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Rahman ANA, Mahboub HH, Elshopakey GE, Darwish MIM, Gharib HSAR, Shaalan M, Fahmy EM, Abdel-Ghany HM, Ismail SH, Elsheshtawy HM. Pseudomonas putida infection induces immune-antioxidant, hepato-renal, ethological, and histopathological/immunohistochemical disruptions in Oreochromis niloticus: the palliative role of titanium dioxide nanogel. BMC Vet Res 2024; 20:127. [PMID: 38561720 PMCID: PMC10983678 DOI: 10.1186/s12917-024-03972-6] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 03/13/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Pseudomonas putida is a pathogenic bacterium that induces great losses in fishes, including Nile tilapia (Oreochromis niloticus). Currently, the application of nanomaterials in aquaculture practices has gained more success as it endows promising results in therapies compared to traditional protocols. OBJECTIVE Therefore, the current perspective is considered the first report to assess the anti-bacterial efficacy of titanium dioxide nanogel (TDNG) against Pseudomonas putida (P. putida) in Nile tilapia. METHODS The fish (n = 200; average body weight: 47.50±1.32 g) were allocated into four random groups (control, TDNG, P. putida, and TDNG + P. putida), where 0.9 mg/L of TDNG was applied as bath treatment for ten days. RESULTS Outcomes revealed that P. putida infection caused ethological alterations (surfacing, abnormal movement, and aggression) and depression of immune-antioxidant variables (complement 3, lysozyme activity, total antioxidant capacity, superoxide dismutase, and reduced glutathione content). Additionally, a substantial elevation in hepatorenal biomarkers (aspartate and alanine aminotransferases and creatinine) with clear histopathological changes and immuno-histochemical alterations (very weak BCL-2 and potent caspase-3 immuno-expressions) were seen. Surprisingly, treating P. putida-infected fish with TDNG improved these variables and obvious restoration of the tissue architectures. CONCLUSION Overall, this report encompasses the key role of TDNG as an anti-bacterial agent for controlling P. putida infection and improving the health status of Nile tilapia.
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Affiliation(s)
- Afaf N Abdel Rahman
- Department of Aquatic Animal Medicine, Faculty of Veterinary Medicine, Zagazig University, PO Box 44511, Zagazig, Sharkia, Egypt.
| | - Heba H Mahboub
- Department of Aquatic Animal Medicine, Faculty of Veterinary Medicine, Zagazig University, PO Box 44511, Zagazig, Sharkia, Egypt.
| | - Gehad E Elshopakey
- Department of Clinical Pathology, Faculty of Veterinary Medicine, Mansoura University, PO Box 35516, Mansoura, Dakahlia, Egypt
| | - Mahmoud I M Darwish
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, PO Box 44511, Sharkia, Egypt
| | - Heba Said Abdel-Rahman Gharib
- Department of Behaviour and Management of Animal, Poultry, and Aquatics, Faculty of Veterinary Medicine, Zagazig University, PO Box 44511, Zagazig, Sharkia, Egypt
| | - Mohamed Shaalan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, PO Box 12211, Giza, Egypt.
- Polymer Institute, Slovak academy of sciences, Dúbravská cesta 9, 845 41, Bratislava, Slovakia.
| | - Esraa M Fahmy
- Department of Pharmacology, Faculty of Veterinary Medicine, Zagazig University, PO Box 44511, Zagazig, Sharkia, Egypt
| | - Heba M Abdel-Ghany
- Department of Pathology, Faculty of Veterinary Medicine, Zagazig University, PO Box 44511, Zagazig, Sharkia, Egypt
| | - Sameh H Ismail
- Faculty of Nanotechnology for Postgraduate Studies, Cairo University, Sheikh Zayed Branch Campus, PO Box 12588, Sheikh Zayed City, Giza, Egypt
| | - Hassnaa Mahmoud Elsheshtawy
- Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Suez Canal University, PO Box 41522, Ismailia, Egypt
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Ahmed NHM, Ghallab A, Shaalan M, Saied M, Mohammed ES. First molecular identification and phylogenetic illustration of Sarcocystis species infection in Red Sea shortfin mako shark (Isurus oxyrinchus Rafinesque, 1810). BMC Vet Res 2024; 20:104. [PMID: 38491459 PMCID: PMC10941371 DOI: 10.1186/s12917-024-03952-w] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 02/23/2024] [Indexed: 03/18/2024] Open
Abstract
BACKGROUND members of the genus Sarcocystis are intracellular obligate protozoan parasites classified within the phylum Apicomplexa and have an obligate heteroxenous life cycle involving two hosts. A more comprehensive understanding of the prevalence and geographic range of different Sarcocystis species in marine ecosystems is needed globally and nationally. Hence, the objective of this study was to document the incidence of Sarcocystis infection in sharks within the aquarium ecosystem of Egypt and to identify the species through the characterization of the SSU rDNA gene. METHODS All organs of the mako shark specimen underwent macroscopic screening to detect the existence of a Sarcocystis cyst. Ten cysts were collected from the intestine and processed separately to extract the genomic DNA. The polymerase chain reaction (PCR) was accomplished by amplifying a specific 18S ribosomal RNA (rRNA) gene fragment. Subsequently, the resulting amplicons were subjected to purification and sequencing processes. RESULTS Macroscopic examination of the mako shark intestinal wall sample revealed the presence of Sarcocystis cysts of various sizes and shapes, and sequencing of the amplicons from Sarcocystis DNA revealed a 100% nucleotide identity with the sequence of Sarcocystis tenella recorded from sheep in Iran; The mako shark sequence has been deposited in the GeneBank with the accession number OQ721979. This study presents the first scientific evidence demonstrating the presence of the Sarcocystis parasite in sharks, thereby documenting this specific marine species as a novel intermediate host in the Sarcocystis life cycle. CONCLUSIONS This is the first identification of Sarcocystis infection in sharks, and we anticipate it will be an essential study for future screenings and establishing effective management measures for this disease in aquatic ecosystems.
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Affiliation(s)
- Nahla He M Ahmed
- National Institute of Oceanography and Fisheries, NIOF, Cairo, Egypt.
| | - Ahmed Ghallab
- Natural Conservation Sector, Ministry of Environment, Cairo, Egypt
| | - Mohamed Shaalan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Cairo, Egypt
| | - Mahmoud Saied
- National Institute of Oceanography and Fisheries, NIOF, Cairo, Egypt
| | - Eman Sayed Mohammed
- Department of Parasitology, Faculty of Veterinary Medicine, South Valley University, Qena, 83523, Egypt
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Hassanen EI, Abdelrahman RE, Aboul-Ella H, Ibrahim MA, El-Dek S, Shaalan M. Mechanistic Approach on the Pulmonary Oxido-Inflammatory Stress Induced by Cobalt Ferrite Nanoparticles in Rats. Biol Trace Elem Res 2024; 202:765-777. [PMID: 37191761 PMCID: PMC10764397 DOI: 10.1007/s12011-023-03700-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 05/05/2023] [Indexed: 05/17/2023]
Abstract
Cobalt ferrite nanoparticles (CFN) are employed in data storage, imaging, medication administration, and catalysis due to their superparamagnetic characteristics. The widespread use of CFN led to significantly increased exposure to people and the environment to these nanoparticles. Until now, there is not any published paper describing the adverse effect of repeated oral intake of this nanoformulation on rats' lungs. So, the current research aims to elucidate the pulmonary toxicity prompted by different concentrations of CFN in rats as well as to explore the mechanistic way of such toxicity. We used 28 rats that were divided equally into 4 groups. The control group received normal saline, and the experimental groups received CFN at dosage levels 0.05, 0.5, and 5 mg/kg bwt. Our findings revealed that CFN enhanced dose-dependent oxidative stress manifested by raising in the MDA levels and declining in the GSH content. The histopathological examination revealed interstitial pulmonary inflammation along with bronchial and alveolar damage in both 0.5 and 5 mg CFN given groups. All these lesions were confirmed by the immunohistochemical staining that demonstrated strong iNOS and Cox-2 protein expression. There was also a significant upregulation of TNFα, Cox-2, and IL-1β genes with downregulation of IL-10 and TGF-β genes. Additionally, the group receiving 0.05 mg CFN did not exhibit any considerable toxicity in all measurable parameters. We concluded that the daily oral intake of either 0.5 or 5 mg CFN, but not 0.05 mg, could induce pulmonary toxicity via NPs and/or its leached components (cobalt and iron)-mediated oxido-inflammatory stress. Our findings may help to clarify the mechanisms of pulmonary toxicity generated by these nanoparticles through outlining the standards for risk assessment in rats as a human model.
