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Vonberg FW, Blain PG. Neurotoxicology: a clinical systems-based review. Pract Neurol 2024:pn-2023-003983. [PMID: 38849205 DOI: 10.1136/pn-2023-003983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/12/2024] [Indexed: 06/09/2024]
Abstract
Neurological disease caused by toxins is widespread but under-recognised. Despite increasing public interest and a growing number of novel potential neurotoxins, diagnosis of neurotoxic disease is often delayed or missed, resulting in poorer patient outcomes. This article discusses neurotoxic syndromes using a systems-based approach, focusing on environmental and occupational agents. We do not discuss recreational drugs, pharmaceutical agents or developmental neurotoxins in detail. We aim to provide neurologists with a working understanding of the scenarios in which a clinical presentation may be due to a neurotoxin and how to approach confirmation of the diagnosis.
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Affiliation(s)
| | - Peter G Blain
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
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Mondal S, Sabbir MHR, Islam MR, Ferdous MF, Hassan Mondol MM, Hossain MJ. Qualitative assessment of regular and premium gasoline available in Bangladesh markets. Heliyon 2024; 10:e29089. [PMID: 38601578 PMCID: PMC11004202 DOI: 10.1016/j.heliyon.2024.e29089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 03/14/2024] [Accepted: 03/29/2024] [Indexed: 04/12/2024] Open
Abstract
Assessing the quality of fuel is essential to comprehend its impact on the environment and human health. In this study, the evaluation of fuel quality standards at the consumer level was conducted by analyzing the motor fuels in Khulna, Bangladesh. A total of 32 samples of petrol (regular gasoline), and octane (premium gasoline) were collected from the fuel stations in the Khulna City Corporation area and analyzed with an FTIR-Fuel Analyzer. Fuel properties, such as research octane number (RON), motor octane number (MON), ethanol content, olefins content, and oxygen content were analyzed. For petrol, the average RON, MON, olefins, and oxygen content were 95.34, 85.70, 8.23 %v/v, and 0.78 %m/m, respectively, and for octane, they were 96.96, 85.39, 1.25 %v/v, and 0.09 %m/m, respectively. Almost all of these parameters complied with both Bangladesh standard and Euro 5 fuel specifications, and those that did not comply were very close to their standard values. However, benzene concentration, which was not specified in Bangladesh Standard, was the most alarming metric for octane since none of the samples matched the Euro 5 fuel specifications of the maximum concentration of 1 %v/v benzene; on average it was 3.70 %v/v. Although petrol benzene content (average 1.50 %v/v) was not as bad as it was for octane, it was still nowhere near good enough, with only 25% of the samples within the recommended level among the studied sample. This information holds significance in establishing the fuel profile and facilitating the identification of distinct samples linked to adulteration. Therefore, the analysis of motor fuel qualities is essential for maintaining the environment, human health, and the economy of a country.
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Affiliation(s)
- Shuvashish Mondal
- Department of Chemical Engineering, Khulna University of Engineering and Technology (KUET), Khulna, 9203, Bangladesh
| | - Md Hafijur Rahman Sabbir
- Department of Chemical Engineering, Khulna University of Engineering and Technology (KUET), Khulna, 9203, Bangladesh
| | - Md Rashedul Islam
- Department of Chemical Engineering, Khulna University of Engineering and Technology (KUET), Khulna, 9203, Bangladesh
| | - Md Faisal Ferdous
- Department of Chemical Engineering, Khulna University of Engineering and Technology (KUET), Khulna, 9203, Bangladesh
| | - Md Mahmudul Hassan Mondol
- Department of Chemical Engineering, Khulna University of Engineering and Technology (KUET), Khulna, 9203, Bangladesh
| | - Md Jahangir Hossain
- Department of Energy Science and Engineering, Khulna University of Engineering and Technology (KUET), Khulna, 9203, Bangladesh
