Publications by authors named "Zhang Lihong"

Clonal plants can support the growth of their ramets in heterogeneous environments through clonal integration between the ramets. However, the role of clonal integration in modulating ramet photosynthesis under toxic stress, especially combined stress, is unclear. This study examines the impact of clonal integration on under three heterogeneous stresses (Pb, pyrene, and Pb+Pyrene) with two stolon connection conditions (connected and disconnected).

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Toxoplasma gondii is a ubiquitous protozoan parasite with a complex life cycle containing multiple developmental stages. The parasites have distinct gene expression patterns at different stages to enable stage specific life activities, but the underlying regulatory mechanisms are largely unknown. In this study, a nuclear complex is identified that controls the expression of developmentally regulated genes.

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Objective: To construct a non-invasive pre-hospital screening model and early based on artificial intelligence algorithms to provide the severity of stroke in patients, provide screening, guidance and early warning for stroke patients and their families, and provide data support for clinical decision-making.

Methods: A retrospective study was conducted. The clinical information of stroke patients (n = 53 793) were extracted from the Yidu cloud big data server system of the Second Affiliated Hospital of Dalian Medical University from January 1, 2001 to July 31, 2023.

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In mammals, the melatonin (Mel) concentration in the gastrointestinal tract is 400 times greater than in the pineal gland. However, the origin of Mel in the gastrointestinal tract and its role in reproductive regulation remains unclear. Therefore, we analyzed three potential Mel sources (feed, microorganisms, and the rumen wall) for their contribution to high Mel levels in the rumen and their biological effects.

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Background: This study explores the novel role of specific inflammatory factors in predicting infection risk among leukemia patients undergoing chemotherapy, providing new insights into managing leukemia-associated infections.

Methods: This prospective cohort study included 244 leukemia patients suspected of infection, divided into the infected group (n = 194) and the uninfected group (n = 50) based on etiological testing. The infected group was further categorized into bacterial (n = 123), fungal (n = 22), and viral (n = 49) infection subgroups.

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Aim: To assess the knowledge, attitude and practice (KAP) towards unnecessary urinary catheterisation among nurses in Taicang City, China.

Design: Cross-sectional study.

Methods: This study included nurses from our hospital and was conducted between February 2023 and June 2023.

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Article Synopsis
  • The study investigated how low and high concentrations of compounds B[a]P and Cd affect the growth and metabolism of the grass species Poa pratensis through pot experiments.
  • At low levels of Cd, the plants showed increased growth and antioxidant compounds, while high levels severely reduced growth and photosynthetic efficiency.
  • P. pratensis demonstrated a strong ability to tolerate and mitigate the toxic effects of these contaminants by enhancing its antioxidant activity and improving water-use efficiency, proving effective in degrading B[a]P and extracting Cd from contaminated soils.
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Ethnopharmacological Relevance: Lonicerae japonicae flos (LJF), the dried flower bud or newly bloomed flower of Lonicera japonica Thunb., is widely used in Traditional Chinese medicine (TCM), exhibiting anti-inflammatory and immune-enhancing properties. Luteolin (Lut) is a major bioactive component of LJF, demonstrating a regulatory role in immune disorders.

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Ebola virus (EBOV) is one of three filovirus members of the genus that can cause severe Ebola disease (EBOD) in humans. Transmission predominantly occurs from spillover events from wildlife but has also happened between humans with infected bodily fluids. Specifically, the sexual route through infectious male survivors could be the origin of flare up events leading to the deaths of multiple women.

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Preeclampsia (PE) is a serious pregnancy complication characterized by elevated blood pressure and a major cause of maternal and perinatal morbidities, also known to increase the risk of chronic kidney disease. Mechanisms underlying PE-induced kidney injury remain unclear. Anti-angiotensin II type 1 receptor agonistic autoantibody (AT1-AA) is reported to participate in the pathogenesis of PE-induced kidney injury.

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  • - Patients on maintenance hemodialysis (MHD) showed a higher risk and mortality rate during the COVID-19 pandemic; researchers investigated if plasma levels of ACE2 and TMPRSS2 influenced their susceptibility to the virus.
  • - Blood samples were taken from MHD patients in a COVID-free center in December 2022, and their levels of soluble ACE2, ACE, and TMPRSS2 were measured to assess correlations with COVID-19 infection within two weeks.
  • - The study found that MHD patients who tested positive for COVID-19 had higher levels of sACE2 and lower levels of sTMPRSS2. Identifying patients with these markers could help target those at greater risk during future COVID-19 outbreaks
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Background: Mechanical thrombectomy (MT) is standard of care for acute cerebral infarction (ACI) due to large vessel occlusions. However, its clinical efficacy in patients with ACI due to distal medium vessel occlusions (DMVOs) remains unclear. This study evaluates the efficacy and safety of MT in patients with ACI due to DMVOs.

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Cerebral ischemia/reperfusion injury (CIRI) refers to secondary damage caused by reperfusion of blood flow following ischemic stroke. Its mechanism is complex, involving mitochondrial energy metabolism disorders, Ca overload, oxidative stress, apoptosis, inflammatory responses, excitatory amino acid toxicity, blood-brain barrier disruption, excessive NO synthesis, and cell necrosis etc. Mitochondrial-associated endoplasmic reticulum membranes (MAMs) are specialized regions of the endoplasmic reticulum that play crucial roles in various cellular processes, including regulation of mitochondrial morphology and activity, lipid metabolism, Ca homeostasis, and cell viability.

