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Romano MC. Toxic Garden and Landscaping Plants. Vet Clin North Am Equine Pract 2024; 40:61-76. [PMID: 38061967 DOI: 10.1016/j.cveq.2023.11.002] [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] [Indexed: 03/09/2024] Open
Abstract
Many popular ornamental shrubs are not only beautiful but also toxic when ingested in sufficient quantities. Common toxic landscaping shrubs in North America include yew (Taxus spp), oleander (Nerium oleander), and rhododendrons and azaleas (Rhododendron spp). Horses are often exposed when plant trimmings are placed within reach or discarded in pastures. Occasionally clippings or fallen leaves contaminate hay. Some plants are unpalatable unless dried and mixed with hay or lawn clippings but others are ingested more readily. In many cases, disease can be severe and treatment unrewarding; therefore, client education is critical to preventing serious and potentially fatal poisonings.
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Affiliation(s)
- Megan C Romano
- Department of Veterinary Science, Veterinary Diagnostic Laboratory, University of Kentucky, 1490 Bull Lea Road, PO Box 14125, Lexington, KY 40512-4125, USA.
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Mantelli G, Carollo M, Losso L, Costantini I, Morando E, Bacchion M, Pizzuto M, Spagnuolo L, Ricci G. Laurel but Hardy: unintended poisoning, a case report of oleander misidentification as bay laurel. Toxicol Rep 2023; 11:385-388. [PMID: 37885923 PMCID: PMC10598396 DOI: 10.1016/j.toxrep.2023.10.010] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/12/2023] [Accepted: 10/20/2023] [Indexed: 10/28/2023] Open
Abstract
Introduction Nerium oleander is a toxic plant containing cardiac glycosides throughout all its parts, thereby posing severe health risks upon ingestion. The clinical manifestations of oleander poisoning closely resemble those of digoxin toxicity, encompassing a spectrum of gastrointestinal symptoms, neuropsychiatric disorders, and cardiac disturbances. This scientific case report describes a case of accidental intoxication resulting from the consumption of an oleander leaves infusion misidentified as bay laurel leaves. Case report An 84-year-old patient consumed an oleander leaves infusion, and after four hours experienced gastrointestinal symptoms. He contacted the poison control center (PCC) and was advised to go to the emergency department (ED). Upon arrival, the patient presented stable vital signs without cardiac irregularities. The PCC recommended the administration of activated charcoal, vigilant monitoring, including electrocardiography (ECG). Subsequent ECGs assessments revealed the presence of third-degree atrioventricular block; in consultation with the PCC, digoxin-specific antibodies and external pacing were necessary. The patient was discharged on the eighth day in good hemodynamic condition, and outpatient follow-up visits showed clinical stability. Discussion This study offers insights for the management of similar cases. The limitations of conventional assays in measuring oleander cardiac glycosides were observed, emphasizing reliance on clinical evaluation. The patient's trajectory, remaining asymptomatic despite severe ECG changes post-ingestion, underscores the importance of prolonged clinical monitoring.
