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Total 478012 results found since Jan 2013.
Impact of tidal volume strategy at birth on initiating lung injury in preterm lambs
Am J Physiol Lung Cell Mol Physiol. 2023 Sep 20. doi: 10.1152/ajplung.00159.2023. Online ahead of print.ABSTRACTTidal ventilation is essential in supporting the transition to air-breathing at birth, but excessive tidal volume (VT) is an important factor in preterm lung injury. Few studies have assessed the impact of specific VT levels on injury development. Here we used a lamb model of preterm birth to investigate the role of different levels of VT during positive pressure ventilation (PPV) in promoting aeration and initiating early lung injury pathways. VT was delivered as; (i) 7ml/kg throughout (VTstatic), (ii) begun at ...
Source: American Journal of Physiology. Lung Cellular and Molecular Physiology - September 20, 2023 Category: Cytology Authors: Prue M Pereira-Fantini Kelly R Kenna Monique Fatmous Arun Sett Ellen Douglas Sophia Dahm Magdy Sourial Haoyun Fang David W Greening David G Tingay Source Type: research
Unique Presentations of Burkholderia gladioli Infections in Several Strains of Immunocompromised Mice
Comp Med. 2023 Sep 20. doi: 10.30802/AALAS-CM-23-000016. Online ahead of print.ABSTRACTFour strains of experimentally naïve mice (NOD.Cg-Prkdcscid Il2rgtm1Wjl/SzJ [NSG], NOD.Cg-Rag1tm1Mom Il2rgtm1Wjl/SzJ[NRG], B6.129S(Cg)-Stat1tm1Dlv/J [STAT1-/-], and B6.129S7-Ifngr1tm1Agt/J [IFNγR-/-] housed in a barrier facility developedunusual and seemingly unrelated clinical signs. Young NSG/NRG mice (n = 49, mean age = 4 ± 0.4 mo) exhibited nonspecificclinical signs of moderate-to-severe lethargy, hunched posture, decreased body condition, and pallor. In contrast to the NSG/NRGmice, the STAT1-/- and IFNγR-/-mice (n = 5) developed...
Source: Comparative Medicine - September 20, 2023 Category: Zoology Authors: Andrea J Osborne Sarah E Clark Tiffany L Whitcomb Penny L Devlin Matthew R Lanza Hannah M Atkins Source Type: research
Essential Competencies in Entry-Level Neurologic Physical Therapist Education: Erratum
J Neurol Phys Ther. 2023 Oct 1;47(4):216. doi: 10.1097/NPT.0000000000000460. Epub 2023 Aug 7.NO ABSTRACTPMID:37728440 | DOI:10.1097/NPT.0000000000000460
Source: Physical Therapy - September 20, 2023 Category: Physiotherapy Source Type: research
Optimizing Mental Health for Women: Recognizing and Treating Mood Disorders Throughout the Lifespan
J Clin Psychiatry. 2023 Sep 18;84(5):vtsmdd2136ahc. doi: 10.4088/JCP.vtsmdd2136ahc.ABSTRACTMood disorders can come and go during the reproductive stages of a woman's life and beyond and can include premenstrual-related mood disorders, depression and other psychiatric disorders during pregnancy, postpartum mood disorders, and depression during menopause, as well as comorbid psychiatric conditions. Women may have regular contact with health care providers at these various stages in their lives, providing an opportunity for treatment intervention. However, clinicians struggle to effectively identify and manage these disorders...
Source: Journal of Clinical Psychiatry - September 20, 2023 Category: Psychiatry Authors: Kathryn M Abel Marlene P Freeman Source Type: research
ZNF746 promotes M2 macrophage polarisation and favours tumour progression in breast cancer via the Jagged1/Notch pathway
In conclusion, this study uncovers the role of ZNF746 in promoting M2 macrophage polarisation and suggests that ZNF746 may be a promising therapeutic target for limiting BC progression.PMID:37730102 | DOI:10.1016/j.cellsig.2023.110892
Source: Cellular Signalling - September 20, 2023 Category: Cytology Authors: Lu Liu Wen-Yue Zhao Xin-Yu Zheng Source Type: research
Peroxiredoxins in erythrocytes: far beyond the antioxidant role
J Mol Med (Berl). 2023 Sep 20. doi: 10.1007/s00109-023-02368-7. Online ahead of print.ABSTRACTThe red blood cells (RBCs) are essential to transport oxygen (O2) and nutrients throughout the human body. Changes in the structure or functioning of the erythrocytes can lead to several deficiencies, such as hemolytic anemias, in which an increase in reactive oxidative species generation is involved in the pathophysiological process, playing a significant role in the severity of several clinical manifestations. There are important lines of defense against the damage caused by oxidizing molecules. Among the antioxidant molecules, ...