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Affiliation(s)
- Eman I Hassanen
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, P.O. Box 12211, Giza, Egypt.
| | - Rehab E Abdelrahman
- Department of Toxicology and Forensic Medicine, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Hassan Aboul-Ella
- Department of Microbiology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Marwa A Ibrahim
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Samaa El-Dek
- Department of Material Science and Nanotechnology, Faculty of Postgraduate Studies for Advanced Sciences, Beni-Suef University, Beni-Suef, Egypt
| | - Mohamed Shaalan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, P.O. Box 12211, Giza, Egypt
- Polymer Institute, Slovak Academy of Science, Bratislava, Slovakia
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Shaalan M, El Zaher EZH, Farag OM, Abdallatif AG, Sallam AM. Percutaneous Ilioilial Fixator Versus Percutaneous Iliosacral Screw in Managing Unstable Sacral Fractures: A Prospective Randomised Controlled Study. Cureus 2024; 16:e54358. [PMID: 38500892 PMCID: PMC10946491 DOI: 10.7759/cureus.54358] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/17/2024] [Indexed: 03/20/2024] Open
Abstract
INTRODUCTION Unstable sacral fractures with pelvic fractures are challenging to both surgeons and patients, particularly in the immediate post-injury phase and later when definitive fixation is undertaken. Percutaneous iliosacral screw fixation is widely regarded as the gold standard treatment for unstable sacral fractures without spinopelvic dissociation. Closed reduction and percutaneous fixation using iliosacral screws for sacral fractures provide early stabilisation without the need for extensive surgical exposure, thereby mitigating major complications associated with open surgical procedures. A new technique for stabilising unstable sacral fractures is the minimally invasive ilioilial fixator, also called a transiliac internal fixator (TIIF), which has gained more attention for its ability to address challenges associated with sacroiliac screw fixation. The objective of this study is to compare the functional, radiological, and surgical outcomes between the percutaneous iliosacral screw and the ilioilial fixator. METHODS A total of 51 patients with sacral fracture injuries sustained between August 2019 and November 2021 were included in this study, with 25 patients in Group A and 26 patients in Group B. Patient randomization was done using computer-generated randomization facilitated by Random Allocation Software (Mahmood Saghaei, Isfahan, Iran). All patients underwent the chosen intervention within 10 days of the trauma. Patients had follow-up at two weeks, six weeks, and 12 months post-treatment. The results of fixation were evaluated radiologically based on the Matta and Tornetta grading system and clinically using the Majeed pelvic scoring system. Complications were detected in both groups during follow-up visits. RESULTS The study found no statistically significant differences between the two patient groups in terms of final clinical assessment (p=0.79), radiological assessment (p=0.78), or the need for another operation (p=1.0). Moreover, there were no statistically significant differences between the groups with respect to complication rates (p=0.63) or the time of union (p=0.14). No differences were noted in terms of intraoperative blood loss (p=0.93) or operative time (p=0.34) but for longer incision length in the ilioilial fixator group (p<0.001) and an increased risk of intraoperative radiation exposure in the iliosacral screw group (p<00.1). DISCUSSION Although the iliosacral screw is considered a gold standard for unstable sacral fracture, a TIIF is a good alternative with a very satisfactory outcome. CONCLUSION Although the iliosacral screw still remains the gold standard for the management of sacral fractures, the ilioilial fixator emerges as a good alternative with comparable functional and radiological outcomes.
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Affiliation(s)
- Mohamed Shaalan
- Trauma and Orthopaedics, Worcester Royal Hospital, Worcester, GBR
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Marouf S, Li X, Salem HM, Ahmed ZS, Nader SM, Shaalan M, Awad FH, Zhou H, Cheang T. Molecular detection of multidrug-resistant Pseudomonas aeruginosa of different avian sources with pathogenicity testing and in vitro evaluation of antibacterial efficacy of silver nanoparticles against multidrug-resistant P. aeruginosa. Poult Sci 2023; 102:102995. [PMID: 37566970 PMCID: PMC10440575 DOI: 10.1016/j.psj.2023.102995] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023] Open
Abstract
Pseudomonas aeruginosa (P. aeruginosa) is a serious zoonotic pathogen threaten the poultry industry causing severe economic losses therefor, this study aimed to isolation, phenotypic, molecular identification of P. aeruginosa from different avian sources (chickens, turkey, pigeons, table eggs, and dead in shell chicken embryos), from different Egyptian governorates (Giza, Qalubia, Beheira, El-Minya, and Al-Sharqia) with applying of antibiotic sensitivity test on all P. aeruginosa isolates. Highly resistant isolates (n = 49) were subjected to molecular identification of P. aeruginosa with detection of resistant genes including carbapenemase-encoding genes blaKPC, blaOXA-48, and blaNDM. On the base of molecular results, a highly resistant P. aeruginosa strain was tested for its pathogenicity on day old specific pathogen free (SPF) chicks. Also, in vitro experiment was adopted to evaluate the efficacy of silver nanoparticles (Ag-NPs) against highly antibiotic-resistant P. aeruginosa strains. The overall isolation percentage was from all examined samples were 36.2% (571/1,576) representing 45.2% (532/1,176) from different birds' tissues and 39/400 (9.7%) from total egg samples. Some of isolated strains showed multidrug resistance (MDR) against kanamycin, amoxicillin, amoxicillin-clavulanic acid, neomycin, chloramphenicol, vancomycin, cefotaxime clavulanic acid, lincomycin-spectinomycin, co-trimoxazole, cefoxitin, gentamycin, and doxycycline. These MDR strains were also molecularly positive for ESBL and carbapenemase-encoding genes. MDR strain showed high pathogenicity with histopathological alterations in different organs in challenged birds. Main histopathological lesions were necrosis of hepatocytes, renal tubular epithelium, and heart muscle bundles. The MDR strain showed in vitro sensitivity to Ag-NPs. In conclusion, MDR P. aeruginosa is a serious pathogen causing high morbidity, mortality, and pathological tissue alterations. Ag NPs revealed a promising in vitro antimicrobial sensitivity against MDR P. aeruginosa and further in vivo studies were recommended.