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Affiliation(s)
- Giovanni Mantelli
- USD Poison Control Center, Azienda Ospedaliera Universitaria integrata, Verona, Italy
| | - Massimo Carollo
- Department of Diagnostics and Public Health, University of Verona, Verona, Italy
| | - Lorenzo Losso
- Department of Medical Toxicology Unit and Poison Control Centre, University of Florence, Florence, Italy
| | - Ilaria Costantini
- USD Poison Control Center, Azienda Ospedaliera Universitaria integrata, Verona, Italy
| | - Elia Morando
- USD Poison Control Center, Azienda Ospedaliera Universitaria integrata, Verona, Italy
| | - Matilde Bacchion
- USD Poison Control Center, Azienda Ospedaliera Universitaria integrata, Verona, Italy
| | - Mauro Pizzuto
- Department of Medicine, University of Verona, Verona, Italy
| | | | - Giorgio Ricci
- USD Poison Control Center, Azienda Ospedaliera Universitaria integrata, Verona, Italy
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Sazmand A, Yavari M, Babaei M, Nourian A, Otranto D. Biliary parascarosis in a foal. Vet Med Sci 2023; 9:1149-1153. [PMID: 36723790 DOI: 10.1002/vms3.1087] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Migration of Ascaris lumbricoides through the papilla of Vater in humans, and entry into the biliary tree, is well-recognised. Ascaris suum and Toxocara vitulorum have been recovered from the liver of swine and buffalo. We necropsied a Persian Kurdish filly at age 6 months, weighing ∼100 kg. Death evidently was caused by oleander (Nerium oleander) intoxication. An 8-cm adult male Parascaris was found at the lobar-left hepatic bile duct junction. We suggest that the nematode entered anteriorly into the hepatic tree, via the duodenum, major duodenal papilla, bile duct, left hepatic duct and finally the lobar duct. Considering the brief 4-h elapsed time between death and necropsy, and the 18-cm distance from the major duodenal papilla to the location of the parasite, we conclude that entry into the biliary tree likely occurred ante-mortem. We advise consideration of Parascaris infection in differential diagnosis of equine hepatic and pancreatic dysfunction.
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Affiliation(s)
- Alireza Sazmand
- Department of Pathobiology, Faculty of Veterinary Science, Bu-Ali Sina University, Hamedan, Iran
| | - Morteza Yavari
- Department of Clinical Sciences, Faculty of Veterinary Science, Bu-Ali Sina University, Hamedan, Iran
| | - Mohammad Babaei
- Department of Clinical Sciences, Faculty of Veterinary Science, Bu-Ali Sina University, Hamedan, Iran
| | - Alireza Nourian
- Department of Pathobiology, Faculty of Veterinary Science, Bu-Ali Sina University, Hamedan, Iran
| | - Domenico Otranto
- Department of Pathobiology, Faculty of Veterinary Science, Bu-Ali Sina University, Hamedan, Iran.,Department of Veterinary Medicine, University of Bari Aldo Moro, Valenzano, Bari, Italy
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Suleiman WB. In vitro estimation of superfluid critical extracts of some plants for their antimicrobial potential, phytochemistry, and GC-MS analyses. Ann Clin Microbiol Antimicrob 2020; 19:29. [PMID: 32680515 PMCID: PMC7367224 DOI: 10.1186/s12941-020-00371-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 07/08/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Along with swift economic evolution and continuous amelioration of lifestyle, people at present are paying more attention to health issues. Synthetic drugs will be compensated with other natural ones that belong to natural origin. Plants have always been considered as sources of several compounds that are used in many fields, especially human and animal health, starting from boosting immunity to the treatment of infectious diseases caused by some pathogenic microbes such as bacteria, fungi as well as viruses. This study aimed to incorporate some types of plants within the antimicrobial portfolio through the examination of different six plants which were Cichorium intybus, Cinnamomum camphora, Commiphora myrrha, Foeniculum vulgare, Nerium oleander, and Spartium junceum. As well, attempting to identify the active constituents of their extracts using GC-MS. MATERIALS AND METHODS All selected plants were analyzed to determine their phytochemical composition such as phenolics, alkaloids, flavonoids, terpenoids, and so on. The extraction step was done by sophisticated equipment called supercritical fluid extractor SFE through adjustment of specific conditions include temperature, time, flow rate and pressure to change the behavior of CO2. Testing the antimicrobial activity of each plant extract via agar well diffusion method through the formation of clear zones against a wide range of test microorganisms including both Gram-positive and Gram-negative bacteria as well as yeasts. Finally, attempting to primarily identify the constituents of each plant extract using GC-MS. RESULTS AND DISCUSSION The crude extract of F. vulgare showed the highest potency against C. albicans, E. faecalis and S. typhimurium, it contains some unique compounds such as squalene, eugenol and isoeugenol while, Extract of C. intybus showed a moderate activity especially against C. lipolytica and MRSA and it includes Vitamin A like compound which indicates antioxidant property. CONCLUSION Conclusively, fennel gave a promising result as a good wide spectrum antimicrobial agent because it contains some compounds act as antimicrobial agents such as eugenol which was used as food preservatives in addition to squalene which acts as an antioxidant and antimycotic agent so, it will be useful especially while it was used in highly purified form excluding all undesirable subcomponents.
