1.The increased risk of exposure to fine particulate matter for depression incidence is mediated by elevated TNF-R1: the Healthy Aging Longitudinal Study.
Ta-Yuan CHANG ; Ting-Yu ZHUANG ; Yun-Chieh YANG ; Chih-Cheng HSU ; Wan-Ju CHENG
Environmental Health and Preventive Medicine 2025;30():49-49
BACKGROUND:
Depression among older adults is an important public health issue, and air and noise pollution have been found to contribute to exacerbation of depressive symptoms. This study examined the association of exposure to air and noise pollutants with clinically-newly-diagnosed depressive disorder. The mediating role of individual pro-inflammatory markers was explored.
METHODS:
We linked National Health Insurance claim data with 2998 healthy community-dwellers aged 55 and above who participated in the Healthy Aging Longitudinal Study between 2009 and 2013. Newly diagnosed depressive disorder was identified using diagnostic codes from the medical claim data. Pollutants were estimated using nationwide land use regression, including PM2.5 and PM10, carbon monoxide, ozone, nitrogen dioxide, sulfur dioxide, and road traffic noise. Cox proportional hazard models were employed to examine the association between pollutants and newly developed depressive disorders. The mediating effect of serum pro-inflammatory biomarkers on the relationship was examined.
RESULTS:
Among the 2998 participants, 209 had newly diagnosed depressive disorders. In adjusted Cox proportional hazard models, one interquartile range increase in PM2.5 (8.53 µg/m3) was associated with a 17.5% increased hazard of developing depressive disorders. Other air pollutants and road traffic noise were not linearly associated with depressive disorder incidence. Levels of serum tumor necrosis factor receptor 1 mediated the relationship between PM2.5 and survival time to newly onset depressive disorder.
CONCLUSION
PM2.5 is related to an increased risk of newly developed depressive disorder among middle-aged and older adults, and the association is partially mediated by the pro-inflammatory marker TNF-R1.
Humans
;
Particulate Matter/analysis*
;
Male
;
Female
;
Middle Aged
;
Longitudinal Studies
;
Aged
;
Incidence
;
Air Pollutants/analysis*
;
Environmental Exposure/adverse effects*
;
Taiwan/epidemiology*
;
Receptors, Tumor Necrosis Factor, Type I/blood*
;
Proportional Hazards Models
;
Biomarkers/blood*
;
Depression/epidemiology*
;
Aged, 80 and over
;
Depressive Disorder/chemically induced*
;
Risk Factors
;
Air Pollution/adverse effects*
2.Analysis of risk factors for ventilator-associated pneumonia and its prognosis in patients with severe craniocerebral injury.
Qinghua LIN ; Huili GUO ; Lin QU ; Lianzhen QI
Chinese Critical Care Medicine 2025;37(6):549-554
OBJECTIVE:
To analyze the risk factors for ventilator-associated pneumonia (VAP) and its prognosis in patients with severe craniocerebral injury.
METHODS:
A prospective observational study was conducted. Patients with severe craniocerebral injury admitted to the Second Affiliated Hospital of Xingtai Medical College from January 2020 to December 2022 were enrolled as the study subjects. Patients were divided into VAP group and non-VAP group based on the occurrence of VAP. VAP patients were further stratified into low-risk group [sequential organ failure assessment (SOFA) score 0-5], moderate-risk group (SOFA score 6-8), and high-risk group (SOFA score ≥ 9). General data, serological indicators [interleukin-6 (IL-6), interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), and signal transducer and activator of transcription 3 (STAT3)], and 28-day prognosis (with mortality as the endpoint event) were compared. Multivariate Logistic regression was used to identify risk factors for VAP and 28-day mortality. Linear regression was applied to analyze the correlations between risk factors and outcomes.
