Publications by authors named "Qian Qian Chen"

Chronic visceral pain stems from internal organs and is frequently associated with functional gastrointestinal disorders, like irritable bowel syndrome (IBS). Since the underlying mechanisms of visceral pain remain largely unclear, clinical management is often limited and ineffective. Comprehensive research into the pathogenesis of visceral pain, along with the development of personalized therapeutic strategies, is crucial for advancing treatment options.

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While the SARS-CoV-2 vaccine offers 70%-95% protection effectiveness against Coronavirus disease 2019 (COVID-19), a portion of recipients do not produce adequate protective immune responses, particularly, neutralizing antibodies (nAbs). Previous studies of COVID-19 patients have identified several public antibody lineages, such as IGHV3-30, IGHV3-33, IGHV3-53, IGHV1-58, and IGHV1-24. However, it remains unclear how these public antibodies evolve during vaccination or whether there are any special antibody lineages correlated with SARS-CoV-2 vaccination.

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The effect of legume proteins (soy protein (SP), chickpea protein (CP) and peanut protein (PP)) on the properties of wheat starch-lauric acid (WS-LA) system and its intrinsic mechanism were investigated. RVA, digestion experiment and TGA results showed that legume proteins prompted the viscosity peak formation during cooling stage and increased anti-digestion and thermal stability of WS-LA system. FT-IR, Raman, XRD and C NMR results indicated that legume proteins improved the long-range and short-range ordering degree and single-helix structure of WS-LA system.

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This letter comments on the article that developed and tested a machine learning model that predicts lymphovascular invasion/perineural invasion status by combining clinical indications and spectral computed tomography characteristics accurately. We review the research content, methodology, conclusions, strengths and weaknesses of the study, and introduce follow-up research to this work.

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Aldosterone-producing adenoma is a subtype of primary aldosteronism. Recent advancements in multi-omics research have led to significant progress in understanding primary aldosteronism at the genetic level. Among the various genes associated with the development of aldosterone-producing adenomas, the KCNJ5 (potassium inwardly rectifying channel, subfamily J, member 5) gene has received considerable attention due to its prevalence as the most common somatic mutation gene in primary aldosteronism.

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Despite significant progress in therapy, there remains a lack of substantial evidence regarding the molecular factors that lead to renal fibrosis. Neuraminidase 4 (NEU4), an enzyme that removes sialic acids from glycoconjugates, has an unclear role in chronic progressive fibrosis. Here, this study finds that NEU4 expression is markedly upregulated in mouse fibrotic kidneys induced by folic acid or unilateral ureter obstruction, and this elevation is observed in patients with renal fibrosis.

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Purpose: To summarize the ultrasonographic features of head and neck Castleman disease (CD), and to clarify its diagnostic key points.

Methods: Seven patients with head and neck CD confirmed by histopathology were collected from Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine. The clinical features and ultrasound findings of the patients were evaluated.

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Article Synopsis
  • The study aims to summarize the imaging characteristics of Warthin-like mucoepidermoid carcinoma (WT-MEC) using ultrasound, CT, and MRI to aid in clinical diagnosis.
  • Data was collected from 12 patients diagnosed with WT-MEC, analyzing the imaging results and identifying typical features like solitary masses with well-defined margins and solid-cystic components.
  • Most WT-MEC lesions displayed specific imaging traits, such as mixed-echoic echogenicity in ultrasound, heterogeneous enhancement in CT, and varying signal intensity in MRI, primarily appearing as solid-cystic masses in the parotid gland.
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Hypoxia can get more ability to inhibit inflammation. But how it impact on survival time of mesenchymal stem cells (MSCs) is confusing and how preconditioned MSCs inhibiting inflammation are partially known. Those issues decided the value of preconditioned MSCs by hypoxia.

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  • - The study reviews the effectiveness of contrast-enhanced spectral imaging (CEM) in diagnosing suspicious lesions in dense breast tissue, as previous data on its value was inconclusive.
  • - An extensive search identified 10 studies involving 827 patients and 958 lesions, revealing CEM had a high sensitivity (95%) and moderate specificity (81%) for detecting cancerous lesions in dense breasts.
  • - Results indicated that enhanced lesions with irregular margins are significantly linked to malignancy, suggesting CEM is a valuable tool for improving diagnostic accuracy in patients with dense breast tissue.
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  • * Researchers found that knocking in miR-3074-5p in pregnant mice resulted in higher levels of pro-inflammatory cytokines, more M1 macrophages, and increased embryo resorption compared to wild-type mice.
  • * The findings suggest that miR-3074-5p targets estrogen receptor-α, promoting harmful immune responses and potentially contributing to implantation issues in patients with repeated implantation failure by disrupting the inflammatory balance in early pregnancy.
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The nuclear cap-binding complex (CBC)-dependent translation (CT) is an important initial translation pathway for 5'-cap-dependent translation in normal mammal cells. Eukaryotic translation initiation factor 4A-III (eIF4A3), as an RNA helicase, is recruited to CT complex and enhances CT efficiency through participating in unwinding of secondary structure in the 5' UTR. However, the detailed mechanism for eIF4A3 implicated in unwinding of secondary structure in the 5' UTR in normal mammal cells is still unclear.

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Background: Gastric cancer (GC) stands as one of the most prevalent cancer types worldwide, holding the position of the second leading cause of cancer-related deaths. Gastric lesions represent pathological alterations to the gastric mucosa, with an elevated propensity to advance to gastric cancer. Limited research has explored the potential of stem cells in the treatment of gastric lesions.

