Results 71 to 80 of about 4,196,713 (277)

Antioxidant and Cytotoxic Properties of Piper spp. Volatile Oils That Inhibit Pathogenic Microorganisms

Flavour and Fragrance Journal, EarlyView.
The samples were fungicidal against Candida, with MICs ranging from 62.5 to 250 μg/mL, and fungistatic against Penicillium adametzii, Aspergillus flavus and A. niger, with MICs of 1000 μg/mL. The volatile oils of Piper aduncum and Piper marginatum reduced the viability of MDA‐MB231 cells.
Midiã R. Oliveira, Ely D. Alfaia Neto, Carlos Eduardo C. Alves, Renata Galvão de Azevedo, Alice F. Gomes, Flávia Juliana Reis de Sousa, Juan Campos de Oliveira, Larissa Raquel S. Maciel, Gemilson S. Pontes, Ari F. Hidalgo, Antonia Q. L. Souza, Rita C. Saraiva Nunomura   +11 more
wiley   +1 more source

Amazonian Plant Natural Products: Perspectives for Discovery of New Antimalarial Drug Leads

Molecules, 2013
Plasmodium falciparum and P. vivax malaria parasites are now resistant, or showing signs of resistance, to most drugs used in therapy. Novel chemical entities that exhibit new mechanisms of antiplasmodial action are needed.
Lucio H. Freitas-Junior, Pedro Cravo, Marcus Vinícius Guimarães Lacerda, André Machado Siqueira, Carolina Borsoi Moraes, Gina Frausin, Luiz Francisco Rocha e Silva, Stefanie Costa Pinto Lopes, Renata Braga Souza Lima, Fabio Trindade Maranhão Costa, Adrian Martin Pohlit   +10 more
doaj   +1 more source

Social organization influences the exchange and species richness of medicinal plants in Amazonian homegardens.

Ecology and Society, 2016
Medicinal plants provide indigenous and peasant communities worldwide with means to meet their healthcare needs. Homegardens often act as medicine cabinets, providing easily accessible medicinal plants for household needs.
I. Díaz-Reviriego, Lara González-Segura, Á. Fernández‐Llamazares, P. Howard, J. Molina, V. Reyes‐García   +5 more
semanticscholar   +1 more source

Seasonal drivers of plant–soil–microbial community structure and functions in Western Himalayan grasslands, Pakistan

Grassland Research, EarlyView.
Plant species richness was greater in summer in both alpine and subalpine grassland ecosystems. Soil moisture demonstrates significant positive correlations with soil organic carbon and total nitrogen across seasonal periods. Microbial α‐diversity peaks during summer but maintains functional stability across seasons.
Huma Ali, Muhammad Rafiq, Allan Degen, Ben Sparrow, Zhanhuan Shang   +4 more
wiley   +1 more source

Heat and Cold Waves in Brazil: An ERA5‐Based Analysis of Trends and Seasonality (1980–2024)

International Journal of Climatology, EarlyView.
This study uses ERA5 reanalysis data to assess changes in extreme heat and cold events across Brazil from 1980 to 2024. Results reveal a sharp increase in heatwave frequency and a general decline in coldwave occurrences, though regional variations are substantial.
Alindomar Lacerda Silva, Scott Sheridan
wiley   +1 more source

Sunshine Duration in Brazil From Meteosat (1983–2020): Climatology, Variability and Long‐Term Trends

International Journal of Climatology, EarlyView.
Using nearly four decades of Meteosat satellite data (1983–2020), this study presents a country‐wide climatology of sunshine duration (SDU) in Brazil. The results reveal marked regional contrasts, dominant modes of variability, and significant long‐term trends, providing new information on the most relevant meteorological systems that influence SDU and
Maria Lívia Lins Mattos Gava, Simone Marilene Sievert da Costa, Íris Paraguay Silva   +2 more
wiley   +1 more source

Dietary restrictions in healing among speakers of Iquito, an endangered language of the Peruvian Amazon

Journal of Ethnobiology and Ethnomedicine, 2011
Background Ethnobotanical research was carried out with speakers of Iquito, a critically endangered Amazonian language of the Zaparoan family. The study focused on the concept of "dieting" (siyan++ni in Iquito), a practice involving prohibitions ...
Jernigan Kevin A
doaj   +1 more source

Spatiotemporal Fire Patterns and Post‐fire Forest Change in Peru (2000–2021)

Land Degradation &Development, EarlyView.
ABSTRACT Fire is increasingly more frequent and severe in many tropical regions, leading to significant forest loss, diminished biodiversity, and reduced Nature's contributions to people (NCPs). In this study, we analyzed the spatiotemporal patterns of fire in Peru and its regions, focusing on: (1) burned area, (2) size, and (3) number of fires, using ...
Maricel Móstiga, Dolors Armenteras, Jordi Vayreda, Javier Retana   +3 more
wiley   +1 more source

Guayusa (Ilex guayusa Loes.) Ancestral Plant of Ecuador: History, Traditional Uses, Chemistry, Biological Activity, and Potential Industrial Uses

Molecules
One of the medicinal plants used in Ecuador that has the best prospects for industrialization is guayusa (Ilex guayusa Loes.). This review shows the potential of the species, analyzing the ethnobotanical aspects, ancestral uses, secondary metabolites ...
Paco Noriega, Erick Moreno, Ana Falcón, Vanessa Quishpe, Patricia del Carmen Noriega   +4 more
doaj   +1 more source

Dynamic Profiling of Circulating Tumor Cells and MYC/PTEN Alterations in Prostate Cancer Patients Undergoing Radical Prostatectomy in Amazon Population

Molecular Carcinogenesis, EarlyView.
ABSTRACT Prostate cancer (PCa) is the second most frequently diagnosed malignancy among men and the sixth leading cause of cancer‐related mortality worldwide. Radical prostatectomy remains the standard treatment for localized disease; however, approximately one‐third of patients develop biochemical recurrence within 10 years. Although prostate‐specific
Juliana Ramos Chaves, Rommel Mario Rodriguez Burbano, Amanda de Nazaré Cohen‐Paes, Diego Di Felipe Ávila Alcântara, Ana Paula Borges de Souza, Maria Janete Nahum Gomes, Sérgio Augusto Antunes Ramos, André Salim Khayat   +7 more
wiley   +1 more source