Publications by authors named "Gu Linhui"

Ovarian cancer is the third most common gynecological malignancy worldwide and the fifth leading cause of cancer-related death among women. This may be attributed to difficulties in diagnosing early-stage ovarian cancer, as it is typically asymptomatic until metastases, and due to the ineffective management of patients with late-stage ovarian cancer. The aim of the present study was to investigate potential therapeutic targets for the treatment of ovarian cancer.

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To investigate the dynamics of stomata, transpiration, and photosynthesis under varying light intensities and CO conditions during leaf development, the light response and CO response of stomatal conductance ( ), transpiration rate ( ), and net photosynthetic rate ( ) were observed for rice leaves at different days after leaf emergence (DAE). The results showed that (1) as photosynthetically active radiation (PAR) increased, leaf , , and initially increased rapidly and linearly, followed by a more gradual rise to maximum values, and then either stabilized or showed a declining trend. The maximum , , and were smaller and occurred earlier for old leaves than for young leaves.

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^{134}Xe is a candidate isotope for neutrinoless double beta decay (0νββ) search. In addition, the two-neutrino case (2νββ) allowed by the standard model of particle physics has not yet been observed. With the 656-kg natural xenon in the fiducial volume of the PandaX-4T detector, which contains 10.

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Article Synopsis
  • This study presents findings from the PandaX-4T experiment, focusing on detecting interactions between dark matter and nucleons through a dark mediator.
  • By analyzing low-energy ionization signal data and applying the Migdal effect, the researchers establish the most stringent limits on the cross section for dark matter masses between 30 MeV/c² and 2 GeV/c².
  • The research also challenges a model where a dark photon decays into scalar dark matter pairs, significantly limiting the possible parameters for this thermal relic dark matter scenario.
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We report a search for light dark matter produced through the cascading decay of η mesons, which are created as a result of inelastic collisions between cosmic rays and Earth's atmosphere. We introduce a new and general framework, publicly accessible, designed to address boosted dark matter specifically, with which a full and dedicated simulation including both elastic and quasielastic processes of Earth attenuation effect on the dark matter particles arriving at the detector is performed. In the PandaX-4T commissioning data of 0.

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Background: Ovarian cancer (OC) is the most lethal malignant gynecological tumor type for which limited therapeutic targets and drugs are available. Enhanced mitochondrial oxidative phosphorylation (OXPHOS), which enables cell growth, migration, and cancer stem cell maintenance, is a critical driver of disease progression and a potential intervention target of OC. However, the current OXPHOS intervention strategy mainly suppresses the activity of the electron transport chain directly and cannot effectively distinguish normal tissues from cancer tissues, resulting in serious side effects and limited efficacy.

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Article Synopsis
  • * We focused on low-energy events with specific ionization signals, detecting recoil energies ranging from 0.07 to 2.54 keV.
  • * Our results set the strictest limits for dark matter interactions over various mass ranges, most notably getting closer to the predicted interactions from early Universe mechanisms.
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A search for interactions from solar ^{8}B neutrinos elastically scattering off xenon nuclei using PandaX-4T commissioning data is reported. The energy threshold of this search is further lowered compared with the previous search for dark matter, with various techniques utilized to suppress the background that emerges from data with the lowered threshold. A blind analysis is performed on the data with an effective exposure of 0.

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Article Synopsis
  • The study focuses on measuring the half-life of two-neutrino double beta decay (DBD), which can help in the search for elusive Majorana neutrinos through neutrinoless double beta decay.
  • Researchers used the PandaX-4T dual-phase Time Projection Chamber (TPC) with 3.7-tonne natural xenon and released data from 94.9 days of physics experiments.
  • The resulting half-life measurement is 2.27 ± 0.03 () ± 0.10 () × 10 years, marking the first DBD half-life measurement with natural xenon and showcasing the effectiveness of a large-scale liquid xenon TPC for rare event searches.*
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We report a search on sub-MeV fermionic dark matter absorbed by electrons with an outgoing active neutrino using the 0.63  tonne year exposure collected by the PandaX-4T liquid xenon experiment. No significant signals are observed over the expected background.

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Article Synopsis
  • The study examines the absorption of fermionic dark matter by nuclei, which may provide a new way to detect light dark matter with a distinct monoenergetic signal.
  • Researchers analyzed 95.0 days of data from the PandaX-4T commissioning run to look for signals of fermionic dark matter absorption via a neutral current process.
  • They found no significant signal, establishing a minimum limit for the dark matter-nucleon interaction cross section at 1.5×10^{-50}  cm^{2} for a fermionic dark matter mass of 40  MeV/c^{2} with 90% confidence.
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We report a novel search for the cosmic-ray boosted dark matter using the 100  tonne·day full dataset of the PandaX-II detector located at the China Jinping Underground Laboratory. With the extra energy gained from the cosmic rays, sub-GeV dark matter particles can produce visible recoil signals in the detector. The diurnal modulations in rate and energy spectrum are utilized to further enhance the signal sensitivity.