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Affiliation(s)
- Sherif Marouf
- Department of Microbiology, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt
| | - Xiting Li
- Department of Periodontology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, China
| | - Heba M Salem
- Department of Poultry Diseases, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt
| | - Zeinab S Ahmed
- Department of Zoonoses, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt
| | - Sara M Nader
- Department of Zoonoses, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt
| | - Mohamed Shaalan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt.
| | | | - Hongyan Zhou
- Department of Neurology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
| | - Tuckyun Cheang
- Department of Breast Care Surgery, the First Affiliated Hospital of clinical Medicine of Guangdong Pharmaceutical University, Guangzhou 510080, China
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Salem MA, Mahdy OA, Shaalan M, Ramadan RM. The phylogenetic position and analysis of Renicola and Apharyngostrigea species isolated from Cattle Egret (Bubulcus ibis). Sci Rep 2023; 13:16195. [PMID: 37759085 PMCID: PMC10533816 DOI: 10.1038/s41598-023-43479-y] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 09/25/2023] [Indexed: 09/29/2023] Open
Abstract
Cattle Egret (Bubulcus ibis) is one of the most well-known herons in Egypt. It is called the friend of the farmer because it benefits farmers and helps them get rid of insects and worms. It acts as a reservoir for many diseases. Few researchers have discussed the significance of parasitic diseases that affect this wild bird and may lead to mortalities among the population especially the importance of vital organs such as kidneys. Therefore, this study aimed to spotlight parasitic infection-affected herons in Egypt and consider the risks to this beneficial bird. During this study, 23 Bubulcus ibis were captured after their death from Abou Rewash Giza Governorate, Egypt, during the period from February to September (2022). Renicola species (spp.) and Apharyngostrigea spp. are two important digenean parasites that were recovered from the kidneys, and small intestine of the heron Cattle Egret (Bubulcus ibis) with an infection rate of (17.2%) and (11.8%) respectively. Histopathological techniques were used to assess tissue alterations while light microscopy and molecular assays were used to assess the parasites. The parasites' morphological and morphometrical characteristics, as well as polymerase chain reaction and sequencing assays (mitochondrial sections), were investigated for the first time in Egypt. These parasites were given in-depth illustrations and drawings. The distinctive qualities of the two species were discussed. As the first record from Egypt, the nucleotide sequences discovered in this work have been uploaded into the GenBank database (accession numbers: OR021986 and OQ955829). Microscopically, the renal blood vessels had vasculitis, necrosis, and other degenerative alterations. Further research analyzing the health of various heron spp. and environmental deterioration can help to close information gaps about the interactions between parasites, their hosts, and environmental health.
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Affiliation(s)
- Mai A Salem
- Department of Parasitology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Olfat A Mahdy
- Department of Parasitology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Mohamed Shaalan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Reem M Ramadan
- Department of Parasitology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
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EL-Nahass ES, Abdelhamid MK, Ali A, Shalaby AA, Shaalan M. Pathological assessment and tissue tropism of two different Egyptian infectious bronchitis strains. Virusdisease 2023; 34:410-420. [PMID: 37780904 PMCID: PMC10533428 DOI: 10.1007/s13337-023-00842-x] [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: 01/13/2023] [Accepted: 09/02/2023] [Indexed: 10/03/2023] Open
Abstract
Avian infectious bronchitis is one of the most common viral infections in chickens affecting all ages. The tropism of infectious bronchitis virus (IBV) strains became broader and more variable posing major implications for the effective control of IBV infection. In this study, two IBV viruses representing classic and variant strains were inoculated intranasally into day-old SPF chicks (105 EID50/0.2 ml/bird). Clinical signs were observed for 15 days post-infection (DPI). Five chicks from each group were euthanized at 2, 4, 6, 8, 10, 12, and 15 DPI for histopathology and virus antigen detection by IHC and quantitative rRT-PCR. Results revealed that both classic and variant IBV strains induced mild clinical signs with no mortalities and fewer various histopathological lesions in infected SPF chickens. Although the viruses were detected by rRT-PCR up to 12 DPI, the affected tissues showed regeneration after 10 DPI with IHC revealing no IBV antigen. In summary, no differences were found in the behaviour of both IBV isolates in chickens. The broad tissue tropism for both IBV strains as indicated by viral antigen detection in various organs with no clinical or gross lesion suggest that the main cause of death in IBV infection under field conditions occurs as a result of complication with secondary infections rather single IBV infection. Due to positive immunostaining in the bursa, it is thought that IBV infection has immunosuppressive consequences, hence further study is required to validate this impact.
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Affiliation(s)
- El-Shaymaa EL-Nahass
- Department of Pathology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511 Egypt
| | - Mohamed Kamal Abdelhamid
- Department of Pathology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511 Egypt
| | - Ahmed Ali
- Department of Poultry Diseases, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511 Egypt
| | - Adel A. Shalaby
- Department of Pathology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511 Egypt
| | - Mohamed Shaalan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211 Egypt
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Doszpoly A, Shaalan M, El-Matbouli M. Silver Nanoparticles Proved to Be Efficient Antivirals In Vitro against Three Highly Pathogenic Fish Viruses. Viruses 2023; 15:1689. [PMID: 37632031 PMCID: PMC10459171 DOI: 10.3390/v15081689] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/27/2023] Open
Abstract
The efficacy of silver nanoparticles (AgNPs) was tested in vitro against three different fish viruses, causing significant economic damage in aquaculture. These viruses were the spring viraemia of carp virus (SVCV), European catfish virus (ECV), and Ictalurid herpesvirus 2 (IcHV-2). The safe concentration of AgNPs that did not cause cytotoxic effects in EPC cells proved to be 25 ng/mL. This dose of AgNPs decreased significantly (5-330×) the viral load of all three viruses in three different types of treatments (virus pre-treatment, cell pre-treatment, and cell post-treatment with the AgNPs). In a higher concentration, the AgNPs proved to be efficient against ECV and IcHV-2 even in a delayed post-cell-treatment experiment (AgNP treatment was applied 24 h after the virus inoculation). These first in vitro results against three devastating fish viruses are encouraging to continue the study of the applicability of AgNPs in aquaculture in the future.
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Affiliation(s)
- Andor Doszpoly
- Veterinary Medical Research Institute, 21 Hungária krt., H-1143 Budapest, Hungary
| | - Mohamed Shaalan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
| | - Mansour El-Matbouli
- Division of Fish Health, Clinic for Avian and Fish Medicine, University of Veterinary Medicine, 1210 Vienna, Austria;
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Boutrus R, El-Sebaie M, Shaalan M, Ibraheem M, Zaza M. Physician Rated Cosmesis and Patient Reported Outcomes after Concomitant Boost (CB) vs. Sequential Boost (SB) for Adjuvant Treatment of Breast Cancer: A Prospective Randomized Study. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.340] [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: 11/28/2022]
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El-Saied M, El-Mahdy MM, Bayoumi M, Soliman RA, Elsayed MF, Sakr EED, Bastami M, El-Safty MM, Shaalan M. Pathogenicity and vaccine efficacy of two virulent infectious laryngotracheitis virus strains in Egypt. BMC Vet Res 2022; 18:358. [PMID: 36163027 PMCID: PMC9511729 DOI: 10.1186/s12917-022-03458-3] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 09/15/2022] [Indexed: 12/03/2022] Open
Abstract
Infectious laryngotracheitis (ILT) is an economically crucial respiratory disease of poultry that affects the industry worldwide. Vaccination is the principal tool in the control of the disease outbreak. In an earlier study, we comprehensively characterized the circulating strains in Egypt and identified both CEO-like and recombinant strains are dominant. Herein, we investigated the pathogenicity of two virulent strains representing the CEO-like (Sharkia_2018) and recombinant strain (Qalubia_2018). Additionally, we evaluated the efficacy of different commercial vaccines (HVT-LT, CEO, and TCO) against the two isolates in terms of the histopathological lesion scores and the viral (gC) gene load. A total of 270 White Leghorn-specific pathogen-free male chicks were divided into nine groups of 30 birds, each housed in separate isolators. Birds were distributed as follows; one group was non-vaccinated, non-challenged, and served as a negative control. Two groups were non-vaccinated and infected with the two isolates of interest and served as a positive control to test the pathogenicity. Six groups were vaccinated and challenged; two groups were vaccinated with vector vaccine at one day old. The other four groups were vaccinated with either the CEO- or TCO- vaccine (two groups each) at four weeks of age. Three weeks after vaccination, birds were infected with the virulent ILTV isolates. The larynx, trachea, and harderian gland samples were taken at 1, 3, and 7 days post-infection for histopathological lesion score and molecular detection. Notably, The recombinant strain was more virulent and pathogenic than CEO-like ILTV strains. Moreover, the TCO vaccine was less immunogenic than the vector and CEO vaccines.
