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Journal of Biological Research

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https://www.readbyqxmd.com/read/30003064/the-family-raphitomidae-mollusca-gastropoda-conoidea-in-the-greek-seas-with-the-description-of-two-new-species
#1
Thanasis Manousis, Constantinos Kontadakis, George Mbazios, Georgios Polyzoulis
Background: The Raphitomidae family in the Mediterranean Sea is under revision. Accordingly, new data are of taxonomic and comparative relevance. In this study, new material from the Hellenic Seas is presented. Results: The Raphitomidae fauna of Greece was collected and investigated during the period from October 2008 to February 2018. Thirty-five (35) species were identified and their status was compared with existing checklists and other collections. This effort revealed two new Raphitoma species, and one new record for the Mediterranean Sea...
December 2018: Journal of Biological Research
https://www.readbyqxmd.com/read/29988702/differences-in-trophic-resources-and-niches-of-two-juvenile-predatory-species-in-three-pangani-estuarine-zones-tanzania-stomach-contents-and-stable-isotope-approaches
#2
Alistidia Paul Mwijage, Daniel Abel Shilla, John Ferdinand Machiwa
Background: Estuaries are primary habitats that serve as feeding and nursery grounds for most juvenile marine fish. However, estuaries have been used as fishing grounds by the artisanal fishers in Tanzania. The slow-growing predatory fish at juvenile and sub-adult stages are among the most frequently caught species that functionally enhance multiple linkages of energy pathways within the food web. Stomach contents and stable isotopes (δ13 C and δ15 N) were used to describe the nutritional sources and trophic niches between the co-existing benthic, predatory species, Carangoides chrysophrys and Epinephelus malabaricus in the Pangani estuary, Tanzania...
December 2018: Journal of Biological Research
https://www.readbyqxmd.com/read/29946534/starseeker-an-automated-tool-for-mature-duplex-microrna-sequence-identification-based-on-secondary-structure-modeling-of-precursor-molecule
#3
Paschalis Natsidis, Ilias Kappas, Wojciech M Karlowski
Background: MicroRNAs (miRNAs) are small, non-coding RNA molecules that play a key role in gene regulation in both plants and animals. MicroRNA biogenesis involves the enzymatic processing of a primary RNA transcript. The final step is the production of a duplex molecule, often designated as miRNA:miRNA*, that will yield a functional miRNA by separation of the two strands. This miRNA will be incorporated into the RNA-induced silencing complex, which subsequently will bind to its target mRNA in order to suppress its expression...
December 2018: Journal of Biological Research
https://www.readbyqxmd.com/read/29942798/cortical-microtubule-orientation-in-arabidopsis-thaliana-root-meristematic-zone-depends-on-cell-division-and-requires-severing-by-katanin
#4
Emmanuel Panteris, Barbara-Evelin Diannelidis, Ioannis-Dimosthenis S Adamakis
Background: Transverse cortical microtubule orientation, critical for anisotropic cell expansion, is established in the meristematic root zone. Intending to elucidate the possible prerequisites for this establishment and factors that are involved, microtubule organization was studied in roots of Arabidopsis thaliana , wild-type and the p60-katanin mutants fra2 , ktn1 - 2 and lue1 . Transverse cortical microtubule orientation in the meristematic root zone has proven to persist under several regimes inhibiting root elongation...
December 2018: Journal of Biological Research
https://www.readbyqxmd.com/read/29942797/correction-to-molecular-biochemical-and-kinetic-analysis-of-a-novel-thermostable-lipase-lipsm-from-stenotrophomonas-maltophilia-psi%C3%A2-1-the-first-member-of-a-new-bacterial-lipase-family-xix
#5
Maria Parapouli, Athanasios Foukis, Panagiota-Yiolanda Stergiou, Maria Koukouritaki, Panagiotis Magklaras, Olga A Gkini, Emmanuel M Papamichael, Amalia-Sofia Afendra, Efstathios Hatziloukas
[This corrects the article DOI: 10.1186/s40709-018-0074-6.].
