Publications by authors named "Zhi Yong Shen"

Article Synopsis
  • Graphene and its derivatives are gaining attention in various fields, particularly in biomedicine for malignant tumors due to their unique properties.
  • The study reviews recent research on the use of graphene in early tumor diagnosis and therapies, including techniques like MRI, photodynamics, and ultrasonic treatments.
  • The research indicates that graphene and its derivatives significantly contribute to both diagnosing and treating tumors, while also highlighting their biocompatibility.
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The "real world" treatment mode and clinical efficacy of locally advanced esophageal squamous cell carcinoma (LAESCC) are unclear. Meanwhile, the role of immunotherapy in the clinical practice is also puzzling. We conducted the research to investigate the statue of "real world" LAESCC.

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Objective: To analyze the MRI findings of stage IA ovarian cancer.

Methods: The data on age distribution, clinical symptoms at onset, CA125 detection, MRI findings, including tumor volume, structure, diffusion-weighted imaging (DWI), apparent diffusion coefficient (ADC) and enhancement, etc., of the patients with stage IA ovarian cancer, who were admitted to Nantong tumor Hospital between 2013 and 2020 were analyzed retrospectively.

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  • COVID-19, which emerged in late 2019, remains a global pandemic nearly a year later.
  • The diagnosis relies on epidemiological history, clinical symptoms, and various examinations, including imaging tests like CT scans.
  • This article focuses on the advancements in CT imaging related to COVID-19 diagnosis and management, including the detection of asymptomatic cases and monitoring patient recovery.
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  • The study focused on the poorly understood cryptic clade II of Escherichia, analyzing its genomes to explore ecological differentiation between strains found in gastrointestinal vs. external environments.
  • Researchers used delta bitscore metrics to examine functional differences in orthologous genes and applied a random forest classifier to classify genomes based on their habitats.
  • Findings showed gene degradation was more prominent in gastrointestinal strains, and the model accurately predicted habitat associations for an independent set of strains, indicating distinct genomic adaptations to different environments.
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Gastric cancer (GC) is one of the most leading malignancies. Long noncoding RNA is related to GC. In this study, 11 miRNAs in the exosomes and six lncRNAs in the tissues was examined by qRT-PCR.

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The diverse expression pattern of CD36 reflects its multiple cellular functions. However, the roles of CD36 in colorectal cancer (CRC) remain unknown. Here, we discover that CD36 expression is progressively decreased from adenomas to carcinomas.

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To assess the efficacy of the combination of sonographic morphology score (SMS) with CA125 and HE4 for detecting recurrent pelvic ovarian carcinoma (OC). Data of 58 OC patients treated in our hospital between 2014 and 2016 were analyzed. After cytoreductive surgery and routine chemotherapy, all patients were followed up by transvaginal ultrasound examination (SMS for pelvic masses based on volume and structure scores) and tumor marker (serum CA125 and HE4) detection.

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  • * When exposed to 20-kHz ultrasound, the artery filled with SonoVue MBs showed tremors and six leakage events, revealing defects and irregularities in its structure.
  • * In contrast, a control artery filled with saline did not show any damage or leakage, indicating that the combination of ultrasound and MBs significantly increases the risk of vessel rupture.
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The aim of the present study was to explore the therapeutic effect of 20 kHz ultrasound (US) and microbubbles (MBs) on rabbit VX2 liver tumors by spiral computed tomography (CT) scanning. A total of 16 New Zealand rabbits with hepatic VX2 tumors were divided into four groups: Control, MB, low-frequency US and US + MB. The treatment effect was evaluated by spiral CT scanning prior to, during and following treatment (at 0 weeks and the end of 1 and 2 weeks).

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  • The study evaluated the effectiveness of using ultrasound (US) and microbubbles to deliver CD151 in treating myocardial infarction (MI) in rabbits.
  • The experimental design included five groups of MI rabbits treated with different combinations of CD151 and ultrasound conditions to evaluate changes in CD151 expression and heart function after treatment.
  • Results showed that CD151 delivery improved heart function and increased vessel density in the heart, suggesting that US microbubbles can enhance the therapeutic effects of CD151 for myocardial infarction.
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  • The study aimed to assess a new sonographic morphology score (SMS) for distinguishing between malignant and benign ovarian tumors.
  • Data from 84 ovarian tumor cases were analyzed to create the new SMS, which was compared to an older SMS and traditional biomarkers (CA-125 and CA-72-4).
  • The new SMS showed a higher diagnostic efficacy with an area under the ROC curve of 0.836 compared to 0.709 for the old SMS, demonstrating its potential usefulness in clinical settings, except for ovarian thecoma cases.
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Objective: To construct a MYH9 gene knockout model in MGC803 cell line using transcription activator-like effector nuclease (TALEN) and observe its effect on cell cycle and apoptosis.

