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1.
Ying Yong Sheng Tai Xue Bao ; 32(10): 3487-3496, 2021 Oct.
Artigo em Chinês | MEDLINE | ID: mdl-34676709

RESUMO

Forests in Beijing exhibit vulnerability to increasing stress of extreme drought in recent years. To investigate the drought tolerance of different tree species, we chose three tree species (Larix principis-rupprechtii, Pinus tabuliformis, and Quercus wutaishanica) from the forest of Dongling Mountain in Beijing and used dendroecological method to analyze the relationship between radial growth and climate, as well as their resistance and resilience to extreme drought events. Our results showed that the radial growth of L. principis-rupprechtii and P. tabuliformis was significantly negatively correlated with monthly mean temperature from May to June, but that of Q. wutaishanica was significantly negatively correlated with monthly mean temperature only in May. The radial growth of L. principis-rupprechtii was significantly positively correlated with monthly mean precipitation in June, monthly mean relative humidity from May to June and August to September. The radial growth of P. tabuliformis was significantly positively correlated with monthly mean precipitation and monthly mean relative humidity from June to August. The radial growth of Q. wutaishanica was significantly positively correlated with monthly mean precipitation in February and May, and monthly mean relative humidity in May. The radial growth of all the three species was significantly positively correlated with monthly mean SPEI (standardized precipitation evapotranspiration index) from May to July. L. principis-rupprechtii was least drought tolerant, as indicated by the greatest growth reduction (46.6%-69.6%), lowest resistance (0.534, 0.304, 0.530) and resilience (0.686, 0.570, 0.753) during the three extreme drought events occurred in the 1994, 2001-2002, and 2007. In contrast, tree growth of Q. wutaishanica showed the highest drought resistance in 2007, whereas no significant differences were observed between other two species. Extreme drought events caused by continuous high temperature and reduced precipitation during the growing season accounted for the reduction in tree radial growth. The various physiological and ecological strategies of tree species were the possible reasons for the difference in drought tolerance. Our results could provide a basis for the selection of suitable afforestation tree species and the formulation of forest protection mea-sures to maintain forest ecosystem functions and services under the background of undergoing climate change.


Assuntos
Secas , Ecossistema , Pequim , China , Mudança Climática
2.
Int J Med Sci ; 18(9): 1999-2007, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33850470

RESUMO

Precartilaginous stem cells (PCSCs) are able to initiate chondrocyte and bone development. The present study aimed to investigate the role of miR-143 and the underlying mechanisms involved in PCSC proliferation. In a rat growth plate injury model, tissue from the injury site was collected and the expression of miR-143 and its potential targets was determined. PCSCs were isolated from the rabbits' distal epiphyseal growth plate. Cell viability, DNA synthesis, and apoptosis were determined with MTT, BrdU, and flow cytometric analysis, respectively. Real time PCR and western blot were performed to detect the mRNA and protein expression of the indicated genes. Indian hedgehog (IHH) was identified as a target gene for miR-143 with luciferase reporter assay. Decreased expression of miR-143 and increased expression of IHH gene were observed in the growth plate after injury. miR-143 mimics decreased cell viability and DNA synthesis and promoted apoptosis of PCSCs. Conversely, siRNA-mediated inhibition of miR-143 led to increased growth and suppressed apoptosis of PCSCs. Transfection of miR-143 decreased luciferase activity of wild-type IHH but had no effect when the 3'-UTR of IHH was mutated. Furthermore, the effect of miR-143 overexpression was neutralized by overexpression of IHH. Our study showed that miR-143 is involved in growth plate behavior and regulates PCSC growth by targeting IHH, suggesting that miR-143 may serve as a novel target for PCSC-related diseases.


Assuntos
Lâmina de Crescimento/patologia , Proteínas Hedgehog/genética , MicroRNAs/metabolismo , Fraturas Salter-Harris/patologia , Células-Tronco/metabolismo , Animais , Apoptose/genética , Proliferação de Células/genética , Células Cultivadas , Modelos Animais de Doenças , Lâmina de Crescimento/citologia , Lâmina de Crescimento/crescimento & desenvolvimento , Humanos , Cultura Primária de Células , Coelhos , Ratos , Fraturas Salter-Harris/terapia , Transplante de Células-Tronco
3.
Environ Sci Pollut Res Int ; 28(27): 36828-36836, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33710490

