Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 134
Filtrar
Mais filtros








Base de dados
Intervalo de ano de publicação
1.
Zootaxa ; 5406(2): 336-342, 2024 Feb 05.
Artigo em Inglês | MEDLINE | ID: mdl-38480150

RESUMO

Continued collecting efforts at the Jiulong National Wetland Park, Zhejiang, East China revealed two additional species of the ant-loving beetle subfamily Pselaphinae (Coleoptera: Staphylinidae): Trisiniotus jiulong sp. nov. and Arthromelodes lianghongbini sp. nov. Both new species are diagnosed, described, and their important characters are illustrated.


Assuntos
Formigas , Besouros , Animais , Áreas Alagadas , Distribuição Animal , China
2.
Placenta ; 146: 89-100, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38215630

RESUMO

INTRODUCTION: The decidua can be classified into the decidua basalis, decidua capsularis and decidua parietalis. This study aimed to visually identify these three kinds of decidual tissues from fresh samples obtained in early pregnancy based on their macroscopic appearances, which can be discerned visually. METHODS: Decidual samples were collected from 15 pregnant women between 6 and 8 weeks of gestation after elective termination of pregnancy. We identified the three different kinds of fresh decidual tissues in early pregnancy according to their different macroscopic appearances by only the naked eye. H&E staining, in situ immunofluorescence and flow cytometry were performed to confirm the accuracy of this method. RESULTS: We developed a method to discern the three different kinds of decidual tissues according to their individual macroscopic features. We found that the decidua parietalis was a thick tissue with less blood, with one side being intact epidermis and the other side being rough tissue. The decidua basalis had rough surfaces, a dense texture and high blood content. The decidua capsularis was a thin membrane tissue with or without blood clots. CK+/HLA-G+ extravillous trophoblast cells (EVTs) and heme oxygenase-1+ (HMOX1+) decidual macrophages were present in large quantities in the decidua basalis and decidua capsularis but were nearly undetectable in the decidua parietalis. We also found a wide distribution of endovascular extravillous trophoblast cells (enEVTs), which participate in spiral artery remodelling in the decidua basalis. DISCUSSION: We successfully identified three kinds of human decidual tissues from early pregnancy with the naked eye for the first time. This breakthrough method will greatly assist studies related to decidua during early pregnancy.


Assuntos
Decídua , Trofoblastos , Gravidez , Humanos , Feminino , Primeiro Trimestre da Gravidez
3.
Eur J Gastroenterol Hepatol ; 36(1): 120-128, 2024 01 01.
Artigo em Inglês | MEDLINE | ID: mdl-37942731

RESUMO

OBJECTIVE: Our study aimed to evaluate the efficacy and safety of Lenvatinib compared with Sorafenib for treating hepatocellular carcinoma (HCC) patients under real-world setting. METHODS: We retrieved relevant literature through the PubMed, Embase, Web of Science, and Cochrane Library databases from 1 January 2000 to 25 June 2022. The differences in overall survival (OS), progression-free survival (PFS), objective response rate (ORR), disease control rate (DCR) as well as treatment adverse related events were evaluated between HCC patients treated with Lenvatinib and Sorafenib using fixed or random-effects models. The MINORS evaluation questionnaire was used to assess the quality of the included literature. RESULTS: This meta-analysis included a total of 9 single-arm studies and 6 comparative studies. In the meta-analysis, Lenvatinib showed significantly longer median OS than Sorafenib ( P  < 0.01, MD = 1.20, 95% CI [0.92-1.48]), as well as median PFS ( P  < 0.01, OR = 2.68, 95% CI [1.59-3.76]), and higher ORR( P  < 0.01, OR = 5.36, 95% CI [3.42-8.40]), DCR( P  < 0.01, OR = 2.17, 95% CI [1.64-2.86]). The occurrence of Hypertension was higher in Lenvatinib than in Sorafenib treatment ( P  < 0.01, MD = 5.27, 95% CI [2.38-11.66]), and there was no significant difference in Hand-foot syndrome between Lenvatinib and Sorafenib. CONCLUSION: We found that treatment with Lenvatinib in HCC patients resulted in better OS, PFS, and higher ORR and DCR compared to Sorafenib. However, safety data indicated that Lenvatinib did not exhibit a significant advantage.


