Emerging evolution trends of application of natural products in Alzheimer’s disease

2021 ◽  
pp. 1-11
Author(s):  
Xuemei Wang ◽  
Xueli Li ◽  
Lin Zhang ◽  
Ruirui Guo ◽  
Xinyue Sun ◽  
...  
Keyword(s):  
Natural Products ◽  
Natural Product ◽  
Western Europe ◽  
Central Nervous System Disease ◽  
Alzheimers Disease ◽  
Knowledge Maps ◽  
Visual Knowledge ◽  
System Disease ◽  
The Usa ◽  
Cooperative Institutions

The main objective of this review was to explore the research foci and emerging trends of application of natural products in AD from 1990 to 2019 and evaluated publications qualitatively and quantitatively. CiteSpace V. 4.0 was used to identify top authors, journals, institutions, countries, keywords, co-cited articles, and trends and obtain the visual knowledge maps. Results revealed that the USA, People’s Republic of China and India were the major research countries in this field, while the Western Europe and North America were the areas with frequent international cooperation. Moreover, there was a close collaboration between universities and research institutes. The J Alzheimers Dis was the most productive journal. Alzheimers disease, natural product, brain, central nervous system, disease, and oxidative stress are some of the high centrality and high frequency keywords in the co-occurrence analysis; Indicating Alzheimers disease and its pathogenesis and natural product remain the hotspots in the field. This paper provides an insight into the application of natural products in AD, and provides useful information for AD researchers to find potential collaborators and cooperative institutions.

Vergleich von MRT- und SPECT-Befunden bei Patienten mit zerebraler Mikroangiopathie

1991 ◽  
Vol 30 (05) ◽  
pp. 161-169 ◽  
Author(s):  
C. Weiller ◽  
R. Weigmann ◽  
H.-J. Kaiser ◽  
U. Büll ◽  
R. Schneider ◽  
...  
Keyword(s):  
White Matter Lesions ◽  
Central Nervous System Disease ◽  
Deep White Matter ◽  
Cranial Ct ◽  
System Disease ◽  
Ct Findings ◽  
Hmpao Spect ◽  
Significant Difference ◽  
Cerebral Microangiopathy ◽  
99Mtc Hmpao

Lacunar infarctions and periventricular hypodensity are assumed to be typical CT patterns of cerebral microangiopathy (MA). In 17 patients with such findings and in 6 controls without any signs of central nervous system disease cranial CT, MRT and 99mTc-HMPAO-SPECT were employed. In 7 patients with CT findings of minor MA demonstrated in comparison to controls no significant difference. In 10 cases with CT findings of pronounced MA periventricular rCBF was significantly reduced compared to controls. rCBF of temporal and parietal cortex were not diminished compared to controls. In 14 patients studied with MRT deep white matter lesions were found which appeared solitary, multiple or confluent. Employing 99mTc-HMPAO-SPECT, cerebral MA revealed rCBF reduction in periventricular brain tissue by cerebellar standardization.

Raccoon Roundworm Infection Associated with Central Nervous System Disease and Ocular Disease — Six States, 2013–2015

2016 ◽  
Vol 65 (35) ◽  
pp. 930-933 ◽  
Author(s):  
Anita D. Sircar ◽  
Francisca Abanyie ◽  
Dean Blumberg ◽  
Peter Chin-Hong ◽  
Katrina S. Coulter ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Central Nervous System Disease ◽  
Ocular Disease ◽  
Nervous System Disease ◽  
System Disease

Synthesis and Biological Evaluation of the Antimicrobial Natural Product Lipoxazolidinone A

2018 ◽  
Author(s):  
Jonathan J. Mills ◽  
Kaylib R. Robinson ◽  
Troy E. Zehnder ◽  
Joshua G. Pierce
Keyword(s):  
Natural Products ◽  
Natural Product ◽  
Mechanism Of Action ◽  
Marine Natural Products ◽  
Biological Evaluation ◽  
Lead Compounds ◽  
Follow Up Studies ◽  
Initial Resistance ◽  
Synthesis And Biological Evaluation

The lipoxazolidinone family of marine natural products, with an unusual 4-oxazolidinone heterocycle at their core, represents a new scaffold for antimicrobial discovery; however, questions regarding their mechanism of action and high lipophilicity have likely slowed follow-up studies. Herein, we report the first synthesis of lipoxazolidinone A, 15 structural analogs to explore its active pharmacophore, and initial resistance and mechanism of action studies. These results suggest that 4-oxazolidinones are valuable scaffolds for antimicrobial development and reveal simplified lead compounds for further optimization.

Unzipping Natural Products: Improved Natural Product Structure Predictions by Ensemble Modeling and Fingerprint Matching

2018 ◽  
Author(s):  
William A. Shirley ◽  
Brian P. Kelley ◽  
Yohann Potier ◽  
John H. Koschwanez ◽  
Robert Bruccoleri ◽  
...  
Keyword(s):  
Natural Products ◽  
Open Source ◽  
Natural Product ◽  
Gene Cluster ◽  
Public Domain ◽  
Product Structure ◽  
Fingerprint Matching ◽  
Ensemble Modeling ◽  
Chemical Structures ◽  
Source Gene

This pre-print explores ensemble modeling of natural product targets to match chemical structures to precursors found in large open-source gene cluster repository antiSMASH. Commentary on method, effectiveness, and limitations are enclosed. All structures are public domain molecules and have been reviewed for release.

