scholarly journals COELENTERATE TOXINS, ITS PHARMACEUTICAL AND THERAPEUTIC EFFECTS

2021 ◽  
pp. 11-19
Author(s):  
SIMRAN SHARMA ◽  
RAVI KANT UPADHYAY
Keyword(s):  
Skeletal Muscles ◽  
Therapeutic Interventions ◽  
Therapeutic Effects ◽  
Human Beings ◽  
Venom Toxin ◽  
Immunological Reactions ◽  
Parasitic Activity ◽  
Species Specific ◽  
Available Information ◽  
Diverse Biological Activity

Present review article emphasizes species specific coelenterate toxins, its pharmaceutical and therapeutic effects. Most of the coelenterates inflict venom accidently by using nematocysts found on arms. These animals very quickly do massive and multiple inflictions of venom which causes cardiotoxicity that leads to the death of human beings. Coelenterate venom toxin groups differ in their composition and show diverse biological activity i.e. cytolytic or neurotoxic, hemolytic, anti-parasitic activity, α-amylase inhibitor activity, and analgesic activity anti-cancerous and antitumor activity, anti-inflammatory and antimicrobial activity. Coelenterate venom initiates toxic and immunological reactions exert their effects by modifying the properties of the ion channels involved in action potential generation in nerve, heart, and skeletal muscles. This article suggests available information, on coelenterate toxins could be used to develop potential therapeutic interventions for various human diseases and disorders.

The Epitome of Novel Techniques and Targeting Approaches in Drug Delivery for Treating Lymphatic Filariasis

2020 ◽  
Vol 21 (12) ◽  
pp. 1250-1263
Author(s):  
Saurabh Shrivastava ◽  
Anshita Gupta ◽  
Chanchal Deep Kaur
Keyword(s):  
Lymphatic Filariasis ◽  
Neglected Tropical Diseases ◽  
Therapeutic Interventions ◽  
Tropical Diseases ◽  
Human Beings ◽  
Therapeutic Approaches ◽  
Preventive Chemotherapy ◽  
Bioactive Substances ◽  
Lymphatic Diseases ◽  
Life Threatening

Background: Lymphatic filariasis is a pervasive and life-threatening disease for human beings. Currently, 893 million people in 49 countries worldwide affected by lymphatic filariasis as per WHO statistics. The concealed aspects of lymphatic diseases such as delayed disease detection, inappropriate disease imaging, the geographical outbreak of infection, and lack of preventive chemotherapy have brought this epidemic to the edge of Neglected Tropical Diseases. Many medications and natural bioactive substances have seen to promote filaricidal activity against the target parasitic species. However, the majority of failures have occurred in pharmaceutical and pharmacokinetic issues. Objective: The purpose of the study is to focus on the challenges and therapeutic issues in the treatment of filariasis. The review brings novel techniques and therapeutic approaches for combating lymphatic filariasis. It also offers significant developments and opportunities for such therapeutic interventions. Conclusion: Through this review, an attempt has made to critically evaluate the avenues of innovative pharmaceuticals and molecular targeting approaches to bring an integrated solution to combat lymphatic filariasis.

Profile of a mammalian sperm receptor

Development ◽  
1990 ◽  
Vol 108 (1) ◽  
pp. 1-17 ◽  
Author(s):  
P.M. Wassarman
Keyword(s):  
Gene Expression ◽  
Zona Pellucida ◽  
Specific Gene ◽  
Mammalian Development ◽  
Unique Nature ◽  
Mammalian Fertilization ◽  
Species Specific ◽  
Available Information ◽  
Mammalian Eggs ◽  
Sperm Receptor

Complementary molecules on the surface of eggs and sperm are responsible for species-specific interactions between gametes during fertilization in both plants and animals. In this essay, several aspects of current research on the mouse egg receptor for sperm, a zona pellucida glycoprotein called ZP3, are addressed. These include the structure, synthesis, and functions of the sperm receptor during oogenesis and fertilization in mice. Several conclusions are drawn from available information. These include (I) ZP3 is a member of a unique class of glycoproteins found exclusively in the extracellular coat (zona pellucida) of mammalian eggs. (II) ZP3 gene expression is an example of oocyte-specific and, therefore, sex-specific gene expression during mammalian development. (III) ZP3 is a structural glycoprotein involved in assembly of the egg extracellular coat during mammalian oogenesis. (IV) ZP3 is a sperm receptor involved in carbohydrate-mediated gamete recognition and adhesion during mammalian fertilization. (V) ZP3 is an inducer of sperm exocytosis (acrosome reaction) during mammalian fertilization. (VI) ZP3 participates in the secondary block to polyspermy following fertilization in mammals. (VII) The extracellular coat of other mammalian eggs contains a glycoprotein that is functionally analogous to mouse ZP3. The unique nature, highly restricted expression, and multiple roles of ZP3 during mammalian development make this glycoprotein a particularly attractive subject for investigation at both the cellular and molecular levels.

