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Articles 31 - 54 of 54
Full-Text Articles in Life Sciences
Tgf-Beta Triggers Rapid Fibrillogenesis Via A Novel T Beta Rii-Dependent Fibronectin-Trafficking Mechanism, Archana Varadaraj, Laura M. Jenkins, Priyanka Singh, Anindya Chanda, John Snider, N.Y. Lee, Ayelet R. Amsalem-Zafran, Marcelo Ehrlich, Yoav I. Henis, Karthikeyan Mythreye
Tgf-Beta Triggers Rapid Fibrillogenesis Via A Novel T Beta Rii-Dependent Fibronectin-Trafficking Mechanism, Archana Varadaraj, Laura M. Jenkins, Priyanka Singh, Anindya Chanda, John Snider, N.Y. Lee, Ayelet R. Amsalem-Zafran, Marcelo Ehrlich, Yoav I. Henis, Karthikeyan Mythreye
Faculty Publications
Fibronectin (FN) is a critical regulator of extracellular matrix (ECM) remodeling through its availability and stepwise polymerization for fibrillogenesis. Availability of FN is regulated by its synthesis and turnover, and fibrillogenesis is a multistep, integrin-dependent process essential for cell migration, proliferation, and tissue function. Transforming growth factor β (TGF-β) is an established regulator of ECM remodeling via transcriptional control of ECM proteins. Here we show that TGF-β, through increased FN trafficking in a transcription- and SMAD-independent manner, is a direct and rapid inducer of the fibrillogenesis required for TGF-β–induced cell migration. Whereas TGF-β signaling is dispensable for rapid fibrillogenesis, stable …
Altered Gut Microbiome In A Mouse Model Of Gulf War Illness Causes Neuroinflammation And Intestinal Injury Via Leaky Gut And Tlr4 Activation, Firas Alhasson, Suvarthi Das, Ratanesh K. Seth, Diptadip Dattaroy, Varun Chandrashekaran, Caitlin N. Ryan, Luisa S. Chan, Traci Testerman, James Burch, Lorne J. Hofseth, Ronnie Horner, Mitzi Nagarkatti, Prakash Nagarkatti, Stephen M. Lasley, Saurabh Chatterjee
Altered Gut Microbiome In A Mouse Model Of Gulf War Illness Causes Neuroinflammation And Intestinal Injury Via Leaky Gut And Tlr4 Activation, Firas Alhasson, Suvarthi Das, Ratanesh K. Seth, Diptadip Dattaroy, Varun Chandrashekaran, Caitlin N. Ryan, Luisa S. Chan, Traci Testerman, James Burch, Lorne J. Hofseth, Ronnie Horner, Mitzi Nagarkatti, Prakash Nagarkatti, Stephen M. Lasley, Saurabh Chatterjee
Faculty Publications
Many of the symptoms of Gulf War Illness (GWI) that include neurological abnormalities, neuroinflammation, chronic fatigue and gastrointestinal disturbances have been traced to Gulf War chemical exposure. Though the association and subsequent evidences are strong, the mechanisms that connect exposure to intestinal and neurological abnormalities remain unclear. Using an established rodent model of Gulf War Illness, we show that chemical exposure caused significant dysbiosis in the gut that included increased abundance of phylum Firmicutes and Tenericutes, and decreased abundance of Bacteroidetes. Several gram negative bacterial genera were enriched in the GWI-model that included Allobaculum sp. Altered microbiome caused significant decrease …
Aflatoxin-Exposure Of Vibrio Gazogenes As A Novel System For The Generation Of Aflatoxin Synthesis Inhibitors, Phani M. Gummadidala, Yung Pin Chen, Kevin R. Beauchesne, Kristen P. Miller, Chandrani Mitra, Michelle Velez-Martinez, Peter D. R. Moeller, John L. Ferry, Alan W. Decho, Anindya Chanda
Aflatoxin-Exposure Of Vibrio Gazogenes As A Novel System For The Generation Of Aflatoxin Synthesis Inhibitors, Phani M. Gummadidala, Yung Pin Chen, Kevin R. Beauchesne, Kristen P. Miller, Chandrani Mitra, Michelle Velez-Martinez, Peter D. R. Moeller, John L. Ferry, Alan W. Decho, Anindya Chanda
Faculty Publications
