1
|
Johns JL, Baumgartner TR, Sanchez CR, Dolan BP. Phagocytic Function and Flow Cytometric Phenotype of Asian Elephant Monocytes. Animals (Basel) 2024; 14:2297. [PMID: 39199831 PMCID: PMC11350674 DOI: 10.3390/ani14162297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2024] [Revised: 07/22/2024] [Accepted: 07/31/2024] [Indexed: 09/01/2024] Open
Abstract
Optimal veterinary care of managed elephant populations is vital due to the continued decline of wild populations. Appropriate health monitoring and accurate disease diagnosis include hematologic evaluation. Elephant hematology is distinctive in that elephants have high percentages of monocytes in health. Elephant monocytes also have unusual morphology, a feature shared with manatees and rock hyraxes. Manual white blood cell counting is used for elephant hematology, as analyzers are generally inaccurate. The aims of this study were to evaluate basic cell isolation and functional testing protocols for use in elephant monocyte research, and to test several available antibodies via flow cytometry for use in elephant monocyte identification. Peripheral blood samples from five Asian elephants (Elephas maximus) were used. Methods for monocyte isolation and evaluation of phagocytic function were established. Putative lymphocyte and monocyte populations were identified using a scatter on flow cytometry. Antibodies against CD11b, CD11c, CD14, and ionized calcium-binding adapter molecule 1 (IBA1) were tested, with IBA1 showing the highest apparent diagnostic utility in labeling monocytes. Combined flow cytometric scatter and IBA1 positivity appear to identify Asian elephant monocytes. These data provide a methodologic basis for further investigation into elephant monocyte function and immune response to infection.
Collapse
Affiliation(s)
- Jennifer L. Johns
- Department of Biomedical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, OR 97331, USA; (T.R.B.); (B.P.D.)
| | - Trinity R. Baumgartner
- Department of Biomedical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, OR 97331, USA; (T.R.B.); (B.P.D.)
| | | | - Brian P. Dolan
- Department of Biomedical Sciences, Carlson College of Veterinary Medicine, Oregon State University, Corvallis, OR 97331, USA; (T.R.B.); (B.P.D.)
| |
Collapse
|
2
|
Shi C, Lytle A, Milman T, Penne R, Bagg A. Composite Histiocytic Sarcoma and Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma of the Ocular Adnexa. Ophthalmic Plast Reconstr Surg 2024:00002341-990000000-00377. [PMID: 38624159 DOI: 10.1097/iop.0000000000002670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Histiocytic sarcoma (HS) is a rare and aggressive hematologic neoplasm characterized by the proliferation of malignant histiocytes. It infrequently presents with periorbital involvement. Here we present the first documented case of ocular adnexal histiocytic sarcoma composite with chronic lymphocytic leukemia/small lymphocytic lymphoma and provide compelling evidence for the transdifferentiation of chronic lymphocytic leukemia/small lymphocytic lymphoma to histiocytic sarcoma in an 80-year-old woman. Comprehending the clinicopathological characteristics of histiocytic sarcoma and various other histiocytic proliferations and neoplasms affecting orbital and ocular structures is imperative for ophthalmic surgeons and pathologists.