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Jangjou A, Moqadas M, Mohsenian L, Kamyab H, Chelliapan S, Alshehery S, Ali MA, Dehbozorgi F, Yadav KK, Khorami M, Zarei Jelyani N. Awareness raising and dealing with methanol poisoning based on effective strategies. ENVIRONMENTAL RESEARCH 2023; 228:115886. [PMID: 37072082 DOI: 10.1016/j.envres.2023.115886] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 04/04/2023] [Accepted: 04/10/2023] [Indexed: 05/16/2023]
Abstract
Intoxication with methanol most commonly occurs as a consequence of ingesting, inhaling, or coming into contact with formulations that include methanol as a base. Clinical manifestations of methanol poisoning include suppression of the central nervous system, gastrointestinal symptoms, and decompensated metabolic acidosis, which is associated with impaired vision and either early or late blindness within 0.5-4 h after ingestion. After ingestion, methanol concentrations in the blood that are greater than 50 mg/dl should raise some concern. Ingested methanol is typically digested by alcohol dehydrogenase (ADH), and it is subsequently redistributed to the body's water to attain a volume distribution that is about equivalent to 0.77 L/kg. Moreover, it is removed from the body as its natural, unchanged parent molecules. Due to the fact that methanol poisoning is relatively uncommon but frequently involves a large number of victims at the same time, this type of incident occupies a special position in the field of clinical toxicology. The beginning of the COVID-19 pandemic has resulted in an increase in erroneous assumptions regarding the preventative capability of methanol in comparison to viral infection. More than 1000 Iranians fell ill, and more than 300 of them passed away in March of this year after they consumed methanol in the expectation that it would protect them from a new coronavirus. The Atlanta epidemic, which involved 323 individuals and resulted in the deaths of 41, is one example of mass poisoning. Another example is the Kristiansand outbreak, which involved 70 people and resulted in the deaths of three. In 2003, the AAPCC received reports of more than one thousand pediatric exposures. Since methanol poisoning is associated with high mortality rates, it is vital that the condition be addressed seriously and managed as quickly as feasible. The objective of this review was to raise awareness about the mechanism and metabolism of methanol toxicity, the introduction of therapeutic interventions such as gastrointestinal decontamination and methanol metabolism inhibition, the correction of metabolic disturbances, and the establishment of novel diagnostic/screening nanoparticle-based strategies for methanol poisoning such as the discovery of ADH inhibitors as well as the detection of the adulteration of alcoholic drinks by nanoparticles in order to prevent methanol poisoning. In conclusion, increasing warnings and knowledge about clinical manifestations, medical interventions, and novel strategies for methanol poisoning probably results in a decrease in the death load.
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Affiliation(s)
- Ali Jangjou
- Department of Emergency Medicine, School of Medicine, Namazi Teaching Hospital, Shiraz University of Medical Sciences, Shiraz, Iran; Emergency Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mostafa Moqadas
- Department of Emergency Medicine, School of Medicine, Namazi Teaching Hospital, Shiraz University of Medical Sciences, Shiraz, Iran; Emergency Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Leila Mohsenian
- Department of Emergency Medicine, School of Medicine, Namazi Teaching Hospital, Shiraz University of Medical Sciences, Shiraz, Iran; Emergency Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hesam Kamyab
- Faculty of Architecture and Urbanism, UTE University, Calle Rumipamba S/N and Bourgeois, Quito, Ecuador; Department of Biomaterials, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Chennai, 600 077, India; Process Systems Engineering Centre (PROSPECT), Faculty of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia.
| | - Shreeshivadasan Chelliapan
- Engineering Department, Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Jln Sultan Yahya Petra, 54100, Kuala Lumpur, Malaysia.
