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Aerobic exercise mitigates high-fat diet-induced cognitive decline through suppressing liver-brain-axis-mediated ATF3 and neuroinflammation

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Food Science and Human Wellness 2024年

作者： Tong Wu Baoxuan Lin Min Jia Jinxiu Li Ning Chen Tianjiu Research and Development Center for exercise Nutrition and Foods， Hubei Key Laboratory of exercise Training and Monitoring， College of sports medicine， Wuhan sports University

It is well known that appropriate aerobic exercise can effectively alleviate fatty liver and enhance brain function. The concept of multi-organ crosstalk coordinating disease progression has become the current research hot topic. However， there remains an urgent need to elucidate its specific mechanisms. This study aimed to explore the impact of a high-fat diet （HFD） on liver health and cognitive function， and to further uncover the regulatory effect of aerobic exercise by liver-specific ATF3 knockout (ATF3cKO) mice in a “liver-brain” axis mode. The 5-week-old C57BL/6 and ATF3cKOmice were fed with HFD for 32 weeks， and sequentially subjected to aerobic exercise intervention at the 20thweek for another 12 consecutive weeks. Meanwhile， C57BL/6 mice were provided with a normal diet as the control group. The functional parameters of liver and brain of all mice were assessed. Cognitive capacity of all mice was assessed by the Morris water maze （MWM）. Inflammatory factors in the serum and brain of mice were quantified using enzyme-linked immunosorbent assay （ELISA）， and the expression of inflammasomes was detected by immunohistochemistry （IHC）. Additionally， the activation of NF-κB and PI3K signal pathways was analyzed by Western blotting. In this study， HFD impaired hepatic and brain functions， while aerobic exercise and liver-specific ATF3 knockout suppressed inflammatory factors in the peripheral circulation through hepatoprotective mechanisms， thereby attenuating cerebral inflammation and preserving neurological integrity， as well as mitigating HFD-induced cognitive decline.

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Diet restriction and exercise alleviate cognitive reduction of high fat diet(HFD)-induced obese mice by rescuing inflammation-mediated compromised insulin signaling pathway through activating AMPK/SIRT1 signal pathway and suppressing TLR4 signal pathway

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Food Science and Human Wellness 2024年

作者： Hu Zhang Ye Zhang Jiling Liang Jiahang Li Miao He Xin Liu Jielun Huang Minghui Wang Jingjing Fan Ning Chen Tianjiu Research and Development Center for exercise Nutrition and Foods， Hubei Key Laboratory of exercise Training and Monitoring， College of sports medicine， Wuhan sports University Physical Education Institute， Hubei University of Science and Technology

Obesity， caused by excessive energy， leads to body weight gain and various diseases， including cognitive impairment. Current studies suggest that diet restriction such as optimal fasting and regular exercise are crucial for improving cognitive capacity. However， further exploration is needed to understand the specific mechanisms of high fat diet (HFD)-induced cognitive decline in obesity. In the present study， 4-month-old mice were subjected to HFD feeding for 18 weeks， followed by aerobic exercise and high-intensity intermittent exercise， regular diet feeding， and intermittent fasting for 8 weeks， and then used to evaluate cognitive capacity， inflammation， compromised insulin signaling pathway， oxidative stress， and apoptosis in hippocampal tissue， as well as AMPK/SIRT1 and TLR4 signal pathways. Obese mice revealed impaired cognitive capacity as compared with mice fed with regular diets. In contrast， aerobic exercise， high-intensity intermittent exercise， regular diet， and intermittent fasting could inhibit apoptosis caused by inflammation-mediated compromised insulin signaling pathway in hippocampal tissues through activating the AMPK/SIRT1 signal pathway and suppressing the TLR4 signal pathway， thereby rescuing the cognitive impairment of obese mice. Therefore， diet restriction and exercise interventions may play a positive role in reverting obesity-induced cognitive impairment.