Collapse
Affiliation(s)
- Chenxu Shi
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, U.S.A
| | - Andrew Lytle
- Centre for Lymphoid Cancer, BC Cancer and Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Tatyana Milman
- Department of Ophthalmology Wills Eye Hospital, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
- Department of Pathology, Wills Eye Hospital, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
| | - Robert Penne
- Department of Ophthalmology Wills Eye Hospital, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
- Department of Oculoplastic and Orbital Surgery, Wills Eye Hospital, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania, U.S.A
| | - Adam Bagg
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, U.S.A
| |
Collapse
|
3
|
El-Naseery NI, Elewa YHA, El-Behery EI, Dessouky AA. Human umbilical cord blood-derived mesenchymal stem cells restored hematopoiesis by improving radiation induced bone marrow niche remodeling in rats. Ann Anat 2023; 250:152131. [PMID: 37460043 DOI: 10.1016/j.aanat.2023.152131] [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: 02/14/2023] [Revised: 04/07/2023] [Accepted: 06/20/2023] [Indexed: 08/04/2023]
Abstract
BACKGROUND Functional hematopoiesis is governed by the bone marrow (BM) niche, which is compromised by radiotherapy, leading to radiation induced BM failure. The aim of this study was to demonstrate the radiation induced pathological remodeling of the niche and the efficacy of human umbilical cord blood-derived mesenchymal stem cells (hUCB-MSCs) in restoring hematopoiesis via improvement of the niche. METHODS Thirty male Wistar rats were equally assigned to three groups: control (CON), irradiated (IR), and IR+hUCB-MSCs. Biochemical, histopathological and immunohistochemical analyses were performed to detect collagen type III and IV, Aquaporin 1+ sinusoidal endothelial cells and immature hematopoietic cells, CD11c+ dendritic cells, Iba1+ macrophages, CD9+ megakaryocytes, Sca-1+, cKit+, CD133 and N-cadherin+ hematopoietic stem and progenitor cells, CD20+, Gr1+ mature hematopoietic cells, in addition to ki67+ proliferation, Bcl-2+ anti-apoptotic, caspase-3+ apoptotic, TNF-α+ inflammatory cells. Histoplanimetry data were statistically analyzed using the one-way analysis of variance followed by the post hoc Duncan's test. Moreover, Pearson's correlation was used to assess the correlation between various parameters. RESULTS In comparison to the IR group, the IR+hUCB-MSCs group showed restored cell populations and extracellular collagen components of the BM niche with significant increase in hematopoietic stem, progenitor, mature and proliferating cells, and a considerable decrease in apoptotic and inflammatory cells. Furthermore, highly significant correlations between BM niche and blood biochemical, histopathological, and immunohistochemical parameters were observed. CONCLUSION hUCB-MSCs restored functional hematopoiesis through amelioration of the BM niche components via reduction of oxidative stress, DNA damage, inflammation, and apoptosis with upregulation of cellular proliferation.
Collapse
Affiliation(s)
- Nesma I El-Naseery
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Zagazig University, P.O. Box, 44511, Zagazig, Egypt.
| | - Yaser H A Elewa
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Zagazig University, P.O. Box, 44511, Zagazig, Egypt; Laboratory of Anatomy, Basic Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo 060-818, Japan
| | - Eman I El-Behery
- Anatomy & Embryology Department, Faculty of Veterinary Medicine, Zagazig University, P.O. Box, 44511 Zagazig, Egypt
| | - Arigue A Dessouky
- Department of Medical Histology and Cell Biology, Faculty of Medicine, Zagazig University, P.O. Box, 44519 Zagazig, Egypt
| |
Collapse
|
4
|
Zhu Y, Xu Y, Yan J, Fang Y, Dong N, Shan A. "AMP plus": Immunostimulant-Inspired Design Based on Chemotactic Motif -( PhHA hPH) n. ACS APPLIED MATERIALS & INTERFACES 2023; 15:43563-43579. [PMID: 37691475 DOI: 10.1021/acsami.3c09353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
Ability to stimulate antimicrobial immunity has proven to be a useful therapeutic strategy in treating infections, especially in the face of increasing antibiotic resistance. Natural antimicrobial peptides (AMPs) exhibiting immunomodulatory functions normally encompass complex activities, which make it difficult to optimize their therapeutic benefits. Here, a chemotactic motif was harnessed as a template to design a series of AMPs with immunostimulatory activities plus bacteria-killing activities ("AMP plus"). An amphipathic peptide ((PhHAhPH)n) was employed to improve the antimicrobial impact and expand the therapeutic potential of the chemotactic motif that lacked obvious bacteria-killing properties. A total of 18 peptides were designed and evaluated for their structure-activity relationships. Among the designed, KWH2 (1) potently killed bacteria and exhibited a narrow antimicrobial spectrum against Gram-negative bacteria and (2) activated macrophages (i.e., inducing Ca2+ influx, cell migration, and reactive oxygen species production) as a macrophage chemoattractant. Membrane permeabilization is the major antimicrobial mechanism of KWH2. Furthermore, the mouse subcutaneous abscess model supported the dual immunomodulatory and antimicrobial potential of KWH2 in vivo. The above results confirmed the efficiency of KWH2 in treating bacterial infection and provided a viable approach to develop immunomodulatory antimicrobial materials with desired properties.
