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Smooth muscle cells and fibroblasts in the ascending aorta exhibit minor differences between embryonic origins in angiotensin II-driven transcriptional alterations

Differential elimination of marked sex chromosomes enables production of nontransgenic male mosquitoes in a single strain

Diverse genetic strategies are being pursued to control mosquito-borne infectious diseases. These strategies often rely on the release of nonbiting males to either reduce the target mosquito population or render them resistant to pathogens. Male-only releases are important as any contaminating females can bite and potentially transmit pathogens. Despite significant efforts, it remains a major bottleneck to reliably and efficiently separate males from females, especially when nontransgenic males are preferred. In the yellow fever mosquito Aedes aegypti , sex is determined by a pair of homomorphic sex chromosomes, with the dominant male-determining locus (the M locus) and its counterpart (the m locus) embedded in an M-bearing and an m-bearing chromosome 1, respectively. We utilized both naturally occurring and engineered sex-linked recessive lethal alleles (RLAs) to create sex separation strains for Ae. aegypti on the basis of differential elimination of marked sex chromosomes (DeMark). DeMark strains are self-sustaining and produce nontransgenic males that are readily separated from individuals carrying RLA- and transgene-marked m chromosomes. For example, the marked m chromosome in the heterozygous mother in some strains was only inherited by her female progeny due to RLA-mediated incompatibility with the M-bearing chromosome in the father, producing nontransgenic males and transgenic females, generation after generation. We further explore strategies to conditionally eliminate females that contain marked sex chromosomes. We also discuss DeMark designs that are applicable for efficient sex separation in organisms with well-differentiated X and Y chromosomes, such as the Anopheles mosquitoes.

Multimodal learning audio-visual detection for obtaining object-level sound sources in Japanese-language teaching room

Achievement (not effort) makes people feel entitled to rewards

It is common to say that people feel entitled to rewards—they think they have earned or deserve them—based on their effort and achievement. However, effort and achievement draw on different principles to justify reward. They can also conflict over when people should feel entitled to rewards. These observations raise the question: In everyday settings, do people feel entitled to rewards because of their effort, achievement, or some combination of the two? To determine how effort and achievement contribute to feelings of entitlement, we hired online workers and varied the feelings of effort and achievement that their work induced. We then let those workers decide how large of a bonus we then paid them. Achievement strongly predicted how much participants paid themselves. Hard work, by contrast, played little-to-no detectable role.

Personal health data protection and intelligent healthcare applications under generative adversarial network

Ab initio stability predictions for rare earth oxyphosphates and experimental confirmation of cerium (III) phases

Rare earth oxyphosphates represent a large family of compounds with the general formula (RE 2 O 3 ) x (REPO 4 ), where RE refers to lanthanides and yttrium. At least four known stoichiometries have been established, each with distinct structures. These compounds have potential applications as refractory coatings, catalysts, and magnetic materials. We modeled the stability of RE 3 PO 7 [RE 3 (PO 4 )O 3 ] with respect to rare earth sesquioxides (RE 2 O 3 ) and orthophosphates (REPO 4 ) using DFT computations with the GGA-PBE and r2SCAN exchange-correlation functionals. Phase stability predictions were consistent between the two functionals, while r2SCAN calculations of formation enthalpies for REPO 4 showed better agreement with experimental data. RE 3 PO 7 phases for La–Dy were predicted to be stable at 0 K, with a space group change from Cm to C 2 /m starting with Sm. RE 3 PO 7 phases for Y, Ho, and Er were found to be stabilized by lattice vibrational entropies at temperatures above 800 K, 1,000 K, and 1,600 K, respectively. The formation of predicted cerium (III) oxyphosphate, isostructural to Nd 3 (PO) 4 O 3 , was confirmed through laser melting of monazite (CePO 4 ). Ce 3 (PO 4 )O 3 is monoclinic (space group Cm ) with experimentally measured cell parameters a = 12.989(1) Å, b = 13.413(1) Å, c = 12.396(1) Å, β = 108.06(1)°. The existence of a Ce member of RE 7 P 3 O 18 family with unknown structure was experimentally established. This work invites further exploration of RE oxyphosphates as functional materials and indicates the possible formation of Ce oxyphosphate upon monazite melting during impact events and their potential use in geothermometry.

