Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 488
Filtrar
Más filtros

Intervalo de año de publicación
1.
Plant Dis ; 2024 Mar 28.
Artículo en Inglés | MEDLINE | ID: mdl-38549273

RESUMEN

As a native crop in central Asia, pomegranate (Punica granatum L.) has been cultivated in China for more than 2000 years (Yuan et al. 2007). In August 2022, typical symptoms of anthracnose were observed on pomegranate fruitlets in the main cultivation area (34°22'36″N, 109°15'58″E) in Shaanxi Province, China. The disease incidence was approximately 10 to 15% in the field. The initial symptoms were slightly small, light, dark, sunken lesions with irregular, circular shapes. As the disease progressed, the necrotic lesions gradually expanded and merged, eventually leading to the abscission of fruits (Figure 1, A). The symptomatic lesion samples of the pomegranate were sterilized for 1.5 min in 75% ethanol and 2 min in 1% NaClO and rinsed for 2 min in sterile water three times. The sterilized samples were dried on sterile filter paper and placed on potato dextrose agar (PDA) media at 25 ℃ for 5 days. The mycelia of the isolate were white, cottony, and diffuse (Figure 1, B and C). The conidia were single-celled, smooth, aseptate, and cylindrical with slightly rounded ends, measured 13.5 to 17.5 µm long and 3.5 to 6.5 µm wide (mean 16.0 × 4.5 µm, n = 50) (Figure 1, D). These morphological characteristics were identical to those of Colletotrichum siamense (Weir et al. 2012; Cannon et al. 2012; Zhuo et al. 2022). For accurate molecular characterization of the fungus, genomic DNA was extracted from the hyphae of the two isolates using microorganism lysis buffer (Takara, Japan). The internal transcribed spacer (ITS), calmodulin (CAL), actin (ACT), glyceraldehyde-3-phosphate dehydrogenase (GAPDH), and beta-tubulin (TUB2) regions were amplified and sequenced. All the sequences were submitted to GenBank with accession numbers OQ832556 (ITS), OQ848589 (GAPDH), OQ848590 (ACT), OQ848591 (CAL), and OQ986593 (TUB2). The isolates showed 99 to 100% identity with sequences of Colletotrichum siamense (100% with GAPDH, ACT, CAL, and TUB2; 99.81% with ITS). The morphology of the strain was studied, and multilocus (ITS, GAPDH, ACT, CAL, and TUB2) phylogenetic analysis was performed (Figure 2). Therefore, the causal pathogen was identified as C. siamense based on the results of morphological and molecular analyses. Pathogenicity assays were performed on pomegranate (cv. Lishanhong) fruits. A conidial suspension (1×106 conidia/mL) was sprayed onto 10 unwounded fruits to inoculate them as infected samples, and the controls were inoculated with a sterile water suspension. All the samples were maintained in an artificial climate box at 25 ± 2 ℃ with 70% relative humidity, and the photoperiod was set as 12:12 light:dark. After 5 to 7 days, anthracnose symptoms developed on the surface of the inoculated fruit, whereas the control fruits remained healthy. The diseased fruits exhibited brown necrotic lesions, whereas the upper surfaces of the control fruits remained asymptomatic. The morphological and molecular characteristics of the reisolated pathogen were identical to those of the original fungus isolated from the natural fruit. C. siamense has been reported to cause anthracnose in the southeastern United States (Xavier et al. 2019). The pathogen causing anthracnose on pomegranates has been reported to be Colletotrichum fructicola in China (Hu et al. 2023). To our knowledge, this is the first report of anthracnose on pomegranate fruits caused by C. siamense in China. This disease can directly affect the quality and yield of the fruit. Thus, information about the characteristics of this disease could provide a theoretical basis for its prevention and control.

2.
Zhongguo Zhong Yao Za Zhi ; 49(4): 868-883, 2024 Feb.
Artículo en Zh | MEDLINE | ID: mdl-38621894

RESUMEN

Scorpio is a valuable Chinese animal medicine commonly used in clinical practice in China. It is the main drug in the treatment of liver wind internal movement caused by various reasons throughout the history of traditional Chinese medicine(TCM), with the effects of relieving wind and spasm, dredging collaterals, relieving pain, and eliminating toxin and mass. Scorpio is poisonous and often used as medicine after processing. There are records of its processing as early as the Song Dynasty. Afterward, there were more than 15 processing methods, including frying with vinegar, neat processing, and stir-frying. After processing, the fishy smell could be removed to correct the taste, and the toxicity could be reduced, which was beneficial to clinical application. At present, the main reported components in Scorpio are protein polypeptides, alkaloids, and lipids, with many pharmacological effects, such as anti-cancer, anti-coagulation, anti-thrombosis, anti-atherosclerosis, and anti-bacteria. In this study, the historical evolution of processing, chemical constituents, and pharmacological action of Scorpio were discussed in order to provide references for the related research on Scorpio.


