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Zhou QH, Song ZH, Jin XD, Liu YH, Qian ZY, Wang CY. [Study on reproductive toxicity of nano-cadmium sulfide with different particle sizes on male mice]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:887-892. [PMID: 38195222 DOI: 10.3760/cma.j.cn121094-20220615-00317] [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] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Objective: To investigate the reproductive toxicity of cadmium sulfide nanoparticles (Nano-CdS) with different particle sizes on male mice. Methods: In January 2019, 30 SPF grade male mice were randomly divided into a control group, an experimental group[CdS Ⅰ group (particle size approximately 5 nm), and a CdS Ⅱ group (particle size approximately 50 nm) ], with 10 mice in each group. The experimental group was orally gavaged with 100 mg/kg, once a day, while the control group was gavaged with an equal volume of physiological saline for 45 consecutive days. After 45 days, levels of cadmium accumulation in testis were determined directly by AAS, deformity and testicular histopathological changes were also observed. Serum testosterone levels were measured by enzyme-linked immunosorbentassay (ELISA), expression levels of P450scc, 17β-HSD and P450c17 mRNA were determined by real-time PCR. P450c17 protein was determinated by Western Blot. Results: The histopathological results showed that the testes of the experimental group mice showed varying degrees of damage; Ultrastructural observation showed that the ultrastructure of mouse testicular cells in each experimental group showed varying degrees of mitochondrial expansion and disappearance of cristae, as well as irregular nuclear membranes. The degree of damage in CdS Ⅰ group was milder than that in CdS Ⅱ group. Compared with the control group, the cadmium content in the testes of the CdS Ⅰ and CdS Ⅱ groups significantly increased (P=0.001, 0.001), and the CdS Ⅱ group was higher than the CdS Ⅰ group (P=0.001). Compared with the control group, the levels of testosterone in the CdS Ⅰ and CdS Ⅱ groups decreased with statistical significance (P=0.001, 0.001). Real time fluorescence quantitative PCR results showed that compared with the control group, the experimental group's P450scc, 17β-HSD. The expression levels of 17β-HSD and P450c17 mRNA were significantly reduced, with statistically significant differences (P=0.001, 0.001, 0.001), and CdS Ⅱ group 17β-HSD. The expression levels of 17β-HSD and P450c17 mRNA were significantly lower than those of CdS Ⅰ group (P=0.001, 0.036). The Western Blot assay results showed that the expression levels of P450c17 protein in the testes of CdS Ⅰ and CdS Ⅱ groups of mice were significantly reduced, with statistical significance (P=0.001, 0.001) ; And the CdS Ⅱ group was significantly lower than the CdS Ⅰ group (P=0.001). According to Spearman correlation analysis, testosterone levels are correlated with P450scc, P450c17, 17β-HSD mRNA. There is a highly positive correlation between 17β-HSD mRNA levels, with statistically significant differences (r(s)=0.88, 0.80, 0.70, P=0.001, 0.001, 0.004) . Conclusion: Nano cadmium sulfide may induce reproductive toxicity by reducing the expression levels of key enzyme genes and enzyme protein activity in testosterone and its synthesis in mice, and the CdS Ⅱ group has a stronger toxic effect.
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Affiliation(s)
- Q H Zhou
- Department of Toxicology, Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
| | - Z H Song
- Department of Amesthsiology Tianjin Medical University General Hospital, Tianjin 300052, China
| | - X D Jin
- Department of Amesthsiology Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Y H Liu
- Department of Toxicology, Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
| | - Z Y Qian
- Department of Toxicology, Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
| | - C Y Wang
- Department of Amesthsiology Tianjin Medical University General Hospital, Tianjin 300052, China
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Guo SS, Tian YQ, Wu H, Jin XD, Gan LZ, Li Y, Yang JY. Spatial distribution and morphological transformation of chromium with coexisting substances in tannery landfill. Chemosphere 2021; 285:131503. [PMID: 34265720 DOI: 10.1016/j.chemosphere.2021.131503] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/24/2021] [Accepted: 07/07/2021] [Indexed: 06/13/2023]
Abstract
The prosperity and development of tannery industry have brought about rapid economic growth. However, the tannery landfill without anti-seepage measures in the early stage has generated masses of environmental hazards owing to the lack of awareness in environmental protection. Therefore, it is imperative to pay much attention to the understanding of environmental hazards from tannery waste. In this study, solid samples and groundwater samples were collected from a tannery landfill to study the effect of the characteristic pollutants produced by tanning on chromium distribution with other coexisting substances. The results showed that significant correlations were demonstrated between multiple coexisting substances (total organic carbon, total petroleum hydrocarbons, total nitrogen, Cr, F, Ca, Cu and Pb), indicating the possible same source or they coming from the same tannery production stage. The weights of positive effects and negative effects of coexisting substances on total Cr distribution in the profile decreased in the order: total nitrogen > Cu > Ca > Pb > total organic carbon > F > SO42-> Cd, and Ni > Cl > Hg, respectively. Moreover, the simulation of Visual MINTEQ showed that the cations were mainly bound to Cr as CrO42-, while the anions were bound to Cr3+. This study provided a new perspective on the selection of remediation strategies for Cr-contaminated sites to avoid secondary environmental pollution caused by the release of coexisting heavy metals.
