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Zheng L, Li B, Lei L, Wang LJ, Zeng ZP, Yang JD. Effect of screening colonoscopy frequency on colorectal cancer mortality in patients with a family history of colorectal cancer. World J Gastrointest Oncol 2024; 16:354-363. [PMID: 38425395 PMCID: PMC10900162 DOI: 10.4251/wjgo.v16.i2.354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/13/2023] [Accepted: 12/11/2023] [Indexed: 02/02/2024] Open
Abstract
BACKGROUND Colorectal cancer is a common malignant tumor in China, and its incidence in the elderly is increasing annually. Inflammatory bowel disease is a group of chronic non-specific intestinal inflammatory diseases, including ulcerative colitis and Crohn's disease. AIM To assess the effect of screening colonoscopy frequency on colorectal cancer mortality. METHODS We included the clinicopathological and follow-up data of patients with colorectal cancer who underwent laparoscopic colectomy or open colectomy at our Gastrointestinal Department between January 2019 and December 2022. Surgical indicators, oncological indicators, and survival rates were compared between the groups. The results of 104 patients who met the above criteria were extracted from the database (laparoscopic colectomy group = 63, open colectomy group = 41), and there were no statistically significant differences in the baseline data or follow-up time between the two groups. RESULTS Intraoperative blood loss, time to first ambulation, and time to first fluid intake were significantly lower in the laparoscopic colectomy group than in the open colectomy group. The differences in overall mortality, tumor-related mortality, and recurrence rates between the two groups were not statistically significant, and survival analysis showed that the differences in the cumulative overall survival, tumor-related survival, and cumulative recurrence-free rates between the two groups were not statistically significant. CONCLUSION In elderly patients with colorectal cancer, laparoscopic colectomy has better short-term outcomes than open colectomy, and laparoscopic colectomy has superior long-term survival outcomes compared with open colectomy.
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Affiliation(s)
- Li Zheng
- Department of Gastroenterology, The First Hospital of Nanchang, Nanchang 330008, Jiangxi Province, China
| | - Bin Li
- Department of Gastroenterology, The First Hospital of Nanchang, Nanchang 330008, Jiangxi Province, China
| | - Ling Lei
- Department of Gastroenterology, The First Hospital of Nanchang, Nanchang 330008, Jiangxi Province, China
| | - Li-Jia Wang
- Department of Gastroenterology, The First Hospital of Nanchang, Nanchang 330008, Jiangxi Province, China
| | - Zhi-Ping Zeng
- Department of Gastroenterology, The First Hospital of Nanchang, Nanchang 330008, Jiangxi Province, China
| | - Jian-Dong Yang
- Department of General Surgery, The First Hospital of Nanchang, Nanchang 330008, Jiangxi Province, China
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Miao XY, Chen K, Zeng ZP. [History, current situation and disputes over adrenal vein sampling in the diagnosis and treatment of primary aldosteronism]. Zhonghua Nei Ke Za Zhi 2022; 61:1085-1090. [PMID: 36207963 DOI: 10.3760/cma.j.cn112138-20211117-00822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- X Y Miao
- Department of Endocrinology, the First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - K Chen
- Department of Endocrinology, the First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - Z P Zeng
- Department of Endocrinology,Peking Union Medical College Hospital,Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Zheng F, Xu R, Zeng ZP, Liu CL, Duan YH, Cheng ZP, Sun Q, Liu Q, Wang MH, Han PX, Wang YL, Wang JN, Huang W, Guo XH, Yang XQ. [Cardiac paraganglioma caused by a missense mutation of SDHB gene: a case report]. Zhonghua Nei Ke Za Zhi 2021; 60:910-914. [PMID: 34551482 DOI: 10.3760/cma.j.cn112138-20201122-00963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- F Zheng
- Department of Cardiology, the First Affiliated Hospital of Shandong First Medical University, Ji'nan 250014, China
| | - R Xu
- Department of Cardiology, the First Affiliated Hospital of Shandong First Medical University, Ji'nan 250014, China
| | - Z P Zeng
- Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - C L Liu
- Department of Cardiology, the First Affiliated Hospital of Shandong First Medical University, Ji'nan 250014, China
| | - Y H Duan
- Department of PET/CT, the First Affiliated Hospital of Shandong First Medical University, Ji'nan 250014, China
| | - Z P Cheng
- Department of PET/CT, the First Affiliated Hospital of Shandong First Medical University, Ji'nan 250014, China
| | - Q Sun
- Department of Pathology, the First Affiliated Hospital of Shandong First Medical University, Ji'nan 250014, China
| | - Q Liu
- Department of Pathology, the First Affiliated Hospital of Shandong First Medical University, Ji'nan 250014, China
| | - M H Wang
- Department of Cardiac Surgery, the First Affiliated Hospital of Shandong First Medical University, Ji'nan 250014, China
| | - P X Han
- Department of Imaging, the First Affiliated Hospital of Shandong First Medical University, Ji'nan 250014, China
| | - Y L Wang
- Department of Anesthesiology, the First Affiliated Hospital of Shandong First Medical University, Ji'nan 250014, China
| | - J N Wang
- Department of Urinary Surgery, the First Affiliated Hospital of Shandong First Medical University, Ji'nan 250014, China
| | - W Huang
- Department of Echocardiography, the First Affiliated Hospital of Shandong First Medical University, Ji'nan 250014, China
| | - X H Guo
- Department of Pathology, the First Affiliated Hospital of Shandong First Medical University, Ji'nan 250014, China
| | - X Q Yang
- Department of Pathology, the First Affiliated Hospital of Shandong First Medical University, Ji'nan 250014, China
