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1.
Medicine (Baltimore) ; 103(37): e39360, 2024 Sep 13.
Artigo em Inglês | MEDLINE | ID: mdl-39287240

RESUMO

RATIONALE: Deafness is associated with both environmental and genetic factors, with hereditary deafness often caused by mutations in deafness-related genes. Identifying and analyzing deafness-related genes will aid in early diagnosis and pave the way for treating inherited deafness through gene therapy in the future. PATIENT CONCERNS: A 15-month-old girl underwent audiological examination at the outpatient clinic of the hospital due to hearing loss and her brother was diagnosed with profound bilateral sensorineural hearing loss at the age of 3. DIAGNOSES: The diagnosis was determined as extremely severe sensorineural hearing loss caused by genetic factors. INTERVENTIONS: Clinical data of the patient were collected, and peripheral blood samples were obtained from both the patient and her family members for DNA extraction and sequencing. OUTCOMES: By utilizing targeted capture next-generation sequencing to further screen for deafness-related genes, 2 novel variants in CDH23 were identified as the causative factors for the patient's deafness. LESSONS: This study identified 2 novel heterozygous mutations in a Chinese family. Both the proband and her sibling have non-syndromic hearing loss (NSHL) and carry distinct heterozygous mutations of cadherin-like 23 (CDH23). One mutation, CDH23:c.2651 A>G, originated from their mother and paternal family, affecting the exon23 domain of CDH23. The other mutation, CDH23:c.2113 G>T, was inherited from their paternal grandmother, impacting the exon19 domain of CDH23. These 2 novel mutations likely cause NSHL by affecting protein function. This finding suggests that identifying 2 novel mutations in CDH23 contributes to the genetic basis of NSHL.


Assuntos
Caderinas , Perda Auditiva Neurossensorial , Humanos , Feminino , Caderinas/genética , Lactente , Perda Auditiva Neurossensorial/genética , Perda Auditiva Neurossensorial/diagnóstico , Linhagem , Mutação , Povo Asiático/genética , China , Masculino , Proteínas Relacionadas a Caderinas , Sequenciamento de Nucleotídeos em Larga Escala , População do Leste Asiático
2.
Complement Med Res ; : 1-28, 2024 Sep 18.
Artigo em Inglês | MEDLINE | ID: mdl-39293413

RESUMO

INTRODUCTION: This systematic review examines the efficacy of a combination of Qi benefiting and blood circulation promoting herbs with Dapagliflozin in treating type 2 diabetes mellitus (T2DM) combined with heart failure (HF). METHODS: Randomized controlled trials (RCTs) assessing the combination of Qi benefiting and blood circulation promoting herbs with Dapagliflozin for T2DM and CHF was conducted. The search, spanning from the database's establishment to June 2023, included seven databases: China Knowledge Network (CNKI), Wanfang Database, VIP Database, PubMed, Embase, Cochrane Library, and the Chinese Biomedical Literature Database. Two researchers screened and extracted data based on inclusion and exclusion criteria. The Cochrane Handbook version 5.1 guided the quality assessment of studies, and the meta-analysis was performed using RevMan 5.4 software. RESULTS: Eleven articles, encompassing a sample size of 1192 cases, were included. Meta-analysis results indicated that combining Qi benefiting and blood circulation promoting herbs with Dapagliflozin improved the clinical efficacy rate [OR=4.35, 95% CI (2.98, 6.35), P<0.00001]. It reduced blood glucose levels, evidenced by decreased fasting blood glucose (FBG) [MD=-1.19, 95% CI (-1.30, -1.09), P<0.00001], 2-hour postprandial blood glucose (2hPG) [MD=-1.95, 95% CI (-2.09, -1.80), P<0.00001], and glycosylated haemoglobin (HbA1c) [MD=-1.40, 95% CI (-1.49, -1.31), P<0.00001]. Inflammatory factors also reduced, including C-reactive protein (CRP) [MD=-4.93, 95% CI (-5.38, -4.48), P<0.00001], tumor necrosis factor (TNF-α) [MD=-2.91, 95% CI (-3.32, -2.49), P<0.00001], and interleukin-6 (IL-6) [MD=-11.10, 95% CI (-12.43, -9.43), P<0.00001]. Additionally, left ventricular end-diastolic diameter (LVEDD) [SMD=-1.25, 95% CI (-1.45, -1.05), P<0.00001], left ventricular end-systolic diameter (LVESD) [SMD=-1.34, 95% CI (-1.51, -1.13), P<0.00001], and improved left ventricular ejection fraction (LVEF)[SMD=2.92, 95% CI (2.65, 3.19), P<0.00001], 6-minute walk test (6MWT) [MD=35.59, 95% CI (29.72, 41.47), P<0.00001], and Minnesota Living with Heart Failure Questionnaire (MLHFQ) scores [MD=35.59, 95% CI (29.72, 41.47), P<0.00001] were observed. The incidence of adverse events also decreased [RR=0.25, 95% CI (0.11, 0.56), P=0.0007]. CONCLUSION: The combination of Qi benefiting and blood circulation promoting herbs with Dapagliflozin shows potential in treating patients with T2DM and HF, suggesting its use as adjunctive therapy in clinical practice. However, the limited number and quality of the included studies necessitate further high-quality research to confirm these findings.

