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Effect of Cestodes Parasitizing the Small Intestine on Host Protease Activities in Herring Gull Chicks. 寄生小蝇对银鸥幼雏宿主蛋白酶活性的影响。
Doklady Biological Sciences Pub Date : 2025-12-01 Epub Date: 2026-01-12 DOI: 10.1134/S0012496625700085
M M Kuklina, V V Kuklin
{"title":"Effect of Cestodes Parasitizing the Small Intestine on Host Protease Activities in Herring Gull Chicks.","authors":"M M Kuklina, V V Kuklin","doi":"10.1134/S0012496625700085","DOIUrl":"10.1134/S0012496625700085","url":null,"abstract":"<p><p>Total protease activity and activities of protease subclasses in the small intestine were assayed in herring gull (Larus argentatus (Pontoppidan, 1763)) chicks infested by the cestodes Tetrabothrius erostris (Loennberg, 1889) (Cestoda: Tetrabothriidae), Microsomacanthus ductilus (Linton, 1927) (Cestoda: Hymenolepididae), Wardium cirrosa (Krabbe, 1869) (Cestoda: Aploparaksidae), Arctotaenia tetrabothrioides (Loennberg, 1890), and Alcataenia larina (Krabbe, 1869) (Cestoda: Dilepididae). Serine protease activity was found to decrease in small intestine sites with the highest cestode abundance (M. ductilus in the proximal segment; W. cirrosa in the distal segment; and Ar. tetrabothrioides, T. erostris, and Al. larina in the medial segment). Cysteine protease activity increased in sites of M. ductilus, W. cirrosa, and Al. larina location. Protease absorption on the tegument surface was observed in all of the cestodes under study, and serine proteases accounted for a major part of the absorbed enzymes. Homogenates of W. cirrosa, M. ductilus, Ar. tetrabothrioides, T. erostris, and Al. larina were shown to inhibit activities of host proteases and commercial trypsin.</p>","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":"525 1","pages":"397-404"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145959166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Features of the Relationship between Myxobolus pronini Liu et al., 2016 (Cnidaria: Myxozoa) and the Prussian Carp Carassius auratus gibelio. 前粘虫（Myxobolus pronini Liu et al., 2016）与异育银鲫（Carassius auratus gibelio）的关系特征。
Doklady Biological Sciences Pub Date : 2025-12-01 Epub Date: 2026-01-12 DOI: 10.1134/S0012496625700103
M D-D Batueva, R Yu Abasheev
{"title":"Features of the Relationship between Myxobolus pronini Liu et al., 2016 (Cnidaria: Myxozoa) and the Prussian Carp Carassius auratus gibelio.","authors":"M D-D Batueva, R Yu Abasheev","doi":"10.1134/S0012496625700103","DOIUrl":"10.1134/S0012496625700103","url":null,"abstract":"<p><p>The features of Myxobolus pronini location in Prussian carps (Carassius auratus gibelio) were described and the relationships in the parasite-host system analyzed. Large spore masses surrounded by a connective tissue capsule were found in the body cavity. The development of vegetative M. pronini forms was observed to start in exocrine tissue of the carp pancreas.</p>","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":"525 1","pages":"387-389"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145959106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synaptic Vesicle Exocytosis and Endocytosis in Motor Nerve Endings of Transgenic Mice Modeling Amyotrophic Lateral Sclerosis upon Antioxidant Treatment and Gene-Cell Therapy. 抗氧化和基因细胞治疗对肌萎缩性侧索硬化症转基因小鼠运动神经末梢突触小泡胞外和胞吞作用的影响。
Doklady Biological Sciences Pub Date : 2025-12-01 Epub Date: 2025-12-02 DOI: 10.1134/S0012496625600356
P N Grigoryev, A L Zefirov, R D Mukhamedzyanov, I I Salafutdinov, R R Islamov, M A Mukhamedyarov
{"title":"Synaptic Vesicle Exocytosis and Endocytosis in Motor Nerve Endings of Transgenic Mice Modeling Amyotrophic Lateral Sclerosis upon Antioxidant Treatment and Gene-Cell Therapy.","authors":"P N Grigoryev, A L Zefirov, R D Mukhamedzyanov, I I Salafutdinov, R R Islamov, M A Mukhamedyarov","doi":"10.1134/S0012496625600356","DOIUrl":"10.1134/S0012496625600356","url":null,"abstract":"<p><p>Exocytosis and endocytosis of synaptic vesicles were studied in experiments with motor nerve endings of diaphragm neuromuscular preparations isolated from transgenic mice with a model of amyotrophic lateral sclerosis (ALS); treatment simulated antioxidant (edaravone) and gene-cell (umbilical cord blood mononuclear cells (UCB-MNCs) producing VEGF, GDNF, and NCAM) therapies. None of the treatments was found to significantly change the FM 1-43 fluorescent dye loading due to synaptic vesicle endocytosis. Gene-cell therapy increased the rate of dye unloading due to synaptic vesicle exocytosis, while antioxidant therapy did not change the FM 1-43 unloading rate. Based on the findings, gene-cell therapy was assumed to facilitate synaptic vesicle transport to release sites upon high-frequency stimulation in motor nerve endings of transgenic mice.