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Guo Y, Zeng J, Li Q, Li P, Luo FM, Zhang WZ, Lu YX, Wang Q, Zhang W, Zeng ZP, Liu LS. [Preliminary clinical study of direct renin inhibitor aliskiren in the treatment of severe COVID-19 patients with hypertension]. Zhonghua Nei Ke Za Zhi 2020; 59:610-617. [PMID: 32340096 DOI: 10.3760/cma.j.cn112138-20200328-00310] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To explore the feasibility of direct renin inhibitor aliskiren for the treatment of severe patients of COVID-19 with hypertension. Methods: A retrospective case analysis of effectiveness and safety of aliskiren treatment to lower blood pressure in three severe and one critically ill patients of COVID-19 with hypertension. Results: Four patients, two males and two females, with an average age of 78 years (66-87 years), were referred to hospital mainly because of respiratory symptoms. Three cases were confirmed by 2019-nCoV nucleic acid and antibody detection (severe type), and one with cardiac insufficiency was clinically determined (critically ill type). The previous diagnosis of hypertension was clear. Two patients took calcium channel antagonist (CCB), one patient took angiotensin converting enzyme inhibitor (ACEI), and one patient took angiotensin II receptor antagonist (ARB). After admission, ACEI or ARB were discontinued, one patient with heart failure patient was treated by aliskiren combined with diuretic; 3 patients were treated with aliskiren combined with CCB. Two patients were stopped to use CCB due to low blood pressure after 1 to 2 weeks of using CCB and aliskiren. On the basis of comprehensive therapy combined with antiviral and oxygenation treatment, aliskiren antihypertensive treatment was taken for three to four weeks. The blood pressure control of four patients was satisfactory and there was no complaint of discomfort. The condition improved, and all patients had reached the discharge standard and were discharged. Conclusion: Our preliminary clinical data shows that aliskiren's antihypertensive therapy is effective and safe for severe COVID-19 patients complicated with hypertension. Further clinical aliskiren therapy study is required with more COVID-19 patients..
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Affiliation(s)
- Y Guo
- Departments of Endocrinology, Changhai Hospital, The Second Military Medical University, Shanghai 200433, China; Deparment of Infectious Disease 1, Guanggu District, Hubei Province Maternal and Child Health Care Hospital, Wuhan 430200, China
| | - J Zeng
- Deparment of Infectious Disease 1, Guanggu District, Hubei Province Maternal and Child Health Care Hospital, Wuhan 430200, China; Department of Aviation Disease, Naval Medical Center of PLA, The Second Military Medical University, Shanghai 200052, China
| | - Q Li
- Deparment of Infectious Disease 1, Guanggu District, Hubei Province Maternal and Child Health Care Hospital, Wuhan 430200, China; Department of Neurosurgery, Changhai Hospital, The Second Military Medical University, Shanghai 200433, China
| | - P Li
- Deparment of Infectious Disease 1, Guanggu District, Hubei Province Maternal and Child Health Care Hospital, Wuhan 430200, China; Departments of Cardiology, Changhai Hospital, The Second Military Medical University, Shanghai 200433, China
| | - F M Luo
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - W Z Zhang
- Shanghai Institute of Hypertension, Ruijin Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Y X Lu
- Department of Cardiology, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430022, China
| | - Q Wang
- Division of Nephrology and Hypertension, University Hospital Lausanne (CHUV) , Lausanne CH-1011, Switzerland
| | - W Zhang
- Deparment of Infectious Disease 1, Guanggu District, Hubei Province Maternal and Child Health Care Hospital, Wuhan 430200, China; Department of Respiratory and Critical Care Medicine, Changhai Hospital, The Second Military Medical University, Shanghai 200433, China
| | - Z P Zeng
- Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L S Liu
- Departments of Cardiology, Fuwai Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100037, China
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Zeng ZP. [Stress the standardized diagnosis and management of primary aldosteronism]. Zhonghua Nei Ke Za Zhi 2020; 59:1-4. [PMID: 31887829 DOI: 10.3760/cma.j.issn.0578-1426.2020.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- Z P Zeng
- Department of Endocrinology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Yuan ZY, Zhang XX, Wu YJ, Zeng ZP, She WM, Chen SY, Zhang YQ, Guo JS. Serum amyloid A levels in patients with liver diseases. World J Gastroenterol 2019; 25:6440-6450. [PMID: 31798280 PMCID: PMC6881510 DOI: 10.3748/wjg.v25.i43.6440] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 09/23/2019] [Accepted: 11/07/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Serum amyloid A (SAA) is an acute phase protein mainly synthesized by the liver. SAA induces inflammatory phenotype and promotes cell proliferation in activated hepatic stellate cells, the major scar forming cells in the liver. However, few studies have reported on the serum levels of SAA in human liver disease and its clinical significance in various liver diseases.
AIM To investigate the serum levels of SAA in patients with different liver diseases and analyze the factors associated with the alteration of SAA levels in chronic hepatitis B (CHB) patients.
METHODS Two hundred and seventy-eight patients with different liver diseases and 117 healthy controls were included in this study. The patients included 205 with CHB, 22 with active autoimmune liver disease (AILD), 21 with nonalcoholic steatohepatitis (NASH), 14 with drug-induced liver injury (DILI), and 16 with pyogenic liver abscess. Serum levels of SAA and other clinical parameters were collected for the analysis of the factors associated with SAA level. Mann-Whitney U test was used to compare the serum SAA levels of patients with various liver diseases with those of healthy controls. Bonferroni test was applied for post hoc comparisons to control the probability of type 1 error (alpha = 0.05/6 = 0.008). For statistical tests of other variables, P < 0.05 was considered statistically significant. Statistically significant factors determined by single factor analysis were further analyzed by binary multivariate logistic regression analysis.