3.
Theranostics ; 14(13): 4948-4966, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39267787

RESUMO

Rationale: Tumor cells remodel transcriptome to construct an ecosystem with stemness features, which maintains tumor growth and highly malignant characteristics. However, the core regulatory factors involved in this process still need to be further discovered. Methods: Single cell RNA-sequncing (scRNA-seq) and bulk RNA-sequencing profiles derived from fetal liver, normal liver, liver tumors, and their adjacent samples were collected to analyze the ecosystem of liver cancer. Mouse models were established to identify molecular functions of oncofetal-related oncogenes using hydrodynamic tail vein injection. Results: We found that liver cancer rebuilt oncofetal ecosystem to maintain malignant features. Interestingly, we identified a group of RNA-binding proteins (RBPs) that were highly overexpressed with oncofetal features. Among them, TRIM71 was specifically expressed in liver cancers and was associated with poor outcomes. TRIM71 drove the carcinogenesis of hepatocellular carcinoma (HCC), and knockdown of TRIM71 significantly abolished liver cancer cell proliferation. Mechanistically, TRIM71 formed a protein complex with IGF2BP1, bound to and stabilized the mRNA of CEBPA in an m6A-dependent manner, enhance the serine/glycine metabolic pathway, and ultimately promoted liver cancer progression. Furthermore, we identified that all-trans-retinoic acid (ATRA) combined with e1A binding protein p300 (EP300) inhibitor A-485 repressed TRIM71, attenuated glycine/serine metabolism, and inhibited liver cancer cell proliferation with high TRIM71 levels. Conclusions: We demonstrated the oncofetal status in liver cancer and highlighted the crucial role of TRIM71 and provided potential therapeutic strategies and liver cancer-specific biomarker for liver cancer patients.


Assuntos
Carcinogênese , Carcinoma Hepatocelular , Glicina , Neoplasias Hepáticas , Serina , Animais , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/patologia , Neoplasias Hepáticas/genética , Camundongos , Humanos , Serina/metabolismo , Carcinogênese/genética , Carcinogênese/metabolismo , Glicina/metabolismo , Carcinoma Hepatocelular/metabolismo , Carcinoma Hepatocelular/patologia , Carcinoma Hepatocelular/genética , Linhagem Celular Tumoral , Proliferação de Células , Regulação Neoplásica da Expressão Gênica , Proteínas com Motivo Tripartido/metabolismo , Proteínas com Motivo Tripartido/genética , Proteínas de Ligação a RNA/metabolismo , Proteínas de Ligação a RNA/genética , Camundongos Nus
4.
Front Med (Lausanne) ; 11: 1455207, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39301484

RESUMO

Intrauterine devices (IUDs) are often considered a form of contraception by women of reproductive age because of their reversible, effective, safe, and convenient nature. However, its complications include bleeding, infection, displacement, and uterine perforation. As most patients do not exhibit any obvious symptoms, they ignore their complications and are unaware of the necessity of regular evaluation. Therefore, they are unable to implement timely interventions for the complications that can result in serious consequences. Although, three-dimensional (3D) ultrasound has demonstrated greater sensitivity in detecting subtle IUD malposition issues, particularly with side-arm embedment. Computed tomography (CT) scanning followed by multi-planar reformatting, maximum intensity projection, and volume rendering can precisely and intuitively display the morphology and location of the IUD, accurately exhibit the anatomical relationship between the IUD and the pelvis, and allow for a more accurate assessment of the degree of perforation and presence and absence of bowel perforation, thereby enabling us to select a more suitable surgical procedure with less damage to the patient. In this study, we reported an asymptomatic case of uterine perforation of the IUD into the serosal layer of the bladder, which developed 6 years post-IUD placement. A preoperative 3D reconstruction was made using the CT images of the IUD; then, the IUD was successfully removed with the assistance of a hysteroscope and laparoscope.