</p>","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":" ","pages":"354-358"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145654046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Effect of Early Stress on Drosophila melanogaster Development and Fertility. 早期应激对黑腹果蝇发育和生育力的影响。
Doklady Biological Sciences Pub Date : 2025-12-01 Epub Date: 2025-12-02 DOI: 10.1134/S0012496625600423
N V Adonyeva, V M Efimov, N E Gruntenko
{"title":"The Effect of Early Stress on Drosophila melanogaster Development and Fertility.","authors":"N V Adonyeva, V M Efimov, N E Gruntenko","doi":"10.1134/S0012496625600423","DOIUrl":"10.1134/S0012496625600423","url":null,"abstract":"<p><p>Stress at early stages of development is known to affect a lot of physiological traits in mammals, but much less is known concerning its effect on physiology of Holometabola insects. In this study, we report for the first time that heat stress experienced by 3rd instar larvae of Drosophila melanogaster (32°C, 48 h) results in a decrease in egg-to-imago development rate. Such stress also results in a drop in fertility at the beginning of the reproduction period (the first 48 h after the oviposition onset). The data obtained are indicative of the transition of physiological changes caused by early stress through metamorphosis. Thus, the results of our study support the idea of metamorphosis not erasing the influence of factors that affected the insect before its start universally among Holometabola.</p>","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":" ","pages":"346-349"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145653980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dual Effects of Acetylcholine on Mast Cell-Nerve Interactions. 乙酰胆碱对肥大细胞-神经相互作用的双重作用。
Doklady Biological Sciences Pub Date : 2025-12-01 Epub Date: 2025-12-02 DOI: 10.1134/S001249662560054X
N A Kutukova, A S Trulioff, A V Polevshchikov, O V Shamova
{"title":"Dual Effects of Acetylcholine on Mast Cell-Nerve Interactions.","authors":"N A Kutukova, A S Trulioff, A V Polevshchikov, O V Shamova","doi":"10.1134/S001249662560054X","DOIUrl":"10.1134/S001249662560054X","url":null,"abstract":"<p><p>Mast cell (MC)-nerve units are one of the main elements of cooperation between the nervous and immune systems, providing a structural and functional connection between MCs and autonomic nerve fibers. Although immunoregulatory activity of acetylcholine (ACh) is well established, the exact point of its influence on MCs remains unclear. This study compared the effects of muscarinic (mAChR) versus nicotinic (nAChR) ACh receptor binding on secretory activity of HMC-1 cells. It was found that ACh activates intact MCs mainly through the M3 mAChR, but suppresses degranulation in stimulated MCs via the α7 nAChR. The findings indicate that changes in the receptor pattern within MC-nerve units underlie the dual effects of ACh and enable MCs to switch functions in inflammation from proinflammatory activity in the acute phase to anti-inflammatory activity during reparation.</p>","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":" ","pages":"350-353"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145653972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A New Late Pleistocene Avifauna from Yakutia (Eastern Siberia). 雅库特（东西伯利亚）一种新的晚更新世鸟类。
Doklady Biological Sciences Pub Date : 2025-12-01 Epub Date: 2026-01-12 DOI: 10.1134/S0012496625600642
N V Zelenkov, M P Maslintsyna, A V Lavrov, D O Gimranov, I S Pavlov, A V Kandyba, A V Protopopov