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  • The study aimed to determine how acupuncture affects serum gastrin levels and urinary sodium excretion in spontaneously hypertensive rats (SHRs) to investigate its potential as a treatment for hypertension.
  • Thirty-two male SHRs were divided into four groups (model, hydrochlorothiazide, acupuncture, and sham acupuncture) to compare the effects of acupuncture and a diuretic over a 4-week period, measuring changes in blood pressure, urine volume, and renal tissue health.
  • Results indicated that while blood pressure was significantly higher in the model group compared to controls, both acupuncture and hydrochlorothiazide helped improve urinary function and potentially influenced pathways related to sodium handling in the kidneys.
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  • The study addresses the challenges of accurately identifying and segmenting brain gliomas using a newly designed deep-learning network called DMRA-U-Net, which improves early diagnosis and treatment of tumors.* -
  • DMRA-U-Net incorporates advanced techniques like dilated convolution residual modules and channel attention to enhance feature processing, aiming to reduce information loss during the segmentation of tumor regions.* -
  • Evaluation of the model on BraTS datasets shows significant improvements over traditional 3D U-Net in terms of segmentation accuracy, with higher dice similarity coefficients and lower Hausdorff distances for various tumor regions.*
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  • Drug resistance in cancer chemotherapy is a major issue, with cancer cells often shifting to fatty acid metabolism to evade treatment.
  • The researchers created a drug called folate-polySia (FpSA) that induces microcalcification in cervical cancer cells resistant to cisplatin, leading to decreased fatty acid uptake and increased glycolysis.
  • The combination of cisplatin and FpSA not only inhibited tumor growth but also improved survival rates in mice, suggesting a new strategy to tackle chemotherapy-resistant tumors by reprogramming cancer cell metabolism.
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Ethnopharmacological Relevance: Physical therapy is the main clinical treatment for limb symptoms after ischemic stroke, and there is a lack of reliable drug intervention programs. HouShiHeiSan (HS)comes from "Synopsis of the Golden Chamber", where it is recorded: "seauelae of wind stroke and heaviness of limbs", indicating this formulae is a promising opion for clinical practice.

Aim Of The Study: The aim of this study is to explore the therapeutic effect of HS on sarcopenia after ischemic stroke (ISS) by using the middle cerebral artery occlusion (MCAO) rats.

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Background: Myelodysplastic syndromes (MDS) are heterogeneous and clonal hematological disorders. The role and mechanism of necroptosis in MDS remain poorly understood.

Methods: mRNA expression profiles and single-cell RNA-sequencing (scRNA-seq) data were sourced from the GEO database.

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Article Synopsis
  • The study examined how the quality of discharge teaching (QDT) impacts patients' readiness for discharge (RHD) after a first-episode stroke, aiming to improve discharge processes and reduce hospital readmission rates.
  • A total of 372 patients completed assessments that measured QDT, RHD, self-efficacy, and self-management, with analysis showing strong positive relationships between these factors.
  • Results confirmed that QDT directly influences RHD and also affects it indirectly through improvements in self-efficacy and self-management, suggesting the need for tailored guidance plans to enhance discharge readiness.
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Purpose: This study aims to investigate the factors that influence the absorption of the ablation zone in patients with papillary thyroid microcarcinoma (PTMC) following microwave ablation (MWA) and construct a nomogram for predicting the absorption of the ablation zone.

Methods: Data from 150 patients with 187 PTMCs who received MWA between April 2020 and April 2023 were analyzed. PTMCs were randomly divided into training and validation sets in a 7:3 ratio.

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Pyridine and quinoline are typical nitrogenous heterocyclic compounds with different structures that are found in coking wastewater. However, neither the corresponding mechanism nor its effect on the degradation of NH-N under phenol stress is known. In this study, the effects of pyridine and quinoline degradation on NH-N removal under phenol stress were evaluated using three lab-scale sequencing batch reactors.

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Mitochondrial dysfunction is a hallmark of many genetic neurodegenerative diseases, but therapeutic options to reverse mitochondrial dysfunction are limited. While recent studies support the possibility of improving mitochondrial fusion/fission dynamics and motility to correct mitochondrial dysfunction and resulting neurodegeneration in Charcot-Marie-Tooth disease (CMT) and other neuropathies, the clinical utility of reported compounds and relevance of preclinical models are uncertain. Here, we describe motor and sensory neuron dysfunction characteristic of clinical CMT type 2 A in a CRISPR/Casp-engineered Mfn2 Thr105Met (T105M) mutant knock-in mouse.

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Background: Vascular endothelial growth factor (VEGF) is a candidate mediator of blood-brain barrier (BBB) disruption in depression. However, previous studies have mainly focused on peripheral blood VEGF levels, and the results are heterogeneous. Here we use astrocyte-derived extracellular vesicles (ADEVs) isolated from plasma to explore the in vivo changes of VEGF levels in patients with major depressive disorder (MDD).

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Article Synopsis
  • Patients with end-stage renal disease undergoing hemodialysis in China face a high rate of hyperkalemia (HK), a condition that can lead to serious heart issues, with 75.5% experiencing at least one episode over six months.
  • Among those who had HK, a significant majority (78.6%) had recurrent episodes, highlighting the chronic nature of the condition.
  • Despite the prevalence of HK, very few patients (only 5.3%) were treated with potassium binders, indicating a gap in effective long-term potassium management for these patients.
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