scispace - formally typeset
Search or ask a question

How to engineering Beta-Amyloid for Alzheimer disease? 


Best insight from top research papers

Engineering Beta-Amyloid for Alzheimer's disease involves exploring novel structures like two-dimensional covalent organic frameworks (COFs) , MBenes such as Cd2B, Mo2B, Cu2B, and Ta2B , and stable alginate microbeads containing amyloid-producing cells . These structures have shown potential in preventing Beta-Amyloid aggregation, destabilizing amyloid structures, and providing a platform for studying chronic Aβ production. The use of engineered COFs with amine functional groups and high contact areas can inhibit Beta-Amyloid aggregation and enhance diffusivity through the blood-brain barrier . Similarly, MBenes, especially Cd2B, have demonstrated effectiveness in destabilizing amyloid-β structures, potentially preventing accumulation . Additionally, alginate microbeads encapsulating amyloid-secreting cells offer a stable platform for sustained Aβ release, enabling the modeling of Alzheimer's disease progression in vitro and in vivo .

Answers from top 5 papers

More filters
Papers (5)Insight
Beta-Amyloid can be engineered for Alzheimer's disease research by utilizing synthetic, cell-derived, brain-derived, or recombinant forms to model Aβ aggregation, neurotoxicity, and cognitive impairment in vitro and in vivo.
Encapsulate amyloid-secreting cells in alginate microbeads to model Alzheimer's disease progression, enabling chronic and sustained release of Beta-Amyloid for in vitro and in vivo studies.
An efficient method for expressing and purifying Amyloid-Beta (Aβ1-42) peptide from E. coli is optimized, providing a reproducible yield for studying Alzheimer's disease pathology.
Amine-functionalized COFs with large surface area prevent beta-amyloid aggregation, inhibit protofibril self-assembly, and enhance diffusivity through the blood-brain barrier, showing promise for Alzheimer's disease treatment.
Novel bioengineered MBenes like Cd2B show promise in destabilizing Beta-amyloid structures, potentially preventing their accumulation in Alzheimer's disease, as per the in-silico study findings.

Related Questions

How do current engineering techniques target beta-amyloid inhibition?5 answersCurrent engineering techniques target beta-amyloid inhibition through various approaches. One method involves utilizing two-dimensional covalent organic frameworks (COFs) functionalized with amines to prevent beta-amyloid aggregation by inhibiting protofibril self-assembly and creating instability in amyloid structures. Another technique involves the molecular tweezer CLR01, which selectively binds lysine and arginine residues in Aβ peptides, disrupting inter- and intramolecular interactions and reducing β-sheet content in Aβ dimers. Additionally, peptide inhibitors designed based on Aβ fibril structures show promise in selectively recognizing different Aβ species, offering a potential avenue for developing potent amyloid inhibitors for therapeutic purposes. These innovative engineering strategies provide insights into novel approaches for combating Alzheimer's disease by targeting beta-amyloid inhibition.
What are advancements in engineering Beta-Amyloid for Alzheimer disease?5 answersEngineering Beta-Amyloid for Alzheimer's disease has seen advancements through various approaches. Studies have explored utilizing two-dimensional covalent organic frameworks (COFs) to prevent Beta-Amyloid aggregation, showing potential in inhibiting protofibril self-assembly and fibrillation. Additionally, novel structures based on MBenes like Cd2B have demonstrated effectiveness in destabilizing Beta-Amyloid structures, paving the way for potential medicinal agents to prevent amyloid-β accumulation. Furthermore, research on transgenic mouse models has led to the development of App knock-in mice, providing insights into Aβ metabolism, clearance, and the differential roles of enzymes involved in Aβ degradation. These advancements offer promising avenues for future experimental research and therapeutic strategies in combating Alzheimer's disease.
How to model alzheimers in zebra fish?4 answersTo model Alzheimer's disease (AD) in zebrafish, researchers can induce AD-like conditions using agents like Okadaic acid (OKA) to mimic key pathological features. Zebrafish offer a valuable model due to their behavioral patterns, genetic similarities, and sensitivity to neurotropic drugs, allowing for the establishment of behavioral and transgenic AD models. By combining various methods of AD induction in adult zebrafish, a holistic model expressing characteristic AD features can be created for studying the disease's pathogenesis and screening potential drugs. Zebrafish's well-conserved nervous system and established genome make them an excellent comparative model for investigating AD-related behaviors and molecular mechanisms, emphasizing the need for integrating behavioral and transgenic models for comprehensive AD screening. Zebrafish's unique tissue regenerative ability further enhances their utility in early drug discovery and preclinical studies for AD.
How to make mice suffer from alzheimer's?5 answersTo induce Alzheimer's disease (AD) in mice, researchers have utilized various methods. One approach involves intracerebroventricular (ICV) injection of streptozotocin (STZ), a diabetogenic agent, which leads to cognitive deficits, synaptic protein decline, tau phosphorylation, oxidative stress, and amyloid plaque accumulation. Another method includes ICV injection of amyloid-β (Aβ) peptides, mimicking AD pathology and inducing cognitive impairment. Additionally, systemic immune challenges using PolyI:C during gestation and adulthood have been shown to predispose mice to AD-like neuropathology, including amyloid precursor protein accumulation, altered tau phosphorylation, and memory impairments. These models provide valuable tools for studying AD pathogenesis and evaluating potential therapeutic interventions.
How stem cell therapy used in Alzheimer?5 answersStem cell therapy is being investigated as a potential treatment for Alzheimer's disease (AD). Different types of stem cells, including embryonic stem cells (ESCs), induced pluripotent stem cells (iPSCs), mesenchymal stem cells (MSCs), and neural stem cells (NSCs), have been studied for their therapeutic potential in AD. Preclinical studies have shown that stem cell therapy can induce relevant effects in AD, such as improving cognitive performance and promoting neurogenesis. However, there are challenges associated with each type of stem cell, such as controlling differentiation and low survival and homing rates after transplantation. Despite these challenges, stem cell therapy holds promise for AD treatment and could potentially be adapted for other neurodegenerative diseases as well. Future research should focus on studying various types of stem cells, conducting cross-disciplinary research, and improving the timeliness and individualization of stem cell therapies for AD.
What are the new study in tissue engineering in alzheimer disease?5 answersTissue engineering studies in Alzheimer's disease (AD) have focused on developing three-dimensional (3D) culture models to mimic the native microenvironment of the brain. These models utilize induced pluripotent stem cells (iPSCs) derived from AD patients to generate neural tissue. One approach involves using a porous silk-collagen scaffold combined with a collagen hydrogel to support the growth of neurons and glial cells, allowing for the development of complex and functional networks. Another approach involves encapsulating iPSC-derived neural progenitor cells in poly(lactic-co-glycolic acid) (PLGA) microtopographic scaffolds, which accelerates neuronal differentiation and enhances the pathogenic characteristics of familial AD (FAD) mutations. Additionally, a novel organotypic brain slice culture model using transgenic mouse models expressing AD-related genes has been developed, providing a valid and sensitive replacement for in vivo studies. These tissue engineering approaches offer valuable tools for studying AD-related pathomechanisms and testing potential therapeutic interventions.