scholarly journals The Numbers Needed to Treat for Neurological Disorders

2005 ◽  
Vol 32 (4) ◽  
pp. 440-449 ◽  
Author(s):  
Miguel Bussière ◽  
Samuel Wiebe
Keyword(s):  
Absolute Risk ◽  
Time Frame ◽  
Therapeutic Interventions ◽  
Cochrane Library ◽  
Number Needed To Treat ◽  
Therapeutic Effects ◽  
Surgical Interventions ◽  
Blood Patch ◽  
Numbers Needed To Treat ◽  
Meta Analyses

ABSTRACT:Background:Numerous therapeutic interventions have been developed in the neurosciences. Clinicians need summary measures about efficacy of therapies that derive from the best available evidence, and that can be readily extrapolated to clinical practice. The number needed to treat (NNT) is intuitive and clinically applicable. We provide clinicians with a single source that summarizes important therapies in the main neurological and neurosurgical areas.Methods:Critically appraised evidence about therapies in the neurosciences was obtained from meta-analyses in all neurosciences groups in the Cochrane library, and from critically appraised topics at the University of Western Ontario. Therapies were included if they were deemed relevant and if outcomes were dichotomous. For each therapy, we obtained absolute risk differences and their 95% confidence intervals (CI), the corresponding NNTs, control and experimental event rates, and the time-frame of the outcome assessment.Results:We assembled a table of NNTs for 87 interventions in ten disease categories, deriving from meta-analyses (70%) or randomized controlled trials (30%), and assessing surgical interventions (7%), procedures (9%) or pharmacological treatments (84%). The NNTs varied widely, ranging from 1 in the use of epidural blood patch for post-dural puncture headache to 4608 for meningococcal vaccination. Preventative interventions had substantially larger NNTs. Time-frames were inappropriately short for many chronic conditions.Conclusions:Large collections of NNTs provide useful, updateable summaries of therapeutic effects in the neurosciences, an increasingly interventional clinical field.

scholarly journals Medicinally Important Herbal Flowers in Sri Lanka

2019 ◽  
Vol 2019 ◽  
pp. 1-18 ◽  
Author(s):  
S. L. A. Gunawardana ◽  
W. J. A. B. N. Jayasuriya
Keyword(s):  
Chemical Composition ◽  
Sri Lanka ◽  
Traditional Medicine ◽  
Therapeutic Effects ◽  
Syzygium Aromaticum ◽  
Human Beings ◽  
Plant Resources ◽  
Plant Parts ◽  
Anticancer Properties ◽  
Medical Issues

Background. The plant kingdom is rich with a numerous number of plants with various medical properties which can be used to treat various medical issues. Sri Lanka is a country full of biodiversity which is gifted with many plant resources. It has a rich history of traditional medicine systems consisting of Ayurveda, Unani, and Deshiya Chikitsa, where these plant resources are used as remedies for the diseases. In the traditional medicine system, various plant parts such as leaves, roots, fruits, flowers, and bark are used to treat disease conditions. Although less attention is paid to the medicinal importance of the flowers, some of them have been used to treat many diseases from the ancient time. Some properties of the flowers may differ from the properties of the other plant parts. For example, Sesbania grandiflora (Katuru murunga) flowers have shown anticancer properties against various cell models whereas some flowers have shown antispermatogenic properties. Flowers of Woodfordia floribunda (Militta) are added as fermenting agents in the preparation of Arishtas in Ayurveda. Also the most popular Clove oil is obtained from the flower buds of Syzygium aromaticum (Karabu-neti) which is used to treat toothaches since it has antibiotic and antiseptic properties. This article gives an overview of herbal flowers used in the traditional medicine system of Sri Lanka and their pharmacological importance. Method. A comprehensive literature survey was done on the medicinally important flowers in Sri Lanka. Data was collected from Libraries of Ayurveda in Sri Lanka and from scientific databases. Results. According to the survey many flowers are used as astringent, cardiac tonic, and febrifuge. Also some flowers are used to treat dysentery, diarrhoea, and indigestion. Some flowers are useful in the treatment of bleeding piles while some are useful in the treatment of asthma and bronchitis. Conclusion. It was revealed that there are many flowers with valuable therapeutic effects. Traditional medicine systems prevailing in Sri Lanka have made use of these flowers with therapeutic effects to cure so many diseases. The review of medicinally important herbal flowers provides knowledge and pharmacological leads which will help for the wellbeing of the human beings. Although there are phytochemical studies done to identify the chemical compounds on some flowers, chemical composition of many flowers remains unrevealed. So further studies need to be done to identify the chemical composition of these flowers.

