Publications by authors named "Xiao- feng Li"

Background: Timely and accurate evaluation of the patient's pulmonary arterial pressure (PAP) is of great significance for the treatment of congenital heart disease. Currently, there is no non-invasive gold standard method for evaluating PAP.

Aim: To assess the prognostic value of lipocalin-2 (LCN2) in relation to PAP in patients with congenital heart disease associated with pulmonary artery hypertension.

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Hypothalamic kisspeptin (Kiss1) neurons are vital for pubertal development and reproduction. Arcuate nucleus Kiss1 (Kiss1) neurons are responsible for the pulsatile release of gonadotropin-releasing hormone (GnRH). In females, the behavior of Kiss1 neurons, expressing Kiss1, neurokinin B (NKB), and dynorphin (Dyn), varies throughout the ovarian cycle.

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HLA-A*02:406 differs from HLA-A*02:01:01:01 by one nucleotide substitution in codon 116 in exon 3.

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HLA-A*02:407 differs from HLA-A*02:01:01:01 by one nucleotide substitution in codon 109 in exon 3.

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Article Synopsis
  • HLA-B*15:358 and HLA-B*15:02:01:01 are two variants of the HLA-B gene.
  • They differ by only one nucleotide change at position 685 in exon 4 of the gene.
  • This slight genetic variation may affect the function or expression of the HLA-B protein.
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(Berk.et Curtis) Berl. Et de Toni is the pathogen that causes grape downy mildew, which is an airborne disease that severely affects grape yield and causes huge economic losses.

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Background: Rheumatoid arthritis (RA) is characterized by chronic inflammation of the synovium of joints. Fibroblast-like synoviocytes (FLS) play an important role in RA pathogenesis. We aimed to investigate the effect of N-(4-methoxyphenyl) quinoline-8-sulfonamide (QS-3g) on the inflammatory response of FLS and explore the potential underlying mechanisms.

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Unlabelled: Zika virus (ZIKV) remains a significant public health threat worldwide. A number of adaptive mutations have accumulated within the genome of ZIKV during global transmission, some of which have been linked to specific phenotypes. ZIKV maintains an alternating cycle of replication between mosquitoes and vertebrate hosts, but the role of mosquito-specific adaptive mutations in ZIKV has not been well investigated.

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  • * Researchers found three specific chemicals produced by male beetles (pentadecyl acetate, cis-13-docosenol, and behenic acid) that seem to help them gather together.
  • * Tests showed that these chemicals can effectively lure more beetles into traps, making them useful for keeping track of and controlling beetle populations.
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  • * This study aimed to see if 71 identified risk genes for MPB in European men also apply to Han Chinese men, using a sample of 499 cases and 1,489 controls.
  • * The findings showed a significant link between the rs13405699 SNP and MPB in Han Chinese men, marking the first confirmation of this association in this population.
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  • Human Enterovirus 71 (EV71) is a major cause of hand, foot and mouth disease (HFMD) worldwide, with an inactivated vaccine already available, but new advanced vaccine candidates are being explored.
  • Researchers created two DNA-launched live attenuated vaccine candidates (pDL-EV71) that showed effectiveness in generating infectious EV71 in lab tests and were safe in animal models, with no clinical symptoms reported.
  • Immunization with pDL-EV71 led to strong antibody responses, and a single dose provided complete protection against severe EV71 infection in newborn mice, indicating its potential as a viable vaccine candidate for further research.
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  • The study focuses on Huanglian Wendan (HLWD), a traditional Chinese medicine, to treat metabolic-associated fatty liver disease (MAFLD) and atherosclerosis, both common health issues that often occur together.
  • Researchers aimed to identify the effective compounds in HLWD and understand how they work against MAFLD and atherosclerosis, using advanced techniques like ultrahigh-performance liquid chromatography and network analysis.
  • The results revealed 18 active components in HLWD and demonstrated that it effectively improves liver health and reduces body weight and blood lipids in a mouse model of MAFLD and atherosclerosis.
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Background: Osteoarthritis (OA) is a degenerative osteoarticular disease, involving genetic predisposition. How the risk variants confer the risk of OA through their effects on proteins remains largely unknown. Therefore, we aimed to discover new and effective drug targets for OA and its subtypes.

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Purpose: To develop a predictive model using machine learning for levothyroxine (L-T4) dose selection in patients with differentiated thyroid cancer (DTC) after resection and radioactive iodine (RAI) therapy and to prospectively validate the accuracy of the model in two institutions.

Methods: A total of 266 DTC patients who received RAI therapy after thyroidectomy and achieved target thyroid stimulating hormone (TSH) level were included in this retrospective study. Sixteen clinical and biochemical characteristics that could potentially influence the L-T4 dose were collected; Significant features correlated with L-T4 dose were selected using machine learning random forest method, and a total of eight regression models were established to assess their performance in prediction of L-T4 dose after RAI therapy; The optimal model was validated through a two-center prospective study (n=263).