December 2018: Journal of Biological Research
https://www.readbyqxmd.com/read/29881717/spatial-and-temporal-patterns-in-the-diet-of-barn-owl-tyto-alba-in-cyprus
#6
Michaella Moysi, Maria Christou, Vassilis Goutner, Nikos Kassinis, Savvas Iezekiel
Background: The barn owl, a nocturnal raptor with cosmopolitan distribution, shows a great adaptability to different environments. Regarding prey, the barn owl is a rather selective species, but if changes in the abundance of the selected prey occur, it becomes an opportunistic predator and easily incorporates other prey in its diet, using a wide range of prey species and foraging habitats. Small rodents are usually the prey mostly used. Compared to the populations of north and eastern Europe, barn owl populations in the Mediterranean area have been the least studied...
December 2018: Journal of Biological Research
https://www.readbyqxmd.com/read/29876325/changes-in-the-microstructure-of-compact-and-trabecular-bone-tissues-of-mice-subchronically-exposed-to-alcohol
#7
Monika Martiniakova, Anna Sarocka, Ramona Babosova, Birgit Grosskopf, Edyta Kapusta, Zofia Goc, Grzegorz Formicki, Radoslav Omelka
Background: Alcohol is one of the most commonly consumed neurotoxins by humans. Its negative effect on bone health is known for a long time. However, its impact on qualitative and quantitative 2D characteristics of the compact bone is still unclear. Therefore, the aim of this study was to investigate in detail the effects of subchronic alcohol exposure on compact and trabecular bone tissues microstructure of laboratory mice using 2D and 3D imaging methods. Ten clinically healthy 12 weeks-old mice (males) were randomly divided into two groups...
December 2018: Journal of Biological Research
https://www.readbyqxmd.com/read/29796384/the-repeated-emergence-of-asexuality-the-hidden-genomes-and-the-role-of-parthenogenetic-rare-males-in-the-brine-shrimp-artemia
#8
Theodore J Abatzopoulos
The backbone of this endeavour consists of three major components as they appear in the title. My intention is to summarise, as explicitly as possible, both existing and novel data on the occurrence of parthenogenetic rare males assessing their role in conveying sets of genetic information between asexual strains and sexual Artemia species to and fro. Additionally, an assemblage of strong indications and evidence is quoted aiming to unravel possible scenarios of the repeated emergence of asexuality in the brine shrimp and its significance in evolutionary processes involved in speciation...
December 2018: Journal of Biological Research
https://www.readbyqxmd.com/read/29796383/halodom-a-new-database-of-halophiles-across-all-life-domains
#9
Alexios Loukas, Ilias Kappas, Theodore J Abatzopoulos
Background: Halophilic organisms may thrive in or tolerate high salt concentrations. They have been studied for decades and a considerable number of papers reporting new halophilic species are being published every year. However, an extensive collection of these salt-loving organisms does not exist nowadays. Halophilic life forms have representatives from all three life domains, Archaea, Bacteria and Eukarya. The purpose of this study was to search for all documented halophilic species in the scientific literature and accommodate this information in the form of an online database...
December 2018: Journal of Biological Research
https://www.readbyqxmd.com/read/29568733/new-marine-gastropod-records-for-the-hellenic-waters
#10
Thanasis Manousis, Constantinos Kontadakis, Georgios Polyzoulis, George Mbazios, Sofia Galinou-Mitsoudi
Background: The Hellenic Seas are influenced by on-going environmental changes and the introduction of alien species, which are expected to have an impact on their biodiversity. This study contributes to the knowledge of the Hellenic marine gastropod biodiversity, expanding data over the entire Greek territory, during the period from October 2008 to March 2017. Results: This work presents 45 species of gastropods not previously reported from Greece or reported only once, belonging to 19 families...