Aflatoxin is a mycotoxin and a secondary metabolite, and the most potent known liver carcinogen that contaminates several important crops, and represents a significant threat to public health and the economy. Available approaches reported thus far have been insufficient to eliminate this threat, and therefore provide the rational to explore novel methods for preventing aflatoxin accumulation in the environment. Many terrestrial plants and microbes that share ecological niches and encounter the aflatoxin producers have the ability to synthesize compounds that inhibit aflatoxin synthesis. However, reports of natural aflatoxin inhibitors from marine ecosystem components that do not share ecological niches with …
Inhibition Of Enterobacter Cloacae And Klebsiella Oxytoca By Garlic (Allium Sativum L.) And Garlic Pills, Lucinda Choules, Dennis A. Gravatt, Stephen M. Kosovich, Wei Yuan, Ping Wang, Ron Havner
Inhibition Of Enterobacter Cloacae And Klebsiella Oxytoca By Garlic (Allium Sativum L.) And Garlic Pills, Lucinda Choules, Dennis A. Gravatt, Stephen M. Kosovich, Wei Yuan, Ping Wang, Ron Havner
Faculty Publications
Multidrug resistant infections and superinfections are increasing globally. Intrinsic and acquired resistance to multiple antibiotics by bacteria from the Enterobacteriaceae family exasperate treatment efforts by clinicians. Carbapenem antibiotics were once relied upon to treat multidrug resistant infections. However, Carbapenem Resistant Enterobacteriaceae (CRE) infections are becoming more common, requiring that an alternative treatment be found. This study trialed an ancient cure, Fresh Garlic Extract (FGE) created from garlic (Allium sativum L.) and commercially prepared garlic pills against two opportunistic Enterobacteriaceae in vitro utilizing: disc diffusion, well diffusion (introducing DIFF-bolts), and HPLC. FGE and four brands of garlic pills inhibited the growth …
Nanotechnology In The Real World: Redeveloping The Nanomaterial Consumer Products Inventory, Marina E. Vance, Todd Kuiken, Eric P. Vejerano, Sean P. Mcginnis, Michael F. Hochella Jr., David Rejeski, Matthew S. Hull
Nanotechnology In The Real World: Redeveloping The Nanomaterial Consumer Products Inventory, Marina E. Vance, Todd Kuiken, Eric P. Vejerano, Sean P. Mcginnis, Michael F. Hochella Jr., David Rejeski, Matthew S. Hull
Faculty Publications
To document the marketing and distribution of nano-enabled products into the commercial marketplace, the Woodrow Wilson International Center for Scholars and the Project on Emerging Nanotechnologies created the Nanotechnology Consumer Products Inventory (CPI) in 2005. The objective of this present work is to redevelop the CPI by leading a research effort to increase the usefulness and reliability of this inventory. We created eight new descriptors for consumer products, including information pertaining to the nanomaterials contained in each product. The project was motivated by the recognition that a diverse group of stakeholders from academia, industry, and state/federal government had become highly …
Anion-Responsive Metallopolymer Hydrogels For Healthcare Applications, Jiuyang Zhang, Jing Yan, Parasmani Pageni, Yi Yan, Adam Wirth, Yun-Ping Chen, Yali Qiao, Qian Wang, Alan W. Decho, Chuanbing Tang
Anion-Responsive Metallopolymer Hydrogels For Healthcare Applications, Jiuyang Zhang, Jing Yan, Parasmani Pageni, Yi Yan, Adam Wirth, Yun-Ping Chen, Yali Qiao, Qian Wang, Alan W. Decho, Chuanbing Tang
Faculty Publications
Metallopolymers combine a processable, versatile organic polymeric skeleton with functional metals, providing multiple functions and methodologies in materials science. Taking advantage of cationic cobaltocenium as the key building block, organogels could be simply switched to hydrogels via a highly efficient ion exchange. With the unique ionic complexion ability, cobaltocenium moieties provide a robust soft substrate for recycling antibiotics from water. The essential polyelectrolyte nature offers the metallopolymer hydrogels to kill multidrug resistant bacteria. The multifunctional characteristics of these hydrogels highlight the potential for metallopolymers in the field of healthcare and environmental treatment.