EPIZOOTOLOGICAL FEATURES OF MODERN CATTLE LEUKEMIA

1970 ◽  
pp. 53-58
Author(s):  
V. V. Makarov ◽  
D. A. Lozovoy
Keyword(s):  
Dairy Cattle ◽  
Western Europe ◽  
Control Programs ◽  
Foreign Countries ◽  
Negative Order ◽  
Dairy Cattle Breeding ◽  
The Usa ◽  
Epizootic Process ◽  
National Programs

  Enzootic bovine leucosis (EBL) has been known for more than a century and a half. Its occurrence and registration may have historically been associated with intensive breeding of dairy cattle in Western Europe to increase target productivity. It is known that any limiting intervention in the nature of the animal organism is always accompanied by an uncontrolled and unpredictable change in the genotype of a wider range than the required, particularly negative order. In particular, a decrease in the resistance to macroorganisms and the possibility of the new diseases emergence, including infectious ones (for example, immunodeficiencies such as BLAD syndrome of black-motley cattle and stress syndrome in pigs, the occurrence of scrapie and other slow sheep infections). In the last two decades of the last century, in many disadvantaged countries, primarily Western European, national programs for the eradication of EBL have been developed and subsequently successfully implemented. First of all the motivation was the economy of dairy cattle breeding (mainly the extension of productive age, as well as the tightening of requirements in international trade in cattle and bull products, breeding, pricing, etc.). In an analytical article are reviewed the elements of epizootology of EBL in the foreign countries with special attention to the situation in the USA, scenarios of various control programs, and promising methods for assessing the role of infected animals in the epizootic process. A critical assessment of the problem of EBL in the Russian Federation is given, the reasons for the ineffectiveness of against leucosis measures are discussed.

Concept of Power Decentralization in Political Science and Approaches to its Methodological Study

2017 ◽  
pp. 229-235
Author(s):  
Halyna Kuzub
Keyword(s):  
Political Science ◽  
Moral Education ◽  
Symbolic Interactionism ◽  
Western Europe ◽  
Central Government ◽  
Local Level ◽  
Perfect State ◽  
Political Ideas ◽  
The Usa ◽  
Structural Functionalism

The problem of power decentralization is up to date in a modern political science. We can trace its historical genesis first in European and further in the USA political ideas. Decentralization of power was considered along with the study of a perfect state system, civil society and local self-government. It is argued that the major part of successful process of power decentralization in the Western Europe was due to the idea nature for their political culture. The article attempts to retrace the history of the idea of power decentralization. As a background of the investigations of such thinkers as J. Bodin, J. Althusius, J. Locke, J.-J. Rousseau, C.-L. Montesquieu, R. Owen, C. Fourier, J. S.Mill, T. Jefferson, A. de Tocqueville and M. Dragomanov were thoroughly investigated. The paper also considers the modern definitions of power decentralization. Likewise the value of structural functionalism, symbolic interactionism and constructivism are argued in terms of further surveys of power decentralization. To conclude, the author opines that civil servants training, their theoretical teaching and moral education have to become the main objectives in perspective investigations. Furthermore, the success of power decentralization depends not only on devoting authority by central government, but also on capacity of its implementation by deputies on the local level. Keywords: Decentralization of power, deconcentration of power, administrative and political decentralization, classical and non-classical philosophy, structural functionalism, symbolic interactionism, construc-tivism

Recent Progress Towards Synthesis of the Indolizidine Alkaloid 195B

2020 ◽  
Vol 17 (2) ◽  
pp. 82-90 ◽  
Author(s):  
Ghodsi Mohammadi Ziarani ◽  
Fatemeh Mohajer ◽  
Zohreh kheilkordi
Keyword(s):  
Natural Products ◽  
Natural Product ◽  
Recent Progress ◽  
Human Life ◽  
Natural Compounds ◽  
Biologically Active ◽  
Pharmaceutical Chemistry ◽  
Biological Perspective ◽  
Highly Active

Background: Natural products have been received attention due to their importance in human life as those are biologically active. In this review, there are some reports through different methods related to the synthesis of the indolizidine 195B which was extracted from poisonous frog; however, due to respect nature, the synthesis of natural compounds such as indolizidine has been attracted much attention among scientists and researchers. Objective: This review discloses the procedures and methods to provide indolizidine 195B from 1989 to 2018 due to their importance as a natural product. Conclusion: There are several methods to give rise to the indolizidine 195B as a natural product that is highly active from the biological perspective in pharmaceutical chemistry. In summary, many protocols for the preparations of indolizidine 195B from various substrates, several reagents, and conditions have been reported from different aromatic and aliphatic.

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