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El-Ansary RE, Kasem S, El-Tabakh MAM, Badr Y, Abdel-Moneim AS. Isolation, molecular characterization, and genetic diversity of recently isolated foot-and-mouth disease virus serotype A in Egypt. PLoS One 2023; 18:e0295319. [PMID: 38051725 DOI: 10.1371/journal.pone.0295319] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 11/19/2023] [Indexed: 12/07/2023] Open
Abstract
Foot-and-mouth Disease (FMD) is a highly contagious viral disease affecting all hoof-cloven animals. Serotypes A, O and SAT 2 of the foot-and-mouth disease virus (FMDV) are circulating in Egypt. The present study aimed to identify and molecularly characterize the FMDV strains circulating in Northern Egypt during an epidemic that struck the nation in 2022. RNA was extracted from the epithelial specimens, vesicular fluid from affected cattle. The samples were screened using real-time reverse-transcription polymerase chain reaction (RT-PCR) targeting the RNA-dependent RNA polymerase (RdRp) gene. Positive samples underwent individual serotype-specific amplification using primers designed for VP1 of O, A, and SAT 2 serotypes. Subsequently, direct sequencing was performed on the positive samples. The real-time RT-PCR detected positive samples from epithelial and vesicular fluid samples, but not in the blood of infected animals. Out of the 16 samples, seven tested positive for FMDV serotype A. Of these seven positive samples, six were categorized as serotype A-African topotype-G-IV, and these positive samples were isolated in BHK-21 cells, yielding an overt cytopathic effect caused by the virus. In conclusion, it is necessary to sustain continuous surveillance of the evolution of circulating FMDV strains to facilitate the assessment and aid in the selection of vaccine strains for the effective control of FMDV in Egypt.
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Affiliation(s)
- Ramy E El-Ansary
- Faculty of Science, Zoology and Entomology Department, Al-Azhar University, Cairo, Egypt
| | - Samy Kasem
- Department of Virology, Faculty of Veterinary Medicine, Kafrelsheikh University, El Geish Street, Kafrelsheikh, Egypt
| | - Mohamed A M El-Tabakh
- Faculty of Science, Zoology and Entomology Department, Al-Azhar University, Cairo, Egypt
| | - Yassien Badr
- Faculty of Veterinary Medicine, Department of Animal Medicine (Infectious Diseases Division), Damanhour University, Damanhour, El-Beheira, Egypt
| | - Ahmed S Abdel-Moneim
- Department of Microbiology, College of Medicine, Taif University, Taif, Saudi Arabia
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Yaser T, Bkear N, Badr Y, Ibrahim EES, Khodeir MH. Investigation of the effect of mutual vaccination with pest des petits ruminants and polyvalent foot and mouth disease vaccines on the immune response of sheep. Open Vet J 2023; 13:1669-1682. [PMID: 38292706 PMCID: PMC10824097 DOI: 10.5455/ovj.2023.v13.i12.16] [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] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 11/27/2023] [Indexed: 02/01/2024] Open
Abstract
Background Pest des petits ruminants (PPRs) and foot and mouth disease (FMD) are two viral infectious diseases affecting sheep dramatically causing great economic losses. Therefore, attention should be directed toward their control, especially through the application of well-designed vaccination schedules with specific potent vaccines. Aim Determination of the possibility of sheep vaccination with PPR and FMD vaccines in a mutual schedule. Methods Different groups of sheep have vaccinated with live attenuated PPR vaccine and inactivated polyvalent FMD vaccine in a mutual manner (one before the other at weekly intervals or simultaneously) followed by monitoring of the induced immunity to both vaccines using serum neutralization test (SNT) and enzyme linked immune sorbent assay (ELISA). Results SNT and ELISA revealed that there was no antagonizing effect of any vaccine on the immune response to the mutual vaccination of sheep to the other where the obtained antibody titers in single vaccinated sheep groups were similar to those in the simultaneous vaccinated group. Conclusion Simultaneous vaccination of sheep with PPR and polyvalent FMD vaccine is of applicable benefit saving time, effort, and stress factors on the animals.
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Affiliation(s)
- Toka Yaser
- Agriculture Research Center (ARC), Veterinary Serum and Vaccine Research Institute (VSVRI), Cairo, Egypt
| | - Nabil Bkear
- Department of Infectious Diseases and Epidemics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Yassien Badr
- Department of Infectious Diseases and Epidemics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Ehab El-Sayed Ibrahim
- Agriculture Research Center (ARC), Veterinary Serum and Vaccine Research Institute (VSVRI), Cairo, Egypt
| | - Mohamed Hassan Khodeir
- Agriculture Research Center (ARC), Veterinary Serum and Vaccine Research Institute (VSVRI), Cairo, Egypt
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Metwally S, Bkear N, Badr Y, Elshafey B, Alhag SK, Al-Shuraym LA, Batiha G, Fakhry B, Hamada R. A Newly Emerging Serotype A Strain in Foot-and-Mouth Disease Virus with Higher Severity and Mortality in Buffalo than in Cattle Calves in North Egypt. Vet Sci 2023; 10:488. [PMID: 37624275 PMCID: PMC10457878 DOI: 10.3390/vetsci10080488] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/20/2023] [Accepted: 07/24/2023] [Indexed: 08/26/2023] Open
Abstract
A severe foot-and-mouth disease (FMD) epidemic struck several Egyptian provinces recently, causing significant losses among animals even in vaccinated farms. This study indicated the existence of the newly emerging foot-and-mouth disease virus (FMDV) and first investigated its effect on the Egyptian water buffalo (Bubalus bubalis) and cattle calves in the Beheira province, north Egypt. Twenty tongue epithelial samples from diseased calves in five infected farms were randomly collected, prepared, and propagated using baby hamster kidney-21 (BHK-21) cells. Whole genomic RNA was extracted from the cells of the third passage. A FMDV genome was detected and serotyped using one-step reverse transcription polymerase chain reactions (RT-PCRs). Nucleotide sequencing of the purified serotype-specific PCR bands was performed, and a maximum likelihood phylogenetic tree based on 600 base pairs of VP1 was constructed. The results identified FMDV, serotype A in all infected samples, whereas the serotypes O and SAT2 were negative. The obtained 20 sequences were identical to each other and similar to the newly reported strain in Egypt that belongs to the Europe-South America (Euro-SA) topotype. The epidemiological and clinical parameters associated with such a strain were fully recorded by veterinarians and analyzed in a single infected farm including 70 cattle and buffalo calves. It caused higher peracute mortalities in buffalo (25.7%; 95% CI: 13-43) than in cattle (8.6%; 95% CI: 2-24) calves. Severe clinical signs such as dullness, hypothermia, bradycardia, and cardiac arrhythmia were common to both except in fatal cases, whereas hyperthermia and respiratory signs were prevalent in cattle calves. In conclusion, we first characterized the newly emerging FMDV in the calves of Beheira as more fatal and severe in buffalo than in cattle calves.
