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1.
Mol Nutr Food Res ; : e2300927, 2024 Jun 27.
Article in English | MEDLINE | ID: mdl-38937862

ABSTRACT

SCOPE: While probiotics-based therapies have exhibited potential in alleviating alcohol-associated liver disease (ALD), the specific role of postbiotics derived from Lactobacillus reuteri (L. reuteri) in ALD remains elusive. This study aims to investigate the impact of postbiotics on ameliorating alcohol-induced hepatic steatosis and the underlying mechanisms. METHODS AND RESULTS: Using network pharmacology, the study elucidates the targets and pathways impacted by postbiotics from L. reuteri, identifying the farnesoid X receptor (FXR) as a promising target for postbiotics against ALD, and lipid metabolism and alcoholism act as crucial pathways associated with postbiotics-targeting ALD. Furthermore, the study conducts histological and biochemical analyses coupled with LC/MS to evaluate the protective effects and mechanisms of postbiotics against ALD. Postbiotics may modulate bile acid metabolism in vivo by regulating FXR signaling, activating the FXR/FGF15 pathway, and influencing the enterohepatic circulation of bile acids (BAs). Subsequently, postbiotics regulate hepatic FXR activated by BAs and modulate the expression of FXR-mediated protein, including short regulatory partner (SHP) and sterol regulatory element binding protein-1c (SREBP-1c), thereby ameliorating hepatic steatosis in mice with ALD. CONCLUSION: Postbiotics effectively alleviate ethanol-induced hepatic steatosis by regulating the FXR/SHP/SREBP-1c axis, as rigorously validated in both in vivo and in vitro.

2.
J Res Adolesc ; 2024 May 08.
Article in English | MEDLINE | ID: mdl-38717122

ABSTRACT

In past decades, the positive role of self-control in students' academic success has attracted plenty of scholarly attention. However, fewer studies have examined the link between adolescents' neural development of the inhibitory control system and their academic achievement, especially using a longitudinal approach. Moreover, less is known about the role of parents in this link. Using large-scale longitudinal data from the Adolescent Brain Cognitive Development (ABCD) study (N = 9574; mean age = 9.94 years at baseline, SD = .63; 50% girls), the current study took an integrative biopsychosocial approach to explore the longitudinal link between early adolescents' fronto-striatal connectivity and their academic achievement, with attention to the moderating role of parental warmth. Results showed that weaker intrinsic connectivity between the frontoparietal network and the striatum was associated with early adolescents' worse academic achievement over 2 years during early adolescence. Notably, parental warmth moderated the association between fronto-striatal connectivity and academic achievement, such that weaker fronto-striatal connectivity was only predictive of worse academic achievement among early adolescents who experienced low levels of parental warmth. Taken together, the findings demonstrate weaker fronto-striatal connectivity as a risk factor for early adolescents' academic development and highlight parental warmth as a protective factor for academic development among those with weaker connectivity within the inhibitory control system.

3.
Dev Cogn Neurosci ; 67: 101380, 2024 Jun.
Article in English | MEDLINE | ID: mdl-38626612

ABSTRACT

Research on social determinants of health has highlighted the influence of neighborhood characteristics (e.g., neighborhood safety) on adolescents' health. However, it is less clear how changes in neighborhood environments play a role in adolescent development, and who are more sensitive to such changes. Utilizing the first three waves of data from the Adolescent Brain Cognitive Development (ABCD) project (N = 7932, M (SD) age = 9.93 (.63) years at T1; 51% boys), the present study found that increases in neighborhood safety were associated with decreased adolescent externalizing symptoms, internalizing symptoms, but not sleep disturbance over time, controlling for baseline neighborhood safety. Further, adolescents' insula and anterior cingulate cortex (ACC) reactivity to positive emotional stimuli moderated the association between changes in neighborhood safety and adolescent adjustment. Among youth who showed higher, but not lower, insula and ACC reactivity to positive emotion, increases in neighborhood safety were linked with better adjustment. The current study contributes to the differential susceptibility literature by identifying affective neural sensitivity as a marker of youth's susceptibility to changes in neighborhood environment. The findings highlight the importance of neighborhood safety for youth during the transition to adolescence, particularly for those with heightened affective neural sensitivity.