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Affiliation(s)
- Shan-Shan Guo
- College of Architecture and Environment, Sichuan University, Chengdu, 610065, China
| | - Yong-Qiang Tian
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Hao Wu
- Scientific Research Academy of Guangxi Environmental Protection, Nanning, 530022, China
| | - Xiao-Dan Jin
- Scientific Research Academy of Guangxi Environmental Protection, Nanning, 530022, China
| | - Long-Zhan Gan
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Yang Li
- Scientific Research Academy of Guangxi Environmental Protection, Nanning, 530022, China
| | - Jin-Yan Yang
- College of Architecture and Environment, Sichuan University, Chengdu, 610065, China.
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Liu XX, Sun C, Jin XD, Li P, Zheng XG, Zhao T, Li Q. Genistein sensitizes sarcoma cells in vitro and in vivo by enhancing apoptosis and by inhibiting DSB repair pathways. J Radiat Res 2016; 57:227-237. [PMID: 26922091 PMCID: PMC4915536 DOI: 10.1093/jrr/rrv091] [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] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 11/03/2015] [Accepted: 11/03/2015] [Indexed: 06/05/2023]
Abstract
The aim of this work was to investigate the radiosensitization effects of genistein on mice sarcoma cells and the corresponding biological mechanisms in vitro and in vivo Using the non-toxic dosage of 10 μM genistein, the sensitizer enhancement ratios after exposure to X-rays at 50% cell survival (IC50) was 1.45 for S180 cells. For mice cotreated with genistein and X-rays, the excised tumor tissues had reduced blood vessels and decreased size and volume compared with the control and irradiation-only groups. Moreover, a significant increase in apoptosis was accompanied by upregulation of Bax and downregulation of Bcl-2 in the mitochondria, and lots of cytochrome c being transferred to the cytoplasm. Furthermore, X-rays combined with genistein inhibited the activity of DNA-PKcs, so DNA-injured sites were dominated by Ku70/80, leading to incompleteness of homologous recombination (HR) and non-homologous end-joining (NHEJ) repairs and the eventual occurrence of cell apoptosis. Our study, for the first time, demonstrated that genistein sensitized sarcoma cells to X-rays and that this radiosensitizing effect depended on induction of the mitochondrial apoptosis pathway and inhibition of the double-strand break (DSB) repair pathways.
