Investigación: Envíos recientes
Mostrando ítems 121-140 de 227
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Genome Sequences of Chikungunya Virus Isolates from Bolivia
(2020-04-16)We generated nine coding-complete chikungunya virus genome sequences from blood samples collected during the early 2015 outbreak in Bolivia. Relative to other publicly available chikungunya sequences, the Bolivian samples ... -
COVID-19 in Latin America: Novel transmission dynamics for a global pandemic?
(2020-05-07)The COVID-19 virus expanded from China into Western Asia, Europe, and North America, impacting many of the world’s wealthiest countries. Brazil reported Latin America’s first case in late February 2020, and in less than a ... -
Factores asociados al no uso de métodos anticonceptivos durante el puerperio, hospital Víctor Ramos Guardia-Huaraz, 2017
(2018-01-01)Se planteó el siguiente problema: Cuáles son los factores asociados al no uso de métodos anticonceptivos durante el puerperio, Hospital Víctor Ramos Guardia - Huaraz, 2017 Con el objetivo general de determinar los factores ... -
Frequency of Toxoplasma gondii and Risk Factors Associated with the Infection in Stray Dogs and Cats of Panama
(2020-06-19)Stray animals such as dogs and cats have an important role in maintaining the transmission cycles and dissemination of Toxoplasma gondii. Therefore, the objective of this study was to evaluate the frequency of T. gondii ... -
Betacoronavirus genomes: How genomic information has been used to deal with past outbreaks and the COVID-19 pandemic
(2020-05-27)In the 21st century, three highly pathogenic betacoronaviruses have emerged, with an alarming rate of human morbidity and case fatality. Genomic information has been widely used to understand the pathogenesis, animal origin ... -
A Pseudopterane Diterpene Isolated From the Octocoral Pseudopterogorgia acerosa Inhibits the Inflammatory Response Mediated by TLR-Ligands and TNF-Alpha in Macrophages
(2013-12-16)Several diterpenoids isolated from terrestrial and marine environments have been identified as important anti-inflammatory agents. Although considerable progress has been made in the area of anti-inflammatory treatment, ... -
AFLP Polymorphisms Allow High Resolution Genetic Analysis of American Tegumentary Leishmaniasis Agents Circulating in Panama and Other Members of the Leishmania Genus
(2013-09-09)American Tegumentary Leishmaniasis is caused by parasites of the genus Leishmania, and causes significant health problems throughout the Americas. In Panama, Leishmania parasites are endemic, causing thousands of new cases ... -
DNA Repair Mechanisms as Drug Targets in Prokaryotes
(2011-07-01)Nowadays, a great amount of pathogenic bacteria has been identified such as Mycobacterium sp. and Helicobacter pylori and have become a serious health problem around the world. These bacteria have developed several DNA ... -
Amplified fragment length polymorphisms reveals high intraspecific variability in field isolates of Leishmania panamensis
(2011-04-01)Leishmania parasites cause leishmaniasis, a potentially deadly re-emergent disease that affects millions throughout the world. In Panama, the disease is showing an increasing trend, with estimates of thousands of new cases ... -
Bastimolide B, an Antimalarial 24-Membered Marine Macrolide Possessing a tert-Butyl Group
(2018-01-12)We reported previously the discovery of the potent antimalarial 40-membered macrolide bastimolide A (1) from the tropical marine cyanobacterium Okeania hirsute. Continued investigation has led to the discovery of a new ... -
Evaluation of antiparasitic, anticancer, antimicrobial and hypoglycemic properties of organic extracts from Panamanian mangrove plants
(2018-01-02)To investigate 33 organic extracts of mangrove plants for: antiparasitic, anticancer, and antibacterial activities, as well as their ability to inhibit the activity of the 毩-glucosidase enzyme. Methods: Leaves from all ... -
Discovery, Semisynthesis, Antiparasitic and Cytotoxic Evaluation of 14-Membered Resorcylic Acid Lactones and Their Derivatives
(2017-09-18)Ten antifouling 14-membered resorcylic acid lactones 1–10 were isolated previously with low or trace natural abundance from the zoanthid-derived Cochliobolus lunatus fungus. Further optimization of fermentation conditions ... -
Discovery and Synthesis of Caracolamide A, an Ion Channel Modulating Dichlorovinylidene Containing Phenethylamide from a Panamanian Marine Cyanobacterium cf. Symploca Species
(2017-08-07)A recent untargeted metabolomics investigation into the chemical profile of 10 organic extracts from cf. Symploca spp. revealed several interesting chemical leads for further natural product drug discovery. Subsequent ... -
Imaging mass spectrometry and MS/MS molecular networking reveals chemical interactions among cuticular bacteria and pathogenic fungi associated with fungus-growing ants
(2017-07-17)The fungus-growing ant-microbe symbiosis is an ideal system to study chemistry-based microbial interactions due to the wealth of microbial interactions described, and the lack of information on the molecules involved ... -
Chromatin-bound oxidized α-synuclein causes strand breaks in neuronal genomes in in vitro models of Parkinson’s disease
(2017-01-01)Alpha-synuclein (α-Syn) overexpression and misfolding/aggregation in degenerating dopaminergic neurons have long been implicated in Parkinson’s disease (PD). The neurotoxicity of α-Syn is enhanced by iron (Fe) and other ... -
Dudawalamides A−D, Antiparasitic Cyclic Depsipeptides from the Marine Cyanobacterium Moorea producens
(2017-05-23)HPLC. DudA family of 2,2-dimethyl-3-hydroxy-7-octynoic acid (Dhoya)-containing cyclic depsipeptides, named dudawalamides A−D (1−4), was isolated from a Papua New Guinean field collection of the cyanobacterium Moorea producens ... -
Anti-amyloid aggregation activity of novel carotenoids: implications for Alzheimer’s drug discovery
(2017-05-15)Alzheimer’s disease (AD) is the leading cause of dementia, affecting approximately 33.5 million people worldwide. Aging is the main risk factor associated with AD. Drug discovery based on nutraceutical molecules for ... -
Assessment of Novel Curcumin Derivatives as Potent Inhibitors of Inflammation and Amyloid-β Aggregation in Alzheimer's Disease
(2017-01-01)Alzheimer's disease (AD) is the most common neurodegenerative disorder affecting the elderly population worldwide. Brain inflammation plays a key role in the progression of AD. Deposition of senile plaques in the brain ... -
Studies on Copper and Aβ1-16-Induced Conformational Changes in CAG/CTG Trinucleotide Repeats Sequence
(2017-01-01)DNA conformation and stability are critical for the normal cell functions, which control many cellular processes in life, such as replication, transcription, DNA repair, etc. The accumulation of amyloid-β peptide (Aβ) and ... -
Marine cyanobacteria-derived serotonin receptor 2C active fraction induces psychoactive behavioral effects in mice
(2016-11-01)Marine cyanobacteria offer a robust resource for natural products drug discovery due to the secondary metabolites they produce. Objective—To identify novel cyanobacterial compounds that exhibit CNS psychoactive effects. ...