Publications by authors named "Miaomiao Qi"

Aims: We aimed to investigate the role of Rnf40 in hypertension-induced cerebrovascular endothelial barrier dysfunction and cognitive impairment.

Methods: We employed microarray data analysis and integrated bioinformatics databases to identify a novel E3 ligase, Rnf40, that targets Parkin. To understand the role of RNF40 in hypertension-induced cerebrovascular endothelial cell damage, we used pAAV-hFLT1-MCS-EGFP-3×Flag-mir30shRnf40 to establish an Rnf40-deficient model in spontaneously hypertensive rats (SHRs).

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Glacier surges, a primary factor contributing to various glacial hazards, has long captivated the attention of the global glaciological community. This study delves into the dynamics of Kyagar Glacier surging and the associated drainage features of its Ice-dammed lake, employing high temporal resolution optical imagery. Our findings indicate that the surge on Kyagar Glacier began in late spring and early summer of 2014 and concluded during the summer of 2016.

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Article Synopsis
  • * Teadenol B significantly inhibits the growth of all four breast cancer cell subtypes, particularly showing a strong effect on MDA-MB-231 cells, known for their poor clinical outcomes, by reducing deoxycytidine triphosphate deaminase (DCTD), important for DNA synthesis and repair.
  • * The compound also promotes autophagy by increasing the conversion of LC3-I to LC3-II, suggesting a mechanism behind its anti-cancer effects and indicating potential for teadenol B as both a preventive
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Hypertension is one of the main adverse effects of antiangiogenic tumor drugs and thus limits their application. The mechanism of hypertension caused by tyrosine kinase inhibitors (TKIs) targeting vascular endothelial growth factors is mainly related to inhibition of the nitric oxide (NO) pathway and activation of the endothelin pathway, as well as vascular rarefaction and increased salt sensitivity; consequently, prevention and treatment differ for this type of hypertension compared with primary hypertension. Apatinib is a highly selective TKI approved in China for the treatment of advanced or metastatic gastric cancer.

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Vascular smooth muscle cells (VSMCs) are associated with differentiated, organized, and contractile phenotype under the effect of various types of physiological conditions those are associated with migratory, proliferative, and synthetic phenotype under the effect of various types of stimuli, which dysfunction drives many cardiovascular diseases. Abnormal cell proliferation and invasion of VSMCs are among the primary causes of hypertension. Apatinib is a small-molecule tyrosine kinase inhibitor (TKI) that highly selectively binds to and strongly inhibits VEGFR-2.

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Background: Glucose fluctuations may be associated with myocardial fibrosis. This study aimed to investigate the underlying mechanisms of glucose fluctuation-related myocardial fibrosis.

Methods: Streptozotocin (STZ)-injected type 1 diabetic rats were randomized to five groups: the controlled blood glucose (CBG) group, uncontrolled blood glucose (UBG) group, fluctuated blood glucose (FBG) group, FBG rats injected with 0.

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Cardiac fibrosis is a key feature of hypertensive cardiac remodeling. In response to microenvironmental stimuli, phenotypic and functional changes in macrophages are considered important determinants of cardiac fibrosis attenuation. VO-OHpic, a phosphatase and tension homolog of chromosome 10 (PTEN) inhibitor, has been demonstrated to be cardioprotective in cardiac remodeling.

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Female sexual dysfunction is common in hypertension. The effects of sacubitril/valsartan (SAC/VAL) as a potential therapy for hypertension and heart failure have not been studied in relation to sexual function and genital fibrosis in female spontaneously hypertensive rats (SHRs). Thirty female SHRs were administered VAL, SAC/VAL, or saline.

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Background: Polycystic ovary syndrome (PCOS) is a heterogeneous condition that affects women of reproductive age. The association between PCOS and cardiovascular risk according to body mass index (BMI) categories is unclear.

Objective: We evaluated the association between cardiovascular risk according to BMI categories and PCOS in women of reproductive age.

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Hepatitis B virus (HBV) co-infection is fairly common in people living with HIV (PLWH) and affects millions of people worldwide. Identical transmission routes and HIV-induced immune suppression have been assumed to be the main factors contributing to this phenomenon. Moreover, convergent evidence has shown that people co-infected with HIV and HBV are more likely to have long-term serious medical problems, suffer more from liver-related diseases, and have higher mortality rates, compared to individuals infected exclusively by either HIV or HBV.

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G protein-coupled estrogen receptor 1 (GPER1) is a potential therapeutic target for treating triple-negative breast cancers (TNBC). However, modulators for GPER1 that can be used to treat TNBC have not appeared. Berberine (BBR) is a bioactive isoquinoline alkaloid with high oral safety.