RESUMO

Influenza is an acute respiratory disease that seriously threatens public health. The occurrence of influenza has been proved to be related to a variety of meteorological factors. However, less attention has been paid to the effect of relative humidity (RH) on different types of influenza, especially in subtropical regions. Daily data on laboratory-confirmed influenza cases, weather variables, and air pollutants in Hefei covering the 2014-2019 period were collected. The seasonality and trend of daily influenza cases were explored by the time series seasonal decomposition method. Generalized linear model was fitted in conjunction with distributed lag nonlinear model to quantify the associations of RH with influenza A and influenza B. Subgroup analyses were conducted by sex, age (0-4, 5-17, and ≥18 years), and season (cold and warm seasons). A total of 5238 influenza cases including 2847 influenza A cases and 2391 influenza B cases were recorded. The epidemic of influenza presented a distinct seasonal pattern, and the number of daily influenza cases increased steadily since 2016. High RH was related to an increased risk of influenza A (maximum RR = 1.683, 95%CI: 1.365-2.076), especially among males, females, and school-age children. Low RH was associated with an increased risk of influenza B (maximum RR = 1.252, 95%CI: 1.169-1.340). The contrasting relationships of RH with influenza A and B remained significant in cold seasons. High RH and low RH were significantly associated with the increased risk of influenza A and B, respectively. The findings of our study may provide clues for proposing new effective interventions.


Assuntos
Poluentes Atmosféricos , Influenza Humana , Adolescente , Criança , Feminino , Humanos , Umidade , Influenza Humana/epidemiologia , Masculino , Estações do Ano , Tempo (Meteorologia)
4.
Food Funct ; 12(5): 2211-2224, 2021 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-33595580

RESUMO

As a functional bowel disorder, irritable bowel syndrome (IBS), especially IBS-diarrhea (IBS-D), affects approximately 9-20% of the population worldwide. Classical treatments for IBS usually result in some side effects and intestinal microbial disorders, which inhibit the clinical effects. Natural edible medicines with beneficial effects and few side effects have received more attention in recent years. Puerarin is the main active ingredient in pueraria and has been used in China to treat splenasthenic diarrhea and as a natural food in folk medicine for hundreds of years. However, there have been no reports of using puerarin in the treatment of IBS-D, and the underlying mechanism is also still unclear. In this study, a comprehensive model that could reflect the symptoms of IBS-D was established by combining neonatal maternal separation (NMS) and adult colonic acetic acid stimulation (ACAAS) in rats. The results showed that puerarin could reverse the abdominal pain and diarrhea in IBS-D rats. The therapeutic effect was realized by regulating the richness of the gut microbiota to maintain the stabilization of the intestinal micro-ecology. Furthermore, the possible mechanism might be related to the activity of the hypothalamic-pituitary-adrenal (HPA) axis by the suppressed expression of corticotropin-releasing hormone receptor (CRF) 1. At the same time, intestinal function was improved by enhancing the proliferation of colonic epithelial cells by upregulating the expression of p-ERK/ERK and by repairing the colonic mucus barrier by upregulating occludin expression. All these results suggest that puerarin could exert excellent therapeutic effects on IBS-D.


Assuntos
Colo , Diarreia/metabolismo , Síndrome do Intestino Irritável/metabolismo , Isoflavonas/farmacologia , Pueraria/química , Animais , Comportamento Animal/efeitos dos fármacos , Colo/efeitos dos fármacos , Colo/metabolismo , Defecação/efeitos dos fármacos , Feminino , Microbioma Gastrointestinal/efeitos dos fármacos , Masculino , Ratos , Ratos Sprague-Dawley
5.
Inorg Chem ; 60(5): 3156-3164, 2021 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-33591741

RESUMO

A bifunctional ligand strategy for modification of the functional pores is of great significance in the structural design of metal-organic frameworks (MOFs). Herein, a new 2-fold interpenetrated "pillared-layer" 3D Co-MOF, {[Co(HL)(4,4'-bipy)]·DMF·2H2O}n (1), was successfully synthesized by using two kinds of ligands, imidazolecarboxylic acid and pyridine. The metal-carboxylic layers are pillared by the 4,4'-bipy ligand, displaying a 3D framework with rectangular 3D channels (high BET surface of 190.9 m2 g-1 and maximum aperture of 3.9 Å) that are decorated with abundant uncoordinated N and O atoms. 1 shows good water stability and thermal stability (320 °C). The proper pores and active sites endowed 1 with a selective adsorption of Congo red in aqueous solution. In addition, a high CO2 adsorption capacity and an excellent CO2 chemical conversion were observed.