Source: Molecular Medicine - September 20, 2023 Category: Molecular Biology Authors: Carla Peres de Paula Jo ão Pedro Maia de Oliveira da Silva Karen Simone Romanello Victoria Sim ões Bernardo Flaviene Felix Torres Danilo Gr ünig Humberto da Silva Anderson Ferreira da Cunha Source Type: research
Cisplatin-induced DNA crosslinks trigger neurotoxicity in C. elegans
Biochim Biophys Acta Mol Cell Res. 2023 Sep 18:119591. doi: 10.1016/j.bbamcr.2023.119591. Online ahead of print.ABSTRACTThe anticancer drug cisplatin (CisPt) injures post-mitotic neuronal cells, leading to neuropathy. Furthermore, CisPt triggers cell death in replicating cells. Here, we aim to unravel the relevance of different types of CisPt-induced DNA lesions for evoking neurotoxicity. To this end, we comparatively analyzed wild-type and loss of function mutants of C. elegans lacking key players of specific DNA repair pathways. Deficiency in ercc-1, which is essential for nucleotide excision repair (NER) and interstrand...
Source: Biochimica et Biophysica Acta - September 20, 2023 Category: Biochemistry Authors: Fabian Wynen Johannes Krautstrunk Lisa Marie M üller Viktoria Graf Vanessa Brinkmann Gerhard Fritz Source Type: research
Comparative Studies of Essential Oil Composition and Biological Activities of Callistemon citrinus from western Himalaya
Chem Biodivers. 2023 Sep 20:e202301129. doi: 10.1002/cbdv.202301129. Online ahead of print.ABSTRACTThis work described a comprehensive study to estimate chemical constituents of essential oils (EOs) extracted from different parts of the Callistemon citrinus viz: fruits, leaves and aerial part. The EOs were characterized using physicochemical parameters, and GC-FID/MS. It was observed that among different parts, aerial part has the highest oil yield (0.90%) followed by leaves and fruits. Further, seventeen compounds were characterized, and represented total amount (97.2-99.5%) with domination of monoterpenes (12.5-34.6%) an...
Source: Chemistry and Biodiversity - September 20, 2023 Category: Biochemistry Authors: Sachin Vashisath Smita Kapoor Vandana Kumari Shabana Butt Dinesh Kumar Source Type: research
Assessment of the Alga < em > Cladophora glomerata < /em > as a Source for Cellulose Nanocrystals
Biomacromolecules. 2023 Sep 20. doi: 10.1021/acs.biomac.3c00380. Online ahead of print.ABSTRACTNanocellulose is isolated from cellulosic fibers and exhibits many properties that macroscale cellulose lacks. Cellulose nanocrystals (CNCs) are a subcategory of nanocellulose made of stiff, rodlike, and highly crystalline nanoparticles. Algae of the order Cladophorales are the source of the longest cellulosic nanocrystals, but manufacturing these CNCs is not well-studied. So far, most publications have focused on the applications of this material, with the basic manufacturing parameters and material properties receiving little a...
Source: Biomacromolecules - September 20, 2023 Category: Biochemistry Authors: Karl Mihhels Neptun Yousefi Jaanika Blomster Iina Solala Laleh Solhi Eero Kontturi Source Type: research
Applications and Challenges of Bacteriostatic Aptamers in the Treatment of Common Pathogenic Bacteria Infections
Biomacromolecules. 2023 Sep 20. doi: 10.1021/acs.biomac.3c00634. Online ahead of print.ABSTRACTThe continuous evolution and spread of common pathogenic bacteria is a major challenge in diagnosis and treatment with current biotechnology and modern molecular medicine. To confront this challenge, scientists urgently need to find alternatives for traditional antimicrobial agents. Various bacteriostatic aptamers obtained through SELEX screening are one of the most promising strategies. These bacteriostatic aptamers can reduce bacterial infection by blocking bacterial toxin infiltration, inhibiting biofilm formation, preventing ...
