In the 4th edition of the European Pharmacopoeia, animal experiments are described, which are required for the quality control of pharmaceuticals. This refers to investigations regarding both biological activity and safety aspects of the medication. The latter include investigations to find contaminations with histamine and pyrogenic substances and tests for abnormal toxicity. Even though the safety of medical drugs is of great importance, it should be examined whether these tests are still indispensable (in terms of paragraph sign 7 of the German Animal Protection Law of 2002). The determination of histamine content may also be possible by chemical-analytical methods, which could represent an alternative to the animal experiment. The testing of abnormal toxicity should be scientifically questioned due to its lack of specificity. Although the in vitro test detecting bacterial endotoxins is mentioned in many monographs, the in vivo test on rabbits to test for pyrogenicity is still mentioned in some other monographs. The in vivo test should be rechallenged as to whether it can be replaced. In light of the global trade in pharmaceuticals, which must also fulfill national quality standards a reduction in animal experiments can only be reached by fruitful cooperation between pharmaceutical companies, health authorities and the commissions of the pharmacopoeias, leading to the formation of a consensus. The International Conference on Harmonization could prove an auspicious panel to take up this subject and to contribute to an internationally accepted and scientifically based reduction of animal experiments.
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PLoS One
January 2025
Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.
Pre-established anaesthetic protocols in animal models might unexpectedly interfere with the main outcome of scientific projects and therefore they need to account for the specific research goals. We aimed to optimize the anaesthetic protocol and animal handling strategies in a diabetes-related-study exemplifying how the anaesthetic approach must be adjusted for individual research targets. Aachen minipigs were used as a model to test long-lasting skin glucose sensors for diabetic human patients.
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Department of Nephrology, the First Affiliated Hospital of Bengbu Medical University, No. 287, Changhuai Road, Longzihu District, Bengbu, 233000, Anhui Province, China.
Primary membranous nephropathy (PMN) is a prevalent renal disorder characterized by immune-mediated damage to the glomerular basement membrane, with recent studies highlighting the significant role of pyroptosis in its progression. In this study, we investigate the molecular mechanisms underlying PMN, focusing on the role of Tumor necrosis factor receptor-associated factor 6 (TRAF6) in promoting disease advancement. Specifically, we examine how TRAF6 facilitates PMN progression by inducing the ubiquitination of Transforming growth factor-beta-activated kinase 1 (TAK1), which in turn activates the Gasdermin D (GSDMD)/Caspase-1 axis, leading to podocyte pyroptosis.
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MOE Key Laboratory of Gene Function and Regulation, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, 510275, Guangdong, China.
Β-thalassemia is one of the global health burdens. The CD41-42 (-TCTT) mutation at HBB is the most prevalent pathogenic mutation of β-thalassemia in both China and Southeast Asia. Previous studies focused on repairing the HBB CD41-42 (-TCTT) mutation in β-thalassemia patient-specific induced pluripotent stem cells, which were subsequently differentiated into hematopoietic stem and progenitor cells (HSPCs) for transplantation.
View Article and Find Full Text PDFCurr Pain Headache Rep
January 2025
Department of Physical Medicine & Rehabilitation, Temple University Hospital, Philadelphia, PA, USA.
Objectives: This study aims to review the societal, economic, and racial factors that impact the usage of spinal cord stimulation for chronic pain. Our working hypothesis is that patients of ethnic minority groups or of lower socioeconomic status (SES) status may have lower implantation rates and usage of spinal cord stimulation (SCS).
Materials And Methods: Our study sourced publications from PubMed, Embase, and Cochrane Library on December 21st, 2023 for SCS for the purposes of pain management.
Neurochem Res
January 2025
Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China.
Subarachnoid hemorrhage (SAH) is a type of hemorrhagic stroke with high morbidity, mortality and disability, and early brain injury (EBI) after SAH is crucial for prognosis. Recently, stem cell therapy has garnered significant attention in the treatment of neurological diseases. Compared to other stem cells, dental pulp stem cells (DPSCs) possess several advantages, including abundant sources, absence of ethical concerns, non-invasive procurement, non-tumorigenic history and neuroprotective potential.
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