{"title":"A New Late Pleistocene Avifauna from Yakutia (Eastern Siberia).","authors":"N V Zelenkov, M P Maslintsyna, A V Lavrov, D O Gimranov, I S Pavlov, A V Kandyba, A V Protopopov","doi":"10.1134/S0012496625600642","DOIUrl":"10.1134/S0012496625600642","url":null,"abstract":"<p><p>A new fossil avifauna, dated to an unspecified Upper Pleistocene, is reported from the Khondu locality discovered recently in central Yakutia. Based on materials collected in 2023 and 2024, at least 25 bird taxa from the families Phasianidae (Lagopus lagopus), Anatidae (ten species), Podicipedidae (two species), Scolopacidae (five species), Accipitridae (Buteo sp. and Circus sp.), Alaudidae (Eremophila alpestris), and Turdidae (one species) were identified. The fauna is the northernmost representative Pleistocene fossil bird fauna in Eastern Siberia and the second one from Yakutia. The avifauna of Khondu is generally similar to that from Upper Pleistocene layers of the Dyuktai Cave (southeastern Yakutia), but differs in the presence of several species. In particular, the common pochard Aythya ferina was found, indicating more favorable environmental conditions during the formation of the taphocenosis. The presence of arboreal vegetation is inferred from the finds of goldeneye Bucephala clangula remains, including those of subadult individuals. Of particular interest are the finds of two wader species, the ringed plover Charadrius hiaticula and the Far Eastern curlew Numenius madagascariensis. This is the first find of the ringed plover in the Pleistocene of Asia, and the first find of the Far Eastern curlew in the fossil record.</p>","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":"525 1","pages":"372-378"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145959195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Diversity of Toll-like Receptor Gene Transcripts in Hemocytes of Planorbarius corneus Mollusks (Gastropoda, Pulmonata) Uninfected and Infected with Bilharziella polonica. 未感染和感染波罗氏Bilharziella polonica的角扁豆软体动物血细胞中toll样受体基因转录本的多样性
Doklady Biological Sciences Pub Date : 2025-12-01 Epub Date: 2026-01-12 DOI: 10.1134/S0012496625700097
A V Bobrovskaya, Yu A Orlov, E E Prokhorova
{"title":"Diversity of Toll-like Receptor Gene Transcripts in Hemocytes of Planorbarius corneus Mollusks (Gastropoda, Pulmonata) Uninfected and Infected with Bilharziella polonica.","authors":"A V Bobrovskaya, Yu A Orlov, E E Prokhorova","doi":"10.1134/S0012496625700097","DOIUrl":"10.1134/S0012496625700097","url":null,"abstract":"<p><p>The hemocyte transcriptome was for the first time obtained and analyzed in uninfected Planorbarius corneus snails and snails naturally infected with Bilharziella polonica parthenites (Schistosomatidae). Transcripts encoding all groups of immune factors previously described in other gastropods were found in assemblies. Pathogen recognition molecules were the most diverse group of transcripts encoding immunity factors. Toll-like receptors (TLRs) of 11 types were identified. The TLR set did not differ between infected and uninfected snails. The data expand the knowledge of snail immune responses to trematode invasion and make it possible to consider P. corneus as a new model for studying mollusk immune reactions.</p>","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":"525 1","pages":"390-396"},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145959182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Calcipostia guttulata (Basidiomycota, Polyporales) in Russia. 俄罗斯的钙化古图拉塔(Basidiomycota, Polyporales)。
Doklady Biological Sciences Pub Date : 2025-10-01 Epub Date: 2025-10-13 DOI: 10.1134/S0012496625700036
I V Zmitrovich, D A Shabunin, N V Bukharova, V V Perelygin