Asunto(s)
Alcaloides , Medicamentos Herbarios Chinos , Animales , Evolución Química , Medicamentos Herbarios Chinos/farmacología , Medicina Tradicional China , Alcaloides/farmacología
3.
Ann Surg ; 277(1): e61-e69, 2023 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-34091512

RESUMEN

OBJECTIVE: To construct a prediction model for more precise evaluation of prognosis which will allow personalized treatment recommendations for adjuvant therapy in patients following resection of ESCC. BACKGROUND: Marked heterogeneity of patient prognosis and limited evidence regarding survival benefit of various adjuvant therapy regimens pose challenges in the clinical treatment of ESCC. METHODS: Based on comprehensive clinical data obtained from 4129 consecutive patients with resected ESCC in a high-risk region in China, we identified predictors for overall survival through a 2-phase selection based on Cox proportional hazard regression and minimization of Akaike information criterion. The model was internally validated using bootstrapping and externally validated in 1815 patients from a non-high-risk region in China. RESULTS: The final model incorporates 9 variables: age, sex, primary site, T stage, N stage, number of lymph nodes harvested, tumor size, adjuvant treatment, and hemoglobin level. A significant interaction was also observed between N stage and adjuvant treatment. N1+ stage patients were likely to benefit from addition of adjuvant therapy as opposed to surgery alone, but adjuvant therapy did not improve overall survival for N0 stage patients. The C -index of the model was 0.729 in the training cohort, 0.723 after bootstrapping, and 0.695 in the external validation cohort. This model outperformed the seventh edition American Joint Committee on Cancer staging system in prognostic prediction and risk stratification. CONCLUSIONS: The prediction model constructed in this study may facilitate precise prediction of survival and inform decision-making about adjuvant therapy according to N stage.


Asunto(s)
Carcinoma de Células Escamosas , Neoplasias Esofágicas , Carcinoma de Células Escamosas de Esófago , Humanos , Carcinoma de Células Escamosas de Esófago/cirugía , Neoplasias Esofágicas/cirugía , Carcinoma de Células Escamosas/cirugía , Esofagectomía , Estadificación de Neoplasias , Pronóstico , Estudios Retrospectivos
4.
Ann Surg ; 277(4): e777-e784, 2023 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-35129490

RESUMEN

OBJECTIVE: To evaluate the long-term and short-term outcomes of MIE compared with OE in localized ESCC patients in real-world settings. BACKGROUND: MIE is an alternative to OE, despite the limited evidence regarding its effect on long-term survival. METHODS: We recruited 5822 consecutive patients with resectable ESCC in 2 typical high-volume centers in southern and northern China, 1453 of whom underwent MIE. Propensity score-based overlap weighted regression adjusted for multifaceted confounding factors was used to compare outcomes in the MIE and OE groups. RESULTS: Five-year OS was 62.7% in the MIE group and 57.7% in the OE group. The overlap weighted Cox regression showed slightly better OS in the MIE group (hazard ratio 0.93, 95% confidence interval: 0.82-1.06). Although duration of surgery was longer and treatment cost higher in the MIE group than in the OE group, the number of lymph nodes harvested was larger, the proportion of intraoperative blood transfusions lower, and postoperative complications less in the MIE group. 30-day (risk ratio [RR] 0.77, 0.381.55) and 90-day (RR 0.79, 0.46-1.35) mortality were lower in the MIE group versus the OE group, although not statistically significant. These findings were consistent across different analytic approaches and subgroups, notably in the subset of ESCC patients with large tumors. CONCLUSIONS: MIE can be performed safely with OS comparable to OE for patients with localized ESCC, indicating MIE may be recommended as the primary surgical approach for resectable ESCC in health facilities with requisite technical capacity.


Asunto(s)
Neoplasias Esofágicas , Carcinoma de Células Escamosas de Esófago , Humanos , Carcinoma de Células Escamosas de Esófago/cirugía , Resultado del Tratamiento , Esofagectomía/efectos adversos , Estudios Retrospectivos , Procedimientos Quirúrgicos Mínimamente Invasivos/efectos adversos , Complicaciones Posoperatorias/etiología
5.
Opt Express ; 31(17): 27304-27311, 2023 Aug 14.
Artículo en Inglés | MEDLINE | ID: mdl-37710809

RESUMEN

In order to enhance the sensitivity, integration, and practical application capability of Raman detection systems, we propose a multi-channel microfluidic integrated D-shaped optical fiber SERS (Surface-enhanced Raman scattering) probe structure. Firstly, a microfluidic polydimethylsiloxane (PDMS) channel was fabricated using a self-designed multi-channel microfluidic template. Secondly, a uniform layer of silver nanoparticles was deposited on the D-shaped optical fiber using the liquid-liquid interface method. Finally, the D-shaped optical fiber was plasma-bonded to the multi-channel microfluidic channel and a cover glass, resulting in a microfluidic integrated D-shaped optical fiber SERS probe. The prepared sample exhibited excellent detection performance for R6G (rhodamine 6 G) with a detection limit as low as 10-11 mol/L and an enhancement factor of 1.14 × 109. Moreover, the multi-channel configuration enables simultaneous detection of multiple molecules, demonstrating excellent multi-channel multiplexing capability.