Subject(s)
Adolescent Development , Safety , Humans , Male , Female , Adolescent , Child , Longitudinal Studies , Adolescent Development/physiology , Cerebral Cortex/physiology , Gyrus Cinguli/physiology , Affect/physiology , Magnetic Resonance Imaging , Residence Characteristics , Neighborhood Characteristics , Adolescent Behavior/physiology
4.
J Nutr Educ Behav ; 56(4): 219-229, 2024 04.
Article in English | MEDLINE | ID: mdl-38402478

ABSTRACT

OBJECTIVE: Identify and describe diet patterns of children during early childhood using confirmatory factor analysis (CFA). DESIGN: Longitudinal data were drawn from the STRONG Kids 2 program. PARTICIPANTS: Mothers were surveyed about their child's diet at 24 (n = 337), 36 (n = 317), and 48 (n = 289) months old. VARIABLES MEASURED: The Block Food Frequency Questionnaire for children aged 2-7 years was used to derive diet patterns; 23 food groups were created for analyses. ANALYSIS: Principal component analysis was used to obtain preliminary factor loadings, and loadings were used to form a priori hypotheses for CFA-derived diet patterns. Independent samples t tests were used to compare food groups, nutrient intakes, and child and family characteristics by CFA pattern scores above vs at/below the median. RESULTS: Three diet patterns consistently emerged: (1) processed meats, sweets, and fried foods; (2) vegetables, legumes, and starchy vegetables; and (3) grains, nuts/seeds, and condiments (only 24 and 36 months). Patterns were related to differences in added sugars, dietary fiber and potassium intakes, maternal education, and household income. CONCLUSIONS AND IMPLICATIONS: Opposing healthful vs Western patterns, extant in child and adult literature, were observed across all ages. The third pattern differed between 24/36 and 48 months, representing a potential shift in food choices or offerings as children age.


Subject(s)
Fabaceae , Fruit , Adult , Child , Female , Humans , Child, Preschool , Diet , Vegetables , Mothers , Feeding Behavior
5.
J Agric Food Chem ; 71(49): 19475-19487, 2023 Dec 13.
Article in English | MEDLINE | ID: mdl-38038700

ABSTRACT

Liver fibrosis refers to the excessive buildup of extracellular matrix (ECM) components in liver tissue. It is considered a pathological response to liver damage for which there is no effective treatment. Aloin, an anthraquinone compound isolated from the aloe plant, has shown good pharmacological effects in the treatment of gastric cancer, ulcerative colitis, myocardial hypertrophy, traumatic brain injury, and other diseases; however, its specific impact on liver fibrosis remains unclear. To address this gap, we conducted a study to explore the mechanisms underlying the potential antifibrotic effect of aloin. We constructed a mouse liver fibrosis model using carbon tetrachloride (CCl4) dissolved in olive oil as a modeling drug. Additionally, a cellular model was developed by using transforming growth factor ß1 (TGF-ß1) as a stimulus applied to hepatic stellate cells. After aloin intervention, serum alanine aminotransferase, hepatic hydroxyproline, and serum aspartate aminotransferase were reduced in mice after aloin intervention compared to CCl4-mediated liver injury without aloin intervention. Aloin relieved the oxidative stress caused by CCl4 via reducing hepatic malondialdehyde in liver tissue and increasing the level of superoxide dismutase. Aloin treatment decreased interleukin (IL)-1ß, IL-6, and tumor necrosis factor-α and increased the expression of IL-10, which inhibited the inflammatory response in liver injury. In addition, aloin inhibited the activation of hepatic stellate cells and reduced the level of α-smooth muscle actin (α-SMA) and collagen type I. In cell and animal experiments, aloin attenuated liver fibrosis, acting through the TGF-ß/Smad2/3 signaling pathway, and mitigated CCl4- and TGF-ß1-induced inflammation. Thus, the findings of this study provided theoretical data support and a new possible treatment strategy for liver fibrosis.


Subject(s)
Smad Proteins , Transforming Growth Factor beta1 , Mice , Animals , Transforming Growth Factor beta1/genetics , Transforming Growth Factor beta1/metabolism , Smad Proteins/genetics , Smad Proteins/metabolism , Smad Proteins/pharmacology , Liver Cirrhosis/chemically induced , Liver Cirrhosis/drug therapy , Liver Cirrhosis/genetics , Liver/metabolism , Inflammation/drug therapy , Inflammation/genetics , Inflammation/metabolism , Oxidative Stress , Disease Models, Animal , Carbon Tetrachloride/adverse effects , Carbon Tetrachloride/metabolism , Hepatic Stellate Cells
6.
Oncol Res ; 31(5): 805-817, 2023.
Article in English | MEDLINE | ID: mdl-37547758