5.
Phytomedicine ; 133: 155911, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39106625

RESUMO

BACKGROUND: Left ventricular diastolic dysfunction (LVDD) is a manifestation of heart failure, with both its incidence and prevalence increasing annually. Currently, no pharmacological treatments are available for LVDD, highlighting the urgent need for new therapeutic discoveries. Ginsenosides are commonly used in cardiovascular therapy. Previous research has synthesized the ginsenoside precursor molecule, 20S-O-Glc-DM (C20DM), through biosynthesis. C20DM shows greater bioavailability, eco-friendliness, and cost-effectiveness compared to traditional ginsenosides, positioning it as a promising option for treating LVDD. PURPOSE: This study firstly documents the therapeutic activity of C20DM against LVDD and unveils its potential mechanisms of action. It provides a pharmacological basis for C20DM as a new cardiovascular therapeutic agent. METHODS: In this study, models of LVDD in mice and ISO-induced H9C2 cell damage were developed. Cell viability, ROS and Ca2+ levels, mitochondrial membrane potential, and proteins associated with mitochondrial biogenesis and autophagy were evaluated in the in vitro experiments. Animal experiments involved administering medication for 3 weeks to validate the therapeutic effects of C20DM and its impact on mitochondria and autophagy. RESULTS: Research has shown that C20DM is more effective than Metoprolol in treating LVDD, significantly lowering the E/A ratio, e'/a' ratio, and IVRT, and ameliorating myocardial inflammation and fibrosis. C20DM influences the activity of PGC-1α, downregulates PINK1 and Parkin, thereby enhancing mitochondrial quality control, and restoring mitochondrial oxidative respiration and membrane potential. Furthermore, C20DM reduces excessive autophagy in cardiomyocytes via the AMPK-mTOR-ULK1 pathway, diminishing cardiomyocyte hypertrophy and damage. CONCLUSIONS: Overall, our research indicates that C20DM has the potential to enhance LVDD through the regulation of mitochondrial quality control and cellular autophagy, making it a promising option for heart failure therapy.


Assuntos
Autofagia , Ginsenosídeos , Potencial da Membrana Mitocondrial , Miócitos Cardíacos , Disfunção Ventricular Esquerda , Animais , Autofagia/efeitos dos fármacos , Miócitos Cardíacos/efeitos dos fármacos , Disfunção Ventricular Esquerda/tratamento farmacológico , Camundongos , Ginsenosídeos/farmacologia , Masculino , Potencial da Membrana Mitocondrial/efeitos dos fármacos , Camundongos Endogâmicos C57BL , Linhagem Celular , Espécies Reativas de Oxigênio/metabolismo , Modelos Animais de Doenças , Ratos , Proteína Homóloga à Proteína-1 Relacionada à Autofagia/metabolismo , Sobrevivência Celular/efeitos dos fármacos , Coativador 1-alfa do Receptor gama Ativado por Proliferador de Peroxissomo/metabolismo , Mitocôndrias/efeitos dos fármacos , Proteínas Quinases/metabolismo , Ubiquitina-Proteína Ligases/metabolismo , Cálcio/metabolismo
6.
Bioorg Chem ; 151: 107691, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39116524

RESUMO

Ten new B-ring aromatized 6/6/6-tricyclic dearomatized benzocogeijerene-based meroterpenoids with unusual methyl 1,2-shift or demethylation (2-9b), and two new geranylquinol derivatives (1 and 10), together with two known compounds (11 and 12), were isolated from the roots of Arnebia euchroma. Their structures were elucidated by extensive spectroscopic methods, X-ray diffraction crystallography, and ECD calculations. The plausible biosynthetic pathways including the unusual methyl 1,2-shfit and demethylation for B-ring aromatized 6/6/6-tricyclic meroterpenoids were discussed. Compounds 1, 2, 5, 6, 11, and 12 showed significant cardioprotective activities comparable to diltiazem against isoprenaline (ISO)-induced H9C2 cell damage in vitro. Compound 11 probably exerted heart-protective effect on ISO-induced H9C2 cells by modulating the PI3K-AKT-mTOR pathway, reducing excessive autophagy, and decreasing myocardial apoptosis.


