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1.
Small Methods ; : e2400030, 2024 May 08.
Artigo em Inglês | MEDLINE | ID: mdl-38716631

RESUMO

High-quality, low-cost, and rapid detection is essential for the society to reopen the economy during the critical period of transition from Coronavirus Disease 2019 (COVID-19) pandemic response to pandemic control. In addition to performing sustainable and target-driven tracking of SARS-CoV-2, conducting comprehensive surveillance of variants and multiple respiratory pathogens is also critical due to the frequency of reinfections, mutation immune escape, and the growing prevalence of the cocirculation of multiple viruses. By utilizing a 0.05 cents wax interface, a Stable Interface assisted Multiplex Pathogenesis Locating Estimation in Onepot (SIMPLEone) using nested RPA and CRISPR/Cas12a enzymatic reporting system is successfully developed. This smartphone-based SIMPLEone system achieves highly sensitive one-pot detection of SARS-CoV-2 and its variants, or multiple respiratory viruses, in 40 min. A total of 89 clinical samples, 14 environmental samples, and 20 cat swab samples are analyzed by SIMPLEone, demonstrating its excellent sensitivity (3-6 copies/reaction for non-extraction detection of swab and 100-150 copies/mL for RNA extraction-based assay), accuracy (>97.7%), and specificity (100%). Furthermore, a high percentage (44.2%) of co-infection cases are detected in SARS-CoV-2-infected patients using SIMPLEone's multiplex detection capability.

2.
J Agric Food Chem ; 72(1): 794-809, 2024 Jan 10.
Artigo em Inglês | MEDLINE | ID: mdl-38131329

RESUMO

This study aimed to investigate the transmembrane transport behavior and structure-activity relationships of various dietary flavonoids in the presence of dietary lipids derived from different sources in vitro. Results revealed that the digestion products of soybean oil (SOED) and lard (LOED) augmented the apparent permeability coefficients of most dietary flavonoids, and SOED exhibited higher transport compared with LOED. The structural properties of flavonoids and the potential interactions between fatty acids in these digestion products and flavonoids may influence the outcomes. 3D quantitative structure-activity relationship analyses revealed that incorporating small-volume groups at position 8 of the A-ring augmented the transmembrane transfer of flavonoids in the LOED system compared with the control group. By contrast, the integration of hydrophobic groups at position 5 of the A-ring and hydrogen bonding acceptor groups at position 6 of the A-ring enhanced the transmembrane transportation of flavonoids in the SOED system. Molecular dynamics simulations revealed that the SOED system may facilitate the interactions with flavonoids to form more stable and compact fatty acid-flavonoid complexes compared to the LOED system. These findings may provide valuable insights into flavonoid absorption to facilitate the development and utilization of functional foods or dietary supplements based on dietary flavonoids.


Assuntos
Flavonoides , Polifenóis , Relação Estrutura-Atividade , Flavonoides/química , Relação Quantitativa Estrutura-Atividade , Simulação de Dinâmica Molecular , Lipídeos
3.
Nutrients ; 15(23)2023 Nov 23.
Artigo em Inglês | MEDLINE | ID: mdl-38068753

RESUMO

Multiple studies have indicated that distinct metabolites are involved in the occurrence and development of osteopenia (ON) and osteoporosis (OP); however, these metabolites in OP and ON have not yet been classified and standardized. This systematic review and meta-analysis included 21 articles aiming to investigate the distinct metabolites in patients with ON and OP. The quality of the included articles was generally high; seventeen studies had >7 stars, and the remaining four received 6 stars. This systematic review showed that three metabolites (phosphatidylcholine (PC) (lipid metabolites), galactose (carbohydrate metabolites), and succinic acid (other metabolites)) increased, four (glycylglycine (gly-gly), cystine (amino acids), sphingomyelin (SM) (lipid metabolites) and glucose (carbohydrate metabolites)) decreased, and five (glutamine, hydroxyproline, taurine (amino acids), lysophosphatidylcholine (LPC) (lipid metabolites), and lactate (other metabolites)) had conflicting directions in OP/ON. The results of the meta-analysis show that gly-gly (MD = -0.77, 95%CI -1.43 to -0.11, p = 0.02) and cystine (MD = -5.52, 95%CI -7.35 to -3.68, p < 0.00001) decreased in the OP group compared with the healthy control group. Moreover, LPC (MD = 1.48, 95%CI 0.11 to 2.86, p = 0.03) increased in the OP group compared with the healthy control group. These results indicate that distinct metabolites were associated with ON and OP, which could be considered a predictor for OP.


