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1.
Virol J ; 21(1): 62, 2024 03 07.
Artigo em Inglês | MEDLINE | ID: mdl-38454522

RESUMO

BACKGROUND: In China, respiratory syncytial virus (RSV) infections traditionally occur during the spring and winter seasons. However, a shift in the seasonal trend was noted in 2020-2022, during the coronavirus disease 2019 (COVID-19) pandemic. METHODS: This study investigated the seasonal characteristics of RSV infection in children hospitalized with acute lower respiratory tract infections (ALRTIs). The RSV epidemic season was defined as RSV positivity in > 10% of the hospitalized ALRTI cases each week. Nine RSV seasons were identified between 2013 and 2022, and nonlinear ordinary least squares regression models were used to assess the differences in year-to-year epidemic seasonality trends. RESULTS: We enrolled 49,658 hospitalized children diagnosed with ALRTIs over a 9-year period, and the RSV antigen-positive rate was 15.2% (n = 7,566/49,658). Between 2013 and 2022, the average onset and end of the RSV season occurred in week 44 (late October) and week 17 of the following year, respectively, with a typical duration of 27 weeks. However, at the onset of the COVID-19 pandemic, the usual spring RSV peak did not occur. Instead, the 2020 epidemic started in week 32, and RSV seasonality persisted into 2021, lasting for an unprecedented 87 weeks before concluding in March 2022. CONCLUSIONS: RSV seasonality was disrupted during the COVID-19 pandemic, and the season exhibited an unusually prolonged duration. These findings may provide valuable insights for clinical practice and public health considerations.


Assuntos
COVID-19 , Infecções por Vírus Respiratório Sincicial , Vírus Sincicial Respiratório Humano , Infecções Respiratórias , Criança , Humanos , Lactente , Pandemias , Estações do Ano , China/epidemiologia , COVID-19/epidemiologia
2.
Exp Brain Res ; 242(6): 1507-1515, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38719948

RESUMO

Alzheimer's disease is a progressive neurodegenerative disorder characterized by impairments in synaptic plasticity and cognitive performance. Current treatments are unable to achieve satisfactory therapeutic effects or reverse the progression of the disease. Calcineurin has been implicated as part of a critical signaling pathway for learning and memory, and neuronal calcineurin may be hyperactivated in AD. To investigate the effects and underlying mechanisms of FK506, a calcineurin inhibitor, on Alzheimer-like behavior and synaptic dysfunction in the 3 × Tg-AD transgenic mouse model of Alzheimer's disease, we investigated the effect of FK506 on cognitive function and synaptic plasticity in the 3 × Tg-AD transgenic mouse model of Alzheimer's disease. The results showed that FK506 treatment ameliorated cognitive deficits, as indicated by the decreased latency in the water maze, and attenuated tau hyperphosphorylation in 3 × Tg-AD mice. Treatment with FK506 also reduced the levels of certain markers of postsynaptic deficits, including PSD-95 and NR2B, and reversed the long-term potentiation deficiency and dendritic spine impairments in 3 × Tg-AD mice. These findings suggest that treatment with calcineurin inhibitors such as FK506 can be an effective therapeutic strategy to rescue synaptic deficit and cognitive impairment in familial Alzheimer's disease and related tauopathies.


Assuntos
Doença de Alzheimer , Inibidores de Calcineurina , Modelos Animais de Doenças , Camundongos Transgênicos , Tacrolimo , Animais , Doença de Alzheimer/tratamento farmacológico , Doença de Alzheimer/metabolismo , Doença de Alzheimer/fisiopatologia , Tacrolimo/farmacologia , Inibidores de Calcineurina/farmacologia , Camundongos , Aprendizagem em Labirinto/efeitos dos fármacos , Aprendizagem em Labirinto/fisiologia , Calcineurina/metabolismo , Plasticidade Neuronal/efeitos dos fármacos , Plasticidade Neuronal/fisiologia , Proteínas tau/metabolismo , Receptores de N-Metil-D-Aspartato/metabolismo , Receptores de N-Metil-D-Aspartato/antagonistas & inibidores , Masculino , Sinapses/efeitos dos fármacos , Sinapses/metabolismo , Proteína 4 Homóloga a Disks-Large/metabolismo
3.
Lett Appl Microbiol ; 2024 Jun 28.
Artigo em Inglês | MEDLINE | ID: mdl-38942473