Assuntos
Antineoplásicos , Carcinoma Hepatocelular , Neoplasias Hepáticas , Humanos , Sorafenibe/efeitos adversos , Carcinoma Hepatocelular/terapia , Antineoplásicos/efeitos adversos , Neoplasias Hepáticas/terapia
4.
Int J Cardiol ; 395: 131400, 2024 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-37769969

RESUMO

BACKGROUND: Heart failure (HF) is a disease closely associated with inflammation, and the systemic immune-inflammation index (SII) is a novel inflammatory marker. Therefore, this study aims to explore the relationship between SII and HF. METHODS: We used National Health and Nutrition Examination Survey data from 1998 to 2018 to include adults who reported a diagnosis of HF and complete information on the calculation of SII. SII was calculated as platelet count × neutrophil count/lymphocyte count. We used multiple logistic regression models to examine the association between SII and HF and explored possible influencing factors by subgroup analysis. In addition, we performed smoothed curve fitting and threshold effect analysis to describe the nonlinear relationship. RESULTS: The population-based study involved a total of 48,155 adults ages 20-85. Multivariate logistic regression showed that participants with the highest SII had a statistically significant 32% increased risk of HF prevalence compared to those with the lowest SII (OR = 1.32; 95% CI, 1.06-1.65, P = 0.0144) in a fully adjusted model. Subgroup analysis revealed no significant interactions between SII and specific subgroups (p > 0.05 for all interactions). Furthermore, the association between SII and HF was non-linear; the inflection point was 1104.78 (1000 cells/µl). CONCLUSIONS: Based on our findings, elevated SII levels were found to be strongly associated with the risk of HF, and SII was nonlinearly associated with HF. To validate these findings, a larger prospective investigation is needed to support the results of this study and investigate potential problems.


Assuntos
Insuficiência Cardíaca , Adulto , Humanos , Inquéritos Nutricionais , Estudos Prospectivos , Insuficiência Cardíaca/diagnóstico , Insuficiência Cardíaca/epidemiologia , Inflamação/diagnóstico , Inflamação/epidemiologia , Contagem de Leucócitos
5.
Environ Sci Pollut Res Int ; 30(52): 112943-112958, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37845597

RESUMO

Per- and polyfluoroalkyl substances (PFAS) are widespread contaminants, but few studies have explored the relationship between PFAS and levels of metabolic syndrome (MetS) in the population. The available evidence of an association is also conflicting. We selected adults and adolescents with complete PFAS data from the National Health and Nutrition Examination Survey conducted between 2003 and 2018. We analyzed the association between PFAS and MetS using multivariate logistic regression models and evaluated potential nonlinear relationships with restricted cubic spline models. Additionally, we employed weighted quantile sum (WQS) regressions to uncover the multiple exposure effects and relative weights of each PFAS. Finally, we conducted a series of sensitivity analyses to test the robustness of our findings. In this population-based study, we analyzed data from a total of 4,973 adults, aged 20-85 years, and 1,381 adolescents, aged 12-19 years. Using fully adjusted multivariate logistic regression models, we found that serum levels of perfluorodecanoate (PFDA) [0.65 (0.50, 0.85)] and total PFAS [0.92 (0.85, 0.99)] were negatively associated with the prevalence of MetS in adults. Similarly, in adolescents, we observed negative correlations between the prevalence of MetS and levels of PFDA [0.55 (0.38, 0.80)], perfluorooctanoic acid (PFOA) [0.62 (0.39, 1.00)], perfluorooctane sulfonic acid (PFOS) [0.59 (0.36, 0.96)], and total PFAS [0.61 (0.37, 0.99)]. Additionally, our study identified statistically significant negative associations between serum levels of PFAS and certain components of MetS, primarily elevated fasting glucose and lower high-density lipoprotein cholesterol. Our study found that PFAS was associated with a lower prevalence of MetS in both adults and adolescents, offering new insights into the relationship between PFAS and metabolic health. Interestingly, however, we observed conflicting findings across the components of MetS. Specifically, we observed that PFAS had a negative correlation with some metrics and a positive correlation with others. These conflicting results point to a complex interplay between PFAS and various metrics of metabolic health.


Assuntos
Ácidos Alcanossulfônicos , Poluentes Ambientais , Fluorocarbonos , Síndrome Metabólica , Adulto , Humanos , Adolescente , Síndrome Metabólica/epidemiologia , Inquéritos Nutricionais , HDL-Colesterol
6.
Zookeys ; 1179: 231-241, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37736160

RESUMO

Prior to this study, no species of Pseudophanias Raffray had been reported from Nanling, a vast biodiversity conservation area that spans five provinces in southern China. In this paper, three new species of the genus are described: Pseudophaniasfurcilobussp. nov. (Guizhou, Guangxi), P.leigongsp. nov. (Guizhou), and P.mulunsp. nov. (Guangxi), suggesting that additional study on the diversity of this group in the area is required. These species are characterized, keyed, and compared to similar congeners, supplemented with illustrations of the habitus and other morphological characters.