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Incidence of respiratory infections and SARS-CoV-2 is higher during contact phases in student rugby players–Lessons learnt from COVID-19 risk mitigation strategies–AWARE V

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sports medicine and Health Science 2024年第3期6卷 252-259页

作者： Carolette Snyders Nicola Sewry Wayne Derman Maaike Eken Esme Jordaan Sonja Swanevelder Martin Schwellnus Sport Exercise Medicine and Lifestyle Institute(SEMLI)Faculty of Health SciencesUniversity of PretoriaSouth Africa Section sports medicine Faculty of Health SciencesUniversity of PretoriaSouth Africa IOC Research centre of South Africa South Africa Institute of Sport and exercise medicine Department of ExerciseSport and Lifestyle MedicineFaculty of Medicine and Health SciencesStellenbosch UniversitySouth Africa Biostatistics Unit South African Medical Research CouncilSouth Africa Statistics and Population Studies Department University of the Western CapeSouth Africa

The incidence of acute respiratory infections(ARinf),including SARS-CoV-2,in unvaccinated student rugby players during phases from complete lockdown during the COVID-19 pandemic to returning to competition is *** aim of the study was to determine the incidence of ARinf(including SARS-CoV-2)during noncontact and contact phases during the COVID-19 pandemic to evaluate risk mitigation *** this retrospective cohort study,319 top tier rugby players from 17 universities completed an online *** was reported during 4 phases over 14 months(April 2020–May 2021):phase 1(individual training),phase 2(non-contact team training),phase 3(contact team training)and phase 4(competition).Incidence(per 1000 player days)and Incidence Ratio(IR)for‘All ARinf’,and subgroups(SARS-CoV-2;‘Other ARinf’)are *** factors associated with ARinf were also *** incidence of‘All ARinf’(0.31)was significantly higher for SARS-CoV-2(0.23)vs.‘Other ARinf’(0.08)(psports,can be compared.

关键词： COVID-19 Athletes Risk Prevention Epidemiology

Managing end-stage carcinoid heart disease:A case report and literature review

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World Journal of Gastrointestinal Oncology 2024年第3期16卷 1076-1083页

作者： Nikola Bulj Vedran Tomasic Maja Cigrovski Berkovic Department of Cardiology University Hospital Centre“Sestre Milosrdnice“Zagreb 10000Croatia Division of Gastroenterology Department of Internal MedicineUniversity Hospital Centre“Sestre Milosrdnice”Zagreb 10000Croatia Department for Sport and exercise medicine University of Zagreb Faculty of KinesiologyZagreb 10000Croatia

BACKGROUND Gastroenteropancreatic neuroendocrine neoplasms(GEP-NENs)are rare tumors,often diagnosed in an advanced stage when curative treatment is impossible and grueling symptoms related to vasoactive substance release by tumor cells affect patients’quality of *** complications of GEP-NENs,primarily tricuspid and pulmonary valve disease,and right-sided heart failure,are the leading cause of death,even compared to metastatic *** SUMMARY We present a case of a 35-year-old patient with progressive dyspnea,back pain,polyneuropathic leg pain,and nocturnal diarrhea lasting for a decade before the diagnosis of neuroendocrine carcinoma of unknown primary with extensive liver *** the initial presentation,serum biomarkers were not evaluated,and the patient received five cycles of doxorubicin,which he did not tolerate well,so he refused further therapy and was lost to *** 10 years,he presented to the emergency room with signs and symptoms of right-sided heart *** markers,serum chromogranin A,and urinary 5-hydroxyindoleacetic acid were extremely elevated(900 ng/mL and 2178µmol/L),and transabdominal ultrasound confirmed hepatic *** tomo-graphy(CT)showed liver metastases up to 6 cm in diameter and metastases in mesenteric lymph nodes and ***,an Octreoscan showed lesions in the heart,thoracic spine,duodenum,and ascendent colon.A standard trans-thoracic echocardiogram confirmed findings of carcinoid heart *** patient was not a candidate for valve *** started octreotide acetate treatment,and the dose escalated to 80 mg IM *** biochemical CONCLUSION Carcinoid heart disease occurs with carcinoid syndrome related to advanced neuroendocrine tumors,usually with liver metastases,which manifests as right-sided heart valve dysfunction leading to right-sided heart *** heart disease and tumor burden are major prognostic factors of poor surviva

关键词： Gastroenteropancreatic neuroendocrine neoplasms Carcinoid syndrome Carcinoid heart disease Diagnosis Treatment Case report

Molecular insights of exercise therapy in disease prevention and treatment

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Signal Transduction and Targeted Therapy 2024年第6期9卷 2564-2597页

作者： David Walzik Tiffany Y.Wences Chirino Philipp Zimmer Niklas Joisten Division of Performance and Health(sports medicine) Institute for Sport and Sport ScienceTU Dortmund University44227 DortmundNorth Rhine-WestphaliaGermany Division of exercise and Movement Science Institute for Sport ScienceUniversity of Göttingen37075 GöttingenLower SaxonyGermany

Despite substantial evidence emphasizing the pleiotropic benefits of exercise for the prevention and treatment of various diseases,the underlying biological mechanisms have not been fully *** exercise benefits have been attributed to signaling molecules that are released in response to exercise by different tissues such as skeletal muscle,cardiac muscle,adipose,and liver *** signaling molecules,which are collectively termed exerkines,form a heterogenous group of bioactive substances,mediating inter-organ crosstalk as well as structural and functional tissue *** scientific endeavors have focused on identifying and characterizing new biological mediators with such ***,some investigations have focused on the molecular targets of exerkines and the cellular signaling cascades that trigger adaption processes.A detailed understanding of the tissue-specific downstream effects of exerkines is crucial to harness the health-related benefits mediated by exercise and improve targeted exercise programs in health and ***,we review the current in vivo evidence on exerkine-induced signal transduction across multiple target tissues and highlight the preventive and therapeutic value of exerkine signaling in various *** emphasizing different aspects of exerkine research,we provide a comprehensive overview of(i)the molecular underpinnings of exerkine secretion,(ii)the receptor-dependent and receptor-independent signaling cascades mediating tissue adaption,and(iii)the clinical implications of these mechanisms in disease prevention and treatment.

关键词： prevention treatment collective

Increased number of symptoms during the acute phase of SARS-CoV-2 infection in athletes is associated with prolonged time to return to full sports performance—AWAREⅧ

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Journal of Sport and Health Science 2024年第3期13卷 280-287,I0001页

作者： Carolette Snyders Marlise Dyer Nicola Sewry Esme Jordaan Martin Schwellnus Sport Exercise Medicine and Lifestyle Institute(SEMLI)Faculty of Health SciencesUniversity of PretoriaPretoria 0083South Africa Section sports medicine Faculty of Health SciencesUniversity of PretoriaPretoria 0083South Africa IOC Research centre of South Africa Pretoria 0083South Africa Biostatistics Unit South African Medical Research CouncilTygerberg 7505South Africa Statistics and Population Studies Department University of the Western CapeCape Town 7535South Africa

Purpose The aim of the study was to identify factors associated with prolonged time to return to full performance(RTFP)in athletes with recent severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)*** Prospective cohort study with cross sectional analysis.A total of 84 athletes with confirmed SARS-CoV-2 infection assessed at a coronavirus disease 2019 recovery clinic gave a history of age,sex,type/level of sport,co-morbidities,pre-infection training hours,and 26 acute SARS-CoV-2 symptoms from 3 categories(“nose and throat”,“chest and neck”,and“whole body”/systemic).Data on days to RTFP were obtained by structured *** associated with RTFP were demographics,sport participation,history of co-morbidities,pre-infection training history,and acute symptoms(type,number).Outcomes were:(a)days to RTFP(median,interquartile range(IQR))in asymptomatic(n=7)and symptomatic athletes(n=77),and(b)hazard ratios(HRs;95%confidence interval)for symptomatic athletes with *** a factor(univariate,multiple models).HR0.05).Factors associated with prolonged RTFP(univariate models)were:females(HR=0.57;p=0.014),endurance athletes(HR=0.41;p<0.0001),co-morbidity number(HR=0.75;p=0.001),and respiratory disease history(HR=0.54;p=0.026).In symptomatic athletes,prolonged RTFP(multiple models)was significantly associated with increased“chest and neck”(HR=0.85;p=0.017)and“nose and throat”(HR=0.84;p=0.013)symptoms,but the association was more profound between prolonged RFTP and increased total number of“all symptoms”(HR=0.91;p=0.001)and“whole body”/systemic(HR=0.82;p=0.007)*** A larger number of total symptoms and specifically“whole body”/systemic symptoms during the acute phase of SARS-CoV-2 infection in athletes is associated with prolonged RTFP.

关键词： Athletes COVID-19 Performance Recovery Return to play

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Interactions between myoblasts and macrophages under high glucose milieus result in inflammatory response and impaired insulin sensitivity

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World Journal of Diabetes 2024年第7期15卷 1589-1602页

作者： Wei Luo Yue Zhou Li-Ying Wang Lei Ai Department of sports and Health Sciences Nanjing Sport InstituteNanjing 210014Jiangsu ProvinceChina Department of exercise Physiology Beijing Sport UniversityBeijing 100084China Department of sports Physiology Research Jiangsu Research Institute of Sports ScienceNanjing 210033Jiangsu ProvinceChina

BACKGROUND Skeletal muscle handles about 80% of insulin-stimulated glucose uptake and become the major organ occurring insulin resistance(IR).Many studies have confirmed the interactions between macrophages and skeletal muscle regulated the inflammation and regeneration of skeletal ***,despite of the decades of research,whether macrophages infiltration and polarization in skeletal muscle under high glucose(HG)milieus results in the development of IR is yet to be elucidated.C2C12 myoblasts are well-established and excellent model to study myogenic regulation and its responses to *** exploration of macrophages'role in myoblasts IR and the dynamics of their infiltration and polarization is *** To evaluate interactions between myoblasts and macrophages under HG,and its effects on inflammation and IR in skeletal *** We detected the polarization status of macrophages infiltrated to skeletal muscles of IR mice by hematoxylin and eosin and immunohistochemical ***,we developed an in vitro co-culture system to study the interactions between myoblasts and macrophages under HG *** effects of myoblasts on macrophages were explored through morphological observation,CCK-8 assay,Flow Cytometry,and enzyme-linked immunosorbent *** mediation of macrophages to myogenesis and insulin sensitivity were detected by morphological observation,CCK-8 assay,Immunofluorescence,and 2-NBDG *** The F4/80 and co-localization of F4/80 and CD86 increased,and the myofiber size decreased in IR group(P0.8).In McM+HG group,F4/80+CD86+CD206-cells,monocyte chemoattractant protein 1,TNFα,IL-1βand IL-6 were increased,and F4/80+CD206+CD86-cells and IL-10 were decreased compared with Mc+HG group and McM group(P0.8).Compered to M group,myotube area,myotube n

关键词： Macrophages phenotype Myoblasts Cross-talk Glucose toxicity Chronic inflammation Insulin sensitivity

Identification of key genes and signaling pathways based on transcriptomic studies of aerobic and resistance training interventions in sarcopenia in SAMP8 mice

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sports medicine and Health Science 2024年第4期6卷 358-369页

作者： Lunyu Li Xiaotian Guan Ying Huang Bo Qu Binyu Yao Haili Ding School of sports medicine and Health Chengdu Sport UniversityChengduChina Institute of sports medicine and Health Chengdu Sport UniversityChengduChina

We examined the effects of resistance and aerobic exercise on the gene expression and biometabolic processes of aging skeletal muscle in senescence-accelerated mouse/prone 8 mice,a model of sarcopenia,and compared them with senescence-accelerated mouse/resistant 1 mice acting as *** found that exercise improved muscle strength,endurance,fiber size,also modulated genes and pathways related to synaptic transmission,potassium transport,JAK-STAT signaling,and PI3K-Akt *** results suggested that BDNF,JAK2,RhoC,Myh6,Stat5a,Tnnc1,and other genes may mediate the beneficial effects of exercise on sarcopenia through these pathways.

关键词： Resistance training Aerobic training Sarcopenia Transcriptome

Electrocardiographic characteristics of pediatric and adolescent football players

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sports medicine and Health Science 2024年第2期6卷 179-184页

作者： Maria Doumparatzi Panagiota Sotiriou Asterios Deligiannis Evangelia Kouidi sports medicine Laboratory School of Physical Education and Sports ScienceAristotle University of ThessalonikiThermiGR57001Greece

Electrocardiographic characteristics of children and adolescents present differences compared to *** aim of our work was to study electrocardiograms(ECGs)of football male players from childhood to late adolescence and examine if the ECG parameters are influenced by systematic *** thousand fifty-four football players participated and formed four *** A included 89 players aged 5–7 years,group B 353 players aged 8–11 years,group C consisted of 355 football players 12-15 yearsold and group D of 257 players with 16–18 years of *** participants underwent preparticipation screening,including 12-lead surface *** rate(HR),PR,RR,QRS,QT,QTc intervals,QT dispersion(QTdisp)and QRS axis were *** ECGs were evaluated according to the current preparticipation cardiac screening guidelines,that refer to athletes aged 12–35 years and do not include pediatric *** percent of the participants presented an ECG *** D obtained the lowest values of HR,QTc and the highest of PR,RR,QRS,QT intervals and QTdisp,whereas no differences in QRS axis were *** Right Bandle Branch Block(RBBB)was the most frequent ECG peculiarity,detected in 7.3%of the *** of training were statistically significantly correlated to HR,PR,RR,QRS and QT *** conclusion,guidelines for ECG interpretation of athletes in childhood,early and late adolescence are needed.

关键词： exercise Children Adolescents Electrocardiogram Soccer