6.
J Pediatr Nurs ; 58: e13-e18, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33384221

RESUMO

PURPOSE: To develop a Chinese version of the State Behavioral Scale (SBS-C) and to evaluate its reliability and validity for sedation assessment in mechanically ventilated children in China. DESIGN AND METHODS: Cross-sectional survey design was used in a two-part study of mechanically ventilated children, aged 6 weeks to 6 years. A total 172 children and 145 children were recruited from Jan-Dec 2017 and Jan-Dec 2018, respectively, at a tertiary care pediatric hospital in southeast China. Following translation of the scale, the content validity was established by the content validity index, internal consistency was established using Cronbach's α, and construct validity was confirmed by correlation with a similar well-recognized scale, the COMFORT Scale-Chinese version (CS-C). RESULTS: The content validity index for the seven scale dimensions ranged from 0.83 to 1.0 and for the full scale was 0.932. In the first study, Cronbach's α for the full SBS-C was 0.986 and for the seven scale dimensions ranged from 0.973 to 0.983; similarly, in the second study, Cronbach's α for the full scale was 0.983 and for the seven dimensions ranged from 0.977 to 0.987. The correlation coefficient between scores of the SBS-C and the CS-C was 0.919 (P < .01). CONCLUSIONS: The SBS-C is valid, reliable, and responsive and is suitable for assessing sedation in mechanically ventilated children in China. IMPLICATIONS FOR PRACTICE: The SBS-C can be used for sedation assessment in mechanically ventilated children in China, guiding decision making and the provision of care, and optimizing patient safety.


Assuntos
Respiração Artificial , Criança , China , Estudos Transversais , Humanos , Psicometria , Reprodutibilidade dos Testes , Inquéritos e Questionários
7.
Chin J Integr Med ; 27(5): 369-374, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33000415

RESUMO

OBJECTIVE: To observe the effects and safety of Tongyan Spray () on the range and time of hyoid motion in patients with ischemic post-stroke dysphagia. METHODS: Seventy-two patients with ischemic post-stroke dysphagia were selected and randomly assigned to a treatment group (36 cases) and a control group (36 cases) by a random number table from January 2013 to October 2014. All patients swallowed 4 kinds of barium meals with different traits respectively, and each patient underwent video fluoroscopy (VF) examination twice. In the treatment group, Tongyan Spray was sprayed to the pharynx on both sides and the middle part once respectively. The spray was applied 30 min before the second examination. Purified water at room temperature was used as placebo in the control group. The changes in the range and time of hyoid motion in both groups were observed before and after treatment. RESULTS: Six patients dropped out in each group, and 60 patients completed the study and were included in the final analysis. Significant improvement was observed in the range of superior hyoid excursion distance and the time of hyoid motion in the treatment group compared with the control group (P<0.05). There were no obvious adverse reactions observed in oral mucosa in both groups during the whole study. CONCLUSION: Tongyan Spray was an effective and safe medicine for improving swallowing function in patients with ischemic post-stroke dysphagia.

8.
J Asian Nat Prod Res ; 23(5): 498-503, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-32441112

RESUMO

A new andirobin-type limonoid with modified furan ring, khaysenelide K (1), together with a known analogue (2), was isolated from the stem barks of Khaya senegalensis. The structure and absolute configuration of 1 were elucidated by a combination of 1D and 2D NMR, HRESIMS, and single-crystal X-ray diffraction using mirror Cu-Kα radiation. Compound 1 showed moderate NO inhibitory activity in LPS-activated RAW 264.7 macrophages with IC50 value of 27.74 ± 0.68 µM.[Formula: see text].


Assuntos
Limoninas , Meliaceae , Furanos , Limoninas/farmacologia , Espectroscopia de Ressonância Magnética , Estrutura Molecular
9.
BMC Med Genet ; 21(1): 163, 2020 08 18.
Artigo em Inglês | MEDLINE | ID: mdl-32811452

RESUMO

BACKGROUND: Nonalcoholic fatty liver disease (NAFLD) is one of the most common causes of chronic liver disease worldwide. Current studies have shown that PNPLA3 (Patatin-like phospholipase domain containing 3) rs738409 G/C gene polymorphism is associated with adult nonalcoholic fatty liver disease [1, 2].But there is no consensus on the relationship between PNPLA3 rs738409 G/C gene polymorphism and children NAFLD due to differences in population samples. To this end, a meta-analysis of published research is conducted to comprehensively assess the relationship between PNPLA3 gene polymorphism and NAFLD in children. METHODS: We searched MEDLINE, PubMed, EMBASE, and CENTRAL databases from inception to May 2019. Case-control studies assessing the relationship between PNPLA3 rs738409 G/C gene polymorphism with non-alcoholic fatty liver disease in children were selected according to inclusion and exclusion criteria. Random effects model was used to quantify the association between the PNPLA3 rs738409 G/C gene polymorphism and the susceptibility of children's NAFLD. Fixed effects model was used to quantify the relationship between the PNPLA3 rs738409 G/C gene polymorphism and the severity of NAFLD in children. The Stata 12.0 software was employed for data analysis. RESULTS: A total of nine case-control studies were included in this meta-analysis containing data of 1173 children with NAFLD and 1792 healthy controls. Five studies compared NAFLD children and non-NAFLD healthy populations. Statistical analysis showed that PNPLA3 gene polymorphism was significantly associated with children's NAFLD in the allele contrast, dominant, recessive and over dominant models (G vs C,OR = 3.343, 95% CI = 1.524-7.334; GG + GC vs CC,OR = 3.157, 95% CI = 1.446-6.892;GG vs GC + CC,OR = 5.692, 95% CI = 1.941-16.689; GG + CC vs GC,OR = 2.756, 95% CI = 1.729-4.392). Four case-control studies compared Children with nonalcoholic fatty liver (NAFL) and children with nonalcoholic steatohepatitis (NASH). The results showed that the PNPLA3 gene polymorphism was also significantly associated with the severity of NAFLD in children in recessive gene model (GG vs GC + CC,OR = 14.43, 95% CI = 5.985-34.997); The Egger's test revealed no significant publication bias. CONCLUSIONS: Meta-analysis showed that PNPLA3 gene polymorphism was significantly associated with susceptibility and severity of NAFLD in children.