7.
Clin Lab ; 69(9)2023 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-37702694

RESUMO

BACKGROUND: The purpose of this study was to explore the role of FOXO3 in gastric cancer (GC). METHODS: Data on gastric cancer and normal tissues were collected from the TCGA and GTEx databases. Survival analysis was performed with the Kaplan-Meier method, and the ENCORI online analysis tool was used to predict potential interaction miRNA. The MCPCOUNTER and Tumor Immune Dysfunction and Exclusion (TIDE) algorithm were used to predict the relationship between immune infiltration and FOXO3. Finally, gene set enrichment analysis (GSEA) was used to explore the potential pathways of FOXO3 during the development of GC. RESULTS: We found that mRNA expression level of FOXO3 was remarkably higher in tumor tissue than in normal tissue, and poor prognoses of GC patients were correlated with higher expression of FOXO3. We also found that hsa-miR-18a-5p and hsa-miR-18b-5p can interact with FOXO3 and that high expression of hsa-miR-18a-5p and hsa-miR-18b-5p predicted better prognoses in GC patients. TP53 mutation was significantly associated with high FOXO3 expression, while ARID1A mutation was associated with low FOXO3 expression. Multiple immune cells were found to be related to the expression of FOXO3, and lower expression of FOXO3 may be better suited to immune checkpoint blockade treatment. CONCLUSIONS: We find that FOXO3 is a potential oncogene and that the transcript level of FOXO3 is related to the mutation of TP53 and ARID1A. In addition, FOXO3 may influence immune infiltration and different signal pathways through sponge adsorption of miRNA to impact the prognoses of stomach adenocarcinoma patients.


Assuntos
Adenocarcinoma , MicroRNAs , Neoplasias Gástricas , Humanos , Neoplasias Gástricas/genética , MicroRNAs/genética , Algoritmos , Proteína Forkhead Box O3/genética
8.
Zootaxa ; 5278(1): 195-200, 2023 May 04.
Artigo em Inglês | MEDLINE | ID: mdl-37518287

RESUMO

A new record of Centrophthalmus sinensis Raffray, 1904 from Suzhou, East China is provided, which is also the first Pselaphinae known to occur in this city, and the third pselaphine species from Jiangsu Province. A redescription of the species is given, aided with illustrations of the habitus and other morphological details.


Assuntos
Besouros , Animais , Besouros/anatomia & histologia , Distribuição Animal
9.
Zootaxa ; 5293(3): 596-599, 2023 May 23.
Artigo em Inglês | MEDLINE | ID: mdl-37518465

RESUMO

A new species of the small pselaphine genus Tyrodes Raffray (Pselaphitae: Tyrini), T. tibialis sp. nov., is described and illustrated from Guangxi, southwestern China. This species can be separated from its congeners mainly by the aedeagal characters as well as by the modified sternite 2 (V), and presence of a preapical projection of the metatibiae.

10.
Artigo em Inglês | MEDLINE | ID: mdl-37143280

RESUMO

INTRODUCTION: Cervical cancer is one of the malignant cancers with high mortality among women worldwide. Although vaccines and early detection have reduced cervical cancer mortality, it remains a malignancy with a high mortality rate in women. OBJECTIVE: We aimed to develop a novel integrated strategy that combines metabolomics with network pharmacology to explore the therapeutic mechanisms of naringin in cervical cancer. The mechanism of naringin intervention in cervical cancer was initially clarified by metabolomics and network pharmacology. METHODS: The method of LC-MS and network pharmacology for the detection and identification of potential biomarkers and the mechanisms of action of naringin was used. The metabolites were detected and identified based on ultra-high-performance liquid chromatography coupled with Quadrupole-Exactive Orbitrap MS (UHPLC-Q-Exactive Orbitrap MS) and followed by the network pharmacology analysis. RESULTS: In network pharmacology, naringin played a synergetic role through regulatory shared pathways, such as steroid hormone biosynthesis, sphingolipid signaling pathway and arachidonic acid metabolism, etc. Besides, the metabolomics analysis showed that 20 differential metabolites and 10 metabolic pathways were mainly involved in the therapeutic effect of naringin on cervical cancer. The result showed that naringin treatment for cervical cancer mainly occurs through the following metabolic pathways: amino acid metabolism and arachidonic acid metabolism. CONCLUSION: This work provided valuable information and a scientific basis for further studies of naringin in the treatment of cervical cancer.

11.
Zookeys ; 1153: 113-120, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37215937

RESUMO

Physomerinusjiulongensissp. nov. is described from a series of overwintering individuals collected in decomposing wood at Jiulong National Wetland Park, East China. The new species is characterized and separated from related congeners by the unique form of the sexually dimorphic maxillary palpi, greatly swollen male metafemora, as well as by the shape of the genitalia of both sexes. A key to, and a distributional map of, Physomerinus species occurring in China and on the Ryukyu Islands, Japan is provided.