Anion-Responsive Metallopolymer Hydrogels For Healthcare Applications, Jiuyang Zhang, Jing Yan, Parasmani Pageni, Yi Yan, Adam Wirth, Yun-Ping Chen, Yali Qiao, Qian Wang, Alan W. Decho, Chuanbing Tang
Anion-Responsive Metallopolymer Hydrogels For Healthcare Applications, Jiuyang Zhang, Jing Yan, Parasmani Pageni, Yi Yan, Adam Wirth, Yun-Ping Chen, Yali Qiao, Qian Wang, Alan W. Decho, Chuanbing Tang
Faculty Publications
Metallopolymers combine a processable, versatile organic polymeric skeleton with functional metals, providing multiple functions and methodologies in materials science. Taking advantage of cationic cobaltocenium as the key building block, organogels could be simply switched to hydrogels via a highly efficient ion exchange. With the unique ionic complexion ability, cobaltocenium moieties provide a robust soft substrate for recycling antibiotics from water. The essential polyelectrolyte nature offers the metallopolymer hydrogels to kill multidrug resistant bacteria. The multifunctional characteristics of these hydrogels highlight the potential for metallopolymers in the field of healthcare and environmental treatment.
When Nanoparticles Meet Biofilms—Interactions Guiding The Environmental Fate And Accumulation Of Nanoparticles, Kaoru Ikuma, Alan W. Decho, Boris T. Lau
When Nanoparticles Meet Biofilms—Interactions Guiding The Environmental Fate And Accumulation Of Nanoparticles, Kaoru Ikuma, Alan W. Decho, Boris T. Lau
Faculty Publications
Bacteria are essential components of all natural and many engineered systems. The most active fractions of bacteria are now recognized to occur as biofilms, where cells are attached and surrounded by a secreted matrix of “sticky” extracellular polymeric substances. Recent investigations have established that significant accumulation of nanoparticles (NPs) occurs in aquatic biofilms. These studies point to the emerging roles of biofilms for influencing partitioning and possibly transformations of NPs in both natural and engineered systems. While attached biofilms are efficient “sponges” for NPs, efforts to elucidate the fundamental mechanisms guiding interactions between NPs and biofilms have just begun. In …
Engineering Nanoparticles To Silence Bacterial Communication, Kristen P. Miller, Lei Wang, Yung-Pin Chen, Perry J. Pellechia, Brian C. Benicewicz, Alan W. Decho
Engineering Nanoparticles To Silence Bacterial Communication, Kristen P. Miller, Lei Wang, Yung-Pin Chen, Perry J. Pellechia, Brian C. Benicewicz, Alan W. Decho
Faculty Publications
The alarming spread of bacterial resistance to traditional antibiotics has warranted the study of alternative antimicrobial agents. Quorum sensing (QS) is a chemical cell-to-cell communication mechanism utilized by bacteria to coordinate group behaviors and establish infections. QS is integral to bacterial survival, and therefore provides a unique target for antimicrobial therapy. In this study, silicon dioxide nanoparticles (Si-NP) were engineered to target the signaling molecules [i.e., acylhomoserine lactones (HSLs)] used for QS in order to halt bacterial communication. Specifically, when Si-NP were surface functionalized with β-cyclodextrin (β-CD), then added to cultures of bacteria (Vibrio fischeri), whose luminous output depends upon …
Upregulation Of Mir21 And Repression Of Grhl3 By Leptin Mediates Sinusoidal Endothelial Injury In Experimental Nonalcoholic Steatohepatitis, Sahar Pourhoseini, Ratanesh K. Seth, Suvarthi Das, Diptadip Dattaroy, Maria B. Kadiiska, Guanhua Xie, Gregory A. Michelotti, Mitzi Nagarkatti, Anna Mae Diehl, Saurabh Chatterjee
Upregulation Of Mir21 And Repression Of Grhl3 By Leptin Mediates Sinusoidal Endothelial Injury In Experimental Nonalcoholic Steatohepatitis, Sahar Pourhoseini, Ratanesh K. Seth, Suvarthi Das, Diptadip Dattaroy, Maria B. Kadiiska, Guanhua Xie, Gregory A. Michelotti, Mitzi Nagarkatti, Anna Mae Diehl, Saurabh Chatterjee
Faculty Publications
Sinusoidal endothelial dysfunction (SED) has been found to be an early event in nonalcoholic steatohepatitis (NASH) progression but the molecular mechanisms underlying its causation remains elusive. We hypothesized that adipokine leptin worsens sinusoidal injury by decreasing functionally active nitric oxide synthase 3 (NOS)3 via miR21. Using rodent models of NASH, and transgenic mice lacking leptin and leptin receptor, results showed that hyperleptinemia caused a 4-5 fold upregulation of hepatic miR21 as assessed by qRTPCR. The upregulation of miR21 led to a time-dependent repression of its target protein Grhl3 levels as shown by western blot analyses. NOS3-p/NOS3 ratio which is controlled …