6.
J Pathol ; 258(1): 38-48, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35612571

RESUMEN

Currently, surveillance for esophageal squamous cell carcinoma (ESCC) runs a risk of underestimation of early lesions which show absence of iodine staining, with no or only mild histologic changes. The development of molecular markers that indicate risk of progression is thus warranted. We performed whole-exome sequencing on biopsies from two sequential endoscopies of a single esophageal lesion and matching blood samples. There were 27 pairs of age-, gender-, pathologic stage-, and sampling interval-matched progressors and non-progressors identified in a prospective community-based ESCC screening trial. Putative molecular progression markers for ESCC were first evaluated by comparing somatic mutation, copy number alteration (CNA), and mutational signature information among progressors and non-progressors. These markers were then validated with another 24 pairs of matched progressors and non-progressors from the same population using gene alteration status identified by target sequencing and quantitative PCR. Progressors had more somatic mutation and CNA burden, as well as apolipoprotein B mRNA editing catalytic polypeptide-like and age-related signature weights compared with non-progressors. A gene score consisting of somatic NOTCH1 mutation and CDKN2A deletion is predictive of risk of progression in lesions which show absence of iodine staining under endoscopy but have no or only mild dysplasia. This gene score was also validated in an external cohort of matched progressors and non-progressors. Absence of NOTCH1 mutation and presence of CDKN2A deletion are markers of progression in squamous lesions of the esophagus. This gene score would be an ideal indicator for assisting the pathologist in the identification of high-risk individuals who could be potentially 'missed' or subject to a risk underestimation by histologic analysis, and might improve the performance of ESCC surveillance. © 2022 The Pathological Society of Great Britain and Ireland.


Asunto(s)
Carcinoma de Células Escamosas , Neoplasias Esofágicas , Carcinoma de Células Escamosas de Esófago , Yodo , Carcinoma de Células Escamosas/patología , Ensayos Clínicos como Asunto , Inhibidor p16 de la Quinasa Dependiente de Ciclina/genética , Neoplasias Esofágicas/genética , Neoplasias Esofágicas/patología , Carcinoma de Células Escamosas de Esófago/genética , Femenino , Humanos , Masculino , Mutación , Estudios Prospectivos , Receptor Notch1/genética
7.
J Gastroenterol Hepatol ; 38(3): 416-423, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36418206

RESUMEN

BACKGROUND AND AIM: The impact of the presence of multiple Lugol-unstained lesions (LULs) in the esophagus on the risk of having severe dysplasia and above (SDA) lesions among asymptomatic individuals is unknown. METHODS: We collected demographic factors, behavioral variables, and features of LULs from 1073 participants who were biopsied at baseline endoscopic screening in a population-based screening trial, and these individuals were followed over a median time of 7 years. Outcome events were defined as SDA identified at screening, at reexamination, or during follow-up. "Multiple LULs" were defined as ≥ 2 LULs found in the entirety of the esophagus. Multivariable logistic regression models were fitted to assess the effect of "multiple LULs" on the cumulative risk of SDA. RESULTS: There were 147 SDA cases in the current study. After adjustment for potential risk factors and endoscopic features of LULs, the presence of "multiple LULs" slightly increased the cumulative risk of having SDA with no statistical significance (adjusted odds ratio [OR] = 1.26; 95% confidence interval [CI] [0.85, 1.88]). Further stratified analysis showed that this association was strong among subjects with small LULs (≤ 5 mm) (adjusted OR = 3.29; 95% CI [1.39, 7.79]). However, no such association was observed in subjects with larger LULs (adjusted OR = 0.99; 95% CI [0.63, 1.55], P interaction  = 0.022). CONCLUSIONS: The presence of "multiple small LULs (≤ 5 mm)" in chromoendoscopy indicates a higher cumulative risk of having SDA in the esophagus. We recommend biopsies be taken and surveillance be maintained at a more active level in individuals with relatively small but multiple LULs.


