Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 461
Filtrar
1.
HLA ; 103(6): e15562, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38887867
2.
HLA ; 103(6): e15546, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38887907

RESUMO

A nucleotide deletion in the residue 371 of HLA-A*11:01:01:01 results in a novel allele HLA-A*11:466N.


Assuntos
Alelos , Sequência de Bases , Éxons , Antígeno HLA-A11 , Teste de Histocompatibilidade , Humanos , Taiwan , Antígeno HLA-A11/genética , Análise de Sequência de DNA , Deleção de Sequência , Códon , Povo Asiático/genética , Alinhamento de Sequência
3.
Nanotechnology ; 2024 Jun 11.
Artigo em Inglês | MEDLINE | ID: mdl-38861968

RESUMO

Extracellular vesicles (EVs) have great potential in oncology drug delivery because of their unique biological origin. Apoptotic bodies, as a member of the EV family, offer distinct advantages in terms of size, availability and membrane properties, but have been neglected for a long time. Here, using apoptotic bodies and Ti2N nanosheets, we propose a novel drug delivery system (Ti2N-DOX@ABs), which exhibit a homologous targeting ability for dual-strategy tumor therapy with intrinsic biological property. The experimental results demonstrate that such a drug delivery system possess a drug loading capacity of 496.5% and a near-infrared photothermal conversion efficiency of 38.4%. In addition, the investigation of drug internalization process proved that Ti2N-DOX@ABs featured a supreme biocompatibility. Finally, the dual-strategy response based on photothermal and chemotherapeutic effects was studied under near-infrared laser radiation. This work explores the opportunity of apoptosome membranes in nanomedicine systems, which provides a technical reference for cancer-oriented precision medicine research. .

4.
HLA ; 103(6): e15551, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38837672

RESUMO

One nucleotide substitution in codon 130 of HLA-DQB1*03:03:02:01 results in a novel allele HLA-DQB1*03:96.


Assuntos
Alelos , Códon , Éxons , Cadeias beta de HLA-DQ , Teste de Histocompatibilidade , Humanos , Cadeias beta de HLA-DQ/genética , Taiwan , Sequência de Bases , Povo Asiático/genética , Análise de Sequência de DNA/métodos , Polimorfismo de Nucleotídeo Único
5.
Front Genet ; 15: 1372309, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38756448

RESUMO

The cool temperate origin of gymnosperm Taxus species in East Asia is specifically diverse and widespread. Certain lineages have managed to extend their distribution further south to subtropical and tropical islands such as Taiwan and the Philippines. To address questions including whether these insular lineages, recently identified as T. phytonii, have become genetically distinct from each other and from their continental relatives, and when and how they colonized their residing islands, we sampled over 11 populations, covering 179 Taxus individuals from Taiwan and the Philippines. Using four cpDNA and one nuclear marker, we showed in population genetic and genealogical analyses that the two insular lineages were genetically distinct from each other and also from other continental Taxus and that they represented each other's closest relative. Estimated with the coalescent-based multi-type tree (MTT) analyses, we inferred an origin of Taiwanese T. phytonii more ancient than 2.49 Mya and that of Philippine T. phytonii more ancient than 1.08 Mya. In addition, the divergence demographic history revealed by both MTT and isolation with migration (IM) analyses indicated the presence of recent post-split migrations from a continental taxon, T. mairei, to Taiwanese T. phytonii, as well as from Taiwanese T. phytonii to Philippine T. phytonii. Overall, this study suggests Taiwan as a stepping stone through which the temperate-origin yew trees can extend their distributions to tropical regions such as the Philippines.

7.
Adv Sci (Weinh) ; : e2309257, 2024 May 05.
Artigo em Inglês | MEDLINE | ID: mdl-38704697

RESUMO

The urgent demand for addressing dye contaminants in water necessitates the development of microrobots that exhibit remote navigation, rapid removal, and molecular identification capabilities. The progress of microrobot development is currently hindered by the scarcity of multifunctional materials. In this study, a plasmonic MXene hydrogel (PM-Gel) is synthesized by combining bimetallic nanocubes and Ti3C2Tx MXene through the rapid gelation of degradable alginate. The hydrogel can efficiently adsorb over 60% of dye contaminants within 2 min, ultimately achieving a removal rate of >90%. Meanwhile, the hydrogel exhibits excellent sensitivity in surface enhanced Raman scattering (SERS) detection, with a limit of detection (LOD) as low as 3.76 am. The properties of the plasmonic hydrogel can be further adjusted for various applications. As a proof-of-concept experiment, thermosensitive polymers and superparamagnetic particles are successfully integrated into this hydrogel to construct a versatile, light-responsive microrobot for dye contaminants. With magnetic and optical actuation, the robot can remotely sample, identify, and remove pollutants in maze-like channels. Moreover, light-driven hydrophilic-hydrophobic switch of the microrobots through photothermal effect can further enhance the adsorption capacity and reduced the dye residue by up to 58%. These findings indicate of a broad application potential in complex real-world environments.

8.
Animals (Basel) ; 14(9)2024 May 02.
Artigo em Inglês | MEDLINE | ID: mdl-38731375

RESUMO

Global warming has a significant impact on the dairy farming industry, as heat stress causes reproductive endocrine imbalances and leads to substantial economic losses, particularly in tropical-subtropical regions. The Holstein breed, which is widely used for dairy production, is highly susceptible to heat stress, resulting in a dramatic reduction in milk production during hot seasons. However, previous studies have shown that cells of cows produced from reconstructed embryos containing cytoplasm (o) from Taiwan yellow cattle (Y) have improved thermotolerance despite their nuclei (n) being derived from heat-sensitive Holstein cattle (H). Using spindle transfer (ST) technology, we successfully produced ST-Yo-Hn cattle and proved that the thermotolerance of their ear fibroblasts is similar to that of Y and significantly better than that of H (p < 0.05). Despite these findings, the genes and molecules responsible for the different sensitivities of cells derived from ST-Yo-Hn and H cattle have not been extensively investigated. In the present study, ear fibroblasts from ST-Yo-Hn and H cattle were isolated, and differentially expressed protein and gene profiles were compared with or without heat stress (hs) (42 °C for 12 h). The results revealed that the relative protein expression levels of pro-apoptotic factors, including Caspase-3, -8, and -9, in the ear fibroblasts from the ST-Yo-Hn-hs group were significantly lower (p < 0.05) than those from the H-hs group. Conversely, the relative expression levels of anti-apoptotic factors, including GNA14 protein and the CRELD2 and PRKCQ genes, were significantly higher (p < 0.05) in the ear fibroblasts from the ST-Yo-Hn-hs group compared to those from the H-hs group. Analysis of oxidative phosphorylation-related factors revealed that the relative expression levels of the GPX1 gene and Complex-I, Complex-IV, CAT, and PGLS proteins were significantly higher (p < 0.05) in the ear fibroblasts from the ST-Yo-Hn-hs group compared to those from the H-hs group. Taken together, these findings suggest that ear fibroblasts from ST-Yo-Hn cattle have superior thermotolerance compared to those from H cattle due to their lower expression of pro-apoptotic factors and higher expression of oxidative phosphorylation and antioxidant factors. Moreover, this improved thermotolerance is attributed, at least partially, to the cytoplasm derived from more heat-tolerant Y cattle. Hence, using ST technology to produce more heat-tolerant H cattle containing Y cytoplasm could be a feasible approach to alleviate the negative impacts of heat stress on dairy cattle in tropical-subtropical regions.

9.
J Am Med Inform Assoc ; 31(6): 1268-1279, 2024 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-38598532

RESUMO

OBJECTIVES: Herbal prescription recommendation (HPR) is a hot topic and challenging issue in field of clinical decision support of traditional Chinese medicine (TCM). However, almost all previous HPR methods have not adhered to the clinical principles of syndrome differentiation and treatment planning of TCM, which has resulted in suboptimal performance and difficulties in application to real-world clinical scenarios. MATERIALS AND METHODS: We emphasize the synergy among diagnosis and treatment procedure in real-world TCM clinical settings to propose the PresRecST model, which effectively combines the key components of symptom collection, syndrome differentiation, treatment method determination, and herb recommendation. This model integrates a self-curated TCM knowledge graph to learn the high-quality representations of TCM biomedical entities and performs 3 stages of clinical predictions to meet the principle of systematic sequential procedure of TCM decision making. RESULTS: To address the limitations of previous datasets, we constructed the TCM-Lung dataset, which is suitable for the simultaneous training of the syndrome differentiation, treatment method determination, and herb recommendation. Overall experimental results on 2 datasets demonstrate that the proposed PresRecST outperforms the state-of-the-art algorithm by significant improvements (eg, improvements of P@5 by 4.70%, P@10 by 5.37%, P@20 by 3.08% compared with the best baseline). DISCUSSION: The workflow of PresRecST effectively integrates the embedding vectors of the knowledge graph for progressive recommendation tasks, and it closely aligns with the actual diagnostic and treatment procedures followed by TCM doctors. A series of ablation experiments and case study show the availability and interpretability of PresRecST, indicating the proposed PresRecST can be beneficial for assisting the diagnosis and treatment in real-world TCM clinical settings. CONCLUSION: Our technology can be applied in a progressive recommendation scenario, providing recommendations for related items in a progressive manner, which can assist in providing more reliable diagnoses and herbal therapies for TCM clinical task.


Assuntos
Algoritmos , Medicamentos de Ervas Chinesas , Medicina Tradicional Chinesa , Humanos , Medicina Tradicional Chinesa/métodos , Medicamentos de Ervas Chinesas/uso terapêutico , Sistemas de Apoio a Decisões Clínicas , Diagnóstico Diferencial , Síndrome , Conjuntos de Dados como Assunto , Prescrições de Medicamentos
10.
Brief Bioinform ; 25(3)2024 Mar 27.
Artigo em Inglês | MEDLINE | ID: mdl-38605639

RESUMO

The accurate identification of disease-associated genes is crucial for understanding the molecular mechanisms underlying various diseases. Most current methods focus on constructing biological networks and utilizing machine learning, particularly deep learning, to identify disease genes. However, these methods overlook complex relations among entities in biological knowledge graphs. Such information has been successfully applied in other areas of life science research, demonstrating their effectiveness. Knowledge graph embedding methods can learn the semantic information of different relations within the knowledge graphs. Nonetheless, the performance of existing representation learning techniques, when applied to domain-specific biological data, remains suboptimal. To solve these problems, we construct a biological knowledge graph centered on diseases and genes, and develop an end-to-end knowledge graph completion framework for disease gene prediction using interactional tensor decomposition named KDGene. KDGene incorporates an interaction module that bridges entity and relation embeddings within tensor decomposition, aiming to improve the representation of semantically similar concepts in specific domains and enhance the ability to accurately predict disease genes. Experimental results show that KDGene significantly outperforms state-of-the-art algorithms, whether existing disease gene prediction methods or knowledge graph embedding methods for general domains. Moreover, the comprehensive biological analysis of the predicted results further validates KDGene's capability to accurately identify new candidate genes. This work proposes a scalable knowledge graph completion framework to identify disease candidate genes, from which the results are promising to provide valuable references for further wet experiments. Data and source codes are available at https://github.com/2020MEAI/KDGene.


Assuntos
Disciplinas das Ciências Biológicas , Reconhecimento Automatizado de Padrão , Algoritmos , Aprendizado de Máquina , Semântica
11.
Tzu Chi Med J ; 36(2): 166-174, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38645783

RESUMO

Objectives: It is thought that Taiwanese indigenous people were the "first people" to populate Taiwan (Formosa) having been there for over 5000 years, preceding the Dutch colonization (from 1624 to 1662) and Spanish colonization (from 1626 to 1642). Taiwan's indigenes, represented by Austronesian language speakers, currently constitute approximately 2% of the total population in Taiwan. It is unknown whether they evolved from Taiwan's Paleolithic or Neolithic cultures, arrived during or after the Neolithic period from China or Southeast Asia or both. HLA studies on the Taiwanese indigenous population have found several intriguing genetic information showing one or two relatively frequently observed alleles and a small number of relatively less frequently observed ones. We report here a relatively frequently observed HLA-C*07:359 allele in the Taiwanese indigenous population, its linkage with HLA-B*39:01, and its probable associated HLA haplotype in two Taiwanese indigenous families. HLA-C*07:359 is a rarely observed allele in the HLA-C locus in the world populations. The objective of this study is to report the allele HLA-C*07:359 that is more frequently found in the Taiwanese population, especially in the Taiwanese indigenous people, to demonstrate that it has a close linkage with HLA-B*39:01 allele in the HLA-B locus and to show the plausible deduced HLA-A-C-B-DRB1-DQB1 haplotypes in association with HLA-C*07:359 in two families of Taiwanese indigenous unrelated individuals. Materials and Methods: The samples were peripheral whole blood, with dipotassium ethylenediaminetetraacetic acid and/or acid citrate dextrose anticoagulation additives. The sequence-based typing method was employed to confirm the low incidence of the allele of HLA-C*07:359 observed in Taiwanese. Polymerase chain reaction was carried out to amplify exons 2, 3, and 4 of the HLA-A,-B,-C,-DRB1 and-DQB1 loci with group-specific primer sets. Amplicons were sequenced using the BigDye Terminator Cycle Sequencing Ready Reaction Kit in both directions according to the manufacturer's protocol. Results: C*07:359 is an uncommon allele in the HLA-C locus in the world general population, according to our literature review. However, in this study, it is observed in the general Taiwanese population (frequency 0.41%), especially in the Taiwanese indigenous people at a frequency of 0.23%. In addition, we deduced two probable HLA haplotypes in association with C*07:359 in two indigenous families: A*24:02-C*07:359-B*39:01-DRB1*04:36 and A*24:02-C*07:359-B*39:01-DRB1*04:04. Conclusion: The two deduced HLA haplotypes associated with the uncommon C*07:359 allele that we report here are valuable for HLA tissue typing laboratories for reference purposes and for stem cell transplantation donor search coordinators to determine the likelihood of finding compatible donors in unrelated bone marrow donor registries for patients bearing the uncommon HLA allele. Since C*07:359 was found mostly in the Taiwanese indigenous population, we think the allele and its haplotypes we report here are important in population and anthropological studies.

12.
HLA ; 103(4): e15473, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38575364
14.
Front Immunol ; 15: 1342658, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38680495

RESUMO

Objectives: Inflammatory cytokines (ICs) play an important role in erectile dysfunction (ED). Previous studies have demonstrated that most ED patients have high levels of tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) and interleukin-8 (IL-8). The causality between 41 ICs and ED is investigated using the Mendelian randomization (MR) approach. Methods: Single nucleotide polymorphisms (SNPs) exposure data of 41 ICs came from a genome-wide association study (GWAS) of 8293 subjects. At the same time, the FINNGEN R9 database provided the ED outcome data containing 2205 ED patients and 164104 controls. MR-Egger (ME), inverse variance weighting (IVW), and weighted median (WM) were applied to conduct the MR study and IVW was taken as the main criterion. Results: From a genetic perspective, the increase of interferon-inducible protein-10 (IP-10) level significantly increased the risk of ED (P=0.043, odds ratio (OR)=1.269, 95% confidence interval (95%CI): 1.007-1.600), while the increase of interleukin-1 receptor antagonist (IL-1RA) markedly decreased the risk of ED (P=0.037, OR=0.768, 95%CI: 0.600-0.984). Meanwhile, IP-10 (p=0.099) and IL-1RA (p=0.135) failed to demonstrate causality in reverse MR analysis. Conclusions: Changes in ICs levels will significantly affect the risk of ED, especially IP-10 as a risk component for ED and IL-1RA as a protective component for ED. In the future, we can achieve targeted treatment and prevention of ED by intervening with specific inflammatory factors.


Assuntos
Citocinas , Disfunção Erétil , Estudo de Associação Genômica Ampla , Análise da Randomização Mendeliana , Polimorfismo de Nucleotídeo Único , Humanos , Masculino , Disfunção Erétil/genética , Citocinas/genética , Predisposição Genética para Doença , Mediadores da Inflamação/metabolismo , Quimiocina CXCL10/genética
15.
Oncol Rep ; 51(6)2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38639182

RESUMO

Following the publication of the above article, an interested reader drew to the authors' attention that the ß­actin control blots featured in Figs. 5A and 6A appeared to be strikingly similar. Upon examining their original data, the authors have realized that the ß­actin blots for Fig. 5A were inadvertently chosen incorrectly. The corrected version of Fig. 5 is shown opposite. Note that the error made in uploading the incorrect version of this figure did not affect the overall conclusions reported in the paper. All the authors agree with the publication of this corrigendum, and are grateful to the Editor of Oncology Reports for allowing them the opportunity to publish this. They also apologize to the readership for any inconvenience caused. [Oncology Reports 1521­1528, 2017; DOI: 10.3892/or.2017.5378].

16.
Bone Marrow Transplant ; 59(6): 849-857, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38454131

RESUMO

Hematopoietic stem cell (HSC) transplantation, using either bone marrow (BM) or peripheral blood stem cells (PBSC), is a well-established therapy for various hematologic and non-hematologic diseases. However, the long-term health outcomes after HSC donation remain a major concern for several potential donors. Thus, we aimed to conduct a matched cohort study of 5003 unrelated donors (1099 BM and 3904 PBSC) and randomly selected 50,030 matched controls based on age, sex, and resident area from the donor registry between 1998 and 2018. The medical insurance claims of all the participants were retrieved from the Taiwan National Health and Welfare Data Science Center after de-identification. Our findings revealed no differences in the incidence of cancer, death, and catastrophic diseases between HSC donors and matched healthy participants during long-term follow-up. Kaplan-Meier curves depicting the cumulative incidence of cancer and overall mortality throughout the follow-up period also demonstrated similar outcomes between donors and non-donors. In conclusion, our results indicate that HSC donation, whether through BM or PBSC, is safe and not associated with an increased risk of cancer, death, or catastrophic diseases. These findings provide valuable information for counseling potential HSC donors and for long-term management of HSC donor health.


Assuntos
Transplante de Células-Tronco Hematopoéticas , Neoplasias , Humanos , Neoplasias/terapia , Masculino , Feminino , Seguimentos , Adulto , Transplante de Células-Tronco Hematopoéticas/métodos , Pessoa de Meia-Idade , Estudos de Coortes , Doença Catastrófica , Taiwan/epidemiologia , Doadores de Tecidos
17.
HLA ; 103(3): e15423, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38433704

RESUMO

Nucleotide substitutions in codons -1 and 84 of HLA-B*40:01:01 result in a novel allele, HLA-B*40:01:35.


Assuntos
Povo Asiático , Genes MHC Classe I , Humanos , Alelos , Povo Asiático/genética , Antígenos HLA-B/genética , Nucleotídeos
18.
HLA ; 103(2): e15414, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38372625

RESUMO

Two nucleotide substitutions in exon 3 of HLA-A*02:07:01:01 result in the novel allele, HLA-A*02:840.


Assuntos
Povo Asiático , Antígenos HLA-A , Nucleotídeos , Humanos , Alelos , Povo Asiático/genética , Éxons/genética , Antígenos HLA-A/genética , Taiwan
19.
HLA ; 103(2): e15398, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38372585

RESUMO

One nucleotide substitution in codon 214 of HLA-C*03:04:01:01 results in a novel allele, HLA-C*03:649.


Assuntos
Antígenos HLA-C , Humanos , Sequência de Bases , Antígenos HLA-C/genética , Alelos , Éxons/genética , Códon , Taiwan , Análise de Sequência de DNA , Teste de Histocompatibilidade
20.
HLA ; 103(2): e15375, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38342774

RESUMO

Nucleotide substitution in codon 129 of HLA-B*15:01:01:01 results in a novel allele, HLA-B*15:01:17.


Assuntos
Genes MHC Classe I , Antígenos HLA-B , Humanos , Alelos , Antígenos HLA-B/genética , Códon , Povo Asiático/genética , Taiwan , Análise de Sequência de DNA/métodos , Teste de Histocompatibilidade/métodos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...