Assuntos
Doenças Ósseas Metabólicas , Osteoporose , Humanos , Cistina , Osteoporose/epidemiologia , Doenças Ósseas Metabólicas/complicações , Aminoácidos , Lisofosfatidilcolinas , Carboidratos
4.
Food Chem X ; 20: 100994, 2023 Dec 30.
Artigo em Inglês | MEDLINE | ID: mdl-38144778

RESUMO

Bioavailability plays a key role for flavonoids to exert their bioactivities. This study investigated the transmembrane transport behavior and structure-activity of dietary flavonoids. Results showed that the apparent permeability coefficients of some flavonoids could be significantly increased when digestion products from rice flour (RD) or wheat flour (WD) are present (p < 0.05), especially in the WD, potentially due to higher reducing sugar (p < 0.05). 3D-QSAR revealed that the hydrogen bond acceptor groups at positions 5 and 6 of ring A, small-volume groups at position 3', hydrophobic groups at position 4', and large-volume groups at position 5' of ring B increased the transmembrane transport of flavonoids in the WD. A hydrogen bond donor group at position 4' of ring B enhanced the transmembrane transport of flavonoid compounds in the RD. These findings contribute to our comprehensive understanding of flavonoid absorption within the context of intestinal carbohydrate digestion.

5.
Nutrients ; 15(19)2023 Sep 28.
Artigo em Inglês | MEDLINE | ID: mdl-37836475

RESUMO

(1) Many studies have attempted to utilize metabolomic approaches to explore potential biomarkers for the early detection of osteoarthritis (OA), but consistent and high-level evidence is still lacking. In this study, we performed a systematic review and meta-analysis of differential small molecule metabolites between OA patients and healthy individuals to screen promising candidates from a large number of samples with the aim of informing future prospective studies. (2) Methods: We searched the EMBASE, the Cochrane Library, PubMed, Web of Science, Wan Fang Data, VIP Date, and CNKI up to 11 August 2022, and selected relevant records based on inclusion criteria. The risk of bias was assessed using the Newcastle-Ottawa quality assessment scale. We performed qualitative synthesis by counting the frequencies of changing directions and conducted meta-analyses using the random effects model and the fixed-effects model to calculate the mean difference and 95% confidence interval. (3) Results: A total of 3798 records were identified and 13 studies with 495 participants were included. In the 13 studies, 132 kinds of small molecule differential metabolites were extracted, 58 increased, 57 decreased and 17 had direction conflicts. Among them, 37 metabolites appeared more than twice. The results of meta-analyses among four studies showed that three metabolites increased, and eight metabolites decreased compared to healthy controls (HC). (4) Conclusions: The main differential metabolites between OA and healthy subjects were amino acids (AAs) and their derivatives, including tryptophan, lysine, leucine, proline, phenylalanine, glutamine, dimethylglycine, citrulline, asparagine, acetylcarnitine and creatinine (muscle metabolic products), which could be potential biomarkers for predicting OA.


Assuntos
Osteoartrite , Humanos , Estudos Prospectivos , Osteoartrite/diagnóstico , Osteoartrite/metabolismo , Biomarcadores/metabolismo , Viés , Nível de Saúde
7.
Neurobiol Dis ; 179: 106061, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36870457

RESUMO

Mounting evidence indicates complex interaction between the immune system and the nervous system, challenging the traditional view about the immune privilege of the brain. Innate lymphoid cells (ILCs) and innate-like T cells are unique families of immune cells that functionally mirror traditional T cells but may function via antigen- and T cell antigen receptor (TCR)-independent mechanisms. Recent work indicates that various ILCs and innate-like T cell subsets are present in the brain barrier tissue, where they play important roles in regulating brain barrier integrity, brain homeostasis and cognitive function. In this review, we discuss recent advances in understanding the intricate roles for innate and innate-like lymphocytes in regulating brain and cognitive function.