Collapse
Affiliation(s)
- Yunhui Zhu
- Laboratory of Molecular Nutrition and Immunity, Nutrition and Immunity, College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150038, China
| | - Yinghan Xu
- Laboratory of Molecular Nutrition and Immunity, Nutrition and Immunity, College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150038, China
| | - Jianming Yan
- Laboratory of Molecular Nutrition and Immunity, Nutrition and Immunity, College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150038, China
| | - Yuxin Fang
- Laboratory of Molecular Nutrition and Immunity, Nutrition and Immunity, College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150038, China
| | - Na Dong
- Laboratory of Molecular Nutrition and Immunity, Nutrition and Immunity, College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150038, China
| | - Anshan Shan
- Laboratory of Molecular Nutrition and Immunity, Nutrition and Immunity, College of Animal Science and Technology, Northeast Agricultural University, Harbin, Heilongjiang 150038, China
| |
Collapse
|
5
|
Zhang F, Wang QY, Zhou J, Zhou X, Wei X, Hu L, Cheng HL, Yu Q, Cai RL. Electroacupuncture attenuates myocardial ischemia-reperfusion injury by inhibiting microglial engulfment of dendritic spines. iScience 2023; 26:107645. [PMID: 37670780 PMCID: PMC10475514 DOI: 10.1016/j.isci.2023.107645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/28/2023] [Accepted: 08/11/2023] [Indexed: 09/07/2023] Open
Abstract
A major side effect of reperfusion therapy following myocardial infarction is myocardial ischemia-reperfusion injury (MIRI). Electroacupuncture preconditioning (EA-pre) has a long history in the treatment of cardiovascular diseases. Here, we demonstrate how EA-pre attenuates MIRI by affecting the phagocytosis of neuronal dendritic spines of microglia of the fastigial nucleus (FNmicroglia). We observed that EA-pre increased activity in FNGABA and then improved myocardial injury by inhibiting abnormal activities of glutaminergic neurons of the FN (FNGlu) during MIRI. Interestingly, we observed changes in the quantity and shape of FN microglia in mice treated with EA-pre and a decrease in the phagocytosis of FNGABA neuronal dendritic spines by microglia. Furthermore, the effects of improving MIRI were reversed when EA-pre mice were chemically activated by intra-FN lipopolysaccharide injection. Overall, our results provide new insight indicating that EA-pre regulates microglial engulfment capacity, thus promoting the improvement of cardiac sympathetic nervous disorder during MIRI.
Collapse
Affiliation(s)
- Fan Zhang
- College of Acupuncture and Moxibustion, Anhui University of Chinese Medicine, Hefei, Anhui Province, China
| | - Qian-yi Wang
- College of Acupuncture and Moxibustion, Anhui University of Chinese Medicine, Hefei, Anhui Province, China
| | - Jie Zhou
- College of Acupuncture and Moxibustion, Anhui University of Chinese Medicine, Hefei, Anhui Province, China
| | - Xiang Zhou
- College of Acupuncture and Moxibustion, Anhui University of Chinese Medicine, Hefei, Anhui Province, China
| | - Xia Wei
- College of Acupuncture and Moxibustion, Anhui University of Chinese Medicine, Hefei, Anhui Province, China
| | - Ling Hu
- Institute of Acupuncture and Meridian Research, Anhui Academy of Chinese Medicine, Hefei, Anhui Province, China
