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OTAKA Y, KANAI K, TOMATSU A, SANGU R, OKADA D, NAGAI N, YAMASHITA Y, ICHIKAWA Y, SAKAI A, TAJIMA K. Oral 5-aminolevulinic acid combined with sodium ferrous citrate prevents blood-aqueous barrier breakdown after anterior chamber paracentesis in healthy beagle dogs. J Vet Med Sci 2023; 85:1257-1260. [PMID: 37880141 PMCID: PMC10788171 DOI: 10.1292/jvms.23-0347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Accepted: 10/07/2023] [Indexed: 10/27/2023] Open
Abstract
This study investigated the preventive effect of 5-aminolevulinic acid combined with sodium ferrous citrate (5-ALA/SFC) on blood-aqueous barrier (BAB) breakdown induced after anterior chamber paracentesis (ACP) in beagles. 5-ALA/SFC (1/0.64 mg/kg or 3/1.92 mg/kg) or carprofen (4.0 mg/kg) was orally administered daily for 7 days prior to ACP. Then, a sample of the aqueous humor (AH) was collected from one eye via ACP (first sample) and again 60 min later (second sample). The protein and prostaglandin E2 (PGE2) concentrations in both samples were measured. Compared with the control group, high-dose 5-ALA/SFC and carprofen significantly reduced the AH protein and PGE2 concentrations in the second sample. Our findings suggest that 5-ALA/SFC suppresses BAB breakdown in dogs.
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Affiliation(s)
- Yuya OTAKA
- Department of Small Animal Internal Medicine II, School of
Veterinary Medicine, Kitasato University, Aomori, Japan
| | - Kazutaka KANAI
- Department of Small Animal Internal Medicine II, School of
Veterinary Medicine, Kitasato University, Aomori, Japan
| | - Aoi TOMATSU
- Department of Small Animal Internal Medicine II, School of
Veterinary Medicine, Kitasato University, Aomori, Japan
| | - Riyo SANGU
- Department of Small Animal Internal Medicine II, School of
Veterinary Medicine, Kitasato University, Aomori, Japan
| | - Daiki OKADA
- Department of Small Animal Internal Medicine II, School of
Veterinary Medicine, Kitasato University, Aomori, Japan
| | - Noriaki NAGAI
- Faculty of Pharmacy, Kindai University, Osaka, Japan
| | - Yohei YAMASHITA
- Department of Small Animal Internal Medicine II, School of
Veterinary Medicine, Kitasato University, Aomori, Japan
| | - Yoichiro ICHIKAWA
- Department of Small Animal Internal Medicine II, School of
Veterinary Medicine, Kitasato University, Aomori, Japan
| | - Aki SAKAI
- One Health Business Department, Companion Animal Group
Neopharma Japan Co., Ltd., Tokyo, Japan
| | - Kazuki TAJIMA
- Department of Small Animal Internal Medicine II, School of
Veterinary Medicine, Kitasato University, Aomori, Japan
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Takano T, Satoh K, Doki T. Possible Antiviral Activity of 5-Aminolevulinic Acid in Feline Infectious Peritonitis Virus (Feline Coronavirus) Infection. Front Vet Sci 2021; 8:647189. [PMID: 33644160 PMCID: PMC7903937 DOI: 10.3389/fvets.2021.647189] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 01/20/2021] [Indexed: 11/13/2022] Open
Abstract
Feline infectious peritonitis (FIP) is a life-threatening infectious disease of cats caused by virulent feline coronavirus (FIP virus: FIPV). For the treatment of FIP, several effective antivirals were recently reported, but many of these are not available for practical use. 5-amino levulinic acid (5-ALA) is a low-molecular-weight amino acid synthesized in plant and animal cells. 5-ALA can be synthesized in a large amount, and it is widely applied in the medical and agricultural fields. We hypothesized that 5-ALA inhibits FIPV infection. Therefore, we evaluated its antiviral activity against FIPV in felis catus whole fetus-4 cells and feline primary macrophages. FIPV infection was significantly inhibited by 250 μM 5-ALA. Our study suggested that 5-ALA is applicable for the treatment and prevention of FIPV infection.
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Affiliation(s)
- Tomomi Takano
- Laboratory of Veterinary Infectious Disease, Department of Veterinary Medicine, Kitasato University, Towada, Japan
| | - Kumi Satoh
- Laboratory of Veterinary Infectious Disease, Department of Veterinary Medicine, Kitasato University, Towada, Japan
| | - Tomoyoshi Doki
- Laboratory of Veterinary Infectious Disease, Department of Veterinary Medicine, Kitasato University, Towada, Japan
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