that we catalog the intraspecific diversity of Ginkgo biloba L., and we stress that it is important to conserve this diversity since different subspecies may have different pharmacochemical properties resulting in differential medical usages.
Collapse
Affiliation(s)
- Z Pang
- Nanjing Botanical Garden, Institute of Botany, Jiangsu Province & Academia, Sinica, P.R. of China
| | | | | |
Collapse
|
48
|
Chen Y, Zhou M, Liu S, Ding Z, Lou N, Pang Z, Wan J. Oxidative and malondialdehyde modification of low-density lipoprotein: a comparative study. Br J Biomed Sci 1997; 54:159-65. [PMID: 9499592] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Low-density lipoprotein (LDL) was modified with copper ions (Cu2+) and malondialdehyde (MDA), and the differences were compared. The results show that both oxidative and MDA modification produce a decrease in free amino groups in LDL and enhance its electrophoretic mobility on agarose gel, and that these observations are linked. However, differences produced by the two forms of modification were observed. Oxidative modification of LDL involves free radical-mediated lipid peroxidation which produces large amounts of thiobarbituric acid-reactive substances (TBARS) and conjugated dienes. In addition, vitamin E was reduced considerably and cholesterol lowered, and apolipoprotein B (apo B) fragmentation and aggregation were seen. Similar changes were not seen with MDA modification which does not involve lipid peroxidation. Fluorescence emission spectra of both forms of modified LDL show that emission intensity increases gradually as the modification progresses, but maximum emission wavelength and spectrum patterns are not the same. These findings may be of some significance in the study of the antigenicity, scavenger receptor multiplicity and toxic effects of modified LDL.
Collapse
Affiliation(s)
- Y Chen
- Research Laboratory of Free Radical Medicine, First Military Medical University, Guangzhou, People's Republic of China
| | | | | | | | | | | | | |
Collapse
|
49
|
Keller JN, Pang Z, Geddes JW, Begley JG, Germeyer A, Waeg G, Mattson MP. Impairment of glucose and glutamate transport and induction of mitochondrial oxidative stress and dysfunction in synaptosomes by amyloid beta-peptide: role of the lipid peroxidation product 4-hydroxynonenal. J Neurochem 1997; 69:273-84. [PMID: 9202320 DOI: 10.1046/j.1471-4159.1997.69010273.x] [Citation(s) in RCA: 324] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Deposits of amyloid beta-peptide (A beta), reduced glucose uptake into brain cells, oxidative damage to cellular proteins and lipids, and excitotoxic mechanisms have all been suggested to play roles in the neurodegenerative process in Alzheimer's disease. Synapse loss is closely correlated with cognitive impairments in Alzheimer's disease, suggesting that the synapse may be the site at which degenerative mechanisms are initiated and propagated. We report that A beta causes oxyradical-mediated impairment of glucose transport, glutamate transport, and mitochondrial function in rat neocortical synaptosomes. A beta induced membrane lipid peroxidation in synaptosomes that occurred within 1 h of exposure; significant decreases in glucose transport occurred within 1 h of exposure to A beta and decreased further with time. The lipid peroxidation product 4-hydroxynonenal conjugated to synaptosomal proteins and impaired glucose transport; several antioxidants prevented A beta-induced impairment of glucose transport, indicating that lipid peroxidation was causally linked to this adverse action of A beta. FeSO4 (an initiator of lipid peroxidation), A beta, and 4-hydroxynonenal each induced accumulation of mitochondrial reactive oxygen species, caused concentration-dependent decreases in 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide reduction, and reduced cellular ATP levels significantly. A beta also impaired glutamate transport, an effect blocked by antioxidants. These data suggest that A beta induces membrane lipid peroxidation, which results in impairment of the function of membrane glucose and glutamate transporters, altered mitochondrial function, and a deficit in ATP levels; 4-hydroxynonenal appears to be a mediator of these actions of A beta. These data suggest that oxidative stress occurring at synapses may contribute to the reduced glucose uptake and synaptic degeneration that occurs in Alzheimer's disease patients. They further suggest a sequence of events whereby oxidative stress promotes excitotoxic synaptic degeneration and neuronal cell death in a variety of different neurodegenerative disorders.
Collapse
Affiliation(s)
- J N Keller
- Sanders-Brown Research Center on Aging, Department of Biological Sciences, University of Kentucky, Lexington 40536-0230, U.S.A
| | | | | | | | | | | | | |
Collapse
|
50
|
Abstract
Normal human diploid fibroblasts (HF) have a limited life span, undergo senescence, and rarely, if ever, spontaneously immortalize in culture. Introduction of the gene for T antigen encoded by the DNA virus SV40 extends the life span of HF and increases the frequency of immortalization; however, immortalization requires both T-dependent and T-independent functions. We previously generated independent SV40-transformed non-immortal (pre-immortal) HF cell lines from which we then obtained immortal sublines as part of a multifaceted approach to identify functions responsible for immortalization. In this study we undertook a search for cellular mRNAs which are differentially expressed upon immortalization. A lambda cDNA library was prepared from a pre-immortal SV40-transformed HF (HF-C). We screened the library with a subtracted probe enriched for sequences present in HF-C and reduced in immortal AR5 cells. A more limited screen was also employed for sequences overexpressed in AR5 using a different strategy. Alterations in the level of mRNAs in AR5 encoding functions relevant to signal transduction pathways were identified; however, most cDNAs encoded novel sequences. In an effort to clarify which of the altered mRNAs are most relevant to immortalization, we performed Northern analysis with RNA prepared from three paired sets of independent pre-immortal and immortal (4 cell lines) SV40-transformants using eight cloned cDNAs which show reduced expression in AR5. Three of these were reduced in additional immortal cell lines as well; one, J4-4 (unknown function) is reduced in all the immortal cell lines tested; a second, J4-3 (possible PP2C type phosphatase) is reduced in 2 of the 3 matched sets; and a third, J2-2 (unknown function) is reduced in 2 unrelated immortal cell lines. Although the roles of these genes are as yet unclear, their further analysis should extend our understanding of the molecular bases for immortalization. In particular, the patterns of expression of J4-4 and J4-3 strongly suggest that they are involved in the process of immortalization and/or can serve as target genes for assessing regulators of gene expression in this process.
Collapse
Affiliation(s)
- J Pardinas
- Department of Microbiology and Molecular Genetics, UMDNJ-New Jersey Medical School, Newark 07103, USA
| | | | | | | | | | | | | | | |
Collapse
|