RESUMO

Neocosmospora solani causes Fusarium wilt disease and root rot, which are serious problems worldwide. To determine the growth inhibition of Neocosmospora solani by Trichoderma hamatum volatile organic compounds (VOCs), the major chemical components of Trichoderma hamatum VOCs and the differences in their contents at different times were analysed, and the activity of these components was evaluated. The antifungal activity of Trichoderma hamatum was measured by a screening test, as Trichoderma hamatum exhibited strong antagonism against Neocosmospora solani in vitro. The double plate technique was used to verify the activity of Trichoderma hamatum VOCs, and the inhibition rate was 63.77%. Neocosmospora solani mycelia were uneven and expanded, the contents of the cells leaked, and the mycelia shrank and presented a diaphragm in the hyphae upon Trichoderma hamatum VOCs treatment. Trichoderma hamatum VOCs and their contents at different times were analysed by using GC-MS. 6-Pentyl-2H-pyran-2-one clearly presented in greater amounts than the other components on Day 3, 4, 5, and 6. VOCs from Trichoderma hamatum exhibited evident effects on the percentage of healthy fruit after Day 3. Moreover, Trichoderma hamatum can improve the biological control of diseases caused by soilborne pathogens, and can be applied in biocontrol fields.

4.
Lasers Med Sci ; 39(1): 89, 2024 Mar 08.
Artigo em Inglês | MEDLINE | ID: mdl-38453744

RESUMO

Various treatment modalities have been applied to atrophic scars. Fractional CO2 laser treatment has attracted increasingly more attention because of its quicker recovery time and fewer side effects. However, its limitation of sculpting the edge is an urgent shortcoming. In order to achieve a more effective result with fewer complications, we have integrated ultrapulse CO2 and fractional CO2 lasers to for the treatment of facial atrophic scars. The study included 25 patients (10 males and 15 females) diagnosed with moderate to severe atrophic scars between August 2020 and July 2022. All subjects underwent the same surgical treatment. The effects were assessed at baseline, 1 week, 1 month, and 3 months using photographic evidence. Objective evaluation of the results was conducted using a quartile grading scale, while the subjects' satisfaction and any adverse events were also recorded. The patients in the study underwent more than two laser sessions (2-5), resulting in substantial improvement in their appearance. The time interval between each session was 3-6 months. The majority of the patients (19/25, 76%) had a significant or even excellent improvement. Any adverse events observed, such as erythema, superficial crusting, and PIH, were of a mild nature and temporary in duration. This treatment combined two CO2 lasers is an effective and safe choice for atrophic scars in Asians.


Assuntos
Acne Vulgar , Lasers de Gás , Masculino , Feminino , Humanos , Cicatriz/patologia , Dióxido de Carbono , Resultado do Tratamento , Acne Vulgar/complicações , Eritema/etiologia , Lasers de Gás/uso terapêutico , Atrofia/complicações
5.
J Cell Sci ; 134(8)2021 04 15.
Artigo em Inglês | MEDLINE | ID: mdl-33737317

RESUMO

Rab5 and Rab7a are the main determinants of early and late endosomes and are important regulators of endosomal progression. The transport from early endosomes to late endosome seems to be regulated through an endosomal maturation switch, where Rab5 is gradually exchanged by Rab7a on the same endosome. Here, we provide new insight into the mechanism of endosomal maturation, for which we have discovered a stepwise Rab5 detachment, sequentially regulated by Rab7a. The initial detachment of Rab5 is Rab7a independent and demonstrates a diffusion-like first-phase exchange between the cytosol and the endosomal membrane, and a second phase, in which Rab5 converges into specific domains that detach as a Rab5 indigenous endosome. Consequently, we show that early endosomal maturation regulated through the Rab5-to-Rab7a switch induces the formation of new fully functional Rab5-positive early endosomes. Progression through stepwise early endosomal maturation regulates the direction of transport and, concomitantly, the homeostasis of early endosomes.