Toxicity Of Engineered Nanomaterials And Their Transformation Products Following Wastewater Treatment On A549 Human Lung Epithelial Cells, Yanjun Ma, Subbiah Elankumaran, Linsey C. Marr, Eric P. Vejerano, Amy Pruden
Toxicity Of Engineered Nanomaterials And Their Transformation Products Following Wastewater Treatment On A549 Human Lung Epithelial Cells, Yanjun Ma, Subbiah Elankumaran, Linsey C. Marr, Eric P. Vejerano, Amy Pruden
Faculty Publications
Here we characterize the toxicity of environmentally-relevant forms of engineered nanomaterials (ENMs), which can transform during wastewater treatment and persist in aqueous effluents and biosolids. In an aerosol exposure scenario, cytotoxicity and genotoxicity of effluents and biosolids from lab-scale sequencing batch reactors (SBRs) to A549 human lung epithelial cells were examined. The SBRs were dosed with nanoAg, nano zero-valent iron (NZVI), nanoTiO2 and nanoCeO2 at sequentially increasing concentrations from 0.1 to 20 mg/L. Toxicities were compared to outputs from SBRs dosed with ionic/bulk analogs, undosed SBRs, and pristine ENMs. Pristine nanoAg and NZVI showed significant cytotoxicity to A549 cells in …
Characterization Of Particle Emissions And Fate Of Nanomaterials During Incineration, Eric P. Vejerano, Elena C. Leon, Amara L. Holder, Linsey C. Marr
Characterization Of Particle Emissions And Fate Of Nanomaterials During Incineration, Eric P. Vejerano, Elena C. Leon, Amara L. Holder, Linsey C. Marr
Faculty Publications
As the use of nanotechnology in consumer products continues to grow, it is inevitable that some nanomaterials will end up in the waste stream and will be incinerated. Through laboratory-scale incineration of paper and plastic wastes containing nanomaterials, we assessed their effect on emissions of particulate matter (PM) and the effect of incineration on the nanomaterials themselves. The presence of nanomaterials did not significantly influence the particle number emission factor. The PM size distribution was not affected except at very high mass loadings (10 wt%) of the nanomaterial, in which case the PM shifted toward smaller sizes; such loadings are …
Changing Microspatial Patterns Of Sulfate-Reducing Microorganisms (Srm) During Cycling Of Marine Stromatolite Mats, Alexandru Petrisor, Sandra Szyjka, Tomohiro Kawaguchi, Pieter Visscher, Sean Norman, Alan Decho
Changing Microspatial Patterns Of Sulfate-Reducing Microorganisms (Srm) During Cycling Of Marine Stromatolite Mats, Alexandru Petrisor, Sandra Szyjka, Tomohiro Kawaguchi, Pieter Visscher, Sean Norman, Alan Decho
Faculty Publications
Microspatial arrangements of sulfate-reducing microorganisms (SRM) in surface microbial mats (~1.5 mm) forming open marine stromatolites were investigated. Previous research revealed three different mat types associated with these stromatolites, each with a unique petrographic signature. Here we focused on comparing “non-lithifying” (Type-1) and “lithifying” (Type-2) mats. Our results revealed three major trends: (1) Molecular typing using the dsrA probe revealed a shift in the SRM community composition between Type-1 and Type-2 mats. Fluorescence in-situ hybridization (FISH) coupled to confocal scanning-laser microscopy (CSLM)-based image analyses, and 35SO42−-silver foil patterns showed that SRM were present in surfaces of …
Changing Microspatial Patterns Of Sulfate-Reducing Microorganisms (Srm) During Cycling Of Marine Stromatolite Mats, Alexandru I. Petrisor, Sandra Szyjka, Tomohiro Kawaguchi, Pieter T. Visscher, Robert Sean Norman, Alan W. Decho
Changing Microspatial Patterns Of Sulfate-Reducing Microorganisms (Srm) During Cycling Of Marine Stromatolite Mats, Alexandru I. Petrisor, Sandra Szyjka, Tomohiro Kawaguchi, Pieter T. Visscher, Robert Sean Norman, Alan W. Decho
Faculty Publications
Microspatial arrangements of sulfate-reducing microorganisms (SRM) in surface microbial mats (~1.5 mm) forming open marine stromatolites were investigated. Previous research revealed three different mat types associated with these stromatolites, each with a unique petrographic signature. Here we focused on comparing “non-lithifying” (Type-1) and “lithifying” (Type-2) mats. Our results revealed three major trends: (1) Molecular typing using the dsrA probe revealed a shift in the SRM community composition between Type-1 and Type-2 mats. Fluorescence in-situ hybridization (FISH) coupled to confocal scanning-laser microscopy (CSLM)-based image analyses, and 35SO42−-silver foil patterns showed that SRM were present in surfaces of …
The Eps Matrix As An Adaptive Bastion For Biofilms: Introduction To Special Issue, Alan Decho
The Eps Matrix As An Adaptive Bastion For Biofilms: Introduction To Special Issue, Alan Decho
Faculty Publications
No abstract provided.
The Eps Matrix As An Adaptive Bastion For Biofilms: Introduction To Special Issue, Alan W. Decho
The Eps Matrix As An Adaptive Bastion For Biofilms: Introduction To Special Issue, Alan W. Decho
Faculty Publications
No abstract provided.
Multitargeting By Turmeric, The Golden Spice: From Kitchen To Clinic (Abstract), Subash C. Gupta, Bokyung Sung, Ji Hye Kim, Sahdeo Prasad, Shiyou Li, Bharat Aggarwal
Multitargeting By Turmeric, The Golden Spice: From Kitchen To Clinic (Abstract), Subash C. Gupta, Bokyung Sung, Ji Hye Kim, Sahdeo Prasad, Shiyou Li, Bharat Aggarwal
Faculty Publications
Abstract attached
Triterpenoid Saponins From Eryngium Yuccifolium ‘Kershaw Blue’ (Abstract), Ping Wang, Wei Yuan, Guangrui Deng, Zushang Su, Shiyou Li
Triterpenoid Saponins From Eryngium Yuccifolium ‘Kershaw Blue’ (Abstract), Ping Wang, Wei Yuan, Guangrui Deng, Zushang Su, Shiyou Li
Faculty Publications
Abstract attached
Psychologists And Medications In The Era Of Interprofessional Care: Collaboration Is Less Problematic And Costly Than Prescribing, William N. Robiner, Tim R. Tumlin, Tanya Tompkins
Psychologists And Medications In The Era Of Interprofessional Care: Collaboration Is Less Problematic And Costly Than Prescribing, William N. Robiner, Tim R. Tumlin, Tanya Tompkins
Faculty Publications
Increasing emphasis on interprofessionalism and teamwork in healthcare renders psychologists’ collaborations critical and invites reexamination of psychologists’ roles related to medications. The Collaboration Level outlined by the APA’s Ad Hoc Task Force is more achievable and in synch with health reform than prescription privileges (RxP). RxP remains controversial due to training and safety concerns, lacking support from health professionals, psychologists, and consumers. Differences in educational preparation of psychologists relative to prescribing professionals are discussed. Enactment of only three of 170 RxP initiatives reveals RxP to be a costly, ineffectual agenda. Alternatives (e.g., integrated care, collaboration, telehealth) increase access without risks …
[6]-Gingerol: A Novel At1 Antagonist For The Treatment Of Cardiovascular Disease (Abstract), Qing Liu, Jinjin Liu, Haili Guo, Shengnan Sun, Shifeng Wang, Yanling Zhang, Shiyou Li, Yanjiang Qiao
[6]-Gingerol: A Novel At1 Antagonist For The Treatment Of Cardiovascular Disease (Abstract), Qing Liu, Jinjin Liu, Haili Guo, Shengnan Sun, Shifeng Wang, Yanling Zhang, Shiyou Li, Yanjiang Qiao
Faculty Publications
No abstract provided.