ABSTRACT

Hepatocellular carcinoma (HCC) is a common malignancy that is driven by multiple genes and pathways. The aim of this study was to investigate the role and specific mechanism of the actin-interacting protein zyxin (ZYX) in HCC. We found that the expression of ZYX was significantly higher in HCC tissues compared to that in normal liver tissues. In addition, overexpression of ZYX in hepatoma cell lines (PLC/PRF/5, HCCLM3) enhanced their proliferation, migration and invasion, whereas ZYX knockdown had the opposite effects (SK HEP-1, Huh-7). Furthermore, the change in the expression levels of ZYX also altered that of proteins related to cell cycle, migration and invasion. Similar results were obtained with xenograft models. The AKT/mTOR signaling pathway is one of the key mediators of cancer development. While ZYX overexpression upregulated the levels of phosphorylated AKT/mTOR proteins, its knockdown had the opposite effect. In addition, the AKT inhibitor MK2206 neutralized the pro-oncogenic effects of ZYX on the HCC cells, whereas the AKT activator SC79 restored the proliferation, migration and invasion of HCC cells with ZYX knockdown. Taken together, ZYX promotes the malignant progression of HCC by activating AKT/mTOR signaling pathway, and is a potential therapeutic target in HCC.


Subject(s)
Carcinoma, Hepatocellular , Liver Neoplasms , Zyxin , Humans , Carcinoma, Hepatocellular/pathology , Cell Line, Tumor , Cell Movement/genetics , Cell Proliferation/genetics , Liver Neoplasms/pathology , Proto-Oncogene Proteins c-akt/metabolism , Signal Transduction/genetics , TOR Serine-Threonine Kinases/metabolism , Zyxin/metabolism
7.
Am J Physiol Cell Physiol ; 325(3): C780-C795, 2023 09 01.
Article in English | MEDLINE | ID: mdl-37575057

ABSTRACT

Inducible nitric oxide synthase (iNOS) and vascular endothelial dysfunction have been implicated in the development and progression of atherosclerosis. This study aimed to elucidate the role of iNOS in vascular endothelial dysfunction. Ultrahigh performance liquid chromatography-quadrupole time-of-flight mass spectrometry combined with multivariate data analysis was used to characterize the metabolic changes in human umbilical vein endothelial cells (HUVECs) in response to different treatment conditions. In addition, molecular biology techniques were employed to explain the molecular mechanisms underlying the role of iNOS in vascular endothelial dysfunction. Tumor necrosis factor-α (TNF-α) enhances the expression of iNOS, TXNIP, and the level of reactive oxygen species (ROS) facilitates the entry of nuclear factor-κB (NF-κB) into the nucleus and promotes injury in HUVECs. iNOS deficiency reversed the TNF-α-mediated pathological changes in HUVECs. Moreover, TNF-α increased the expression of tumor necrosis factor receptor-2 (TNFR-2) and the levels of p-IκBα and IL-6 proteins and CD31, ICAM-1, and VCAM-1 protein expression, which was significantly reduced in HUVECs with iNOS deficiency. In addition, treating HUVECs in the absence or presence of TNF-α or iNOS, respectively, enabled the identification of putative endogenous biomarkers associated with endothelial dysfunction. These biomarkers were involved in critical metabolic pathways, including glycosylphosphatidylinositol-anchor biosynthesis, amino acid metabolism, sphingolipid metabolism, and fatty acid metabolism. iNOS deficiency during vascular endothelial dysfunction may affect the expression of TNFR-2, vascular adhesion factors, and the level of ROS via cellular metabolic changes, thereby attenuating vascular endothelial dysfunction.NEW & NOTEWORTHY Inducible nitric oxide synthase (iNOS) deficiency during vascular endothelial dysfunction may affect the expression of tumor necrosis factor receptor-2 and vascular adhesion factors via cellular metabolic changes, thereby attenuating vascular endothelial dysfunction.


Subject(s)
NF-kappa B , Tumor Necrosis Factor-alpha , Humans , Tumor Necrosis Factor-alpha/pharmacology , Tumor Necrosis Factor-alpha/metabolism , Nitric Oxide Synthase Type II/genetics , Nitric Oxide Synthase Type II/metabolism , Reactive Oxygen Species/metabolism , NF-kappa B/metabolism , Human Umbilical Vein Endothelial Cells/metabolism , Vascular Cell Adhesion Molecule-1/genetics , Vascular Cell Adhesion Molecule-1/metabolism , Receptors, Tumor Necrosis Factor/metabolism , Nitric Oxide/metabolism
8.
J Dev Behav Pediatr ; 44(6): e421-e428, 2023 08 01.
Article in English | MEDLINE | ID: mdl-37276363