Assuntos
Imunidade Inata , Linfócitos , Linfócitos T , Encéfalo , Cognição
8.
J Ethnopharmacol ; 310: 116387, 2023 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-36948265

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Rhus chinensis Mill. is a species of the genus Rhus belonging to the family Anacardiaceae. Its fruits used to treat/prevent liver related diseases (e.g., jaundice and hepatitis) in folk medicine. Otherwise, the effects and underlying mechanisms of the fruits on the prevention of isoniazid and rifampicin-caused liver injury have not been investigated. AIM OF THE STUDY: To study the preventive effects and mechanisms of the Rhus chinensis Mill. fruits on isoniazid and rifampicin-caused liver injury. MATERIALS AND METHODS: This experiment was based on rifampicin (75 mg/kg/day) and isoniazid (75 mg/kg/day)-induced liver damage model to explain the pharmacological effects of Rhus chinensis Mill. fruits. The prevention of the extract from Rhus chinensis Mill. fruits on isoniazid and rifampicin-caused liver injury were evaluated using biochemical parameters, histopathological analysis, and immunofluorescence technique. Apart from that, the potential molecular mechanisms were elucidated by analyzing the expression of such crucial proteins participated in oxidative stress, apoptosis, and bile acid transport. RESULTS: The extract from Rhus chinensis Mill. fruits significantly reduced the levels of ALT, AST, TBIL, ALP and MDA. Besides, the extract, especially 800 mg/kg b.w., was remarkably decreased the content of TNF-α,IL-6 and IL-1ß, restored the levels of GSH and SOD. The results of Western blot also presented that the extract could activate the Nrf2 protein pathway and inhibit the expression of CYP2E1 to reduce oxidative stress. Meanwhile, the extract significantly up-regulated the expressions of BSEP and Mrp2 to regulate the transport of bile acid, and alleviated the cellular apoptosis via adjusting the expression of Bax and Bcl-2 proteins. CONCLUSIONS: Rhus chinensis Mill. fruits can prevent the liver injury induced by isoniazid and rifampicin in mice through adjusting the expressions of multiple proteins in oxidative stress, apoptosis, and bile acid transport pathways. This paper may provide scientific basis for the fruits as a Chinese medicine to prevent/cure liver injury.


Assuntos
Doença Hepática Induzida por Substâncias e Drogas , Rhus , Camundongos , Animais , Isoniazida/toxicidade , Isoniazida/metabolismo , Rifampina/metabolismo , Rhus/química , Frutas , Fígado , Estresse Oxidativo , Ácidos e Sais Biliares/metabolismo , Apoptose , Doença Hepática Induzida por Substâncias e Drogas/tratamento farmacológico , Doença Hepática Induzida por Substâncias e Drogas/prevenção & controle , Doença Hepática Induzida por Substâncias e Drogas/metabolismo
9.
Food Funct ; 14(2): 1148-1159, 2023 Jan 23.
Artigo em Inglês | MEDLINE | ID: mdl-36601890

RESUMO

Chinese sumac (Rhus chinensis Mill.) fruit is a traditional Chinese medicinal material that can be consumed daily. This study aimed to investigate whether the ethanol extract of sumac fruits can ameliorate monosodium urate-induced gouty arthritis in rats from the perspective of inflammation. Results showed that the extract of Chinese sumac fruits can obviously prevent monosodium urate-induced gouty arthritis in rats. Further analyses revealed that this bioactivity may be mainly achieved by modulating several inflammatory pathways, including NLRP3, NF-κB, and MAPK pathways. In addition, the extract can also improve oxidative stress by reducing the levels of malondialdehyde and myeloperoxidase, increasing the contents of superoxide dismutase and glutathione. In conclusion, this study revealed that the Chinese sumac fruit can alleviate the pathological symptoms of gouty arthritis by inhibiting inflammatory responses and oxidative stress, which can provide a theoretical basis for the use of Chinese sumac fruits as a Chinese herbal medicine and health food for the prevention and treatment of gouty arthritis.


Assuntos
Artrite Gotosa , Rhus , Animais , Ratos , Artrite Gotosa/induzido quimicamente , Artrite Gotosa/metabolismo , Artrite Gotosa/patologia , Frutas/metabolismo , Extratos Vegetais/farmacologia , Ácido Úrico
10.
Foods ; 11(24)2022 Dec 12.
Artigo em Inglês | MEDLINE | ID: mdl-36553757