Assuntos
Estudos de Associação Genética , Predisposição Genética para Doença , Lipase/genética , Proteínas de Membrana/genética , Hepatopatia Gordurosa não Alcoólica/genética , Polimorfismo de Nucleotídeo Único/genética , Criança , Feminino , Humanos , Masculino , Razão de Chances , Viés de Publicação
10.
Biosci Rep ; 40(5)2020 05 29.
Artigo em Inglês | MEDLINE | ID: mdl-32319512

RESUMO

Precartilaginous stem cells (PCSCs) are adult stem cells that can initiate chondrocytes and bone development. In the present study, we explored whether miR-132/212 was involved in the proliferation of PCSCs via Hedgehog signaling pathway. PCSCs were isolated and purified with the fibroblast growth factor receptor-3 (FGFR-3) antibody. Cell viability, DNA synthesis and apoptosis were measured using MTT, BrdU and flow cytometric analysis. The mRNA and protein expression were detected by real-time PCR and Western blot, respectively. The target gene for miR-132/212 was validated by luciferase reporter assay. Results showed that transfection with miR-132/212 mimic significantly increased cell viability and DNA synthesis, and inhibited apoptosis of PCSCs. By contrast, miR-132/212 inhibitor could suppress growth and promote apoptosis of PCSCs. Luciferase reporter assays indicated that transfection of miR-132/212 led to a marked reduction of luciferase activity, but had no effect on PTCH1 3'-UTR mutated fragment, suggesting that Patched1 (PTCH1) is a target of miR-132/212. Furthermore, treatment with miR-132/212 mimics obviously increased the protein expression of Indian hedgehog (Ihh) and parathyroid hormone related protein (PTHrP), which was decreased after treatment with Hedgehog signaling inhibitor, cyclopamine. We also found that inhibition of Ihh/PTHrP signaling by cyclopamine significantly suppressed growth and DNA synthesis, and induced apoptosis in PCSCs. These findings demonstrate that miR-132/212 promotes growth and inhibits apoptosis in PCSCs by regulating PTCH1-mediated Ihh/PTHrP pathway, suggesting that miR-132/212 cluster might serve as a novel target for bone diseases.


Assuntos
Células-Tronco Adultas/fisiologia , Proliferação de Células/genética , Condrócitos/fisiologia , MicroRNAs/metabolismo , Animais , Apoptose/efeitos dos fármacos , Cartilagem Articular/citologia , Proliferação de Células/efeitos dos fármacos , Células Cultivadas , Proteínas Hedgehog/antagonistas & inibidores , Proteínas Hedgehog/metabolismo , Família Multigênica , Proteína Relacionada ao Hormônio Paratireóideo/metabolismo , Receptor Patched-1/metabolismo , Cultura Primária de Células , Coelhos , Alcaloides de Veratrum/farmacologia
11.
Inorg Chem ; 59(6): 3912-3918, 2020 Mar 16.
Artigo em Inglês | MEDLINE | ID: mdl-32133845

RESUMO

Metal-organic frameworks (MOFs) with zeolitic structure process fantastic structural metrics and display excellent applications in many aspects; however, they are difficult to assemble. Herein, on the basis of a tetrahedral Zn4O cluster and a 3,5-bis(2,4-dicarboxylphenyl)nitrobenzene (H4L) ligand, a novel sodalite (SOD) zeolitic cluster framework (ZCF), {[Zn4(O)(L)2]·4DMF·6H2O}n (ZCF-1; DMF = N,N-dimethylformamide), has been hydrothermally synthesized. Compared with the traditional SOD zeolitic framework of ZIF-8, the cage size of ZCF-1 is dramatically improved from 16.9 to 29.2 Å by the introduction of longer tetradentate carboxylic ligands. Moreover, because of the functional nitryl group in the ligand, ZCF-1 exhibits a high CO2/CH4 selectivity. Hence, further research on the chemical fixation of CO2 is implemented, which reveals excellent heterogeneous catalytic activity and durability. Especially, a unique selective catalytic performance with a high yield of 88.3% on a larger molecular size reactant (glycidyl phenyl ether) is observed, which is attributed to the stereoselection effect of the superlarge cage and abundant Zn4O catalytic clusters in ZCF-1.

12.
Complement Ther Med ; 48: 102248, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31987254

RESUMO

INTRODUCTION: Diabetes is closely related with depression. Gardenia fructus antidepressant formula (GFAF) is a Chinese herbal medicine that may be beneficial for depression in diabetic patients. This study aimed to evaluate the efficacy and safety of GFAF for depression in diabetes patients. METHODS: Randomized controlled trials (RCTs) were included. The patients were diagnosed as having diabetes mellitus with depression. The experimental interventions included GFAF alone or combined with another active treatment. The control interventions included no treatment, placebo or another active treatment. The primary outcome was reduction in the Hamilton Depression Scale (HAMD) scores. Secondary outcomes included reduction in the Self-rating Depression Scale (SDS) scores, response rate, adverse events, etc. PubMed, Cochrane Library, China National Knowledge Infrastructure (CNKI), Wan fang database and Chinese Science and Technology Periodicals database (VIP) were searched from inception to May 2019 for potentially eligible studies. The meta-analysis was performed using RevMan 5.3 software. RESULTS: We identified 12 eligible RCTs including 822 diabetes patients with depression. Results of meta-analysis showed that the HAMD score was significantly reduced following GFAF treatment compared with no antidepressant treatment (SMD: -2.53, 95% CI: -4.80 to -0.27, P = 0.03). Another meta-analysis indicated that patients taking GFAF alone had lower HAMD scores compared with selective serotonin reuptake inhibitors (SSRI) treatment alone (SMD: -0.62, 95% CI: -1.07 to -0.18, P = 0.006). The HAMD scores in the GFAF plus SSRI treatment group were significantly decreased compared with the SSRI treatment group (SMD: -0.37, 95% CI: -0.69 to -0.06, P = 0.02). The same pattern of change was identified with the SDS scores. CONCLUSION: GFAF may be considered an alternative treatment for depression in patients with diabetes. However, more large-scale and well-designed RCTs are warranted.


Assuntos
Antidepressivos/uso terapêutico , Depressão/tratamento farmacológico , Diabetes Mellitus , Medicamentos de Ervas Chinesas/uso terapêutico , Gardenia , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto , Inquéritos e Questionários
13.
Cytometry B Clin Cytom ; 98(1): 28-35, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31313887

RESUMO

BACKGROUND: Extranodal natural killer (NK)/T-cell lymphoma, nasal type (ENKTL-N) is an aggressive lymphoma typically diagnosed by examining small biopsy specimens. Flow cytometry is very valuable for the diagnosis and classification of several kinds of hematolymphoid neoplasms but has not been widely used for diagnosing ENKTL-N. METHODS: We systematically investigated the flow cytometry characteristics of 26 solid tissue biopsy specimens of ENKTL-N at initial diagnosis and compared the results with those from reactive NK-cells in the nasal/nasopharyngeal region and peripheral blood. RESULTS: Our study revealed seven flow cytometry (FCM)-based characteristics for distinguishing between the neoplastic cells and reactive NK-cells, including (1) the proportion of NK-cells among total lymphocytes >10%; (2) forward scatter >105 ; (3) mean fluorescence intensity of CD56 > 5,000; (4) aberrant antigen expression or loss; (5) skewed killer cell immunoglobulin-like receptor repertoire; (6) homogenously positive for CD38; and (7) positive for CD30 or CD336. FCM-based immunophenotyping is a potentially feasible and convenient approach for discriminating cellular lineages, evaluating the activation status of NK-cells, and selecting potential therapy targets of ENKTL-N. CONCLUSIONS: Flow cytometry is very valuable for facilitating routine diagnosis, confirming clonality, predicting the cellular lineage, and guiding individual treatment for ENKTL-N. © 2019 International Clinical Cytometry Society.


Assuntos
Citometria de Fluxo/métodos , Imunofenotipagem/métodos , Células Matadoras Naturais/patologia , Linfoma Extranodal de Células T-NK/diagnóstico , ADP-Ribosil Ciclase 1/metabolismo , Adulto , Idoso , Biópsia/métodos , Antígeno CD56/metabolismo , Linhagem da Célula/fisiologia , Feminino , Humanos , Antígeno Ki-1/metabolismo , Células Matadoras Naturais/metabolismo , Linfoma Extranodal de Células T-NK/metabolismo , Masculino , Pessoa de Meia-Idade , Receptor 2 Desencadeador da Citotoxicidade Natural/metabolismo , Estudos Retrospectivos
14.
BMC Cancer ; 19(1): 1128, 2019 Nov 21.
Artigo em Inglês | MEDLINE | ID: mdl-31752753

RESUMO

BACKGROUND: Hepatocellular carcinoma (HCC) is the sixth-most common malignancy worldwide. Multiple previous studies have assessed the relationship between TM6SF2 gene polymorphism and the risk of developing HCC, with discrepant conclusions reached. To assess the association of TM6SF2 rs58542926 T/C gene polymorphism with liver cancer, we performed the current meta-analysis. METHODS: This study queried the MEDLINE, PubMed, EMBASE, and CENTRAL databases from inception to April 2019. Case-control studies assessing the relationship between TM6SF2 rs5854292 locus polymorphism and liver cancer were selected according to inclusion and exclusion criteria. The Stata 12.0 software was employed for data analysis. RESULTS: A total of 5 articles, encompassing 6873 patients, met inclusion criteria and were included in the meta-analysis. Statistical analysis showed that the TM6SF2 gene polymorphism was significantly associated with liver cancer in the allele contrast, dominant, recessive and over dominant models (T vs C, OR = 1.621, 95%CI 1.379-1.905; CT + TT vs CC. OR = 1.541, 95%CI 1.351-1.758; TT vs CT + CC, OR = 2.897, 95%CI 1.690-4.966; CC + TT vs TC, OR = 0.693, 95%CI 0.576-0.834). The Egger's test revealed no significant publication bias. CONCLUSION: The present findings suggest a significant association of TM6SF2 gene polymorphism with HCC risk in the entire population studied.


Assuntos
Carcinoma Hepatocelular/genética , Neoplasias Hepáticas/genética , Proteínas de Membrana/genética , Polimorfismo de Nucleotídeo Único , Estudos de Associação Genética , Predisposição Genética para Doença , Humanos
15.
Int J Pharm ; 570: 118644, 2019 Oct 30.
Artigo em Inglês | MEDLINE | ID: mdl-31465837

RESUMO

Colitis-associated colorectal cancer (CAC) is a common malignancy that develops in chronically inflamed mucosa and is usually accompanied by metastases at other sites. Puerarin, a natural isoflavone isolated from the root of the Pueraria lobata (Willd.) Ohwi, has potential anti-colon cancer activity. However, the poor solubility and low bioavailability of puerarin has restricted its application in the pharmaceutical industry. In the present study, pH-responsive alginate microspheres loaded with puerarin were prepared by emulsification/internal gelation for targeted treatment of colitis-associated colorectal cancer. Herein, puerarin, as an active drug, could participate in the construction of alginate microspheres with hydrogen bonding. The microspheres exhibited pH-responsive release behavior with little release of puerarin in simulated gastric fluid and high amounts (approximately 55%) of release in simulated colonic fluid. A fluorescence tracer indicated microspheres had high retention time of more than 20 h in the colon. Meanwhile, puerarin-loaded alginate microspheres not only significantly decreased the inflammatory response by downregulating the levels of pro-tumorigenic cytokines, but they reduced tumorigenesis and metastasis by inhibiting epithelial-mesenchymal transitions in AOM/DSS-induced colitis-associated colorectal cancer in mice. The overall results suggested that puerarin-loaded alginate microspheres could effectively inhibit development of colonic tumors, which could be developed as a promising therapeutic strategy for colitis-associated colorectal cancer.


Assuntos
Carcinogênese/efeitos dos fármacos , Colite/complicações , Colo/efeitos dos fármacos , Neoplasias do Colo/tratamento farmacológico , Neoplasias do Colo/etiologia , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/etiologia , Isoflavonas/farmacologia , Alginatos/química , Animais , Líquidos Corporais/efeitos dos fármacos , Regulação para Baixo/efeitos dos fármacos , Transição Epitelial-Mesenquimal/efeitos dos fármacos , Ligação de Hidrogênio , Concentração de Íons de Hidrogênio , Inflamação/tratamento farmacológico , Mucosa Intestinal/efeitos dos fármacos , Isoflavonas/química , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Microesferas
16.
Food Funct ; 10(8): 4533-4545, 2019 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-31264676

RESUMO

Gardenia blue pigments derived from genipin reacting with amino acids have been used as natural food colorants for nearly 30 years in East Asia. However, their pharmacological effects, especially antidepressant-like effects, have not been reported so far. In this study, one of the gardenia blue pigments, was obtained from the reaction of genipin with tyrosine (genipin-tyrosine derivant (GTD)), and its antidepressant-like effects were investigated in lipopolysaccharide (LPS) or chronic unpredictable mild stress (CUMS) models. The results showed that GTD could attenuate depressive-like behaviors in both animal models. GTD reversed the LPS-induced cytokine increase of TNF-α, IL-6, and corticosterone (CORT) in mice plasma and hippocampus. In CUMS rats, GTD treatment significantly reduced hypothalamic-pituitary-adrenal (HPA) axis-related stress hormone levels in plasma including those of CORT, adrenocorticotropic hormone (ACTH), and corticotropin-releasing hormone (CRH). Besides, GTD increased plasma testosterone and hippocampal brain-derived neurotrophic factor (BDNF) levels in CUMS rats. GTD increased serotonin (5-HT), dopamine (DA), and norepinephrine (NE) in rat hippocampus and corpus striatum. Consistently, hippocampal metabolomic analysis demonstrated that GTD restored monoamine neurotransmitter metabolism, mitochondrial oxidative function, and membrane structural integrity. Our data suggested that GTD produced antidepressant-like activity through the restoration of the HPA axis hormone balance and the regulation of neurotransmitter release.


Assuntos
Antidepressivos/administração & dosagem , Depressão/tratamento farmacológico , Gardenia/química , Iridoides/química , Pigmentos Biológicos/administração & dosagem , Extratos Vegetais/administração & dosagem , Tirosina/química , Animais , Antidepressivos/química , Fator Neurotrófico Derivado do Encéfalo/metabolismo , Corticosterona/metabolismo , Depressão/genética , Depressão/metabolismo , Depressão/psicologia , Hipocampo/efeitos dos fármacos , Hipocampo/metabolismo , Humanos , Interleucina-6/genética , Interleucina-6/metabolismo , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Pigmentos Biológicos/química , Sistema Hipófise-Suprarrenal/efeitos dos fármacos , Sistema Hipófise-Suprarrenal/metabolismo , Extratos Vegetais/química , Ratos , Ratos Sprague-Dawley , Serotonina/metabolismo
17.
Cancer Biol Ther ; 20(10): 1319-1327, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31311407

RESUMO

Limited studies are available on the molecular pathogenesis of Epstein-Barr virus (EBV)-associated T or natural killer (NK) cell lymphoproliferative disorders (EBV+T/NK-LPD). In this retrospective study, we aim to elucidate the mutation profile of EBV+T/NK-LPD using capture-based targeted sequencing with a panel consisting of 64 lymphoma-related genes to identify driver genes associated with the development of EBV+T/NK-LPD. Targeted sequencing of 169 EBV+T/NK-LPD cases was performed using a panel of 64 lymphoma-related genes. Of the 169 EBV+T/NK-LPD cases, 123 had extra-nodal NK/T-cell lymphoma (ENKTL), 12 had aggressive NK-cell leukemia (ANKL) and 34 had EBV+ T-cell lymphoma of childhood (EBV+TL). The mutation profile revealed that all three subtypes of EBV+T/NK-LPDs had high mutation rates in STAT3, KMT2D, DDX3X, NOTCH1 and TET2. Target sequencing revealed that ENKTL, ANKL and EBV+TL were molecularly distinct, the mutation in nasal-ENKTL and extra-nasal-ENKTL are also different. Survival analysis revealed that ENKTL patients with gene mutations or loss of protein expression in either KMT2D or TET2 were significantly correlated with shorter overall survival. And although the EBV+TL and ANKL groups were too small to confirm survival disadvantage, the adverse prognosis trends of KMT2D or TET2 were showed in these two groups. We conclude that EBV+T/NK lymphoproliferative disorders have very distinct molecular profiles. Our findings also suggest the likely involvement of KMT2D and TET2 in the development of ENKTL, and possibly EBV+T/NK-LPDs in general.


Assuntos
Proteínas de Ligação a DNA/genética , Infecções por Vírus Epstein-Barr/complicações , Células Matadoras Naturais/metabolismo , Células Matadoras Naturais/patologia , Transtornos Linfoproliferativos/etiologia , Transtornos Linfoproliferativos/mortalidade , Mutação , Proteínas de Neoplasias/genética , Proteínas Proto-Oncogênicas/genética , Biomarcadores , Biologia Computacional/métodos , Diagnóstico Diferencial , Suscetibilidade a Doenças , Infecções por Vírus Epstein-Barr/virologia , Feminino , Sequenciamento de Nucleotídeos em Larga Escala , Humanos , Imuno-Histoquímica , Transtornos Linfoproliferativos/diagnóstico , Transtornos Linfoproliferativos/terapia , Masculino , Anotação de Sequência Molecular
18.
Gastroenterol Res Pract ; 2019: 2943232, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30992701

