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Dai Y, Peng Y, Lu Z, Mao T, Chen K, Lu X, Liu K, Zhou X, Hu W, Wang H. Prenatal prednisone exposure impacts liver development and function in fetal mice and its characteristics. Toxicol Sci 2024; 199:63-80. [PMID: 38439560 DOI: 10.1093/toxsci/kfae027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2024] Open
Abstract
Prednisone, a widely used glucocorticoid drug in human and veterinary medicine, has been reported to cause developmental toxicity. However, systematic studies about the effect of prednisone on fetal liver development are still unclear. We investigated the potential effects of maternal exposure to clinically equivalent doses of prednisone during different gestational stages on cell proliferation and apoptosis, cell differentiation, glucose and lipid metabolism, and hematopoiesis in the liver of fetal mice, and explored the potential mechanisms. Results showed that prenatal prednisone exposure (PPE) could suppress cell proliferation, inhibit hepatocyte differentiation, and promote cholangiocyte differentiation in the fetal liver. Meanwhile, PPE could result in the enhancement of glyconeogenesis and bile acid synthesis and the inhibition of fatty acid β-oxidation and hematopoiesis in the fetal liver. Further analysis found that PPE-induced alterations in liver development had obvious stage and sex differences. Overall, the alteration in fetal liver development and function induced by PPE was most pronounced during the whole pregnancy (GD0-18), and the males were relatively more affected than the females. Additionally, fetal hepatic insulin-like growth factor 1 (IGF1) signaling pathway was inhibited by PPE. In conclusion, PPE could impact fetal liver development and multiple functions, and these alterations might be partially related to the inhibition of IGF1 signaling pathway.
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Affiliation(s)
- Yongguo Dai
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, Hubei Province 430071, China
| | - Yu Peng
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, Hubei Province 430071, China
| | - Zhengjie Lu
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, Hubei Province 430071, China
- Department of Pharmacy, Zhongnan Hospital of Wuhan University, Wuhan, Hubei Province 430071, China
| | - Tongyun Mao
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, Hubei Province 430071, China
| | - Kaiqi Chen
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, Hubei Province 430071, China
| | - Xiaoqian Lu
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, Hubei Province 430071, China
| | - Kexin Liu
- Department of Pharmacy, Zhongnan Hospital of Wuhan University, Wuhan, Hubei Province 430071, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan University School of Basic Medical Sciences, Wuhan, Hubei Province 430071, China
| | - Xinli Zhou
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, Hubei Province 430071, China
| | - Wen Hu
- Department of Pharmacy, Zhongnan Hospital of Wuhan University, Wuhan, Hubei Province 430071, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan University School of Basic Medical Sciences, Wuhan, Hubei Province 430071, China
| | - Hui Wang
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, Hubei Province 430071, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan University School of Basic Medical Sciences, Wuhan, Hubei Province 430071, China
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Baran A, Sulukan E, Türkoğlu M, Ghosigharehagaji A, Yildirim S, Kankaynar M, Bolat I, Kaya M, Topal A, Ceyhun SB. Is sodium carboxymethyl cellulose (CMC) really completely innocent? It may be triggering obesity. Int J Biol Macromol 2020; 163:2465-2473. [PMID: 32987073 DOI: 10.1016/j.ijbiomac.2020.09.169] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 09/08/2020] [Accepted: 09/20/2020] [Indexed: 12/21/2022]
Abstract
The toxicity of sodium carboxymethyl cellulose (CMC), which has GRAS status and has been determined as "ADI non specified", was re-evaluated with a new modelling and molecular-based data. For this purpose, CMC, a food additive, was injected to the yolk sac (food) of the zebrafish embryo by the microinjection method at the 4th hour of fertilization at different concentrations. As a result, it was found that CMC showed no toxic effects within the framework of the parameters studied. But, we determined increasing lipid accumulation in zebrafish embryos exposed to CMC in a dose-dependent manner. To elucidate the mechanism underlying this lipid accumulation, the expression levels of genes related to obesity-linked lipid metabolism were examined. Our findings show that while CMC does not cause a toxic effect in zebrafish embryos, it can lead important effects on lipid metabolism by causing changes in the expression of some genes associated with obesity.