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Affiliation(s)
- Samy Metwally
- Division of Infectious Disease, Department of Animal Medicine, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Egypt; (N.B.); (Y.B.); (B.F.)
- Laboratory of Global Infectious Diseases Control Science, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-Ku, Tokyo 113-8657, Japan
| | - Nabil Bkear
- Division of Infectious Disease, Department of Animal Medicine, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Egypt; (N.B.); (Y.B.); (B.F.)
| | - Yassien Badr
- Division of Infectious Disease, Department of Animal Medicine, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Egypt; (N.B.); (Y.B.); (B.F.)
| | - Besheer Elshafey
- Division of Internal Medicine, Department of Animal Medicine, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Egypt;
| | - Sadeq K. Alhag
- Biology Department, College of Science and Arts, King Khalid University, Muhayl Asser 61913, Saudi Arabia;
| | - Laila A. Al-Shuraym
- Biology Department, Faculty of Science, Princess Nourah Bint Abdulrahman University, Riyadh 11671, Saudi Arabia;
| | - Gaber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Egypt;
| | - Bassant Fakhry
- Division of Infectious Disease, Department of Animal Medicine, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Egypt; (N.B.); (Y.B.); (B.F.)
| | - Rania Hamada
- Division of Clinical Pathology, Department of Pathology, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Egypt
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Metwally S, Bkear N, Samir M, Hamada R, Elshafey B, Batiha G, Almanaa TN, Sobhy K, Badr Y. The First Serological Detection and Risk Factors Analysis of Akabane Virus in Egyptian Cattle. Animals (Basel) 2023; 13:1849. [PMID: 37889776 PMCID: PMC10252070 DOI: 10.3390/ani13111849] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/26/2023] [Accepted: 05/31/2023] [Indexed: 10/29/2023] Open
Abstract
Akabane virus (AKAV) is an insect-borne virus belonging to the genus Orthobunyavirus of the family Peribunyaviridae. It is the etiologic agent of Akabane disease (AD), which emerged in Asia, Australia, and the Middle East causing severe economic losses among domestic and wild animals. AKAV has not received enough attention in Egypt, and its evidence among Egyptian animals has never been reported. Therefore, this study used ELISA assay to investigate the seroprevalence of AKAV among Egyptian dairy and beef cattle in eight localities of Beheira province, north Egypt. Out of 368 investigated plasma samples, the overall AKAV seroprevalence was 54.3% (95% CI: 50.8-61.4). AKAV antibodies were detected in all examined cattle farms (7/7) and the majority of abattoirs (8/9). Age, sex, breed, and location of the tested cattle were analyzed as risk factors for AKAV infection. A higher significant increase in seropositivity was obtained in cattle who were aged >5 years (p < 0.0001; OR = 9.4), females (p < 0.0001, OR = 8.3), or Holstein breed (p < 0.0001, OR = 22.6) than in younger ages, males, and Mixed and Colombian zebu breeds, respectively. Moreover, a significant variation in AKAV seroprevalence between the tested locations was noticed. Ultimately, a multivariable analysis concluded that age (p = 0.002, OR = 3.32, 95% CI = 1.57-7.04) and breed (p = 0.03, OR = 1.69, 95% CI = 1.05-2.72) were significant risks for AKAV infection. In conclusion, this study is the first to detect AKAV infection in Egyptian animals.
