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Treatment of spinal cord injury with biomaterials and stem cell therapy in non-human primates and humans

Neural Regeneration Research 2025年第2期20卷 343-353页

作者： Ana Milena Silva Olaya Fernanda Martins Almeida Ana Maria Blanco Martinez Suelen Adriani Marques PhD Program in Pathological Anatomy Federal University of Rio de JaneiroRio de JaneiroBrazil Biomedical Science Institute Federal University of Rio de JaneiroRio de JaneiroBrazil Graduate Program in Pathological Anatomy Federal University of Rio de JaneiroRio de JaneiroBrazil Graduate Program in Pathological Anatomy(PPGAP/UFRJ) Department of Neurobiology/Institute of BiologyCampus do GragoatáNiteróiRio de JaneiroBrazil

Spinal cord injury results in the loss of sensory,motor,and autonomic functions,which almost always produces permanent physical ***,in the search for more effective treatments than those already applied for years,which are not entirely efficient,researches have been able to demonstrate the potential of biological strategies using biomaterials to tissue manufacturing through bioengineering and stem cell therapy as a neuroregenerative approach,seeking to promote neuronal recovery after spinal cord *** of these strategies has been developed and meticulously evaluated in several animal models with the aim of analyzing the potential of interventions for neuronal repair and,consequently,boosting functional *** the majority of experimental research has been conducted in rodents,there is increasing recognition of the importance,and need,of evaluating the safety and efficacy of these interventions in non-human primates before moving to clinical trials involving therapies potentially promising in *** article is a literature review from databases(PubMed,Science Direct,Elsevier,Scielo,Redalyc,Cochrane,and NCBI)from 10 years ago to date,using keywords(spinal cord injury,cell therapy,non-human primates,humans,and bioengineering in spinal cord injury).From 110 retrieved articles,after two selection rounds based on inclusion and exclusion criteria,21 articles were ***,this review arises from the need to recognize the experimental therapeutic advances applied in non-human primates and even humans,aimed at deepening these strategies and identifying the advantages and influence of the results on extrapolation for clinical applicability in humans.

关键词： bioengineering biomaterials cell therapy humans non-human primates spinal cord injury stem cell therapy

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Brain scarring in infants:immunological insights from a neonatal hypoxic-ischemic encephalopathy model

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Neural Regeneration Research 2025年第10期20卷 2909-2910页

作者： Pedro Moreno Pimentel-Coelho Carlos Chagas Filho Biophysics Institute Federal University of Rio de JaneiroRio de JaneiroBrazil

Neonatal hypoxic-ischemic encephalopathy(HIE)is a significant cause of disability in *** brain function and accelerating neurological recovery may require a combination of neuroprotective and pro-regenerative treatments at different stages of *** the first hours after the neonatal insult are the most critical period for neuroprotection,the existence of secondary and tertiary mechanisms of brain injury offers the possibility of preventing delayed neurodegeneration in the subsequent days,weeks,or months(Levison et al.,2022).

关键词： neonatal protective hypoxic

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Impact of Zika virus non-structural protein mutations on hippocampal damage

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Neural Regeneration Research 2025年第8期20卷 2307-2308页

作者： Larissa M.G.Cassiano Roney S.Coimbra Neurogenômica/Imunopatologia Instituto RenéRachouFiocruzBelo HorizonteBrazil departamento de Bioquímica e Imunologia Instituto de Ciências BiológicasUniversidade Federal de Minas GeraisBelo HorizonteBrazil

The Zika virus(ZIKV),a member of the Flaviviridae family,attracted worldwide attention for its connection to severe neurological effects,notably microcephaly in newborns,first reported during the 2015 epidemic in ***,its impact goes beyond fetal and neonatal abnormalities,also affecting the central nervous system(CNS)in both children and adults,leading to enduring cognitive and behavioral impairments.

关键词： damage fetal neonatal

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design and redesign journey of a drug for transthyretin amyloidosis

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Neural Regeneration Research 2025年第4期20卷 1096-1097页

作者： Francisca Pinheiro Salvador Ventura Institut de Biotecnologia i Biomedicina Departament de Bioquímica i Biologia MolecularUniversitat Autònoma de BarcelonaBellaterraSpain

The misfolding and subsequent aggregation of proteins into amyloid fibrils underlie the onset of a variety of human disorders collectively known as ***(TTR)is one of the>30 amyloidogenic proteins identified to date and is associated with a group of highly debilitating and life-threatening disorders called TTR amyloidosis(ATTR).ATTR comprises senile systemic amyloidosis,which is linked to wild-type(WT)TTR aggregation,and hereditary ATTR,a dominantly inherited disorder caused by the deposition of one of over 130 TTR genetic *** systemic amyloidosis is a prevalent age-related amyloidosis,affecting up to 25%of the population over 80 years of age,and is characterized by the build-up of TTR fibrils in the *** hereditary ATTR,the clinical presentation is highly heterogeneous,primarily affecting the peripheral nervous system(familial amyloid polyneuropathy-FAP)or the heart(familial amyloid cardiomyopathy).In rare cases,aggregation develops in the central nervous system,giving rise to a phenotype known as familial leptomeningeal amyloidosis(Carroll et al.,2022).

