Publications by authors named "Qian-qian Ren"

Background: The aim of this study was to investigate the possible molecular mechanisms underlying cerebral small vessel disease caused by a missense mutation in the high-temperature serine peptidase A1 gene, (NM_002775.4, Exon4, c.905G>A, p.

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Molting is a key solution to growth restriction in insects. The periodic synthesis and degradation of chitin, one of the major components of the insect epidermis, is necessary for insect growth. MicroRNA (miRNA) have been implicated in molting regulation, yet their involvement in the interplay interaction between the chitin synthesis pathway and 20-hydroxyecdysone signaling remains poorly understood.

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High temperature requirement serine peptidase A1 (HTRA1) related cerebral small vessel disease (CSVD) includes both symptomatic heterozygous variant carrier and cerebral autosomal recessive arteriopathy with subcortical infarcts and leukoencephalopathy (CARASIL) patients. Presently, most reported symptomatic heterozygous variant carrier cases are sporadic family reports with a lack of specific characteristics. Additionally, the molecular mechanism of heterozygous gene variants is unclear.

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To investigate differences in fresh leaves of tea plants at different ages in gene expression, metabolism, and dried tea quality, and to provide references to a deep exploration on metabolite differential accumulation of fresh leaves of tea plants at different ages as well as the regulation mechanism, two groups of fresh leaves from tea plants at different ages (group JP: 20-, 200-, and 1,200-year tea plants; group YX: 50-, 100-, and 400-year tea plants) were chosen as materials, and their differences in gene expression, metabolites, and metabolic regulatory network were investigated by transcriptomics and metabolomics. A total of 12,706 differentially expressed genes (DEGs) were screened from the fresh tea leaves in the JP group, of which tea-20 vs. tea-200 had the largest number of DEGs, up to 9,041 (4,459 down-regulated genes, 4,582 up-regulated genes).

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MicroRNAs (miRNAs) are involved in the regulation of a variety of biological processes. However, the research on the regulatory role of bovine mammary epithelial cells (bMECs) is scarce. To date, there are no reports about the role of miR-199a-3p in bMECs.

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Article Synopsis
  • The study explored how pH levels interact with aluminum toxicity in sweet orange roots, focusing on energy-rich compounds, metabolites, and phytohormones.
  • Findings revealed that while aluminum toxicity reduced total energy-rich compounds at a pH of 4.0, it did not significantly affect them at pH 3.0, indicating that higher pH levels might help the roots adapt to aluminum stress.
  • Increased pH levels were linked to improved nutrient utilization and changes in hormone levels, suggesting that managing pH could help mitigate the harmful effects of aluminum on root health.
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Healthy mammary gland is essential for milk performance in dairy cows. MicroRNAs (miRNAs) are the key molecules to regulate the steady state of mammary gland in dairy cows. This study investigated the potential role of miR-29c in bovine mammary epithelial cells (bMECs).

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Circular RNAs (circRNAs) are widely involved in inflammatory responses, but their specific regulatory roles in cow mastitis remain controversial. In this study, RNA-seq was used to generate a circRNA expression profile, which identified 71 differentially expressed circRNAs (DEcircRNAs) in lipopolysaccharide (LPS)-stimulated MAC-T bovine mammary epithelial cells (bMECs) at different stages of inflammation. Functional analyses revealed that these DEcircRNAs may be involved in cellular proliferation, apoptosis, migration, and the inflammatory responses through regulation of numerous related signaling pathways.

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  • Limited data exists on how plants metabolically respond to copper (Cu) toxicity, prompting research on Cu's effects in 'Shatian' pummelo leaves, particularly focusing on various metabolic and physiological parameters.
  • An analysis revealed significant changes in metabolite levels, including 59 upregulated and 52 downregulated metabolites due to Cu toxicity, which impacted nitrogen assimilation and resulted in accumulated harmful substances.
  • Adaptive responses to Cu toxicity were observed, such as increased amino acid metabolism, enhanced carbohydrate accumulation, changes in lipid levels, and the production of various chelators and vitamins, though these antioxidants were insufficient to protect the leaves from oxidative stress.
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Thermal ablation in combination with transarterial chemoembolization (TACE) has been reported to exert a more powerful antitumor effect than thermal ablation alone in hepatocellular carcinoma patients. However, the underlying mechanisms remain unclear. The purpose of the present study was to evaluate whether sublethal hyperthermia encountered in the periablation zone during thermal ablation enhances the anticancer activity of doxorubicin in chronically hypoxic (encountered in the tumor area after TACE) liver cancer cells and to explore the underlying mechanisms.

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Protein tyrosine phosphatase 1B (PTP1B) is a negative regulator in the insulin signaling pathway. It belongs to a class of non-receptor phosphatases of protein tyrosine phosphatase and can catalyze the dephosphorylation of tyrosine to regulate cell differentiation, growth, and metabolism. However, few studies have focused on the role of PTP1B in regulating energy metabolism of insects.

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Ambroxol, a metabolite of bromhexine, is shown to exert several pharmacological activities, including secretolytic, anti-inflammatory and antioxidant actions. Oral and intravenous administration of ambroxol is useful for the airway inflammatory diseases. However, little is known about its potential in inhalation therapy for lipopolysaccharide (LPS)-induced mucous hypersecretion and inflammatory response.

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Bencycloquidium bromide (BCQB), a novel M3 receptor antagonist, alleviates airway hyperresponsiveness, inflammation, and airway remodeling in a murine model of asthma. The aim of this study was to investigate the anti-inflammatory activity of inhaled BCQB in a cigarette smoke (CS)-induced model of acute lung inflammation. Mice exposed to CS developed chronic obstructive pulmonary disease (COPD).

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