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Affiliation(s)
- Samy Metwally
- Division of Infectious Diseases, Department of Animal Medicine, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Egypt;
- Laboratory of Global Infectious Diseases Control Science, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-Ku, Tokyo 113-8657, Japan
| | - Nabil Bkear
- Division of Infectious Diseases, Department of Animal Medicine, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Egypt;
| | - Marwa Samir
- Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Egypt;
| | - Rania Hamada
- Division of Clinical Pathology, Department of Pathology, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Egypt;
| | - Besheer Elshafey
- Division of Internal Medicine, Department of Animal Medicine, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Egypt;
| | - Gaber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Egypt;
| | - Taghreed N. Almanaa
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Kamel Sobhy
- Department of Theriogenology, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Egypt;
| | - Yassien Badr
- Division of Infectious Diseases, Department of Animal Medicine, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Egypt;
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Saleh A, Badr Y, Abasc O, Aamerd W, Inoshimab Y, Rahmanb M, Mokhlisf H, Abdullazizc I. Clinical, Hematological, and Biochemical Alterations Associated With Early and Late Infection of Lumpy Skin Disease in Cattle in Egypt. AJVS 2023. [DOI: 10.5455/ajvs.104181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
This study aimed to investigate clinical, hematological, and biochemical alterations associated with early (during the first week.) and late (after one month) of lumpy skin disease (LSD) infection in cattle infected during an outbreak of LSD in Egypt. Animals which were clinically examined directly after the clinical onset of LSD showed, firm elevated skin nodules that were distributed all over the body, fever (more than 40℃) associated with anorexia, general weakness, reduced milk yield, enlargement of superficial lymph nodes, and edema in the brisket and/or limbs. Examination of the affected animals one month after the disease onset revealed marked weight loss, shrunk of skin nodules and formation of sit fast. There were significant increases in body temperature, pulse and respiratory rate in all animals infected with LSD with significant decrease of ruminal movement compared to control group. DNA extracted from skin samples collected from LSD infected animals showed bands at the expected size (172 base pairs) by partial amplification of viral attachment protein using PCR. Reduced RBCS count, Hb content, HCT, and MCHC values with a significant increase in MCV in all LSD infected cows compared to the control group, while leukogram analysis revealed leucopenia and lymphopenia during the 1st week. Post-infection, however, one month post-infection revealed granulocytic leukocytosis. In addition, all LSD infected cows showed inflammatory thrombocytopenia. Animals during early LSD infection showed significant reduction in total protein, albumin, glucose and TAC and significant increase in ALT, AST, ALP, LDH, CPK, C-troponin-1, total and direct bilirubin, creatinine, K and MDA levels compared to the control group. While animals during late infection showed significant decrease in glucose, ALT, AST, LDH, CPK, C-troponin-1, direct bilirubin, K and MDA levels and significant increase in total protein, albumin and TAC compared to the early infection group. It can be concluded that, LSD infection in cattle revealed critical alterations in some hematological and serum biochemical parameters during both early and late stages of infection with negative impact on different organ functions including skin, muscle, liver, kidney and heart.
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Fukushi N, Badr Y, Fukushi H. The N-terminal glycine of EHV-1 UL11 is essential for the localization of UL11 and EHV-1 replication in cultured cells. J Gen Virol 2023; 104. [PMID: 36748631 DOI: 10.1099/jgv.0.001798] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Equine herpesvirus type 1 (EHV-1) UL11 is a 74-amino-acid (aa) protein encoded by ORF51. UL11 is modified by acylation including myristoylation and palmitoylation. Myristoylation of EHV-1 UL11 is assumed to occur on the N-terminal glycine, while palmitoylation is assumed to occur on the seventh and ninth cysteines. ORF51, which encodes the first 24 aa, overlaps ORF50 encoding UL12. We previously demonstrated that UL11 was essential for EHV-1 replication in cultured cells and that UL11 was localized at the Golgi apparatus where herpesviruses obtain their final envelope. It is unclear whether the acylation is related to the localization of EHV-1 UL11 and viral replication. In this study, we investigated the role of UL11 acylation in the intracellular localization and viral growth and replication of EHV-1. We constructed seven UL11 acylation mutant plasmids and seven UL11 acylation mutant BAC DNAs; then, we analysed the localizations of the mutant UL11s and attempted virus rescue. We found that both the N-terminal glycine and the seventh or ninth cysteine, especially N-terminal glycine, were involved in the localization of UL11 and viral replication. Taken together, these results suggest that EHV-1 viral growth requires that UL11 is modified by myristoylation of an N-terminal glycine and by palmitoylation of at least one of the cysteines, and that UL11 is localized at the Golgi apparatus. This study shows that a single amino acid in EHV-1 can determine the fate of viral replication.
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Affiliation(s)
- Noriko Fukushi
- Department of Applied Veterinary Sciences, United Graduated School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Yassien Badr
- Department of Applied Veterinary Sciences, United Graduated School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.,Department of Animal Medicine (Branch of Infectious Disease), Faculty of Veterinary Medicine, Damanhour University, El-Beheira 2251, Egypt
| | - Hideto Fukushi
- Department of Applied Veterinary Sciences, United Graduated School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.,Laboratory of Veterinary Microbiology, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.,Joint Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
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7
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Bazid AH, Wasfy M, Fawzy M, Nayel M, Abdelmegeid M, Thabet RY, Yong HS, El-Sayed MM, Magouz A, Badr Y. Emergency vaccination of cattle against lumpy skin disease: Evaluation of safety, efficacy, and potency of MEVAC ® LSD vaccine containing Neethling strain. Vet Res Commun 2022; 47:767-777. [PMID: 36460903 PMCID: PMC9734455 DOI: 10.1007/s11259-022-10037-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 11/08/2022] [Indexed: 12/04/2022]
Abstract
Lumpy skin disease (LSD) is an emerging disease of cattle causing significantly high economic losses. Control of LSD depends on the use of homologous attenuated LSD virus strains isolated originally from South Africa (the Neethling strain). The virus belongs to the genus Capripoxvirus, which includes sheep pox virus and goat pox virus. The present study was conducted to evaluate the safety and efficacy of a new live attenuated LSD vaccine produced by Middle East for Vaccines (MEVAC®) based on the Neethling strain. Tests were performed both in Egypt and Vietnam. Safety was evaluated by inoculation of five cattle with 10 times the recommended dose and observation of the animals for 14 days. Immunogenicity was tested at different periods post-vaccination (PV) in animals receiving the recommended doses of the vaccine using ELISA and virus neutralization test. Five cows were used to determine the protection index (PI) and non-vaccinated control cattle were included. Three calves were challenged by intradermal inoculation of the wild virus (5 × 105 TCID50) 28 days PV. Field or mass vaccination experiments were conducted in Vietnam during national campaigns in the summer of 2021 with 4301 vaccinated animals closely monitored after vaccination. In the field, around 2% (80/4301) of the animals showed hyper-reactivity, and 0.6% (24/4301) showed small skin swellings that disappeared within few hours PV. Abortion was recorded in three animals (0.3% 3/867). Challenged animals were resistant to clinical disease and PI value was 3.5 log10. Meanwhile, antibody levels determined by the ELISA were inconsistent among animals and laboratories during the study period. Overall, the findings point to a new safe and effective LSD vaccine.