RESULTS:
A total of 140 patients with severe craniocerebral injury were enrolled, including 49 in the VAP group and 91 in the non-VAP group. The primary cause of injury was traffic accidents, followed by falls and heavy object impacts. Among VAP patients, 38 survived and 11 died within 28 days; 112 were classified as low-risk, 25 as moderate-risk, and 12 as high-risk. Significant differences were observed in age, body mass index (BMI), smoking history, hypertension, diabetes, hyperlipidemia, length of hospital stay, duration of mechanical ventilation, serum albumin levels, and frequency of sputum suction among different subgroups. Serologically, IL-1β, TNF-α, IL-6, and STAT3 mRNA expression levels in the VAP group were significantly higher than those in the non-VAP group. Deceased VAP patients exhibited higher IL-1β, TNF-α, IL-6, and STAT3 mRNA levels compared to survivors. These biomarkers progressively increased from low-risk to high-risk subgroups. Multivariate Logistic regression identified age [odds ratio (OR) were 0.328 and 0.318], BMI (OR were 0.340 and 0.268), hypertension (OR were 0.275 and 0.245), diabetes (OR were 0.319 and 0.307), hyperlipidemia (OR were 0.228 and 0.235), smoking history (OR were 0.255 and 0.240), length of hospital stay (OR were 0.306 and 0.230), duration of mechanical ventilation (OR were 0.247 and 0.219), frequency of sputum suction (OR were 0.325 and 0.228), IL-1β (OR were 0.231 and 0.259), TNF-α (OR were 0.308 and 0.235), IL-6 (OR were 0.298 and 0.277), and STAT3 (OR were 0.259 and 0.265) as independent risk factors for both VAP occurrence and 28-day mortality (all P < 0.05). Correlation analysis revealed that serum albumin levels were negatively correlated with VAP occurrence and mortality (all P < 0.01), while other factors showed positive correlations (all P < 0.01).
CONCLUSIONS
Age, BMI, length of hospital stay, duration of mechanical ventilation, frequency of sputum suction, hypertension, diabetes, hyperlipidemia, smoking history, IL-1β, TNF-α, and IL-6/STAT3 signaling pathway activation are significantly associated with VAP development and poor prognosis in patients with severe craniocerebral injury, providing a scientific basis for targeted clinical interventions.
Humans
;
Risk Factors
;
Pneumonia, Ventilator-Associated
;
Prognosis
;
Prospective Studies
;
Craniocerebral Trauma/complications*
;
Interleukin-6/blood*
;
Male
;
Female
;
STAT3 Transcription Factor/blood*
;
Interleukin-1beta/blood*
;
Tumor Necrosis Factor-alpha/blood*
;
Middle Aged
;
Adult
;
Logistic Models
3.Effect of ulinastatin on perioperative glycocalyx and lung function in patients undergoing mitral valve replacement surgery.
Qiang LÜ ; Deliang WANG ; Dongli XIE
Journal of Central South University(Medical Sciences) 2018;43(6):646-650
To explore the effect of ulinastatin on perioperative glycocalyx and lung function in patients undergoing mitral valve replacement surgery.
Methods: Fourty patients, undergoing mitral valve replacement, were randomly allocated into a control group and an ulinastatin group, which were administrated 50 mL normal saline or 2×104 U/kg ulinastatin at the beginning of cardiopulmonary bypass (CPB), respectively. The radical artery blood was collected at 4 time points: After induction of anesthesia (T0), at 10 min after the start of CPB (T1), 1 h after the end of CPB (T2), and 8 h after operation. The concentration of syndecan-1 and TNF-α in blood was measured. Moreover, the blood gas analysis was preformed and the oxygen index (OI) and difference in alveolar arterial oxygen partial pressure (PA-aO2) were calculated at T0, T2, and T3.