RESUMO

Prinsepia utilis Royle (P. utilis) is commonly used as a food ingredient and herbal medicine according to folk records, yet little research has been done on the seed shell, a processing waste. The aim of this study was to investigate the distribution of polyphenolic components and the tyrosinase activation activity of different extracts from the seed shell by UHPLC-ESI-HRMS/MS, in vitro tyrosinase activity assay, molecular docking and molecular dynamics. A total of 16 phytochemicals were identified, of which (+)-catechin and (-)-epicatechin were the major polyphenolic compounds. Both the esterified and insoluble bound polyphenols exhibited tyrosinase activation activity, and the esterified polyphenols showed better tyrosinase activation activity. (+)-Catechin and (-)-epicatechin might be the main activators of tyrosinase, both of which may act as substrate to affect tyrosinase activity. By molecular docking and molecular dynamics simulation studies, (+)-catechin and (-)-epicatechin can be efficiently and stably bound to the tyrosinase active site through hydrogen bonds, van der Waals forces and π-bonds. The results of this study may not only provide a scientific basis for exploring P. utilis seed shell as a potential activator of tyrosinase, but also contribute to the high value utilization of P. utilis processing by-products.

11.
Nat Immunol ; 23(12): 1714-1725, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-36411380

RESUMO

Increasing evidence indicates close interaction between immune cells and the brain, revising the traditional view of the immune privilege of the brain. However, the specific mechanisms by which immune cells promote normal neural function are not entirely understood. Mucosal-associated invariant T cells (MAIT cells) are a unique type of innate-like T cell with molecular and functional properties that remain to be better characterized. In the present study, we report that MAIT cells are present in the meninges and express high levels of antioxidant molecules. MAIT cell deficiency in mice results in the accumulation of reactive oxidative species in the meninges, leading to reduced expression of junctional protein and meningeal barrier leakage. The presence of MAIT cells restricts neuroinflammation in the brain and preserves learning and memory. Together, our work reveals a new functional role for MAIT cells in the meninges and suggests that meningeal immune cells can help maintain normal neural function by preserving meningeal barrier homeostasis and integrity.


Assuntos
Células T Invariantes Associadas à Mucosa , Animais , Camundongos , Encéfalo , Meninges , Cognição , Estresse Oxidativo
12.
Nutrients ; 14(19)2022 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-36235742

RESUMO

This study focused on the preventive effects of the extracts of Rhus chinensis Mill. (RCM) fruits on cholestasis induced by 3,5-diethoxycarbonyl-1,4-dihydrocollidine (DDC) in mice. The results showed that RCM extracts could significantly ameliorate DDC-induced cholestasis via multiple mechanisms, including (1) alleviating liver damage via enhancing antioxidant capacity, such as increasing the contents of glutathione, superoxide dismutase, and catalase and inhibiting the levels of malondialdehyde; (2) preventing liver inflammation by suppressing NF-κB pathway and reducing proinflammatory cytokines secretion (e.g., tumor necrosis factor-α, interleukin-1ß, and interleukin-6); (3) inhibiting liver fibrosis and collagen deposition by regulating the expression of transforming growth factor-ß and α-smooth muscle actin; (4) modulating abnormal bile acid metabolism through increasing the expression of bile salt export pump and multidrug resistance-associated protein 2. This study was the first to elucidate the potential preventive effect of RCM extracts on DDC-induced cholestasis in mice from multiple pathways, which suggested that RCM fruits could be considered as a potential dietary supplement to prevent cholestasis.


Assuntos
Colestase , Extratos Vegetais , Rhus , Membro 11 da Subfamília B de Transportadores de Cassetes de Ligação de ATP/metabolismo , Actinas/metabolismo , Animais , Antioxidantes/metabolismo , Ácidos e Sais Biliares/metabolismo , Catalase/metabolismo , Colestase/induzido quimicamente , Colestase/prevenção & controle , Colágeno/metabolismo , Frutas/metabolismo , Glutationa/metabolismo , Inflamação/induzido quimicamente , Inflamação/metabolismo , Inflamação/prevenção & controle , Interleucina-1beta/metabolismo , Interleucina-6/metabolismo , Fígado/metabolismo , Malondialdeído/metabolismo , Camundongos , NF-kappa B/metabolismo , Estresse Oxidativo , Extratos Vegetais/farmacologia , Piridinas/efeitos adversos , Superóxido Dismutase/metabolismo , Fatores de Crescimento Transformadores/metabolismo , Fator de Necrose Tumoral alfa/metabolismo
13.
Antioxidants (Basel) ; 11(10)2022 Sep 21.
Artigo em Inglês | MEDLINE | ID: mdl-36290596