12.
Zootaxa ; 5244(6): 595-599, 2023 Feb 23.
Artigo em Inglês | MEDLINE | ID: mdl-37044442

RESUMO

The pselaphine genus Pakistatyrus Hlavác (Pselaphitae: Tyrini) is represented by two species distributed in high mountain areas of the Himalaya. Here a third species, P. schmidti sp. nov., is described from Nepal. The species is characterized by the simple male antennae, large foveae of the pronotum and elytra, greatly reduced elytra, and conspicuously asymmetric aedeagus. A key to and an updated distribution map of the species of Pakistatyrus is provided.


Assuntos
Besouros , Masculino , Animais , Distribuição Animal
15.
Zootaxa ; 5357(4): 595-600, 2023 Oct 20.
Artigo em Inglês | MEDLINE | ID: mdl-38220629

RESUMO

The myrmecophilous clavigerite Anaclasiger zhudaiae Yin & Huang is known from a single female collected in Guangdong, southern China. Here, I report the discovery of this species in Hunan, central China, associated with Nylanderia flaviabdominis (Wang) ants, which extends its range approximately 630 km northward from the type locality. The male is described for the first time, and the habitus and other major diagnostic characters are illustrated. Ex-situ photographs of living beetles and a map showing the distribution of Anaclasiger Raffray are provided.


Assuntos
Formigas , Besouros , Feminino , Masculino , Animais , Distribuição Animal , Estruturas Animais , China
17.
Zootaxa ; 5396(1): 131-134, 2023 Dec 29.
Artigo em Inglês | MEDLINE | ID: mdl-38220974

RESUMO

The extinct members of the ant-like stone beetle supertribe Mastigitae are among the best studied groups of all fossil Scydmaeninae, and their evolutionary history can be traced from the latest Albian to the earliest Cenomanian through Miocene/Oligocene, with seven extinct genera being described (summarized in Jaoszyski, 2016; Jaoszyski & Perkovsky, 2016; Jaoszyski et al., 2018; Ross, 20192022 (list of Burmese amber taxa)).


Assuntos
Afídeos , Besouros , Animais , Âmbar , Países Bálticos , Fósseis
18.
Zootaxa ; 5346(3): 317-324, 2023 Sep 19.
Artigo em Inglês | MEDLINE | ID: mdl-38221337

RESUMO

The Pselaphinae fauna of Hubei Province in central China is extremely poorly documented. Here we describe two new species recently collected at a riverbank near Chongyangs county seat. Batrisiella riparia sp. nov. is characterized by the greatly swollen metafemora of the male, and Nipponobythus varicornis sp. nov. has a darkish-colored body, and uniquely modified male antennal clubs and metaventrite. Illustrations of the habitus and taxonomically informative characters of both species are provided for a reliable identification.


Assuntos
Besouros , Masculino , Animais , Distribuição Animal , China
19.
Zootaxa ; 5346(3): 331-336, 2023 Sep 19.
Artigo em Inglês | MEDLINE | ID: mdl-38221335

RESUMO

The C. lustricollis group of the scydmaenine genus Cephennodes Reitter was previously represented by three species distributed in northern Vietnam and China (Hong Kong and Guizhou). Here we describe a fourth member, Cephennodes gusu sp. nov., collected from Qionglong Mountain, Suzhou, eastern China. The new species is characterized by its moderately large body size, the punctation of the head, pronotum and elytra, and the structure of the aedeagus. It is also the first record of the subfamily Scydmaeninae in Jiangsu Province.


Assuntos
Besouros , Animais , Distribuição Animal , Estruturas Animais , Tamanho do Órgão , China , Tamanho Corporal
20.
Sensors (Basel) ; 22(20)2022 Oct 12.
Artigo em Inglês | MEDLINE | ID: mdl-36298104

RESUMO

Aiming at the problems of single detection target of existing distributed denial of service (DDoS) attacks, incomplete detection datasets and privacy caused by shared datasets, we propose a trusted multi-domain DDoS detection method based on federated learning. Firstly, we divide the types of DDoS attacks into different sub-attacks, design the federated learning dataset for DDoS detection in each domain, and use them to realize a more comprehensive detection method of DDoS attacks on the premise of protecting the data privacy of each domain. Secondly, in order to improve the robustness of federated learning and alleviate poisoning attack, we propose a reputation evaluation method based on blockchain, which estimates interaction reputation, data reputation and resource reputation of each participant comprehensively, so as to obtain the trusted federated learning participants and identify the malicious participants. In addition, we also propose a combination scheme of multi-domain detection and distributed knowledge base and design a feature graph of malicious behavior based on a knowledge graph to realize the memory of multi-domain feature knowledge. The experimental results show that the accuracy of most categories of the multi-domain DDoS detection method can reach more than 95% with the protection of datasets, and the reputation evaluation method proposed in this paper has a higher ability to identify malicious participants against the data poisoning attack when the threshold is set to 0.6.


Assuntos
Aprendizagem , Privacidade , Humanos , Aprendizado de Máquina
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA