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For: Sidikou DI, Banga-Mboko H, Tamboura HH, Hornick JL, Remy B, Beckers JF. Correlation between a proteolytic method and a radioimmunoassay for porcine serum pepsinogen concentrations. Res Vet Sci 2005;80:260-6. [PMID: 16085154 DOI: 10.1016/j.rvsc.2005.06.004] [Citation(s) in RCA: 1] [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] [Received: 12/11/2003] [Revised: 04/18/2005] [Accepted: 06/10/2005] [Indexed: 10/25/2022]

For:	Sidikou DI, Banga-Mboko H, Tamboura HH, Hornick JL, Remy B, Beckers JF. Correlation between a proteolytic method and a radioimmunoassay for porcine serum pepsinogen concentrations. Res Vet Sci 2005;80:260-6. [PMID: 16085154 DOI: 10.1016/j.rvsc.2005.06.004] [Citation(s) in RCA: 1] [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] [Received: 12/11/2003] [Revised: 04/18/2005] [Accepted: 06/10/2005] [Indexed: 10/25/2022]

Number	Cited by Other Article(s)
1	Clinical effects of transcatheter hepatic arterial embolization with holmium-166 poly(L-lactic acid) microspheres in healthy pigs. Eur J Nucl Med Mol Imaging 2008;35:1259-71. [PMID: 18330569 PMCID: PMC2440967 DOI: 10.1007/s00259-008-0747-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2007] [Accepted: 02/04/2008] [Indexed: 11/13/2022] Abstract Purpose The aim of this study is to evaluate the toxicity of holmium-166 poly(l-lactic acid) microspheres administered into the hepatic artery in pigs. Methods Healthy pigs (20–30 kg) were injected into the hepatic artery with holmium-165-loaded microspheres (¹⁶⁵HoMS; n = 5) or with holmium-166-loaded microspheres (¹⁶⁶HoMS; n = 13). The microspheres’ biodistribution was assessed by single-photon emission computed tomography and/or MRI. The animals were monitored clinically, biochemically, and (¹⁶⁶HoMS group only) hematologically over a period of 1 month (¹⁶⁵HoMS group) or over 1 or 2 months (¹⁶⁶HoMS group). Finally, a pathological examination was undertaken. Results After microsphere administration, some animals exhibited a slightly diminished level of consciousness and a dip in appetite, both of which were transient. Four lethal adverse events occurred in the ¹⁶⁶HoMS group due either to incorrect administration or comorbidity: inadvertent delivery of microspheres into the gastric wall (n = 2), preexisting gastric ulceration (n = 1), and endocarditis (n = 1). AST levels were transitorily elevated post-¹⁶⁶HoMS administration. In the other blood parameters, no abnormalities were observed. Nuclear scans were acquired from all animals from the ¹⁶⁶HoMS group, and MRI scans were performed if available. In pigs from the ¹⁶⁶HoMS group, atrophy of one or more liver lobes was frequently observed. The actual radioactivity distribution was assessed through ex vivo ^166mHo measurements. Conclusion It can be concluded that the toxicity profile of HoMS is low. In pigs, hepatic arterial embolization with ¹⁶⁶HoMS in amounts corresponding with liver-absorbed doses of over 100 Gy, if correctly administered, is not associated with clinically relevant side effects. This result offers a good perspective for upcoming patient trials. Collapse Key Words Collapse MESH Headings Collapse Grants Collapse Affiliation(s) Collapse

Number

Cited by Other Article(s)

Clinical effects of transcatheter hepatic arterial embolization with holmium-166 poly(L-lactic acid) microspheres in healthy pigs. Eur J Nucl Med Mol Imaging 2008;35:1259-71. [PMID: 18330569 PMCID: PMC2440967 DOI: 10.1007/s00259-008-0747-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2007] [Accepted: 02/04/2008] [Indexed: 11/13/2022]

Abstract

Purpose

The aim of this study is to evaluate the toxicity of holmium-166 poly(l-lactic acid) microspheres administered into the hepatic artery in pigs.

Methods

Healthy pigs (20–30 kg) were injected into the hepatic artery with holmium-165-loaded microspheres (¹⁶⁵HoMS; n = 5) or with holmium-166-loaded microspheres (¹⁶⁶HoMS; n = 13). The microspheres’ biodistribution was assessed by single-photon emission computed tomography and/or MRI. The animals were monitored clinically, biochemically, and (¹⁶⁶HoMS group only) hematologically over a period of 1 month (¹⁶⁵HoMS group) or over 1 or 2 months (¹⁶⁶HoMS group). Finally, a pathological examination was undertaken.

Results

After microsphere administration, some animals exhibited a slightly diminished level of consciousness and a dip in appetite, both of which were transient. Four lethal adverse events occurred in the ¹⁶⁶HoMS group due either to incorrect administration or comorbidity: inadvertent delivery of microspheres into the gastric wall (n = 2), preexisting gastric ulceration (n = 1), and endocarditis (n = 1). AST levels were transitorily elevated post-¹⁶⁶HoMS administration. In the other blood parameters, no abnormalities were observed. Nuclear scans were acquired from all animals from the ¹⁶⁶HoMS group, and MRI scans were performed if available. In pigs from the ¹⁶⁶HoMS group, atrophy of one or more liver lobes was frequently observed. The actual radioactivity distribution was assessed through ex vivo ^166mHo measurements.

Conclusion

It can be concluded that the toxicity profile of HoMS is low. In pigs, hepatic arterial embolization with ¹⁶⁶HoMS in amounts corresponding with liver-absorbed doses of over 100 Gy, if correctly administered, is not associated with clinically relevant side effects. This result offers a good perspective for upcoming patient trials.

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