Publications by authors named "Kai He"

The transgenerational impacts of pesticide mixture on Daphnia magna (D. magna) following long-term exposure, particularly regarding transcriptomic effects, remain poorly understood. We analyzed 470 irrigation water samples from various Chinese provinces.

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Shear emulsifying (SE), ball milling (BM), and autoclave treatment (AT) were utilized for the modification of lotus leaves, and the effects on in vitro gastrointestinal digestion and colonic fermentation of insoluble dietary fiber (IDF) from lotus leaves were compared. Compared with SEIDF and ATIDF, BMIDF released more polyphenols and exhibited better antioxidant capacity during in vitro gastrointestinal digestion. The IDF of lotus leaves changed the gut microbiota composition during in vitro colonic fermentation.

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The automatic left ventricle segmentation in transesophageal echocardiography (TEE) is of significant importance. In this paper, we constructed a large-scale TEE apical four-chamber view (A4CV) image dataset and proposed an automatic left ventricular segmentation method for the TEE A4CV based on the UNeXt deep neural network. UNeXt, a variant of U-Net integrating a multilayer perceptron, was employed for left ventricle segmentation in the TEE A4CV because it could yield promising segmentation performance while reducing both the number of network parameters and computational complexity.

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Tubulin polyglutamylation is a posttranslational modification that occurs primarily along the axoneme of cilia. Defective axoneme polyglutamylation impairs cilia function and has been correlated with ciliopathies, including Joubert Syndrome (JBTS). However, the precise mechanisms regulating proper axoneme polyglutamylation remain vague.

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Fluorinases represent the only known biological catalysts capable of forming carbon-fluorine bonds, but their slow catalytic rate limits their broader application. In this study, two fluorinases, FlA and FlA, were identified from a pool of 12 718 nonredundant proteins using a genome-mining approach, with FlA showing high catalytic activity. Both newly identified fluorinases contain a Phe50 residue in place of the Trp50 typically found in fluorinases.

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Purpose: Retinal neovascularization poses heightened risks of vision loss and blindness. Despite its clinical significance, the molecular mechanisms underlying the pathogenesis of retinal neovascularization remain elusive. This study utilized single-cell multiomics profiling in an oxygen-induced retinopathy (OIR) model to comprehensively investigate the intricate molecular landscape of retinal neovascularization.

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There is growing evidence that diet and aging are associated; however, few studies have examined the relationship between macronutrient subtypes and phenotypic age acceleration, and the extent to which BMI (body mass index) mediates this association is unclear. This study included 6911 individuals who were 20 years or older and had participated in the National Health and Nutrition Examination Survey. Daily macronutrient intakes were calculated and classified by the quartile of their subtypes.

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  • Preclinical models, such as patient-derived xenografts (PDX) and conditional reprogramming (CR), are essential in translational medicine to study diseases using cells derived from patients.
  • The CR technique uses irradiated mouse fibroblasts and a Rho kinase inhibitor to convert both normal and cancerous cells into a rapidly proliferating "stem-like" state while preserving the original genetic makeup.
  • The article focuses on the applications of CR technology for understanding and developing treatments for various respiratory diseases, highlighting its potential in personalized and regenerative medicine.
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  • The study looks at a problem with abnormal blood vessel growth in the eye that can cause vision loss, especially when current treatments don't work well for some patients.
  • Researchers tested a new approach using a drug that inhibits Bruton's tyrosine kinase (BTK) to see if it could help reduce inflammation and improve eye health.
  • The results showed that BTK inhibition reduced harmful blood vessel growth and inflammation without hurting the retina, suggesting this method could be a promising new treatment for eye diseases.
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The family Erinaceidae encompasses 27 extant species in two subfamilies: Erinaceinae, which includes spiny hedgehogs, and Galericinae, which comprises silky-furred gymnures and moonrats. Although they are commonly recognized by the general public, their phylogenetic history remains incompletely understood, and several species have never been included in any molecular analyses. Additionally, previous research suggested that the species diversity of Erinaceidae might be underestimated.

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Aberrant expression of cyclin-dependent kinase 5 (Cdk5) has been reported in pituitary adenomas. However, the role of Cdk5 in the tumorigenesis remains unclear. We show that prenatal p25-activated Cdk5 phosphorylates minichromosome maintenance protein 2 (Mcm2), enhancing minichromosome maintenance (MCM) family proteins and driving intermediate lobe-located melanotrope-originated pituitary tumorigenesis.

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  • The study looked at how changes in the eye structure affected vision in patients with a type of eye problem called rhegmatogenous retinal detachment (RRD).
  • It involved 46 patients and showed that after treatment, their vision got better and their eye structure improved within 3 months.
  • Patients with less fluid in their eyes recovered faster, and having a certain part of the eye intact helped their vision more than when it was damaged.
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Saponins are an important class of active components in Chinese herbal medicines (CHMs), which are present in large quantities in , , , etc., and have immune regulation, anti-tumor, anti-inflammatory, anti-cardiovascular disease, and hypoglycemic activities. Storage and processing are essential processes in the production process of CHMs which affect the stability of saponin components and then reduce the medicinal and economic value.

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  • Mammalian cardiac troponin I (cTnI) has an amino-terminal extension with serine targets that get phosphorylated to improve heart relaxation during increased heart activity.
  • Researchers found that some species like shrews and moles evolved to mimic this phosphorylation process, allowing them to maintain extremely high resting heart rates.
  • The study suggests that humans could improve heart function in heart failure by considering the removal of a weakly spliced exon found in cTnI, which has implications for heart health.
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  • Pharmaceuticals in the environment pose ecological risks, but most assessments overlook their metabolites, focusing instead on parent drugs like carbamazepine (CBZ).
  • This study investigates how CBZ and its metabolites behave in soil aquifer treatment (SAT) systems for wastewater reclamation, finding that the concentration of CBZ metabolites exceeds that of CBZ itself.
  • Results show that while the powerful metabolite carbamazepine-N-glucuronide (CBZ-N-Glu) decreases significantly during treatment, CBZ levels increase, indicating a need to evaluate both parent drugs and metabolites for potential ecological harm.
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This study investigated geospatial distributions of endocrine-disrupting chemicals (EDCs) in the waters of the Dongjiang River and their associations with anthropogenic activities. Fifteen EDCs, with total concentrations in the river water of 149-2525 ng/L were detected, with bisphenol-A, 4-nonylphenol, 4-tert-octylphenol, p-hydroxybenzoic acid, and methylparaben being the five predominant EDCs. The total estrogen concentration was high downstream and significantly correlated with the spatial distribution of urban land use, wastewater discharge, population, and gross domestic product, indicating human activities have increased estrogen levels and threatened ecological health.

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Despite the importance of cellular senescence in human health, how damaged cells undergo senescence remains elusive. We have previously shown that promyelocytic leukemia nuclear body (PML-NBs) translocation of the ciliary FBF1 is essential for senescence induction in stressed cells. Here we discover that an early cellular event occurring in stressed cells is the transient assembly of stress-induced nucleus-to-cilium microtubule arrays (sinc-MTs).

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Background: The choroid plexus (ChP) helps maintain the homeostasis of the brain by forming the blood-CSF barrier via tight junctions (TJ) at the choroid plexus epithelial cells, and subsequently preventing neuroinflammation by restricting immune cells infiltration into the central nervous system. However, whether chronic cerebral hypoperfusion causes ChP structural damage and blood-CSF barrier impairment remains understudied.

Methods: The bilateral carotid stenosis (BCAS) model in adult male C57BL/6 J mice was used to induce cerebral hypoperfusion, a model for vascular contributions to cognitive impairment and dementia (VCID).

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Background: Morphological changes in the abdominal wall muscle in diastasis recti abdominis (DRA) patients with low back pain (LBP) symptoms and whether there is a wider interrectus distance (IRD) remain unclear.

Objective: The aim of this study was to determine the correlation between DRA severity and LBP and the morphological differences in abdominal wall muscles between patients who presented with symptoms of LBP and those who were asymptomatic.

Methods: A total of 57 postpartum DRA patients were enrolled, including 21 without LBP, 36 with LBP, and 30 healthy nulliparous women.

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  • Tarlatamab, an immunotherapy targeting delta-like ligand 3, shows promising anticancer effects in small cell lung cancer (SCLC) based on the DeLLphi-300 and DeLLphi-301 trials, with manageable safety profiles.
  • In the extended follow-up of DeLLphi-300, the overall response rate was 25%, with a median duration of response of 11.2 months and a median overall survival of 17.5 months across 152 patients.
  • Among those receiving a specific dose regimen (10 mg every two weeks), 35.3% experienced a response, and notable intracranial tumor shrinkage was found in patients with existing brain lesions, highlighting tarlatam
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Neoadjuvant therapy (NAT) for early-stage pancreatic ductal adenocarcinoma (PDA) has recently gained prominence. We investigated the clinical significance of mucin 5 AC (MUC5AC), which exists in two major glycoforms, a less-glycosylated immature isoform (IM) and a heavily glycosylated mature isoform (MM), as a biomarker in resected PDA. Immunohistochemistry was performed on 100 resected PDAs to evaluate the expression of the IM and MM of MUC5AC using their respective monoclonal antibodies, CLH2 (NBP2-44455) and 45M1 (ab3649).

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Aberrant RNA modifications can lead to dysregulated gene expression and impeded growth in plants. Ribosomal RNA (rRNA) constitutes a substantial portion of total RNA, while the precise functions and molecular mechanisms underlying rRNA modifications in plants remain largely elusive. Here, we elucidated the exclusive occurrence of the canonical RNA modification N-methyladenosine (mA) solely 18S rRNA, but not 25S rRNA.

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  • The hydrogen oxidation reaction in alkaline media is essential for fuel cells and ammonia compressors but suffers from slow kinetics and the need for expensive platinum catalysts.
  • A new approach uses a combination of palladium (Pd) and ruthenium (Ru) to enhance platinum (Pt) catalysts' activity without sacrificing surface area, achieved through a thermal pyrolysis technique.
  • The resulting Pd-Ru decorated Pt catalyst shows significantly improved performance with a mass-based current density of 1557 ± 85 A g for the hydrogen oxidation reaction, making it effective for use in ammonia compressors.
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Biomedical Coreference Resolution focuses on identifying the coreferences in biomedical texts, which normally consists of two parts: (i) mention detection to identify textual representation of biological entities and (ii) finding their coreference links. Recently, a popular approach to enhance the task is to embed knowledge base into deep neural networks. However, the way in which these methods integrate knowledge leads to the shortcoming that such knowledge may play a larger role in mention detection than coreference resolution.

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