This comprehensive review explores the intricate relationship between nutrition,the gut microbiome,steroid hormones,and Parkinson's disease within the context of the gut-brain axis.The gut-brain axis plays a pivot...This comprehensive review explores the intricate relationship between nutrition,the gut microbiome,steroid hormones,and Parkinson's disease within the context of the gut-brain axis.The gut-brain axis plays a pivotal role in neurodegenerative diseases like Parkinson's disease,encompassing diverse components such as the gut microbiota,immune system,metabolism,and neural pathways.The gut microbiome,profoundly influenced by dietary factors,emerges as a key player.Nutrition during the first 1000 days of life shapes the gut microbiota composition,influencing immune responses and impacting both child development and adult health.High-fat,high-sugar diets can disrupt this delicate balance,contributing to inflammation and immune dysfunction.Exploring nutritional strategies,the Mediterranean diet's anti-inflammatory and antioxidant properties show promise in reducing Parkinson's disease risk.Microbiome-targeted dietary approaches and the ketogenic diet hold the potential in improving brain disorders.Beyond nutrition,emerging research uncovers potential interactions between steroid hormones,nutrition,and Parkinson's disease.Progesterone,with its anti-inflammatory properties and presence in the nervous system,offers a novel option for Parkinson's disease therapy.Its ability to enhance neuroprotection within the enteric nervous system presents exciting prospects.The review addresses the hypothesis thatα-synuclein aggregates originate from the gut and may enter the brain via the vagus nerve.Gastrointestinal symptoms preceding motor symptoms support this hypothesis.Dysfunctional gut-brain signaling during gut dysbiosis contributes to inflammation and neurotransmitter imbalances,emphasizing the potential of microbiota-based interventions.In summary,this review uncovers the complex web of interactions between nutrition,the gut microbiome,steroid hormones,and Parkinson's disease within the gut-brain axis framework.Understanding these connections not only offers novel therapeutic insights but also illuminates the origins of neurodegenerative diseases such as Parkinson's disease.展开更多
Plasticity of cerebellar Purkinje cells(PC)is influenced by progeste rone via the classical progeste rone receptors PR-A and PR-B by stimulating dendritogenesis,spinogenesis,and synaptogenesis in these cells.Dissociat...Plasticity of cerebellar Purkinje cells(PC)is influenced by progeste rone via the classical progeste rone receptors PR-A and PR-B by stimulating dendritogenesis,spinogenesis,and synaptogenesis in these cells.Dissociated PC cultures were used to analyze progeste rone effects at a molecular level on the voltage-gated T-type-Ca^(2+)-channels Ca_(v)3.1,Ca_(v)3.2,and Ca_(v)3.3 as they helped determine neuronal plasticity by regulating Ca^(2+)-influx in neuronal cells.The results showed direct effects of progesterone on the mRNA expression of T-type-Ca^(2+)-channels,as well as on the protein kinases A and C being involved in downstream signaling pathways that play an important role in neuronal plasticity.For the mRNA expression studies of T-type-Ca^(2+)-channels and protein kinases of the signaling cascade,laser microdissection and purified PC cultures of diffe rent maturation stages were used.Immunohistochemical staining was also performed to characte rize the localization of T-type-Ca^(2+)-channels in PC.Expe rimental progesterone treatment was performed on the purified PC culture for 24 and 48 hours.Our results show that progesterone increases the expression of Ca_(v)3.1 and Ca_(v)3.3 and associated protein kinases A and Cin PC at the mRNA level within 48 hours after treatment at latest.These effects extend the current knowledge of the function of progesterone in the central nervous system and provide an explanatory approach for its influence on neuronal plasticity.展开更多
Anoctamin-5(ANO5)is a multi-pass membrane protein localized to the sarcolemma and the sarcoplasmic reticulum.Mutations were linked to rare autosomal recessive muscle diseases.Here,we summarize the clinical spectrum,im...Anoctamin-5(ANO5)is a multi-pass membrane protein localized to the sarcolemma and the sarcoplasmic reticulum.Mutations were linked to rare autosomal recessive muscle diseases.Here,we summarize the clinical spectrum,imaging data and molecular research findings as well as results of animal modeling,which significantly moved forward the understanding of mechanisms underlying ANO5-related muscle diseases.Given that precise histological information on inflammatory processes taking place in patient-derived muscle are still lacking,an(immuno)histological study on biopsies derived from six ANO5-patients was performed showing focal accumulation of necrotic fibers,mild fiber-size variances and myophagocytosis.In addition,MRI data of four ANO5-patients(including a 10-year follow-up in one patient)are presented and discussed in the context of previously published MRI-findings.Hence,data presented in this article combining a review of the literature with own myopathological findings address scientific trends and open questions on ANO5-related muscle diseases,which would be of significant interest for a wide neuromuscular diseases community.To conclude,a clear genotypeephenotype correlation does not exist,and ANO5-related muscle disorders might represent the next entity of a clinical continuum with varying degree of muscle cell pathologies.In addition,results of pre-clinical studies allowed the definition of suitable cell and animal models characterized by certain histological and functional pathologies resembling the human phenotype.These models might serve as suitable systems for testing of interventional concepts in future.展开更多