RESULTS All patients with active liver diseases had higher serum SAA levels than healthy controls and the inactive CHB patients, with the highest SAA level found in patients with pyogenic liver abscess (398.4 ± 246.8 mg/L). Patients with active AILD (19.73 ± 24.81 mg/L) or DILI (8.036 ± 5.685 mg/L) showed higher SAA levels than those with active CHB (6.621 ± 6.776 mg/L) and NASH (6.624 ± 4.891 mg/L). Single (P < 0.001) and multivariate logistic regression analyses (P = 0.039) for the CHB patients suggested that patients with active CHB were associated with an SAA serum level higher than 6.4 mg/L. Serum levels of SAA and CRP (C-reactive protein) were positively correlated in patients with CHB (P < 0.001), pyogenic liver abscess (P = 0.045), and active AILD (P = 0.02). Serum levels of SAA (0.80-871.0 mg/L) had a broader fluctuation range than CRP (0.30-271.3 mg/L).
CONCLUSION Serum level of SAA is a sensitive biomarker for inflammatory activity of pyogenic liver abscess. It may also be a weak marker reflecting milder inflammatory status in the liver of patients with CHB and other active liver diseases.
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Affiliation(s)
- Zi-Ying Yuan
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Institute of Liver Diseases, Shanghai 200032, China
- Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
| | - Xing-Xin Zhang
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Institute of Liver Diseases, Shanghai 200032, China
| | - Yu-Jing Wu
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Institute of Liver Diseases, Shanghai 200032, China
| | - Zhi-Ping Zeng
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Institute of Liver Diseases, Shanghai 200032, China
| | - Wei-Min She
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Institute of Liver Diseases, Shanghai 200032, China
| | - Shi-Yao Chen
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Institute of Liver Diseases, Shanghai 200032, China
| | - Yuan-Qing Zhang
- The First Affiliated Hospital, Yunnan Institute of Digestive Disease, Kunming Medical University, Kunming 650000, Yunnan Province, China
| | - Jin-Sheng Guo
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
- Shanghai Institute of Liver Diseases, Shanghai 200032, China
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Zeng ZP. [Primary aldosteronism: pay attention to the important healthy issues]. Zhonghua Nei Ke Za Zhi 2018; 57:237-239. [PMID: 29614579 DOI: 10.3760/cma.j.issn.0578-1426.2018.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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Chen S, Zeng ZP, Song AL, Zhu L, Lu L, Tong AL, Shi C, Li HZ. [The application of captopril challenge test in the diagnosis of primary aldosteronism]. Zhonghua Nei Ke Za Zhi 2017; 56:402-408. [PMID: 28592038 DOI: 10.3760/cma.j.issn.0578-1426.2017.06.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the value of captopril challenge test (CCT) in the diagnosis of primary aldosteronism (PA). Methods: A total of 674 patients [(45.0±13.7) years, men 341, women 333] admitted to Peking Union Medical College Hospital from 2000 to 2015 were analyzed. Among them, 222 subjects were with essential hypertension (EH), 28 were with pheochromocytoma (PHEO), 246 were with idiopathic hyperaldosteronism (IHA) and 178 were with aldosterone producing adenoma (APA). All patients received CCT. 24 h urine sodium was measured in partial patients. Plasma renin activity (PRA), aldosterone (ALD) were detected. Results: Compared with EH [PRA: before 0.5(0.2, 0.9) μg·L(-1)·h(-1,) after 0.8(0.4, 1.5) μg·L(-1)·h(-1;) ALD: before (393±122) pmol/L, after (360±97) pmol/L] and PHEO [PRA: before 0.3(0.1, 0.9) μg·L(-1)·h(-1,) after 0.4(0.1, 1.6) μg·L(-1)·h(-1;) ALD: before (396±108) pmol/L, after (374±114) pmol/L], lower levels of PRA and higher levels of ALD before and after CCT were observed in PA patients [PRA: before 0.1 (0.1, 0.2) μg·L(-1)·h(-1,) after 0.1 (0.1, 0.2) μg·L(-1)·h(-1;) ALD: before (468±216) pmol/L; after (457±199) pmol/L]. After CCT, the suppression rate of ALD [2.8% (-8.8%, 15.4%) vs 6.6% (-4.3%, 17.6%)] and increasing rate of PRA [0(0, 50%) vs 50%(0, 200%)] in PA patients were lower than those in EH patients. The ALD/PRA ratio (ARR) were higher in PA than that in EH or PHEO patients. In the EH subjects, ALD levels of seated posture were higher than those of recumbent posture both before and after receiving captopril, but with no changes in ARR after CCT. No significant differences in ALD and ARR (before and after receiving captopril) were observed between seated and recumbent position in the PA group. The ARR after CCT tended to decrease in EH subjects with elevated urine-sodium compared with those with normal urine-sodium. No changes could be viewed in ALD and PRA levels between normal urine-sodium and elevated urine-sodium groups among APA, IHA and EH patients either before or after CCT. Among patients with APA, the ALD levels before CCT and the ARR after CCT were lower in the patients with AngiotensionⅡ(AngⅡ) reactive than those without. A ROC curve analysis suggested that the optimal cutoff value was 46.2 (ALD unit: ng/dl; PRA unit: μg·L(-1)·h(-1)) for ARR after challenge in diagnosing PA, with the sensitivity of 88.7% and specificity of 84.8%. Conclusions: ARR after 25 mg captopril had high sensitivity and specificity in diagnosis of PA with the cutoff of 46.2. Seated CCT could replace recumbent CCT as a more confirmatory test. The PRA increasing rate should be taken into consideration when diagnosis of PA.