关键词： amyloid aggregation senile

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Complementary roles of glial cells in generating region-specific neuroinflammatory responses and phagocytosis in Parkinson’s disease

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Neural Regeneration Research 2025年第10期20卷 2917-2918页

作者： Leyre Ayerra Maria S.Aymerich Universidad de Navarra Facultad de CienciasDepartamento de Bioquímica y GenéticaPamplonaSpain CIMA-Universidad de Navarra PamplonaSpain IdiSNA Instituto de Investigación Sanitaria de NavarraPamplonaSpain

Neuroinflammation is associated with Parkinson’s disease:Reactive gliosis and neuroinflammation are hallmarks of Parkinson’s disease(PD),a multisystem neurodegenerative disorder characterized by a progressive loss of dopaminergic *** has long been considered a mere consequence of neuronal loss,but whether it promotes PD or is a key player in disease progression remains to be *** leukocyte antigen.

关键词： inflammation leukocyte generating

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dendritic spine degeneration:a primary mechanism in the aging process

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Neural Regeneration Research 2025年第6期20卷 1696-1698页

作者： Gonzalo Flores Leonardo Aguilar-Hernández Fernado García-Dolores Humberto Nicolini Andrea Judith Vázquez-Hernández Hiram Tendilla-Beltrán Instituto de Fisiología Benemérita Universidad Autónoma de Puebla(BUAP)PueblaMexico Instituto de Ciencias Forenses(INCIFO) Tribunal Superior de Justicia de la Ciudad de México(TSJCDMX).Mexico CityMexico Instituto Nacional de Medicina Genómica(INMEGEN) Mexico CityMexico

Recent reports suggest that aging is not solely a physiological process in living beings;instead, it should be considered a pathological process or disease(Amorim et al., 2022). Consequently, this process involves a wide range of factors, spanning from genetic to environmental factors, and even includes the gut microbiome(GM)(Mayer et al., 2022). All these processes coincide at some point in the inflammatory process, oxidative stress, and apoptosis, at different degrees in various organs and systems that constitute a living organism(Mayer et al., 2022;AguilarHernández et al., 2023).

关键词： aging process stress

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Chemical profile and antimicrobial activity of Secondatia floribunda A. DC(Apocynaceae)

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Asian Pacific Journal of Tropical Biomedicine 2017年第8期7卷 739-749页

作者： Daiany Alves Ribeiro Sarah Soares Damasceno Aline Augusti Boligon Irwin Rose Alencar de Menezes Marta Maria de Almeida Souza JoséGalberto Martins da Costa Programa de Pós-Graduacao em Etnobiologia e Conservacao da Natureza Universidade Regional do Cariri departamento de química Biológica Laboratório de Pesquisas de Produtos NaturaisUniversidade Regional do Cariri laboratório de Fitoquímica Universidade Federal de Santa Maria departamento de química Biológica Laboratório de Farmacologia e Química MolecularUniversidade Regional do Cariri departamento de Ciências Biológicas Laboratório de Ecologia VegetalUniversidade Regional do Cariri

To establish the chemical profile, and to evaluate the antibacterial and modulatory activity of the ethanolic extracts of the stalk’s inner bark and heartwood of Secondatia *** of total phenols and flavonoids was determined by the Folin-Ciocalteu method and aluminum chloride, respectively. Phenolic compounds were identified and quantified by HPLC-DAD (High Performance Liquid Chromatography-Diodearray detector) and the Infrared Spectroscopy was performed using the measure by Attenuated Total Reflectance with Fourier Transform (ATR-FTIR). Antibacterial assays for determination of the Minimum Inhibitory Concentration (MIC) and modification of aminoglycosides were performed by *** spectra showed similar characteristics, having among its main absorption bands hydroxyl group (OH). The antibacterial activity showed clinically significant results for the strains of Staphylococcus aureus and Escherichia coli. In modulation assay, synergic and antagonistic effect for both extracts was observed. Heartwood extract in combination with antibiotics showed a significant MIC reduction at 19.8% (P mical and biological information of Secondatia floribunda suggesting that it is clinically relevant source of a new antibacterial therapy, especially due to the presence of significant levels of phenolic compounds.