文摘This comprehensive review explores the intricate relationship between nutrition,the gut microbiome,steroid hormones,and Parkinson's disease within the context of the gut-brain axis.The gut-brain axis plays a pivotal role in neurodegenerative diseases like Parkinson's disease,encompassing diverse components such as the gut microbiota,immune system,metabolism,and neural pathways.The gut microbiome,profoundly influenced by dietary factors,emerges as a key player.Nutrition during the first 1000 days of life shapes the gut microbiota composition,influencing immune responses and impacting both child development and adult health.High-fat,high-sugar diets can disrupt this delicate balance,contributing to inflammation and immune dysfunction.Exploring nutritional strategies,the Mediterranean diet's anti-inflammatory and antioxidant properties show promise in reducing Parkinson's disease risk.Microbiome-targeted dietary approaches and the ketogenic diet hold the potential in improving brain disorders.Beyond nutrition,emerging research uncovers potential interactions between steroid hormones,nutrition,and Parkinson's disease.Progesterone,with its anti-inflammatory properties and presence in the nervous system,offers a novel option for Parkinson's disease therapy.Its ability to enhance neuroprotection within the enteric nervous system presents exciting prospects.The review addresses the hypothesis thatα-synuclein aggregates originate from the gut and may enter the brain via the vagus nerve.Gastrointestinal symptoms preceding motor symptoms support this hypothesis.Dysfunctional gut-brain signaling during gut dysbiosis contributes to inflammation and neurotransmitter imbalances,emphasizing the potential of microbiota-based interventions.In summary,this review uncovers the complex web of interactions between nutrition,the gut microbiome,steroid hormones,and Parkinson's disease within the gut-brain axis framework.Understanding these connections not only offers novel therapeutic insights but also illuminates the origins of neurodegenerative diseases such as Parkinson's disease.
文摘Plasticity of cerebellar Purkinje cells(PC)is influenced by progeste rone via the classical progeste rone receptors PR-A and PR-B by stimulating dendritogenesis,spinogenesis,and synaptogenesis in these cells.Dissociated PC cultures were used to analyze progeste rone effects at a molecular level on the voltage-gated T-type-Ca^(2+)-channels Ca_(v)3.1,Ca_(v)3.2,and Ca_(v)3.3 as they helped determine neuronal plasticity by regulating Ca^(2+)-influx in neuronal cells.The results showed direct effects of progesterone on the mRNA expression of T-type-Ca^(2+)-channels,as well as on the protein kinases A and C being involved in downstream signaling pathways that play an important role in neuronal plasticity.For the mRNA expression studies of T-type-Ca^(2+)-channels and protein kinases of the signaling cascade,laser microdissection and purified PC cultures of diffe rent maturation stages were used.Immunohistochemical staining was also performed to characte rize the localization of T-type-Ca^(2+)-channels in PC.Expe rimental progesterone treatment was performed on the purified PC culture for 24 and 48 hours.Our results show that progesterone increases the expression of Ca_(v)3.1 and Ca_(v)3.3 and associated protein kinases A and Cin PC at the mRNA level within 48 hours after treatment at latest.These effects extend the current knowledge of the function of progesterone in the central nervous system and provide an explanatory approach for its influence on neuronal plasticity.
基金Parts of the study were funded by The European Regional Development Fund(ERDFNo.NME-GPS)+2 种基金JC received funding from the University of Duisburg-Essen(ELAN-promotion programme)Germany.AR received funding from the French Muscular Dystrophy Association,France(AFMTe´le´thonNo.21466).
文摘Anoctamin-5(ANO5)is a multi-pass membrane protein localized to the sarcolemma and the sarcoplasmic reticulum.Mutations were linked to rare autosomal recessive muscle diseases.Here,we summarize the clinical spectrum,imaging data and molecular research findings as well as results of animal modeling,which significantly moved forward the understanding of mechanisms underlying ANO5-related muscle diseases.Given that precise histological information on inflammatory processes taking place in patient-derived muscle are still lacking,an(immuno)histological study on biopsies derived from six ANO5-patients was performed showing focal accumulation of necrotic fibers,mild fiber-size variances and myophagocytosis.In addition,MRI data of four ANO5-patients(including a 10-year follow-up in one patient)are presented and discussed in the context of previously published MRI-findings.Hence,data presented in this article combining a review of the literature with own myopathological findings address scientific trends and open questions on ANO5-related muscle diseases,which would be of significant interest for a wide neuromuscular diseases community.To conclude,a clear genotypeephenotype correlation does not exist,and ANO5-related muscle disorders might represent the next entity of a clinical continuum with varying degree of muscle cell pathologies.In addition,results of pre-clinical studies allowed the definition of suitable cell and animal models characterized by certain histological and functional pathologies resembling the human phenotype.These models might serve as suitable systems for testing of interventional concepts in future.