{"title":"Calcipostia guttulata (Basidiomycota, Polyporales) in Russia.","authors":"I V Zmitrovich, D A Shabunin, N V Bukharova, V V Perelygin","doi":"10.1134/S0012496625700036","DOIUrl":"10.1134/S0012496625700036","url":null,"abstract":"<p><p>The aim of this work was to summarize the data on the ecological, biological, and morphological features of Calcipostia guttulata (Polyporales, Basidiomycota) by using the original materials, revised herba-rium specimens, data on molecular barcoding of original collections, the available literature, and iconography and information stored on the GBIF portal. It was shown that C. guttulata is a widespread, but rare polypore in the Holarctic; is confined to the early stages of drying of coniferous stands, primarily spruce forests; and is a poorly studied headwood pathogen and a saprotroph that colonizes coniferous deadwood and, less often, fallen trees. The morphological diagnosis of C. guttulata was clarified. Its substrate spectrum, distribution, and relationships with insects, which are important for forest pathology, have been identified most fully to date. The conservation status of the species and the prospects for its use in biotechnology are discussed.</p>","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":" ","pages":"301-312"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145285816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A One-Trial Mouse Model of Highly Stable Trauma-Induced Long-Term Memory. 高稳定性创伤性长期记忆小鼠模型的建立。
Doklady Biological Sciences Pub Date : 2025-10-01 Epub Date: 2025-12-02 DOI: 10.1134/S0012496625600435
T A Zamorina, K A Toropova, O I Ivashkina, K V Anokhin
{"title":"A One-Trial Mouse Model of Highly Stable Trauma-Induced Long-Term Memory.","authors":"T A Zamorina, K A Toropova, O I Ivashkina, K V Anokhin","doi":"10.1134/S0012496625600435","DOIUrl":"10.1134/S0012496625600435","url":null,"abstract":"<p><p>The formation and lifelong maintenance of memory remain one of the central unsolved problems of neuroscience. Although many experimental models have been developed to study memory, there is currently no paradigm that would enable to reliably investigate the memory mechanisms over timescales comparable to the lifespan. In this study, mice were tested for the ability to form highly stable long-term memory in a contextual fear conditioning paradigm, an adapted model of posttraumatic stress disorder (PTSD) with varying intensities of aversive stimulation. A one-trial learning model was developed by varying the intensity of aversive stimulation. The mice reliably formed long-term associative memories that persisted for at least six months. The model thus provides a promising tool for investigating the molecular and neuronal network mechanisms of lifelong memory retention.</p>","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":" ","pages":"223-226"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145654036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Morphophysiological and Biochemical Characteristics of the Gonads in the Kalkan Scophthalmus maeoticus torosus (Scophthalmidae) during Maturation and Spawning in the Sea of Azov. 亚速海梭鲈（梭鲈科）成熟和产卵期间性腺形态生理生化特征。
Doklady Biological Sciences Pub Date : 2025-10-01 Epub Date: 2025-10-13 DOI: 10.1134/S0012496625600344
S A Murzina, V P Voronin, L I Bulli, O E Bitiytskaya, N N Nemova
{"title":"Morphophysiological and Biochemical Characteristics of the Gonads in the Kalkan Scophthalmus maeoticus torosus (Scophthalmidae) during Maturation and Spawning in the Sea of Azov.","authors":"S A Murzina, V P Voronin, L I Bulli, O E Bitiytskaya, N N Nemova","doi":"10.1134/S0012496625600344","DOIUrl":"10.1134/S0012496625600344","url":null,"abstract":"<p><p>Morphophysiological parameters of oocytes were studied in the Azov turbot (kalkan) Scophthalmus maeoticus torosus during maturation and spawning in the Sea of Azov. The fatty acid composition was additionally determined in three (cranial, middle, and caudal) regions of the gonad in each individual fish. The dynamics of the morphophysiological characteristics and the fatty acid composition of eggs was observed over the spawning period. Two physiologically significant fatty acids, oleic and docosahexaenoic, were found to dominate in eggs. Opposite trends were detected in their contents, i.e., the docosahexaenoic acid content at the beginning of spawning was higher than in the peak spawning period, when oleic acid prevailed.</p>","PeriodicalId":11351,"journal":{"name":"Doklady Biological Sciences","volume":" ","pages":"334-340"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145285888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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