See what other people are reading

How radiation can affect children brain development in having radiotherapy?
5 answers
Radiation therapy can significantly impact children's brain development during radiotherapy, leading to neurocognitive impairment. Young children are particularly vulnerable to radiation-induced neurocognitive dysfunction, with age playing a crucial role in the severity of cognitive deficits post-exposure. Studies show that ionizing radiation can trigger neuronal degeneration and cell death in neurogenic brain regions more prominently in young animals compared to adults, affecting neurocognitive function in a dose- and age-dependent manner. Additionally, factors like total radiation dose, age at treatment, and time since last treatment can influence the risk of late endocrine deficiency following cranial irradiation, further impacting brain development in children. Therefore, understanding the mechanisms and age-related effects of radiation on the brain is essential for developing strategies to mitigate neurocognitive impairments in pediatric patients undergoing radiotherapy.
What is the role of epigenetics in Alzheimer's disease??
5 answers
Epigenetics plays a crucial role in Alzheimer's disease (AD) by influencing gene expression without altering DNA sequences. Studies highlight various epigenetic changes in AD, including DNA methylation, histone modifications, and regulation of non-coding RNAs. Specifically, histone modifications like histone methylation and acetylation have been implicated in AD pathogenesis, affecting synaptic genes important for cognitive stability. Epigenetic mechanisms are reported to regulate memory development through DNA methylation and histone modifications, with alterations in AD-related genes contributing to pathogenesis at the transcriptional level. Targeting epigenetic enzymes, such as EHMT2, shows promise in restoring downregulated genes related to synaptic organization and plasticity in AD models, emphasizing the therapeutic potential of epigenetic interventions in AD treatment.
Is CXCR4 neuroprotective?
4 answers
Yes, CXCR4 exhibits neuroprotective properties in various cerebrovascular conditions. Studies have shown that CXCR4 plays a crucial role in reducing brain injury and inflammation after events like subarachnoid hemorrhage (SAH), intracerebral hemorrhage (ICH), and cerebral ischemia. CXCR4 activation has been linked to the alleviation of neuronal pyroptosis, reduction of neuroinflammation, and improvement in neurological deficits post-injury. Additionally, CXCR4 interacts with other receptors like μ-opioid receptors (MORs) to modulate neuronal survival pathways, highlighting its multifaceted neuroprotective mechanisms. These findings suggest that targeting CXCR4 could be a promising therapeutic strategy for mitigating brain damage and improving outcomes in various neurological conditions.
What is lps-induced inflammation?
5 answers
Lipopolysaccharide (LPS)-induced inflammation refers to the inflammatory response triggered by LPS, a component of the outer membrane of Gram-negative bacteria. This inflammation plays a significant role in various conditions beyond sepsis, affecting chronic diseases like neurodegenerative, metabolic, and cardiovascular diseases. In the context of male reproductive function, LPS-induced inflammation compromises male fecundity by decreasing testosterone levels, damaging spermatogenesis, and disrupting testicular gene expression involved in steroidogenesis regulation and blood-testis barrier integrity. In the central nervous system, LPS-induced neuroinflammation leads to dynamic changes in perivascular astrocytes and microglia, affecting their interactions with the brain vasculature and potentially compromising the blood-brain barrier integrity. Additionally, in the brain, LPS-induced inflammation activates microglia, leading to impairments in GABAergic synapses and cognitive function over a defined temporal sequence.
What are lipopolysaccharides?
5 answers
Lipopolysaccharides (LPS) are complex glycolipids found in the outer membrane of Gram-negative bacteria, consisting of lipid A, core oligosaccharide, and O-polysaccharide components. LPS, particularly the lipid A moiety, is a potent pro-inflammatory neurotoxin that can cross physiological barriers, contributing to neurodegenerative disorders like Alzheimer's disease. The lipid A structure, with variations in acylation, phosphorylation, and additional substituents, plays a crucial role in immunostimulation and immune responses, with implications for human health, including septic shock. Studies have shown that LPS can be studied in solution as vesicles or micelles, aiding in understanding their structural flexibility and interactions with antibiotics like gentamicin. Overall, LPS are vital components of Gram-negative bacteria with significant implications for both bacterial biology and human health.
Can antioxidants in elderly nutrition reduce oxidative stress and promote cellular health?
10 answers
Antioxidants play a crucial role in mitigating oxidative stress, which is a significant factor in the aging process and the development of age-associated degenerative diseases. The imbalance between pro- and antioxidant species leads to molecular and cellular damage, highlighting the importance of antioxidants in promoting cellular health in the elderly. Oxidative stress, characterized by the excessive production of reactive oxygen and nitrogen species, contributes to cognitive impairment, neurodegenerative disorders, and a decline in physiological and cognitive functions in the elderly. Dietary components rich in antioxidants, such as polyphenols, vitamin C, carotenoids, and olive oil, have been shown to modulate the aging process and delay the progression of chronic diseases like cardiovascular diseases, diabetes, and Alzheimer's disease. Exercise, alongside antioxidant intake, has been identified as a therapeutic intervention that reduces inflammatory processes, increases antioxidant capacities, and promotes healthy aging by decreasing reactive oxygen species (ROS). Specifically, a combination of aerobic exercise and low-intensity resistance training, with or without additional antioxidant supplementation, has been recommended to dampen cellular lipid peroxidation in the elderly, suggesting that adequate physical activity might negate the need for extra antioxidant supplements. However, the effectiveness of antioxidant supplementation in aging-related diseases has been met with mixed results, indicating a complex interplay between endogenous and exogenous antioxidants and the systemic redox system. Moreover, excessive antioxidant supplementation could potentially reverse their beneficial roles, as antioxidants in large concentrations can act as pro-oxidants, contributing to oxidative stress rather than ameliorating it. Natural products and phytochemicals present in fruits, vegetables, and grains have been linked to reducing oxidative stress-induced diseases, with dietary interventions considering the principles of chrononutrition showing promise for the elderly. The reduction potentials and reaction rate constants of flavonoids indicate their efficacy in reducing oxidative processes, underscoring the potential of optimizing health and increasing longevity through dietary antioxidants. Despite the challenges in antioxidant supplementation, the balance between ROS/RNS and antioxidants remains critical in maintaining cellular health, with antioxidants (both enzymatic and nonenzymatic) known to counteract the deleterious actions of ROS/RNS, thereby offering protection against oxidative and RNS stress. In conclusion, while antioxidants in elderly nutrition can reduce oxidative stress and promote cellular health, the complexity of their effects, including the potential for antioxidants to act as pro-oxidants, necessitates a balanced approach that includes dietary sources of antioxidants, physical activity, and careful consideration of supplementation.