Results: There were no significant difference between the 2 groups in OI, PA-aO2, and the concentration of syndecan-1 and TNF-α at T0 (P>0.05). The concentration of syndecan-1 and TNF-α was significantly increased at T1 and T2 in the 2 groups, and reached peak at T2. Compared with the control group, the concentration of syndecan-1 and TNF-α was decreased in the ulinastatin group at T1, T2, and T3 (P<0.05). Compared with T0, OI was lower and PA-aO2 was higher at T2 and T3 in both groups, but the 2 indexes were improved in the ulinastatin group compared with those in the control group (P<0.05).
Conclusion: Ulinastatin can improve the post-operative pulmonary ventilation function in patients with mitral valve replacement. The mechanism may be associated with the inhibition of TNF-α release and the reduction of glycocalyx shedding induced by ulinastatin.
Cardiopulmonary Bypass
;
Glycocalyx
;
drug effects
;
Glycoproteins
;
pharmacology
;
Heart Valve Prosthesis Implantation
;
Humans
;
Lung
;
drug effects
;
Mitral Valve
;
surgery
;
Oxygen
;
blood
;
Syndecan-1
;
blood
;
Time Factors
;
Tumor Necrosis Factor-alpha
;
blood
4.Genetic Contributions to Childhood Obesity: Association of Candidate Gene Polymorphisms and Overweight/Obesity in Korean Preschool Children.
Kee Hwan YOO ; Hyung Eun YIM ; Eun Soo BAE ; Young Sook HONG
Journal of Korean Medical Science 2017;32(12):1997-2004
This study was aimed to investigate the association of candidate gene polymorphisms and obesity or overweight in young Korean children. A total of 190 Korean preschool children (96 control, 48 overweight, and 46 obese children) were genotyped for the angiotensin converting enzyme (ACE) insertion (I)/deletion (D), angiotensin II type 2 receptor (AT2) C3123A, transforming growth factor (TGF)-β1 T869C, vascular endothelial growth factor (VEGF) T460C, and tumor necrosis factor (TNF)-α G308A polymorphisms. No differences were found among the groups with respect to age, sex, birth weight, blood pressure levels, and serum concentrations of glucose and total cholesterol. Obese children showed a higher incidence of ACE DD genotype and D allelic frequency compared to the controls (odds ratio [OR], 2.7, 95% confidence interval [CI], 1.01–7.21; OR, 2.5, 95% CI, 1.49–4.19; all P < 0.05). The frequency of TC genotype and C allele in the TGF-β1 T869C polymorphism (OR, 2.08, 95% CI, 1.01–4.27; OR, 1.93, 95% CI, 1.15–3.21) and that in the VEGF T460C polymorphism (OR, 2.5, 95% CI, 1.19–5.28; OR, 2.15, 95% CI, 1.26–3.68) was also higher in obese children than in control subjects (all P < 0.05). Overweight children exhibited a higher frequency of the A allele in the AT2 C3123A polymorphism compared to the controls (OR, 1.72, 95% CI, 1.03–2.88, P < 0.05). There were no differences in the TNF-α G308A polymorphism among the groups. The ACE I/D, AT2 C3123A, TGF-β1 T869C, and VEGF T460C polymorphisms can affect susceptibility to obesity or overweight in Korean children.
Alleles
;
Angiogenic Proteins
;
Birth Weight
;
Blood Pressure
;
Child
;
Child, Preschool*
;
Cholesterol
;
Genetic Variation
;
Genotype
;
Glucose
;
Humans
;
Incidence
;
Obesity
;
Overweight
;
Pediatric Obesity*
;
Peptidyl-Dipeptidase A
;
Receptor, Angiotensin, Type 2
;
Renin-Angiotensin System
;
Transforming Growth Factors
;
Tumor Necrosis Factor-alpha
;
Vascular Endothelial Growth Factor A
5.Clinical value of detecting serum soluble CD163 level in patients with atrial fibrillation.
Shi-Mao ZHONG ; Yu-Hua QIN ; Zuo-Cha LI ; Ye-Sheng WEI
Journal of Southern Medical University 2016;36(10):1406-1409
OBJECTIVETo investigate the relationship between atrial fibrillation (AF) and serum soluble CD163.