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Affiliation(s)
- Abdel-Hamid Bazid
- Department of Virology, Faculty of Veterinary Medicine, University of Sadat City, 32958 Menoufiya, Egypt
| | - Momtaz Wasfy
- Middle East for Vaccines (MEVAC®), 44813 Sharquia, Egypt
| | - Mohamed Fawzy
- Department of Virology, Faculty of Veterinary Medicine, Suez Canal University, 41522 Ismailia, Egypt
| | - Mohamed Nayel
- Department of Medicine and Infectious Diseases, Faculty of Veterinary Medicine, University of Sadat City, Menoufiya, Egypt
| | - Mohamed Abdelmegeid
- Department of Animal Medicine, Faculty of Veterinary Medicine, Kafrelsheikh, University, Kafr El Sheikh, Egypt
| | | | - Hui Sian Yong
- Senior Regional Business Manager, Asia Kemin Biologics®, 12 Senoko Drive, 758200 Singapore, Singapore
| | | | - Asmaa Magouz
- Department of Virology, Faculty of Veterinary Medicine, Kafrelsheikh University, 33516 Kafrelsheikh, Egypt
| | - Yassien Badr
- Department of Animal Medicine (Branch of Infectious Diseases), Faculty of Veterinary Medicine, Damanhour University, 22511 El‑Beheira, Egypt
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Badr Y, Noreldin AE, Elewa YHA, Ahmed MS, Inoshima Y, Baker NM, Aamer WN, Abas OM, Nayel M, Rahman MM, Elgendy E, Saleh AG, El-Neweshy MS. Cellular infiltration, cytokines, and histopathology of skin lesions associated with different clinical forms and stages of naturally occurring lumpy skin disease in cattle. Comp Immunol Microbiol Infect Dis 2022; 90-91:101894. [PMID: 36270050 DOI: 10.1016/j.cimid.2022.101894] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/24/2022] [Accepted: 10/05/2022] [Indexed: 12/24/2022]
Abstract
Lumpy skin disease (LSD) caused by the Capripoxvirus LSD virus which infects cattle, leading to a serious disease characterized by fever and the eruption of skin nodules all over the surface of the body. Our understanding of the pathogenesis of this disease is still incomplete, particularly the immunopathological alterations occurring in the skin nodules of infected animals. Therefore, we collected skin nodules from naturally infected cattle with different forms of the disease, both in the early stage of clinical infection and after disease progression. The skin samples were examined both histopathologically and immunohistochemically using a variety of antibodies targeting immune cellular markers and cytokines. As a result, the dermatohistopathology revealed orthokeratotic hyperkeratosis, vasculitis, epidermal microvesicles, and cellules claveleuses of Borrel in the early stage of infection, with the severity of the lesions correlating with the severity of the clinical disease. Meanwhile, late-stage samples had epidermal hyperkeratosis as well as dermal lymphocytic and histiocytic infiltrations. The predominant cellular infiltrates in the cutaneous lesions of early-stage LSD samples were interferon (IFN)-γ+ cells and CD4+ T lymphocytes with few macrophage lineage cells. However, in the late-stage samples, numerous Iba-1+ macrophages, with few IFN-γ+ cells and CD4+ T lymphocytes, were detected. Our findings indicate that IFN-γ+ cells, CD4+ T lymphocytes, and macrophages play a key role in the immunity against natural LSD virus infection and imply that cutaneous vasculopathy associated with LSD virus infection is an immune-mediated lesion. The current study contributes to our understanding of the pathogenesis of LSD.
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Affiliation(s)
- Yassien Badr
- Department of Animal Medicine, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, El-Beheira, Egypt; Laboratory of Food and Environmental Hygiene, Cooperative Department of Veterinary Medicine, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan.
| | - Ahmed E Noreldin
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, Egypt
| | - Yaser Hosny Ali Elewa
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Mohamed S Ahmed
- Department of Pathology, Faculty of Veterinary Medicine, Kafrelsheikh University, 33516 Kafrelsheikh, Egypt
| | - Yasuo Inoshima
- Laboratory of Food and Environmental Hygiene, Cooperative Department of Veterinary Medicine, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan; Education and Research Center for Food Animal Health, Gifu University (GeFAH), 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
| | - Nabil M Baker
- Department of Animal Medicine, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, El-Beheira, Egypt
| | - Waleed Nabih Aamer
- Agricultural Research Center, Animal Health research Institute, Damanhour, El-Beheira, Egypt
| | - Osama M Abas
- Department of Animal Medicine, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - Mohamed Nayel
- Department of Animal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, University of Sadat City, Sadat City, Menoufia, Egypt
| | - Md Matiur Rahman
- Laboratory of Food and Environmental Hygiene, Cooperative Department of Veterinary Medicine, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan; Department of Medicine, Faculty of Veterinary, Animal and Biomedical Sciences, Sylhet Agricultural University, Sylhet 3100, Bangladesh
| | - Emad Elgendy
- Department of Microbiology, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, El-Beheira, Egypt
| | - Asmaa G Saleh
- Department of Animal Medicine, Faculty of Veterinary Medicine, Damanhour University, Damanhour 22511, El-Beheira, Egypt
| | - Mahmoud S El-Neweshy
- Department of Pathology, Faculty of Veterinary Medicine, Kafrelsheikh University, 33516 Kafrelsheikh, Egypt.