| | - Hong-liang Cheng
- The Affiliated Hospital of Acupuncture and Moxibustion, Anhui University of Chinese Medicine, Hefei, Anhui Province, China
| | - Qing Yu
- Institute of Acupuncture and Meridian Research, Anhui Academy of Chinese Medicine, Hefei, Anhui Province, China
| | - Rong-lin Cai
- Institute of Acupuncture and Meridian Research, Anhui Academy of Chinese Medicine, Hefei, Anhui Province, China
- Key Laboratory of Xin’an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei, China
| |
Collapse
|
6
|
Huang Z, Huang Q, Xu K, Liang L, Li Y, Zhou W, Ning N, Zhou J, Hu J, Liu S, Dang L. Protective effect of ZYMT, a traditional Chinese patent medicine in a mouse model of retinitis pigmentosa. Biomed Pharmacother 2023; 162:114580. [PMID: 36989720 DOI: 10.1016/j.biopha.2023.114580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/19/2023] [Accepted: 03/21/2023] [Indexed: 03/29/2023] Open
Abstract
Retinitis pigmentosa (RP) is the most common genetic disorder that causes blindness. At present, there exists no remedy for the disease. The aim of the current research was to investigate the protective effect of Zhangyanming Tablets (ZYMT) in a mouse model of RP, and explore the underlying mechanism. Eighty RP mice were randomly divided into two groups. The mice in ZYMT group were administered with ZYMT suspension(0.0378 g/mL), while the mice in model group were given the same volume of distilled water. At day 7 and day 14 after intervention, electroretinogram (ERG), fundus photography, and histological examination were used to assess the retinal function and structure. TUNEL, immunofluorescence and qPCR were used to evaluate cell apoptosis and expressions of Sirt1, Iba1, Bcl-2, Bax and Caspase-3. A significantly shortened latency of ERG waves was observed in ZYMT-treated mice, in comparison to those in the model group (P < 0.05). Histologically, ultrastructure of the retina was better preserved, and the outer nuclear layer (ONL) exhibited marked increase in thickness and cell count in ZYMP group (P < 0.05). The apoptosis rate was decreased markedly in ZYMT group. Immunofluorescence analysis showed that the expressions of Iba1 and Bcl-2 in the retina were increased, Bax and Caspase-3 were decreased after ZYMT intervention, while the qPCR revealed that the expressions of Iba1 and Sirt1 were significantly increased (P < 0.05). This study indicated that ZYMT has protective effect on retinal function and morphology of inherited RP mice in the early stage, possibly mediated via the regulation of antioxidant and anti-/pro-apoptotic factors expressions.
Collapse
|
7
|
Sakurai M, Yamamoto Y, Tamaru M, Shimoda H, Sakai Y, Morimoto M. Disseminated histiocytic sarcoma in a squirrel monkey (Saimiri sciureus). J Med Primatol 2023; 52:121-124. [PMID: 36286409 DOI: 10.1111/jmp.12625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 09/25/2022] [Accepted: 10/03/2022] [Indexed: 11/29/2022]
Abstract
A 14-years-old squirrel monkey was euthanized due to weakness. Histopathological examination revealed multifocal growth of oval cells with severe atypia in the liver, spleen, and bone marrow. The neoplastic cells were positive for histiocytic markers (Iba1, HLA-DR, CD204). This is the fourth case of histiocytic sarcoma in non-human primates.