ABSTRACT

OBJECTIVES: The first objective of this study was to determine how mother-infant sleep duration is related across the first 2 years of life. The second objective was to determine whether these relationships change across the first 2 years of life. The third objective was to understand demographic and health predictors of the relationship between maternal and child sleep. METHODS: Parents of 464 infants from the STRONG Kids 2 study reported their own and infants' nocturnal sleep duration and other health information (i.e., breastfeeding) at 3, 12, 18, and 24 months postpartum. RESULTS: Latent transition models revealed 2 mother-infant sleep profiles exist at 3 to 24 months. The low maternal sleep ( LMS ) pattern was characterized by lower maternal sleep duration than the recommended amount and lower infant sleep duration. The average maternal sleep ( AMS ) pattern was characterized by average maternal sleep duration meeting the recommended standard and average infant sleep duration. Approximately half of the mothers who started in the LMS profile transitioned to the AMS profile after 12 months postpartum. The sleep profiles stabilized after 12 months postpartum with limited transitions across 12 to 24 months. More infant-signaled nighttime wakings, later bedtimes, more infant sleep problems, and more exclusive breastfeeding were predictors of being in the LMS profile. CONCLUSION: Mother-infant sleep profiles stabilized after age 12 months, and mother-infant sleep profiles are driven by infant sleep quality during the night. The findings suggest the need to establish a healthy sleep routine for mothers and infants in the first year of life to promote longer-term sleep hygiene.


Subject(s)
Breast Feeding , Sleep Duration , Female , Child , Infant , Humans , Mothers , Sleep , Parents
9.
Oncol Lett ; 25(6): 273, 2023 Jun.
Article in English | MEDLINE | ID: mdl-37216159

ABSTRACT

Previous retrospective studies have suggested that surufatinib is effective for treating advanced solid tumors; however, the efficacy and safety of this drug needs to be investigated further via high-quality evidence or randomized controlled trials. In the present study, a meta-analysis was carried out to evaluate the safety and effectiveness of surufatinib for patients with advanced solid tumors. Systematic, electronic literature searches were conducted using PubMed, EMBASE, Cochrane Library and ClinicalTrials.gov. The disease control rate (DCR) of surufatinib in solid tumors was 86% [effect size (ES), 0.86; 95% confidence interval (CI), 0.82-0.90; I2=34%; P=0.208] and the objective response rate was 16% (ES, 0.16; 95% CI, 0.12-0.21; I2=48%; P=0.103), while the progressive disease rate was only 9% (ES, 0.09; 95% CI, 0.05-0.15; I2=68%, P=0.014). Surufatinib showed different degrees of adverse reactions during the treatment of solid tumors. Among these adverse events, the incidence of increased levels of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) were 24% (ES, 0.24; 95% CI, 0.18-0.30; I2=45.1%; P=0.141) and 33% (ES, 0.33; 95%CI, 0.28-0.38; I2=63.9%; P=0.040), respectively. In the placebo-controlled trial, the relative risks (RRs) of elevated AST and ALT were 1.04 (95% CI, 0.54-2.02; I2=73.3%; P=0.053) and 0.84 (95% CI, 0.57-1.23; I2=0%; P=0.886), respectively. Overall, surufatinib was characterized by a high DCR and a low disease progression rate, thus indicating that it could exert a good therapeutic effect on solid tumors. Additionally, surufatinib showed a lower RR for adverse effects compared with other treatment modalities.

10.
Child Dev ; 94(2): 424-438, 2023 03.
Article in English | MEDLINE | ID: mdl-36308038

ABSTRACT

This study examined the role of social goals in shaping children's in vivo emotional responses during a challenging dyadic peer interaction. In all, 132 children (Mage  = 9.46 years, SD = 0.33; 50% girls; 72% White) participated in a dyadic social challenge (conflict-of-interest situation) and reported their social goals and emotions during the task, and observers coded child emotions and dyad negativity. Mastery goals predicted more positive emotions unless interactions were highly negative. Performance-avoidance goals predicted more negative emotions, particularly in the context of negative interactions and disappointing outcomes. Performance-approach goals predicted less negative displayed emotions but more negative self-reported emotions. Findings provide novel insights into how context-specific social goals contribute to affective social competence during peer interactions.


Subject(s)
Emotions , Goals , Female , Child , Humans , Male , Interpersonal Relations , Peer Group , Social Skills
11.
Phytother Res ; 37(1): 181-194, 2023 Jan.
Article in English | MEDLINE | ID: mdl-36097366

ABSTRACT

Hepatic ischemia-reperfusion injury (HIRI) is of common occurrence during liver surgery and transplantation. Pinocembrin (PIN) is a kind of flavonoid monomer extracted from the local traditional Chinese medicine Penthorum chinense Pursh (P. chinense). However, the effect of PIN on HIRI has not determined. We investigated the protective effect and potential mechanism of PIN against HIRI. Model mice were subjected to partial liver ischemia for 60 min, experimental mice were pretreated with PIN orally for 7 days, and H2 O2 -induced oxidative damage model in AML12 hepatic cells was established in vitro. Histopathologic analysis and serum biochemical levels revealed that PIN had hepatoprotective activities against HIRI. The variation of GSH, SOD, MDA, and ROS levels indicated that PIN treatments attenuated oxidative stress in tissue. PIN pretreatment obviously ameliorated apoptosis, and restrained the expression of HMGB1 and TLR4 in vivo. In vitro, compared with H2 O2 group, the contents of ROS, mitochondrial membrane potential, apoptotic cells, and Bcl-2 protein were decreased, while the Bax protein expression was increased. Moreover, HMGB-1 small interfering RNA test and western blotting showed that PIN pretreatment reduced HMGB1 and TLR4 protein levels. In conclusion, PIN pretreatment effectively protected hepatocytes from HIRI and inhibited the HMGB1/TLR4 signaling pathway.


