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Machine learning applications in stroke medicine:advancements,challenges,and future prospectives

Neural Regeneration Research 2024年第4期19卷 769-773页

作者： Mario Daidone Sergio Ferrantelli Antonino Tuttolomondo internal medicine and Stroke Care Ward Department of Health PromotionMother and Child CareInternal Medicine and Medical SpecialtiesUniversity of Palermo molecular and Clinical medicine PhD Program University of Palermo

Stroke is a leading cause of disability and mortality worldwide,necessitating the development of advanced technologies to improve its diagnosis,treatment,and patient outcomes.In recent years,machine learning techniques have emerged as promising tools in stroke medicine,enabling efficient analysis of large-scale datasets and facilitating personalized and precision medicine approaches.This abstract provides a comprehensive overview of machine learning’s applications,challenges,and future directions in stroke medicine.Recently introduced machine learning algorithms have been extensively employed in all the fields of stroke medicine.Machine learning models have demonstrated remarkable accuracy in imaging analysis,diagnosing stroke subtypes,risk stratifications,guiding medical treatment,and predicting patient prognosis.Despite the tremendous potential of machine learning in stroke medicine,several challenges must be addressed.These include the need for standardized and interoperable data collection,robust model validation and generalization,and the ethical considerations surrounding privacy and bias.In addition,integrating machine learning models into clinical workflows and establishing regulatory frameworks are critical for ensuring their widespread adoption and impact in routine stroke care.Machine learning promises to revolutionize stroke medicine by enabling precise diagnosis,tailored treatment selection,and improved prognostication.Continued research and collaboration among clinicians,researchers,and technologists are essential for overcoming challenges and realizing the full potential of machine learning in stroke care,ultimately leading to enhanced patient outcomes and quality of life.This review aims to summarize all the current implications of machine learning in stroke diagnosis,treatment,and prognostic evaluation.At the same time,another purpose of this paper is to explore all the future perspectives these techniques can provide in combating this disabling disease.

关键词： cerebrovascular disease deep learning machine learning reinforcement learning stroke stroke therapy supervised learning unsupervised learning

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SCFD1 in amyotrophic lateral sclerosis: reconciling a genetic association with in vivo functional analysis

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Neural Regeneration Research 2024年第6期19卷 1201-1202页

作者： Ruben J.Cauchi Centre for molecular medicine and Biobanking Biomedical Sciences BuildingDepartment of Physiology and Biochemistry Faculty of Medicine and Surgery University of Malta

Amyotrophic lateral sclerosis(ALS) is a neurodegenerative disease characterized by progressive loss of upper and lower motor neurons,resulting in muscle weakness and spasticity,eventually leading to death due to respiratory failure.Analyses by our group of a casecontrol cohort from an isolated island population have found that genetics plays a significant role in disease etiology(Farrugia Wismayer et al.,2023).

关键词： PROTEIN SLY1

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Enhancement of endogenous midbrain neurogenesis by microneurotrophin BNN-20 after neural progenitor grafting in a mouse model of nigral degeneration

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Neural Regeneration Research 2024年第6期19卷 1318-1324页

作者： Theodora Mourtzi Nasia Antoniou Christina Dimitriou Panagiotis Gkaravelas Georgia Athanasopoulou Panagiota Nti Kostantzo Olga Stathi Efthymia Theodorou Maria Anesti Rebecca Matsas Fevronia Angelatou Georgia Kouroupi Ilias Kazanis Laboratory of Developmental Biology Department of Biology University of Patras Laboratory of Cellular and molecular Neurobiology-Stem Cells Hellenic Pasteur Institute 3. Department of Physiology School of Medicine University of Patras

