Publications by authors named "Qifeng Shi"

Chitosan nanoparticles (CSNPs) have been proposed as a potential alternative in alleviating chromium (Cr) toxicity. However, the mechanisms underlying remains poorly understood. This study investigates the effects of CSNPs on carbon/nitrogen metabolism, cell wall Cr binding capacity, and antioxidant activity in Zea mays L.

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Article Synopsis
  • Both melatonin and hydrogen sulfide (HS) play roles in reducing chromium (Cr) toxicity in maize, yet their specific interaction during detoxification remains unclear.
  • The study showed that Cr stress increases HS levels and activates melatonin production, leading to improved Cr tolerance through enhanced metabolic processes and antioxidant enzyme activity.
  • It was found that HS acts as a signaling molecule in the melatonin-mediated response to Cr, while blocking HS reduces the beneficial effects of melatonin on Cr tolerance.
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Alzheimer's disease (AD) is a progressive neurodegenerative disease. Neuronal calcium overload plays an important role in Aβ deposition and neuroinflammation, which are strongly associated with AD. However, the specific mechanisms by which calcium overload contributes to neuroinflammation and AD and the relationship between them have not been elucidated.

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Ethnopharmacological Relevance: Ginseng is a valuable herb in traditional Chinese medicine. Modern research has shown that it has various benefits, including tonifying vital energy, nourishing and strengthening the body, calming the mind, improving cognitive function, regulating fluids, and returning blood pressure, etc. Rg1 is a primary active component of ginseng.

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Background: Cervical cancer (CC) is currently the most common malignant tumour in the female reproductive tract, and paclitaxel (PTX) is a commonly used chemotherapeutic agent, but tumour cell resistance will seriously affect the therapeutic efficacy of PTX. Nanoparticle human serum albumin-bound paclitaxel (Nano-HSA-PTX) is a novel drug delivery modality that may have superior effects to PTX alone.

Objective: To clarify the effect of Nano-HSA-PTX on cervical carcinoma (CC) cells and the underlying mechanisms.

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Diabetic kidney disease (DKD), one of the common complications of type‑2 diabetes mellitus (T2DM), has become the principal cause of end‑stage kidney disease. Transient receptor potential channel 6 (TRPC6), one of non‑selective cation channels with significant calcium‑permeability, is associated with renal fibrosis. However, the mechanism of TRPC6 in T2DM‑induced renal fibrosis is still not entirely understood.

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Cervical cancer is a significant global health burden, necessitating a comprehensive understanding of its underlying molecular mechanisms to improve diagnostic and therapeutic strategies. In this study, we conducted an in-depth bioinformatics analysis of cervical cancer using a high-throughput microarray dataset, GSE9750. Through robust screening and selection, we identified 1633 differentially expressed genes (DEGs) associated with cervical cancer.

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Cerebral ischemia-reperfusion injury (CIRI) is a severe pathological condition that involves oxidative stress, inflammatory response, and neuronal damage. HY-021068 belongs to a new drug of chemical class 1, which is a potential thromboxane synthase inhibitor. Our preliminary experiment found that HY-021068 has significant anti-neuroinflammatory and neuroprotective effects.

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To further improve the mechanical properties and corrosion resistance of the biodegradable magnesium (Mg) alloy, the Mg-4Zn-0.5Sr-xAg alloy (x = 0.2 wt.

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Key Clinical Message: In conclusion author highlights the tumor cell genetic testing or molecular pathological diagnosis plays a key role in the individualized treatment of PSC, which could benefit patients with advanced PSC.

Abstract: An uncommon form of non-small-cell lung cancer (NSCLC) with a poor prognosis is pulmonary sarcomatoid carcinoma (PSC). Surgical resection is currently the preferred treatment, but guidelines for adjuvant chemotherapy have not yet been established, especially for the advanced stage.

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Diabetic kidney disease (DKD) is a severe complication of type 2 diabetes mellitus (T2DM). However, the pathogenesis of DKD remains unclear, and effective treatment strategies are still lacking. Ginsenoside Rg1 (Rg1) has been reported to improve DKD, but the mechanism is unclear.

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As the prevalence of diabetes and health awareness increase, type 2 diabetes mellitus -associated cognitive dysfunction is receiving increasing attention. However, the pathogenesis is not entirely understood. Transient receptor potential cation channel 6 (TRPC6) is highly correlated with intracellular Ca concentrations, and neuronal calcium overload is an important cause of cognitive dysfunction.

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Ethnopharmacological Relevance: Ginsenoside Rg1 (Rg1) is one of the main active components in Panax ginseng C. A. Meyer (ginseng), which has been widely used to delay senescence or improve health conditions for more than 2000 years.