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Affiliation(s)
- Mohamed El-Saied
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Magdy M El-Mahdy
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Mahmoud Bayoumi
- Department of Virology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Reem A Soliman
- Central Laboratory for Evaluation of Veterinary Biologics, Abbasia, Cairo, 11381, Egypt
| | - Marwa F Elsayed
- Central Laboratory for Evaluation of Veterinary Biologics, Abbasia, Cairo, 11381, Egypt
| | - Ezz El-Din Sakr
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Mostafa Bastami
- Department of Poultry Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Munir M El-Safty
- Central Laboratory for Evaluation of Veterinary Biologics, Abbasia, Cairo, 11381, Egypt
| | - Mohamed Shaalan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt.
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Mahboub HH, Shahin K, Mahmoud SM, Altohamy DE, Husseiny WA, Mansour DA, Shalaby SI, Gaballa MMS, Shaalan M, Alkafafy M, Rahman ANA. Silica nanoparticles are novel aqueous additive mitigating heavy metals toxicity and improving the health of African catfish, Clarias gariepinus. Aquat Toxicol 2022; 249:106238. [PMID: 35863252 DOI: 10.1016/j.aquatox.2022.106238] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 07/06/2022] [Accepted: 07/10/2022] [Indexed: 06/15/2023]
Abstract
Silica nanoparticles (SiNPs) are among the non-toxic nanoparticles (NPs) that have magnetic capabilities. It is hypothesized that SiNPs may be able to reduce toxic effects exerted by a mixture of lead (Pb) and mercury (Hg) in African catfish Clarias gariepinus. The in vitro magnetic potential of SiNPs to absorb Pb and Hg was tested. Fish (N = 240) were divided into four groups in triplicates for 30 days. The first group served as control and the second group (SiNPs) was exposed to 1/10 of 96 h LC50 of SiNPs (14.45 mg/L). The third group (HMM) was exposed to 1/10 of 96-h LC50 of a mixture of mercury chloride (HgCl2) and lead chloride (PbCl2) equal to 0.04 mg/ L and 23.1 mg/L. The fourth group (SiNPs+ HMM) was exposed to a suspension composed of SiNPs, HgCl2, and PbCl2 at the same concentrations as the third group. Results showed that fish exposed to heavy metals revealed the following consequences; a significant decrease in hematological, immunological (complement-3 and nitric oxide), and antioxidants (total antioxidant capacity, glutathione peroxidase, superoxide dismutase, and catalase) indices, down-regulation of IL-1β, IL-8, TGF-β, NF-κβ, HSP70, and Hepcidin genes, the highest mortality rate (48.33%), higher values of alkaline phosphatase, alanine, and aspartate aminotransferases, urea, creatinine, and branchial malondialdehyde, marked up-regulation of CC chemokine and CXC chemokines, and high HMs residues levels in muscles. Extensive pathology showed degeneration with diffuse vacuolation of hepatopancreatic cells and hemorrhage in the HMM group. Interestingly, the exposed group to SiNPs and HMM demonstrated a decline of HMs concentration in fish muscles and modulated the abovementioned parameters with the regeneration of histological alterations of liver and gills. Based on the study outcomes, we highlight the importance and the safety of SiNPs as a novel aqueous additive to alleviate HMs toxicity and recommend using SiNPs for enhancing fish performance for sustaining aquaculture without adverting safety of human health by their little accumulation in muscular tissue.
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Affiliation(s)
- Heba H Mahboub
- Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Zagazig University, P.O. Box 44511, Zagazig, Sharkia, Egypt.
| | - Khalid Shahin
- Aquatic Animal Diseases Laboratory, Department of Aquaculture, National Institute of Oceanography and Fisheries, P.O. Box 43511, Suez, Egypt
| | - Shereen M Mahmoud
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Suez Canal University, P.O. Box 41522, Ismailia, Egypt
| | - Dalia E Altohamy
- Department of Pharmacology, Central Laboratory, Faculty of Veterinary Medicine, Zagazig University, P.O. Box 44511, Zagazig, Sharkia, Egypt
| | - Walaa A Husseiny
- Department of Animal Wealth Development, Faculty of Veterinary Medicine, Suez Canal University, P.O. Box 41522, Ismailia, Egypt
| | - Doaa A Mansour
- Department of Biochemistry and Chemistry of Nutrition, Faculty of Veterinary Medicine, University of Sadat City, Egypt
| | - Shimaa I Shalaby
- Department of Physiology, Faculty of Veterinary Medicine, Zagazig University, P.O. Box 44511, Zagazig, Sharkia, Egypt
| | - Mohamed M S Gaballa
- Department of Pathology, Faculty of Veterinary Medicine, Benha University, P.O. Box 13736, Qalyobiya, Egypt
| | - Mohamed Shaalan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, P.O. Box 12211, Giza, Egypt
| | - Mohamed Alkafafy
- Department of Biotechnology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Afaf N Abdel Rahman
- Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Zagazig University, P.O. Box 44511, Zagazig, Sharkia, Egypt.
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Saleh M, Essawy E, Shaalan M, Osman S, Ahmed F, El-Matbouli M. Therapeutic Intervention with Dietary Chitosan Nanoparticles Alleviates Fish Pathological and Molecular Systemic Inflammatory Responses against Infections. Mar Drugs 2022; 20:md20070425. [PMID: 35877718 PMCID: PMC9315998 DOI: 10.3390/md20070425] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/23/2022] [Accepted: 06/24/2022] [Indexed: 11/16/2022] Open
Abstract
Marine bio-sourced chitosan nanoparticles (CSNP) are antimicrobial and immunomodulatory agents beneficial for fish medicine. Herein, dietary CSNP was investigated for the amelioration of the systemic inflammatory responses of an induced fish model. One hundred and forty-four rainbow trout were assigned to one pathogen-free and non-supplemented group (negative control), and three challenged groups: non-supplemented (positive control), CSNP-preventive, and CSNP-therapeutic. After a feeding experiment extended for 21 days, the organosomatic indices (OSI) and molecular aspects were assessed. After a challenge experiment extended for further 28 days, CSNP-therapeutic intervention was assessed on fish survival and systemic inflammatory responses on pathology, histo-morphology, and molecular aspects. With CSNP administration, OSI nonsignificantly decreased and the relative expression of targeted inflammatory-mediator genes was significantly increased. The CSNP-therapeutic fish showed an RPS of 80% as compared to the positive control group, and CSNP-therapeutic administration retained the highest gene expression augmentation up to 28 days after the challenge. Notably, the splenic reticulin fibers framework of the CSNP-therapeutic group retained the highest integrity among the groups during the infection. After recovery, reticulin fibers density in the CSNP-therapeutic samples was significantly higher than in the negative control group, which indicates high innate immunity. Thus, CSNP showed promising biotherapeutic features enhancing fish resistance against infections.
