Nicotinamide mononucleotide restores impaired metabolism, endothelial cell proliferation and angiogenesis in old sedentary male mice.

Aging is accompanied by a decline in neovascularization potential and increased susceptibility to ischemic injury. Here, we confirm the age-related impaired neovascularization following ischemic leg injury and impaired angiogenesis. The age-related deficits in angiogenesis arose primarily from diminished EC proliferation capacity, but not migration or VEGF sensitivity.

Research on grading detection methods for diabetic retinopathy based on deep learning.

Objective: To design a deep learning-based model for early screening of diabetic retinopathy, predict the condition, and provide interpretable justifications.

Methods: The experiment's model structure is designed based on the Vision Transformer architecture which was initiated in March 2023 and the first version was produced in July 2023 at Affiliated Hospital of Hangzhou Normal University. We use the publicly available EyePACS dataset as input to train the model.

Butterfly classification and species discovery using genomics.

Genomic sequencing of worldwide butterfly fauna followed by phylogenetic analysis of protein-coding genes informs butterfly classification throughout the taxonomic hierarchy, from families to species. As a rule, we attribute the same taxonomic rank to more prominent clades of comparable divergence (i.e.

Descriptions of one hundred new species of Hesperiidae.

A century and a half since the time of Hewitson, we are experiencing a renaissance in species discovery fueled by whole genome sequencing. A large-scale genomic analysis of Hesperiidae Latreille, 1809 (Lepidoptera), including primary type specimens, reveals a deluge of species new to science. One hundred of them (one in a new genus) are described here from the New World (type localities are given in parenthesis): () Grishin, (Ecuador: Napo), Grishin, (Ecuador: Esmeraldas), Grishin, (Panama: Panama), () Grishin, (Ecuador: Zamora-Chinchipe), () Grishin, (Panama: Darien), () Grishin, (Ecuador: Napo), () Grishin, (Panama: Panama), () Grishin, (Ecuador: Pastaza), Grishin, (Panama: Colón), Grishin, (Ecuador: Napo), Grishin, (Ecuador: Esmeraldas), Grishin, (Guyana), Grishin, (Peru: Cuzco), Grishin, (Peru: Cuzco), Grishin, (Panama: Panama), Grishin, (Brazil: Mato Grosso), () Grishin, (Brazil: Rondônia), () Grishin, (Panama: Panama), () Grishin, (Ecuador: Napo), Grishin, (Brazil: Rondônia), Grishin, (Peru: Loreto), Grishin, (Suriname: Para), Grishin, (Brazil: Santa Catarina), Grishin, (Panama: Panama), Grishin, (Brazil: Santa Catarina), Grishin, (Ecuador: Orellana), Grishin, (Venezuela: Aragua), Grishin, (Guatemala), Grishin, (Guyana), () Grishin, (Panama: Darien), () Grishin, (Mexico: Guerrero.

New taxa of butterflies supported by genomic analysis.

Continuing with the genomic analysis of butterflies, we present a taxonomic update. As a result of this work, 3 genera, 6 subgenera, 16 species, and 2 subspecies are described as new. New genera and subgenera are (type species in parenthesis): Grishin, ( W.

Resolving inconsistencies between Plötz's descriptions and presumed type specimens of some Hesperiidae (Lepidoptera).

Comparing specimens curated in MfN as primary types of Hesperiidae names proposed by Carl Plötz with the original descriptions and unpublished drawings reveals a number of inconsistencies that we address. Lectotypes are designated for Butler, 1877, Plötz, 1881, and Plötz, 1884. Neotypes are designated for Plötz, 1882 and Plötz, 1882.

Genomic analysis reveals hidden species diversity in Fabricius (Lepidoptera: Riodinidae).

Genomic analysis of [Fabricius], 1807 (Lepidoptera: Riodinidae Grote, 1895) reveals species richness higher than anticipated. As a result, one subgenus, 22 species, and one subspecies are proposed as new (type species or type localities in parenthesis): Grishin, ( Prittwitz, 1865), () Grishin, (Peru: Rio Pachitea, Monte Alegre), () Grishin, (Guyana: Cuyuni-Mazaruni), () Grishin, (Brazil: Santa Catarina), () Grishin, (Panama: Darién), () Grishin, (Ecuador: Santo Domingo), () Grishin, (Peru: Cuzco), () Grishin, (Panama: Chiriquí), () Grishin, (Mexico: Tamaulipas), () Grishin, (Mexico: Nuevo León), () Grishin, (Argentina: Salta), () Grishin, (Peru: Piura), () Grishin, (Bolivia: La Paz), () Grishin, (Mexico: Sonora), () Grishin, (Peru: Madre de Dios), () Grishin, (Bolivia: La Paz), () Grishin, (Mexico: Chiapas), () Grishin, (Panama: Darién), () Grishin, (Panama: Darién), () Grishin, (Panama: Darién), () Grishin, (Panama: Panamá), () Grishin, (Peru: Cuzco), () Grishin, (Brazil: São Paulo), and () Grishin, (Brazil: Paraná). The following five taxa are (not subspecies): () Schaus, 1928, (not () (Linnaeus, 1767)), () Stichel, 1910, (not () Westwood, 1851), () Stichel, 1929, (not () Godman and Salvin, 1886), () R.

Pulp health and calcific healing of a complicated crown-root fracture with additional root fracture in a maxillary incisor: A case report.

Background: Complicated crown-root fracture (CRF) involves severe injury to the crown, root, and pulp, and may be accompanied by multiple root fractures. The loss of a tooth has lifelong consequences for children and teenagers, but the maintenance of pulp health and the calcific healing of multiple root fractures are rarely reported in the literature.

Case Summary: This case reports healing of a permanent tooth with complicated crown-root and additional root fractures, in which pulp health was maintained.

Genomics-based taxonomic rearrangement of Achlyodini and Carcharodini (Lepidoptera: Hesperiidae: Pyrginae).

Genomic analysis of Pyrginae Burmeister, 1878 (Lepidoptera: Hesperiidae Latreille, 1809) with an emphasis on the tribes Achlyodini Burmeister, 1878 and Carcharodini Verity, 1940 reveals many inconsistencies between the resulting phylogeny and the current classification. These problems are corrected by proposing new taxa, changing the ranks of others, or synonymizing them, and transferring species between genera. As a result, five subtribes, one genus, 20 subgenera, and one species are proposed as new: Cyclosemiina Grishin, (type genus Mabille, 1878), Ilianina Grishin, (type genus E.

Compound exposure of 2.8 GHz and 9.3 GHz microwave causes learning and memory impairment in rats.

The anxieties and concerns about health hazards caused by microwave has been growing recently. Previous studies have reported microwave induced structural and functional injuries to brain. However, the biological effects caused by compound microwave were largely unexplored.

Melanoma cell line-derived exosomal miR-424-5p: a key promoter of angiogenesis through LATS2 interaction.

Objectives: Melanoma is a highly aggressive and metastatic form of cancer, and the role of exosomal microRNAs (miRNAs) in its progression remains largely unexplored. This study aimed to investigate the effects of melanoma cell-derived exosomal miR-424-5p on angiogenesis and its underlying mechanisms.

Methods: Exosomes were isolated from melanoma cell lines A375 and A2058, and their effects on the proliferation, migration, and angiogenesis of human umbilical vein endothelial cells (HUVECs) were examined.

Deciphering the senescence-based tumoral heterogeneity and characteristics in pancreatic cancer: Results from parallel bulk and single-cell transcriptome data.

The prevalent intra- and intertumoral heterogeneity results in undesirable prognosis and therapy failure of pancreatic cancer, potentially resulting from cellular senescence. Herein, integrated analysis of bulk and single-cell RNA-seq profiling was conducted to characterize senescence-based heterogeneity in pancreatic cancer. Publicly available bulk and single-cell RNA sequencing from pancreatic cancer patients were gathered from TCGA-PAAD, PACA-AU, PACA-CA, and GSE154778 datasets.

Fast optimization of the emission reduction pathways of major air pollutants in China: From the perspective of different decision preferences.

To address the concern of optimization problem of China's PM control and the limitation of computational efficiencies for traditional air quality models, we developed an integrated analysis framework to efficiently establish the identification and cost-benefit assessment of PM control pathways in China by constructing a rapid PM exposure response method based on the high-order decoupled direct method (HDDM) and coupling the sequential least square algorithm (SLSQP) and health impact assessment model. Six emission reduction scenarios with varying decision preferences were analyzed. Our study provides a methodological approach for the rapid optimization of emission pathways of major air pollutants in China with flexible options in terms of objectives and constraints, fully considering the diverse differences in environmental, health, and economic impacts among different pollution sources simultaneously.

Rethinking the biochar impact on the anaerobic digestion of food waste in bench-scale digester: Spatial distribution and biogas production.

The improvement of biogas production in anaerobic digestion (AD) by biochar introduction has been demonstrated. However, the distribution of biochar in the digester and its effect on AD have been seldom explored. In this study, the distribution of biochar and their impact on AD were investigated in a 30 L semi-continuously operated bench-scale anaerobic digester.

Spatial Distribution Characteristics of Micronutrients and Their Deficiency Effect on the Root Morphology and Architecture in Citrus Rootstock.

Roots play essential roles in the acquisition of water and minerals from soils in higher plants. However, water or nutrient limitation can alter plant root morphology. To clarify the spatial distribution characteristics of essential nutrients in citrus roots and the influence mechanism of micronutrient deficiency on citrus root morphology and architecture, especially the effects on lateral root (LR) growth and development, two commonly used citrus rootstocks, trifoliate orange ( L.

Establishment of a Yeast Two-Hybrid-Based High-Throughput Screening Model for Selection of SARS-CoV-2 Spike-ACE2 Interaction Inhibitors.

The recent coronavirus disease 2019 (COVID-19) pandemic, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has exerted considerable impact on global health. To prepare for rapidly mutating viruses and for the forthcoming pandemic, effective therapies targeting the critical stages of the viral life cycle need to be developed. Viruses are dependent on the interaction between the receptor-binding domain (RBD) of the viral Spike (S) protein (S-RBD) and the angiotensin-converting enzyme 2 (ACE2) receptor to efficiently establish infection and the following replicate.

Hybridization Design and High-Throughput Screening of Peptides with Immunomodulatory and Antioxidant Activities.

With the increasing recognition of the role of immunomodulation and oxidative stress in various diseases, designing peptides with both immunomodulatory and antioxidant activities has emerged as a promising therapeutic strategy. In this study, a hybridization design was applied as a powerful method to obtain multifunctional peptides. A total of 40 peptides with potential immunomodulatory and antioxidant activities were designed and screened.

Glucocorticoids on bone remodeling in systemic lupus erythematosus mice.

Background: Systemic lupus erythematosus requires glucocorticoids for management. This study investigates how glucocorticoids influence bone in a SLE mouse model, focusing on bone mineral density (BMD), microstructure, and remodeling markers.

Methods: MRL/lpr and C57BL/6 mice were administered dexamethasone or saline as a control for 4-weeks.

Investigation of the osteogenic effects of ICA and ICSII on rat bone marrow mesenchymal stem cells.

Icariin (ICA) serves as the primary biologically active compound in traditional Chinese medicine Epimedium, while Icariside II (ICSII) represents one of its gastrointestinal metabolites. Although ICA and ICSII have demonstrated osteogenic differentiation- promoting effects on BMSCs, there is limited literature comparing their effects and underlying mechanisms. This study aimed to compare the osteogenic effects of Icariin and Icariside II, along with their respective osteogenic mechanisms.

Child exposure to N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD) and its derived quinone (6PPDQ) in e-waste areas: Urinary concentrations, sources, and health effect assessment.

N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine quinone (6PPDQ) and its parent 6PPD are ubiquitous in the environment and may induce multi-endpoint toxicity. Electronic waste (e-waste) dismantling is an under-recognized source of 6PPD and 6PPDQ emissions, and there is a lack of epidemiological investigations into their presence and health effects in local populations. This study aimed to determine the urinary concentrations of 6PPD and 6PPDQ in children aged 2-7 years from e-waste dismantling areas and evaluate their potential risk to physical growth.

A two-branch framework for blood pressure estimation using photoplethysmography signals with deep learning and clinical prior physiological knowledge.

Objective: This paper presents a novel dual-branch framework for estimating blood pressure (BP) using photoplethysmogram (PPG) signals. The method combines deep learning with clinical prior knowledge and models different time periods (morning, afternoon, and evening) to achieve precise, cuffless BP estimation.

Approach: Preprocessed single-channel PPG signals are input into two feature extraction branches.

3D Mechanical Response Stem Cell Complex Repairs Spinal Cord Injury by Promoting Neurogenesis and Regulating Tissue Homeostasis.

Spinal cord injury (SCI) leads to acute tissue damage that disrupts the microenvironmental homeostasis of the spinal cord, inhibiting cell survival and function, and thereby undermining treatment efficacy. Traditional stem cell therapies have limited success in SCI, due to the difficulties in maintaining cell survival and inducing sustained differentiation into neural lineages. A new solution may arise from controlling the fate of stem cells by creating an appropriate mechanical microenvironment.

Contrast-enhanced ultrasound of collecting duct carcinoma in the renal: a case report misdiagnosed as renal abscess on computed tomography scan.

Collecting duct carcinoma (CDC), also known as Bellini duct carcinoma, is a rare malignancy with significant challenges in early diagnosis. This paper presents a case report of CDC that was misdiagnosed as renal abscess on computed tomography (CT). A 49-year-old male patient was admitted to the hospital with bilateral lumbar pain, exacerbated on the left side, accompanied by hematuria.

The role of Exo70s in plant defense against pathogens and insect pests and their application for crop breeding.

Plant diseases caused by pathogens and pests lead to crop losses, posing a threat to global food security. The secretory pathway is an integral component of plant defense. The exocyst complex regulates the final step of the secretory pathway and is thus essential for secretory defense.

Metformin carbon dots enhance neurogenesis and neuroprotection in Alzheimer's disease: A potential nanomedicine approach.

Alzheimer's disease (AD) is characterized by progressive cognitive decline due to neuronal damage and impaired neurogenesis. Preserving neuronal integrity and stimulating neurogenesis are promising therapeutic strategies to combat AD-related cognitive dysfunction. In this study, we synthesized metformin carbon dots (CMCDs) using a hydrothermal method with metformin hydrochloride and citric acid as precursors.