METHODSA total of 336 patients with heart valve disease were included in this study, including 167 with AF and 169 with sinus rhythm. The clinical data were compared between the two grops, and Logistic regression analysis was used to identify the risk factors associated with AF.
RESULTSThe levels of total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), tumor necrosis factor (TNF), interleukin-6 (IL - 6), high-sensitivity C-reactive protein (hs-CRP) and left atrial diameter (LAD) all differed significantly between the two groups (P<0.05). Serum soluble CD163 levels in AF patients were significantly higher than those in patients with sinus rhythm (P<0.05). Serum soluble CD163 was positively correlated with TNF (r=0.244, P=0.244), IL-6 (r=0.186, P=0.186), hs-CRP (r=0.183, P=0.183) and LAD (r=0.194, P=0.194) in patients with AF. Logistic regression analysis showed that LAD, IL-6, TNF, hs-CRP and CD163 were all associated with AF. ROC curve analysis showed that the area under curve of serum soluble CD163 was 0.861 in patients with AF (CI 95%: 0.820-0.901, P<0.01) with a sensitivity and a specificity of 80.8 and 76.9%, respectively.
CONCLUSIONSerum soluble CD163 level may be a risk factor for AF, and an increased soluble CD163 level may indicate active inflammation in AF patients.
Antigens, CD ; blood ; Antigens, Differentiation, Myelomonocytic ; blood ; Atrial Fibrillation ; blood ; C-Reactive Protein ; analysis ; Heart Atria ; pathology ; Humans ; Inflammation ; blood ; Interleukin-6 ; blood ; Lipoproteins, HDL ; blood ; Lipoproteins, LDL ; blood ; Receptors, Cell Surface ; blood ; Risk Factors ; Tumor Necrosis Factor-alpha ; blood
6.Association of TNFRSF1B +676 gene polymorphism with the risk of rheumatoid arthritis in Han Chinese population in Hunan.
Xi XIE ; Fen LI ; Jinwei CHEN ; Jiesheng GAO ; Fanggen LU
Journal of Central South University(Medical Sciences) 2016;41(9):891-897
OBJECTIVE:
To study the association of TNFRSF1B +676 gene (rs1061622) polymorphism with the risk of rheumatoid arthritis (RA ) in Han Chinese population of Hunan.
METHODS:
A total of 112 patients with RA from Han Chinese population in Hunan were recruited, along with 129 healthy controls. TNFRSF1B +676 (rs1061622) gene polymorphisms were examined by PCR-RFLP. Serum levels of soluble TNFR II were analyzed by ELISA.
RESULTS:
RA patients displayed a similar TNFRSF1B +676 genotype to controls (GG/TG/TT: 5/62/45 vs 9/56/64, P=0.167), but signifi cant diff erence was found between female RA patients and female controls (GG/TG/TT: 3/49/24 vs 8/28/48, P<0.001). No significant difference was found in the frequency of TNFRSF1B +676 T or G allele between RA patients and controls (P>0.05). RA patients showed a signifi cantly higher level of serum soluble tumor necrosis factor receptor II (sTNFR II) than controls [(7.83±2.61) ng/mL vs (4.32±1.67) ng/mL, P<0.001], but there was no diff erence among the three genotypes (P>0.05). No association was found between TNFRSF1B+676 gene polymorphism and RA clinical characteristics.
CONCLUSION
In Han Chinese population of Hunan province, TNFRSF1B+676 gene polymorphisms are not associated with the genetic risk of RA .
Alleles
;
Arthritis, Rheumatoid
;
ethnology
;
genetics
;
Asian Continental Ancestry Group
;
Female
;
Gene Frequency
;
Genetic Association Studies
;
Genetic Predisposition to Disease
;
Genotype
;
Humans
;
Male
;
Polymorphism, Genetic
;
genetics
;
Polymorphism, Single Nucleotide
;
Receptors, Tumor Necrosis Factor, Type II
;
blood
;
genetics
;
Risk Factors
7.Preliminary study on substitution of Antelope Horn in Danqi Piantan capsule with artificial bezoar.