Assuntos
Endossomos , Proteínas rab5 de Ligação ao GTP , Endossomos/metabolismo , Vesículas Transportadoras/metabolismo , Proteínas rab5 de Ligação ao GTP/genética , Proteínas rab5 de Ligação ao GTP/metabolismo
6.
Biol Pharm Bull ; 46(8): 1041-1048, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37532555

RESUMO

Thyroid cancer (TC) is the most common malignant tumor of endocrine system and head and neck. Ononin is an isoflavone component, which exhibited great antioxidant and anti-inflammatory activities. This study was conducted to explore the functions of ononin in the TC progression. The cell counting kit-8 (CCK8) assay was applied for the cell viability determination. The cell death and apoptosis rate were analyzed by terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick-end labeling (TUNEL) staining and flow cytometry. The quantitative real-time PCR (qRT-PCR) and Western blot assays were performed for the relative expressions determination. Lactate dehydrogenase (LDH) release assay was used to assess cytotoxicity. Ononin treatment prominently inhibited the cell viability and induced the cell apoptosis of the TC cells. Besides, caspase 3 (CASP3) was down-regulated and CD274 was up-regulated in TC. Ononin treatment prominently decreased the CD274 levels and increased the CASP3 levels in the TC cells. Additionally, ononin treatment dramatically enhanced the LDH release of the cytotoxicity of T cells. What is more, CASP3 overexpression or CD274 knockdown promoted the role of ononin in TC cells. Ononin treatment induced the cell death of the TC cells through regulating the CASP3 and CD274 expressions.


Assuntos
Isoflavonas , Neoplasias da Glândula Tireoide , Humanos , Caspase 3/metabolismo , Neoplasias da Glândula Tireoide/tratamento farmacológico , Neoplasias da Glândula Tireoide/patologia , Apoptose , Proliferação de Células , Linhagem Celular Tumoral , Antígeno B7-H1
7.
BMC Pulm Med ; 23(1): 503, 2023 Dec 12.
Artigo em Inglês | MEDLINE | ID: mdl-38087209

RESUMO

OBJECTIVE: The purpose of this study was to examine the feasibility of using a combination of diaphragmatic ultrasound and muscle relaxation monitoring in predicting adverse respiratory events after extubation among elderly patients in an anesthetic intensive care unit (AICU). METHODS: The study participants were 120 elderly patients who were in the AICU after laparoscopic radical resection for colorectal cancer. Based on whether there were critical respiratory events (CREs) after extubation, they were divided into the adverse event group and the non-adverse event group. We used logistic regression to identify factors influencing the occurrence of CREs post-extubation in elderly patients. Using the receiver operating characteristic (ROC) curve, we analyzed the value of each indicator in predicting CREs post-extubation. RESULTS: We included 109 patients in the final analysis. In the adverse event group (n = 19), the age, proportion of females, and proportion of preoperative respiratory diseases were higher than in the non-adverse event group (n = 90). The muscle relaxation value, quiet breathing diaphragmatic excursion during extubation (DE-QB), deep breathing diaphragmatic excursion during extubation (DE-DB), and deep breathing diaphragmatic thickening fraction during extubation (DTF-DB) of patients in the adverse event group were significantly lower than those in the non-adverse event group (P < 0.05). Using binary logistic regression analysis, we identified muscle relaxation value, DE-DB, and DTF-DB during extubation as significant predictors of CREs post-extubation in elderly patients (P < 0.05). The area under the curve (AUC) of the combination of the muscle relaxation value, DE-DB, and DTF-DB during extubation for predicting CREs after extubation in elderly patients was 0.949, which was higher than that of any single indicator. CONCLUSION: The combination of diaphragmatic ultrasound and muscle relaxation monitoring was more accurate in predicting CREs post-extubation among elderly patients in the AICU.


Assuntos
Anestesia , Desmame do Respirador , Feminino , Humanos , Idoso , Extubação/efeitos adversos , Estudos Prospectivos , Valor Preditivo dos Testes , Ultrassonografia , Diafragma/diagnóstico por imagem , Unidades de Terapia Intensiva , Respiração Artificial
8.
Econ Bot ; 77(1): 63-81, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36811019

RESUMO

The greatest global challenge is to ensure that all people have access to adequate and nutritious food. Wild edible plants, particularly those that provide substitutes for staple foods, can play a key role in enhancing food security and maintaining a balanced diet in rural communities. We used ethnobotanical methods to investigate traditional knowledge on Caryota obtusa, a substitute staple food plant of the Dulong people in Northwest Yunnan, China. The chemical composition, morphological properties, functional, and pasting properties of C. obtusa starch were evaluated. We used MaxEnt modeling to predict the potential geographical distribution of C. obtusa in Asia. Results revealed that C. obtusa is a vital starch species with cultural significance in the Dulong community. There are large areas suitable for C. obtusa in southern China, northern Myanmar, southwestern India, eastern Vietnam, and other places. As a potential starch crop, C. obtusa could substantially contribute to local food security and bring economic benefit. In the future, it is necessary to study the breeding and cultivation of C. obtusa, as well as the processing and development of starch, to solve long-term and hidden hunger in rural areas.