| | - Sultan Alshehery
- Department of Mechanical Engineering King Khalid University, zip code - 62217, Saudi Arabia
| | - Mohammed Azam Ali
- Department of Mechanical Engineering King Khalid University, zip code - 62217, Saudi Arabia
| | - Farbod Dehbozorgi
- Department of Emergency Medicine, School of Medicine, Namazi Teaching Hospital, Shiraz University of Medical Sciences, Shiraz, Iran; Emergency Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Krishna Kumar Yadav
- Faculty of Science and Technology, Madhyanchal Professional University, Ratibad, Bhopal, 462044, India; Environmental and Atmospheric Sciences Research Group, Scientific Research Center, Al-Ayen University, Thi-Qar, Nasiriyah, 64001, Iraq
| | - Masoud Khorami
- Department of Civil Engineering, Islamic Azad University, Central Tehran Branch, Tehran, Iran
| | - Najmeh Zarei Jelyani
- Department of Emergency Medicine, School of Medicine, Namazi Teaching Hospital, Shiraz University of Medical Sciences, Shiraz, Iran; Emergency Medicine Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
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Ghosh R, León-Ruiz M, Das S, Mandal A, Roy D, Benito-León J. Multifocal neuraxial involvement in acute methanol intoxication: A series of two patients from rural India. NEUROLOGY PERSPECTIVES 2023; 3:100114. [PMID: 36908756 PMCID: PMC9997756 DOI: 10.1016/j.neurop.2023.100114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- R Ghosh
- Department of General Medicine, Burdwan Medical College and
Hospital, Burdwan, West Bengal, India
| | - M. León-Ruiz
- Section of Clinical Neurophysiology, Department of
Neurology, University Hospital "La Paz", Madrid, Spain
| | - S. Das
- Department of Neuromedicine, Bangur Institute of
Neurosciences (BIN), Kolkata, West Bengal, India
| | - A. Mandal
- Department of General Medicine, Burdwan Medical College and
Hospital, Burdwan, West Bengal, India
| | - D. Roy
- Department of Biochemistry, All India Institute of Medical
Sciences (AIIMS), Patna, Bihar, India
- Indian Institute of Technology (IIT), Madras, Tamil Nadu,
India
- School of Sciences, Indira Gandhi National Open University,
New Delhi, India
| | - J. Benito-León
- Department of Neurology, University Hospital "12 de
Octubre", Madrid, Spain
- Department of Medicine, Complutense University, Madrid,
Spain
- Centro de Investigación Biomédica en Red
Sobre Enfermedades Neurodegenerativas (CIBERNED), Madrid, Spain
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Tomsia M, Głaz M, Nowicka J, Cieśla J, Sosnowski M, Chełmecka E. Fatal Methanol Poisoning Caused by Drinking Industrial Alcohol: Silesia Region, Poland, April-June 2022. TOXICS 2022; 10:800. [PMID: 36548633 PMCID: PMC9788088 DOI: 10.3390/toxics10120800] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/13/2022] [Accepted: 12/16/2022] [Indexed: 06/17/2023]
Abstract
Methanol poisonings caused by drinking industrial alcohol remain a severe problem worldwide. Education on types of alcohol and their harmfulness and legal regulations limiting the industrial alcohol trade seem to be the keys to reducing the number of poisonings. Methanol distribution in different tissues after absorption is not well understood. This research aimed to quantify the methanol and formic acid distribution in body fluids and tissue material in post-mortem samples collected from 19 fatal victims of massive intoxication with industrial alcohol in the Silesia Region (Poland) who died between April and June 2022. The samples were analyzed using a gas chromatography-flame ionization detector (GC-FID), and correlation coefficients for methanol and formic acid were determined. The results show a wide distribution of methanol and formic acid in human post-mortem biological fluids (blood, urine, vitreous humor, bile, and cerebrospinal fluid) and tissues (muscle, kidney, liver, spleen, lung, and brain). The strongest correlation for methanol concentration in blood and body fluids/tissues was obtained in the cerebrospinal fluid (r = 0.997) and for formic acid in muscle tissue (r = 0.931). The obtained results may be a valuable tool in toxicological analysis and improve medical standards of early diagnosis and targeted treatment.
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Affiliation(s)
- Marcin Tomsia
- Department of Forensic Medicine and Forensic Toxicology, Medical University of Silesia, 18 Medyków Street, 40-752 Katowice, Poland
| | - Małgorzata Głaz
- Department of Forensic Medicine and Forensic Toxicology, Medical University of Silesia, 18 Medyków Street, 40-752 Katowice, Poland
| | - Joanna Nowicka
- Department of Forensic Medicine and Forensic Toxicology, Medical University of Silesia, 18 Medyków Street, 40-752 Katowice, Poland
| | - Julia Cieśla
- Students Scientific Society, Medical University of Silesia, 18 Medyków Street, 40-752 Katowice, Poland
| | - Maciej Sosnowski
- Students Scientific Society, Medical University of Silesia, 18 Medyków Street, 40-752 Katowice, Poland
| | - Elżbieta Chełmecka
- Department of Statistics, Department of Instrumental Analysis, Faculty of Pharmaceutical Sciences, Medical University of Silesia, Ostrogórska 30, 41-200 Sosnowiec, Poland
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