Jin-bo WANG ; Tao CHEN ; Zheng LI ; Yan-jun ZHANG ; Wei-li CUI ; Jin LI
China Journal of Chinese Materia Medica 2015;40(18):3616-3622
To study the protective effect of Danqi Piantan capsule ( DPC) and its antelope horn substitution (DPCAS) on the cerebral ischemia, in order to preliminary study the possibility of replacing antelope horn with artificial bezoar. In this study, the left middle cerebral artery occlusion (MCAO) was adopted. Totally 150 SD rats were randomly divided into 5 groups: the sham operation group, the model group, the Danqi Piantan capsule (DPC) group (0.246 g x kg(-1) x d(-1)), the Danqi Piantan capsule without antelope horn (DPCRA) group (0.246 g x kg(-1) x d(-1)), the Danqi Piantan capsule without antelope horn and with double artificial bezoar (DPCDB) group (0.246 g x kg(-1) x d(-1)). The MCAO model was prepared 1 h later after the administration on the 5th day. At 24 h after the operation, the inner canthus blood was collected to determine the serum superoxide dismutase (SOD) activity and the endothelin (ET) content. At 72 h after the operation, the cerebral infarct size and the cerebral index were determined by TTC-staining. The fluorescent quantitative PCR method was used to detect brain Bcl-2, Caspase-3, IL-1β, P-selectin, E-selectin, ICAM-1 mRNA expressions. The mmunohistochemical method was used to detect ICAM-1, IL-1β, TNF-α, IL-6 expressions in ischemic penumbra. According to the results, compared with the model group, DPCDB and DPC groups showed almost consistent results, indicating both of the two group can significantly improved cerebral infarction index and cerebral index (P < 0.05), increase the serum SOD activity (P < 0.05), decrease the serum ET level and Caspase-3 expression, IL-1β, P-selectin, E-selectin, ICAM-1 mRNA expressions in brain tissues (P < 0.05) and expressions of ICAM-1, IL-1,6, TNF-α, IL-6 positive cells in ischemic penumbra (P < 0.05) and increase the Bcl-2 expression (P < 0.05). The DPCRA group showed much lower impacts on indexes than DPCDB and DPC groups. This suggests that DPCDB and DPC reveal similar efficacies and antelope horn in Danqi Piantan capsule can be substitutes by artificial bezoar.
Animals
;
Antelopes
;
Bile
;
chemistry
;
Biological Factors
;
administration & dosage
;
chemical synthesis
;
chemistry
;
Brain
;
drug effects
;
metabolism
;
Caspase 3
;
genetics
;
metabolism
;
Drug Compounding
;
Horns
;
chemistry
;
Humans
;
Infarction, Middle Cerebral Artery
;
drug therapy
;
genetics
;
metabolism
;
Intercellular Adhesion Molecule-1
;
genetics
;
metabolism
;
Interleukin-1beta
;
genetics
;
metabolism
;
Male
;
Medicine, Chinese Traditional
;
Rats
;
Rats, Sprague-Dawley
;
Superoxide Dismutase
;
blood
;
genetics
;
Tumor Necrosis Factor-alpha
;
genetics
;
metabolism
8.Study of the change and role of protein C system in ulcerate colitis.