Differences in risk factors associated with the initiation and progression of mitral annular calcification in asymptomatic individuals

Synergistic regulation of metal–organic cage architectures via temperature- and solvent-driven atropisomerism

Regulating multistimulus responses in artificial systems remains a challenge in smart material development. We present a versatile chemical switching system that precisely controls the self-assembly of metal–organic cages via temperature and solvent changes. The key component, cyclo[2](1,3-(4,6-dimethyl)benzene) (4-pyridine)[6](1,3-(4,6-dimethyl)benzene) ( CP2 ), was generated as three atropisomers ( 1 , 2 , and 3 ) with C s , C 1 , and C 2v symmetries. Thermally, metastable isomers ( 1 and 2 ) convert into the stable isomer ( 3 ), which reacts with Pd 2+ to form specific molecular cages. Depending on the solvent, either rectangular M 2 L 2 cages ( 5′ and 5 ) form in 1,4-dioxane or hexagonal M 3 L 3 cages ( 6 ) in 1,1′,2,2′-tetrachloroethane. The solvent dictates the cage type and enables reversible transformation between cages 5 and 6 . Additionally, cage 5 ′, formed from metastable isomer 1 , can switch to other cage types (i.e., 5 or 6 ) depending on temperature and solvent conditions. This multipathway system offers a precise strategy for controlling self-assembly in smart materials.

Patient safety competency and it associated with teamwork and psychological safety among emergency nurses in Iran

VCP’s nuclear journey: Initiated by interacting with KPNB1 to repair DNA damage

DNA damage repair (DDR) is essential for cancer cell survival and treatment resistance, making it a critical target for tumor therapy. The eukaryotic AAA+ adenosine triphosphatase valosin-containing protein (VCP), which is transported from the cytoplasm into the nucleus, plays a critical role in the DDR process. However, the nuclear translocation and molecular mechanism of VCP for DDR remain elusive. Here, we define VCP as a KPNB1 interacting protein through a combination of chemical and immunoprecipitation mass spectrometry approaches. Further biochemical studies elucidate that KPNB1 directly transports VCP into the nucleus. We also identify withaferin A (WA) as a small molecule that can retard VCP nuclear localization via covalent binding to CYS 158 of KPNB1. Further studies verify WA as an effective antitumor drug candidate via blocking VCP nuclear localization to impact on the DDR pathway in vivo. Our findings underly the unclear VCP’s role in DDR in a KPNB1-dependent manner and provide an important theoretical basis for developing small-molecule inhibitors targeting this process.

Risk factors and a nomogram model for deep vein thrombosis in critically ill patients with sepsis: a retrospective analysis

Structural insights into the ubiquitin-independent midnolin-proteasome pathway

The protein midnolin (MIDN) augments proteasome activity in lymphocytes and dramatically facilitates the survival and proliferation of B-lymphoid malignancies. MIDN binds both to proteasomes and to substrates, but the mode of interaction with the proteasome is unknown, and the mechanism by which MIDN facilitates substrate degradation in a ubiquitin-independent manner is incompletely understood. Here, we present cryoelectron microscopy (cryo-EM) structures of the substrate-engaged, MIDN-bound human proteasome in two conformational states. MIDN induces proteasome conformations similarly to ubiquitinated substrates by using its ubiquitin-like domain to bind to the deubiquitinase RPN11 (PSMD14). By simultaneously binding to RPN1 (PSMD2) with its C-terminal α-helix, MIDN positions its substrate-carrying Catch domain above the proteasome ATPase channel through which substrates are translocated before degradation. Our findings suggest that both ubiquitin-like domain and C-terminal α-helix must bind to the proteasome for MIDN to stimulate proteasome activity.

User preference modeling for movie recommendations based on deep learning

Coupling between electrons’ spin and proton transfer in chiral biological crystals

Proton transport plays a fundamental role in many biological and chemical systems. In life, proton transport is crucial for biochemical and physiological functions. It is usually accepted that the main mechanism of proton transfer is a result of hopping between neighboring water molecules and amino acid side chains. It was recently suggested that the proton transfer can be simultaneously coupled with electron transfer. As life is homochiral, proton transfer in biology is occurring in a chiral environment. In this environment, the chiral-induced spin selectivity effect relating to electron transfer and chirality is expected to occur. The present work establishes that the proton transfer is coupled to a specific electron spin polarization in lysozyme crystals, associating proton transfer to electron movement and polarization. To preserve total angular momentum, this motion may be coupled to chiral phonons that propagate in the crystal. Our work shows that the interaction of the electrons’ spin and phonons is very significant in proton transfer through lysosome crystals. Injecting the opposite electron spin into the lysosome crystal results in a significant change in proton transfer impedance. This study presents the support for the proton-coupled electron transfer mechanism and indicates the importance of spin polarization in the process.