Assuntos
Apoptose , Autofagia , Boraginaceae , Miócitos Cardíacos , Terpenos , Apoptose/efeitos dos fármacos , Miócitos Cardíacos/efeitos dos fármacos , Miócitos Cardíacos/metabolismo , Autofagia/efeitos dos fármacos , Boraginaceae/química , Ratos , Terpenos/farmacologia , Terpenos/química , Terpenos/isolamento & purificação , Animais , Estrutura Molecular , Relação Estrutura-Atividade , Relação Dose-Resposta a Droga , Insuficiência Cardíaca/tratamento farmacológico , Cardiotônicos/farmacologia , Cardiotônicos/química , Cardiotônicos/isolamento & purificação , Linhagem Celular
7.
PLoS One ; 19(8): e0307332, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39163313

RESUMO

This study investigates the impact of maternal health on infant development by developing a mathematical model that delineates the relationship between maternal health indicators and infant behavioral characteristics and sleep quality. The main contributions of this study are as follows: (1) The use of Spearman's correlation coefficient to conduct correlation analysis and explore the main factors that influence infant behavioral characteristics based on maternal indicators. (2) The development of a combined model using machine learning techniques, including random forest (RF) and multilayer perceptron (MLP) to establish the relationship between maternal health (physical and psychological health) and infant behavioral characteristics. The model is trained and validated by the real data respectively. (3) The use of the Fuzzy C-means (FCM) dynamic clustering model to classify infant sleep quality. An RF regression model is constructed to predict infant sleep quality using maternal indicators. This study is significant in gaining a deeper understanding of the relationship between maternal health indicators and infant development, and provides a basis for future intervention measures.


Assuntos
Aprendizado de Máquina , Saúde Materna , Humanos , Feminino , Lactente , Comportamento do Lactente/fisiologia , Adulto , Qualidade do Sono , Recém-Nascido , Masculino , Modelos Teóricos
8.
Eur J Pharmacol ; 982: 176946, 2024 Nov 05.
Artigo em Inglês | MEDLINE | ID: mdl-39182541

RESUMO

Heart failure is a multifactorial disease, the percentage of patients with heart failure caused by metabolic syndrome is increasing year by year. The effect of gut flora dysbiosis on metabolic syndrome and heart failure has received widespread attention in recent years. Drugs to treat the condition urgently need to be discovered. C20DM, as a precursor compound of ginsenoside, is a small molecule compound obtained by biosynthetic means and is not available in natural products. In this project, we found that C20DM could improve the diversity of gut flora and elevate the expression of intestinal tight junction proteins-Occludin, Claudin, ZO-1, which inhibited the activity of the TLR4-MyD88-NF-kB pathway, and as a result, reduced myocardial inflammation and slowed down heart failure in metabolic syndrome mice. In conclusion, our study suggests that C20DM can treat heart failure by regulating gut flora, and it may be a candidate drug for treating metabolic syndrome-induced heart failure.


Assuntos
Microbioma Gastrointestinal , Insuficiência Cardíaca , Síndrome Metabólica , Animais , Microbioma Gastrointestinal/efeitos dos fármacos , Síndrome Metabólica/metabolismo , Síndrome Metabólica/tratamento farmacológico , Síndrome Metabólica/microbiologia , Síndrome Metabólica/complicações , Insuficiência Cardíaca/metabolismo , Insuficiência Cardíaca/tratamento farmacológico , Insuficiência Cardíaca/microbiologia , Camundongos , Masculino , Camundongos Endogâmicos C57BL , Receptor 4 Toll-Like/metabolismo , NF-kappa B/metabolismo , Fator 88 de Diferenciação Mieloide/metabolismo , Transdução de Sinais/efeitos dos fármacos , Ginsenosídeos/farmacologia , Ginsenosídeos/uso terapêutico
9.
Nat Commun ; 15(1): 7504, 2024 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-39209849