We have previously shown the neuroprotective and pro-neurogenic activity of microneurotrophin BNN-20 in the substantia nigra of the “weaver” mouse, a model of progressive nigrostriatal degeneration. Here, we extended our investigation in two clinically-relevant ways. First, we assessed the effects of BNN-20 on human induced pluripotent stem cell-derived neural progenitor cells and neurons derived from healthy and parkinsonian donors. Second, we assessed if BNN-20 can boost the outcome of mouse neural progenitor cell intranigral transplantations in weaver mice, at late stages of degeneration. We found that BNN-20 has limited direct effects on cultured human induced pluripotent stem cell-derived neural progenitor cells, marginally enhancing their differentiation towards neurons and partially reversing the pathological phenotype of dopaminergic neurons generated from parkinsonian donors. In agreement, we found no effects of BNN-20 on the mouse neural progenitor cells grafted in the substantia nigra of weaver mice. However, the graft strongly induced an endogenous neurogenic response throughout the midbrain, which was significantly enhanced by the administration of microneurotrophin BNN-20. Our results provide straightforward evidence of the existence of an endogenous midbrain neurogenic system that can be specifically strengthened by BNN-20. Interestingly, the lack of major similar activity on cultured human induced pluripotent stem cell-derived neural progenitors and their progeny reveals the in vivo specificity of the aforementioned pro-neurogenic effect.

关键词： adult neurogenesis BNN-20 brain-derived neurotrophic factor cell replacement induced pluripotent stem cells (iPSCs) neurotrophic factors Parkinson's disease substantia

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The value of the INFECTIONS scoring system in identifying bacterial infections among patients presenting at the emergency department of a middle-income country:A pilot study

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Chinese Journal of Traumatology 2024年第2期27卷 77-82页

作者： Dooshanveer C.Nuckchady Department of internal medicine Victoria HospitalCandosMauritius

Purpose:To investigate which scoring system is the most accurate tool in predicting mortality among the infected patients who present to the emergency department in a middle-income country,and to validate a new scoring system to predict bacterial infections.Methods:This was a retrospective,single-center study among patients who were admitted via the emergency department of a public hospital.All patients who were started on antibiotics were included in the study,while patients agedphysiology score had the highest AUROC(≥0.89)for predicting mortality,while qSOFA and universal vital assessment were the simplest scoring systems with an AUROC>0.85;however,these scoring systems failed to predict whether patients were truly infected.The INFECTIONS(short for impaired mental status,not conscious,fast heart rate,elevated creatinine,high temperature,on inotrope,low oxygen,high neutrophils and high sugar)model reached an AUROC of 0.88 to more accurately predict the infectious state of a patient.Conclusions:Middle-income countries should use the qSOFA or universal vital assessment score to identify the sickest patients in emergency department.The INFECTIONS score may help recognize patients with bacterial infections,but it should be further validated in multiple countries prior to widely use.

关键词： Prognosis Mortality Bacterial infection INFECTIONS scoring system Sequential organ failure assessment Prediction

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Defined hydrogels for spinal cord organoids:challenges and potential applications

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Neural Regeneration Research 2024年第11期19卷 2329-2330页

作者： Wai Hon Chooi Yuewen Wu Shi-Yan Ng Institute of molecular and Cell Biology(IMCB) Agency for ScienceTechnology and Research(A*STAR)SingaporeSingapore Department of physiology Yong Loo Lin School of MedicineNational University of Singapore(NUS)SingaporeSingapore

Organoids of the central nervous system,primarily derived from pluripotent stem cells or neural stem cells,are three-dimensional tissue cultures with self-organizing properties.When exposed to the right combinations of signals,they differentiate into a 3D tissue consisting of complex cytoarchitecture and native cell types,including various neuron subtypes and glial cells.These features closely mimic native tissues,making them invaluable for developmental studies and disease modeling.In recent years,spinal cord organoids(SCOs)have been developed to investigate spinal cord development,injuries,and various neurological disorders.As an integral part of the central nervous system,SCOs play a vital role and serve as a site for studying both neurodevelopment and neurodegenerative diseases.