9.
J Cell Sci ; 133(10)2020 05 27.
Artigo em Inglês | MEDLINE | ID: mdl-32265275

RESUMO

Despite progress made in confocal microscopy, even fast systems still have insufficient temporal resolution for detailed live-cell volume imaging, such as tracking rapid movement of membrane vesicles in three-dimensional space. Depending on the shortfall, this may result in undersampling and/or motion artifacts that ultimately limit the quality of the imaging data. By sacrificing detailed information in the Z-direction, we propose a new imaging modality that involves capturing fast 'projections' from the field of depth and shortens imaging time by approximately an order of magnitude as compared to standard volumetric confocal imaging. With faster imaging, radiation exposure to the sample is reduced, resulting in less fluorophore photobleaching and potential photodamage. The implementation minimally requires two synchronized control signals that drive a piezo stage and trigger the camera exposure. The device generating the signals has been tested on spinning disk confocal and instant structured-illumination-microscopy (iSIM) microscopes. Our calibration images show that the approach provides highly repeatable and stable imaging conditions that enable photometric measurements of the acquired data, in both standard live imaging and super-resolution modes.This article has an associated First Person interview with the first author of the paper.


Assuntos
Corantes Fluorescentes , Iluminação , Microscopia Confocal , Fotodegradação
10.
Small ; 18(24): e2201840, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35561072

RESUMO

Germanium (Ge)-based devices are recognized as one of the most promising next-generation technologies for extending Moore's law. However, one of the critical issues is Fermi-level pinning (FLP) at the metal/n-Ge interface, and the resulting large contact resistance seriously degrades their performance. The insertion of a thin layer is one main technique for FLP modulation; however, the contact resistance is still limited by the remaining barrier height and the resistance induced by the insertion layer. In addition, the proposed depinning mechanisms are also controversial. Here, the authors report a wafer-scale carbon nanotube (CNT) insertion method to alleviate FLP. The inserted conductive film reduces the effective Schottky barrier height without inducing a large resistance, leading to ohmic contact and the smallest contact resistance between a metal and a lightly doped n-Ge. These devices also indicate that the metal-induced gap states mechanism is responsible for the pinning. Based on the proposed technology, a wafer-scale planar diode array is fabricated at room temperature without using the traditional ion-implantation and annealing technology, achieving an on-to-off current ratio of 4.59 × 104 . This work provides a new way of FLP modulation that helps to improve device performance with new materials.

11.
Mol Psychiatry ; 26(11): 6952-6962, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-33963282

RESUMO

It is of great clinical importance to explore more efficacious treatments for OCD. Recently, cognitive-coping therapy (CCT), mainly focusing on recognizing and coping with a fear of negative events, has been reported as an efficacious psychotherapy. However, the underlying neurophysiological mechanism remains unknown. This study of 79 OCD patients collected Yale-Brown Obsessive Compulsive Scale (Y-BOCS) and resting-state functional magnetic resonance imaging (rs-fMRI) scans before and after four weeks of CCT, pharmacotherapy plus CCT (pCCT), or pharmacotherapy. Amygdala seed-based functional connectivity (FC) analysis was performed. Compared post- to pretreatment, pCCT-treated patients showed decreased left amygdala (LA) FC with the right anterior cingulate gyrus (cluster 1) and with the left paracentral lobule/the parietal lobe (cluster 2), while CCT-treated patients showed decreased LA-FC with the left middle occipital gyrus/the left superior parietal/left inferior parietal (cluster 3). The z-values of LA-FC with the three clusters were significantly lower after pCCT or CCT than pretreatment in comparisons of covert vs. overt and of non-remission vs. remission patients, except the z-value of cluster 2 in covert OCD. CCT and pCCT significantly reduced the Y-BOCS score. The reduction in the Y-BOCS score was positively correlated with the z-value of cluster 1. Our findings demonstrate that both pCCT and CCT with large effect sizes lowered LA-FC, indicating that FCs were involved in OCD. Additionally, decreased LA-FC with the anterior cingulate cortex (ACC) or paracentral/parietal cortex may be a marker for pCCT response or a marker for distinguishing OCD subtypes. Decreased LA-FC with the parietal region may be a common pathway of pCCT and CCT. Trial registration: ChiCTR-IPC-15005969.