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Affiliation(s)
- Waleed Bakry Suleiman
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, The Permanent Camp St., 6th Ward, P.B. 13759, Nasr City, Cairo, Egypt.
- Faculty of Advanced Science and Technology, Kumamoto University, Kurokami 2-3-91, Kumamoto, 860-8555, Japan.
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Abstract
India has a very high incidence of poisoning. While most cases are due to chemicals or drugs or envenomation by venomous creatures, a significant proportion also results from consumption or exposure to toxic plants or plant parts or products. The exact nature of plant poisoning varies from region to region, but certain plants are almost ubiquitous in distribution, and among these, Oleander and Datura are the prime examples. These plants are commonly encountered in almost all parts of India. While one is a wild shrub (Datura) that proliferates in the countryside and by roadsides, and the other (Oleander) is a garden plant that features in many homes. Incidents of poisoning from these plants are therefore not uncommon and may be the result of accidental exposure or deliberate, suicidal ingestion of the toxic parts. An attempt has been made to review the management principles with regard to toxicity of these plants and survey the literature in order to highlight current concepts in the treatment of poisoning resulting from both plants.
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Affiliation(s)
- Vijay V Pillay
- Department of Forensic Medicine and Toxicology, Poison Control Centre, Amrita School of Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - Anu Sasidharan
- Department of Forensic Medicine and Toxicology, Forensic Pathology Unit, Amrita School of Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
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Dey P, Dutta S, Biswas-Raha A, Sarkar MP, Chaudhuri TK. Haloalkane induced hepatic insult in murine model: amelioration by Oleander through antioxidant and anti-inflammatory activities, an in vitro and in vivo study. Altern Ther Health Med 2016; 16:280. [PMID: 27516209 PMCID: PMC4982413 DOI: 10.1186/s12906-016-1260-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 08/05/2016] [Indexed: 12/23/2022]
Abstract
BACKGROUND Nerium oleander L. (syn. Nerium indicum Mill, Nerium odorum Aiton) belongs to the family Apocynaceae. It is used for its anti-inflammatory, anti-diabetic, anti-cancer and hepatoprotective activities in traditional medicine. Previous pharmacognostic studies suggested that 70 % hydro-methanolic extracts of oleander possess potent free radical scavenging and anti-inflammatory activities, both of which are helpful against hepatotoxicity. METHODS Hydro-methanolic extracts of oleander stem and root were evaluated for their hepatoprotective activities in acute CCl4 intoxicated mouse through in vitro and in vivo studies. Silymarin was used as positive reference. Antioxidant enzymes, pro-inflammatory markers and liver enzymatic and biochemical parameters were studied. The extracts were further chemically characterized using Fourier Transform Infrared (FTIR) spectroscopy and Gas chromatography-mass spectrometry (GC-MS). RESULTS CCl4 toxicity caused fatty liver formation by increase of relative liver weight (32.53 g) compared to control group (16.08 g). The elevated liver enzymatic and biochemical parameters due to CCl4 toxicity were considerably normalized by the extracts treatment under both in vivo and in vitro models. Oleander stem (NOSE) and root (NORE) extracts increased the reduced hepatic catalase activity 27.37 and 25.25 %, whereas peroxidase activity was increased 18.19 and 22.78 %, respectively. The extent of lipid peroxidation was significantly (p < 0.01) lowered 20.76 % (NOSE) and 21.12 % (NORE) compared to CCl4 group. The levels of pro-inflammatory tumor necrosis factor-α (TNF-α) was lowered 71.33 % (NOSE) and 61.60 % (NORE). Histopathological study demonstrated substantial reduction of hepatocellular necrosis, fatty infiltration, sinusoidal dilation, bile duct proliferation, vascular congestion, leukocyte infiltration in the silymarin and extract treated groups. Furthermore, various bioactive compounds were identified in the extracts such as apocynin, tocopherol, squalene, vanillin, isoeugenol, amyrin, lupeol etc. CONCLUSION The present study provided convincing evidence that oleander extracts possess potent hepatoprotective capacity which was primarily governed by its antioxidant and anti-inflammatory activities. The collegial bioactivities of the phytochemicals may be accredited behind the hepatoprotective activity of oleander.
