Scorpion envenomation is a public health problem in several tropical and subtropical countries. Tityus serrulatus Lutz and Mello, 1922 (Brazilian yellow scorpion) are responsible for approximately 150,000 envenoming cases per year in Brazil, of which 10% require antivenom treatment to reverse life-threatening venom effects. Therefore, thousands of T. serrulatus individuals are maintained under controlled captivity conditions for venom extraction, subsequently used in the production of the national supply of scorpion antivenom. Instituto Butantan is the main antivenom-manufacturing laboratory in Brazil, providing about 70,000 vials of scorpion antivenom for the Brazilian health system. Thus, the husbandry protocols and venom extraction methodologies are key points for the success of large-scale, standardized venom production. The objective of this article is to describe the captivity protocols of T. serrulatus husbandry, encompassing the husbandry routine and the venom extraction procedures, following good manufacturing practices, and ensuring animal welfare. These practices allow for the maintenance of up to 20,000 animals in captivity, with a routine of 3,000 to 5,000 scorpions milked monthly according to antivenom manufacturing demand, achieving an average of 90% of positive extraction.
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http://dx.doi.org/10.3791/65737 | DOI Listing |
Ann Allergy Asthma Immunol
January 2025
Center for Drug Safety and Immunology, Vanderbilt University Medical Centre, Nashville, Tennessee, USA; Institute for Immunology and Infectious Diseases, Murdoch University, Murdoch, Western Australia, Australia.
Background: Donor acquired allergy (DAA) occurs when donors transfer their allergies to recipients through solid organ transplant (SOT). However, the risk of DAA in recipients of organs from allergic donors has not been systematically characterized.
Objective: We sought to synthesize the available evidence on the risk of DAA in SOT recipients.
Toxicon
January 2025
Laboratory of Pharmacology, Neurobiology, Anthropology and Environment, Department of Biology, Faculty of Sciences, Semlalia, University Cadi Ayyad, BP 2390-40080 Marrakech, Morocco.
Scorpion venom research aims to develop treatments for dangerous species and identify candidates for new drugs. The extraction of high-quality venom, which is essential, requires mastery of the extraction and maintenance of scorpions. It is in this perspective that we have undertaken this present work which aims to contribute to scientifically mastering venom yields and the factors that influence them in scorpions.
View Article and Find Full Text PDFBiology (Basel)
December 2024
Faculty of Basic Sciences, King Salman International University (KSIU), Ras Sudr 46612, South Sinai, Egypt.
Antimicrobial resistance (AMR) poses a critical global health threat, driving the search for alternative treatments to conventional antibiotics. In this study, the antibacterial properties of honeybee venom (BV) and fungal red dye (RD) were evaluated against three multidrug-resistant bacterial pathogens. Extracts of BV and RD exhibited dose-dependent antibacterial activity against the three tested bacteria, with their strongest effectiveness against (minimum inhibitory concentrations [MIC] = 3.
View Article and Find Full Text PDFToxins (Basel)
January 2025
Department of Experimental Pathology, Federal University of São João del-Rei, Divinópolis 36301-158, Brazil.
The discovery of novel cytotoxic drugs is of paramount importance in contemporary medical research, particularly in the search for treatments with fewer side effects and higher specificity. Antimicrobial peptides are an interesting class of molecules for this endeavor. In this context, the LyeTx III, a new peptide extracted from the venom of the spider, stands out.
View Article and Find Full Text PDFZhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
December 2024
Mongolian Medical College, Inner Mongolia Minzu University; National Medical Products Administration Key Laboratory of Quality Control of Traditional Chinese Medicine (Mongolian Medicine), Tongliao, Inner Mongolia 028043, China.
Scorpion venom is a highly complicated cocktail of bioactive components including mucoproteins, enzymes, lipids, bioactive peptides, and other organic or inorganic molecules. Scorpion venom antimicrobial peptides are a class of small-molecule bioactive peptides extracted from scorpion venoms, which have shown a variety of biological activities, including antiviral, antibacterial, antifungal and antitumor actions. This review describes the progress of researches on the antiparasitic activities of scorpion venoms and their antimicrobial peptides, so as to provide insights into the research and development of novel antiparasitic agents.
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