RESUMO

OSCA/TMEM63 channels, which have transporter-like architectures, are bona fide mechanosensitive (MS) ion channels that sense high-threshold mechanical forces in eukaryotic cells. The activation mechanism of these transporter-like channels is not fully understood. Here we report cryo-EM structures of a dimeric OSCA/TMEM63 pore mutant OSCA1.1-F516A with a sequentially extracellular dilated pore in a detergent environment. These structures suggest that the extracellular pore sequential dilation resembles a flower blooming and couples to a sequential contraction of each monomer subunit towards the dimer interface and subsequent extrusion of the dimer interface lipids. Interestingly, while OSCA1.1-F516A remains non-conducting in the native lipid environment, it can be directly activated by lyso-phosphatidylcholine (Lyso-PC) with reduced single-channel conductance. Structural analysis of OSCA1.1-F516A in lyso-PC-free and lyso-PC-containing lipid nanodiscs indicates that lyso-PC induces intracellular pore dilation by attracting the M6b to upward movement away from the intracellular side thus extending the intracellular pore. Further functional studies indicate that full activation of MS OSCA/TMEM63 dimeric channels by high-threshold mechanical force also involves the opening of both intercellular and extracellular pores. Our results provide the fundamental activation paradigm of the unique transporter-like MS OSCA/TMEM63 channels, which is likely applicable to functional branches of the TMEM63/TMEM16/TMC superfamilies.


Assuntos
Microscopia Crioeletrônica , Humanos , Células HEK293 , Canais Iônicos/metabolismo , Canais Iônicos/química , Canais Iônicos/genética , Mecanotransdução Celular , Modelos Moleculares , Mutação , Multimerização Proteica , Proteínas de Membrana
10.
Metabolites ; 14(7)2024 Jun 27.
Artigo em Inglês | MEDLINE | ID: mdl-39057685

RESUMO

Lipopolysaccharide (LPS) is one of the important pathogenic substances of E. coli and Salmonella, which causes injury to the reproductive system. Ovarian dysfunction due to Gram-negative bacterial infections is a major cause of reduced reproductive performance in geese. However, the specific molecular mechanisms of LPS-induced impairment of sex steroid hormone synthesis have not been determined. The regulatory mechanism of miRNA has been proposed in many physiological and pathogenic mechanisms. Therefore, the role of miRNA in breeding geese exposed to LPS during the peak laying period was investigated. In this study, twenty Yangzhou geese at peak laying period were injected with LPS for 0 h, 24 h, and 36 h. The follicular granulosa layer was taken for RNA-seq and analyzed for differentially expressed miRNAs. It was observed that LPS changed the appearance of hierarchical follicles. miRNA sequencing analysis was applied, and miR-21 and SMAD2 (SMAD family member 2) were selected from 51 differentially expressed miRNAs through bioinformatics prediction. The results showed that miR-21 down-regulated SMAD2 expression and progesterone (P4) production in LPS-treated goose granulosa cells (GCs). It also determined that overexpression of miR-21 or silence of SMAD2 suppressed the sex steroid biosynthesis pathway by decreasing STAR and CYP11A1 expression. Down-regulation of miR-21 exacerbates the LPS-induced decline in P4 synthesis and vice versa. The findings indicated that miR-21 was involved in LPS regulation of P4 synthesis in goose granulosa cells by down-regulating SMAD2. This study provides theoretical support for the prevention of LPS-induced ovarian dysfunction in geese.

11.
Artigo em Inglês | MEDLINE | ID: mdl-38946427

RESUMO

The glucose-fructose oxidoreductase/inositol dehydrogenase/rhizopine catabolism protein (Gfo/Idh/MocA) family includes a variety of oxidoreductases with a wide range of substrates that utilize NAD or NADP as redox cofactor. Human contains two members of this family, namely glucose-fructose oxidoreductase domain-containing protein 1 and 2 (GFOD1 and GFOD2). While GFOD1 exhibits low tissue specificity, it is notably expressed in the brain, potentially linked to psychiatric disorders and severe diseases. Nevertheless, the specific function, cofactor preference, and enzymatic activity of GFOD1 remain largely unknown. In this work, we find that GFOD1 does not bind to either NAD or NADP. Crystal structure analysis unveils that GFOD1 exists as a typical homodimer resembling other family members, but lacks essential residues required for cofactor binding, suggesting that it may function as a pseudoenzyme. Exploration of GFOD1-interacting partners in proteomic database identifies NK-κB inhibitor-interacting Ras-like 2 (NKIRAS2) as one potential candidate. Co-immunoprecipitation (co-IP) analysis indicates that GFOD1 interacts with both GTP- and GDP-bound forms of NKIRAS2. The predicted structural model of the GFOD1-NKIRAS2 complex is validated in cells using point mutants and shows that GFOD1 selectively recognizes the interswitch region of NKIRAS2. These findings reveal the distinct structural properties of GFOD1 and shed light on its potential functional role in cellular processes.