scholarly journals New Perspectives on Innovative Drug Discovery: An Overview

2010 ◽  
Vol 13 (3) ◽  
pp. 450 ◽  
Author(s):  
Si Yuan Pan ◽  
Shan Pan ◽  
Zhi-Ling Yu ◽  
Dik-Lung Ma ◽  
Si-Bao Chen ◽  
...  
Keyword(s):  
Drug Discovery ◽  
Wide Spectrum ◽  
Therapeutic Interventions ◽  
Biomedical Science ◽  
Innovative Drug ◽  
Alternative Medicines ◽  
Traditional Remedies ◽  
Available Information ◽  
Rate Of Success ◽  
Total Sales

Despite advances in technology, drug discovery is still a lengthy, expensive, difficult, and inefficient process, with a low rate of success. Today, advances in biomedical science have brought about great strides in therapeutic interventions for a wide spectrum of diseases. The advent of biochemical techniques and cutting-edge bio/chemical technologies has made available a plethora of practical approaches to drug screening and design. In 2010, the total sales of the global pharmaceutical market will reach 600 billion US dollars and expand to over 975 billion dollars by 2013. The aim of this review is to summarize available information on contemporary approaches and strategies in the discovery of novel therapeutic agents, especially from the complementary and alternative medicines, including natural products and traditional remedies such as Chinese herbal medicine.

scholarly journals Epigenetic Alterations in Muscular Disorders

2012 ◽  
Vol 2012 ◽  
pp. 1-12 ◽  
Author(s):  
Chiara Lanzuolo
Keyword(s):  
Dna Sequences ◽  
Molecular Mechanisms ◽  
Neuromuscular Disorders ◽  
Expression Patterns ◽  
Normal Subjects ◽  
Therapeutic Interventions ◽  
Epigenetic Mechanisms ◽  
Muscular Disorders ◽  
Quality Stability ◽  
Available Information

Epigenetic mechanisms, acting via chromatin organization, fix in time and space different transcriptional programs and contribute to the quality, stability, and heritability of cell-specific transcription programs. In the last years, great advances have been made in our understanding of mechanisms by which this occurs in normal subjects. However, only a small part of the complete picture has been revealed. Abnormal gene expression patterns are often implicated in the development of different diseases, and thus epigenetic studies from patients promise to fill an important lack of knowledge, deciphering aberrant molecular mechanisms at the basis of pathogenesis and diseases progression. The identification of epigenetic modifications that could be used as targets for therapeutic interventions could be particularly timely in the light of pharmacologically reversion of pathological perturbations, avoiding changes in DNA sequences. Here I discuss the available information on epigenetic mechanisms that, altered in neuromuscular disorders, could contribute to the progression of the disease.

scholarly journals Chemical and immunochemical characteristics of tropomyosins from striated and smooth muscle

1974 ◽  
Vol 141 (1) ◽  
pp. 43-49 ◽  
Author(s):  
Peter Cummins ◽  
S. Victor Perry
Keyword(s):  
Skeletal Muscle ◽  
Smooth Muscle ◽  
Cardiac Muscle ◽  
Skeletal Muscles ◽  
Striated Muscle ◽  
Β Subunit ◽  
Muscle Type ◽  
Amphibian Species ◽  
Species Specific ◽  
Immunochemical Characteristics

1. On electrophoresis in dissociating conditions the tropomyosins isolated from skeletal muscles of mammalian, avian and amphibian species migrated as two components. These were comparable with the α and β subunits of tropomyosin present in rabbit skeletal muscle. 2. The α and β components of all skeletal-muscle tropomyosins contained 1 and 2 residues of cysteine per 34000g respectively. 3. The ratio of the amounts of α and β subunit present in skeletal muscle tropomyosins was characteristic for the muscle type. Muscle consisting of slow red fibres contained a greater proportion of β-tropomyosin than muscles consisting predominantly of white fast fibres. 4. Mammalian and avian cardiac muscle tropomyosins consisted of α-tropomyosin only. 5. Mammalian and avian smooth-muscle tropomyosins differed both chemically and immunologically from striated-muscle tropomyosins. 6. Antibody raised against rabbit skeletal α-tropomyosin was species non-specific, reacting with all other striated muscle α-tropomyosin subunits tested. 7. Antibody raised against rabbit skeletal β-tropomyosin subunit was species-specific.

Social Aesthetics and Mental Health–Theory and Practice

2017 ◽  
Vol 41 (S1) ◽  
pp. S51-S51
Author(s):  
M. Musalek
Keyword(s):  
Intellectual History ◽  
Interpersonal Relationships ◽  
Aesthetic Experience ◽  
Theory And Practice ◽  
Therapeutic Interventions ◽  
Human Beings ◽  
Social Aesthetics ◽  
European Intellectual History ◽  
Competing Interest ◽  
The Individual

The Hows of dealing with life and with our fellow human beings is the main focus of scientific endeavor of social aesthetics as a multidisciplinary research domain. This knowledge about the Hows of our social coexistence in general and in preventative and curative medicine in particular provides the indispensable social aesthetics foundation for therapeutic interventions in which the individual once more becomes the measure of all things and activities. European intellectual history teaches us that beauty is not just an adornment to life but is also a major source of strength for our life. Moreover, the positive aesthetic experience also has healing power. Social aesthetics that wishes also to be understood as the science of beauty in interpersonal relationships provides us with knowledge that in medical-therapeutic practice becomes a key pillar of human-centred approaches to prevention and treatment.Disclosure of interestThe author declares that he has no competing interest.

scholarly journals Respiratory Syncytial Virus (RSV) Fusion Protein Subunit F2, Not Attachment Protein G, Determines the Specificity of RSV Infection

2003 ◽  
Vol 77 (8) ◽  
pp. 4609-4616 ◽  
Author(s):  
Jörg Schlender ◽  
Gert Zimmer ◽  
Georg Herrler ◽  
Karl-Klaus Conzelmann
Keyword(s):  
Respiratory Syncytial Virus ◽  
Peripheral Blood Lymphocytes ◽  
Human Cells ◽  
Protein G ◽  
Human Beings ◽  
Protein Subunit ◽  
Attachment Protein ◽  
Specific Manner ◽  
Syncytial Virus ◽  
Species Specific

ABSTRACT Human respiratory syncytial virus (HRSV) and bovine RSV (BRSV) infect human beings and cattle in a species-specific manner. We have here analyzed the contribution of RSV envelope proteins to species-specific entry into cells. In contrast to permanent cell lines, primary cells of human or bovine origin, including differentiated respiratory epithelia, peripheral blood lymphocytes, and macrophages, showed a pronounced species-specific permissivity for HRSV and BRSV infection, respectively. Recombinant BRSV deletion mutants lacking either the small hydrophobic (SH) protein gene or both SH and the attachment glycoprotein (G) gene retained their specificity for bovine cells, whereas corresponding mutants carrying the HRSV F gene specifically infected human cells. To further narrow the responsible region of F, two reciprocal chimeric F constructs were assembled from BRSV and HRSV F1 and F2 subunits. The specificity of recombinant RSV carrying only the chimeric F proteins strictly correlated with the origin of the membrane-distal F2 domain. A contribution of G to the specificity of entry could be excluded after reintroduction of BRSV or HRSV G. Virus with F1 and G from BRSV and with only F2 from HRSV specifically infected human cells, whereas virus expressing F1 and G from HRSV and F2 from BRSV specifically infected bovine cells. The introduction of G enhanced the infectivities of both chimeric viruses to equal degrees. Thus, the role of the nominal attachment protein G is confined to facilitating infection in a non-species-specific manner, most probably by binding to cell surface glycosaminoglycans. The identification of the F2 subunit as the determinant of RSV host cell specificity facilitates identification of virus receptors and should allow for development of reagents specifically interfering with RSV entry.

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