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Affiliation(s)
| | - Z P Zeng
- Department of Endocrinology, Key Laboratory of Endocrinology, National Health and Family Planning Commission, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Li L, Cao JQ, Liu HM, Wu Q, Pan QH, Zeng ZP, Lan YT, Li YM, Mei WJ, Wang XC, Zheng WJ. Microwave-Assisted Synthesis of Imidazo[4,5-f][1,10]phenanthroline Derivatives as Apoptosis Inducers in Chemotherapy by Stabilizing Bcl-2 G-quadruplex DNA. Molecules 2017; 22:molecules22050829. [PMID: 28531122 PMCID: PMC6154642 DOI: 10.3390/molecules22050829] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 05/11/2017] [Accepted: 05/14/2017] [Indexed: 11/27/2022] Open
Abstract
Herein, a series of imidazo[4,5-f][1,10] phenanthroline derivatives RPIP (PIP = imidazo [4,5-f][1,10] phenanthroline, R = NO2, 1; CF3, 2; Cl, 3; OH, 4) have been synthesized in yields of 82.3–94.7% at 100 °C under the irradiation of microwave. MTT assay has been utilized to evaluate the inhibitory activity (IC50) of these compounds against the growth of various tumor cells, and the results revealed that these compounds, especially 1, exhibited excellent inhibitory activity against the growth of A549 cells with IC50 of 15.03 μM. Moreover, it’s also confirmed that 1 can penetrate into the membrane of tumor cells and distribute in mitochondria when observed under microscopy, resulting apoptosis of tumor cells. The further studies showed that 1 can bind to bcl-2 G-quadruplex DNA, which demonstrated by the increase of melting point of bcl-2 G4 DNA in the presence of 1, as well as electronic titration and emission spectra. In a word, this kind of compound may develop as a potential apoptosis inducer in cancer chemotherapy via binding and stabilizing to the bcl-2 G-quadruplex DNA.
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Affiliation(s)
- Li Li
- The First Affiliation Hospital, Guangdong Pharmaceutical University, Guangzhou 510006, China.
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Jie-Qiong Cao
- Department of Chemistry, Jinan University, Guangzhou 510006, China.
| | - Hui-Min Liu
- The First Affiliation Hospital, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Qiong Wu
- Department of Chemistry, Jinan University, Guangzhou 510006, China.
| | - Qiu-Hui Pan
- Department of Laboratory Medicine, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China.
| | - Zhi-Ping Zeng
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Yu-Tao Lan
- School of Nursing, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Yu-Mei Li
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Wen-Jie Mei
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Xi-Cheng Wang
- The First Affiliation Hospital, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Wen-Jie Zheng
- Department of Chemistry, Jinan University, Guangzhou 510006, China.
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Abstract
Hepatic fibrosis is a characteristic consequence of multiple chronic liver injuries. However, there are currently no specific drugs that can effectively reverse or prevent liver fibrosis progression. Liver fibrosis is a complex pathological process attributable to a variety of cytokines and molecular pathways. Therefore, further exploring the cellular and molecular mechanisms of liver fibrosis, unearthing specific anti-fibrosis targeted therapies and translation of the potential findings into clinical treatment are of great significance.
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Zhang YQ, Peng LJ, Cao YR, Zeng ZP, Wu YJ, Shi H, Cheng SY, Wang JY, Friedman SL, Sninsky JJ, Guo JS. Risk Factors for Hepatocellular Carcinoma in Cirrhotic Patients with Chronic Hepatitis B. Genet Test Mol Biomarkers 2016; 20:535-43. [PMID: 27391584 DOI: 10.1089/gtmb.2016.0062] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
AIMS To investigate the clinical and genetic risk factors associated with hepatocellular carcinoma (HCC) in cirrhotic patients with chronic hepatitis B (CHB). METHODS Nine hundred forty-nine Chinese Han patients with CHB were studied, including noncirrhotic patients without HCC (N = 234), cirrhotic patients without (N = 281) and with HCC (N = 434). Patients were genotyped for 10 candidate single nucleotide polymorphisms (SNPs) by the polymerase chain reaction (PCR)-ligase detection reaction (LDR) method. RESULTS By multivariate logistic regression analysis adjusted for Child-Pugh scores, noneffective antiviral treatment, drinking history, family history of HCC, and age ≥50 years old were associated with HCC risk (odds ratio [OR] = 5.923, 2.456, 2.241, 1.955, respectively). Sixty-two of 170 cirrhotic patients who achieved sustained virological suppression by antiviral treatment developed HCC, with fatty liver disease, family history of HCC, and family history of hepatitis B virus (HBV) infection as the risk factors (OR = 11.646, 3.339, 2.537, respectively). The SNPs associated with HCC risk in patients with cirrhosis and CHB were rs11536889 in TLR4 and rs2853744 in SPP1. Polymorphisms of TLR4 rs2149356, AP3S2 rs2290351, STXBP5L rs2169302, MLEC rs7976497, and SOCS3 rs4969168 were associated with HCC risk in specific stratified analyses with gender, age, and drinking history in the cirrhotic patients. CONCLUSIONS Inadequate antiviral treatment, family history of HCC, drinking history, and age ≥50 years old are risk factors for HCC. Sustained suppression of HBV does not eliminate the risk of HCC. Specific host genetic factors may impact HCC development in Han Chinese cirrhotic patients with CHB, including SNPs in TLR4, SPP1, AP3S2, STXBP5L, MLEC, and SOCS3, which warrant further validation in additional cohorts.