Asunto(s)
Esófago de Barrett , Neoplasias Esofágicas , Humanos , Neoplasias Esofágicas/patología , Esofagoscopía , Colorantes , Factores de Riesgo
8.
J Gastroenterol Hepatol ; 38(12): 2167-2173, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37726891

RESUMEN

INTRODUCTION: This study aimed to evaluate the impact of Lugol-unstained lesion (LUL) location on the detection yield, which may help the endoscopist select targets for biopsy. METHODS: We enrolled 1064 subjects who had LULs at the baseline screening of a population-based randomized controlled trial. There were 1166 LULs with recorded location and pathologic diagnosis, and these were used for analysis. The detection rate of severe dysplasia and above (SDA) was calculated as the number of LULs identified as SDA divided by the number of LULs biopsied. Logistic regression with a generalized estimating equation was applied to evaluate the association between the location of a given LUL and the risk of the LUL being SDA. RESULTS: The detection rate of SDA for LULs located in the lower, middle, and upper esophagus increased from 5.9% and 10.9% to 16.7%. LUL location was significantly associated with having SDA (adjusted odds ratio (OR)upper vs. lower  = 2.88, 95% confidential interval (CI) = 1.48-5.60; adjusted ORmiddle vs. lower  = 1.63, 95% CI = 0.96-2.76), and the association was stronger in subgroups with a family history of esophageal squamous cell carcinoma (ESCC) (adjusted ORupper vs. lower  = 9.72, 95% CI = 2.57-36.69; adjusted ORmiddle vs. lower  = 3.76, 95% CI = 0.93-15.21). CONCLUSIONS: Our results suggest that more attention should be paid by endoscopists to LULs in the upper and middle esophagus, particularly for individuals with a family history of ESCC.


Asunto(s)
Carcinoma de Células Escamosas , Neoplasias Esofágicas , Carcinoma de Células Escamosas de Esófago , Lesiones Precancerosas , Humanos , Neoplasias Esofágicas/diagnóstico , Neoplasias Esofágicas/epidemiología , Neoplasias Esofágicas/patología , Esofagoscopía/métodos , Carcinoma de Células Escamosas/patología , Lesiones Precancerosas/diagnóstico
9.
BMC Ophthalmol ; 23(1): 172, 2023 Apr 21.
Artículo en Inglés | MEDLINE | ID: mdl-37085809

RESUMEN

BACKGROUND: To compare the clinical outcomes of posterior chamber phakic intraocular lens (pIOL) implantation for non-pathological myopia and pathological myopia. METHODS: This retrospective case series study which were conducted in Beijing Tongren Eye Center between July 2017 and Oct 2021 comprised 192 eyes of 100 consecutive patients undergoing pIOL implantation. Eyes were divided into two groups based on having pathological myopia or not. Predictability, efficacy, safety, and adverse events were compared at 6 months after pIOL implantation. RESULTS: Our study included 86 non-pathological myopes (171 eyes, group1) and 14 pathological myopes (21eyes, group2) to analysis. The average ages were 25.5 and 33.0, respectively, and the spherical equivalent (SE) were -9.31D and -17.50D pre-operation. Six months after pIOL implantation, the SE were 0.00 and -0.50, respectively, and the refraction changes were statistically significant (P ≤ 0.05). Six months after surgery, 76.92% and 80.41% were within ± 0.50 D of the target and 92.31% and 95.88% were within ± 1.00 D. All eyes had unchanged BCVA or gained 1 or more lines in both groups and mean BCVA both improved a line 6m after operation. The efficacy index in the two groups were 0.95 and 0.88 and the safety index were 1.20, 1.33, respectively which was significantly different (P ≤ 0.05). Over the 6-month follow-up, no cataract, pigment dispersion glaucoma, pupillary block, or other vision-threatening complications happened, either. CONCLUSIONS: The pIOL performed well for the correction of both non-pathological and pathological myopia throughout the 6-month observation period. The clinical outcomes of pIOL implantation for non-pathological myopia are essentially equivalent to those for pathological myopia.


Asunto(s)
Miopía Degenerativa , Lentes Intraoculares Fáquicas , Humanos , Agudeza Visual , Estudios Retrospectivos , Estudios de Seguimiento , Refracción Ocular , Miopía Degenerativa/cirugía , Resultado del Tratamiento
10.
Chin J Cancer Res ; 35(6): 584-594, 2023 Dec 30.
Artículo en Inglés | MEDLINE | ID: mdl-38204451

RESUMEN

Cancer stands as a prominent public health concern in China, with elusive intervention targets due to unidentified high-risk causal factors for most cancers. Consequently, emphasis has shifted towards screening, diagnosing, and treating early cancer cases within the general population. However, China faces considerable obstacles in its cancer prevention and control efforts, attributing to the complexity and heterogeneity of the occurrence, progression, and prognosis of malignant tumors across populations, time, and regions. Taking esophageal cancer screening practices as an example, this review outlines the importance and assessment of cancer screening, delineating major challenges in China's cancer prevention and control: 1) limited comprehension of cancer's natural history; 2) lack of "China Evidence" supporting screening effectiveness and value; 3) compromised efficiency and accuracy in current screening modality; and 4) insufficient sustainability of the current screening practices and translation of relevant scientific research achievements. To address these challenges, we propose potential coping strategies: 1) establishing tailored technologies and pathways for cancer prevention and control based on population-based and clinical epidemiological studies using high-quality designs; 2) breaking conventional constraints to establish a novel cancer screening strategy aligned with real-world needs; and 3) establishing enhanced communication platforms among scientific research teams, policymakers, and industrial institutions to foster collaboration and innovation.