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Affiliation(s)
- Mona Saleh
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, Austria; (E.E.); (M.S.); (M.E.-M.)
- Correspondence: (M.S.); (F.A.)
| | - Ehab Essawy
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, Austria; (E.E.); (M.S.); (M.E.-M.)
- Department of Chemistry, Biochemistry Division, Faculty of Science, Helwan University, Cairo 11790, Egypt
- Bioinformatics Center, Faculty of Science, Helwan University, Cairo 11790, Egypt
| | - Mohamed Shaalan
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, Austria; (E.E.); (M.S.); (M.E.-M.)
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Cairo 12613, Egypt
| | - Shaaban Osman
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt;
| | - Fatma Ahmed
- Department of Zoology, Faculty of Science, Sohag University, Sohag 82524, Egypt
- Correspondence: (M.S.); (F.A.)
| | - Mansour El-Matbouli
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, Austria; (E.E.); (M.S.); (M.E.-M.)
- Division of Aquatic Animal Health, School of Veterinary Medicine, Badr Universiy, Cairo 11829, Egypt
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13
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Tabaa MME, Fattah AMK, Shaalan M, Rashad E, El Mahdy NA. Dapagliflozin mitigates ovalbumin-prompted airway inflammatory-oxidative successions and associated bronchospasm in a rat model of allergic asthma. Expert Opin Ther Targets 2022; 26:487-506. [PMID: 35549595 DOI: 10.1080/14728222.2022.2077723] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 01/30/2023]
Abstract
BACKGROUND Asthma is a chronic inflammatory lung disease that universally affects millions of people. Despite numerous well-defined medications, asthma is poorly managed. The study aimed to clarify the potential therapeutic effect of Dapagliflozin (DAPA) against lung inflammation, oxidative stress and associated bronchospasm in OVA-sensitized rat asthma model. RESEARCH DESIGN AND METHODS Twenty-five rats were allocated into (Control, Asthma, DEXA, DAPA, and DAPA+DEXA). All treatments were administered orally once a day for two weeks. BALF levels of IL-17, TNFα, IL-1β, and MCP-1 were determined to assess airway inflammation. For oxidative stress determination, BALF MDA levels and TAC were measured. The BALF S100A4 level and NO/sGC/cGMP pathway were detected. Lung histopathological findings and immunohistochemical investigation of eNOS and iNOS activities were recorded. RESULTS DAPA significantly reduced (p < 0.001) airway inflammatory-oxidative markers (IL-17, TNFα, IL-1β, MCP1, and MDA), but increased (p < 0.001) TAC, and mitigated bronchospasm by activating NO/sGC/cGMP and reducing S100A4 (p < 0.001). The biochemical and western blot studies were supported by histopathological and immunohistochemical investigations. CONCLUSIONS : DAPA is presenting a new prospective possibility for future asthma therapy due to its anti-inflammatory, anti-oxidant, and bronchodilator properties. DAPA has the property of reducing Dexamethasone (DEXA)-associated unfavorable effects during asthma treatment.
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Affiliation(s)
- Manar Mohammed El Tabaa
- Pharmacology & Environmental Toxicology, Environmental Studies & Research Institute (ESRI), University of Sadat City,Egypt
| | - Aliaa Mohammed Kamel Fattah
- Environmental Studies & Research Institute (ESRI), University of Sadat City, Sadat city, Minofia Governorate, Egypt
| | - Mohamed Shaalan
- Pathology Department, Faculty of Veterinary Medicine, Cairo University, Egypt
| | - Eman Rashad
- Cytology and Histology Department, Faculty of Veterinary Medicine, Cairo University, Egypt
| | - Nageh Ahmed El Mahdy
- Pharmacology and Toxicology Department, Faculty of Pharmacy,Tanta University, Egypt
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14
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Tabaa MME, Aboalazm HM, Shaalan M, Khedr NF. Silymarin constrains diacetyl-prompted oxidative stress and neuroinflammation in rats: involvements of Dyn/GDNF and MAPK signaling pathway. Inflammopharmacology 2022; 30:961-980. [PMID: 35366745 PMCID: PMC9135832 DOI: 10.1007/s10787-022-00961-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 02/25/2022] [Indexed: 11/26/2022]
Abstract
Neuroinflammation, a major component of many CNS disorders, has been suggested to be associated with diacetyl (DA) exposure. DA is commonly used as a food flavoring additive and condiment. Lately, silymarin (Sily) has shown protective and therapeutic effects on neuronal inflammation. The study aimed to explore the role of Sily in protecting and/or treating DA-induced neuroinflammation. Neuroinflammation was induced in rats by administering DA (25 mg/kg) orally. Results revealed that Sily (50 mg/kg) obviously maintained cognitive and behavioral functions, alleviated brain antioxidant status, and inhibited microglial activation. Sily enhanced IL-10, GDNF and Dyn levels, reduced IFN-γ, TNFα, and IL-1β levels, and down-regulated the MAPK pathway. Immunohistochemical investigation of EGFR and GFAP declared that Sily could conserve neurons from inflammatory damage. However, with continuing DA exposure during Sily treatment, oxidative stress and neuroinflammation were less mitigated. These findings point to a novel mechanism involving the Dyn/GDNF and MAPK pathway through which Sily might prevent and treat DA-induced neuroinflammation.
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Affiliation(s)
- Manar Mohammed El Tabaa
- Pharmacology & Environmental Toxicology, Environmental Studies & Research Institute (ESRI), University of Sadat City, Minofia Governorate, Sadat city, Egypt
| | - Hamdi M. Aboalazm
- Biochemistry, Environmental Studies & Research Institute (ESRI), University of Sadat City, Sadat City, Egypt
| | - Mohamed Shaalan
- Pathology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
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15
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Orabi A, Youssef MMG, Manie TM, Shaalan M, Hashem T. Lateral chest wall perforator flaps in partial breast reconstruction. J Egypt Natl Canc Inst 2022; 34:2. [PMID: 35001182 PMCID: PMC8743083 DOI: 10.1186/s43046-021-00100-5] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 12/06/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Breast conserving surgery (BCS) has been a standard procedure for the treatment of breast cancer instead of mastectomy whenever possible. Lateral chest wall perforator flaps are one of the volume replacement techniques that participate in increasing the rate of BCS especially in small- to moderate-sized breasts with good cosmetic outcome. In this study, we tried to evaluate the outcome of those flaps as an oncoplastic procedure instead of the conventional flaps. METHODS This study included 26 patients who underwent partial mastectomy with immediate reconstruction using lateral chest wall perforator flaps in the period from October 2019 to November 2020. The operative time, techniques, and complications were recorded. The cosmetic outcome was assessed 3 months post-radiation therapy through a questionnaire and photographic assessment. RESULTS Lateral intercostal artery perforator (LICAP), lateral thoracic artery perforator (LTAP) and combined flaps were performed in 24, 1, and 1 patients, respectively. The mean operative time was 129.6 ± 13.2 min. The flap length ranged from 10 to 20 cm and its width from 5 to 9 cm. Overall patients' satisfaction was observed to be 88.5% as either excellent or good and the photographic assessment was 96.2% as either excellent or good. CONCLUSIONS Lateral chest wall perforator flaps are reliable and safe option for partial breast reconstruction with an acceptable aesthetic outcome. In the era of oncoplastic breast surgery, they deserve to gain attention especially with the advantages of some modifications added to the classic technique.