Assuntos
Terapia Cognitivo-Comportamental , Transtorno Obsessivo-Compulsivo , Adaptação Psicológica , Tonsila do Cerebelo/metabolismo , Cognição , Terapia Cognitivo-Comportamental/métodos , Humanos , Imageamento por Ressonância Magnética/métodos , Transtorno Obsessivo-Compulsivo/terapia
12.
Ann Vasc Surg ; 87: 529-537, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36064130

RESUMO

BACKGROUND: Diabetic foot (DF) is a prevalent metabolic infection. DF wounds are the basis for all cases of nontraumatic lower limb amputations in diabetes. DF care approaches include debridement of wound, pressure relief in the wounded area, proper wound, infection, and ischemia management. However, there is a need for research to develop more effective therapeutic approaches. This study investigated the effectivity and safety of autologous platelet-rich gel combined with conventional treatment and traditional Chinese medicine (TCM) in DF ulcer therapy. METHODS: Sixty DF ulcer patients were divided into treatment and control groups of 30 patients each. The treatment group involved a combination of autologous platelet-rich gel, conventional treatment, and TCM. The control group was only treated with a combination of conventional therapy and TCM. Laboratory variables, including platelets, hemoglobin (Hb), albumin, and HbA1c, were analyzed and compared between the treatment and the control groups at baseline and endpoint. Healing area, volume, and rates were compared in both groups. RESULTS: Basic patients' data and the wound conditions had no significant difference between the treatment and the control group. The treatment and control groups cure rates were 93.3% vs. 50%, respectively. The healing rate per 2 weeks was significantly higher in the treatment than in the control group (0.78 ± 0.05 vs. 0.43 ± 0.04). There was no statistically significant difference in the platelets, Hb, albumin, and HbA1c levels in the treatment and control groups. CONCLUSIONS: Autologous platelet-rich gel combined with conventional treatment and TCM is effective and safe for DF ulcer treatment.


Assuntos
Diabetes Mellitus , Pé Diabético , Plasma Rico em Plaquetas , Humanos , Pé Diabético/diagnóstico , Pé Diabético/terapia , Medicina Tradicional Chinesa , Hemoglobinas Glicadas , Úlcera , Resultado do Tratamento , Albuminas
13.
Virol J ; 18(1): 238, 2021 11 30.
Artigo em Inglês | MEDLINE | ID: mdl-34847913

RESUMO

PURPOSE: To evaluate viral loads in children with human adenovirus (HAdV) pneumonia at different stages of disease and compare the viral load between upper and lower respiratory tract samples. METHODS: We prospectively enrolled children who required invasive ventilation for HAdV pneumonia. Nasopharyngeal aspirate (NPA) and tracheal aspirate (TA) samples were collected throughout the entire period of invasive ventilation. Viral detection and quantification were performed using quantitative real-time polymerase chain reaction. RESULTS: Ninety-four children were enrolled. The median age of the children was 12.0 months (IQR: 11.0-24.0), and > ninety percent of patients were aged between 6 and 59 months. Seven hundred and nine paired NPA-TA samples were collected. The median viral loads of the NPA and TA samples were 7.31 log10 and 7.50 log10 copies/mL, respectively. Viral loads generally decreased steadily over time. The median viral load after 1, 2, 3, and > 3 weeks of the disease course was 8.65, 7.70, 6.69, and 5.09 log10 copies/mL, respectively, in NPA samples and 8.67, 7.79, 7.08, and 5.53 log10 copies/mL, respectively, in TA samples. Viral load showed a significant negative correlation with time since symptom onset in both NPA samples (Spearman r = - 0.607, P = 0.000) and TA samples (Spearman r = - 0.544, P = 0.000). The predicted duration of HAdV shedding was 60.17 days in the NPA group and 65.81 days in the TA group. Viral loads in NPA and TA from the same subjects correlated well with each other (R2 = 0.694). HAdV loads in NPA and TA were most comparable during the early phase of infection (95% limits of agreement, - 1.36 to 1.30 log10 copies/mL, R2 = 0.746). Variation increased during the late phase of infection (i.e., in follow-up samples), with viral loads remaining significantly higher in TA than NPA. CONCLUSIONS: In children with HAdV pneumonia, viral loads in both NPA and TA steadily decreased during the course of the disease, and the predicted duration of viral shedding was more than 2 months. The HAdV DNA load of NPA is highly correlated with that of TA, especially in the initial phase of infection.