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Background: Reflux esophagitis has an increasing prevalence and complex and diverse symptoms. Identifying its risk factors is crucial to understanding the etiology, prevention, and management of the disease. The occurrence of reflux esophagitis may be associated with food reactions, () infection, and metabolic syndromes.

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Metabolic associated fatty liver disease (MAFLD) is a common liver disease with a prevalence of up to 25%; it not only adversely affects human health but also aggravates the economic burden of society. An increasing number of studies have suggested that the occurrence of chronic noncommunicable diseases is affected by both environmental exposures and genetic factors. Research has also shown that environmental pollution may increase the risk of MAFLD and promote its occurrence and development.

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This letter comments on the article which reported that tenofovir alafenamide may increase blood lipid levels compared with entecavir in patients with chronic hepatitis B published on 2023 August 27. We review the related research content, topic selection, methodology, conclusions, strengths and weaknesses of this article. And evaluate it in relation to other published relevant articles.

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Birefringent crystals can manipulate the polarization state of lasers and have vital application in polarizers, optical isolators, phase compensators, The design and synthesis of crystals with large birefringence remains a challenging task. To design crystals with large birefringence, we combine an unprecedented chloroiodate(v) group (IOCl) featuring large polarizability anisotropy and a strong stereochemically active lone pair (SCALP) with the π-conjugated 2-amino-5-chloropyridine group. The superior synergy effect of (IOCl) and 2-amino-5-chloropyridine groups produces a new birefringent crystal, namely (CHNCl)(IOCl).

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Article Synopsis
  • - Restrictions on phthalates have led to the increased use of alternative plasticizers (APs) like organophosphate and adipate, which can easily migrate out of plastic products and contaminate food, raising environmental and health concerns.
  • - Toxicological studies suggest that APs could be harmful to human health, impacting endocrine functions and potentially causing neurotoxicity and other adverse effects, emphasizing the need to assess their risks in food products like sesame oil.
  • - Advanced detection methods, such as gas chromatography-quadrupole time-of-flight mass spectrometry (GC-Q-TOF/MS), offer high resolution and sensitivity for analyzing low levels of APs in complex samples, making them effective for monitoring contaminants in food products. *
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In this study, two novel alkalitolerant strains (FJAT-53046 and FJAT-53715) were isolated from sediment samples collected in Zhangzhou, PR China. Phylogeny based on 16S rRNA gene sequences suggested that strains FJAT-53046 and FJAT-53715 were new members of the genus . The two novel strains showed the highest 16S rRNA gene sequence similarity to DSM 16206, with values of 97.

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Background: Intrahepatic cholestasis of pregnancy (ICP) is a liver disorder that occurs in pregnant women and can lead to a range of adverse pregnancy outcomes. The condition is typically marked by pruritus (itching) and elevated levels of liver enzymes and bile acids. The standard treatment for ICP has generally been ursodeoxycholic acid and ademetionine 1,4-butanedisulfonate, but the efficacy of this approach remains less than optimal.

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In this study, we identify a novel class of second-order nonlinear optical (NLO) crystals, non-π-conjugated piperazine (HCN, PIP) metal halides, represented by two centimeter-sized, noncentrosymmetric organic-inorganic metal halides (OIMHs), namely HCNCdI (222) and HCNCdI (). HCNCdI is the first to be prepared, and its structure contains a CdI tetrahedron, which led to a poor NLO performance, including a weak and non-phase-matchable second harmonic generation (SHG) response of 0.5 × KHPO (KDP), a small birefringence of 0.

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Organic-inorganic hybrid nonlinear optical (NLO) materials are highly anticipated because of the integration of both merits of the organic and inorganic moieties. Herein, the 2-pyrimidinone cation (CHNO) has been incorporated into the iodate system to form two polymorphic organic-inorganic hybrid iodates, namely, α- and β-(CHNO)(IO)·HIO. They crystallize in different polar space groups ( and 2), and their structures feature one-dimensional (1D) chain structures composed of (CHNO) cations, IO anions, and HIO molecules interconnected via hydrogen bonds.

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Twenty-one previously undescribed compounds, including nineteen 3,4-seco-labdanes (nudiflopenes P-W, Y, A-J), one 3,4-seco-pimarane (nudiflopene X), and one labdane (nudiflopene Z), along with nine known compounds (one 3,4-seco-pimarane and eight 3,4-seco-labdanes) were isolated from the leaves of Callicarpa nudiflora Hook. Et Arn. The structures of these compounds were elucidated by high-resolution electrospray ionization mass spectrometry and one- and two-dimensional nuclear magnetic resonance spectroscopy.

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Article Synopsis
  • The study investigates the correlation between mammographic density in breast masses and whether they are benign or malignant, proposing a deep learning model (C2FTrans) to aid diagnosis based on this density.
  • Researchers conducted a retrospective analysis involving 401 breast lesions (158 benign and 243 malignant), employing manual and computer-aided methods to assess mammographic density and various regions around the lesions.
  • The results showed significant correlations between breast cancer likelihood, age, and mass density, with the developed model demonstrating high specificity and sensitivity for differentiating between benign and malignant lesions, indicating its potential as a diagnostic tool for radiologists.
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The functions of the influenza virus neuraminidase has been well documented but those of the mammalian neuraminidases remain less explored. Here, we characterize the role of neuraminidase 1 (NEU1) in unilateral ureteral obstruction (UUO) and folic acid (FA)-induced renal fibrosis mouse models. We find that NEU1 is significantly upregulated in the fibrotic kidneys of patients and mice.

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