RESUMO

The aim of this study was to investigate the phenolic profiles, antioxidant activities and α-glycosidase inhibitory activities of three different phenolic fractions from water caltrop (Trapa quadrispinosa Roxb.) husk and to further explore the predominant compounds and their mechanisms on α-glycosidase inhibition by virtual screening and molecular dynamics. A total of 29 substances were identified and quantified in this study. Tannins were the main constituents of water caltrop husk extract. All of the free phenolic (FP), esterified phenolic (EP) and insoluble-bound phenolic (BP) fractions exhibited good antioxidant activities, and the BP had the highest radical scavenging ability with IC50 values of 0.82 ± 0.12 µg/mL (ABTS) and 1.15 ± 0.02 µg/mL (DPPH), respectively (p < 0.05). However, compared with the EP and BP, the FP showed the strongest inhibition towards the α-glycosidase and the IC50 value of FP was 1.43 ± 0.12 µg/mL. The 1,2,6-trigalloylglucose and α-glycosidase complex had better root mean square deviations (RMSD) stability via molecular dynamics simulation study. Results obtained from this study may provide a good potential natural resource for the improvement of oxidative stress injury and blood glucose control in diabetes mellitus, which could expand the use of water caltrop husk and improve its economic value.

14.
Adv Exp Med Biol ; 1365: 135-148, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35567745

RESUMO

The interaction between the immune system and the nervous system remains an intriguing enigma. Recent studies indicate that innate lymphoid cells (ILCs), a unique family of innate effector cells, participate in intense cross talk with the nervous system. In the mucosal barrier sites, ILCs have been found to co-localize with neurons, nerves, glial cell projectors, and neuroendocrine cells. The cross talk between ILCs and peripheral nervous system orchestrates mucosal homeostasis and immunity. In addition, the barrier tissues of the central nervous system (CNS) also provide conductive microenvironment for ILC development and maintenance. Activities of CNS-associated ILCs impact the outcome of various CNS disorders. In this chapter, we review and discuss the intricate and bidirectional interaction between ILCs and nervous system.


Assuntos
Imunidade Inata , Linfócitos , Homeostase , Sistema Imunitário , Sistema Nervoso
15.
Psychophysiology ; 59(4): e13992, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-34951031

RESUMO

Previous study has found that previously learned meaning affects the learning of new meaning for known second language (L2) words. However, it is not clear whether learning a new meaning also affects the previously learned meaning and whether this effect is modulated by the semantic similarity between them. The current study aimed to explore this issue using event-related potential technique. A word learning task was used, in which Chinese-English bilinguals were required to learn a new meaning that was semantically related or unrelated to the previously learned meaning of familiar L2 words and judge the semantic relatedness between the trained word and a probe word in the same trial. The results showed that both the N400 and late-positive component (LPC) amplitudes for probe words in the unrelated new meaning condition were significantly different from the unlearned condition, which suggests learning new meaning interferes with accessing the previously learned meaning. Moreover, significantly less positive LPC was found in the unrelated new meaning condition relative to the related new meaning condition, showing a mediation of semantic similarity in the perturbation effect. We conclude that learning L2 new meaning has a backward interference effect on accessing the previously learned meaning and this effect is modulated by semantic similarity. These findings provide supporting evidence for the interaction mechanism of learning the multiple meanings of L2 ambiguous words.


Assuntos
Multilinguismo , Semântica , Eletroencefalografia , Potenciais Evocados , Feminino , Humanos , Aprendizagem , Masculino
16.
Lab Chip ; 22(4): 697-708, 2022 02 15.
Artigo em Inglês | MEDLINE | ID: mdl-34923580

RESUMO

Hereditary hearing loss is one of the most common human neurosensory disorders, and there is a great need for early intervention methods such as genetically screening newborns. Single nucleotide polymorphisms (SNPs) are the major genetic targets for hearing-loss screening. In this study, a fully integrated SNP genotyping system was constructed to identify hereditary hearing loss-related genetic markers from human whole blood. The entire detection process, including blood cell lysis, nucleic acid extraction, the reaction mixture distribution, the chambers sealing and the two-colour multiplex competitive allele-specific polymerase chain reaction (KASP), can be automatically conducted in a self-contained cassette within 3 hours. To critically evaluate the performance of the system, its specificity, sensitivity and stability were assessed. Then, 13 clinical samples were genotyped with this fluidic cassette system to detect seven hotspot deafness-associated mutations in three genes (MT-RNR1, GJB2 and SLC26A4). The detection results of the cassette system were 100% concordant with those obtained by Sanger sequencing, proving its accuracy in the genetic screening of inherited hearing loss.