Source: Biomacromolecules - September 20, 2023 Category: Biochemistry Authors: Diandian Li Yuan Su Jie Li Rong Liu Bing Fang Jingjing He Wentao Xu Longjiao Zhu Source Type: research
Mineral elements and adiposity-related consequences in adolescents with intellectual disabilities
CONCLUSION: The intellectual disability of moderate type (MID) was associated with abnormal changes in the levels of essential mineral elements and adipokines and increased levels of cellular oxidative stress. Thus, evaluating plasma mineral elements and adipokines levels could be a potential diagnostic parameter for diagnosing MID.PMID:37730529 | PMC:PMC10512604 | DOI:10.1186/s12860-023-00490-5
Source: Mol Biol Cell - September 20, 2023 Category: Molecular Biology Authors: Ahmad H Alghadir Sami A Gabr Amir Iqbal Source Type: research
The implication of viability and pathogenicity by truncated lipopolysaccharide in Yersinia enterocolitica
In this study, truncated LPS caused by waaF deletion was used as a model of envelope stress in Y. enterocolitica. We investigated the mechanisms of envelope stress responses and the cellular functions affected by truncated LPS. Transcriptome analysis and phenotypic validation showed that LPS truncation reduced flagellar assembly, bacterial chemotaxis, and inositol phosphate metabolism, presenting lower pathogenicity and viability both in vivo and in vitro environments. Further 4D label-free phosphorylation analysis confirmed that truncated LPS perturbed multiple intracellular signal transduction pathways. Specifically, a c...
Source: Applied Microbiology and Biotechnology - September 20, 2023 Category: Microbiology Authors: Fan Wu Fengyun Ren Xixian Xie Jiao Meng Xin Wu Source Type: research
Whole-genome resequencing reveals new mutations in candidate genes for Beichuan-white goat prolificacya
In this study, we evaluated the copy number variation in the genomes of two groups of Beichuan-white goat populations with large differences in litter size by FST method, and identified 1739 genes and 485 missense mutations in the genes subject to positive selection. Through functional enrichment, ITGAV, LRP4, CDH23, TPRN, RYR2 and CELSR1 genes, involved in embryonic morphogenesis, were essential for litter size trait, which received intensive attention. In addition, some mutation sites of these genes have been proposed (ITGAV: c.38C > T; TPRN: c.133A > T, c.1192A > G, c.1250A > C; CELSR1: c.7640T > C), whos...
Source: Animal Biotechnology - September 20, 2023 Category: Biotechnology Authors: Aimin Zhou Yi Ding Xiaohui Zhang Yugang Zhou Yadong Liu Tingjian Li Long Xiao Source Type: research
Mechanisms of action of incretin receptor based dual- and tri-agonists in pancreatic islets
Am J Physiol Endocrinol Metab. 2023 Sep 20. doi: 10.1152/ajpendo.00236.2023. Online ahead of print.ABSTRACTSimultaneous activation of the incretin G protein coupled receptors via unimolecular dual-receptor agonists (UDRA) has emerged as a new therapeutic approach for type 2 diabetes. Recent studies also advocate triple agonism with molecules also capable of binding the glucagon receptor. In this scoping review we discuss the cellular mechanisms of action (MOA) underlying the actions of these novel and therapeutically important classes of peptide receptor agonists. Clinical efficacy studies of several UDRAs have demonstrate...
Source: American Journal of Physiology. Endocrinology and Metabolism - September 20, 2023 Category: Physiology Authors: Franco Folli Giovanna Finzi Roberto Manfrini Alessandra Galli Francesca Casiraghi Lucia Centofanti Cesare Berra Paolo Fiorina Alberto Davalli Stefano La Rosa Carla Perego Paul B Higgins Source Type: research
Real-time characterization of chemical threat agent aerosols for improvement of inhalation studies
CONCLUSIONS: In summary, the present work demonstrates the utility of the ELPI technology, in combination with off-line analysis, for characterizing aerosols with various size, shape, charge, and composition. This makes the aerosol generation and analysis suite described a promising tool for quantitative inhalation exposure studies.PMID:37729079 | DOI:10.1080/08958378.2023.2254323
Source: Inhalation Toxicology - September 20, 2023 Category: Respiratory Medicine Authors: Mirjam de Bruin-Hoeg ée Duurt P W Alkema Ruud W Busker Marloes J A Joosen Arjan L van Wuijckhuijse Source Type: research