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Affiliation(s)
- X X Liu
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, Gansu Province, China Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou 730000, China Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China
| | - C Sun
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, Gansu Province, China Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou 730000, China Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China
| | - X D Jin
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, Gansu Province, China Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou 730000, China Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China
| | - P Li
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, Gansu Province, China Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou 730000, China Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China
| | - X G Zheng
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, Gansu Province, China Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou 730000, China Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China University of Chinese Academy of Sciences, Beijing 100049, China
| | - T Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, Gansu Province, China Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou 730000, China Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China
| | - Q Li
- Institute of Modern Physics, Chinese Academy of Sciences, 509 Nanchang Road, Lanzhou 730000, Gansu Province, China Key Laboratory of Heavy Ion Radiation Biology and Medicine, Chinese Academy of Sciences, Lanzhou 730000, China Key Laboratory of Basic Research on Heavy Ion Radiation Application in Medicine, Gansu Province, Lanzhou 730000, China
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Jin XD, Lu JJ, Liu WH, Zhou J, Yu RK, Yu B, Zhang XJ, Shen BH. Adult male circumcision with a circular stapler versus conventional circumcision: A prospective randomized clinical trial. ACTA ACUST UNITED AC 2015; 48:577-82. [PMID: 25831203 PMCID: PMC4470318 DOI: 10.1590/1414-431x20154530] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Accepted: 01/28/2015] [Indexed: 02/07/2023]
Abstract
Male circumcision is the most frequently performed procedure by urologists. Safety and efficacy of the circumcision procedure requires continual improvement. In the present study, we investigated the safety and efficacy of a new male circumcision technique involving the use of a circular stapler. In total, 879 consecutive adult male patients were randomly divided into 2 groups: 441 underwent stapler circumcision, and 438 underwent conventional circumcision. The operative time, pain score, blood loss volume, healing time, treatment costs, and postoperative complications were compared between the two groups. The operative time and blood loss volume were significantly lower in the stapler group than in the conventional group (6.8 ± 3.1 vs 24.2 ± 3.2 min and 1.8 ± 1.8 vs 9.4 ± 1.5 mL, respectively; P<0.01 for both). The intraoperative and postoperative pain scores were significantly lower in the stapler group than in the conventional group (0.8 ± 0.5 vs 2.4 ± 0.8 and 4.0 ±0.9 vs 5.8 ± 1.0, respectively; P<0.01 for both). Additionally, the stapler group had significantly fewer complications than the conventional group (2.7% vs 7.8%, respectively; P<0.01). However, the treatment costs in the stapler group were much higher than those in the conventional group (US$356.60 ± 8.20 vs US$126.50 ± 7.00, respectively; P<0.01). Most patients (388/441, 88.0%) who underwent stapler circumcision required removal of residual staple nails. Overall, the present study has shown that stapler circumcision is a time-efficient and safe male circumcision technique, although it requires further improvement.
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Affiliation(s)
- X D Jin
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - J J Lu
- Department of Urology, Beilun People's Hospital, Ningbo, China
| | - W H Liu
- Department of Urology, Beilun People's Hospital, Ningbo, China
| | - J Zhou
- Department of Urology, Beilun People's Hospital, Ningbo, China
| | - R K Yu
- Department of Urology, Beilun People's Hospital, Ningbo, China
| | - B Yu
- Department of Urology, Yuyao People's Hospital, Ningbo, China
| | - X J Zhang
- Department of Urology, Xiangshan First People's Hospital, Ningbo, China
| | - B H Shen
- Department of Urology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Jin XD, Wu H, Chen ZM, Song HJ, He YL. [Phosphorus fractions, sorption characteristics and its release in the sediments of Yangtze Estuary Reservoir, China]. Huan Jing Ke Xue 2015; 36:448-456. [PMID: 26031069] [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: 06/04/2023]
Abstract
To analyze the sediment phosphorus (P) fractions and sorption characteristics and P release from sediment of reservoir in Yangtze estuary, the sediment was investigated during April, 2011 to January, 2012. Results of chemical fractionation analysis showed that total P (TP) content in sediment ranged from 535.07 to 910.9 mg x kg(-1), inorganic P (IP) was a dominant component of TP and the content of organic P (OP) was low. IP presented in the form of P bounded to calcium ( HCl-P) and dominated 75.57% of TP. The batch experiments showed that sediments had the maximum P adsorption capacity from 9.78 to 39.84 mg x kg(-1), sorption data fitted the modified Langmuir isotherm model. However, EPC0 ( equilibrium phosphorus concentration) in all sampling sites was higher than the soluble-reactive P concentration in water column, which was from 0.024-0.12 mg x L(-1). Accordingly, the sediments from those sampling sites would release phosphorus into the overlying water as a P release source. The maximum released amount from sediment was 11.03 mg x kg(-1) about 6 hours. Correlation between P released amount and NaOH-P was found (P < 0.01), and sediment P release would mainly originate from the NaOH-P, OP and HCl-P fraction. It is evident that the inherent phosphorus present in sediments would be a major threat to the water quality in Yangtze River estuary reservoir.