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Affiliation(s)
- Ahmed Orabi
- Surgical Oncology Department, National Cancer Institute, Cairo University, Cairo, Egypt.
| | - Mina M G Youssef
- Norfolk and Norwich University Hospital, Norwich, UK.,Breast Surgery Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Tamer M Manie
- Breast Surgery Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Mohamed Shaalan
- Breast Surgery Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Tarek Hashem
- Breast Surgery Department, National Cancer Institute, Cairo University, Cairo, Egypt
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16
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Salem HM, Ismael E, Shaalan M. Evaluation of the Effects of Silver Nanoparticles Against Experimentally Induced Necrotic Enteritis in Broiler Chickens. Int J Nanomedicine 2021; 16:6783-6796. [PMID: 34675507 PMCID: PMC8502061 DOI: 10.2147/ijn.s319708] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [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] [Received: 05/11/2021] [Accepted: 09/22/2021] [Indexed: 01/27/2023] Open
Abstract
Background Clostridium perfringens-associated necrotic enteritis (NE) is a serious problem affecting broiler production. A major global challenge is to reduce the use of antibiotics in poultry industry due to their negative impacts on public health. One alternative is to use nanoparticles (NPs) to overcome bacterial resistance to antibiotics. Silver nanoparticles (Ag NPs) showed strong antimicrobial activity. Methods A total of 120 Cobb broiler chicks (1-day old) were obtained for this study and were divided into 4 equal groups at age of 14 days (30 birds each); each group was subdivided into 3 equal replicates (10 birds each). The groups were designated as follows: G1, infected; G2, infected and treated with Ag NPs; G3, treated with Ag NPs; and G4, negative control. Birds were infected with 4×108 colony forming unit (CFU)/mL/bird C. perfringens type A for 2 successive days. In the treated groups, Ag NPs (mean diameter 15 nm; total dose 150 µg/bird) were administered via crop gavage. During the observation period (5 weeks), bird performance and immune organ indexes were recorded. Serum samples were collected for immunological evaluation, and tissue samples were collected for histopathology and estimation of Ag NPs residues. Results Treatment with Ag NPs reduced the colonization of C. perfringens in the intestine and ceca, decreased the severity of clinical signs and reduced mortalities in comparison with infected non-treated group. Ag NPs treatment alleviated pathological lesions in the intestine and liver, but their residues were found in the muscles. Conclusion Ag NPs have a positive impact on gut health integrity while having no impact on immune organs. Ag NPs have some residues in muscles; therefore, further studies are needed on the concentration and size of Ag NPs, the route of administration, and withdrawal time to ensure the safety of chicken meat for human consumption.
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Affiliation(s)
- Heba M Salem
- Department of Poultry Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Elshaimaa Ismael
- Department of Veterinary Hygiene and Management, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
| | - Mohamed Shaalan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, 12211, Egypt
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17
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Affiliation(s)
- Wafaa A. Abd El-Ghany
- Department of Poultry Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Mohamed Shaalan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Heba M. Salem
- Department of Poultry Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
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18
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Loutfy SA, Abdallah ZF, Shaalan M, Moneer M, Karam A, Moneer MM, Sayed IM, Abd El-Hafeez AA, Ghosh P, Zekri ARN. Prevalence of MMTV-Like env Sequences and Its Association with BRCA1/2 Genes Mutations Among Egyptian Breast Cancer Patients. Cancer Manag Res 2021; 13:2835-2848. [PMID: 33814932 PMCID: PMC8009344 DOI: 10.2147/cmar.s294584] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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] [Received: 11/28/2020] [Accepted: 03/01/2021] [Indexed: 01/04/2023] Open
Abstract
Background Mouse mammary tumor virus (MMTV) is thought to have a role in human breast cancer (BC) pathogenesis. BRCA1 and 2 genes mutations are well-established risk factors for BC. The purpose of this study was to evaluate the presence of MMTV in familial and non-familial Egyptian breast cancer patients. We also aimed to establish a correlation between BRCAs genes mutations and MMTV infection in those patients. Patients and Methods The study was included 80 BC patients and 10 healthy women were included as a control group. We used PCR to amplify a 250-bp MMTV-like env sequence. We also used PCR followed by direct sequencing to identify the genetic variation of exons 2, 13, 19 of BRCA1 gene and exon 9 and region f of exon 11 of BRCA2 gene. High resolution melting (HRM) analysis was used to screen the selected exons of BRCA1/2 genes in order to detect different variants. Results MMTV DNA-like env sequences were detected in 70%, 76% of familial and non-familial BC patients, respectively, and it was not detected in any of the control subjects. The presence of viral sequences was associated with larger tumor size in the sporadic patients. Seventy BC patients showed variations in BRCA1/2 genes according to HRM analysis and sequencing analysis showed two different sequences of polymorphism among 22 familial and non-familial BC patients. Conclusion MMTV DNA was present among BC patients and it was associated with increased tumor growth. This indicates a potential role for MMTV in BC patients with and without deleterious mutation in BRCA1/2 genes.
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Affiliation(s)
- Samah A Loutfy
- Virology and Immunology Unit, Cancer Biology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Zeinab F Abdallah
- Virology and Immunology Unit, Cancer Biology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Mohamed Shaalan
- Surgical Oncology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Mohamed Moneer
- Surgical Oncology Department, Materia Teaching Hospital, Cairo, Egypt
| | - Adel Karam
- Surgical Oncology Department, Materia Teaching Hospital, Cairo, Egypt
| | - Manar M Moneer
- Biostatistics and Epidemiology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Ibrahim M Sayed
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut, Egypt.,Department of Pathology, School of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Amer Ali Abd El-Hafeez
- Pharmacology and Experimental Oncology Unit, Cancer Biology Department, National Cancer Institute, Cairo University, Cairo, Egypt.,Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Pradipta Ghosh
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, 92093, USA.,Department of Medicine, University of California, San Diego, La Jolla, CA, 92093, USA.,Moores Cancer Center, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Abdel-Rahman N Zekri
- Virology and Immunology Unit, Cancer Biology Department, National Cancer Institute, Cairo University, Cairo, Egypt
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19
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Abuowarda M, AbuBakr HO, Ismael E, Shaalan M, Mohamed MA, Aljuaydi SH. Epidemiological and genetic characteristics of asymptomatic canine leishmaniasis and implications for human Leishmania infections in Egypt. Zoonoses Public Health 2021; 68:413-430. [PMID: 33715312 DOI: 10.1111/zph.12824] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 11/09/2020] [Revised: 01/30/2021] [Accepted: 02/10/2021] [Indexed: 12/23/2022]
Abstract
Leishmaniasis is a neglected zoonotic disease that poses significant veterinary and public health risks in developing countries. Dogs act as a reservoir host for leishmaniasis transmitted to humans. A total of 108 human cases of cutaneous leishmaniasis (CL) were identified in the Al-Houd Al-Marsoud Hospital in Cairo, Egypt, during 2018. Blood samples and skin biopsies were collected for further examination. Blood samples from 96 asymptomatic dogs were collected. All samples were subjected to molecular and phylogenetic analysis. Quantitative RT-PCR was used to measure the expression of genes related to mTOR signalling and inflammation in blood and tissue samples. The distribution pattern of human cases pointed to an endemic focus in North Sinai (66.67%). The prevalence of asymptomatic canine leishmaniasis was 66.60%. Histopathological examination of human skin lesions revealed a severe granulomatous inflammatory reaction, necrosis and ulceration. Moreover, leishmanial amastigotes could be detected in human tissue samples. Phylogenetic analysis revealed 100% identity of human isolates to Leishmania tropica (MN453682), and dog isolates to Leishmania infantum (MN453673), with 94.9% similarity between the two isolates. Gene expression related to mTOR signalling and inflammation in both species' samples confirmed a significant alteration of EIF4EBP1, CCR4 and INF-γ expression compared with control groups. In Egypt, increased incidence of asymptomatic carrier dogs acting as a significant reservoir host for Leishmania poses a public health hazard. Findings warrant further epidemiological investigation of CL in Egypt, as well as additional study of parasite differentiation and gene regulation.