12.
Biochim Biophys Acta Rev Cancer ; 1879(5): 189126, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38849060

RESUMO

Neoantigen-based therapy is a promising approach that selectively activates the immune system of the host to recognize and eradicate cancer cells. Preliminary clinical trials have validated the feasibility, safety, and immunogenicity of personalized neoantigen-directed vaccines, enhancing their effectiveness and broad applicability in immunotherapy. While many ongoing oncological trials concentrate on neoantigens derived from mutations, these targets do not consistently provoke an immune response in all patients harboring the mutations. Additionally, tumors like ovarian cancer, which have a low tumor mutational burden (TMB), may be less amenable to mutation-based neoantigen therapies. Recent advancements in next-generation sequencing and bioinformatics have uncovered a rich source of neoantigens from non-canonical RNAs associated with transposable elements (TEs). Considering the substantial presence of TEs in the human genome and the proven immunogenicity of TE-derived neoantigens in various tumor types, this review investigates the latest findings on TE-derived neoantigens, examining their clinical implications, challenges, and unique advantages in enhancing tumor immunotherapy.


Assuntos
Antígenos de Neoplasias , Elementos de DNA Transponíveis , Imunoterapia , Neoplasias , Humanos , Neoplasias/imunologia , Neoplasias/terapia , Neoplasias/genética , Elementos de DNA Transponíveis/genética , Elementos de DNA Transponíveis/imunologia , Imunoterapia/métodos , Antígenos de Neoplasias/imunologia , Antígenos de Neoplasias/genética , Vacinas Anticâncer/imunologia , Vacinas Anticâncer/uso terapêutico , Vacinas Anticâncer/genética , Mutação
13.
Front Vet Sci ; 11: 1398728, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38872803

RESUMO

The poultry ovary is a preferred target for E. coli and Salmonella infection of tissues, and lipopolysaccharide (LPS) is a critical molecule in infecting the organism and interfering with cell function, invading the ovaries through the cloaca and interfering with progesterone (P4) secretion by follicular granulosa cells (GCs), seriously affecting the health of breeding geese. miRNAs are small, non-coding RNAs with a variety of important regulatory roles. To investigate the mechanism of miR-10a-5p mediated LPS inhibition of progesterone synthesis in goose granulosa cells, Yangzhou geese at peak laying period were selected as experimental animals to verify the expression levels of genes and transcription factors related to progesterone synthesis. In this study, bioinformatic predictions identified miR-10a-5p target gene CYP11A1, and genes and transcription factors related to the sex steroid hormone secretion pathway were screened. We detected that LPS inhibited CYP11A1 expression while increasing miR-10a-5p expression in vivo. Progesterone decreased significantly in goose granulosa cells treatment with 1 µg/mL LPS for 24 h, while progesterone-related genes and regulatory factors were also suppressed. We also determined that the downregulation of miR-10a-5p led to CYP11A1 expression. Overexpression of miR-10a-5p suppressed LPS-induced CYP11A1 expression, resulting in decreased progesterone secretion. Our findings indicated that miR-10a-5p was up-regulated by LPS and inhibited progesterone synthesis by down-regulating CYP11A1. This study provides insight into the molecular mechanisms regulating geese reproduction and ovulation.

14.
Front Pharmacol ; 15: 1375795, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38895625

RESUMO

Introduction: This systematic review evaluates the efficacy of the Chinese herbal formula modified Danggui Sini Decoction as an adjunctive treatment for angina pectoris in patients with coronary heart disease. Methods: We conducted a comprehensive search for randomized controlled trials that investigated the effects of modified Danggui Sini Decoction in combination with conventional Western medication on angina pectoris in coronary artery disease, published up to July 2023 across eight databases, including China Knowledge International Literature screening and data extraction were performed by two researchers following predefined inclusion and exclusion criteria. The quality of included studies was assessed using the Cochrane Handbook version 5.1, and meta-analysis was executed via RevMan 5.4 software. Results: Thirteen studies encompassing 1,232 participants were incorporated. The meta-analysis revealed that combining modified Danggui Sini Decoction with conventional Western medication significantly enhanced overall clinical efficacy, reduced the duration of angina attacks, decreased the Chinese medicine syndrome score, improved inflammatory markers and cardiac function, lowered serum NT-proBNP levels, and elevated the Seattle Angina Questionnaire scores compared to the control group. Conclusion: Modified Danggui Sini Decoction, when used alongside conventional Western medications, shows promise in treating coronary artery disease patients with angina pectoris and may serve as a beneficial adjunctive therapy in clinical settings. Nonetheless, due to the limited quantity and quality of the included studies, further high-caliber research is essential to substantiate these findings. Systematic Review Registration: https://inplasy.com/? s=202390078, identifier INPLASY 202390078.