Subject(s)
HMGB1 Protein , Reperfusion Injury , Mice , Animals , Reactive Oxygen Species/metabolism , Toll-Like Receptor 4/metabolism , Liver , Signal Transduction , Reperfusion Injury/drug therapy , Apoptosis
12.
Dev Psychobiol ; 64(8): e22338, 2022 12.
Article in English | MEDLINE | ID: mdl-36426783

ABSTRACT

Extending literature on youth coping and stress physiology, this two-wave longitudinal study examined independent and interactive roles of youth coping with daily stressors (i.e., peer, academic) and cardiac autonomic functioning in subsequent social and academic adjustment across the transition to middle school. Our sample consisted of 100 typically developing youth (10-12 years old at Time 1, 53 boys, 43% ethnic minorities) who reported on their coping strategies in response to peer and academic stress. Youth participated in laboratory tasks (i.e., baseline, mother-youth conversations about youth's actual peer and academic challenges) during which sympathetic and parasympathetic activities were recorded, and cardiac autonomic functioning indicators were derived. Youth, mothers, and teachers reported on various aspects of youths' social and academic adjustment at Times 1 and 2. Results revealed that, for both peer and academic domains, greater use of engagement coping strategies was prospectively linked with better adjustment 7 months later, but only among youth who exhibited higher (greater sympathetic-parasympathetic coactivation) but not lower (limited coactivation, or coinhibition) cardiac autonomic regulation at baseline. Findings suggest that a match between more engagement coping behaviors and greater cardiac autonomic capacity to coactivate the parasympathetic and sympathetic branches is linked with better social and academic adjustment.


Subject(s)
Adaptation, Psychological , Peer Group , Male , Adolescent , Humans , Child , Longitudinal Studies , Autonomic Nervous System , Schools
13.
J Agric Food Chem ; 70(39): 12550-12564, 2022 Oct 05.
Article in English | MEDLINE | ID: mdl-36154116

ABSTRACT

Alcoholic liver disease (ALD) is caused by alcohol abuse and can progress to hepatitis, cirrhosis, and even hepatocellular carcinoma. Previous studies suggested that Lactobacillus reuteri (L. reuteri) ameliorates ALD, but the exact mechanisms are not fully known. This study created an ALD model in mice, and the results showed L. reuteri significantly alleviating lipid accumulation in the mice. Transcriptome sequencing showed the L. reuteri treatment group had the most enriched metabolic pathway genes. We then studied the farnesoid X receptor (FXR) metabolic pathway in the mice liver tissue. Western blot analysis showed that FXR and carbohydrate response element binding protein (ChREBP) were upregulated and sterol regulatory element binding transcription factor 1 (Srebf1) and Cluster of differentiation (CD36) were downregulated in the L. reuteri-treated group. Subsequently, we administered FXR inhibitor glycine-ß-muricholic acid (Gly-ß-MCA) to mice, and the results show that Gly-ß-MCA could reduce the therapeutic effect of L. ruteri. In conclusion, our study shows L. reuteri improved liver lipid accumulation in mice via the FXR signaling regulatory axis and may be a viable treatment option for ALD.


Subject(s)
Chemical and Drug Induced Liver Injury, Chronic , Limosilactobacillus reuteri , Liver Diseases, Alcoholic , Animals , Carbohydrates/pharmacology , Chemical and Drug Induced Liver Injury, Chronic/metabolism , Chemical and Drug Induced Liver Injury, Chronic/pathology , Ethanol/metabolism , Glycine/pharmacology , Limosilactobacillus reuteri/genetics , Lipids/pharmacology , Liver/metabolism , Liver Diseases, Alcoholic/metabolism , Mice , Receptors, Cytoplasmic and Nuclear/genetics , Receptors, Cytoplasmic and Nuclear/metabolism , Signal Transduction , Sterols/metabolism , Transcriptome
14.
Bioorg Chem ; 126: 105899, 2022 09.
Article in English | MEDLINE | ID: mdl-35667255