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Affiliation(s)
- Mai Abuowarda
- Department of Parasitology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Huda O AbuBakr
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Elshaimaa Ismael
- Department of Veterinary Hygiene and Management, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Mohamed Shaalan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Mona A Mohamed
- Cairo Dermatology and Venereology Hospital (Al-Houd Al-Marsoud Hospital), Cairo, Egypt
| | - Samira H Aljuaydi
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
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Ripley A, Lehr J, Shaalan M, Koppikar S, Gupta V, Gao M, Abdelbaky N, Cardoso F. Evolving psychosocial, emotional, functional, and support needs of women with advanced breast cancer (ABC) in Asia and Middle East (ME): Results from the Count Us, Know Us, Join Us (CUKUJU) survey. Eur J Cancer 2020. [DOI: 10.1016/s0959-8049(20)30698-5] [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: 10/23/2022]
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21
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Farouk MM, El-Molla A, Salib FA, Soliman YA, Shaalan M. The Role of Silver Nanoparticles in a Treatment Approach for Multidrug-Resistant Salmonella Species Isolates. Int J Nanomedicine 2020; 15:6993-7011. [PMID: 33061364 PMCID: PMC7520150 DOI: 10.2147/ijn.s270204] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 08/31/2020] [Indexed: 01/22/2023] Open
Abstract
PURPOSE The main objective of this study is to investigate the antibacterial activity of silver nanoparticles (AgNPs) against multidrug-resistant Salmonella isolates recovered from diarrheic sheep and goats. METHODS This study used chemical reduction synthesis of AgNPs to evaluate their antimicrobial effects by estimation of minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) for each isolate using the microplate dilution method and tetrazolium salt reduction test to detect the viability percentage. In vivo treatment efficacy was assessed in mice by determining the viable count of Salmonella Enteritidis recovered from feces and by hematologic, biochemical and histopathologic examinations to confirm that use of AgNPs has no toxic or pathologic effects and to evaluate its ability in tissue regeneration following treatment. RESULTS All recovered strains were identified as MDR with a prevalence of 4% and 3.6% in sheep and goats, respectively. The results of TEM, DLS, Zeta potential, and FTIR revealed typical characteristics of the synthesized AgNPs. Silver nanoparticles showed antibacterial activity against all recovered strains with MIC of ≤0.02-0.313 μg/mL (mean average 0.085±0.126 μg/mL) and MBC of 0.078-1.250 μg/mL (average 0.508±0.315 μg/mL). In vivo efficacy of AgNPs was observed by a reduction in the number of viable S. Enteritidis recovered from feces in an S. Enteritidis infected mouse model, with complete shedding stopping between treatment days 4 and 6. Hematologic, serum biochemical, and histopathologic analyses proved the ability of AgNPs to suppress inflammatory reaction caused by S. Enteritidis infection. CONCLUSION The study proved the effective ability of AgNPs to fight MDR Salmonella spp. in vitro and in vivo without adverse effects.
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Affiliation(s)
- Manar M Farouk
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza12211, Egypt
| | - Amal El-Molla
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza12211, Egypt
| | - Fayez A Salib
- Department of Internal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza12211, Egypt
| | - Yousef A Soliman
- Central Laboratory for Evaluation of Veterinary Biologics (CLEVB), Cairo, Egypt
| | - Mohamed Shaalan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza12211, Egypt
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22
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Shaalan M, Sellyei B, El-Matbouli M, Székely C. Efficacy of silver nanoparticles to control flavobacteriosis caused by Flavobacterium johnsoniae in common carp Cyprinus carpio. Dis Aquat Organ 2020; 137:175-183. [PMID: 31942863 DOI: 10.3354/dao03439] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Flavobacterial infections are among the causes of fish losses in farms with the emergence of antibiotic-resistant isolates. Silver nanoparticles (AgNPs) are known for their potent antimicrobial activity against different types of bacteria. In this study, we evaluated the antibacterial properties of AgNPs (diameter: 23 nm) against Flavobacterium johnsoniae infection in common carp Cyprinus carpio. The assays included both in vitro and in vivo antibacterial tests in addition to evaluation of cell toxicity effects on the fish cell lines. The in vitro results revealed potent inhibitory effects of AgNPs on the growth of F. johnsoniae with a minimum inhibitory concentration of 34 µg ml-1. Fish cell (epithelioma papulosum cyprini and koi carp fin) viability was 95-100% after exposure to 500 ng ml-1 (and lower concentrations) of AgNPs. In the exposure experiment, mortality rates decreased from 45% in the infected non-treated group to 30 and 15% in the intraperitoneal injection and immersion-treated groups, respectively. Neither of the treated groups showed any clinical signs or histopathological lesions. The single-dose treatment with AgNPs during early infection with F. johnsoniae aided in minimizing fish losses.
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Affiliation(s)
- Mohamed Shaalan
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt
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Shaalan M, El-Mahdy M, Theiner S, Dinhopl N, El-Matbouli M, Saleh M. Silver nanoparticles: Their role as antibacterial agent against Aeromonas salmonicida subsp. salmonicida in rainbow trout (Oncorhynchus mykiss). Res Vet Sci 2018; 119:196-204. [PMID: 29958154 DOI: 10.1016/j.rvsc.2018.06.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 06/18/2018] [Accepted: 06/20/2018] [Indexed: 11/19/2022]
Abstract
The rise of bacterial resistance to antibiotics is one of the great challenges of our age. One of the strategies to limit the development of antibiotics resistance is the investigation of alternative antimicrobials. As silver nanoparticles demonstrated a potent bactericidal activity in vitro, the aim of this study was to evaluate the in vivo antibacterial activity of silver nanoparticles against Aeromonas salmonicida subsp. salmonicida. Rainbow trout (n = 120) were divided into four groups of 30 fish each. First group was challenged with A. salmonicida (Positive control), the second group was challenged with A. salmonicida and exposed to silver nanoparticles by immersion for three hours (100 μg/L), the third group was challenged with A. salmonicida and intraperitoneally injected with silver nanoparticles (17 μg/mL) and the fourth group was sham-treated and served as a negative control group. At the 7th day post challenge, histopathology of the positive control group revealed the presence of bacterial aggregates in tissues with degenerative and necrotic changes, while at the 35th day post challenge, only liver necrosis persisted. Silver nanoparticles-treated and negative control groups did not show any clinical signs, mortalities or histopathological alterations and they were tested negative for A. salmonicida. The immersion in silver nanoparticles did not result in detectable residues of silver in the muscles 35 days after treatment. These findings demonstrate the antibacterial properties of silver nanoparticles against A. salmonicida infection. Therefore, they could be used for development of antibacterial agents in aquaculture.