关键词： Chemical composition HPLC Cinchonain Natural product Modification resistance

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Glutamine is highly effective in preventing in vivo cobalt-induced oxidative stress in rat liver

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World Journal of Gastroenterology 2005年第23期11卷 3533-3538页

作者： Soledad Gonzales Ariel H.Polizio María A.Erario María L.Tomaro departamento de química Biológica

AIM: To evaluate the in vivo effect of glutamine on cobaltgenerated oxidative stress and (HO-1) induction in rat ***: Fasted female Wistar rats received a single injection of cobalt chloride (375 μmol/kg body weight) and then were killed at different times. Lipid peroxidation and soluble and enzymatic antioxidant defense system (reduced glutathione (GSH), catalase (CAT), glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD)) were measured in liver homogenates. Ferritin and ferritin iron contents as well as heme oxygenase-1 (HO-1) activity and expression were also determined. The antioxidant properties of glutamine (Gin) were also evaluated. RESULTS: Cobalt chloride increased lipid peroxidation (50% over control values) 1 h after treatment. GSH reached a minimum at 3 h (40%) increasing thereafter. Twelve hours after CoCl2 injection, the antioxidant enzymes CAT, GSH-Px and SOD also diminished by about 30%. Heme oxygenase-1 induction was observed 6 h after treatment reaching a maximum value of 14-fold over the controls, 12 h after cobalt treatment. A 1.7-fold increase in ferritin and ferritin-bound iron 24 h after treatment were also obtained. Administration of glutamine (300 mg/kg body weight) by gavage 24 h before CoCl2 treatment entirely prevented the increase in thiobarbituric acid reactive substances (TBARS) content, the decrease in GSH levels, and partially reverted heme oxygenase-1 induction. CONCLUSION: These results suggested that a natural product such as glutamine prevents glutathione depletion and consequently heme oxygenase induction.

关键词： Oxidative stress Heme oxygenase Glutathione Glutamine Iron Liver

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Transformation of leather waste into microwave-activated and N-doped carbon for Li-S batteries

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新型炭材料(中英文) 2025年

作者： Carolina Pano-Azucena Roberto Rosas-Rangel Miguel Olvera-Sosa David Salvador González-González Rene Rangel-Mendez Luis Felipe Chazaro-Ruiz Miguel Avalos-Borja Javier Antonio Arcibar-Orozco CIATEC.Center for Applied Innovation in Competitive Technologies Tecnologico de Monterrey School of Engineering and Sciences Instituto Potosino de Investigación Científica y Tecnológica Universidad Autónoma de Coahuila Facultad de SistemasCiudad Universitaria

The use of carbon from waste biomass has the potential to buffer the drawbacks of Li-S batteries and improve their overall performance. Chrome-Tanned-LeatherShavings(CTLS) are undesirable wastes, highly available for transformation into porous carbon. Microwave activation is an efficient state-of-the-art procedure to obtain unique porous structures and nitrogen incorporation can improve the performance of porous carbons. This study proposes the transformation of CTLS into a microwave activated porous carbon, and then was modified to introduce nitrogen. A microporous activated carbon with a specific surface area of 556 m2g-1 with honeycomb-like structure was obtained. Both urea thermal decomposition and ethanolamine impregnation improves the nitrogen and amine presence of surface groups. However,the results indicated that only urea treatment was effective in improving the initial capacity of the cell(1363 mAhg-1), which is probably linked with the sorption of long-chain polysulfides. This investigation confirms that it is possible to obtain carbon materials from CTLS, for use as sulfur-host cathodes in Li-S batteries, and improve their performance with urea thermal decomposition. Furthermore, a Radial basis function neural network was fitted to provide statistical support to the experimental results. The trained model corroborated the importance of nitrogen content of the carbons in the discharge capacity of the cells.

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Beyond neurodegeneration:engineering amyloids for biocatalysis

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Neural Regeneration Research 2025年第10期20卷 2915-2916页

作者： Andrea Bartolomé-Nafría Javier García-Pardo Salvador Ventura Institut de Biotecnologia i de Biomedicina(IBB)and departament de Bioquímica i Biologia Molecular Universitat Autònoma de BarcelonaBellaterraBarcelonaSpain Hospital Universitari Parc Taulí Institut d’Investigaciói InnovacióParc Taulí(I3PT-CERCA)Universitat Autònoma de BarcelonaSabadellSpain

Amyloid fibrils are highly organized protein or peptide aggregates,often characterized by a distinctive supramolecular cross-β-sheet *** formation and accumulation of these structures have been traditionally associated with neural or systemic human diseases,such as Alzheimer’s disease,Parkinson’s disease,type-2 diabetes,or amyotrophic lateral sclerosis(Wei et al.,2017;Wittung-Stafshede,2023).

关键词： structure amyloid

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