ABSTRACT

BACKGROUND: Although liver fibrosis is a key pathologic process in many liver diseases, therapeutic approaches for inhibiting liver fibrosis are still very limited. N-Acetyl-l-tryptophan (l-NAT) has a hepatoprotective effect via inhibiting the destruction of liver cells, enhancing cell viability and reducing the inflammation. However, the effect of l-NAT on liver fibrosis is not determined. PURPOSE: The present study investigated the effect of l-NAT on liver fibrosis and explored it potential molecular mechanism. METHODS: To address this concern, this study was carried out via fibrotic mice model induced by CCl4 and many approaches such as various histological staining methods, western blot assay, etc. RESULT: l-NAT decreased the levels of alanine aminotransferase (ALT) and aspartate transaminase (AST) in fibrotic mice model induced by carbon tetrachloride (CCl4). Histological staining showed that l-NAT ameliorated liver injury and fibrosis, and reduced the expression of α-smooth muscle actin (α-SMA) and Collagen I protein. l-NAT also attenuated apoptosis by down-regulating the level of pro-apoptotic protein Bax and up-regulating that of anti-apoptotic protein Bcl-2. Moreover, l-NAT inhibited the expressions of TGF-ß1/SMAD and matrix metalloproteinase 9 (MMP9) proteins, and reversed the expression of YAP1 protein in CCl4-induced liver fibrosis. CONCLUSION: These results clearly demonstrated that l-NAT attenuated CCl4-induced liver fibrosis in mice, and this protective mechanism might relate to TGF-ß1/SMAD and Hippo/YAP1 signaling pathway. Thus, this study provided data basis for the prevention and treatment of liver fibrosis.


Subject(s)
Smad Proteins , Transforming Growth Factor beta1 , Animals , Carbon Tetrachloride , Hippo Signaling Pathway , Liver , Liver Cirrhosis/chemically induced , Liver Cirrhosis/drug therapy , Liver Cirrhosis/metabolism , Mice , Signal Transduction , Smad Proteins/metabolism , Transforming Growth Factor beta1/metabolism , Tryptophan/metabolism , YAP-Signaling Proteins/metabolism
15.
Int Immunopharmacol ; 108: 108892, 2022 Jul.
Article in English | MEDLINE | ID: mdl-35640376

ABSTRACT

BACKGROUND: As a major metabolic site, the liver is an important target organ of endotoxemia. High serum lipopolysaccharide (LPS) levels can cause hepatocyte necrosis and produce cholestasis, which results in severe liver injury. Contrastingly, thiamine (THA) has shown anti-inflammatory effects against severe infections and may be indicated for systemic endotoxemia treatment. Therefore, the present study was conducted to investigate the effective treatment of endotoxemia-induced liver injury with THA and the possible molecular mechanisms. METHODOLOGY/PRINCIPAL FINDINGS: in vivo, We established two models of endotoxemia-induced liver injury at the in vivo level using LPS and bile duct ligation (BDL) + LPS, administering prophylactic THA intraperitoneally to mice. In vitro, the effects of THA on RAW264.7 and THP-1 administration of LPS-induced inflammatory macrophage activation were observed. Metabolomic analysis screening and subsequent validation experiments were also performed. THA has different degrees of preventive therapeutic effects on different causes of endotoxemia-induced liver injury, as evidenced by a decreased alanine aminotransferase (ALT) and decreased inflammatory factors. This study aimed to clarify the specific mechanism. We subsequently found that THA reduced the inflammatory macrophages produced by RAW264.7 and THP-1 in response to LPS. Additionally, THA reduced galactose liver accumulation and improved glucose metabolism. Moreover, Galectin-3 (Gal-3), as a point of interaction between macrophage activation and galactose metabolism mechanisms, was observed to inhibit Gal-3 expression by THA at both in vivo and in vitro levels. CONCLUSIONS: This study revealed that THA may be a viable prophylactic treatment option for the prevention of liver injury occurring in endotoxemia, which is associated with its effects on the modulation of Gal-3 to improve the inflammatory response and the inhibition of galactose metabolism. Additional evidence is provided for its clinical application.