An intelligent optimized object detection system for disabled people using advanced deep learning models with optimization algorithm

Spreading depolarizations exhaust neuronal ATP in a model of cerebral ischemia

Spreading depolarizations (SDs) have been identified in various brain pathologies. SDs increase the cerebral energy demand and, concomitantly, oxygen consumption, which indicates enhanced synthesis of adenosine triphosphate (ATP) by oxidative phosphorylation. Therefore, SDs are considered particularly detrimental during reduced supply of oxygen and glucose. However, measurements of intracellular neuronal ATP ([ATP] i ), ultimately reporting the balance of ATP synthesis and consumption during SDs, have not yet been conducted. Here, we investigated neuronal ATP homeostasis during SDs using two-photon imaging in acute brain slices from adult mice expressing the ATP sensor ATeam1.03 YEMK in neurons. SDs were induced by application of potassium chloride or by oxygen and glucose deprivation (OGD) and detected by recording the local field potential, extracellular potassium, as well as the intrinsic optical signal. We found that, in the presence of oxygen and glucose, SDs were accompanied by a substantial but transient drop in neuronal ATP sensor signals, corresponding to a drop in ATP. OGD, which prior to SDs was accompanied by only a slight reduction in ATP signals, led to a large, terminal drop in ATP signals during SDs. Subsequently, we investigated whether neurons could still regenerate ATP if oxygen and glucose were promptly resupplied following SD detection, and show that ATP depletion was essentially reversible in most cells. Our findings indicate that SDs are accompanied by a substantial increase in ATP consumption beyond production. This, under conditions that mimic reduced blood supply, leads to a breakdown of [ATP] i . Therefore, our findings support therapeutic strategies targeting SDs after cerebral ischemia.

Mapping conservation conflicts by integrating social network analysis and Q methodology: A sea turtle case from Sri Lanka

Circadian clock–gated cell renewal controls time-dependent changes in taste sensitivity

Circadian regulation of the cell cycle progression generates a diurnal supply of newborn cells to replace those lost in organs and tissues. In this study, we analyzed circadian time-dependent changes in cell types within the mouse tongue epithelium. Using single-cell RNA sequencing, we observed circadian time-dependent changes in the populations of stem/progenitor cells and the differentiated cells in mice tongues. Notably, we observed time-dependent changes in the type II taste cell population, which were abolished by ablation of taste bud stem cells, thereby inhibiting cell proliferation within the taste cell population. Through experiments with taste bud organoids (TBOs), we found a 24-h cell cycle period, which was disrupted by the knockdown of the core-clock gene Bmal1 . In TBOs, both cell divisions and apoptotic cells exhibited circadian time-dependent phenotypes. Interestingly, the time-dependent changes in cell death disappeared in the stem cell–ablated TBOs, indicating that the diurnal supply of newly born cells is essential for the rhythmic cell death phenotype. Additionally, taste tests conducted at different times of the day revealed time-dependent sensitivity changes originating from type II taste cells in mice. These findings suggest that the time-dependent changes in taste cell population are driven by circadian clock–regulated cell cycle progression and control time-dependent physiological regulation in the mouse tongue.

Multi-wavelength imaging photoplethysmography for non-invasive and non-contact assessment of burn severity

Distinct latitudinal patterns of molecular rates across vertebrates

The latitudinal diversity gradient (LDG) is the most notable global biodiversity pattern, but its underlying mechanisms remain unresolved. The evolutionary speed hypothesis (ESH) posits that molecular rates play a crucial role in shaping the LDG, suggesting that higher temperatures accelerate molecular rates, thereby facilitating rapid speciation and accumulation of biodiversity in the tropics. However, whether ESH can explain the LDG across diverse taxonomic groups remains debated, and systematic examinations of its two key predictions using consistent datasets and methodologies across vertebrates are lacking. Here, we tested ESH using molecular rates from mitochondrial (5,424 species) and nuclear (1,512 species) genomes across major vertebrate groups, including fishes, amphibians, reptiles, mammals, and birds. Our findings revealed distinct latitudinal patterns in the absolute synonymous substitution rate (dS), which were influenced by thermoregulatory strategies. Specifically, the dS increases with ambient temperature and decreases with latitude in ectotherms but shows no correlation in most endotherms. These distinct patterns are likely attributed to different key predictors of dS between thermogroups, with temperature playing a major role only in ectotherms. For mitochondrial genes, absolute nonsynonymous substitution rates (dN) increase with temperature, likely driven by mutation rates in ectotherms and purifying selection in endotherms. However, neither mitochondrial dS nor dN correlates with diversification rates across vertebrates, contradicting the second prediction of ESH. For nuclear rates, the ESH was supported in reptiles and amphibians but not in mammals, birds, or fishes. In conclusion, our results provide limited support for ESH in vertebrates, underscoring the intricate processes that shape the LDG.