11.
Lab Invest ; 102(5): 464-473, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-35013531

RESUMEN

Exosomes, one of three main types of extracellular vesicles, are ~30-100 nm in diameter and have a lipid bilayer membrane. They are widely distributed in almost all body fluids. Exosomes have the potential to regulate unknown cellular and molecular mechanisms in intercellular communication, organ homeostasis, and diseases. They are critical signal carriers that transfer nucleic acids, proteins, lipids, and other substances into recipient cells, participating in cellular signal transduction and material exchange. ncRNAs are non-protein-coding genes that account for over 90% of the genome and include microRNAs (miRNAs), long ncRNAs (lncRNAs), and circular RNAs (circRNAs). ncRNAs are crucial for physiological and pathological activities in the liver by participating in gene transcription, posttranscriptional epigenetic regulation, and cellular processes through interacting with DNA, RNA, or proteins. Recent evidence from both clinical and preclinical studies indicates that exosome-derived noncoding RNAs (ncRNAs) are highly involved in the progression of acute and chronic liver diseases by regulating hepatic lipid metabolism, innate immunity, viral infection, fibrosis, and cancer. Therefore, exosome-derived ncRNAs have promising potential and clinical implications for the early diagnosis, targeted therapy, and prognosis of liver diseases.


Asunto(s)
Exosomas , MicroARNs , ARN Largo no Codificante , Epigénesis Genética , Exosomas/genética , Exosomas/metabolismo , Hígado/metabolismo , MicroARNs/metabolismo , ARN Largo no Codificante/metabolismo , ARN no Traducido/genética , ARN no Traducido/metabolismo
12.
Ann Surg Oncol ; 29(9): 5626-5633, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-35181817

RESUMEN

BACKGROUND: The aim was to systematically select blood markers routinely tested in clinical settings, which are independently associated with overall survival (OS) and are able to stratify prognosis of esophageal squamous cell carcinoma (ESCC) patients undergoing esophagectomy. METHODS: We selected optimal blood markers for prognostic stratification from 60 candidates in a clinical cohort of 1819 consecutive patients with resectable ESCC in China. Selection was carried out using two-step multivariable Cox proportional hazards regression adjusted for multifaceted confounders. A composite index was developed by multiplying risk factors and dividing them by protective factors. RESULTS: With a median follow-up of 48.07 months, 641 deaths occurred in the 1819 patients and the 5-year OS was 56.30%. Two risk factors (mean corpuscular hemoglobin, fibrinogen) and a protective factor (albumin), all dichotomized and assigned values 1 and 2, were used to construct the composite index marker "MF-A". Three risk groups were created based on the MF-A score including low- (0.5), moderate- (1), and high-risk groups (2 and 4). Compared with patients in the low-risk group (1184/1778, 66.59%), those in the moderate- (488, 27.45%), and high-risk (106, 5.96%) groups were at elevated risk of death (adjusted HR: 1.32, 95% CI: 1.11-1.57; adjusted HR: 2.08, 95% CI: 1.56-2.75; Ptrend < 10-7). Within each TNM stage grouping, OS also trended to be significantly worse as the MF-A score increased. CONCLUSIONS: "MF-A" is a novel independent predictor which may be used to estimate and stratify prognosis for ESCC patients undergoing esophagectomy.


Asunto(s)
Neoplasias Esofágicas , Carcinoma de Células Escamosas de Esófago , Albúminas , Índices de Eritrocitos , Neoplasias Esofágicas/patología , Carcinoma de Células Escamosas de Esófago/patología , Esofagectomía , Fibrinógeno , Humanos , Pronóstico , Estudios Retrospectivos
13.
World J Surg Oncol ; 20(1): 67, 2022 Mar 03.
Artículo en Inglés | MEDLINE | ID: mdl-35241097