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Objective: The purpose of this investigation aimed to clarify the impact of peripheral artery disease (PAD) on the prognosis value of patients with stable coronary artery disease (CAD) who underwent percutaneous coronary intervention (PCI).

Methods: The SPSS 16 software was used for secondary analysis of DRYAD database data. A total of 204 patients were enrolled from Shinonoi General Hospital for newly diagnosed stable CAD and received PCI performance between October 2014 and October 2017.

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Water resources are under severe stress in the highly populated Indus River Basin due to the increased consumption of water across different sectors and climate change. Coping with these challenges, requires a clear understanding on hydrological processes and anthropogenic activities, and how these are influencing recharging and spatiotemporal availability of groundwater in the basin. The present study aims to investigate the natural and anthropogenic impact on Terrestrial Water Storage (TWS) over the Indus River Basin by using a series of statistical methods and the observation data from the Gravity Recovery and Climate Experiment (GRACE) and Follow-On (GRACE-FO).

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A bioassay-guided fractionation led to the isolation of hangtaimycin (HTM) from Streptomyces spectabilis CCTCC M2017417 and the discovery of its hepatoprotective properties. Structure elucidation by NMR suggested the need for a structural revision. A putative HTM degradation product was also isolated and its structure was confirmed by total synthesis.

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Atrial fibrillation (AF) is the most prevalent cardiac arrhythmia in the world. Although much technological progress in the treatment of AF has been made, there is an urgent need for better treatment of AF due to its high rates of morbidity and mortality. The anti-arrhythmic drugs currently approved for marketing have significant limitations and side effects such as life-threatening ventricular arrhythmias and hypotension.

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To determine the efficacy of acupuncture on the management of hormone therapy-related side effects in breast cancer patients. Randomized controlled trials of acupuncture versus a control or placebo in breast cancer patients that examined reductions in therapy-related side effects were retrieved from PubMed, EMBASE, Web of Science, and the Cochrane Library through April 2020. Data on patient symptoms (hot flashes, fatigue, pain, stiffness, and gastrointestinal symptoms), physical capacity, cytokines, and general psychosomatic well-being were analyzed.

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Accumulating evidence indicates the occurrence and development of diabetic complications relates to not only constant high plasma glucose, but also glucose fluctuations which affect various kinds of molecular mechanisms in various target cells and tissues. In this review, we detail reactive oxygen species and their potentially damaging effects upon glucose fluctuations and resultant downstream regulation of protein signaling pathways, including protein kinase C, protein kinase B, nuclear factor-κB, and the mitogen-activated protein kinase signaling pathway. A deeper understanding of glucose-fluctuation-related molecular mechanisms in the development of diabetic complications may enable more potential target therapies in future.

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Silver nanowires (Ag NWs) are key materials to fabricate next-generation flexible transparent electrodes (FTEs). Currently, the applications of Ag NWs are impeded by the large wire-wire contact resistance. Herein, a self-limited nanosoldering method is proposed to reduce the contact resistance by epitaxially depositing silver nanosolders at the Ag NW junctions, which have a negligible effect on the optical transparency, while decreasing the sheet resistance of the Ag NW film from 18.

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Objectives: This study aimed to explore the effects of astragaloside IV on metabolic syndrome induced by a high-fructose/high-fat diet in rats.

Methods: Rats were randomized into four groups: normal control, metabolic syndrome, metabolic syndrome + intraperitoneal astragaloside 0.5 mg/kg/day, and metabolic syndrome + intraperitoneal astragaloside 2.

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Article Synopsis
  • Macroautophagy is essential for maintaining cell quality and homeostasis, and its regulation is crucial, especially in the context of diseases like breast cancer.
  • Research suggests that estrogen, particularly 17β-estradiol (E2), affects autophagy, but findings have been inconsistent, complicating our understanding of its role in estrogen-related cancers.
  • This review explores how estrogen influences autophagy through various mechanisms, including estrogen receptors and transcription factors, and proposes a model to help clarify these interactions and their implications for new therapeutic approaches.
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Article Synopsis
  • Stress cardiomyopathy can present with unusual symptoms, such as neurological issues, as shown in a case where a young man experienced a large cerebral infarction instead of typical heart-related symptoms.
  • A 28-year-old man developed sudden right limb weakness and unconsciousness after heavy alcohol consumption, leading to his diagnosis following imaging that revealed occlusions and a thrombus in the heart.
  • Treatment included various therapies to address both the neurological and cardiac issues, resulting in significant improvements over 12 days, highlighting the need for awareness and understanding of stress cardiomyopathy's diverse presentations.
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