Xu-Hong LIN ; Hui-Chao WANG ; Dan-Dan WEI ; Bin WANG ; Quan-Xing GE ; Chun-Yang BAI ; Ya-Qiang WANG ; Xue-Qun REN
Acta Physiologica Sinica 2015;67(2):214-224
Hypercoagulable state and thrombosis are major lethal causes of ulcerate colitis (UC). The aim of the present study is to explore the change and role of protein C (PC) system in UC thrombosis. 4% dextran sulfate sodium (DSS) was used to induce the UC model, and the body weight, the length of colon, and the weight of spleen were measured after intake of DSS as drinking water for 1 week. The macroscore and microscore were examined. The quantity of macrophage in colon smooth muscle was observed by immunofluorescence, and TNF-α and IL-6 levels in plasma were evaluated by ELISA. Intravital microscopy was applied to observe colonic mucosal microvascular circulation, activities of PC and protein S (PS) were determined by immunoturbidimetry, endothelial cell protein C receptor (EPCR) and thrombomodulin (TM) expressions were detected by immunohistochemistry. In vitro, TNF-α and IL-6 levels were tested in supernatant of macrophage separated from colonic tissue. After stimulation of mouse colonic mucosa microvascular endothelial cells by TNF-α and IL-6 respectively, the activities of PC, PS, activated protein C (APC) were evaluated, and the expressions of EPCR and TM were detected by Western blotting. The results revealed that compared with control, the DSS mouse showed weight loss (P < 0.05), a shortened colon (P < 0.05), and swelled spleen (P < 0.05), accompanied by higher histological score (P < 0.05), as well as infiltration of macrophages, elevated TNF-α and IL-6 levels in plasma (P < 0.01). The intravital microscopy results revealed that compared with control, DSS mice showed significantly enhanced adhesion of leukocytes and colonic mucosal microvascular endothelial cells (P < 0.01), meanwhile, decreased activity of PC and PS in plasma (P < 0.01 or P < 0.05), and down-regulated expression of EPCR (P < 0.01). The degree of inflammation was negatively correlated with the PC activity. In vitro, TNF-α and IL-6 levels were increased in the supernatant of macrophages from DSS mice colonic tissue (P < 0.05), and after incubation of TNF-α or IL-6 with colonic mucosal microvascular endothelial cells, the APC activity was decreased (P < 0.05 or P < 0.01), and expression of EPCR was down regulated (P < 0.05). These results suggest that PC system is inhibited in UC mouse. Presumably, the mechanism may be due to the secretion of cytokines from macrophages and subsequential influence on the function of endothelia cells. Furthermore, enhancement of PC system activity may serve as a new strategy for the treatment of UC.
Animals
;
Blood Coagulation Factors
;
metabolism
;
Colitis, Ulcerative
;
chemically induced
;
physiopathology
;
Dextran Sulfate
;
Immunohistochemistry
;
Inflammation
;
Interleukin-6
;
blood
;
Intestinal Mucosa
;
pathology
;
Macrophages
;
cytology
;
Mice
;
Protein C
;
metabolism
;
Receptors, Cell Surface
;
metabolism
;
Spleen
;
pathology
;
Tumor Necrosis Factor-alpha
;
blood
9.Early effects of tumor necrosis factor inhibition on bone homeostasis after soluble tumor necrosis factor receptor use.
Mie Jin LIM ; Seong Ryul KWON ; Kowoon JOO ; Min Jung SON ; Shin Goo PARK ; Won PARK
The Korean Journal of Internal Medicine 2014;29(6):807-813
BACKGROUND/AIMS: Our aim was to assess whether short-term treatment with soluble tumor necrosis factor (TNF) receptor affects circulating markers of bone metabolism in rheumatoid arthritis (RA) patients. METHODS: Thirty-three active RA patients, treated with oral disease-modifying antirheumatic drugs (DMARDs) and glucocorticoids for > 6 months, were administered etanercept for 12 weeks. Serum levels of bone metabolism markers were compared among patients treated with DMARDs at baseline and after etanercept treatment, normal controls and naive RA patients not previously treated with DMARDs (both age- and gender-matched). RESULTS: Bone-specific alkaline phosphatase (BSALP) and serum c-telopeptide (CTX)-1 levels were lower in RA patients treated with DMARDs than in DMARD-naive RA patients. After 12 weeks of etanercept treatment, serum CTX-1 and sclerostin levels increased. In patients whose DAS28 improved, the sclerostin level increased from 1.67 +/- 2.12 pg/mL at baseline to 2.51 +/- 3.03 pg/mL, which was statistically significant (p = 0.021). Increases in sclerostin levels after etanercept treatment were positively correlated with those of serum CTX-1 (r = 0.775), as were those of BSALP (r = 0.755). CONCLUSIONS: RA patients treated with DMARDs showed depressed bone metabolism compared to naive RA patients. Increases in serum CTX-1 and sclerostin levels after short-term etanercept treatment suggest reconstitution of bone metabolism homeostasis.