Assuntos
Adenovírus Humanos , Ventilação não Invasiva , Pneumonia , Infecções Respiratórias , Adenovírus Humanos/genética , Criança , Pré-Escolar , Humanos , Lactente , Nasofaringe , Carga Viral
14.
Clin Lab ; 67(8)2021 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-34383403

RESUMO

BACKGROUND: Gestational diabetes mellitus (GDM) is typically diagnosed based on a 75-g oral glucose tolerance test conducted at 24 - 28 weeks of pregnancy. A method for earlier diagnosis is needed. The present study aimed to identify one or more blood biomarkers detected within the first trimester that can predict the occurrence of GDM and pregnancy outcome. METHODS: This retrospective study included 2,116 pregnant women who underwent examination and delivery in our hospital between January 2018 and December 2019. The predictive value of various clinical measurements in early pregnancy for predicting GDM and pregnancy outcome was analyzed. RESULTS: The fasting plasma glucose (FPG), vitamin A, vitamin E, glycosylated hemoglobin (HbA1c), total cholesterol (TC), triglyceride (TG), uric acid, free thyroxine (FT3), anti-peroxidase antibody (TPOAb), and ferritin levels differed significantly between the GDM and non-GDM groups (all p < 0.05). The area under the receiver operating characteristic curve for FPG in GDM diagnosis was 0.766 (95% confidence interval [CI] 0.717 - 0.814, p < 0.001). The odds ratios (ORs) for FPG and TG for GDM prediction were 1.318 (95% CI 1.228 - 1.416) and 2.050 (95% CI 1.203 - 3.493), respectively. The ORs for FPG, vitamin A, and vitamin E for pregnancy outcome prediction were 1.214 (95% CI 1.123 - 1.268), 0.717 (95% CI 0.601 - 0.886), and 0.852 (95% CI 0.761 - 0.954), respectively. CONCLUSIONS: Screening of blood biomarkers in early pregnancy may be useful for predicting, and thus preventing, GDM and adverse pregnancy outcomes. Immediate intervention is recommended if an elevated FPG (> 4.7 mmol/L) or TG (> 1.83 mmol/L) level is detected in early pregnancy, and vitamin A, vitamin E, and FT3 levels need to be maintained within normal ranges throughout pregnancy.


Assuntos
Diabetes Gestacional , Biomarcadores , Glicemia , Diabetes Gestacional/diagnóstico , Feminino , Humanos , Gravidez , Resultado da Gravidez , Primeiro Trimestre da Gravidez , Estudos Retrospectivos
15.
Molecules ; 26(20)2021 Oct 11.
Artigo em Inglês | MEDLINE | ID: mdl-34684703

RESUMO

Epigallocatechin gallate (EGCG) is associated with various health benefits. In this review, we searched current work about the effects of EGCG and its wound dressings on skin for wound healing. Hydrogels, nanoparticles, micro/nanofiber networks and microneedles are the major types of EGCG-containing wound dressings. The beneficial effects of EGCG and its wound dressings at different stages of skin wound healing (hemostasis, inflammation, proliferation and tissue remodeling) were summarized based on the underlying mechanisms of antioxidant, anti-inflammatory, antimicrobial, angiogenesis and antifibrotic properties. This review expatiates on the rationale of using EGCG to promote skin wound healing and prevent scar formation, which provides a future clinical application direction of EGCG.