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Objective: Trichomoniasis is a common sexually-transmitted disease that is associated with increased perinatal morbidity and human immunodeficiency virus (HIV) transmission. This study aimed to develop a Metronidazole-loaded nanoparticulate thermoreversible gel for gynecological infection of ().

Methods: The optimized nanoparticulate formulation was used in thermoreversible gel and characterized for physico-chemical properties, antiparasitic activity, and efficacy in the BALB/c mouse model.

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Artemether, a natural derivative of artemisinin, serves an antitumor role in numerous types of cancer. However, the role and mechanism of action of artemether in hepatocellular carcinoma (HCC) has remained elusive. The present study aimed to investigate whether artemether is able to inhibit the proliferation, invasion and migration of HCC cells by targeting cytochrome P450 family 2 subfamily J member 2 (CYP2J2).

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Disc degeneration is the main cause of discogenic low back pain, disc herniation, degenerative stenosis of spinal canal, lumbar spondylolisthesis and other diseases. In the process of intervertebral disc degeneration, water and extracellular matrix of nucleus pulposus tissues are lost, so the normal tension in the intervertebral disc cannot be maintained, which worsens the living environment of nucleus pulposus cells. Low back pain (LBP), with a high incidence rate of disability, has become an increasing health concern and a social and economic problem.

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Bacterial vaginosis (BV) is the most common vaginal infection found in women in the world. Due to increasing drug-resistance of virulent pathogen such as Gardnerella vaginalis (G. vaginalis), more than half of BV patients suffer recurrence after antibotics treatment.

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Article Synopsis
  • The study focuses on the role of certain genes in triple-negative breast carcinoma (TNBC), which is known for its high rates of metastasis and recurrence.
  • Researchers analyzed tumor samples to identify specific proteins, finding that Survivin and ZIC1 were significantly different from normal tissue levels and affected prognosis differently.
  • The presence of Survivin and absence of ZIC1 in patients was linked to worse clinical outcomes, suggesting that evaluating both could improve diagnosis and prognosis in TNBC cases.
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Article Synopsis
  • The study compares the role of the Oct4 protein in left-sided colon cancer (LCC) versus right-sided colon cancer (RCC).
  • It analyzed 151 pathology specimens and used various methods like immunohistochemistry and PCR to evaluate Oct4's role.
  • The findings indicated that Oct4 is linked to tumor differentiation and stages in both LCC and RCC, but specifically correlates with lymphatic invasion and survival rates in RCC, suggesting it could serve as a prognostic marker for that type.
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[Hemangiopericytoma in nasal cavity: a case report].

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi

May 2015

We report a case of a 46 year old female patient with nasal hemangiopericytoma. She complained of left nasal congestion, pus snot for 10 years, sometimes with left nasal bleeding. Physical examination: in the left nasal tract saw red soft neoplasm, roughness surface, easy bleeding when touched.

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The aim of this study was to elucidate the molecular mechanisms mediating hepatocyte growth factor (HGF)-induced protection against oridonin-induced apoptosis in A549 cells. Oridonin induced decrease in Bcl-2/Bax ratio and activation of caspase-3, while these processes were reversed by HGF, suggesting that HGF played an anti-apoptotic role in oridonin-induced A549 cell death. HGF-induced protective effect was partially attributed to the activation of nuclear factor (NF)-κB and cyclooxygenase 2 (COX-2), since the protective effect was abolished by inhibition of NF-κB or interruption of COX-2.

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The pharmacological activity of SU11274 is primarily due to its inhibition of hepotocyte growth factor receptor (c-Met) kinase overexpression. In this study, we demonstrated that the pathway involved in SU11274-induced autophagy was presumably through inhibition of c-Met and its down-stream pathways, including phosphatidylinositol 3-kinases – Akt (PI3K–Akt) and the growth factor receptor bound protein-2 / son of sevenless – Ras – p38 MAPK (Grb2/SOS–Ras–p38) pathway. SU11274 time-dependently induced the generation of superoxide anion (O2(•−)) and hydrogen peroxide (H2O2).

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The aim of our study is to investigate the relationship between lymphatic vessel density (LVD) marked by D2-40 and E-cadherin expression and the clinicopathological characteristics of patients with non-small-cell lung cancer (NSCLC). Immunohistochemical analysis was used to detect the expression of D2-40 and E-cadherin in 46 archival surgical specimens of human NSCLC and 10 cases of benign pulmonary disease. The LVD positively stained with D2-40 was observed and counted.

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SU11274, a small molecule inhibitor of c-Met, was reported to induce apoptosis in human non-small-cell lung cancer (NSCLC) cells. However, SU11274-mediated autophagy in NSCLC cells has rarely been reported. The aim of this study was to elucidate the molecular mechanisms mediating SU11274-induced autophagy in NSCLC A549 cells.

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