Molecules, Vol. 24, Pages 3886: Recent Advances in the Discovery of Novel Antiprotozoal Agents

Molecules, Vol. 24, Pages 3886: Recent Advances in the Discovery of Novel Antiprotozoal Agents Molecules doi: 10.3390/molecules24213886 Authors: Lee Kim Hayat Shin Parasitic diseases have serious health, social, and economic impacts, especially in the tropical regions of the world. Diseases caused by protozoan parasites are responsible for considerable mortality and morbidity, affecting more than 500 million people worldwide. Globally, the burden of protozoan diseases is increasing and is been exacerbated because of a lack of effective medication due to the drug resistance and toxicity of current antiprotozoal agents. These limitations have prompted many researchers to search for new drugs against protozoan parasites. In this review, we have compiled the latest information (2012–2017) on the structures and pharmacological activities of newly developed organic compounds against five major protozoan diseases, giardiasis, leishmaniasis, malaria, trichomoniasis, and trypanosomiasis, with the aim of showing recent advances in the discovery of new antiprotozoal drugs.
Source: Molecules - Category: Chemistry Authors: Tags: Review Source Type: research

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This study provides baseline information for better understanding the status of parasitic infections in Palestine and compares their epidemiology between the West Bank and Gaza Strip. Appropriate control measures and health education directed to the public about preventive measures should be considered to raise awareness about parasitic infections to lower their incidences and burden in Palestine. PMID: 31769396 [PubMed - as supplied by publisher]
Source: The American Journal of Tropical Medicine and Hygiene - Category: Tropical Medicine Authors: Tags: Am J Trop Med Hyg Source Type: research
Wow - we received so many excellent comments on how parasites and the number 5 go together! Here are many of them - in no particular order - for your viewing pleasure:Pentatrichomonas hominis is a nonpathogenic intestinal flagellate named for its 5 flagella (penta from the Greek pente, meaning five + trich, pertaining to hair [flagella]). By Neil Anderson and Bernardino Rocha.There are 5 lobes of the lung, and all can be infected by Paragonimusspecies. By Brian Duresko.The are 5Plasmodiumspecies that are responsible for the bulk of malaria in humans:P. falciparum, P. vivax, P. ovale, P. malariae, andP. knowlesi(t...
Source: Creepy Dreadful Wonderful Parasites - Category: Parasitology Source Type: blogs
Conclusions Nucleoside hydrolases are vital enzymes for the replication of Leishmania, conserved phylogenetic marker of the genus and strong-specific immunogens. We demonstrated that NH36 is an excellent target for chemotherapy of visceral leishmaniasis. Searching for the most immunogenic fraction of promastigotes of Leishmania we described the FML antigen of L. (L.) donovani, that has as its main component, the NH36 Nucleoside hydrolase. We developed second–generation vaccines with the FML and the NH36 native antigens, and with the NH36 recombinant protein. In addition, we obtained a third generation vaccine based ...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
International travel is rising quickly worldwide. Many people travel to tropical and subtropical areas, where there has been increasing exposure of travelers to infectious pathogens. Ocular parasitic infections are more prevalent in these geographical areas and they can lead to morbidity and mortality, often due to late or misdiagnosis due to the unfamiliarity of health staff with thesediseases. This is an up-to-date comprehensive review article that familiarizes physicians with ocular signs and symptoms, treatment, prevention, and geographic distribution of some parasites associated with travel.Keywords:Acanthamoeba, Amer...
Source: International Journal of Preventive Medicine - Category: International Medicine & Public Health Source Type: research
by Kelly M. Hennessey, Ilse C. Rogiers, Han-Wei Shih, Matthew A. Hulverson, Ryan Choi, Molly C. McCloskey, Grant R. Whitman, Lynn K. Barrett, Ethan A. Merritt, Alexander R. Paredez, Kayode K. Ojo There is need for a more efficient cell-based assay amenable to high-throughput drug screening againstGiardia lamblia. Here, we report the development of a screening method utilizingG.lamblia engineered to express red-shifted firefly luciferase. Parasite growth and replication were quantified using D-luciferin as a substrate in a bioluminescent read-out platform. This assay was validated for reproducibility and reliability agains...