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Shen ZJ, Chen SW, Wang S, Jin XD, Chen J, Zhu Y, Zhang RM. Predictive factors for open conversion of laparoscopic adrenalectomy: a 13-year review of 456 cases. J Endourol 2008; 21:1333-7. [PMID: 18042025 DOI: 10.1089/end.2006.450] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND AND PURPOSE Laparoscopic adrenalectomy has largely replaced open adrenalectomy for the treatment of adrenal tumor. However, certain cases still require conversion to open procedures. Identifying the risk of conversion remains difficult. This study identified risk factors that may predict conversion from a laparoscopic to an open procedure. PATIENTS AND METHODS From January 1993 to September 2006, a total of 456 laparoscopic adrenalectomies were performed at two urologic centers. A retrospective analysis of parameters, including tumor size, patient age, American Society of Anesthesiology classification, body mass index (BMI), sex, laparoscopic approach, previous abdominal surgery, laterality, type of tumor, laparoscopist experience, and surgeon, was performed. Multivariate logistic regression was used to identify those variables predicting conversion. RESULTS A total of 25 (5.5%) laparoscopic adrenalectomies required conversion. Significant predictors of conversion according to univariate analysis were tumor size > or =5 cm, BMI > or =24 kg/m(2), and pheochromocytoma. Multivariate analysis showed that the significant independent predictive factors for conversion were tumor size > or =5 cm (8.884 greater odds ratio [OR] of conversion; 95% confidence interval 3.543, 22.277; P < 0.001), BMI > or = 24 kg/m(2) (OR 3.632; 95% confidence interval 1.367, 9.648; P = 0.010), and pheochromocytoma (OR 3.068; 95% confidence interval 1.175, 8.007; P = 0.022). CONCLUSIONS Knowledge of tumor size, BMI, and tumor type can help in counseling patients undergoing laparoscopic adrenalectomy with regard to the probability of conversion. The size of the tumor was found to be the most important predictor.
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Affiliation(s)
- Z J Shen
- Department of Urology, Rui-Jin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, PR China.
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Shen ZJ, Jin XD, Chen ZD, Shi YH. Effect of aging on penile ultrastructure. Asian J Androl 2001; 3:281-4. [PMID: 11753473] [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: 02/23/2023] Open
Abstract
AIM To clarify whether there are anatomical changes in tunica albuginea and corpora cavemosa in aged rats. METHODS Seventeen male Sprague-Dawley rats were divided into three groups based on age. Group A consisted of young rats (9 weeks), Group B, middle aged rats (14 weeks) and Group C, old rats (62 weeks). The penile samples were obtained and observed under a scanning electron microscope. RESULTS The thickness (mean +/- SD) of the tunica albuginea was 0.14 +/- 0.02, 0.16 +/- 0.03 and 0.06 +/- 0.02 mm in Groups A, B and C, respectively. The tunica albuginea of group C was significantly thinner than those of the other two groups (P < 0.05) and the elastic fibers were diminished in the old rats. In the corpora cavernosa of old rats, the intracavernous pillars were irregular, in which many large collagen fibers could be observed, and the smooth muscle and elastic fibers were reduced. CONCLUSION In old rats, the tunica albuginea became thinner with diminished elastic fibers; the collagen fibers of corpora cavernosa were increased while the smooth muscle and elastic fibers were reduced.
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Affiliation(s)
- Z J Shen
- Department of Urology, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
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Jin XD, Tian SJ, Wang N, Wang JH, Cheng CP. [Effect of tyrosine on progesterone production by perifused rat large and small corpus luteal cells]. Sheng Li Xue Bao 1994; 46:514-9. [PMID: 7846554] [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
The effect of tyrosine on progesterone production by rat large and small luteal cells was studied by perifusion method. The large and small luteal cells were separated by sucrose density gradient centrifugation. After pre-perifusion for 1 h the effluent from the perifused large or small cells was separately collected at 10 min intervals by a fraction collector. Progesterone content of each sample was measured by RIA. Results showed that the basal progesterone production by large luteal cells was 2-fold more than that of the small ones. However, the suppressive effect of tyrosine on hCG- induced progesterone production was more pronounced in small luteal cells. These differences may be due to the fact that small luteal cells uptake more 3H- tyrosine.
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Affiliation(s)
- X D Jin
- Department of Physiology, Harbin Medical University
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Jin XD. [Clinical significance of haptoglobin determination]. Zhonghua Yi Xue Za Zhi 1987; 67:448-51, 30. [PMID: 3123034] [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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Jin XD. [Analysis of serum haptoglobin typing in 1,390 subjects of Han nationality]. Zhonghua Yi Xue Za Zhi 1984; 64:287-90. [PMID: 6435824] [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: 01/20/2023]
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