Publications by authors named "Shiyun Pu"

Article Synopsis
  • Polyorchidism is a rare birth condition where a male has more than two testicles, which can negatively affect fertility.
  • A case study of a 34-year-old man with this condition revealed severe issues with sperm quality, even though his hormone levels were normal and no genetic problems were found.
  • The findings stress the complex link between polyorchidism and male infertility, indicating the need for tailored treatment approaches and more research into its causes and effects.
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Male hypogonadism can seriously affect male health and fertility, yet comprehensive bibliometric and visualization analyses of research in this area have been lacking. This study aimed to examine the distribution of literature, identify research hotspots, and discern development trends in male hypogonadism by analyzing 4026 English documents published between 2000 and 2023 using bibliometric and visual analyses. The results indicated a significant increase in publications and citations related to male hypogonadism over the past two decades, with the United States, the University of Florence, Maggi M, and the Journal of Clinical Endocrinology & Metabolism recognized as the most productive and highly cited country, institution, author, and journal, respectively.

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Aims: Montelukast is an antagonist of cysteinyl leukotriene receptor 1 (CysLTR1) that protects against inflammation and oxidative stress. However, the function of montelukast in liver fibrosis remains unknown. In this study, we examined whether the pharmacological inhibition of CysLTR1 could protect mice against hepatic fibrosis.

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The protein Klotho can significantly delay aging, so it has attracted widespread attention. Abnormal downregulation of Klotho has been detected in several aging-related diseases, such as Alzheimer's disease, kidney injury, cancer, chronic obstructive pulmonary disease (COPD), vascular disease, muscular dystrophy and diabetes. Conversely, many exogenous and endogenous factors, several drugs, lifestyle changes and genetic manipulations were reported to exert therapeutic effects through increasing Klotho expression.

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: Hepatic stellate cells (HSCs) are essential for physiological homeostasis of the liver extracellular matrix (ECM). Excessive transdifferentiation of HSC from a quiescent to an activated phenotype contributes to disrupt this balance and can lead to liver fibrosis. Accumulating evidence has suggested that nuclear receptors (NRs) are involved in the regulation of HSC activation, proliferation, and function.

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Activating beige adipocytes in white adipose tissue (WAT) to increase energy expenditure is a promising strategy to combat obesity. We identified that mesencephalic astrocyte-derived neurotrophic factor (Manf) is a feeding-induced hepatokine. Liver-specific Manf overexpression protected mice against high-fat diet-induced obesity and promoted browning of inguinal subcutaneous WAT (iWAT).

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Activation of hepatic stellate cells (HSC) is a central driver of liver fibrosis. 5-lipoxygenase (5-LO) is the key enzyme that catalyzes arachidonic acid into leukotrienes. In this study, we examined the role of 5-LO in HSC activation and liver fibrosis.

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Background And Purpose: Inhibition of the sodium-glucose cotransporter 2 (SGLT2) induces hypoglycaemia by increasing urinary glucose excretion and increasing the use of fat. However, the underlying mechanism is poorly understood. This study was aimed to determine the effects of canagliflozin, a selective SGLT2 inhibitor, on diet-induced obesity and the underlying mechanism(s).

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Depression is a common aspect of the modern lifestyle, and most patients are recalcitrant to the current antidepressants. Fingolimod (FTY720), a sphingosine analogue approved for the treatment of multiple sclerosis, has a significant neuroprotective effect on the central nervous system. The aim of this study was to determine the potential therapeutic effect of FTY720 on the behavior and cognitive function of rats exposed daily to chronic unpredictable mild stress (CUMS), and elucidate the underlying mechanisms.

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Unlabelled: The diabetes medication canagliflozin (Cana) is a sodium glucose cotransporter 2 (SGLT2) inhibitor acting by increasing urinary glucose excretion and thus reducing hyperglycaemia. Cana treatment also reduces body weight. However, it remains unclear whether Cana could directly work on adipose tissue.

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Objective: Sirt6 is an essential regulator of energy metabolism in multiple peripheral tissues. However, the direct role of Sirt6 in the hypothalamus, specifically pro-opiomelanocortin (POMC) neurons, controlling energy balance has not been established. Here, we aimed to determine the role of Sirt6 in hypothalamic POMC neurons in the regulation of energy balance and the underlying mechanisms.

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Acetaminophen (APAP) is a widely used over-the-counter antipyretic and analgesic drug. Overdose of APAP is the leading cause of hospital admission for acute liver failure. Montelukast is an antagonist of cysteinyl leukotriene receptor 1 (Cysltr1), which protects from inflammation and oxidative stress.

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SKLB023, a novel 5-benzylidenethiazolidine-2,4-dione based-derivative, specifically inhibits inducible nitric oxide synthase and shows promise for treating non-alcoholic steatohepatitis (NASH). However, its poor water solubility and low bioavailability limits its clinical use. Here the drug was loaded into phosphatidylcholine-bile salt-mixed micelles (PBMM/SKLB023) to overcome these limitations.

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Objective: The aim of this study was to investigate whether the nuclear receptor farnesoid X receptor (FXR) could regulate FNDC5/Irisin expression and the role of Irisin in hyperlipidemia and atherosclerosis in ApoE-/- mice.

Methods And Results: We treated primary human hepatocytes, HepG2 cells, and Rhesus macaques with FXR agonist (CDCA, GW4064, and ivermectin). FNDC5 expression was highly induced by CDCA and GW4064 in hepatocytes, HepG2 cells, and the circulating level of Irisin increased in Rhesus macaques.

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Activation of hepatic stellate cells (HSCs) contributes to the development of liver fibrosis. Because of a relatively small population of HSCs in the liver and the lack of specific membrane targeting proteins, HSC-targeted therapy remains a major clinical challenge. Here we first showed that a hallmark of activated HSC (aHSC) is their increased expression of integrin αvβ3.

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Sirtuin 6 (Sirt6) is an NAD+-dependent deacetylase that regulates central metabolic functions such as glucose homeostasis, fat metabolism, and cell apoptosis. However, the tissue-specific function of Sirt6 in liver regeneration remains unknown. Here, we show that liver-specific Sirt6 knockout (Sirt6LKO) impaired liver reconstitution after 2/3 partial hepatectomy, which was attributed to an alteration of cell cycle progression.

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Sirt6 is an NADH (NAD)-dependent deacetylase with a critical role in hepatic lipid metabolism. Ketogenesis is controlled by a signaling network of hepatic lipid metabolism. However, how Sirt6 functions in ketogenesis remains unclear.

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Nonalcoholic steatohepatitis (NASH)-related liver fibrosis has been suggested to be a physiological consequence of chronic hepatic injury, necrosis, inflammation and unbalanced intrahepatic lipid metabolism. Accumulated evidence demonstrates that inducible nitric oxide synthase (iNOS) is highly expressed in advanced liver fibrosis, and the knockout of iNOS inhibits the progression of hepatic fibrosis. In our previous study, ()--(3-chlorophenyl)-2-(4-((2,4-dioxothiazolidin-5-ylidene)methyl)phenoxy)acetamide (SKLB023), a novel small-molecule inhibitor of iNOS, blocked joint inflammation and cartilage destruction in arthritis.

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Cholesterol gallstone disease (CGD) is one of the most common gastrointestinal diseases. Lithogenic hepatic bile secretion precedes the formation of cholesterol gallstones. Constitutive androstane receptor (CAR), a member of nuclear family, plays an important role in cholesterol and bile acid metabolism.

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Sirt6 is an NAD-dependent deacetylase that is involved in the control of energy metabolism. However, the tissue-specific function of Sirt6 in the adipose tissue remains unknown. In this study, we showed that fat-specific Sirt6 knockout (FKO) sensitized mice to high-fat diet-induced obesity, which was attributed to adipocyte hypertrophy rather than adipocyte hyperplasia.

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Aim: The present study aimed to assess the prevalence of potentially inappropriate medications (PIM) use in West China Hospital residents aged ≥65 years, using two sets of criteria - the Beers and Screening Tool of Older Persons' Prescriptions (STOPP) criteria - and to compare the Beers and STOPP criteria, and to determine the better criteria for assessing PIM of older adults in China.

Methods: This was a retrospective cross-sectional study, and all patients were aged ≥65 years and admitted through the Information Center of West China Hospital from October 2010 to April 2013. The Beers and STOPP criteria were used to identify PIM.

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This study examined the ability of amphiphilic poly(ethylene glycol) (PEG) derivatives to assemble into micelles for drug delivery. Linear PEG chains were modified on one end with hydrophobic vitamin E succinate (VES), and PEG and VES were mixed in different molar ratios to make amphiphiles, which were characterized in terms of critical micelle concentration (CMC), drug loading capacity (DLC), serum stability, tumor spheroid penetration and tumor targeting in vitro and in vivo. The amphiphile PEG5K-VES6 (PAMV6), which has a wheat-like structure, showed a CMC of 3.

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Irisin, a hormone proteolytically processed from fibronectin type III domain-containing protein 5 (FNDC5), has been reported to induce the browning of sc adipocytes by increasing the level of uncoupling protein 1. In this study, we showed that activation of the nuclear receptor constitutive androstane receptor induced FNDC5 mRNA expression in the liver and increased the circulating level of irisin in mice. FNDC5/irisin is a direct transcriptional target of constitutive androstane receptor.

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