Collapse
Affiliation(s)
- Masashi Sakurai
- Department of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Yukihiro Yamamoto
- Department of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | | | - Hiroshi Shimoda
- Department of Veterinary Microbiology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| | - Yusuke Sakai
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Masahiro Morimoto
- Department of Veterinary Pathology, Joint Faculty of Veterinary Medicine, Yamaguchi University, Yoshida, Yamaguchi, Japan
| |
Collapse
|
8
|
Kühl B, Beyerbach M, Baumgärtner W, Gerhauser I. Characterization of microglia/macrophage phenotypes in the spinal cord following intervertebral disc herniation. Front Vet Sci 2022; 9:942967. [PMID: 36262531 PMCID: PMC9574228 DOI: 10.3389/fvets.2022.942967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 09/15/2022] [Indexed: 11/13/2022] Open
Abstract
Dogs frequently suffer from traumatic spinal cord injury (SCI). Most cases of SCI have a favorable prognosis but 40-50% of dogs with paraplegia and absence of nociception do not regain ambulatory abilities, eventually leading to euthanasia. Microglia and infiltrating macrophages play a crucial role in inflammatory process after SCI. However, little is known about microglia/macrophage phenotypes representing a potential target for future therapeutic strategies. In the present study, the microglia/macrophage phenotype was characterized by immunohistochemistry in the morphologically unaltered canine spinal cord (10 control dogs) and during acute and subacute SCI (1-4 and 5-10 days post injury, 9 and 8 dogs, respectively) using antibodies directed against IBA1, MAC387, MHC-II, lysozyme, EGR2, myeloperoxidase, CD18, CD204 and lectin from Griffonia simplicifolia (BS-1). The expression of these markers was also analyzed in the spleen as reference for the phenotype of histiocytic cells. Histological lesions were absent in controls. In acute SCI, 4 dogs showed mild to moderate hemorrhages, 2 dogs bilateral gray matter necrosis and 6 dogs mild multifocal axonal swellings and myelin sheath dilation. One dog with acute SCI did not show histological alterations except for few dilated myelin sheaths. In subacute SCI, variable numbers of gitter cells, axonal changes and dilated myelin sheaths were present in all dogs and large areas of tissue necrosis in 2 dogs. Neuronal chromatolysis was found in 3 dogs with acute and subacute SCI, respectively. In control dogs, microglia/macrophage constitutively expressed IBA1 and rarely other markers. In acute SCI, a similar marker expression was found except for an increase in MAC387-positive cells in the spinal cord white matter due to an infiltration of few blood-borne macrophages. In subacute SCI, increased numbers of microglia/macrophages expressed CD18, CD204 and MHC-II in the gray matter SCI indicating enhanced antigen recognition, processing and presentation as well as cell migration and phagocytosis during this stage. Interestingly, only CD204-positive cells were upregulated in the white matter, which might be related to gray-white matter heterogeneity of microglia as previously described in humans. The present findings contribute to the understanding of the immunological processes during SCI in a large animal model for human SCI.
Collapse
Affiliation(s)
- Bianca Kühl
- Department of Pathology, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Martin Beyerbach
- Institute for Biometry, Epidemiology and Information Processing, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Wolfgang Baumgärtner
- Department of Pathology, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany,*Correspondence: Wolfgang Baumgärtner
| | - Ingo Gerhauser
- Department of Pathology, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| |
Collapse
|
9
|
Maezawa M, Nakamichi A, Akiyama N, Tagawa M, Watanabe KI, Kobayashi Y, Inokuma H. Acute myelomonocytic leukemia negative for alpha-naphthyl acetate esterase stain in a Holstein cow. J Vet Med Sci 2021; 83:1643-1647. [PMID: 34511539 PMCID: PMC8636865 DOI: 10.1292/jvms.21-0304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A 4-year, 7-month-old Holstein cow presented with anorexia. Physical examination revealed masses in the interscapular region and vagina. Blast cells were detected in the masses and
peripheral blood by fine needle aspiration cytology and hematological examination. By bone marrow aspiration, blast cells constituted up to 24.2% of all nucleated cells, and 22% and 2% of
non-erythroid cells stained positive for myeloperoxidase and alpha-naphthyl acetate esterase (ANAE), respectively. Pathological examination revealed the mass lesions consisted of a
proliferation of tumor cells, which were positive for monocytic markers (HLA-DR and Iba-1). The cow was diagnosed with acute myelomonocytic leukemia (AMML). Even when tumor cells are
ANAE-negative, AMML cannot be completely ruled out and should be considered when diagnosing cattle with leukemia/lymphoma.
Collapse
Affiliation(s)
- Masaki Maezawa
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Ai Nakamichi
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido 080-8555, Japan
| | - Nao Akiyama
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Michihito Tagawa
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido 080-8555, Japan
| | - Ken-Ichi Watanabe
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido 080-8555, Japan
| | - Yoshiyasu Kobayashi
- Department of Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine, Inada, Obihiro, Hokkaido 080-8555, Japan
| | - Hisashi Inokuma
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan
| |
Collapse
|