December 2018: Journal of Biological Research
https://www.readbyqxmd.com/read/29556481/cadmium-uptake-kinetics-in-parts-of-the-seagrass-cymodocea-nodosa-at-high-exposure-concentrations
#11
Paraskevi Malea, Theodoros Kevrekidis, Konstantina-Roxani Chatzipanagiotou, Athanasios Mogias
Background: Seagrass species have been recommended as biomonitors of environmental condition and as tools for phytoremediation, due to their ability to concentrate anthropogenic chemicals. This study aims to provide novel information on metal accumulation in seagrasses under laboratory conditions to support their use as a tool in the evaluation and abatement of contamination in the field. We investigated the kinetics of cadmium uptake into adult leaf blades, leaf sheaths, rhizomes and roots of Cymodocea nodosa in exposure concentrations within the range of cadmium levels in industrial wastewater (0...
December 2018: Journal of Biological Research
https://www.readbyqxmd.com/read/29456971/molecular-biochemical-and-kinetic-analysis-of-a-novel-thermostable-lipase-lipsm-from-stenotrophomonas-maltophilia-psi-1-the-first-member-of-a-new-bacterial-lipase-family-xviii
#12
Maria Parapouli, Athanasios Foukis, Panagiota-Yiolanda Stergiou, Maria Koukouritaki, Panagiotis Magklaras, Olga A Gkini, Emmanuel M Papamichael, Amalia-Sofia Afendra, Efstathios Hatziloukas
Background: Microbial lipases catalyze a broad spectrum of reactions and are enzymes of considerable biotechnological interest. The focus of this study was the isolation of new lipase genes, intending to discover novel lipases whose products bear interesting biochemical and structural features and may have a potential to act as valuable biocatalysts in industrial applications. Results: A novel lipase gene ( lipSm ), from a new environmental Stenotrophomonas maltophilia strain, Psi-1, originating from a sludge sample from Psittaleia (Greece), was cloned and sequenced...
December 2018: Journal of Biological Research
https://www.readbyqxmd.com/read/29445623/bone-marrow-stem-cells-to-destroy-circulating-hiv-a-hypothetical-therapeutic-strategy
#13
Umesh Chandra Halder
Human immunodeficiency virus (HIV) still poses enigmatic threats to human life. This virus has mastered in bypassing anti retroviral therapy leading to patients' death. Circulating viruses are phenomenal for the disease outcome. This hypothesis proposes a therapeutic strategy utilizing receptor-integrated hematopoietic, erythroid and red blood cells. Here, HIV specific receptors trap circulating viruses that enter erythrocyte cytoplasm and form inactive integration complex. This model depicts easy, effective removal of circulating HIV without any adverse effect...
December 2018: Journal of Biological Research
https://www.readbyqxmd.com/read/29404283/genetic-diversity-analysis-of-cultivated-korarima-aframomum-corrorima-braun-p-c-m-jansen-populations-from-southwestern-ethiopia-using-inter-simple-sequence-repeats-issr-marker
#14
Dagmawit Chombe, Endashaw Bekele
Background: Korarima ( Aframomum corrorima ) is a perennial and aromatic herb native and widely distributed in southwestern Ethiopia. It is known for its fine flavor as a spice in various Ethiopian traditional dishes. Few molecular studies have been performed on this species so far. In the present paper, the ISSR technique was employed to study the genetic diversity in populations of cultivated A. corrorima . Results: Seven ISSR primers produced a total of 86 clearly scorable DNA bands...
December 2018: Journal of Biological Research
https://www.readbyqxmd.com/read/29299441/effects-of-partial-dietary-supplementation-of-fish-meal-with-soymeal-on-the-stress-and-apoptosis-response-in-the-digestive-system-of-common-dentex-dentex-dentex
#15
Efthimia Antonopoulou, Eleni Chouri, Konstantinos Feidantsis, Antigone Lazou, Stavros Chatzifotis
Background: Soybean is a common alternative protein source of plant origin in aquafeeds as it has a reasonably balanced amino acid profile and is widely available. This study aimed to investigate the influence of partial substitution of fish meal with soy meal on cytoprotective pathways and apoptosis in the digestive system of common dentex ( Dentex dentex ), using the activation of Hsp70, p38 MAPK, Bcl-2 and caspase-3. The experimental approach involved feeding of common dentex with three isoprotein and isoenergetic diets that contained fish meal as a protein source (FM), partial replacement of fish meal by soy meal 25% (SM25) and 40% (SM40) for 3 months...