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Affiliation(s)
- Mohamed Shaalan
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, Austria; Department of Pathology, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt
| | - Magdy El-Mahdy
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, 12211 Giza, Egypt
| | - Sarah Theiner
- Institute of Analytical Chemistry, University of Vienna, WähringerStraße 38, 1090 Vienna, Austria
| | - Nora Dinhopl
- Institute of Pathology and Forensic Veterinary Medicine, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, Austria
| | - Mansour El-Matbouli
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, Austria.
| | - Mona Saleh
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, Austria
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Abdelsalam M, Elgendy MY, Shaalan M, Moustafa M, Fujino M. Rapid identification of pathogenic streptococci isolated from moribund red tilapia (Oreochromis spp.). Acta Vet Hung 2017; 65:50-59. [PMID: 28244330 DOI: 10.1556/004.2017.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 11/19/2022]
Abstract
Accurate and rapid identification of bacterial pathogens of fish is essential for the effective treatment and speedy control of infections. Massive mortalities in market-sized red tilapia (Oreochromis spp.) were noticed in mariculture concrete ponds in northern Egypt. Histopathological examination revealed marked congestion in the central vein of the liver with the presence of bacterial aggregates inside the lumen and in the vicinity of the central vein. A total of 12 isolates of streptococci were obtained from the moribund fish. This study documented the ability of the MicroSeq 500 16S bacterial sequencing method to accurately identify Streptococcus agalactiae and S. dysgalactiae mixed infections from moribund red tilapia that were difficult to be recognised by the commercial biochemical systems. The continuously decreasing cost of the sequencing technique should encourage its application in routine diagnostic procedures.
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Affiliation(s)
- Mohamed Abdelsalam
- 1Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Mamdouh Y. Elgendy
- 2Department of Hydrobiology, Veterinary Research Division, National Research Centre, Dokki, Giza, Egypt
| | - Mohamed Shaalan
- 3Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
- 4Clinical Division of Fish Medicine, University of Veterinary Medicine, Veterinärplatz 1, A-1210 Vienna, Austria
| | - Mohamed Moustafa
- 1Department of Fish Diseases and Management, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
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Shaalan M, El-Mahdy M, El-Matbouli M, Saleh M. Zinc Oxide Nanoparticles as a Novel Tool to Combat Yersinia ruckeri and Aphanomyces invadans. J Comp Pathol 2017. [DOI: 10.1016/j.jcpa.2016.11.056] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Shaalan M, Saleh M, El-Mahdy M, El-Matbouli M. Recent progress in applications of nanoparticles in fish medicine: A review. Nanomedicine: Nanotechnology, Biology and Medicine 2016; 12:701-710. [DOI: 10.1016/j.nano.2015.11.005] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Revised: 10/20/2015] [Accepted: 11/14/2015] [Indexed: 10/22/2022]
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Sakkary M, Malt O, Khafagy M, Hussein A, Shaalan M. 89. Lymphatic arm mapping, a new concept in prevention of lymphedema during axillary lymph node dissection for breast carcinoma. Eur J Surg Oncol 2014. [DOI: 10.1016/j.ejso.2014.08.086] [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: 11/29/2022] Open
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Razek NA, Eshak SE, el Ghazaly H, Omar OS, Yousef OZ, Shaalan M. Percutaneous breast lesion excision system (BLES): A new tool for complete closed excision of high risk lesions (Egyptian experience). The Egyptian Journal of Radiology and Nuclear Medicine 2013. [DOI: 10.1016/j.ejrnm.2013.02.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Samy N, Ragab HM, El Maksoud NA, Shaalan M. Prognostic significance of serum Her2/neu, BCL2, CA15-3 and CEA in breast cancer patients: a short follow-up. Cancer Biomark 2010; 6:63-72. [PMID: 20571232 DOI: 10.3233/cbm-2009-0119] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
UNLABELLED Breast cancer is the most common malignancy in women, options for treatment of breast cancers are complex and varied, there is a need for biological prognostic indicators that would, alone or in combination with others, be sufficient to predict disease recurrence and hence, the basis for supplemental treatment after local therapy. The aim of this study was to determine prognostic significance of serum Her2/neu, BCL2, CA 15-3 and CEA during the follow-up of the patients with breast cancer, also, to investigate the association between these biomarkers and clinicopathological parameters and patient outcomes in breast cancer. PATIENTS AND METHODS Eighty nine patients with breast cancer stage I and II are enrolled in our study. Their age ranged from 35-59 years. Patients underwent radical mastectomy or breast-conserving surgery with axillary lymph node dissection. After the surgical treatment they had supplementary therapy. The size of the tumor was < 2 cm in 35 patients and > 2 cm in 54 patients. Their histological type was invasive duct carcinoma, 49 patients had lymph node positive and 40 had negative lymph node. Nine patients had recurrence of the disease during the 18 months of follow up. BCL2, Her2/neu, CEA and CA15-3 in sera had been monitored by ELISA before and after operation, every 6 months and at the time of diagnosis of first recurrence for 18 months. RESULTS Preoperative serum levels of Her2/neu, BCL2, CA15-3 and CEA were significantly higher compared with the levels of the control group, these markers dropped significantly after operation. Univariate analysis of parameters associated with relapse showed that the clinicopathological factors (histologic grade, tumor stage and lymph nodes) and serum markers (HER2/neu, BCL2, CA15-3 and CEA) were significantly associated with recurrence of disease. Multivariate analysis of investigated parameters revealed that tumor stage, lymph nodes and serum tumor markers were significant variables predicting recurrence of tumor. CONCLUSION Serum Her2/neu, BCL2, CA15-3 and CEA in breast cancer patients were useful markers for predicting aggressive behavior of tumor and elevated serum levels are associated with breast cancer relapse. Our relatively small study population limits the predictive power of the panels presented here, but the benefits of a serum biomarker and multimarker approach are clearly illustrated and further studies utilizing larger clinical cohorts are well warranted.
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Affiliation(s)
- Nervana Samy
- Department of Biochemistry, Genetic Engineering and Biotechnology Research Division, National Research Centre, Cairo, Egypt.
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Shaalan M, Ahmed W. Menopause syndrome: a medical scapegoat and a sociological blindspot. Popul Sci 2002:17-24. [PMID: 12337516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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Abstract
A sample of 700 female epileptic outpatients was examined between 1985 and 1987. The incidence of psychosexual disorders was 18%. Epileptic females with psychosexual disorders were compared with epileptic females without sexual disorders and with normal female controls on selected clinical and EEG parameters. Epileptic females with sexual disorders showed: lower marriage rates, a longer duration of illness, sexually colored prodromata, predominance of partial complex seizures (83%) and a higher incidence of menstrual abnormalities. Hyposexuality and exhibitionism were the psychosexual disorders most frequently noted. Temporal lobe EEG abnormalities were significantly higher.
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Affiliation(s)
- A Demerdash
- Department of Psychiatry, Al Azhar Faculty of Medicine, Cairo, Egypt
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Shaalan M. Addiction: contribution of psychodynamic insights to social measures. Egypt J Psychiatry 1979; 2:88-97. [PMID: 556062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Shaalan M, Rakhawy YT, Gawàd MS, Loutfi Z. Experiences with group psychotherapy in the Egyptian culture: the public hospital setting. Egypt J Psychiatry 1978; 1:69-78. [PMID: 263023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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