Subject(s)
Chemical and Drug Induced Liver Injury, Chronic , Cholestasis , Endotoxemia , Animals , Chemical and Drug Induced Liver Injury, Chronic/metabolism , Cholestasis/complications , Endotoxemia/drug therapy , Galactose/metabolism , Lipopolysaccharides/pharmacology , Liver , Macrophage Activation , Mice , Thiamine/metabolism , Thiamine/pharmacology , Thiamine/therapeutic use
16.
Front Pharmacol ; 13: 857015, 2022.
Article in English | MEDLINE | ID: mdl-35431932

ABSTRACT

The purpose of this study is to investigate the protective effect of kaempferol (KAE), the main active monomer from Penthorum chinense Pursh, on hepatic ischemia/reperfusion injury (HI/RI) and its specific mechanism. HI/RI is a common complication closely related to the prognosis of liver surgery, and effective prevention and treatment methods are still unavailable. Ischemia/reperfusion (I/R) injury is caused by tissue damage during ischemia and sustained oxidative stress and inflammation during reperfusion. Penthorum chinense Pursh is a traditional Chinese medicine widely used to treat liver disease since ancient times. Kaempferol (KAE), a highly purified flavonoid active monomer isolated and extracted from Penthorum chinense Pursh, was investigated for its protective effect on HI/RI. Our study indicates that KAE pretreatment alleviated I/R-induced transaminase elevation and pathological changes. Further analysis revealed that KAE pretreatment attenuates I/R-induced oxidative stress (as measured by the content of MDA, SOD and GSH) in vivo and reduces hypoxia/reoxygenation (H/R) -induced reactive oxygen species (ROS) generation in vitro. Meanwhile, KAE inhibits activation of NF-κB/p65 and reduces the release of pro-inflammatory factors (TNF-α and IL-6) to protect the liver from I/R-induced inflammation. Nuclear erythroid 2-related factor 2 (Nrf2) is a crucial cytoprotection regulator because it induces anti-inflammatory, antioxidant, and cytoprotective genes. Therefore, we analyzed the protein levels of Nrf2 and its downstream heme oxygenase-1 (HO-1) in the liver of mice and hepatocytes of humankind, respectively, and discovered that KAE pretreatment activates the Nrf2/HO-1 signaling pathway. In summary, this study confirmed the hepatoprotective effect of KAE on HI/RI, which inhibits oxidative stress and inflammation by activating the Nrf2/HO-1 signaling pathway.

17.
Bioorg Chem ; 122: 105737, 2022 05.
Article in English | MEDLINE | ID: mdl-35338970

ABSTRACT

Nonalcoholic steatohepatitis (NASH) is a severely inflammatory subtype of nonalcoholic fatty liver. Endoplasmic reticulum stress (ERS) and oxidative stress (OS) cause metabolic abnormalities, promote liver steatosis and inflammation, and are central to the development of NASH. Dihydroartemisinin (DHA) is a compound extracted from Artemisia annua that is often used in the treatment of malaria. Recent studies have shown that DHA also has a wide range of pharmacological effects, acting on various organs throughout the body to exert anti-inflammatory, antioxidant, and anti-fibrotic effects. In this study, we demonstrated in vitro that the anti-inflammatory effect of DHA is effective against NASH and reduces liver steatosis. DHA treatment decreased the synthesis of lipids, such as cholesterol and free fatty acids, and the expression of nuclear factor kappa-B. This is accomplished by inhibiting the unfolded protein response and reducing the production of reactive oxygen species, thereby inhibiting OS and ERS. This study reveals DHA's therapeutic effect and potential mechanism in NASH, implying that DHA could be a new and promising candidate for NASH therapy.


Subject(s)
Non-alcoholic Fatty Liver Disease , Artemisinins , Endoplasmic Reticulum Stress , Humans , Inflammation/drug therapy , Liver/metabolism , Non-alcoholic Fatty Liver Disease/drug therapy , Non-alcoholic Fatty Liver Disease/metabolism , Oxidative Stress
18.
Endocrine ; 76(2): 253-262, 2022 05.
Article in English | MEDLINE | ID: mdl-35298785

ABSTRACT

PURPOSE: Familial celiac disease syndrome (FCS) is a form of hypertriglyceridemia (HTG) caused by the accumulation of celiac particles. Currently, volanesorsen is considered to be used to treat patients with FCS and HTG to improve symptoms. To evaluate the effect of volanesorsen on lipid metabolism in patients with FCS, we performed a systematic evaluation and meta-analysis. METHODS: A systematic search of PubMed, Embase, ClinicalTrials.gov, and the Cochrane Library was conducted, and the bibliographies of original articles were checked manually. The quality of the studies was assessed using the Cochrane Risk of Bias tool. RESULTS: Four randomized, controlled trials involving 246 patients were analyzed in this study. Patients treated with volanesorsen showed (MD = -78.85%; 95% CI = -96.04 to -61.65, P = 0.67, I2 = 0%) decrease in TG and (MD = -80.08%; 95% CI = -90.02 to -71.54, P = 0.25, I2 = 29%) decrease in ApoC-III levels compared to patients in the placebo group showing a significant decrease. In addition, HDL-C increased (MD = 46.01% 95% CI = 41.03 to 50.99, P = 0.41, I2 = 0%), NHDL-C decreased (MD = -32.12%; 95% CI = -44.39 to -19.85, P = 0.11, I2 = 55%), VLDL-C decreased (MD = -65.88%; 95% CI = -83.97 to -47.79, P = 0.71, I2 = 0%), apo A1 increased (MD = 13.12%; 95% CI = 7.83 to 18.40, P = 0.72, I2 = 0%), and apoB increased (MD = 7.94 %; 95% CI = -1.90 to 17.78, P = 0.54, I2 = 0%) all suggest that volanesorsen has an overall FCS with a therapeutic effect. However, LDL-C increased (MD = 99.59%; 95% CI = 69.19 to 130.00, P = 0.61, I2 = 0%) and apo B48 decreased (MD = 82.89%; 95% CI = -100.88 to -64.91, P = 0.42, I2 = 0%), showing an inverse effect, suggesting that volanesorsen's did not target all proteins of lipid metabolism.