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Affiliation(s)
- Yuan-Qing Zhang
- 1 Division of Digestive Diseases, Zhong Shan Hospital, Fu Dan University , Shanghai, China
| | - Li-Jun Peng
- 1 Division of Digestive Diseases, Zhong Shan Hospital, Fu Dan University , Shanghai, China
| | - Yi-Rong Cao
- 1 Division of Digestive Diseases, Zhong Shan Hospital, Fu Dan University , Shanghai, China
| | - Zhi-Ping Zeng
- 1 Division of Digestive Diseases, Zhong Shan Hospital, Fu Dan University , Shanghai, China
| | - Yu-Jing Wu
- 1 Division of Digestive Diseases, Zhong Shan Hospital, Fu Dan University , Shanghai, China
| | - Hong Shi
- 1 Division of Digestive Diseases, Zhong Shan Hospital, Fu Dan University , Shanghai, China
| | - Shi-Yao Cheng
- 1 Division of Digestive Diseases, Zhong Shan Hospital, Fu Dan University , Shanghai, China
| | - Ji-Yao Wang
- 1 Division of Digestive Diseases, Zhong Shan Hospital, Fu Dan University , Shanghai, China
| | - Scott L Friedman
- 2 Division of Liver Diseases, Icahn School of Medicine at Mount Sinai , New York, New York
| | | | - Jin-Sheng Guo
- 1 Division of Digestive Diseases, Zhong Shan Hospital, Fu Dan University , Shanghai, China
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Zeng ZP, Wu Q, Sun FY, Zheng KD, Mei WJ. Imaging Nuclei of MDA-MB-231 Breast Cancer Cells by Chiral Ruthenium(II) Complex Coordinated by 2-(4-Phenyacetylenephenyl)-1H-imidazo[4,5f][1,10]phenanthroline. Inorg Chem 2016; 55:5710-8. [DOI: 10.1021/acs.inorgchem.6b00824] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Fen-Yong Sun
- Department
of Clinical Laboratory Medicine, Shanghai Tenth People’s Hospital of Tongji University, 301 Yanchang Road, 200072 Shanghai, People’s Republic of China
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Wang GH, Jiang FQ, Duan YH, Zeng ZP, Chen F, Dai Y, Chen JB, Liu JX, Liu J, Zhou H, Chen HF, Zeng JZ, Su Y, Yao XS, Zhang XK. Targeting truncated retinoid X receptor-α by CF31 induces TNF-α-dependent apoptosis. Cancer Res 2012; 73:307-18. [PMID: 23151904 DOI: 10.1158/0008-5472.can-12-2038] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A truncated version of retinoid X receptor-α, tRXR-α, promotes cancer cell survival by activating the phosphoinositide 3-kinase (PI3K)/AKT pathway. However, targeting the tRXR-α-mediated survival pathway for cancer treatment remains to be explored. We report here our identification of a new natural product molecule, CF31, a xanthone isolated from Cratoxylum formosum ssp. pruniflorum, and the biologic evaluation of its regulation of the tRXR-α-mediated PI3K/AKT pathway. CF31 binds RXR-α and its binding results in inhibition of RXR-α transactivation. Through RXR-α mutational analysis and computational studies, we show that Arg316 of RXR-α, known to form salt bridges with certain RXR-α ligands, such as 9-cis-retinoic acid (9-cis-RA), is not required for the antagonist effect of CF31, showing a distinct binding mode. Evaluation of several CF31 analogs suggests that the antagonist effect is mainly attributed to an interference with Leu451 of helix H12 in RXR-α. CF31 is a potent inhibitor of AKT activation in various cancer cell lines. When combined with TNF-α, it suppresses TNF-α activation of AKT by inhibiting TNF-α-induced tRXR-α interaction with the p85α regulatory subunit of PI3K. CF31 inhibition of TNF-α activation of AKT also results in TNF-α-dependent activation of caspase-8 and apoptosis. Together, our results show that CF31 is an effective converter of TNF-α signaling from survival to death by targeting tRXR-α in a unique mode and suggest that identification of a natural product that targets an RXR-mediated cell survival pathway that regulates PI3K/AKT may offer a new therapeutic strategy to kill cancer cells.
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Affiliation(s)
- Guang-Hui Wang
- School of Pharmaceutical Science, Xiamen University, Xiamen, China
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14
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Abstract
Compared with the therapeutic effects of established medicinal drugs, it is often considered that natural product-derived drugs are of a more benign nature in side-effects, which has made natural medicines become a popular form of therapy. Traditional Chinese medicine (TCM) is generally considered as being natural and harmless. TCM has been paid much more attention than before and widely used for the treatment nowadays. However, with the increasing cases of adverse drug reactions (ADRs), the ADRs induced by TCM are becoming more widely recognized. Some ADRs are sometimes even life-threatening. This article reviews literatures on ADRs induced by TCM which was published in the past 10 years. A total of 3122 cases including complete data are selected for the present analysis. From the data of the 3122 cases, statistics is carried out to the distribution of administration routes and time of the occurrence of ADRs, the prognosis of ADRs, sex and age factors, types and clinical symptoms of ADRs, and drugs involved in ADRs. In addition, occurrence and influencing factors of TCM-induced diseases are also analysed, which includes spices confusion, processing drugs improperly, toxic components, long-term medication, improper concerted application, interaction of TCM and Western medicine. It is concluded that the efficacy and toxicity of TCM, often using the compound prescription involving various plants and animals, resulted from a variety of chemical constituents, which lead to a comprehensive response in the human body. The 'toxicity' of TCM should be correctly recognized and reasonably utilized.
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Affiliation(s)
- Zhi-Ping Zeng
- College of Food and Bioengineering, South China University of Technology, Guangzhou, China
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15
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Li DC, Zhong XK, Zeng ZP, Jiang JG, Li L, Zhao MM, Yang XQ, Chen J, Zhang BS, Zhao QZ, Xie MY, Xiong H, Deng ZY, Zhang XM, Xu SY, Gao YX. Application of targeted drug delivery system in Chinese medicine. J Control Release 2009; 138:103-12. [PMID: 19433120 DOI: 10.1016/j.jconrel.2009.05.008] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2009] [Accepted: 05/04/2009] [Indexed: 01/05/2023]
Abstract
Targeted drug delivery system of traditional Chinese medicine (TCM) refers to those using different carriers to make the effective parts or monomer extracted from TCM or natural medicine into agents which can directly concentrate on the target site. This system is an ideal delivery approach and has became a hot spot in the field of TCM pharmaceutical research since it can improve the pharmacological effects and reduce the adverse reactions. This paper reviews literatures on TCM targeted agents which were published in the past 10 years. In accordance with the different carriers, four types of agents, liposome, nanoparticle, microsphere, and emulsion are analyzed. Liposomes were studied most profoundly and a variety of new types of liposomes was developed on the basis of the traditional liposomes. Using natural or synthetic polymer materials to carry drugs, nanoparticles and microspheres can promote the drug through the blood-brain barrier and enhance its bioavailability. Emulsion has lymphatic affinity and the drug is coated in the internal phase, which can protect the drugs from hydrolysis. All these delivery agents are proved to be effective ways to improve the clinical efficacy of drugs, and each is discussed in detail with examples. At present, TCM targeted agents are still in the exploratory stage and many problems need to be solved. Especially, it is a huge challenge to research the targeted delivery systems for the effective parts of Chinese medicines and compound prescriptions, and the paper gives a particular discussion on this point. In the future, more attention should be paid to the research on the particle agents of TCM effective parts, and the development of new carrier materials in order to enhance the overall quality of TCM targeted agents.