December 2017: Journal of Biological Research
https://www.readbyqxmd.com/read/29299440/host-species-and-pathogenicity-effects-in-the-evolution-of-the-mitochondrial-genomes-of-eimeria-species-apicomplexa-coccidia-eimeriidae
#16
Asma Awadi
Background: Mitochondria are fundamental organelles responsible for cellular metabolism and energy production in eukaryotes via the oxidative phosphorylation pathway. Mitochondrial DNA is often used in population and species studies with the assumption of neutral evolution. However, evidence of positive selection in mitochondrial coding genes of various animal species has accumulated suggesting that amino acid changes in mtDNA might be adaptive. The functional and physiological implications of the inferred positively selected sites are usually unknown and are only evaluated based on available structural and functional models...
December 2017: Journal of Biological Research
https://www.readbyqxmd.com/read/29209596/aflp-reveals-low-genetic-diversity-of-the-bryozoan-pectinatella-magnifica-leidy-1851-in-the-czech-republic
#17
Vendula Moravcová, Jana Moravcová, Vladislav Čurn, Zuzana Balounová, Josef Rajchard, Lenka Havlíčková
Background: Non-native species have aroused scientific interest because of their ability to successfully colonise areas to which they have been introduced, despite their sometimes limited genetic variation compared to their native range. These species establish themselves with the aid of some pre-existing features favouring them in the new environment. Pectinatella magnifica (Leidy, 1851), the freshwater magnificent bryozoan, is non-native in Europe and Asia. This study was designed to determine the genetic diversity and population structure of P...
December 2017: Journal of Biological Research
https://www.readbyqxmd.com/read/28975085/evaluation-of-a-simple-method-for-storage-of-blood-samples-that-enables-isolation-of-circulating-tumor-cells-96%C3%A2-h-after-sample-collection
#18
Panagiotis Apostolou, Dimitrios-Athanasios Ntanovasilis, Ioannis Papasotiriou
BACKGROUND: Minimizing the effects of transportation on the properties of biological material is a major challenge for the scientific community. The viability of cells is important in cases where their study is urgent for evaluation of treatment response or for the study of cancer progression. Circulating tumor cells (CTCs) constitute a cell subpopulation with great importance for oncologists, because of their prognostic value. Detection and isolation of CTCs from blood samples is a routine activity in many laboratories, but concerns exist with regard to the maintenance of the cells during transportation...
December 2017: Journal of Biological Research
https://www.readbyqxmd.com/read/28795052/microrna-454-may-function-as-an-oncogene-via-targeting-akt-in-triple-negative-breast-cancer
#19
Qun Li, Jia Liu, Xianying Meng, Renzhu Pang, Jie Li
BACKGROUND: Altered microRNAs expression mediates tumor development and progression in many type cancers including triple negative breast cancer (TNBC). Here we detected the effect of miR-454 on cell proliferation, migration and invasion of triple negative breast cancer cells. RESULTS: miR-454 promoted the proliferation of TNBC, and enhanced migration and invasion in TNBC cells. Meanwhile, miR-454 improved the survival of TNBC cells after ironizing radiation. miR-454 inhibited radiation-induced apoptosis in TNBC cells by regulation of caspase 3/7 and Bcl-2 expression...
December 2017: Journal of Biological Research
https://www.readbyqxmd.com/read/28523251/bone-marker-gene-expression-in-calvarial-bones-different-bone-microenvironments
#20
Osama Al-Amer
BACKGROUND: In calvarial mice, mesenchymal stem cells (MSCs) differentiate into osteoprogenitor cells and then differentiate into osteoblasts that differentiate into osteocytes, which become embedded within the bone matrix. In this case, the cells participating in bone formation include MSCs, osteoprogenitor cells, osteoblasts and osteocytes. The calvariae of C57BL/KaLwRijHsD mice consist of the following five bones: two frontal bones, two parietal bones and one interparietal bone. This study aimed to analyse some bone marker genes and bone related genes to determine whether these calvarial bones have different bone microenvironments...
December 2017: Journal of Biological Research
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