Is there any benefit of acupuncture in postoperative analgesia?
5 answers
Acupuncture has shown significant benefits in postoperative analgesia. Studies have highlighted its effectiveness in relieving postoperative pain, reducing the need for additional analgesics, and improving patient comfort. Specifically, electroacupuncture has been found to alleviate acute postoperative pain by activating the STING/IFN-1 pathway, leading to analgesic and anti-inflammatory effects. Furthermore, electroacupuncture combined with patient-controlled intravenous analgesia has demonstrated superior analgesic effects compared to sham acupuncture, indicating its potential as a complementary therapy for pain management after cesarean delivery. Overall, acupuncture, especially electroacupuncture, emerges as a promising approach for enhancing postoperative pain relief and reducing the reliance on traditional analgesics, showcasing its value in improving the postoperative experience for patients.
How does the efficiency of irrigation systems vary based on crop type and soil properties?
5 answers
The efficiency of irrigation systems varies based on crop type and soil properties. Different irrigation systems, such as subsurface drip, surface drip, and furrow irrigation, impact soil physical properties and crop yield differently. Subsurface drip irrigation showed superior results in soil moisture content, bulk density, and plant height for cotton crops. In contrast, a study on furrow irrigation highlighted the importance of furrow compaction for maximizing water use efficiency in different soil types. Additionally, optimal irrigation strategies, like GET-OPTIS, considering soil and crop characteristics, significantly influence water-use efficiency and crop yield. Implementing advanced systems like DRLIC, which uses deep reinforcement learning, can further enhance irrigation efficiency by predicting future soil moisture loss and achieving water savings of up to 9.52% compared to traditional methods.
How HDL affects cognitive function?
5 answers
High-density lipoprotein cholesterol (HDL) plays a crucial role in cognitive function among older adults. Research indicates that higher levels of HDL are associated with better cognitive performance. Longitudinal studies suggest that an increase in non-high-density lipoprotein cholesterol (NHDL-C) may be protective against cognitive decline, particularly in females and individuals without cardiovascular disease. Furthermore, a higher concentration of total cholesterol, including HDL, is linked to improved cognitive scores in elderly females without a history of stroke. HDL's protective effects on cognitive function are attributed to its ability to reduce amyloid β-protein accumulation, vascular inflammation, and neuroinflammation, ultimately preserving memory function in the elderly. In summary, maintaining high levels of HDL may serve as a protective factor against cognitive impairment in aging individuals.
What are the long-term effects of varying planting densities on crop yield and quality?
4 answers
The long-term effects of varying planting densities on crop yield and quality are multifaceted, influenced by crop type, environmental conditions, and management practices. For cotton, higher planting densities were more efficient in weed reduction, but lower densities improved yield-related traits and fiber quality, with bed sowing and lower densities enhancing crop morphology and yield. In wheat, an optimal planting density was identified that maximized yield, water utilization efficiency, and grain quality, indicating that beyond a certain density, yield gains diminish. Similarly, for sater, increased plant density reduced individual plant yields but increased overall dry leaf and volatile oil yield per unit area, with specific spacing combinations yielding the highest outputs. In grapevines, high planting densities were detrimental to both yield potential and fruit quality, suggesting that lower densities favor better microclimate conditions within the canopy. For Chinese fir, optimal density and site management enhanced large-diameter timber yield, with lower densities favoring growth under better site conditions. Maize, cotton, and soybean studies showed that increased densities did not necessarily penalize yield if managed to avoid intraspecific competition, with soybeans adapting well to higher densities. In maize, moderate planting densities with density-tolerant cultivars improved yield stability and resource use efficiency in semi-arid regions. Sorghum ratoon cropping benefited from specific nitrogen and planting density combinations, enhancing yield and quality for both main and ratoon crops. Soybean varieties responded differently to planting densities, with moderate increases improving yield in certain varieties by optimizing leaf area index and dry matter distribution. Lastly, high-density planting in fruit crops has been shown to increase productivity per unit area without sacrificing quality, highlighting the importance of species-specific strategies. These findings collectively underscore the importance of optimizing planting densities to balance between maximizing yield and maintaining or enhancing crop quality, with the optimal density varying significantly across different crops and environmental conditions.
What are preventive measures for Alzheimer's disease?
5 answers
Preventive measures for Alzheimer's disease include lifestyle interventions such as education, social engagement, cognitive stimulation, exercise, and maintaining a healthy diet. Additionally, dietary components like soy isoflavones, rutin, and vitamin B1 have shown neuroprotective effects against AD. Modifiable risk factors like substance use, lack of physical and mental activity, and poor sleep habits should be addressed to delay the onset of AD. Screening tools like biomarkers and cognitive assessments are crucial for early detection and effective care planning. Primary prevention strategies targeting healthy seniors through non-pharmacological treatments like physical exercise and a healthy diet can help prevent the progression of AD. Overall, a combination of these approaches can significantly reduce the risk of developing Alzheimer's disease.