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Affiliation(s)
- Di-Cai Li
- College of Food and Bioengineering, South China University of Technology, Guangzhou, 510640, China
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16
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Tanabe A, Naruse M, Arai K, Naruse K, Yoshimoto T, Seki T, Imaki T, Miyazaki H, Zeng ZP, Demura R, Demura H. Gene expression and roles of angiotensin II type 1 and type 2 receptors in human adrenals. Horm Metab Res 1998; 30:490-5. [PMID: 9761377 DOI: 10.1055/s-2007-978918] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.9] [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] [Indexed: 10/21/2022]
Abstract
Although stimulation of aldosterone secretion is one of the functions of angiotensin II, the gene expression and biological significance of the angiotensin II receptor subtypes, AT1 and AT2, in the human adrenal have not been characterized. We therefore investigated the transcription levels of the receptor subtype genes and their roles in regulation of steroid secretion by human adrenals. The expression of AT1 and AT2 receptor mRNA was assessed by reverse transcription-polymerase chain reaction followed by Southern blot analysis in normal adrenocortical tissues (n = 6) and a series of adrenal tumour tissues: aldosterone-producing adrenocortical adenoma (n=6), Cushing's syndrome (n = 6) and pheochromocytoma (n = 6). The role of the two receptor subtypes in steroid secretion in vitro was examined by incubating the tissue with angiotensin II(1 microM) with or without the selective AT1 antagonist CV-11974 (1 microM). Both AT1 and AT2 receptor mRNA transcripts were demonstrated in all of the human adrenal tissues tested. Angiotensin II-induced aldosterone secretion was suppressed 50% upon the addition of CV-11974. The selective AT2 agonist CGP-42112 increased aldosterone secretion by 55% over the control, which was not suppressed by CV-11974. Angiotensin II and CGP-42112 did not affect cortisol secretion. These results suggest that both AT2 and AT1 receptors may be involved in the regulation of aldosterone secretion and tumorigenesis of the human adrenals.
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Affiliation(s)
- A Tanabe
- Department of Medicine, Institute of Clinical Endocrinology, Tokyo Women's Medical College, Japan
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17
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Cao WB, Zeng ZP, Zhu YJ, Luo WC, Cai BQ. Inhibition of nitric oxide synthesis increases the secretion of endothelin-1 in vivo and in cultured endothelial cells. Chin Med J (Engl) 1994; 107:822-6. [PMID: 7867388] [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: 01/27/2023] Open
Abstract
The aim of this study is to investigate the effects of nitric oxide, formed from L-arginine, on the production of endothelin-1 in vivo and in cultured endothelial cells. In mechanically ventilated anesthetized dogs (n = 5), mean pulmonary arterial pressure (PAPm) and pulmonary vascular resistance (PVR) during hypoxic ventilation (FIO2 = 0.10) was 25 +/- 3.1 kPa and 68.7 +/- 10.2 kPa.s/L respectively. NG-nitro-L-arginine methylester (L-NAME), an inhibitor of nitric oxide synthase, increased the peak value of PAPm and PVR during hypoxic ventilation to 36.6 +/- 4.7 kPa and 158.4 +/- 25 kPa.s/L and its effect lasted for 2-3 hours. Meanwhile, plasma endothelin-1 level in the femoral artery increased by 20.9 +/- 7.1, 25.6 +/- 7.7, 28.6 +/- 7.9 pg/ml at the 60th, 120th, 180th minute after the injection of L-NAME respectively (P < 0.05 vs hypoxic control before the injection). In cultured endothelial cells from umbilical veins, endothelin-1 level of culture medium in control group was 35.1 +/- 5.9 pg/10(5) cells/ml (n = 9). L-NAME increased endothelin-1 level to 42.8 +/- 4.9pg/10(5) cells/ml (n = 9, P < 0.05) in case of 10(-11) mol/L and to 43.0 +/- 4.7 pg/10(5) cells/ml in case of 10(-7) mol/L (n = 9, P < 0.05). These findings indicate that endogenous nitric oxide is an inhibitory modulator of hypoxic pulmonary vasoconstriction and that nitric oxide inhibits the production of endothelin-1 in vivo and in cultured vascular endothelial cells.
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Affiliation(s)
- W B Cao
- Department of Respiratory Medicine, PUMC Hospital, Beijing
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18
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Zeng ZP, Tang D, Sun ML. [The relationship between the plasma levels of endothelin and angiopathy in diabetic patients]. Zhonghua Nei Ke Za Zhi 1994; 33:467-9. [PMID: 7867443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Plasma levels of endothelin (ET), vasoconstrictor peptide released from vascular endothelial cells, have been measured by radioimmunoassay in 48 patients with NIDDM and 20 healthy subjects. The plasma ET concentrations were found to be greatly elevated in the patients with diabetes compared with the healthy subjects (P < 0.001). We also find that the plasma levels of ET were higher in diabetic patients with complication of diabetes mellitus than in those without complication (P < 0.02). The elevated ET levels were related to hypertension and/or diabetic angiopathy. There were no significant correlations between plasma ET concentrations and blood glucose, HbA1 et al. In diabetic patients elevated ET levels may play a pathophysiological role in the development of diabetic complication.