Assuntos
Surdez , Perda Auditiva , Conexinas/genética , Análise Mutacional de DNA/métodos , Surdez/diagnóstico , Surdez/genética , Genótipo , Perda Auditiva/diagnóstico , Perda Auditiva/genética , Humanos , Recém-Nascido , Mutação , Transportadores de Sulfato/genética
17.
Nutrients ; 13(12)2021 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-34960032

RESUMO

Hepatic glycolipid metabolism disorder is considered as one of the key factors in the pathogenesis of many chronic diseases. The objective of this study was to investigate the protective effect and underlying mechanisms of Rhus chinensis Mill. fruits against hepatic glycolipid metabolic disorders in rats induced by a high fat/high sugar diet. Results showed that ethanol extract, especially at a dose of 600 mg/kg b.w., could effectively ameliorate glycolipid metabolic disorders in rats. The biochemical indexes, including CAT, GSH and HOMA-IR, were significantly improved by the administration of ethanol extract. Immunohistochemistry and Western blot analysis revealed that ethanol extract up-regulated the expression levels of PI3K/AKT, PPAR-α, and the phosphorylation of IRS1 and AMPK proteins, and down-regulated the expressions of SREBP-1 and FAS proteins in the liver, which are closely related to hepatic glycolipid metabolism. Those findings suggested that R. chinensis Mill. fruits could be developed as functional foods and/or nutraceuticals for preventing or controlling some chronic diseases related to hepatic glycolipid metabolism disorder.


Assuntos
Frutas , Glicolipídeos/metabolismo , Hepatopatias/tratamento farmacológico , Fígado/efeitos dos fármacos , Extratos Vegetais/farmacologia , Rhus/química , Adiposidade , Animais , Dieta Hiperlipídica/efeitos adversos , Carboidratos da Dieta/administração & dosagem , Carboidratos da Dieta/efeitos adversos , Relação Dose-Resposta a Droga , Regulação da Expressão Gênica/efeitos dos fármacos , Resistência à Insulina , Fígado/metabolismo , Masculino , Extratos Vegetais/química , Ratos , Ratos Sprague-Dawley
18.
Aging Cell ; 20(10): e13470, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34547174

RESUMO

Aging is paradoxically associated with a deteriorated immune defense (immunosenescence) and increased basal levels of tissue inflammation (inflammaging). The lung is particularly sensitive to the effects of aging. The immune cell mechanisms underlying physiological lung aging remain poorly understood. Here we reveal that aging leads to increased interferon signaling and elevated concentrations of chemokines in the lung, which is associated with infiltration of monocytes into the lung parenchyma. scRNA-seq identified a novel Type-1 interferon signaling dependent monocyte subset (MO-ifn) that upregulated IFNAR1 expression and exhibited greater transcriptomal changes with aging than the other monocytes. Blockade of type-1 interferon signaling by treatment with anti-IFNAR1 neutralizing antibodies rapidly ablated MO-ifn cells. Treatment with anti-IFNAR1 antibodies also reduced airway chemokine concentrations and repressed the accumulation of the overall monocyte population in the parenchyma of the aged lung. Together, our work suggests that physiological aging is associated with increased basal level of airway monocyte infiltration and inflammation in part due to elevated type-1 interferon signaling.


Assuntos
Interferon Tipo I/metabolismo , Pulmão/patologia , Monócitos/metabolismo , Transcriptoma/fisiologia , Envelhecimento , Animais , Humanos , Camundongos , Transdução de Sinais
19.
J Neuroinflammation ; 18(1): 152, 2021 Jul 06.
Artigo em Inglês | MEDLINE | ID: mdl-34229727