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El-Bashar R, Hussein M, Hegazy SF, Badr Y, Farhat O Hameed M, Obayya SSA. Analysis of highly efficient quad-crescent-shaped Si nanowires solar cell. Opt Express 2021; 29:13641-13656. [PMID: 33985095 DOI: 10.1364/oe.417652] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 02/18/2021] [Indexed: 06/12/2023]
Abstract
Nanostructured semiconductor nanowires (NWs) present a smart solution for broadband absorption solar cells (SCs) with high efficiency and low-cost. In this paper, a novel design of quad crescent-shaped silicon NW SC is introduced and numerically studied. The suggested NW has quad crescent shapes which create a cavity between any adjacent NWs. Such a cavity will permit multiple light scattering with improved absorption. Additionally, new modes will be excited along the NWs, which are highly coupled with the incident light. Further, the surface reflection from the crescent NWs is decreased due to the reduced surface filling ratio. The finite difference time domain method is utilized to analyze the optical characteristics of the reported structure. The proposed NW offers short circuit current density (Jsc) of 27.8 mA/cm2 and ultimate efficiency (ηul) of 34% with an enhancement of 14% and volume reduction of 40% compared to the conventional NWs. The Jsc and ηul are improved to 35.8 mA/cm2 and 43.7% by adding a Si substrate and back reflector to the suggested crescent NWs.
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Rahman MM, Badr Y, Kamatari YO, Kitamura Y, Shimizu K, Okada A, Inoshima Y. Data on proteomic analysis of milk extracellular vesicles from bovine leukemia virus-infected cattle. Data Brief 2020; 33:106510. [PMID: 33294510 PMCID: PMC7689038 DOI: 10.1016/j.dib.2020.106510] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 11/01/2020] [Accepted: 11/03/2020] [Indexed: 01/09/2023] Open
Abstract
Milk extracellular vesicles (EVs) are nanoparticles that contain proteins, mRNAs, microRNAs, DNAs, and lipids that involved in several biological functions. Milk EVs provide proteins that could represent relevant novel biomarkers for monitoring of different diseases such as breast cancer and mastitis in humans and animals, respectively. Bovine leukemia virus (BLV) is an oncogenic virus that causes progressive B-cell lymphosarcoma in cattle. Here, we aimed to identify proteins in milk EVs from BLV-infected cattle compared with those from uninfcetd cattle. Proteomic analysis was performed by using a comprehensive nano liquid chromatography-tandem mass spectrometry (nanoLC-MS/MS) approach. Identified proteins were analyzed by using a proteomic software, Scaffold-Data Independent Acquisition (Scaffold-DIA).
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Affiliation(s)
- Md. Matiur Rahman
- The United Graduate School of Veterinary Sciences, Gifu University, Japan
- Laboratory of Food and Environmental Hygiene, Cooperative Department of Veterinary Medicine, Gifu University, Japan
- Department of Medicine, Faculty of Veterinary, Animal, and Biomedical Sciences, Sylhet Agricultural University, Sylhet, Bangladesh
| | - Yassien Badr
- Laboratory of Food and Environmental Hygiene, Cooperative Department of Veterinary Medicine, Gifu University, Japan
- Department of Animal Medicine, Faculty of Veterinary Medicine, Damanhour University, El-Beheira, Egypt
| | - Yuji O. Kamatari
- Division of Instrumental Analysis, Life Science Research Center, Gifu University, Japan
| | - Yuko Kitamura
- Gifu Prefectural Chuo Livestock Hygiene Service Center, Japan
| | - Kaori Shimizu
- Laboratory of Food and Environmental Hygiene, Cooperative Department of Veterinary Medicine, Gifu University, Japan
| | - Ayaka Okada
- Laboratory of Food and Environmental Hygiene, Cooperative Department of Veterinary Medicine, Gifu University, Japan
- Joint Graduate School of Veterinary Sciences, Gifu University, Japan
| | - Yasuo Inoshima
- The United Graduate School of Veterinary Sciences, Gifu University, Japan
- Laboratory of Food and Environmental Hygiene, Cooperative Department of Veterinary Medicine, Gifu University, Japan
- Education and Research Center for Food Animal Health, Gifu University (GeFAH), Japan
- Joint Graduate School of Veterinary Sciences, Gifu University, Japan
- Corresponding author at: Gifu University, Japan
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Shimizu K, Badr Y, Okada A, Inoshima Y. Bovine papular stomatitis virus and pseudocowpox virus coinfection in dairy calves in Japan. Arch Virol 2020; 165:2659-2664. [PMID: 32880730 DOI: 10.1007/s00705-020-04792-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 07/30/2020] [Indexed: 10/23/2022]
Abstract
Two cases of coinfection with bovine papular stomatitis virus (BPSV) and pseudocowpox virus (PCPV) in dairy calves in Tochigi Prefecture, Japan, are reported. Sequences of BPSV and PCPV were simultaneously detected in the same polymerase chain reaction (PCR) amplicons, which were obtained from the DNA of two dairy calves using a pan-parapoxvirus primer set. PCR amplification using BPSV- and PCPV-specific primer sets were able to distinguish between the two viruses in coinfected clinical samples. Based on these data, further studies on the occurrence BPSV/PCPV coinfections in cattle in Japan are warranted.
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Affiliation(s)
- Kaori Shimizu
- Laboratory of Food and Environmental Hygiene, Cooperative Department of Veterinary Medicine, Gifu University, Gifu, Japan
| | - Yassien Badr
- Laboratory of Food and Environmental Hygiene, Cooperative Department of Veterinary Medicine, Gifu University, Gifu, Japan.,Department of Animal Medicine (Infectious Diseases), Faculty of Veterinary Medicine, Damanhour University, El-Beheira, Egypt
| | - Ayaka Okada
- Laboratory of Food and Environmental Hygiene, Cooperative Department of Veterinary Medicine, Gifu University, Gifu, Japan.,Education and Research Center for Food Animal Health, Gifu University (GeFAH), Gifu, Japan
| | - Yasuo Inoshima
- Laboratory of Food and Environmental Hygiene, Cooperative Department of Veterinary Medicine, Gifu University, Gifu, Japan. .,Education and Research Center for Food Animal Health, Gifu University (GeFAH), Gifu, Japan. .,The United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan. .,Joint Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan.