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Dey P, Saha MR, Chowdhuri SR, Sen A, Sarkar MP, Haldar B, Chaudhuri TK. Assessment of anti-diabetic activity of an ethnopharmacological plant Nerium oleander through alloxan induced diabetes in mice. J Ethnopharmacol 2015; 161:128-137. [PMID: 25498854 DOI: 10.1016/j.jep.2014.12.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [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: 06/13/2014] [Revised: 11/09/2014] [Accepted: 12/05/2014] [Indexed: 06/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Nerium oleander L. (syn. Nerium indicum Mill. and Nerium odorum Aiton.) is used for its anti-diabetic properties in Pakistan, Algeria, Morocco and is also recognized in Ayurveda. The present study was undertaken to investigate the anti-diabetic capacity of a standardized hydromethanolic extract of Nerium oleander in alloxan induced diabetes in mice. MATERIALS AND METHODS Nerium oleander leaf extract (NOLE) was orally administered at 50 and 200mg/kg body weight (BW) dose to alloxanized mice (blood glucose >200mg/dl). After 20 consecutive days of treatment, various diabetic parameters were studied and compared with untreated mice. Furthermore, gas chromatography-mass spectrometry (GC-MS) and high performance liquid chromatography (HPLC) analysis was employed to reveal the phytochemical composition of the plant extract. RESULTS NOLE demonstrated antihyperglycaemic activity by reducing 73.79% blood glucose level after 20 days of treatment. Oral glucose tolerance test (OGTT) revealed increase in glucose tolerance as evident by 65.72% decrease in blood glucose in 3h post treatment. Percentage decrease in different liver marker enzymes were significant along with decrease in triglyceride and cholesterol levels, displaying potent antihyperlipidemic activity. Peroxidase and catalase activity in liver, kidney and skeletal muscle were significantly restored besides marked reduction in lipid peroxidation and normalization of hepatic glycogen level in the NOLE treated alloxanized mice. Different bioactive phytocompounds with potent anti-diabetic activity were identified by GC-MS and HPLC analysis. CONCLUSION The present investigation revealed that Nerium oleander possess potent anti-diabetic activity as claimed in different ethnopharmacological practices.
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Affiliation(s)
- Priyankar Dey
- Cellular Immunology Laboratory, Department of Zoology, University of North Bengal, Siliguri-734013, West Bengal, India.
| | - Manas Ranjan Saha
- Molecular Cytogenetics Laboratory, Department of Botany, University of North Bengal, Siliguri-734013, West Bengal, India.
| | - Sumedha Roy Chowdhuri
- Chemical Signal and Lipidomics Laboratory, Department of Botany, University of Calcutta, Kolkata 700019, India.
| | - Arnab Sen
- Molecular Cytogenetics Laboratory, Department of Botany, University of North Bengal, Siliguri-734013, West Bengal, India.
| | - Mousumi Poddar Sarkar
- Chemical Signal and Lipidomics Laboratory, Department of Botany, University of Calcutta, Kolkata 700019, India.
| | - Biswajit Haldar
- Department of Pathology, North Bengal Medical College, West Bengal, India.
| | - Tapas Kumar Chaudhuri
- Cellular Immunology Laboratory, Department of Zoology, University of North Bengal, Siliguri-734013, West Bengal, India.
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