Cardiomyocyte-specific overexpression of FPN1 diminishes cardiac hypertrophy induced by chronic intermittent hypoxia.

The significance of iron in myocardial mitochondria function cannot be underestimated, because deviations in iron levels within cardiomyocytes may have profound detrimental effects on cardiac function. In this study, we investigated the effects of ferroportin 1 (FPN1) on cardiac iron levels and pathological alterations in mice subjected to chronic intermittent hypoxia (CIH). The cTNT-FPN1 plasmid was administered via tail vein injection to induce the mouse with FPN1 overexpression in the cardiomyocytes.

Rosmarinic acid liposomes suppress ferroptosis in ischemic brain via inhibition of TfR1 in BMECs.

Background: Iron deposition and ferroptosis are involved in ischemic stroke injury, but the choice of drugs for treatment is limited.

Purpose: To investigate the potential neuroprotective effects of Rosmarinic acid (RosA) encapsulated within nanoliposomes (RosA-LIP) on ischemic stroke.

Methods: Wild-type (WT) and TfR1 cKO (specific knockout of the TfR1 gene in BMECs) mice used to establish a dMCAO model, with simultaneous administration of RosA-LIP (20 mg/kg/d, i.

Rosmarinic Acid Liposomes Downregulate Hepcidin Expression via BMP6-SMAD1/5/8 Pathway in Mice with Iron Overload.

The objective of this study is to examine the potential protective effect of rosmarinic acid (RosA) encapsulated within nanoliposomes (RosA-LIP) on hepatic damage induced by iron overload. The characteristics, stability, and release of RosA-LIP in vitro were identified. The mice were randomly assigned to five groups: Control, Model, Model+DFO (DFO), Model+RosA (RosA), and Model+RosA-LIP (RosA-LIP).

Banxia-Houpu decoction inhibits iron overload and chronic intermittent hypoxia-induced neuroinflammation in mice.

Ethnopharmacological Relevance: The Banxia-Houpu decoction (BHD), a renowned prescription documented in the Chinese medical book "The Synopsis of the Golden Chamber," has been proven to effectively mitigate inflammation within the central nervous system. Previous studies have demonstrated the efficacy of BHD in ameliorating symptoms in patients with obstructive sleep apnea (OSA). Nevertheless, the precise mechanisms and comprehensive effects of BHD on central system injury in OSA models have not been fully investigated.

[Hemoglobin C Variant Affecting Glycated Hemoglobin Test Results: A Rare Case Report].

Hemoglobin (Hb) variants are common factors that affect the results of glycosylated hemoglobin (A1C) tests. Hemoglobin variants react differently to different testing methods. Herein, we presented the first ever report of the effect of hemoglobin C (Hb C) on the test results of A1C in the Chinese population.

Anterior wall adenocarcinoma of bladder with similar clinicopathological and prognostic characteristics as common bladder carcinomas should not be treated as or classified into urachal adenocarcinomas.

Purpose: To discuss whether the dome or anterior wall of bladder adenocarcinoma (BAC) should be classified into urachal carcinoma (UrC) and the relationship of primary tumor location (PTL) as well as treatment with survival.

Methods: Surveillance, Epidemiology, and End Results 18 database was examined for eligible patients from 1975 to 2016. Patients were classified into adenocarcinoma originating from the urachus (UAC), the dome (D-BAC), the anterior wall (A-BAC), and the other sites adenocarcinoma of the bladder (O-BAC).

Prognostic Values of Radiosensitivity Genes and CD19 Status in Gastric Cancer: A Retrospective Study Using TCGA Database.

Background: The correlation between the radiosensitivity genes combined with CD19 status and clinical outcome was investigated to identify gastric cancer (GC) patients who would benefit from radiotherapy combined with CAR-T cell therapy.

Methods: The gene expression and clinical features were downloaded from The Cancer Genome Atlas (TCGA) Stomach Cancer (STAD). To identify the hub radiosensitivity genes and CD19 status, 407 patients were categorized into two groups: radiosensitivity (RS) and radioresistance (RR) based on the prognosis.

New species of the tribe Meconematini (Orthoptera: Tettigoniidae: Meconematinae: Meconematini) from Sichuan, China.

Two new species of the subfamily Meconematinae are described, i.e. Neocyrtopsis (Neocyrtopsis) shimianensis Wang Shi, sp.

Myeloid / KO attenuates pro-inflammatory responses in macrophages and protects against atherosclerosis in a model of advanced lesions.

Cholesterol esters are a key ingredient of foamy cells in atherosclerotic lesions; their formation is catalyzed by two enzymes: acyl-CoA:cholesterol acyltransferases (ACATs; also called sterol acyltransferases, or SOATs) ACAT1 and ACAT2. ACAT1 is present in all body cells and is the major isoenzyme in macrophages. Whether blocking ACAT1 benefits atherosclerosis has been under debate for more than a decade.

Gpnmb secreted from liver promotes lipogenesis in white adipose tissue and aggravates obesity and insulin resistance.

Metabolism in mammals is regulated by complex interplay among different organs. Fatty acid synthesis is increased in white adipose tissue (WAT) when it is inhibited in the liver. Here we identify glycoprotein non-metastatic melanoma protein B (Gpnmb) as one liver-WAT cross-talk factor involved in lipogenesis.

[Effect of Nifuroxazide on Proliferation, Migration, and Invasion of Thyroid Papillary Carcinoma Cells].