15.
Nat Immunol ; 25(8): 1383-1394, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38942990

RESUMO

The immunological mechanisms underlying chronic colitis are poorly understood. T follicular helper (TFH) cells are critical in helping B cells during germinal center reactions. In a T cell transfer colitis model, a lymphoid structure composed of mature dendritic cells (DCs) and TFH cells was found within T cell zones of colonic lymphoid follicles. TFH cells were required for mature DC accumulation, the formation of DC-T cell clusters and colitis development. Moreover, DCs promoted TFH cell differentiation, contributing to colitis development. A lineage-tracing analysis showed that, following migration to the lamina propria, TFH cells transdifferentiated into long-lived pathogenic TH1 cells, promoting colitis development. Our findings have therefore demonstrated the reciprocal regulation of TFH cells and DCs in colonic lymphoid follicles, which is critical in chronic colitis pathogenesis.


Assuntos
Diferenciação Celular , Colite , Células Dendríticas , Células T Auxiliares Foliculares , Animais , Células Dendríticas/imunologia , Colite/imunologia , Colite/patologia , Células T Auxiliares Foliculares/imunologia , Camundongos , Diferenciação Celular/imunologia , Camundongos Endogâmicos C57BL , Modelos Animais de Doenças , Células Th1/imunologia , Colo/imunologia , Colo/patologia , Camundongos Knockout , Centro Germinativo/imunologia , Camundongos Transgênicos
16.
Viruses ; 16(6)2024 May 30.
Artigo em Inglês | MEDLINE | ID: mdl-38932174

RESUMO

Influenza A viruses continue to be a serious health risk to people and result in a large-scale socio-economic loss. Avian influenza viruses typically do not replicate efficiently in mammals, but through the accumulation of mutations or genetic reassortment, they can overcome interspecies barriers, adapt to new hosts, and spread among them. Zoonotic influenza A viruses sporadically infect humans and exhibit limited human-to-human transmission. However, further adaptation of these viruses to humans may result in airborne transmissible viruses with pandemic potential. Therefore, we are beginning to understand genetic changes and mechanisms that may influence interspecific adaptation, cross-species transmission, and the pandemic potential of influenza A viruses. We also discuss the genetic and phenotypic traits associated with the airborne transmission of influenza A viruses in order to provide theoretical guidance for the surveillance of new strains with pandemic potential and the prevention of pandemics.


Assuntos
Adaptação ao Hospedeiro , Vírus da Influenza A , Influenza Humana , Humanos , Influenza Humana/transmissão , Influenza Humana/virologia , Influenza Humana/epidemiologia , Animais , Vírus da Influenza A/genética , Vírus da Influenza A/fisiologia , Influenza Aviária/transmissão , Influenza Aviária/virologia , Aves/virologia , Pandemias
17.
Dement Geriatr Cogn Disord ; : 1-11, 2024 Jun 06.
Artigo em Inglês | MEDLINE | ID: mdl-38843782

RESUMO

INTRODUCTION: Diabetes is a significant risk factor for cognitive impairment. Therefore, early identification of cognitive impairment in diabetic patients is particularly important. The aim of this study was to assess the relationship between Cardiometabolic index (CMI) and cognitive function in a diabetic population. METHODS: A cross-sectional study was conducted by collecting information from the National Health and Nutrition Examination Survey (NHANES) 2011-2014. Multiple linear regression models were used to investigate the correlation between CMI and low cognitive function in a diabetic population. Threshold effects analysis and fitted smoothing curves were used to describe the nonlinear links. Interaction tests and subgroup analyses were also performed. RESULTS: A total of 1,050 people participated in this study, including 561 men and 489 women. In the fully corrected model, CMI was positively associated with low cognitive performance as assessed by CERAD Word List Learning Test (CERAD W-L), Animal Fluency Test (AFT), and Digit Symbol Substitution Test (DSST) (OR = 1.37 [1.14, 1.72], p = 7.4 × 10-3), (OR = 1.21 [1.04, 1.51], p = 1.26 × 10-2), and (OR = 1.27 [1.08, 1.63], p = 2.53 × 10-2). Our study found that diabetic patients with higher CMI were at greater risk of developing low cognitive function. The effect of the subgroups on the positive association of CMI with cognitive impairment was not significant. A non-linear association between low cognitive performance and CMI was determined by CERAD W-L, AFT, and DSST (log-likelihood ratio <5 × 10-2). In addition, our also study found that CMI was a better predictor of cognitive impairment in diabetes than weight-adjusted waist index (WWI). CONCLUSION: Increased CMI is associated with an increased risk of cognitive impairment in people with diabetes. CMI can be used as a new anthropometric measure for predicting cognitive impairment in diabetes, with stronger predictive power than WWI.