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Affiliation(s)
- Alper Baran
- Department of Food Quality Control and Analysis, Erzurum Vocational School, Atatürk University, Erzurum, Turkey
| | - Ekrem Sulukan
- Department of Aquaculture, Faculty of Fisheries, Atatürk University, Erzurum, Turkey; Aquatic Biotechnology Laboratory, Faculty of Fisheries, Atatürk University, Erzurum, Turkey
| | - Medine Türkoğlu
- Aquatic Biotechnology Laboratory, Faculty of Fisheries, Atatürk University, Erzurum, Turkey; Department of Nanoscience, Graduate School of Natural and Applied Science, Atatürk University, Erzurum, Turkey
| | - Atena Ghosigharehagaji
- Aquatic Biotechnology Laboratory, Faculty of Fisheries, Atatürk University, Erzurum, Turkey
| | - Serkan Yildirim
- Department of Pathology, Faculty of Veterinary, Atatürk University, Erzurum, Turkey
| | - Meryem Kankaynar
- Aquatic Biotechnology Laboratory, Faculty of Fisheries, Atatürk University, Erzurum, Turkey; Department of Nanoscience, Graduate School of Natural and Applied Science, Atatürk University, Erzurum, Turkey
| | - Ismail Bolat
- Department of Pathology, Faculty of Veterinary, Atatürk University, Erzurum, Turkey
| | - Mükerrem Kaya
- Department of Food Engineering, Faculty of Agriculture, Atatürk University, Erzurum, Turkey
| | - Ahmet Topal
- Department of Basic Sciences, Faculty of Fisheries, Atatürk University, TR-25240 Erzurum, Turkey
| | - Saltuk Buğrahan Ceyhun
- Aquatic Biotechnology Laboratory, Faculty of Fisheries, Atatürk University, Erzurum, Turkey; Department of Nanoscience, Graduate School of Natural and Applied Science, Atatürk University, Erzurum, Turkey.
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Crankshaw DL, Berkeley LI, Cohen JF, Shirota FN, Nagasawa HT. Double-prodrugs of L-cysteine: differential protection against acetaminophen-induced hepatotoxicity in mice. J Biochem Mol Toxicol 2003; 16:235-44. [PMID: 12439865 DOI: 10.1002/jbt.10044] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A series of double-prodrugs of L-cysteine, designed to release L-cysteine in vivo and stimulate the biosynthesis of glutathione (GSH), were synthesized. To evaluate the hepatoprotective effectiveness of these double-prodrugs, male Swiss-Webster mice were administered acetaminophen (ACP) (2.45 mmol/kg (360 mg/kg), intraperitoneally (i.p.)). Prodrug (2.50 mmol/kg, i.p. or 1.25 mmol/kg, i.p., depending on the protocol) was administered 1 h before ACP as a priming dose. A supplementary dose of prodrug (2.5 mmol/kg, i.p. or 1.25 mmol/kg, i.p. depending on the protocol) was administered 0.5 h after ACP. The plasma alanine amino transferase (ALT) values, 24 h after ACP administration were transformed to logs and the 95% and 99% confidence intervals of the log values were plotted and compared for each group. Hepatoprotection was assessed by the degree of attenuation of plasma ALT levels. With these multiple dose schedules, the use of 2% carboxymethylcellulose as vehicle for the prodrugs was found to be detrimental; therefore, the prodrugs were dissolved in dilute aqueous base and the pH adjusted for administration. When a priming dose was given 1 h before ACP followed by a supplementary dose 0.5 h after ACP, only N,S-bis-acetyl-L-cysteine, where both the sulfhydryl and amino groups of L-cysteine were functionalized with the acetyl group, was found to be effective in protecting mice against the hepatotoxic effects of ACP. This suggests that these acetyl groups were rapidly hydrolyzed in vivo to liberate L-cysteine. In contrast, N-acetylation of 2(R,S)-methylthiazolidine-4(R)-carboxylic acid (MTCA) and its 2-n-propyl analog (PTCA), or N-acetylation of 2-oxothiazolidine-4-carboxylic acid (OTCA), reduced the hepatoprotective effects relative to the parent MTCA, PTCA, and OTCA, indicating that the release of L-cysteine in vivo from these N-acetylated thiazolidine prodrugs was metabolically unfavorable. The carbethoxy group, whether functionalized on the sulfhydryl or on the amino group of L-cysteine, or on the secondary amino group of MTCA, appears to be a poor "pro-moiety," since these carbethoxylated double-prodrugs of L-cysteine did not protect mice from ACP-induced hepatotoxicity.
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Affiliation(s)
- Daune L Crankshaw
- Medical Research Laboratories, DVA Medical Center, Minneapolis, MN 55417, USA
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Skoglund LA, Ingebrigtsen K, Nafstad I. Effects of methylcellulose on hepatic glutathione levels and plasma ALAT following single oral administration to male Bom:NMRI mice. GENERAL PHARMACOLOGY 1987; 18:497-9. [PMID: 3653674 DOI: 10.1016/0306-3623(87)90069-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
1. A single p.o. dose of 1% w/v methylcellulose 0.013 ml/kg was given to male Bom:NMRI mice using untreated animals as controls. 2. A circadian fluctuation was seen in the hepatic glutathione levels (GSH) of both the methylcellulose and untreated animal group. 3. The methylcellulose administration did not affect the hepatic GSH or plasma ALAT level compared to untreated animals. 4. Histological examination did not reveal any abnormalities of the stomach wall, liver or kidney during the 12 hr trial period. 5. Male Bom:NMRI mice treated with 1% w/v methylcellulose can be considered representative of untreated controls in short-term experiments studying liver GSH and plasma ALAT levels.
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Affiliation(s)
- L A Skoglund
- Department of Pharmacology and Toxicology, Norwegian College of Veterinary Medicine, Oslo 1
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