RESUMEN

BACKGROUND: Hint1 is a novel tumor suppressor gene, and inactivation of its expression is closely associated with the carcinogenesis of a variety of malignancies. The effects of Hint1 deficiency on the competing endogenous RNA (ceRNA) regulatory network in the context of HCC remains to be fully characterized. This study aims to explore Hint1-related hub lncRNAs in HCC and to establish a reliable prognostic model for HCC patients based on these hub lncRNAs. METHODS: lncRNA + mRNA microarray was used to identify differentially expressed (DE) lncRNAs and mRNAs in Huh7 cells before and after Hint1 knockdown. A Hint1-related ceRNA network was mapped by bioinformation technology. The DEmRNAs in the network were analyzed via GO and KEGG enrichment analyses. Hub DElncRNAs associated with HCC patient prognosis were then detected through univariate and multivariate Cox regression analyses and were incorporated into a prognostic model. The prognostic value of this model was then assessed through the use of Kaplan-Meier curves, time-related ROC analyses, and nomograms. We also utilized Kaplan-Meier curves to validate the relationship between hub lncRNAs and the overall survival (OS) of HCC patients. Finally, A Hint1-related core ceRNA network based on the hub DElncRNAs and DEmRNAs was mapped. RESULTS: We identified 417 differentially expressed DElncRNAs and 2096 DEmRNAs in Huh7 cells before and after Hint1 knockdown. Three hub DElncRNAs (LINC00324, SNHG3, and DIO3OS) in the Hint1-associated ceRNA network were screened out using univariate and multivariate Cox regression analyses. A hepatocellular carcinoma (HCC) prognostic risk-scoring model and nomogram were constructed using these three hub lncRNAs, and it was confirmed that the risk score of the model could be used as an independent predictor of HCC prognosis. A Hint1-related core ceRNA network based on the hub DElncRNAs and DEmRNAs was also mapped. CONCLUSION: We constructed a reliable prognostic model for HCC patients based on three Hint1-related hub lncRNAs, and we believe these three hub lncRNAs may play critical roles in hepatocarcinogenesis, and progression.


Asunto(s)
Carcinoma Hepatocelular , Neoplasias Hepáticas , MicroARNs , ARN Largo no Codificante , Biomarcadores de Tumor/genética , Carcinoma Hepatocelular/patología , Regulación Neoplásica de la Expresión Génica , Redes Reguladoras de Genes , Humanos , Neoplasias Hepáticas/patología , MicroARNs/genética , Proteínas del Tejido Nervioso/genética , Pronóstico , ARN Largo no Codificante/genética , ARN Largo no Codificante/metabolismo
14.
J Mater Sci Mater Med ; 33(10): 65, 2022 Sep 23.
Artículo en Inglés | MEDLINE | ID: mdl-36138240

RESUMEN

Chitosan coatings have shown good bioactive properties such as antibacterial and antiplatelet properties, especially on blood-contacted biomedical materials. However, as blood-contacted biomedical device, the intravascular metal stent has a burden with adverse effects on the structural integrity, such as mechanical load during implantation and substrate degradation if a biodegradable metal is used as the substrate. It is unquestionably true that the structural integrity of the coated stent is essential. The adhesion strength between the coating and the substrate positively affects it. Silane and polydopamine (PDA) interstitial layers have been investigated to improve the corrosion resistance, biosafety and adhesion strength. This work addressed this challenge by using PDA as an intermediate and glutaraldehyde as a linking agent to establish a strong link between the polymer coating and the intermediate coating. Compared with PDA-only and glutaraldehyde-linked silane layer, the novel coating displayed a notable increase in adhesion. When compared with the bare Ni-free stainless steel, the performance of the novel coating was not significantly different. This novel chitosan film on the glutaraldehyde linked-PDA interface can be applied to various metallic substrates where synergic bioactive and anticorrosive effects of PDA interstitial coating and chitosan are needed. Graphical abstract.


Asunto(s)
Quitosano , Antibacterianos/química , Quitosano/química , Materiales Biocompatibles Revestidos/química , Glutaral , Indoles , Polímeros/química , Silanos , Acero Inoxidable/química
15.
Lancet ; 395(10239): 1802-1812, 2020 06 06.
Artículo en Inglés | MEDLINE | ID: mdl-32505251

RESUMEN

China has substantially increased financial investment and introduced favourable policies for strengthening its primary health care system with core responsibilities in preventing and managing chronic diseases such as hypertension and emerging infectious diseases such as coronavirus disease 2019 (COVID-19). However, widespread gaps in the quality of primary health care still exist. In this Review, we aim to identify the causes for this poor quality, and provide policy recommendations. System challenges include: the suboptimal education and training of primary health-care practitioners, a fee-for-service payment system that incentivises testing and treatments over prevention, fragmentation of clinical care and public health service, and insufficient continuity of care throughout the entire health-care system. The following recommendations merit consideration: (1) enhancement of the quality of training for primary health-care physicians, (2) establishment of performance accountability to incentivise high-quality and high-value care; (3) integration of clinical care with the basic public health services, and (4) strengthening of the coordination between primary health-care institutions and hospitals. Additionally, China should consider modernising its primary health-care system through the establishment of a learning health system built on digital data and innovative technologies.