Objective: To explore the effect of nifuroxazide on proliferation, migration, and invasion of thyroid papillary carcinoma cells.

Methods: BCPAP and TPC-1 cell lines treated with different concentration (0, 1.25, 2.

A variant promotes low plasma LDL cholesterol and decreases intestinal cholesterol absorption.

A high concentration of low-density lipoprotein cholesterol (LDL-C) is a major risk factor for cardiovascular disease. Although LDL-C levels vary among humans and are heritable, the genetic factors affecting LDL-C are not fully characterized. We identified a rare frameshift variant in the (also known as or ) gene from a Chinese family of Kazakh ethnicity with inherited low LDL-C and reduced cholesterol absorption.

Corrigendum: Cholesterol and fatty acids regulate cysteine ubiquitylation of ACAT2 through competitive oxidation.

This corrects the article DOI: 10.1038/ncb3551.

The GARP Complex Is Involved in Intracellular Cholesterol Transport via Targeting NPC2 to Lysosomes.

Proper intracellular cholesterol trafficking is critical for cellular function. Two lysosome-resident proteins, NPC1 and NPC2, mediate the egress of low-density lipoprotein-derived cholesterol from lysosomes. However, other proteins involved in this process remain largely unknown.

[The Preliminary Investigation of GLP-1 Receptor Agonist on Liver Steatosis in Obese Mice].

Objectives: To investigate the effects of glucagon-like peptide-1 (GLP-1) receptor agonist, exenatide, on liver function and steatosis in obese mice.

Methods: Male c57BL/6J mice (8 weeks old) were divided into high-fat-diet group (for obesity model construction) and chow diet group. 12 weeks later, mice of high-fat diet group were randomly divided into high-dose exenatide group [H group, intraperitoneal injection 0.

[Preliminary Study on the Wnt5a Expression in Obese Mice with Hepatocellular Carcinoma].

Objectives: To investigate the Wnt5a expression in obese mice with hepatocellular carcinoma.

Methods: Two groups of 6-week C57BL/6J mice were fed with chow-diet and high-fat-diet for 8 weeks respectively, to establish obesity model in the latter group. Mice in Hepal-6 group (including normal-body mass mice and obese mice) were injected with Hepa1-6 hepatocarcinoma cell lines through caudal vein, while the controls were given NS.

[Serum Wnt5a and Its Associations with Liver Steatosis and Fibrosis in Overweight and Obese People].

Objectives: To determine serum Wnt5a and its associations with liver steatosis and fibrosis in overweight and obese people.

Methods: The study participants were recruited from those who visited our hospital for health examinations. They were divided into three groups according to body mass index (BMI), controlled attenuation parameter (CAP)values and elasticity (E) values of liver fibroscan: Control ( =27), Mild NAFLD (non-alcoholic fatty liver disease, =51) and Moderate/severe NAFLD ( =56).

Cholesterol and fatty acids regulate cysteine ubiquitylation of ACAT2 through competitive oxidation.

Ubiquitin linkage to cysteine is an unconventional modification targeting protein for degradation. However, the physiological regulation of cysteine ubiquitylation is still mysterious. Here we found that ACAT2, a cellular enzyme converting cholesterol and fatty acid to cholesteryl esters, was ubiquitylated on Cys277 for degradation when the lipid level was low.

Cholesterol Modification of Smoothened Is Required for Hedgehog Signaling.

Hedgehog (Hh) has been known as the only cholesterol-modified morphogen playing pivotal roles in development and tumorigenesis. A major unsolved question is how Hh signaling regulates the activity of Smoothened (SMO). Here, we performed an unbiased biochemical screen and identified that SMO was covalently modified by cholesterol on the Asp95 (D95) residue through an ester bond.

AAV9-NPC1 significantly ameliorates Purkinje cell death and behavioral abnormalities in mouse NPC disease.

Niemann-Pick type C (NPC) disease is a fatal inherited neurodegenerative disorder caused by loss-of-function mutations in the or gene. There is no effective way to treat NPC disease. In this study, we used adeno-associated virus (AAV) serotype 9 (AAV9) to deliver a functional gene systemically into mice at postnatal day 4.

Inhibition of the sterol regulatory element-binding protein pathway suppresses hepatocellular carcinoma by repressing inflammation in mice.

Unlabelled: Obesity is a critical risk factor for hepatocellular carcinoma (HCC). However, it remains unknown whether inhibition of de novo lipid biosynthesis can suppress HCC. In this study, we blocked the sterol regulatory element-binding protein (SREBP) pathway, one of the key determinants of lipid homeostasis, by ablating 78-kDa cell-surface glycoprotein or SREBP cleavage-activating protein in hepatocytes, as well as by administering a chemical compound called betulin.

Identification and characterization of NPC1L1 variants in Uygur and Kazakh with extreme low-density lipoprotein cholesterol.

Background: Plasma levels of low-density lipoprotein cholesterol (LDL-C) are a major risk factor for cardiovascular disease and are influenced by both heredity and dietary habits. The Niemann-Pick C1 like 1 (NPC1L1) protein mediates efficient dietary cholesterol absorption and contributes to variations in human LDL-C levels.

Methods: In the present study, using high throughput sequencing we identified three non-synonymous (NS) variations and 64 synonymous variations in the NPC1L1 gene from subsets of Chinese Han, Uygur and Kazakh populations with high or low LDL-C.