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Kawasaki H, Murakami T, Badr Y, Kamiya S, Shimizu K, Okada A, Inoshima Y. In vitro and ex vivo expression of serum amyloid A3 in mouse lung epithelia. Exp Lung Res 2020; 46:352-361. [PMID: 32842790 DOI: 10.1080/01902148.2020.1809750] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND AND PURPOSE Serum amyloid A (SAA), an acute-phase protein whose level tracks infection and inflammation, is the precursor protein of amyloid A (AA) fibrils that is thought to cause AA amyloidosis in human and animals. SAA protein has several isoforms based on the difference of amino acid sequence, such as SAA1 to SAA4 in mice. AA fibrils are associated with chronic inflammation and are mainly originated from SAA1 produced in the liver. SAA3 reportedly contributes to the innate immune response in epithelia; however, little is known about its role at the lung epithelia. Therefore, we investigated SAA3 expression in the lung epithelium activated by bacterial antigens. MATERIALS AND METHODS The expressions of SAA3 and SAA1 mRNA were investigated using quantitative real-time PCR, in vitro using mouse Clara (Club) cells and ex vivo using surgically removed mouse lungs, after their stimulation by using either lipopolysaccharide (LPS), the major outer membranous antigen of gram-negative bacteria, or lipoteichoic acid (LTA), the major outer membranous antigen of gram-positive bacteria. In addition, SAA3 and SAA1/2 proteins in treated lung samples were detected by immunohistochemistry (IHC). RESULTS SAA3 mRNA expression increased in cells and lungs treated with either LPS or LTA. SAA3 mRNA was more sensitively expressed in LPS than LTA treatment. In contrast, SAA1 mRNA expression did not increase by either LPS or LTA treatment. Furthermore, SAA3 mRNA expression increased in a dose-dependent manner in cells treated with tumor necrosis factor-alpha. By IHC, SAA3 protein was highly expressed in the luminal side of the bronchial epithelium, while SAA1/2 was not expressed. CONCLUSION These results obtained from in vitro and ex vivo experiments suggest that SAA3 plays an important role in the innate immune response to bacterial infection in the lung epithelia.
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Affiliation(s)
- Haruka Kawasaki
- Laboratory of Food and Environmental Hygiene, Faculty of Applied Biological Sciences, Cooperative Department of Veterinary Medicine, Gifu University, Gifu, Japan
| | - Tomoaki Murakami
- Laboratory of Veterinary Toxicology, Cooperative Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Yassien Badr
- Laboratory of Food and Environmental Hygiene, Faculty of Applied Biological Sciences, Cooperative Department of Veterinary Medicine, Gifu University, Gifu, Japan.,Faculty of Veterinary Medicine, Department of Animal Medicine (Infectious Diseases), Damanhour University, El-Beheira, Egypt
| | - Sato Kamiya
- Laboratory of Food and Environmental Hygiene, Faculty of Applied Biological Sciences, Cooperative Department of Veterinary Medicine, Gifu University, Gifu, Japan
| | - Kaori Shimizu
- Laboratory of Food and Environmental Hygiene, Faculty of Applied Biological Sciences, Cooperative Department of Veterinary Medicine, Gifu University, Gifu, Japan
| | - Ayaka Okada
- Laboratory of Food and Environmental Hygiene, Faculty of Applied Biological Sciences, Cooperative Department of Veterinary Medicine, Gifu University, Gifu, Japan.,Education and Research Center for Food Animal Health, Gifu University (GeFAH), Gifu, Japan
| | - Yasuo Inoshima
- Laboratory of Food and Environmental Hygiene, Faculty of Applied Biological Sciences, Cooperative Department of Veterinary Medicine, Gifu University, Gifu, Japan.,Education and Research Center for Food Animal Health, Gifu University (GeFAH), Gifu, Japan.,Joint Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan.,The United Graduate School of Veterinary Sciences, Gifu University, Gifu, Japan
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13
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Abas OM, Anwar S, Badr Y, Abd-Ellatieff H, Saleh AG, Nayel M, Rahman AAE, Fukushi H, Yanai T. Comparative Neuropathogenesis of Equine Herpesvirus 9 and its Mutant Clone (SP21) Inoculated Intranasally in a Hamster Model. J Comp Pathol 2019; 170:91-100. [PMID: 31375165 DOI: 10.1016/j.jcpa.2019.06.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 06/03/2019] [Accepted: 06/08/2019] [Indexed: 11/27/2022]
Abstract
The neuropathogenesis of equine herpesvirus 9 (EHV-9), a neurotropic herpesvirus, and its mutant clone (SP21) was studied experimentally in a hamster model. EHV-9-infected hamsters showed clinical signs of infection at 3 days post infection (dpi), while infection with SP21 resulted in clinical signs at 4 dpi. Clinical signs were more severe in the EHV-9-infected group than in the SP21-infected group. There was a significant difference in the time of anterograde transmission of EHV-9 and SP21 inside the brain. Viraemia was detected in the EHV-9-infected group at 4-5 dpi, while no viraemia was detected in the SP21-infected group. The serum concentration of tumour necrosis factor-α was significantly higher in EHV-9-infected animals than in those infected by SP21 group at 4-5 dpi, but there was no difference in the serum concentration of interferon-γ. The spatiotemporal profiles of viral replication and virus-associated histopathology were remarkably similar, were high in the olfactory bulb and cerebral hemispheres, and decreased progressively towards the medulla oblongata. The mean group scores of the histopathological changes for the entire brain were significantly higher in the EHV-9 group than in the SP21 group at all time points, starting from 3 dpi. These results suggest that the gene products of the open reading frame (ORF)19 and ORF14 play essential roles in the neuropathogenesis of EHV-9, as the two point-mutations detected in SP21 significantly altered the neuropathogenesis of the virus.