Sesquiterpenes And Dimeric Sesquiterpenoids From Sarcandra Glabra, Xiu-Feng He, Sheng Yin, Yin-Chun Ji, Zu-Shang Su, Mei-Yu Geng, Jian-Min Yue
Sesquiterpenes And Dimeric Sesquiterpenoids From Sarcandra Glabra, Xiu-Feng He, Sheng Yin, Yin-Chun Ji, Zu-Shang Su, Mei-Yu Geng, Jian-Min Yue
Faculty Publications
Two new sesquiterpenes, sarcandralactones A (1) and B (2), and five new dimeric sesquiterpenoids, sarcandrolides A-E (3-7), along with 10 known compounds were isolated from the whole plants of Sarcandra glabra. Their structures were elucidated on the basis of spectroscopic analysis. Some of the new isolates exhibit significant cytotoxicities when tested against a small panel of tumor cell lines.
Interaction Of Fish Aryl Hydrocarbon Receptor Paralogs (Ahr1 And Ahr2) With The Retinoblastoma Protein, Rebeka R. Merson, Sibel I. Karchner, Mark E. Hahn
Interaction Of Fish Aryl Hydrocarbon Receptor Paralogs (Ahr1 And Ahr2) With The Retinoblastoma Protein, Rebeka R. Merson, Sibel I. Karchner, Mark E. Hahn
Faculty Publications
The aryl hydrocarbon receptor (AHR) mediates the toxic effects of 2,3,7,8-tetrachlorodibenzo-pdioxin (TCDD) and related compounds. In some mammalian cell lines, TCDD induces G1 cell cycle arrest, which depends on an interaction between the AHR and the retinoblastoma tumor suppressor (RB). Mammals possess one AHR, whereas fishes possess two or more AHR paralogs that differ in the domains important for AHR-RB interactions in mammals. To test the hypothesis that fish AHR paralogs differ in their ability to interact with RB, we cloned RB cDNA from Atlantic killifish, Fundulus heteroclitus, and studied the interactions of killifish RB protein with killifish AHR1 and …
Light-Dependant Biostabilisation Of Sediments By Stromatolite Assemblages, David M. Paterson, Rebecca J. Aspden, Pieter T. Visscher, Mireille Consalvey, Miriam S. Andres, Alan W. Decho, John Stolz, R. Pamela Reid
Light-Dependant Biostabilisation Of Sediments By Stromatolite Assemblages, David M. Paterson, Rebecca J. Aspden, Pieter T. Visscher, Mireille Consalvey, Miriam S. Andres, Alan W. Decho, John Stolz, R. Pamela Reid
Faculty Publications
For the first time we have investigated the natural ecosystem engineering capacity of stromatolitic microbial assemblages. Stromatolites are laminated sedimentary structures formed by microbial activity and are considered to have dominated the shallows of the Precambrian oceans. Their fossilised remains are the most ancient unambiguous record of early life on earth. Stromatolites can therefore be considered as the first recognisable ecosystems on the planet. However, while many discussions have taken place over their structure and form, we have very little information on their functional ecology and how such assemblages persisted despite strong eternal forcing from wind and waves. The capture …
Inhibition Of Amyloid-Β Aggregation And Caspase-3 Activation By The Ginkgo Biloba Extract Egb761, Yuan Luo, Julie V. Smith, Vijaykumar Paramasivam, Adam Burdick, Kenneth J. Curry, Justin P. Buford, Ikhlas Khan, William J. Netzer, Huaxi Xu, Peter Butko
Inhibition Of Amyloid-Β Aggregation And Caspase-3 Activation By The Ginkgo Biloba Extract Egb761, Yuan Luo, Julie V. Smith, Vijaykumar Paramasivam, Adam Burdick, Kenneth J. Curry, Justin P. Buford, Ikhlas Khan, William J. Netzer, Huaxi Xu, Peter Butko
Faculty Publications
Standardized extract from the leaves of the Ginkgo biloba tree, labeled EGb761, has been used in clinical trials for its beneficial effects on brain functions, particularly in connection with age-related dementias and Alzheimer's disease (AD). Substantial experimental evidence indicates that EGb761 protects against neuronal damage from a variety of insults, but its cellular and molecular mechanisms remain unknown. Using a neuroblastoma cell line stably expressing an AD-associated double mutation, we report that EGb761 inhibits formation of amyloid-β (Aβ) fibrils, which are the diagnostic, and possibly causative, feature of AD. The decreased Aβ fibrillogenesis in the presence of EGb761 was observed …