RESUMO

This study reports the outcomes of endoscopic submucosal single-tunnel dissection or endoscopic submucosal multi-tunnel dissection for the treatment of esophageal neoplastic lesions of at least three-quarters of the esophageal circumference, including circumferential superficial esophageal neoplastic lesions. From July 2014 to February 2018, a total of 124 lesions underwent endoscopic submucosal tunnel dissection at our hospital. One to four submucosal tunnels were created in the oral to anal direction. Of the 124 lesions, there were 83 noncomplete circumferential lesions and 41 circumferential lesions. Endoscopic submucosal single-tunnel dissection was performed in 54 patients, two-tunnel dissection in 43 patients, three-tunnel dissection in 19 patients, and four-tunnel dissection in 8 patients. The mean dissection speed was 22.8 ± 12.7 mm2/min. En bloc dissection was achieved in all lesions, and the R0 resection rate was 70.2 percent. No matter how large the lesion area was, there were no significant differences in the dissection speed and the R0 resection rate when lesions were at least three-quarters of the esophageal circumference. Esophageal stricture was observed in 54 patients and was relieved by placement of a retrievable metal stent or by endoscopic water balloon dilation. No recurrence was noted after 19.1 ± 12.4 months of follow-up. Our large sample size study showed that endoscopic submucosal tunnel dissection showed effectiveness and safety for the treatment of large superficial esophageal neoplastic lesions at least three-quarters of the esophageal circumference, including circumferential superficial esophageal neoplastic lesions.

19.
Am J Dermatopathol ; 41(1): 7-15, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30085959

RESUMO

BACKGROUND: Hydroa vacciniforme-like lymphoproliferative disorder (HVLPD) is a rare Epstein-Barr virus (EBV)-associated lymphoma that mainly affects children. OBJECTIVES: To examine the similarities and differences in the clinical pathological features, EBV infection status, and gene rearrangements in adults and children patients with HVLPD. METHODS: We compared the clinical manifestations, histopathology, immunophenotypical features, EBV infection status, and T-cell receptor gene rearrangements in the adult and children HVLPD groups. RESULTS: Clinical manifestations differed between children and adults groups. The children were characterized by blisters and severe facial swelling, whereas the adults were characterized by mild facial swelling and papules. Mosquito bite was significantly related to morbidity in the children group. Histologically, the number of mast cells in the adult group was greater than in the children group (P < 0.05). There were no significant differences in EBV infection status or TCR-γ gene rearrangements between 2 groups. CONCLUSIONS: There were differences in clinical pathology and prognosis between the 2 groups. A higher mast cell count and T-cell phenotype might be associated with a poor prognosis.


Assuntos
Infecções por Vírus Epstein-Barr/diagnóstico , Dermatoses Faciais/diagnóstico , Rearranjo Gênico da Cadeia gama dos Receptores de Antígenos dos Linfócitos T , Genes Codificadores da Cadeia gama de Receptores de Linfócitos T , Herpesvirus Humano 4/isolamento & purificação , Hidroa Vaciniforme/diagnóstico , Linfoma/diagnóstico , Pele , Adolescente , Adulto , Fatores Etários , Criança , Infecções por Vírus Epstein-Barr/genética , Infecções por Vírus Epstein-Barr/imunologia , Infecções por Vírus Epstein-Barr/virologia , Dermatoses Faciais/genética , Dermatoses Faciais/imunologia , Dermatoses Faciais/virologia , Feminino , Marcadores Genéticos , Predisposição Genética para Doença , Humanos , Hidroa Vaciniforme/genética , Hidroa Vaciniforme/imunologia , Hidroa Vaciniforme/virologia , Imuno-Histoquímica , Imunofenotipagem/métodos , Hibridização in Situ Fluorescente , Linfoma/genética , Linfoma/imunologia , Linfoma/virologia , Masculino , Mastócitos/imunologia , Mastócitos/patologia , Mastócitos/virologia , Pessoa de Meia-Idade , Fenótipo , Reação em Cadeia da Polimerase , Estudos Retrospectivos , Fatores de Risco , Pele/imunologia , Pele/patologia , Pele/virologia , Adulto Jovem
20.
Genomics ; 111(3): 320-326, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-29486210

RESUMO

Developmental dysplasia of the hip (DDH) is a common congenital malformation characterized by mismatch in shape between the femoral head and acetabulum, and leads to hip dysplasia. To date, the pathogenesis of DDH is poorly understood and may involve multiple factors, including genetic predisposition. However, comprehensive genetic analysis has not been applied to investigate a genetic component of DDH. In the present study, 10 pairs of healthy fathers and DDH daughters were enrolled to identify genetic hallmarks of DDH using high throughput whole genome sequencing. The DDH-specific DNA mutations were found in each patient. Overall 1344 genes contained DDH-specific mutations. Functional enrichment analysis showed that these genes played important roles in the cytoskeleton, microtubule cytoskeleton, sarcoplasm and microtubule associated complex. These functions affected osteoblast and osteoclast development. Therefore, we proposed that the DDH-specific mutations might affect bone development, and caused DDH. Our pairwise high throughput sequencing results comprehensively delineated genetic hallmarks of DDH. Further research into the biological impact of these mutations may inform the development of DDH diagnostic tools and allow neonatal gene screening.


Assuntos
Luxação Congênita de Quadril/genética , Mutação , Adulto , Pré-Escolar , Feminino , Luxação Congênita de Quadril/patologia , Humanos , Lactente , Masculino , Osteogênese/genética , Linhagem , Sequenciamento Completo do Genoma
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