关键词： properties injuries primarily

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Gut microbiota-dependent phenylacetylglutamine in cardiovascular disease:current knowledge and new insights

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Frontiers of medicine 2024年第1期18卷 31-45页

作者： Yaonan Song Haoran Wei Zhitong Zhou Huiqing Wang Weijian Hang Junfang Wu Dao Wen Wang Division of Cardiology Department of Internal MedicineTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430030China Hubei Key Laboratory of Genetics and molecular Mechanisms of Cardiological Disorders Wuhan430030China

Phenylacetylglutamine(PAGln)is an amino acid derivate that comes from the amino acid phenylalanine.There are increasing studies showing that the level of PAGln is associated with the risk of different cardiovascular diseases.In this review,we discussed the metabolic pathway of PAGln production and the quantitative measurement methods of PAGln.We summarized the epidemiological evidence to show the role of PAGln in diagnostic and prognostic value in several cardiovascular diseases,such as heart failure,coronary heart disease/atherosclerosis,and cardiac arrhythmia.The underlying mechanism of PAGln is now considered to be related to the thrombotic potential of platelets via adrenergic receptors.Besides,other possible mechanisms such as inflammatory response and oxidative stress could also be induced by PAGln.Moreover,since PAGln is produced across different organs including the intestine,liver,and kidney,the cross-talk among multiple organs focused on the function of this uremic toxic metabolite.Finally,the prognostic value of PAGln compared to the classical biomarker was discussed and we also highlighted important gaps in knowledge and areas requiring future investigation of PAGln in cardiovascular diseases.

关键词： PAGln cardiovascular disease gut microbiota uremic metabolite biomarker

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lncRNA ZNF593-AS inhibits cardiac hypertrophy and myocardial remodeling by upregulating Mfn2 expression

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Frontiers of medicine 2024年第3期18卷 484-498页

作者： Xiang Nie Jiahui Fan Yanwen Wang Rong Xie Chen Chen Huaping Li Dao Wen Wang Division of Cardiology Department of Internal MedicineTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430030China Hubei Key Laboratory of Genetics and molecular Mechanisms of Cardiological Disorders Wuhan430030China

lncRNA ZNF593 antisense(ZNF593-AS)transcripts have been implicated in heart failure through the regulation of myocardial contractility.The decreased transcriptional activity of ZNF593-AS has also been detected in cardiac hypertrophy.However,the function of ZNF593-AS in cardiac hypertrophy remains unclear.Herein,we report that the expression of ZNF593-AS reduced in a mouse model of left ventricular hypertrophy and cardiomyocytes in response to treatment with the hypertrophic agonist phenylephrine(PE).In vivo,ZNF593-AS aggravated pressure overload–induced cardiac hypertrophy in knockout mice.By contrast,cardiomyocyte-specific transgenic mice(ZNF593-AS MHC-Tg)exhibited attenuated TAC-induced cardiac hypertrophy.In vitro,vector-based overexpression using murine or human ZNF593-AS alleviated PE-induced myocyte hypertrophy,whereas GapmeR-induced inhibition aggravated hypertrophic phenotypes.By using RNA-seq and gene set enrichment analyses,we identified a link between ZNF593-AS and oxidative phosphorylation and found that mitofusin 2(Mfn2)is a direct target of ZNF593-AS.ZNF593-AS exerts an antihypertrophic effect by upregulating Mfn2 expression and improving mitochondrial function.Therefore,it represents a promising therapeutic target for combating pathological cardiac remodeling.

关键词： lncRNA ZNF593-AS cardiac hypertrophy Mfn2 oxidative phosphorylation

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Pandemic punch:SARS-CoV-2 hits pancreas

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Signal Transduction and Targeted Therapy 2024年第5期9卷 1779-1780页

作者： Ninel Azoitei Sandra Heller Alexander Kleger Institute of molecular Oncology and Stem Cell Biology Ulm UniversityUlmGermany Division of Interdisciplinary Pancreatology Clinic of Internal Medicine IUniversity Hospital UlmUlmGermany

The COVID-19 pandemic has profoundly impacted global health systems,revealing the extensive repercussions of SARS-CoV-2 beyond respiratory symptoms.Indeed,traditionally considered a respiratory virus,SARS-CoV-2’s showcased the ability to target multiple organ systems including pancreas,an organ crucial for regulating blood sugar levels and aiding digestion.

