30 results match your criteria: "Federal Scientific Center of East-Asia Terrestrial Biodiversity[Affiliation]"

New morphological and molecular data were generated for trematodes recovered from the intestines of the fish from two locations in the south of the Russian Far East. Morphologically, these trematodes are identical to (Microphalloidea: Zoogonidae) from Japan. According to results of phylogenetic analysis based on 28S rDNA sequence data, was closely related to , and appears as a sister taxon to these two species.

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The Different Composition of Coumarins and Antibacterial Activity of and Root Extracts.

Plants (Basel)

February 2024

Laboratory of Cell and Developmental Biology, Federal Scientific Center of East-Asia Terrestrial Biodiversity, Far Eastern Branch of the Russian Academy of Sciences, 159 Stoletiya Street, Vladivostok 690022, Russia.

, a valuable endangered medicinal plant, is a source of angular pyranocoumarins used in pharmacology. Due to limited resource availability, other pyranocoumarin sources are needed. In the present research, the chemical composition of a closely related species, , was studied, along with .

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Objectives: Leptospira, the spirochaete causing leptospirosis, can be classified into >250 antigenically distinct serovars. Although knowledge of the animal host species and geographic distribution of Leptospira serovars is critical to understand the human and animal epidemiology of leptospirosis, current data are fragmented. We aimed to systematically review, the literature on animal host species and geographic distribution of Leptospira serovars to examine associations between serovars with animal host species and regions and to identify geographic regions in need of study.

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This study examines nineteen phreatobiological hand pump samples collected in 20092010 in three separate areas of salmon river basins in the southern part of Primorye, in the Far East of Russia. For the first time, faunal groundwater patterns were assessed for the rivers of Eastern Manchuria, the Ussury River Basin and the rivers of the south-western slope of Sikhote Alin. A total of 164 species (including 32 stygobionts) belonging to the phyla Annelida, Mollusca and Arthropoda are first records of groundwater animals, and two of the stygobionts are described below as new species for Science.

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Holothurian triterpene glycoside cucumarioside A-2 induces macrophages activation and polarization in cancer immunotherapy.

Cancer Cell Int

November 2023

Department of Biological Science and Technology, Institute of Molecular Medicine and Bioengineering, College of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu, 300, Taiwan.

Background: Despite intensive developments of adoptive T cell and NK cell therapies, the efficacy against solid tumors remains elusive. Our study demonstrates that macrophage-based cell therapy could be a potent therapeutic option against solid tumors.

Methods: To this end, we determine the effect of a natural triterpene glycoside, cucumarioside A-2 (CA-2), on the polarization of mouse macrophages into the M1 phenotype, and explore the antitumor activity of the polarized macrophage.

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Objectives: , the spirochaete causing leptospirosis, can be classified into >250 antigenically distinct serovars. Although knowledge of the animal host species and geographic distribution of serovars is critical to understand the human and animal epidemiology of leptospirosis, currently data are fragmented. We aimed to systematically review the literature on animal host species and geographic distribution of serovars to examine associations between serovars with animal host species and regions, and to identify geographic regions in need of study.

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A unique type of mate guarding behavior is discovered in the araneid spider Caerostris sumatrana Strand, 1915: the male waits for the female's maturity while staying tied to the dorsal surface of her abdomen. The species is redescribed in detail. General appearance of the male and its fine structures are illustrated by scanning electron microscopy for the first time.

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Plant Pyranocoumarins: Description, Biosynthesis, Application.

Plants (Basel)

November 2022

Department of Biology, Institute of Natural Sciences, M.K. Ammosov North-Eastern Federal University, 58 Belinsky Str., Yakutsk 677000, Russia.

This overview article contains information about pyranocoumarins over the last 55 years. The article is based on the authors' phytochemical and physiological studies in vivo and in vitro as well as search and analysis of data in literature available on Google Scholar, Web of Science, PubMed, and ScienceDirect before January 2022. Pyranocoumarins are synthesized in plants of the , families, and one species in each of the , , and families can synthesize this class of compounds.

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In this study we described two new trematode species, Lecithostaphylus halongi n. sp. (Zoogonidae, Lecithostaphylinae) and Gymnotergestia strongyluri n.

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The coexistence of various pathogens inside the patient's body is one of the poorly studied and current issues. The aim of the study is to identify the relationship between the indicators of complex laboratory diagnostics and the clinical manifestations of a mixed disease during subsequent infection with the SARS-CoV-2 virus using the example of a case of chronic encephalitis-borreliosis infection. Seven blood serum samples were collected from the patient over the course of a year.

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A new subgenus of the genus Amara Bonelli, 1810 (Coleoptera: Carabidae) from northeastern Tibet, China.

Zootaxa

October 2021

Federal Scientific Center of East Asia Terrestrial Biodiversity, Zoology Department Laboratory of Entomology, Pr. 100-letiya Vladivostoka 159, 690022 Vladivostok, Russia. .

A new monotypic subgenus, Tibetamara subgen. n., is established for Amara validula Tschitschrine, 1898, from Tibet.

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A survey of Diphya Nicolet, 1849 (Araneae: Tetragnathidae) from South Africa.

Zootaxa

December 2020

Federal Scientific Center of East Asia Terrestrial Biodiversity, Far Eastern Branch, Russian Academy of Sciences, Vladivostok 690022, Russia Far Eastern Federal University, Laboratory of Ecology and Evolutionary Biology of Aquatic Organisms (LEEBAO), School of Natural Sciences, Vladivostok 690091, Russia.

In this paper, five species of Diphya Nicolet, 1849 are recognized in the fauna of South Africa. Four of these species are new: D. foordi sp.

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Synthetic 1,4-Naphthoquinones inhibit P2X7 receptors in murine neuroblastoma cells.

Bioorg Med Chem

February 2021

G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia; Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Taiwan. Electronic address:

The P2X7 receptor (P2X7R) is an ATP-gated ion channel and potential therapeutic target for new drug development. In this study, we synthesized a series of new 1,4-naphthoquinone (1,4-NQ) derivatives and investigated their antagonistic effects against mouse P2X7R. We explored the ability of the tested substances to block ATP-induced Ca influx into mouse Neuro-2a cells and selected the four most effective substances: the 1,4-naphthoquinone thioglucosides U-548 and U-557 and their tetracyclic conjugates U-286 and U-556.

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A description and the molecular characterization of two new species in the Haploporidae and Haplosplanchnidae families are provided herein. Parasaccocoelium armatum n. sp.

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Wild waterfowl birds are known to be the main reservoir for a variety of avian influenza viruses of different subtypes. Some subtypes, such as H2Nx, H8Nx, H12Nx, and H14Nx, occur relatively rarely in nature. During 10-year long-term surveillance, we isolated five rare H12N5 and one H12N2 viruses in three different distinct geographic regions of Northern Eurasia and studied their characteristics.

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