Asunto(s)
Atención Primaria de Salud/normas , Calidad de la Atención de Salud , COVID-19 , China , Continuidad de la Atención al Paciente , Infecciones por Coronavirus , Planes de Aranceles por Servicios , Humanos , Pandemias , Médicos de Atención Primaria/educación , Médicos de Atención Primaria/normas , Neumonía Viral , Atención Primaria de Salud/organización & administración
16.
Gastrointest Endosc ; 93(5): 1065-1073.e3, 2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-32950597

RESUMEN

BACKGROUND AND AIMS: At present, the surveillance strategy for premalignant esophageal lesions in China is based solely on the pathologic diagnosis in Lugol's chromoendoscopy (LCE). In this study, we sought to determine the degree to which various unstained features under LCE may lead to improved ability to predict the risk of progression in esophageal lesions. METHODS: We re-examined and followed up on 1058 subjects who had Lugol-unstained lesions (LULs) together with a pathologic diagnosis that was lower than severe dysplasia at baseline screening based on a population-based randomized controlled trial over a median time of 5.8 years. We established a logistic regression model and calculated the adjusted cumulative incidence of severe dysplasia or malignancy. RESULTS: LUL size was predictive of progression to malignant lesions in individuals with a nondysplastic diagnosis (adjusted odd ratio6-10 mm vs ≤5 mm, 6.7; 95% confidence interval, 1.7-25.7; adjusted odds ratio>10 mm vs ≤5 mm, 27.9; 95% confidence interval, 7.3-105.7), and the corresponding adjusted cumulative incidence of malignant lesions was 3.6 and 13.2 per 100 persons. This is higher than that of small (≤5 mm) lesions, which showed mild dysplasia (2.7 per 100 persons), a condition for which surveillance every 3 years is recommended. Under the current approach, 65.3% of interval cancers missed at surveillance would be detected if individuals with medium (6-10 mm) and large (>10 mm) nondysplastic LULs were additionally monitored. CONCLUSIONS: We propose a modified surveillance strategy that combines findings under LCE examination and the pathologic analysis, where follow-up endoscopy is recommended for individuals with relatively large nondysplastic lesions.


Asunto(s)
Neoplasias Esofágicas , Lesiones Precancerosas , China/epidemiología , Colorantes , Neoplasias Esofágicas/epidemiología , Esofagoscopía , Humanos , Yoduros , Lesiones Precancerosas/epidemiología
17.
Neurol Sci ; 42(5): 1653-1659, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-33523320

RESUMEN

OBJECTIVE: To explore the activity changes in neurology clinical practice that have occurred in tertiary public hospitals during the COVID-19 pandemic. METHODS: Outpatient and inpatient data from the neurology department were extracted from the electronic medical record system of three tertiary Grade A hospitals in Wenzhou. Data were analyzed across 5 months following the beginning of the pandemic (from January 13 to May 17) and compared with the same period in 2019. Data on reperfusion therapy for acute infarction stroke were extracted monthly from January to April. RESULTS: The number of outpatients declined from 102,300 in 2019 to 75,154 in 2020 (26.54%), while the number of inpatients in the three tertiary Grade A hospitals decreased from 4641 to 3437 (25.94%). The latter trend showed a significant drop from the 3rd week to the 7th week. The number of patients in these hospitals decreased significantly, and a significant drop was seen in the neurology department. As usual, stroke was the most common disease observed; however, anxiety/depression and insomnia increased dramatically in the outpatient consultation department. CONCLUSIONS: The results of our study revealed the effects of the COVID-19 pandemic in the clinical practice of neurology in Wenzhou during the outbreak. Understanding the pandemic's trends and impact on neurological patients and health systems will allow for better preparation of neurologists in the future.


Asunto(s)
COVID-19 , Neurología , Humanos , Neurólogos , Pandemias , SARS-CoV-2
18.
Med Educ ; 55(12): 1419-1427, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34061389

RESUMEN

CONTEXT: Funding is an essential requirement for ensuring the quality of health professional education worldwide. Adequate funding is of immense significance in training health professionals. Due to the difficulty of accessing relevant data, quantitative research of the kind is scarce. OBJECTIVES: This study aims at analysing the trends of funding levels and funding sources for health professional institutions in China spanning the past 20 years and making a global comparison. METHODS: We used data from Ministry of Education (MOE) of the People's Republic of China to analyse its funding level and structure of funding sources of health professional education in China during 1998-2017. When analysing funding level, we used two indicators: total funding and funding per student. We chose the United States, and analysed its funding level and structure to allow easy comparison to the situation in China. The data from a Lancet report (Lancet, 376, 2010, 1923) were also used to analyse global funding status to make an international comparison. RESULTS: Funding levels of health professional institutions in China has increased significantly in the past 20 years, while the average annual growth rate of funding per student (4.5%) is lower than that of total funding (19.9%). In terms of the structure of funding sources, fiscal appropriation accounts for 51.1% on average, and tuition, fees and scientific research income explains 37.0%. CONCLUSION: From 1998 to 2017, the total funding and funding per student of HPE in China increased continuously, and the total funding increased at a faster rate. The increase in funding of HPE in China is closely related to the efforts of the Chinese government and the implementation of relevant policies. Even so, funding of HPE in China is likely to remain relatively low compared to other countries.