关键词： pancreas respiratory traditionally

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Impact of tibial transverse transport in tissue regeneration and wound healing with perspective on diabetic foot ulcers

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World Journal of Diabetes 2024年第5期15卷 810-813页

作者： Sulagna Mukherjee Seung-Soon Im Department of physiology Keimyung University School of MedicineDaegu 42601Republic of Korea

In this editorial,we comment on an article by Liao et al published in the current issue of the World Journal of Diabetes.We focus on the clinical significance of tibial transverse transport(TTT)as an effective treatment for patients with diabetic foot ulcers(DFU).TTT has been associated with tissue regeneration,improved blood circulation,reduced amputation rates,and increased expression of early angiogenic factors.Mechanistically,TTT can influence macrophage polarization and growth factor upregulation.Despite this potential,the limitations and conflicting results of existing studies justify the need for further research into its optimal application and development.These clinical implications highlight the efficacy of TTT in recalcitrant DFU and provide lasting stimuli for tissue re-generation,and blood vessel and bone marrow improvement.Immunomodu-lation via systemic responses contributes to its therapeutic potential.Future studies should investigate the underlying molecular mechanisms to enhance our understanding and the efficacy of TTT.This manuscript emphasizes the potential of TTT in limb preservation and diabetic wound healing and suggests avenues for preventive measures against limb amputation in diabetes and peripheral artery disease.Here,we highlight the clinical significance of the TTT and its importance in healing DFU to promote the use of this technique in tissue regeneration.

关键词： Diabetes foot ulcer Tibial transverse transport Foot surgery Wound healing Tissue regeneration

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Functional characterization of Bmcap in uric acid metabolism in the silkworm

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Insect Science 2024年第1期31卷 147-156页

作者： Linmeng Tang Dehong Yang Zhiwei Liu Yaohui Wang Xu Yang Yujia Liu Dongbin Chen Zheng Tang Yongping Huang Key Laboratory of Insect Developmental and Evolutionary Biology Center for Excellence in Molecular Plant SciencesShanghai Institute of Plant Physiology and EcologyChinese Academy of SciencesShanghaiChina CAS Center for Excellence in Biotic Interactions University of Chinese Academy of SciencesBeijingChina Central Research Institute Shanghai Pharmaceuticals Holding Co.Ltd.ShanghaiChina departments of Neonatology International Peace Maternity and Child Health Hospital of China Welfare InstitutionSchool of MedicineShanghai Jiao Tong UniversityShanghaiChina

After a millennium of domestication,numerous silkworm mutants have emerged that exhibit transparent epidermis,which is caused by abnormally low levels of uric acid.We identified the Bombyx mori gene Bmcap(BMSK0003832)as the homolog of cappuccino,a subunit of the biogenesis of lysosome-related organelles complex-1(BLOC-1)that has been extensively characterized in human,mouse,and insect species,by analyzing the amino acid sequences of putative purine metabolism genes.Using the clustered regularly interspaced palindromic repeats(CRISPR)/CRISPR-associated protein 9 system,we disrupted Bmcap,resulting in decreased uric acid levels in the silkworm epidermis and a translucent skin phenotype.In the Bmcap mutant,the purine metabolism,nitrogen metabolism,pyrimidine metabolism,and membrane system were altered compared to the wild type.Biogenesis of lysosome-related organelle complex genes play a role in the pigmentation and biogenesis of lysosome-related organelles(LROs)in platelets,melanocytes,and megakaryocytes.LROs exhibit unique morphologies and functions in various tissues and cells.Investigation of the Bmcap mutant will enhance our understanding of the uric acid metabolic pathway in silkworms,and this mutant offers a valuable silkworm model for LRO studies.

关键词： BLOC-1 subunit Bombyx mori cappuccino translucent mutation uric acid

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