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A new ACCC 20221 ( ACCC 20221) whole-cell catalyst with a high phenolic glycoside esters synthesis activity and large biomass was obtained after culture with glucose. The possible mechanisms were revealed by using comparative proteomics. It found the expression of proteins involved in post-translational modification, protein turnover, and chaperone, and RNA processing and modification was upregulated, which ensured the metabolic balance and accurate translation, correct folding, and post-translational modification of proteins, thus enhancing the production of lipases in ACCC 20221 cultured with glucose.

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Normal reproductive function and fertility rely on the rhythmic secretion of gonadotropin-releasing hormone (GnRH), which is driven by the hypothalamic GnRH pulse generator. A key regulator of the GnRH pulse generator is the posterodorsal subnucleus of the medial amygdala (MePD), a brain region that is involved in processing external environmental cues, including the effect of stress. However, the neuronal pathways enabling the dynamic, stress-triggered modulation of GnRH secretion remain largely unknown.

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Study Design: A retrospective, cross-sectional cohort study.

Objective: This study aims to investigate the association between paraspinal muscle parameters and single-segment degenerative lumbar spondylolisthesis (DLS).

Summary Of Background Data: The relationship between lumbar paraspinal muscles morphology and single-segment DLS remains unclear.

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The live attenuated hepatitis A virus vaccine H2 strain was developed by passaging a wild-type H2w isolate in cell cultures. Currently, the mechanism underlying its attenuation phenotype remain largely unknown. In this study, we generated a full-length infectious cDNA clone of the H2 strain using in-fusion techniques.

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Macrophage polarization is vital to mounting a host defense or repairing tissue in various liver diseases. Excessive activation of the NLR family pyrin domain containing 3 (NLRP3) inflammasome is related to the orchestration of inflammation and alcohol-associated liver disease (ALD) pathology. Rab GTPases play critical roles in regulating vesicular transport.

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Hypothalamic kisspeptin (Kiss1) neurons are vital for pubertal development and reproduction. Arcuate nucleus Kiss1 (Kiss1) neurons are responsible for the pulsatile release of Gonadotropin-releasing Hormone (GnRH). In females, the behavior of Kiss1 neurons, expressing Kiss1, Neurokinin B (NKB), and Dynorphin (Dyn), varies throughout the ovarian cycle.

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Background: Immunotherapy targeting factors related to immune imbalance has been widely employed for RA treatment. This study aimed to evaluate the efficacy and safety of low-dose interleukin (IL)-2 combined with tocilizumab (TCZ), a biologics targeting IL-6, in RA patients.

Methods: Fifty adults with active RA who met the criteria with complete clinical data were recruited, and divided into three groups: control group (n=15), IL-2 group (n=26), and IL-2+TCZ group (n=9).

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In this study, we developed a multi-site acylation strategy to improve the lipophilicity and cellular uptake of troxerutin, a natural flavonoid with many health-promoting bioactivities. By clarifying the acylation properties of troxerutin catalyzed by lipases from different sources, a series of troxerutin ester derivatives acylated at different sites was synthesized, including troxerutin dipropyl (TDP), tripropyl (TTP), tetrapropyl (TEP), dibutyl (TDB), monohexyl (TMH), monooctyl (TMO) and monodecyl (TMD) esters. Interestingly, the troxerutin esters acylated at multiple sites with shorter fatty chains (TDP, TTP and TEP) had similar lipophilicity to the mono-acylated esters bearing longer fatty chains (TMH, TMO and TMD, respectively) and meanwhile demonstrated surprisingly lower cytotoxicity than that of the long fatty-chain mono-esters.

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Background: Observational evidence suggests that type 1 diabetes mellitus (T1DM) is associated with the risk of osteoporosis (OP). Nevertheless, it is not apparent whether these correlations indicate a causal relationship. To elucidate the causal relationship, a two-sample Mendelian randomization (MR) analysis was performed.

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Article Synopsis
  • Auxin influences plant growth through various signaling pathways, with a notable one being the SCF-Aux/IAA-ARF pathway, and a recently discovered noncanonical pathway involving Transmembrane Kinase 1 (TMK1).
  • In apical hook development, auxin accumulation activates TMK1, leading to the phosphorylation and stabilization of IAA32/34, which ultimately inhibits cell elongation necessary for proper hook formation.
  • The study identifies the CKRW1/WAV3 E3 ubiquitin ligases as key players in targeting IAA32/34 for degradation, with their activity being inhibited by TMK1c phosphorylation, thereby regulating the balance of cell elongation on different sides of the apical hook.
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