Asunto(s)
Educación Profesional , China , Salud Global , Humanos
19.
BMC Public Health ; 21(1): 2129, 2021 11 20.
Artículo en Inglés | MEDLINE | ID: mdl-34801023

RESUMEN

BACKGROUND: The association of early-life undernutrition and dyslipidemia found in previous studies may be confounded by the uncontrolled age difference between exposed and unexposed participants. The study aimed to investigate the association of early-life undernutrition and the risk of dyslipidemia in adulthood with good control of the age variable. METHODS: We took the Great Chinese Famine (1959-1961) as a natural experiment of severe undernutrition. This study was based on the baseline investigation of a population-based cohort in rural China. Undernutrition in early life was defined as being exposed to famine at younger than 3 years of age. Three approaches including Adjustment, Restriction, and Matching were applied to control the confounding effect of age. Logistic regression models were applied to evaluate the association between early-life famine and the presence of dyslipidemia. Stratified analysis by gender was also performed, and potential effect modification was tested by adding the interaction term of the famine exposure variable and gender into the model. RESULTS: Undernutrition in early life was associated with increased risk of borderline high and above (BHA) levels of total cholesterol (TC, ORAdjustment = 1.61; ORRestriction = 1.56; ORMatching = 1.87), triglycerides (TG, ORAdjustment = 1.33; ORRestriction = 1.30; ORMatching = 1.34), low-density lipoprotein cholesterol (LDL-C, ORAdjustment = 1.75; ORRestriction = 1.53; ORMatching = 1.77) and dyslipidemia (ORAdjustment = 1.52; ORRestriction = 1.45; ORMatching = 1.60), as well as high levels of TC, TG, LDL-C and dyslipidemia. An inverse association of undernutrition and risk of low high-density lipoprotein cholesterol (HDL-C) was found. Female participants with undernutrition experience had an increased risk of BHA TG and LDL-C (TG: ORAdjustment, female = 1.45; ORRestriction, female = 1.39; ORMatching, female = 1.51; LDL-C: ORAdjustment, female = 2.11; ORRestriction, female = 1.80; ORMatching, female = 2.15), but this association was not found in males. CONCLUSION: Early-life undernutrition increased the risk of TC, TG, LDL-C, and dyslipidemia. Gender would significantly modify this effect for TG and LDL-C. These results emphasize the importance of nutritional conditions in the early stages of life to long-term health consequences.


Asunto(s)
Dislipidemias , Desnutrición , Adulto , Preescolar , China , LDL-Colesterol , Estudios de Cohortes , Dislipidemias/epidemiología , Hambruna , Femenino , Humanos , Masculino , Desnutrición/complicaciones , Desnutrición/epidemiología , Prevalencia , Factores de Riesgo , Factores Sexuales
20.
J Environ Sci Health B ; 56(1): 1-9, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33030406

RESUMEN

Trichlorfon is widely used to control pest insects and various parasitic infestations in agriculture, aquaculture and human medicine. However, the long-term widespread use and overuse of trichlorfon poses risks to public and environmental health. Thus, the aim of this study was to evaluate the interference of trichlorfon on gene transcription patterns in the brain of Rana chensinensis with 4 weeks treatment under control conditions and 0.1 mg/L exposure. In total, 102,013 unigenes were obtained from the brain tissue of R. chensinensis, and 874 differentially expressed genes (DEGs) were identified. Functional annotation indicated that out of 118,643 unigenes, 45,600 (44.7%) were annotated in the Nr, Nt, the Swiss-Prot, KEGG, COG, and GO databases. The differential expression patterns of 4 genes associated with neural activity were selected and validated by quantitative polymerase chain reaction (qPCR). The results revealed that except for the canonical cholinesterase-based mechanism, trichlorfon could act on other receptors and alter certain types of neuronal ion channels as the major target sites. All of these effects ultimately cause disorders of multifunctional pathways and other neurotransmitter pathways in the host. The results further our understanding of the mechanisms underlying nontarget effects of organophosphate insecticides (OPs) through multitargets studies.


Asunto(s)
Encéfalo/efectos de los fármacos , Contaminantes Ambientales/toxicidad , Insecticidas/toxicidad , Transcriptoma/efectos de los fármacos , Triclorfón/toxicidad , Animales , Encéfalo/metabolismo , Encéfalo/patología , Expresión Génica/efectos de los fármacos , Humanos , Ranidae , Pruebas de Toxicidad Crónica
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA