Alternagin-C binding to α2β1 integrin controls matrix metalloprotease-9 and matrix metalloprotease-2 in breast tumor cells and endothelial cells
Conclusion These results demonstrate that α 2 β 1 integrin controls MMP expression and reveal this integrin as a target for the development of antiangiogenic and antimetastatic therapies. (Source: Journal of Venomous Animals and Toxins including Tropical Diseases)
Source: Journal of Venomous Animals and Toxins including Tropical Diseases - May 24, 2018 Category: Tropical Medicine Source Type: research

Hemolytic, anticancer and antigiardial activity of Palythoa caribaeorum venom
Conclusion These results suggest that P. caribaeorum venom contains compounds with potential therapeutic value against microorganisms and cancer. (Source: Journal of Venomous Animals and Toxins including Tropical Diseases)
Source: Journal of Venomous Animals and Toxins including Tropical Diseases - May 24, 2018 Category: Tropical Medicine Source Type: research

Combination of heterologous fibrin sealant and bioengineered human embryonic stem cells to improve regeneration following autogenous sciatic nerve grafting repair
Conclusions Overall, the present data demonstrated that transgenic embryonic stem cells, engineered to overexpress FGF-2 in an inducible fashion, could be employed to support regeneration aiming at the recovery of both motor and sensory functions. (Source: Journal of Venomous Animals and Toxins including Tropical Diseases)
Source: Journal of Venomous Animals and Toxins including Tropical Diseases - May 24, 2018 Category: Tropical Medicine Source Type: research

Non-neurotoxic activity of Malayan krait (Bungarus candidus) venom from Thailand
Conclusions: This study found that Malayan krait venoms from both populations possess myotoxic, cytotoxic and nephrotoxic activities. These findings may aid in clinical diagnosis and treatment of envenomed patients in the future. (Source: Journal of Venomous Animals and Toxins including Tropical Diseases)
Source: Journal of Venomous Animals and Toxins including Tropical Diseases - May 7, 2018 Category: Tropical Medicine Source Type: research

Scorpionism by Hemiscorpius spp. in Iran: a review
Abstract Scorpions are distributed throughout Iran and the genus Hemiscorpius is particularly important in this region. Hemiscorpius lepturus is the most significant species within the genus in the country. Since scorpionism provoked by Hemiscorpius comprises a medical emergency, the present study is focused on this important issue. In order to perform the present work, a review of the medical and health-related literature was carried out in several databases. The current findings indicate that six species of Hemiscorpius are found in 15 states of Iran, mainly in the south and southwest. Deaths caused by stings were report...
Source: Journal of Venomous Animals and Toxins including Tropical Diseases - May 7, 2018 Category: Tropical Medicine Source Type: research

Peptidomic investigation of Neoponera villosa venom by high-resolution mass spectrometry: seasonal and nesting habitat variations
Conclusion: There are substantial differences among the venom of N. villosa ants collected in different seasons and from different nest habitats. The venom composition is affected by climate changes that influence prey availability and predator presence. Clearly, nano-LC-MS boosted the knowledge about ant venom, a rich source of unexplored and promising bioactive compounds. (Source: Journal of Venomous Animals and Toxins including Tropical Diseases)
Source: Journal of Venomous Animals and Toxins including Tropical Diseases - March 26, 2018 Category: Tropical Medicine Source Type: research

Biochemical characterization of a phospholipase A2 homologue from the venom of the social wasp Polybia occidentalis
Conclusion: This is the first report of an enzymatically inactive PLA2 isolated from wasp venom, similar to snake PLA2 homologues. (Source: Journal of Venomous Animals and Toxins including Tropical Diseases)
Source: Journal of Venomous Animals and Toxins including Tropical Diseases - March 26, 2018 Category: Tropical Medicine Source Type: research

Antivenom therapy: efficacy of premedication for the prevention of adverse reactions
Abstract: Antivenoms or antitoxins have been effectively used for more than a century. During this time, these products have always proven to be highly effective in the treatment of infections and envenomations. However, antivenoms did not exhibit good safety results in their initial applications. After many improvements, antivenoms have substantially better safety profiles but still have some side effects. Due to the occurrence of adverse reactions, the practice of using premedication with the intent to decrease side effects has become accepted or mandatory in many countries. The drugs used for premedication belong to the...
Source: Journal of Venomous Animals and Toxins including Tropical Diseases - March 26, 2018 Category: Tropical Medicine Source Type: research

Introducing the CONSORT extension to pilot trials: enhancing the design, conduct and reporting of pilot or feasibility trials
Abstract This editorial provides a brief overview of the importance of pilot or feasibility trials or studies, the challenges with current practices in their conduct and reporting, an introduction to the Consolidated Standards of Reporting Trials (CONSORT) extension to pilot trials aimed at improving their reporting, along with some key resources on aspects related to pilot and feasibility studies. (Source: Journal of Venomous Animals and Toxins including Tropical Diseases)
Source: Journal of Venomous Animals and Toxins including Tropical Diseases - March 26, 2018 Category: Tropical Medicine Source Type: research

Actiflagelin, a new sperm activator isolated from Walterinnesia aegyptia venom using phenotypic screening
Conclusions This report demonstrates the feasibility of identifying profertility compounds that may be of therapeutic potential for infertility cases where motility is an issue. (Source: Journal of Venomous Animals and Toxins including Tropical Diseases)
Source: Journal of Venomous Animals and Toxins including Tropical Diseases - February 22, 2018 Category: Tropical Medicine Source Type: research

Effects of Brazilian scorpion venoms on the central nervous system
Abstract In Brazil, the scorpion species responsible for most severe incidents belong to the Tityus genus and, among this group, T. serrulatus, T. bahiensis, T. stigmurus and T. obscurus are the most dangerous ones. Other species such as T. metuendus, T. silvestres, T. brazilae, T. confluens, T. costatus, T. fasciolatus and T. neglectus are also found in the country, but the incidence and severity of accidents caused by them are lower. The main effects caused by scorpion venoms - such as myocardial damage, cardiac arrhythmias, pulmonary edema and shock - are mainly due to the release of mediators from the autonomic nervous...
Source: Journal of Venomous Animals and Toxins including Tropical Diseases - February 22, 2018 Category: Tropical Medicine Source Type: research

The evolution and distribution of noxious species of scorpions (Arachnida: Scorpiones)
Abstract This contribution attempts to bring some general information on the evolution and, in particular, on the geographic distribution of scorpion species noxious to humans. Since 95% of the scorpions incidents are generated by specimens of the family Buthidae C. L. Koch, the analysis will be limited to this familial group. As in previous similar contributions, the content of this work is mostly addressed to non-specialists whose research embraces scorpions in several fields such as venom toxins and public health. Only in recent years, efforts have been made to create better links between ‘ academic scorpion experts â...
Source: Journal of Venomous Animals and Toxins including Tropical Diseases - February 22, 2018 Category: Tropical Medicine Source Type: research

BaltDC: purification, characterization and infrared spectroscopy of an antiplatelet DC protein isolated from Bothrops alternatus snake venom
Conclusions: BaltDC may be of medical interest since it was able to inhibit platelet aggregation. (Source: Journal of Venomous Animals and Toxins including Tropical Diseases)
Source: Journal of Venomous Animals and Toxins including Tropical Diseases - February 8, 2018 Category: Tropical Medicine Source Type: research

In vitro characterization of jellyfish venom fibrin(ogen)olytic enzymes from Nemopilema nomurai
Conclusion: The present study showed that N. nomurai jellyfish venom has a chymotrypsin-like serine protease with fibrinolytic activity. Such information might be useful for developing clinical management of jellyfish envenomation and pharmacological agents with therapeutic potential for thr ombotic diseases in the future. (Source: Journal of Venomous Animals and Toxins including Tropical Diseases)
Source: Journal of Venomous Animals and Toxins including Tropical Diseases - February 8, 2018 Category: Tropical Medicine Source Type: research

Isolation and biochemical characterization of bradykinin-potentiating peptides from Bitis gabonica rhinoceros
Conclusions: So far, few BPPs are described in Viperinae, and based on the sequenced peptides, two non-canonical sequences were detected. The possible clinical role of this new peptides remains unclear. (Source: Journal of Venomous Animals and Toxins including Tropical Diseases)
Source: Journal of Venomous Animals and Toxins including Tropical Diseases - February 8, 2018 Category: Tropical Medicine Source Type: research