Methods: According to FastTALE(TM) TALEN Kit, we designed TALEN pairs and constructed the plasmids targeting to MYH9 gene. After detecting their activity in MGC803 cells by plasmid transfection, DNA sequencing, RT-PCR and western blot, we selected the monoclonal cells and studied the changes in the cell cycle and apoptosis.

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  • Elevated S100P expression is linked to colorectal cancer (CRC) metastasis and poor prognosis, being a more effective predictor than traditional markers like CEA and CA19-9.
  • High S100P levels were shown to enhance the invasiveness and ability of CRC cells to metastasize, supported by experiments involving stable S100P knockdown and xenograft growth in mice.
  • The process by which S100P promotes cancer progression involves activating the RAGE/ERK signaling pathway and inducing epithelial-mesenchymal transition (EMT), with RAGE being essential for this effect in colon cancer.
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Objective: Low-frequency ultrasound (US) in combination with microbubbles (MBs) is able to inhibit the growth of VX2 rabbit liver tumors. In this study, we investigated the feasibility of using percutaneous ethanol injection (PEI) followed by low-frequency ultrasound and microbubbles (USMB) to inhibit VX2 tumor growth.

Methods: Eighteen New Zealand rabbits with hepatic VX2 tumors were divided into three groups: PEI, low-frequency ultrasound and MBs followed by PEI (USMB + PEI), and PEI followed by USMB (PEI + USMB).

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Recent evidence suggests that miR-520 family has an important role in regulating tumorigenesis and development of various types of solid cancers. However, as one of the most common cancers in the world, there is little known about the underlying regulatory mechanisms of miR-520 in colorectal cancer (CRC). In the present study, we investigated the expression of microRNA-520d-5p (miR-520d-5p) in CRC specimens and then explored its potential role and mechanism in CRC progression.

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  • The study analyzed HIV-1 subtype CRF01_AE among newly diagnosed adolescents and young adults in Guangxi Province, China, focusing on drug resistance and cluster distribution from 2009 to 2013.
  • A total of 216 sequences were identified, showing significant clustering in Hezhou (mainly cluster 2) and Liuzhou (predominantly cluster 1), while Nanning exhibited a more even distribution of clusters.
  • The research discovered key transmitted drug resistance mutations, with the most common being M46I and Y181C, indicating a critical landscape for HIV treatment strategies in the region.
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and studies have identified that low-frequency ultrasound (US) and microbubbles (MBs) mediate tumor inhibitory effects. However, the application of US in the clinical setting remains unclear. The aim of the present study was to investigate the clinically therapeutic effect of 20 kHz US in combination with MBs for the treatment of hepatic carcinoma.

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The objective of this study was to evaluate the role of HOTAIR long noncoding RNA in gastric cancer metastasis. We analyzed HOTAIR expression levels by real-time reverse transcription PCR and Northern blot analysis in 100 gastric tissues (50 gastric cancer tissues and 50 adjacent normal mucosa), and in four gastric cancer cell lines. Transient RNAi-mediated knockdown and pcDNA-mediated overexpression of HOTAIR were performed.

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Purpose: Ultrasound is the most common imaging tool used to scan the tumours of hepatic carcinoma patients. However, very few studies have been performed to evaluate ultrasound imaging features for predicting tumour prognosis. Therefore, the goal of the current study was to evaluate preoperative ultrasound characteristics as prognostic factors that could affect survival rate after liver resection for hepatocellular carcinoma (HCC).

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MicroRNAs (miRNAs) are small non-coding RNA molecules that regulate the expression of targeted genes in a post-transcriptional manner. Increasing evidence indicates that miRNAs play important roles in cancer pathogenesis, including apoptosis, proliferation and differentiation, as oncogenes or tumor suppressors. Previously, miR-375 was shown to be involved in human gastric cancer, however, the mechanism remains poorly understood.

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The aim of the present study was to investigate the sonication effects of 21-kHz ultrasound (US) with microbubbles (MBs) on the subcutaneous prostate tumors of nude mice. In total, 15 tumor-bearing nude mice were divided into three groups: The control group, the low-frequency US group and the US+MB group. The MBs used were from US contrast agent SonoVue.

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High-intensity focused ultrasound in combination with microbubbles (MBs) is able to inhibit the growth of VX2 rabbit liver tumors in vivo and prolong the survival time of the animals. In this study, we attempt to investigate the feasibility of VX2 tumor growth inhibition using low-frequency ultrasound (US)-mediated MB disruption. Forty-eight New Zealand rabbits with hepatic VX2 tumors were divided into four groups: control, MBs group, low-frequency US group, and US + MB group.

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Objective: To monitor the current HIV prevalence, related risk behaviors and factors for HIV infection among the elderly male clients of the commercial female sex-workers (CFSW)in Guangxi.

Methods: Face to face interview on male clients aged ≥40 years old was carried out in April to July, 2012. Information on demography, awareness of HIV prevention, related risk behaviors, history on HIV testing etc.

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