18.
Front Pediatr ; 12: 1358639, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38915872

RESUMO

Background: Acute upper respiratory tract infection (AURI) includes infections caused by a variety of pathogens and is one of the most common diseases in children. Traditional Chinese medicine (TCM) injections are widely used for treating AURI in clinical practice, but their efficacy is unclear because of the lack of clear evidence. In this study, a network meta-analysis (NMA) was used to evaluate the efficacy and safety of TCM injections in the treatment of AURI and to provide a reference for clinical treatment. Methods: Eight databases were searched, namely, PubMed, Embase, the Cochrane Library, Web of Science, SinoMed, China National Knowledge Infrastructure (CNKI), the Wanfang database, and the Chinese Scientific Journal database (VIP). The search time period was from 1 January 2013 to 1 November 2023. Randomized controlled trials of herbal injections for treating AURI were searched. The Cochrane Risk of Bias 2.0 tool was used to assess the quality of these studies. Review Manager 5.4 and Stata 15.0 were used for the NMA. Results: A total of 81 papers involving 11,736 patients were included. These involved five different TCM injections, namely, Xiyanping injection (XYPI), Qingkailing injection (QKLI), Reduning injection (RDNI), Yanhuning injection (YHNI), and Tanreqing injection (TRQI). QKLI was most effective in alleviating symptoms of fever and improving overall clinical effectiveness. TRQI was most effective in relieving cough symptoms. YHNI was most effective in alleviating sore throat, runny nose, and nasal congestion. The overall incidence of adverse effects of these herbal injections in the treatment of AURI was lower, and their safety profiles were better. Conclusions: The herbal injections combined with ribavirin improved clinical outcomes, and were superior to ribavirin injection alone in alleviating clinical symptoms such as fever, cough, sore throat, runny nose, and nasal congestion, and have favorable safety profiles. Systematic Review Registration: https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42023484099, CRD42023484099.

19.
J Med Chem ; 67(11): 8913-8931, 2024 Jun 13.
Artigo em Inglês | MEDLINE | ID: mdl-38809993

RESUMO

Estrogen receptor α (ERα) plays a pivotal role in the proliferation, differentiation, and migration of breast cancer (BC) cells, and aromatase (ARO) is a crucial enzyme in estrogen synthesis. Hence, it is necessary to inhibit estrogen production or the activity of ERα for the treatment of estrogen receptor-positive (ER+) BC. Herein, we present a new category of dual-targeting PROTAC degraders designed to specifically target ERα and ARO. Among them, compound 18c bifunctionally degrades and inhibits ERα/ARO, thus effectively suppressing the proliferation of MCF-7 cells while showing negligible cytotoxicity to normal cells. In vivo, 18c promotes the degradation of ERα and ARO and inhibits the growth of MCF-7 xenograft tumors. Finally, compound 18c demonstrates promising antiproliferative and ERα degradation activity against the ERαMUT cells. These findings suggest that 18c, being the inaugural dual-targeting degrader for ERα and ARO, warrants further advancement for the management of BC and the surmounting of endocrine resistance.


Assuntos
Neoplasias da Mama , Proliferação de Células , Resistencia a Medicamentos Antineoplásicos , Receptor alfa de Estrogênio , Humanos , Receptor alfa de Estrogênio/metabolismo , Receptor alfa de Estrogênio/antagonistas & inibidores , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/patologia , Neoplasias da Mama/metabolismo , Feminino , Animais , Resistencia a Medicamentos Antineoplásicos/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Camundongos , Aromatase/metabolismo , Inibidores da Aromatase/farmacologia , Inibidores da Aromatase/química , Inibidores da Aromatase/síntese química , Antineoplásicos/farmacologia , Antineoplásicos/química , Antineoplásicos/síntese química , Células MCF-7 , Proteólise/efeitos dos fármacos , Camundongos Nus , Descoberta de Drogas , Relação Estrutura-Atividade
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