RESUMO

BACKGROUND: The immune pathways in Alzheimer's disease (AD) remain incompletely understood. Our recent study indicates that tissue-resident group 2 innate lymphoid cells (ILC2) accumulate in the brain barriers of aged mice and that their activation alleviates aging-associated cognitive decline. The regulation and function of ILC2 in AD, however, remain unknown. METHODS: In this study, we examined the numbers and functional capability of ILC2 from the triple transgenic AD mice (3xTg-AD) and control wild-type mice. We investigated the effects of treatment with IL-5, a cytokine produced by ILC2, on the cognitive function of 3xTg-AD mice. RESULTS: We demonstrate that brain-associated ILC2 are numerically and functionally defective in the triple transgenic AD mouse model (3xTg-AD). The numbers of brain-associated ILC2 were greatly reduced in 7-month-old 3xTg-AD mice of both sexes, compared to those in age- and sex-matched control wild-type mice. The remaining ILC2 in 3xTg-AD mice failed to efficiently produce the type 2 cytokine IL-5 but gained the capability to express a number of proinflammatory genes. Administration of IL-5, a cytokine produced by ILC2, transiently improved spatial recognition and learning in 3xTg-AD mice. CONCLUSION: Our results collectively indicate that numerical and functional deficiency of ILC2 might contribute to the cognitive impairment of 3xTg-AD mice.


Assuntos
Doença de Alzheimer/genética , Doença de Alzheimer/imunologia , Imunidade Inata/genética , Imunidade Inata/imunologia , Linfócitos/imunologia , Animais , Células Cultivadas , Feminino , Masculino , Camundongos , Camundongos da Linhagem 129 , Camundongos Transgênicos
20.
Wei Sheng Yan Jiu ; 50(4): 586-608, 2021 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-34311829

RESUMO

OBJECTIVE: To investigate the effect of sleep disorders on hypertension in oil workers and its mediating effect analysis. METHODS: Between June and September 2019, 1420 workers aged 20-60 years(745 males and 675 females; 384 aged 30 years, 563 aged 30-45 years and 473 aged 45 years) from six oilfield bases in Karamay City, Xinjiang Uygur Autonomous Region were surveyed using a two-stage randomized whole-group sampling method. Their current conditions, and the information on gender, age, ethnicity, personal monthly income, education level, job title, smoking, alcohol consumption, height, weight, and shift work of the oil workers were investigated by the basic questionnaire. The Pittsburgh Sleep Index was used to assess the sleep status, and the Logistic regression model was used to analyze the influencing factors of hypertension, and the Process program(version 3.3) was used to conduct the mediating effect model test. RESULTS: (1) The detection rate of sleep disorders was 52.5% and the prevalence of hypertension was 16.3%, with 21.6%(161) higher in women than 10.5%(71) in men(χ~2=31.877, P& lt; 0.001). The prevalence of hypertension increased with increasing age and body mass index(BMI)(χ~2=25.117, P& lt; 0.001), 20.1%(149) in the sleep disorder group were higher than 12.2%(83) in the non-sleep disorder group(χ~2=16.113, P& lt; 0.001). (2) After adjusting for gender, age, ethnicity, education, personal monthly income, smoking, alcohol consumption, shift work and BMI, sleep disorders(OR=1.686, 95% CI 1.232-2.308), gender(OR=1.565, 95% CI 1.035-2.367), age(OR_(30-45)=1.710, 95% CI 1.085-2.697; OR_(& gt; 45)=1.717, 95% CI 1.055-2.797), shift work(OR=2.698, 95% CI 1.889-3.855), BMI(OR_(24.0-27.9)=2.557, 95% CI 1.736-3.765; OR_(≥28.0)=4.001, 95% CI 2.553-6.318) increased the risk of hypertension. (3) The result of stratified analysis showed that with age(OR_(30-45)=1.642, 95% CI 1.019-2.645; OR_(& gt; 45)=1.998, 95% CI 1.223-3.263) and BMI(OR_(24.0-27.9)=1.652, 95% CI 1.079-2.528; OR_(≥28.0)=2.259, 95% CI 1.165-4.381) increased, the risk of hypertension due to sleep disorders increased. Sleep disorders(OR=2.002, 95% CI 1.336-2.936) were also risk factors for hypertension in the shift work group. (4) The result of the mediating effect test showed that there was a mediating effect(P& lt; 0.05) between sleep disorders in age(ß=0.240, Z=2.239), shift work(ß=0.656, Z=3.999), and BMI(ß=0.516, Z=7.258) and hypertension. CONCLUSION: Sleep disorders may be a risk factor affecting hypertension in oil workers in Karamay City, and there were mediating effects between age, shift work, and BMI and hypertension.


Assuntos
Hipertensão , Transtornos do Sono-Vigília , Cidades , Estudos Transversais , Feminino , Humanos , Hipertensão/epidemiologia , Masculino , Fatores de Risco , Sono , Transtornos do Sono-Vigília/epidemiologia , Inquéritos e Questionários
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