Source: PLoS Neglected Tropical Diseases - Category: Tropical Medicine Authors: Source Type: research
LITFL • Life in the Fast Lane Medical Blog LITFL • Life in the Fast Lane Medical Blog - Emergency medicine and critical care medical education blog aka Tropical Travel Trouble 009 The diagnosis of HIV is no longer fatal and the term AIDS is becoming less frequent. In many countries, people with HIV are living longer than those with diabetes. This post will hopefully teach the basics of a complex disease and demystify some of the potential diseases you need to consider in those who are severely immunosuppressed. While trying to be comprehensive this post can not be exhaustive (as you can imagine any patient with ...
Source: Life in the Fast Lane - Category: Emergency Medicine Authors: Tags: Clinical Cases Tropical Medicine AIDS art cryptococcoma cryptococcus HIV HIV1 HIV2 PEP PrEP TB toxoplasma tuberculoma Source Type: blogs
Conclusions. Solid organ and bone marrow transplantations, blood transfusions and immunosuppressive treatment are associated with a small but real risk of parasitic infections in European citizens. In patients with severe parasitic infection, i.e., those with lung or brain involvement or a disseminated disease, the progression is very rapid and the prognosis is bad. Establishing a diagnosis before the patient's death is challenging. PMID: 30344258 [PubMed - in process]
Source: Medicina (Kaunas) - Category: Universities & Medical Training Authors: Tags: Medicina (Kaunas) Source Type: research
AbstractBackgroundMalaria, filariasis, and intestinal parasitic infections (IPIs) are common and frequently overlap in developing countries. The prevalence and predictors of these infections were investigated in three different settlements (rural, semi-urban, and urban) of Gabon.MethodsDuring cross-sectional surveys performed from September 2013 to June 2014, 451 individuals were interviewed. In addition, blood and stool samples were analysed for the presence ofPlasmodium, filarial roundworm, intestinal protozoan, and helminth infections.ResultsIntestinal parasitic infections (61.1%), including intestinal protozoa (56.7%) ...
Source: Infectious Diseases of Poverty - Category: Infectious Diseases Source Type: research
Publication date: January 2018 Source:Biomedicine & Pharmacotherapy, Volume 97 Author(s): Ahmad Daryani, Mahbobeh Montazeri, Abdol Satar Pagheh, Mehdi Sharif, Shahabeddin Sarvi, Azam Hosseinzadeh, Russel J. Reiter, Ramtin Hadighi, Mohammad Taghi Joghataei, Habib Ghaznavi, Saeed Mehrzadi Melatonin (N-acetyl-5-methoxytryptamine) is a circadian hormone produced in vertebrates by the pineal gland and other organs. Melatonin is believed to influence immune cells leading to modulation of the proliferative response of stimulated lymphocytes as well as cytokine production. Due to the antioxidant and immunomodulatory effects o...
Source: Biomedicine and Pharmacotherapy - Category: Drugs & Pharmacology Source Type: research
Abstract Melatonin (N-acetyl-5-methoxytryptamine) is a circadian hormone produced in vertebrates by the pineal gland and other organs. Melatonin is believed to influence immune cells leading to modulation of the proliferative response of stimulated lymphocytes as well as cytokine production. Due to the antioxidant and immunomodulatory effects of melatonin, it is suggested that this molecule could be a therapeutic alternative agent to fight bacterial, viral, and parasitic infections by a variety of mechanisms. Herein, we review the effects of melatonin on the cell biology of protozoan parasites and host's immune re...
Source: Biomedicine and pharmacotherapy = Biomedecine and pharmacotherapie - Category: Drugs & Pharmacology Authors: Tags: Biomed Pharmacother Source Type: research
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