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Affiliation(s)
- O M Abas
- Laboratory of Veterinary Microbiology, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, Japan; Department of Animal Medicine, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - Sh Anwar
- Department of Pathology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, Egypt; Neuroscience Laboratory, CHU Research Center, Faculty of Medicine, Laval University, Quebec City, Canada
| | - Y Badr
- Laboratory of Veterinary Microbiology, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, Japan; Department of Animal Medicine, Faculty of Veterinary Medicine, Damanhour University, El-Beheira, Egypt
| | - H Abd-Ellatieff
- Laboratory of Veterinary Pathology, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, Japan; Department of Pathology and Parasitology, Faculty of Veterinary Medicine, Damanhour University, El-Beheira
| | - A G Saleh
- Laboratory of Veterinary Pathology, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, Japan; Department of Animal Medicine, Faculty of Veterinary Medicine, Damanhour University, El-Beheira, Egypt
| | - M Nayel
- Department of Animal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, University of Sadat City, Sadat City, Menoufia, Egypt
| | - A Abd-El Rahman
- Department of Animal Medicine, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - H Fukushi
- Laboratory of Veterinary Microbiology, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, Japan
| | - T Yanai
- Laboratory of Veterinary Pathology, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, Japan.
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Abdelaziem A, El-Khatib KM, Hafez MA, Badr Y. Effect of annealing on La 0.8Sr 0.2MnO 3 thin films prepared by pulsed laser deposition. Spectrochim Acta A Mol Biomol Spectrosc 2019; 211:100-107. [PMID: 30529811 DOI: 10.1016/j.saa.2018.11.060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 11/21/2018] [Accepted: 11/27/2018] [Indexed: 06/09/2023]
Abstract
La 0.8 Sr0.2MnO3 (LSM) polycrystalline powder was synthesized using hydrothermal method at 900 °C. High Resolution Transmission Electron Microscope (HR-TEM) showed that the particles were uniform with average particle size of 657 nm. X-ray Diffraction (XRD) and lattice fringes indicated rhombohedral structure of LSM particles. Thin LSM films were successfully grown on cleaned Si (100) substrate by pulsed laser deposition (PLD). Annealing of LSM films in air affected structure, morphology and electrical properties that films where crystallization of the LSM films was started at 600 °C and enhanced by further annealing as indicated by XRD. Field Emission Scanning Electron Microscope (FESEM) revealed that the grain size increases by increasing annealing temperature and at temperature of 1000 °C cracks were seen. Average roughness and root mean square roughness decreased with further annealing (up to 800 °C) then increased at 1000 °C that were verified by atomic force microscope (AFM). Moreover, Raman scattering was enhanced and all major bands were revealed at 800 °C. Resistivity of LSM films decreases with increasing temperature (from 25 °C to 200 °C) and all films underwent a semiconductor behavior in the most of applied temperatures. The lowest resistivity of LSM films was reached at annealing temperature of 800 °C with low activation energy value (Ea) of about 0.1 eV.
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Affiliation(s)
- Ali Abdelaziem
- Department of Laser Sciences and Interaction, National Institute of Laser Enhanced Sciences (NILES), Cairo University, Giza, Egypt, 12613.
| | - K M El-Khatib
- Chemical Engineering & Pilot Plant Department, Engineering Division, National Research Center, Dokki, Giza 12113, Egypt
| | - M A Hafez
- Department of Laser Sciences and Interaction, National Institute of Laser Enhanced Sciences (NILES), Cairo University, Giza, Egypt, 12613
| | - Y Badr
- Department of Laser Sciences and Interaction, National Institute of Laser Enhanced Sciences (NILES), Cairo University, Giza, Egypt, 12613
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15
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ahmed A, Badr Y, Shouman S, Sliem M. Improvement of 6 Mercaptopurine Efficiency by Encapsulated in Chitosan Nanoparticles. Arab Journal of Nuclear Sciences and Applications 2018. [DOI: 10.21608/ajnsa.1801.1040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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ahmed A, Badr Y, Shouman S, Sliem M. Green Synthesis of Spherical Gold Nanoparticles by Chitosan for 6 Mercaptopurine Delivery. Arab Journal of Nuclear Sciences and Applications 2018. [DOI: 10.21608/ajnsa.1801.1039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Okada A, Suganuma S, Badr Y, Omatsu T, Mizutani T, Ohya K, Fukushi H. Decreased expression of the immediate early protein, ICP4, by deletion of the tegument protein VP22 of equine herpesvirus type 1. J Vet Med Sci 2017; 80:311-315. [PMID: 29279464 PMCID: PMC5836769 DOI: 10.1292/jvms.17-0380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
VP22 is a major tegument protein of equine herpesvirus type 1 (EHV-1). In the present
study, we examined functions of VP22 in EHV-1 replication by viral protein expression
analyses in cells infected with the VP22-deficient virus. The expressions of several viral
proteins in the cells infected with the VP22-deficient virus were lower than those in the
cells infected with the parent virus. One of the weakly expressed proteins was identified
as ICP4, which is a major regulatory protein encoded by an immediate early gene of EHV-1.
A real-time PCR analysis showed that the mRNA expression of ICP4 was the same in cells
infected with the parent and VP22-deficient viruses. Hence, VP22 appears to promote
synthesis of ICP4 post-transcriptionally.
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Affiliation(s)
- Ayaka Okada
- Department of Applied Veterinary Sciences, United Graduated School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Shota Suganuma
- Laboratory of Veterinary Microbiology, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Yassien Badr
- Department of Applied Veterinary Sciences, United Graduated School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.,Department of Animal Medicine, Faculty of Veterinary Medicine, Damanhour University, El-Beheira, Egypt
| | - Tsutomu Omatsu
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo 183-8509, Japan
| | - Tetsuya Mizutani
- Research and Education Center for Prevention of Global Infectious Diseases of Animals, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu-shi, Tokyo 183-8509, Japan
| | - Kenji Ohya
- Department of Applied Veterinary Sciences, United Graduated School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.,Laboratory of Veterinary Microbiology, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Hideto Fukushi
- Department of Applied Veterinary Sciences, United Graduated School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan.,Laboratory of Veterinary Microbiology, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
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Badr Y, Okada A, Abo-Sakaya R, Beshir E, Ohya K, Fukushi H. Equine herpesvirus type 1 ORF51 encoding UL11 as an essential gene for replication in cultured cells. Arch Virol 2017; 163:599-607. [DOI: 10.1007/s00705-017-3650-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 11/03/2017] [Indexed: 10/18/2022]
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Abdelsalam E, Samer M, Abdel-Hadi MA, Hassan HE, Badr Y. EFFECT OF CoCl2, NiCl2 AND FeCl3 ADDITIVES ON BIOGAS AND METHANE PRODUCTION. ACTA ACUST UNITED AC 2015. [DOI: 10.21608/mjae.2015.98656] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Badr Y, Abd El-Wahed MG, Mahmoud MA. Photocatalytic degradation of methyl red dye by silica nanoparticles. J Hazard Mater 2008; 154:245-53. [PMID: 18055110 DOI: 10.1016/j.jhazmat.2007.10.020] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2006] [Revised: 10/09/2007] [Accepted: 10/10/2007] [Indexed: 05/24/2023]
Abstract
Silica nanoparticles (SiO2 NPs) were found to be photocatalytically active for degradation of methyl red dye (MR). The SiO2 NPs and SiO2 NPs doped with silver (and or) gold nanoparticles were prepared. From the transmission electron microscopy (TEM) images the particle size and particle morphology of catalysts were monitored. Moreover, SiO2 NPs doped with silver and gold ions were used as a photocatalyst for degradation of MR. The rate of photocatalytic degradation of MR was found to be increased in the order of SiO2 NPs, SiO2 NPs coated with gold nanoparticles (Au NPs) and silver nanoparticles (Ag NPs), SiO2 NPs coated with Ag NPs, SiO2 NPs coated with Au NPs, Ag+-doped SiO2 NPs, and Au3+-doped SiO2 NPs. The kinetic and mechanism of photocatalytic reaction were studied and accorded well with experimental results.
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Affiliation(s)
- Y Badr
- National Institute of Laser Enhanced Science, Cairo University, Cairo, Egypt
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Husseiny MI, El-Aziz MA, Badr Y, Mahmoud MA. Biosynthesis of gold nanoparticles using Pseudomonas aeruginosa. Spectrochim Acta A Mol Biomol Spectrosc 2007; 67:1003-6. [PMID: 17084659 DOI: 10.1016/j.saa.2006.09.028] [Citation(s) in RCA: 199] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2006] [Accepted: 09/18/2006] [Indexed: 05/12/2023]
Abstract
Pseudomonas aeruginosa were used for extra-cellular biosynthesis of gold nanoparticles (Au NPs). Consequently, Au NPs were formed due to reduction of gold ion by bacterial cell supernatant of P. aeruginosa ATCC 90271, P. aeruginosa (2) and P. aeruginosa (1). The UV-vis and fluorescence spectra of the bacterial as well as chemical prepared Au NPs were recorded. Transmission electron microscopy (TEM) micrograph showed the formation of well-dispersed gold nanoparticles in the range of 15-30 nm. The process of reduction being extra-cellular and may lead to the development of an easy bioprocess for synthesis of Au NPs.
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Affiliation(s)
- M I Husseiny
- Department of Microbiology and Immunology, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
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Abd El-Aziz M, Badr Y, Mahmoud MA. Biosynthesis of Gold Nanoparticles Using Pseudomonas Aeruginosa. AIP Conference Proceedings 2007. [DOI: 10.1063/1.2711108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Badr Y, Mahmoud MA. Effect of PVA surrounding medium on ZnSe nanoparticles: size, optical, and electrical properties. Spectrochim Acta A Mol Biomol Spectrosc 2006; 65:584-90. [PMID: 16503414 DOI: 10.1016/j.saa.2005.12.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2005] [Accepted: 12/09/2005] [Indexed: 05/06/2023]
Abstract
Polyvinyl alcohol (PVA) matrix was used to confine the particle size of ZnSe nanocrystallites as well as the variation of zinc (Zn) to selenium (Se) ion ratio which showed a remarkable decrease on the particle size as this ratio increased. The particle size decrease was monitored from the UV-vis absorption measurement as well as photoluminescence which suffered a blue shift with particle size decrease. The particle size was characterized with the aid of X-ray diffraction (XRD). The Raman spectra showed that, as the particle size increases, the peak position of the line centers (LO) mode were found to be red shifted from 239 to 234 cm(-1), accompanied by an increase in the full-width at half-maximum (FWHM). The electrical measurements and FT-IR spectra (overtone and normal) band vibration were used to study the effect of ZnSe NPs size on the PVA matrix.
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Affiliation(s)
- Y Badr
- National Institute of Laser Enhanced Science, Cairo University, Cairo, Egypt
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Badr Y, Mahmoud MA. Effect of silver nanowires on the surface-enhanced Raman spectra (SERS) of the RNA bases. Spectrochim Acta A Mol Biomol Spectrosc 2006; 63:639-45. [PMID: 16024274 DOI: 10.1016/j.saa.2005.06.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2005] [Accepted: 06/07/2005] [Indexed: 05/03/2023]
Abstract
RNA bases have a great importance in the biological and genetics applications. The surface-enhanced Raman scattering (SERS) was used to study the orientation and adsorption structure of RNA bases adsorbed on the surface of silver nanowires (Ag NWs). The Ag NWs were prepared and its UV-vis spectra were recorded. The RNA bases oriented perpendicularly on the surface of Ag NWs, as the coverage area decreases. Consequently, the in-plane bands were enhanced according to the SERS selection rule. Many bands were red shifted due to the chemisorption of RNA bases on the Ag NWs surface. New bands corresponding to the base-surface bond were appeared in the SERS spectra.
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Affiliation(s)
- Y Badr
- National Institute of Laser Enhanced Science, Cairo University, Cairo, Egypt
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