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Affiliation(s)
- Z P Zeng
- Department of Endocrinology, Peking Union Medical College Hospital, Beijing
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19
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Zeng ZP, Naruse M, Guan BJ, Naruse K, Sun ML, Zang MF, Demura H, Shi YF. Endothelin stimulates aldosterone secretion in vitro from normal adrenocortical tissue, but not adenoma tissue, in primary aldosteronism. J Clin Endocrinol Metab 1992; 74:874-8. [PMID: 1548353 DOI: 10.1210/jcem.74.4.1548353] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [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] [Indexed: 12/27/2022]
Abstract
In addition to vasoconstriction, endothelin (ET) has been reported to show various endocrine actions in animals. However, no data have emerged concerning the effect of ET on adrenal function in humans. We, therefore, investigated the effects of ET on aldosterone and cortisol secretion from adrenocortical tissues obtained from normal subjects (n = 6) and patients with primary aldosteronism (n = 5). Adrenal tissue slices were incubated at 37 C for 120 min in modified Krebs-Ringer solution containing glucose and HEPES. ET increased aldosterone secretion from normal adrenocortical tissue in a dose-dependent manner, with an ED50 of 0.036 nmol/L, although the maximum response was small compared with that to angiotensin-II. ET also stimulated aldosterone secretion from tissues adjacent to the adenoma, but not from the adenoma, in patients with primary aldosteronism. The effects of ET on aldosterone secretion were significantly suppressed by calcium channel blockade with nicardipine. ET did not affect cortisol secretion from the adrenal tissues. These results suggest that ET is one of the factors that regulates aldosterone secretion in humans.
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Affiliation(s)
- Z P Zeng
- Department of Endocrinology, Peking Union Medical College Hospital, Beijing, China
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20
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Zeng ZP, Naruse M, Naruse K, Kato Y, Shi YF, Demura H, Shizume K. Antiserum against homologous atrial natriuretic peptide diminishes the natriuretic response during mineralocorticoid escape in rats. Endocrinology 1991; 128:226-30. [PMID: 1824757 DOI: 10.1210/endo-128-1-226] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
To elucidate the physiological role of atrial natriuretic peptide (ANP) in plasma during mineralocorticoid escape, we investigated the effects of passive immunization with ANP-specific antiserum on deoxycorticosterone (DOCA)-treated rats. Sodium was retained in excess of intake during the first day after treatment with DOCA, and sodium balance returned to control values by the second day, whereas the excretion of potassium exceeded the intake during all days after DOCA treatment. These changes in electrolyte balance were associated with a significant increase in plasma levels of ANP. Administration of ANP-specific antiserum significantly impaired the return to normal sodium balance as well as the augmented kaliuresis that were observed on the second day after injection of DOCA. No significant effect was observed on either sodium or potassium balance after the injection of normal rabbit serum. These results suggest that plasma ANP plays an important role in mineralocorticoid escape.
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Affiliation(s)
- Z P Zeng
- Department of Medicine, Tokyo Women's Medical College, Japan
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21
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Tsuchiya K, Naruse M, Sanaka T, Naruse K, Zeng ZP, Nitta K, Demura H, Shizume K, Sugino N. Renal and hemodynamic effects of endothelin in anesthetized dogs. Am J Hypertens 1990; 3:792-5. [PMID: 2222945 DOI: 10.1093/ajh/3.10.792] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The effects of endothelin on systemic hemodynamics and renal functions were investigated in anesthetized dogs. Infusion of endothelin at a dose of 1 ng/kg/min decreased renal blood flow and increased renal vascular resistance and filtration fraction. Endothelin at doses higher than 10 ng/kg/min significantly decreased cardiac output, glomerular filtration rate, renal plasma flow, urine volume, and urinary sodium excretion. Mean arterial pressure showed a transient decrease at doses higher than 50 ng/kg/min. These results showed that endothelin in systemic administration has effects on renal functions as well as on systemic hemodynamics.
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Affiliation(s)
- K Tsuchiya
- Department of Medicine, Kidney Center, Tokyo Women's Medical College, Japan
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22
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Tsuchiya K, Naruse M, Sanaka T, Naruse K, Kato Y, Zeng ZP, Nitta K, Shizume K, Demura H, Sugino N. Effects of endothelin on renal hemodynamics and excretory functions in anesthetized dogs. Life Sci 1990; 46:59-65. [PMID: 2405231 DOI: 10.1016/0024-3205(90)90058-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The effects of endothelin on renal hemodynamics and excretory functions were investigated in anesthetized dogs. Infusion of endothelin at a rate of 1 ng/kg.min resulted in a slight but significant decrease in renal blood flow and an increase in renal vascular resistance and filtration fraction. Endothelin at doses higher than 10 ng/kg.min significantly decreased cardiac output, glomerular filtration rate, urine volume, and urinary sodium and potassium excretion, whereas it increased systemic vascular resistance. Mean arterial pressure and heart rate showed a transient decrease and increase, respectively, at doses higher than 50 ng/kg.min. Plasma renin activity and plasma aldosterone concentrations were increased only at the dose of 100 ng/kg.min. These effects lasted for more than 60 min. These results suggest that endothelin may have an important role in the modulation of renal functions as well as in the modulation of systemic hemodynamics.
