scholarly journals State-of-the-art review - A review on snake venom-derived antithrombotics: Potential therapeutics for COVID-19-associated thrombosis?

2021 ◽  
Author(s):  
Bhargab Kalita ◽  
Anthony J. Saviola ◽  
Stephen P. Samuel ◽  
Ashis K. Mukherjee
Keyword(s):  
Snake Venom ◽  
State Of The Art ◽  
Potential Therapeutics

scholarly journals MOLECULAR DOCKING STUDIES OF SNAKE VENOM SERINE PROTEASE OF SHARP-NOSED PIT VIPER WITH HESPERETIN

2018 ◽  
Vol 11 (6) ◽  
pp. 457
Author(s):  
Subhamay Panda ◽  
Iman Ehsan
Keyword(s):  
Molecular Docking ◽  
Serine Protease ◽  
Snake Venom ◽  
Inhibitory Activity ◽  
Serine Proteases ◽  
State Of The Art ◽  
The Novel ◽  
Docking Analysis ◽  
Docking Program ◽  
Molecular Docking Analysis

 Objective: The management of snake bite envenomation is a global challenge affecting millions of people. Immunotherapy is still regarded as the treatment of choice; however, their subsequent adverse effects restrict their potential use for therapy against snake venom poisoning. In recent years, more attention has been given to the exploration of indigenous medicinal plants for their outstanding benefits for the treatment of several diseases and disorders, including snake venom poisoning. Hesperetin is a naturally occurring compound derived from a flavanone glycoside, hesperidin and is obtained from various citrus fruits. It is known to possess significant inhibitory activity against snake venom serine proteases. The aim of our present study was to investigate the significant inhibitory action of hesperetin on thrombin-like serine protease from sharp-nosed pit viper (Deinagkistrodon acutus) snake venom.Methods: We have employed molecular docking analysis by implementing the state-of-the-art docking program to validate the hypothesis of the prospective inhibitory properties of hesperetin on thrombin-like serine proteases of snake venom. AutoDock 4.2, InterProSurf, MGLTools, and MTiAutoDock were utilized for the molecular docking analysis of thrombin-like serine protease obtained from the snake venom of sharp-nosed pit viper with the natural compound hesperetin.Results: The results generated from in silico based approach reveals the significant inhibitory role of hesperetin against thrombin-like snake venom proteases, which might lead to the drug designing of the inhibitors of snake venom serine proteases.Conclusion: The implementation of molecular docking analysis by the employment of state-of-the-art docking program supports the potential of inhibitory activity of naturally obtained hesperetin compound on thrombin-like serine proteases of snake venom. The generated in silico results suggests that the novel structure hesperetin - flavanone might act as a potent inhibitor of thrombin-like snake venom proteases, and unlocks the possibilities for designing drugs of the inhibitors of snake venom serine proteases. Moreover, the investigation of the novel compound obtained from natural sources for their inhibitory activity against snake venom serine proteases would lead to the discovery of newer inhibitory compound from a highly uninvestigated research arena.

scholarly journals Extracellular Vesicles as Potential Therapeutics for Inflammatory Diseases

2021 ◽  
Vol 22 (11) ◽  
pp. 5487
Author(s):  
Hee Sook Hwang ◽  
Hyosuk Kim ◽  
Geonhee Han ◽  
Jong Won Lee ◽  
Kwangmeyung Kim ◽  
...  
Keyword(s):  
Immune Response ◽  
Nucleic Acids ◽  
Extracellular Vesicles ◽  
Surface Engineering ◽  
State Of The Art ◽  
Inflammatory Diseases ◽  
Target Specificity ◽  
Current State ◽  
Potential Therapeutics

Extracellular vesicles (EV) deliver cargoes such as nucleic acids, proteins, and lipids between cells and serve as an intercellular communicator. As it is revealed that most of the functions associated to EVs are closely related to the immune response, the important role of EVs in inflammatory diseases is emerging. EVs can be functionalized through EV surface engineering and endow targeting moiety that allows for the target specificity for therapeutic applications in inflammatory diseases. Moreover, engineered EVs are considered as promising nanoparticles to develop personalized therapeutic carriers. In this review, we highlight the role of EVs in various inflammatory diseases, the application of EV as anti-inflammatory therapeutics, and the current state of the art in EV engineering techniques.

Venoms and Isolated Toxins from Snakes of Medical Impact in the Northeast Argentina: State of the Art. Potential Pharmacological Applications

2019 ◽  
Vol 19 (22) ◽  
pp. 1962-1980 ◽  
Author(s):  
María Emilia Garcia Denegri ◽  
Soledad Bustillo ◽  
Claudia Carolina Gay ◽  
Andrea Van De Velde ◽  
Gabriela Gomez ◽  
...  
Keyword(s):  
Snake Venom ◽  
State Of The Art ◽  
Protein Composition ◽  
Cross Reaction ◽  
Medical Emergency ◽  
Venomous Snakes ◽  
Snake Envenomations ◽  
Pharmacological Application

: Among the ophidians that inhabit the Northeast of Argentina, the genus Bothrops such as B. alternatus and B. diporus species (also known as yararás) and Crotalus durisus terrificus (named cascabel), represent the most studied snake venom for more than thirty years. These two genera of venomous snakes account for the majority of poisonous snake envenomations and therefore, constitute a medical emergency in this region. This review presents a broad description of the compiled knowledge about venomous snakebite: its pathophysiological action, protein composition, isolated toxins, toxin synergism, toxin-antitoxin cross-reaction assays. Properties of some isolated toxins support a potential pharmacological application.