Subject(s)
Hypertriglyceridemia , Oligonucleotides , Apolipoprotein C-III/metabolism , Humans , Hypertriglyceridemia/drug therapy , Oligonucleotides/adverse effects , Randomized Controlled Trials as Topic , Triglycerides
19.
Sleep ; 44(8)2021 08 13.
Article in English | MEDLINE | ID: mdl-33624804

ABSTRACT

STUDY OBJECTIVES: The first objective of this study was to determine whether establishing bedtime routines in the first year of life predicts better sleep outcomes (i.e. longer sleep duration, less nighttime waking, earlier bedtime, shorter sleep latency, fewer sleep problems) across the first 2 years of life. The second objective was to determine whether specific adaptive bedtime activities (e.g. book reading) were associated with sleep outcomes. The third objective was to describe changes in adaptive bedtime activities (hug/kiss caregiver, say goodnight to family) across the first 2 years of life. METHODS: Parents of 468 children from the STRONG Kids 2 birth cohort were surveyed about bedtime and bedtime routines, their child's sleep duration, nighttime waking, sleep latency, and sleep problems at 3, 12, 18, and 24 months of age. RESULTS: Cross-lagged panel models revealed partial evidence for reciprocal associations between bedtime routine consistency and adaptive bedtime activities and better sleep outcomes over time. Specifically, more bedtime routine consistency predicted less nighttime waking and sleep problems, and more bedtime adaptive activities predicted longer sleep duration and fewer sleep problems. DISCUSSION: The findings are discussed from a developmental perspective to highlight how consistency of bedtime routines established as early as 3 months of age may affect sleep outcomes and that the adaptive activities associated with these routines may increase in frequency over the first 2 years of life.


Subject(s)
Sleep Initiation and Maintenance Disorders , Sleep , Child , Child, Preschool , Humans , Parents , Surveys and Questionnaires , Time Factors
20.
Sleep Health ; 6(6): 743-748, 2020 12.
Article in English | MEDLINE | ID: mdl-32534821

ABSTRACT

OBJECTIVE: The present study investigated the bidirectional associations of adolescent peer experiences and sleep/wake problems during early adolescence. DESIGN: The study used a two-wave longitudinal design. SETTING: Participants were recruited from a small urban community in the Midwestern United States. PARTICIPANTS: At T1, participants included 100 adolescents (53% boys; mean age = 11.05 years, SD = 0.33) and their mothers (96% biological), and 78 teachers (62% female). At T2, 89 adolescents and their mothers returned; 76 teachers participated. The racial/ethnic composition of the sample of adolescents and mothers included 57%-63% European American and 43%-37% racial/ethnic minorities (e.g., African American, Hispanic/Latino). MEASUREMENTS: At both waves, adolescents reported on their sleep quality (sleep/wake problems). Adolescent-, mother-, and teacher-reported peer victimization were composited at each wave, and a composite for positive peer relationships included adolescent-reported friendship quality; adolescent-, mother-, and teacher-reported friends' prosociality; and mother- and teacher-reported peer acceptance. RESULTS: Findings from cross-lagged panel models revealed some support for reciprocal associations such that T1 positive peer relationships predicted fewer T2 sleep problems and T1 sleep problems predicted less positive peer relationships at T2. However, only T1 sleep problems predicted more peer victimization at T2, controlling for T1 peer victimization, with the effect driven by adolescent-reported peer victimization. CONCLUSIONS: Findings provide new insight for prevention and intervention efforts regarding the potential protective function of positive peer relationships in reducing sleep problems, as well as the need to address sleep problems as a means to promote more positive peer relationships and less peer victimization over time.


Subject(s)
Crime Victims/statistics & numerical data , Interpersonal Relations , Peer Group , Sleep Wake Disorders/epidemiology , Child , Female , Humans , Longitudinal Studies , Male , Midwestern United States/epidemiology , Urban Population/statistics & numerical data
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