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Affiliation(s)
- K Tsuchiya
- Department of Medicine, Tokyo Women's Medical College, Japan
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23
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Nitta K, Naruse M, Sanaka T, Tsuchiya K, Naruse K, Zeng ZP, Demura H, Sugino N. Natriuretic and diuretic effects of endothelin in isolated perfused rat kidney. Endocrinol Jpn 1989; 36:887-90. [PMID: 2534478 DOI: 10.1507/endocrj1954.36.887] [Citation(s) in RCA: 4] [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] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
In an attempt to clarify the pathophysiological role of endothelin (ET), a novel vasoconstrictor peptide, we administered this peptide into the medium of isolated perfused rat kidney (IPK). ET increased renal vascular resistance by 53%, and reduced inulin clearance by 29% in IPK at a higher concentration of 500 PM. However, fractional excretion of sodium and urine flow rate were increased by 160% and 109%, respectively. These findings suggest that ET modulates the tubular sodium reabsorption as well as the renal hemodynamics.
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Affiliation(s)
- K Nitta
- Department of Medicine, Tokyo Women's Medical college, Japan
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24
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Zeng ZP, Meng XW, Liu SQ. [2 cases of familial multiple endocrine neoplasia syndrome]. Zhonghua Nei Ke Za Zhi 1989; 28:612-5, 637-8. [PMID: 2576647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Two cases of familial multiple endocrine neoplasia syndrome (MEN) are reported. Case 1. A 31-year-old woman began to have repeated attacks of coma in 1970. Blood examination showed fasting sugar as low as 2.05 mmol/L (37 mg/dl). Her disease was cured after the removal of two insulinomas in 1972. However, coma occurred again in 1982. Examination revealed the ratio of concentrations of serum insulin and sugar being more than 0.3. Another operation with removal of 19 insulinomas were performed in our hospital in 1985. After operation, the level of blood sugar returned to normal. Her father had suffered from Zollinger-Ellison Syndrome; the entire stomach and a part of pancreas were removed in 1967. So we examined her brother. His serum calcium level was 2.5-2.9 mmol/L (10.0-11.6 mg/dl) and plasma iPTH level 49.5-115.5 ng/L (normal value 21.4 +/- 7.7 ng/L n = 71). The high level of iPTH could not be suppressed by calcium load test. The total of two and a half of the remaining two parathyroid glands were removed. Pathology confirmed hyperplasia of parathyroid glands. The levels of serum calcium and iPTH returned to normal after operation. Case 2. A 25-year-old woman suffered from hypertension at the age of ten. Adrenal tumor with pheochromocytoma (2 x 2 x 1.5 cm3) was diagnosed and removed at that time. She complained of intermittent coma for 10 months and was thus admitted to our hospital in Nov. 1984. The level of blood sugar was 1.5-3.8 mmol/L (26-67 mg/dl).(ABSTRACT TRUNCATED AT 250 WORDS)
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25
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Naruse M, Naruse K, Kurimoto F, Horiuchi J, Tsuchiya K, Kawana M, Kato Y, Zeng ZP, Sakurai H, Demura H. Radioimmunoassay for endothelin and immunoreactive endothelin in culture medium of bovine endothelial cells. Biochem Biophys Res Commun 1989; 160:662-8. [PMID: 2470370 DOI: 10.1016/0006-291x(89)92484-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Using a synthetic 21-residue endothelin as antigen, we have produced an antiserum for endothelin and developed a specific and sensitive radioimmunoassay (RIA) for endothelin. The minimum detection limit of the RIA was 1 pg/tube. Immunoreactive (ir-) endothelin was extracted from the culture medium by Bondelute C8 column. The ir-endothelin in the culture medium of endothelial cells (EC) from bovine pulmonary artery and carotid artery was 1.48 ng/ml and 3.31 ng/ml, respectively. Reverse-phase high performance liquid chromatography coupled with the RIA revealed that ir-endothelin in the culture medium comprised one major component corresponding to synthetic endothelin. In addition, the cultured EC of bovine pulmonary artery were specifically stained by immunohistochemical technique. These results suggest that endothelin could be produced in the EC of the pulmonary and carotid arteries besides the aorta. The RIA presented in this study could be an useful tool to investigate the pathophysiologic significance of endothelin.
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Affiliation(s)
- M Naruse
- Department of Medicine, Heart Institute of Japan, Tokyo
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26
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Naruse K, Naruse M, Hirose S, Nagano M, Yamakado M, Kurimoto F, Sakurai H, Zeng ZP, Demura H, Inagami T. Immunoreactive prorenin and its profragment peptide are present in human juxtaglomerular cells. J Hypertens Suppl 1988; 6:S426-8. [PMID: 3071582 DOI: 10.1097/00004872-198812040-00134] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Although prorenin appears to be activated through the cleavage of its prosegment in the juxtaglomerular cells, the presence of prosegment peptide has never been demonstrated. We therefore studied prorenin in juxtaglomerular tumour cells, both by immunohistochemistry and by radio-immunoassay. Synthetic peptide covering the 14-carboxyterminal sequence of human renin prosegment was used to prepare both antibody and radiolabelled tracer. Intense immunostaining of prorenin was demonstrated in the tumour cells. By gel filtration, however, immunoreactive prorenin was shown to consist of two major components. The first peak, located at the elution position of activatable inactive renin, was regarded as prorenin. The other peak was located at an elution position with a smaller molecular weight, which was assumed to represent the profragment. These results suggest that both prosegment peptide and prorenin are present in the juxtaglomerular cells.
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Affiliation(s)
- K Naruse
- Department of Medicine, Tokyo Women's Medical College, Japan
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27
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Zeng ZP, Sun ML, Guan BJ. [Value of diagnostic localization in primary aldosteronism with venous catheterization]. Zhonghua Nei Ke Za Zhi 1988; 27:102-5, 135-6. [PMID: 3180935] [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: 01/04/2023]
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28
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Wu JP, Xu FJ, Zeng ZP. Adrenal medullary hyperplasia. Long-term follow up of 15 patients. Chin Med J (Engl) 1984; 97:653-6. [PMID: 6443296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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