Practical Picture Processing

1974 ◽  
Vol 32 ◽  
pp. 338-339
Author(s):  
T. A. Welton
Keyword(s):  
Radiation Damage ◽  
Coherence Length ◽  
Spatial Information ◽  
State Of The Art ◽  
Coherent Radiation ◽  
The State ◽  
Energy Spread ◽  
Electron Micrograph ◽  
Picture Processing ◽  
Molecular Skeleton

Various authors have emphasized the spatial information resident in an electron micrograph taken with adequately coherent radiation. In view of the completion of at least one such instrument, this opportunity is taken to summarize the state of the art of processing such micrographs. We use the usual symbols for the aberration coefficients, and supplement these with £ and 6 for the transverse coherence length and the fractional energy spread respectively. He also assume a weak, biologically interesting sample, with principal interest lying in the molecular skeleton remaining after obvious hydrogen loss and other radiation damage has occurred.

A Macintosh Interface for the Cameca Camebax-Micro Electron Microprobe

1990 ◽  
Vol 48 (1) ◽  
pp. 438-439
Author(s):  
Carl E. Henderson
Keyword(s):  
Electron Microprobe ◽  
Processing Speed ◽  
Word Processing ◽  
State Of The Art ◽  
Computer Control ◽  
Third Party ◽  
Disk Storage ◽  
The Past ◽  
User Facility ◽  
Instrument Control

Over the past few years it has become apparent in our multi-user facility that the computer system and software supplied in 1985 with our CAMECA CAMEBAX-MICRO electron microprobe analyzer has the greatest potential for improvement and updating of any component of the instrument. While the standard CAMECA software running on a DEC PDP-11/23+ computer under the RSX-11M operating system can perform almost any task required of the instrument, the commands are not always intuitive and can be difficult to remember for the casual user (of which our laboratory has many). Given the widespread and growing use of other microcomputers (such as PC’s and Macintoshes) by users of the microprobe, the PDP has become the “oddball” and has also fallen behind the state-of-the-art in terms of processing speed and disk storage capabilities. Upgrade paths within products available from DEC are considered to be too expensive for the benefits received. After using a Macintosh for other tasks in the laboratory, such as instrument use and billing records, word processing, and graphics display, its unique and “friendly” user interface suggested an easier-to-use system for computer control of the electron microprobe automation. Specifically a Macintosh IIx was chosen for its capacity for third-party add-on cards used in instrument control.

Current Issues: Advanced Digital Technology for Supervising Graduate Clinicians

2010 ◽  
Vol 20 (1) ◽  
pp. 9-13 ◽  
Author(s):  
Glenn Tellis ◽  
Lori Cimino ◽  
Jennifer Alberti
Keyword(s):  
Real Time ◽  
Digital Technology ◽  
Clinical Training ◽  
State Of The Art ◽  
Clinical Skills ◽  
Slow Motion ◽  
Video Capture ◽  
Microsoft Excel ◽  
Clinical Supervisors ◽  
Training And Supervision

Abstract The purpose of this article is to provide clinical supervisors with information pertaining to state-of-the-art clinic observation technology. We use a novel video-capture technology, the Landro Play Analyzer, to supervise clinical sessions as well as to train students to improve their clinical skills. We can observe four clinical sessions simultaneously from a central observation center. In addition, speech samples can be analyzed in real-time; saved on a CD, DVD, or flash/jump drive; viewed in slow motion; paused; and analyzed with Microsoft Excel. Procedures for applying the technology for clinical training and supervision will be discussed.

Behavioral Genetics: Concepts for Research and Practice in Language Development and Disorders

1995 ◽  
Vol 38 (5) ◽  
pp. 1126-1142 ◽  
Author(s):  
Jeffrey W. Gilger
Keyword(s):  
Language Development ◽  
Behavioral Genetics ◽  
State Of The Art ◽  
Genetic Research ◽  
Great Promise ◽  
Behavioral Genetic ◽  
Fine Grained ◽  
Future Goals ◽  
Current State ◽  
Research Designs

This paper is an introduction to behavioral genetics for researchers and practioners in language development and disorders. The specific aims are to illustrate some essential concepts and to show how behavioral genetic research can be applied to the language sciences. Past genetic research on language-related traits has tended to focus on simple etiology (i.e., the heritability or familiality of language skills). The current state of the art, however, suggests that great promise lies in addressing more complex questions through behavioral genetic paradigms. In terms of future goals it is suggested that: (a) more behavioral genetic work of all types should be done—including replications and expansions of preliminary studies already in print; (b) work should focus on fine-grained, theory-based phenotypes with research designs that can address complex questions in language development; and (c) work in this area should utilize a variety of samples and methods (e.g., twin and family samples, heritability and segregation analyses, linkage and association tests, etc.).

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