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We report the first dark matter search results using the commissioning data from PandaX-4T. Using a time projection chamber with 3.7 tonne of liquid xenon target and an exposure of 0.

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We report constraints on light dark matter through its interactions with shell electrons in the PandaX-II liquid xenon detector with a total 46.9  tonnes/day exposure. To effectively search for these very low energy electron recoils, ionization-only signals are selected from the data.

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Objective: To investigate the efficacy and mechanism of ultrasound-targeted microbubble destruction (UTMD) combined with radiotherapy (XRT) on glioblastoma.

Methods: The enhanced radiosensitization by UTMD was assessed through colony formation and cell apoptosis in Human glioblastoma cells (U87MG). Subcutaneous transplantation tumors in 24 nude mice implanted with U87MG cells were randomly assigned to 4 different treatment groups (Control, UTMD, XRT, and UTMD + XRT) based on tumor sizes (100-300 mm).

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Cardamonin, a natural chalcone, is reported to induce apoptosis and inhibit cancer cell growth. However, the mechanisms underlying the therapeutic effects of cardamonin remain to be established. Here, we have focused on cardamonin-induced apoptosis in ovarian cancer cells, both and .

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We search for nuclear recoil signals of dark matter models with a light mediator in PandaX-II, a direct detection experiment in the China Jinping underground laboratory. Using data collected in 2016 and 2017 runs, corresponding to a total exposure of 54 ton day, we set upper limits on the zero-momentum dark matter-nucleon cross section. These limits have a strong dependence on the mediator mass when it is comparable to or below the typical momentum transfer.

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Ovarian cancer leads the worst prognosis among all types of gynecologic malignancies, and patients are often diagnosed at an advanced stage. Ovarian cancer also has a high rate of metastasis; however, the detailed mechanisms for ovarian cancer prone to metastasis remain unclear. In this study, we used continuous in vitro screening of the human ovarian cancer A2780 cell line to establish a cell line (A2780-M) which shows high invasiveness and motility.

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We report a new search for weakly interacting massive particles (WIMPs) using the combined low background data sets acquired in 2016 and 2017 from the PandaX-II experiment in China. The latest data set contains a new exposure of 77.1 live days, with the background reduced to a level of 0.

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Background: Wogonin is a plant monoflavonoid and has been reported to induce apoptosis of cancer cells and show inhibitory effect on cancer cell growth. However, the detailed and underlying molecular mechanisms are not elucidated. In this study, we investigated the molecular and biological effects of wogonin in human ovarian A2780 cancer cells.

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Transglutaminase 2 (TG2) plays important roles in cell survival and cancer progression. In this study, we examined TG2 expression in specimen of 194 patients diagnosed with non-small cell lung cancer (NSCLC), and found that the TG2 gene expression was significantly higher in lung cancer tissues as compared to paired incisal marginal tissues or normal tissues. Our data revealed that patients with lower level of TG2 expression detected in cancer tissues had longer disease free survival and overall survival as compared to the patients with higher TG2 expression.

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Objective: To investigate the effects of resuscitation with normal saline (NS), hypertonic saline (HTS), and hydroxyethyl starch (HES) on regulatory T cells (Tregs), helper T 1 (Th1)/Th2 and cytotoxic T 1 (Tc1)/Tc2 profiles in the treatment of hemorrhagic shock.

Methods: Rats subjected to severe hemorrhagic shock were resuscitated for 30 min with NS (n=8), HTS (n=8), or HES (n=8); sham (n=8) and naive control (n=8) groups were used for comparison. Following fluid resuscitation, the whole shed blood was reinfused for 30 min, and the rats were observed with continuous hemodynamic monitoring for 120 min.

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Polyphyllin I (PPI) is an active component in Rhizoma Paridis, which displays extensive pharmacological antitumor activities. In a previous study, we found that polyphyllin I exhibited inhibitory effects on cell growth in the human ovarian cancer HO-8910PM cell line, as well as promoting apoptosis and the inhibition of cell migration. Furthermore, gene expression was also profiled by microarray, which showed that numerous genes were altered by PPI; three genes were of particular note that were associated with tumor progression, namely, Caspase-9, C-jun and Wnt5a.

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Article Synopsis
  • Primary and acquired drug resistance significantly hinder the effectiveness of chemotherapy for high-grade serous ovarian cancer (HGSC), particularly with the drug cisplatin, which causes DNA damage.
  • Researchers found that certain long integrated non-coding RNAs (lincRNAs), especially H19, are expressed at higher levels in cisplatin-resistant cancer cells, suggesting their involvement in resistance mechanisms.
  • Knockdown of H19 in these resistant cells restored their sensitivity to cisplatin and revealed a connection between H19 and glutathione metabolism, indicating that lowering H19 expression affects the cancer cells' response to treatment by altering antioxidant levels.
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