Adult
;
Alkaline Phosphatase/blood
;
Arthritis, Rheumatoid/blood/diagnosis/*drug therapy
;
Biological Markers/blood
;
Bone Morphogenetic Proteins/blood
;
Bone Remodeling/*drug effects
;
Collagen Type I/blood
;
Female
;
Genetic Markers
;
Homeostasis
;
Humans
;
Immunoglobulin G/*administration & dosage
;
Immunosuppressive Agents/*administration & dosage
;
Inflammation Mediators/blood
;
Male
;
Middle Aged
;
Peptides/blood
;
Receptors, Tumor Necrosis Factor/*administration & dosage
;
Time Factors
;
Treatment Outcome
;
Tumor Necrosis Factor-alpha/antagonists & inhibitors
10.Ameliorative effect of myricetin on insulin resistance in mice fed a high-fat, high-sucrose diet.
Ha Neul CHOI ; Min Jung KANG ; Soo Jin LEE ; Jung In KIM
Nutrition Research and Practice 2014;8(5):544-549
BACKGROUND/OBJECTIVES: Obesity-associated insulin resistance is a strong risk factor for type 2 diabetes mellitus. The aim of this study was to investigate the effect of myricetin on adiposity, insulin resistance, and inflammatory markers in mice with diet-induced insulin resistance. MATERIALS/METHODS: Five-week-old male C57BL/6J mice were fed a basal diet, a high-fat, high-sucrose (HFHS) diet, or the HFHS diet containing 0.06% myricetin or 0.12% myricetin for 12 weeks after a 1-week adaptation, and body weight and food intake were monitored. After sacrifice, serum lipid profiles, glucose, insulin, adipocyte-derived hormones, and proinflammatory cytokines were measured. The homeostasis model assessment for insulin resistance (HOMA-IR) was determined. RESULTS: Myricetin given at 0.12% of the total diet significantly reduced body weight, weight gain, and epidydimal white adipose tissue weight, and improved hypertriglyceridemia and hypercholesterolemia without a significant influence on food intake in mice fed the HFHS diet. Serum glucose and insulin levels, as well as HOMA-IR values, decreased significantly by 0.12% myricetin supplementation in mice fed the HFHS diet. Myricetin given at 0.12% of the total diet significantly reduced serum levels of leptin, tumor necrosis factor-alpha (TNF-alpha) and interleukin-6 (IL-6) in mice fed the HFHS diet. CONCLUSIONS: These findings suggest that myricetin may have a protective effect against diet-induced obesity and insulin resistance in mice fed HFHS diet, and that alleviation of insulin resistance could partly occur by improving obesity and reducing serum proinflammatory cytokine levels.
Adipose Tissue, White
;
Adiposity
;
Animals
;
Blood Glucose
;
Body Weight
;
Cytokines
;
Diabetes Mellitus, Type 2
;
Diet*
;
Eating
;
Glucose
;
Homeostasis
;
Humans
;
Hypercholesterolemia
;
Hypertriglyceridemia
;
Inflammation
;
Insulin
;
Insulin Resistance*
;
Interleukin-6
;
Leptin
;
Male
;
Mice*
;
Obesity
;
Risk Factors
;
Tumor Necrosis Factor-alpha
;
Weight Gain

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