Assuntos
Catequina/análogos & derivados , Cicatrização/efeitos dos fármacos , Animais , Antibacterianos/farmacologia , Anti-Infecciosos/farmacologia , Antioxidantes/farmacologia , Bandagens/tendências , Catequina/metabolismo , Catequina/farmacologia , Cicatriz/prevenção & controle , Humanos , Hidrogéis/farmacologia , Pele/efeitos dos fármacos , Pele/metabolismo , Chá/metabolismo , Cicatrização/fisiologia
16.
Sichuan Da Xue Xue Bao Yi Xue Ban ; 52(2): 334-339, 2021 Mar.
Artigo em Zh | MEDLINE | ID: mdl-33829711

RESUMO

OBJECTIVE: To investigate the status of osteoporosis and cardiovascular calcification in patients with chronic kidney disease (CKD) with different stages, and analyze the correlation between the stages and markers of bone metabolism To correlation. METHODS: A total of 368 CKD patients at stage 3-5 who were treated in First Affiliated Hospital Affiliate to Chongqing Medical University and Chongqing Fuling Central Hospital from July 2017 to January 2018 were enrolled. A total of 60 healthy people who underwent physical examination in the hospital during the same period were enrolled as control group. Age, gender and body mass index (BMI) of all study objects at enrollment time were collected. The levels of estimate glomerular filtration rate (eGFR), serum calcium (Ca), phosphorus (P), albumin (ALB), intact parathyroid hormone (iPTH), bone alkaline phosphatase (BALP), procollagen Ⅰ N-terminal peptide (PINP) and ß-crosslaps (ß-CTX) were detected. The occurrence of osteoporosis, vascular calcification and heart valve calcification was detected. Pearson correlation analysis was applied to analyze correlation between eGFR, serum bone metabolism markers and osteoporosis, cardiovascular calcification. RESULTS: Compared with control group, levels of serum P, iPTH, BALP, PINP and ß-CTX were significantly increased in CKD stage 3-5 group ( P<0.05), while levels of eGFR and serum Ca were decreased ( P<0.05). With the increase of CKD staging, changes of their levels were more significant ( P<0.05). The incidence of vascular calcification and heart valve calcification in CKD stage 5 hemodialysis group was higher than that in CKD stage 3-4 group and CKD stage 5 without dialysis group ( P<0.05). eGFR was positively correlated with serum Ca in CKD patients at stage 3-5 ( P<0.05), while negatively correlated with serum P, iPTH, BALP, PINP and ß-CTX ( P<0.05). The occurrence of osteoporosis, vascular calcification and heart valve calcification was negatively correlated with increase of eGFR and serum Ca levels in CKD patients at stage 3-5 ( P<0.05), while positively correlated with increase of levels of serum P, iPTH, BALP, PINP and ß-CTX ( P<0.05). CONCLUSION: The levels of serum bone metabolism markers and eGFR are closely related to occurrence of osteoporosis and cardiovascular calcification in CKD patients at stage 3-5.


Assuntos
Osteoporose , Insuficiência Renal Crônica , Biomarcadores , Estudos Transversais , Taxa de Filtração Glomerular , Humanos , Osteoporose/etiologia , Hormônio Paratireóideo , Insuficiência Renal Crônica/complicações
17.
J Med Internet Res ; 22(9): e21915, 2020 09 30.
Artigo em Inglês | MEDLINE | ID: mdl-32931444

RESUMO

BACKGROUND: The COVID-19 pandemic is associated with common mental health problems. However, evidence for the association between fear of COVID-19 and obsessive-compulsive disorder (OCD) is limited. OBJECTIVE: This study aimed to examine if fear of negative events affects Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) scores in the context of a COVID-19-fear-invoking environment. METHODS: All participants were medical university students and voluntarily completed three surveys via smartphone or computer. Survey 1 was conducted on February 8, 2020, following a 2-week-long quarantine period without classes; survey 2 was conducted on March 25, 2020, when participants had been taking online courses for 2 weeks; and survey 3 was conducted on April 28, 2020, when no new cases had been reported for 2 weeks. The surveys comprised the Y-BOCS and the Zung Self-Rating Anxiety Scale (SAS); additional items included questions on demographics (age, gender, only child vs siblings, enrollment year, major), knowledge of COVID-19, and level of fear pertaining to COVID-19. RESULTS: In survey 1, 11.3% of participants (1519/13,478) scored ≥16 on the Y-BOCS (defined as possible OCD). In surveys 2 and 3, 3.6% (305/8162) and 3.5% (305/8511) of participants had scores indicative of possible OCD, respectively. The Y-BOCS score, anxiety level, quarantine level, and intensity of fear were significantly lower at surveys 2 and 3 than at survey 1 (P<.001 for all). Compared to those with a lower Y-BOCS score (<16), participants with possible OCD expressed greater intensity of fear and had higher SAS standard scores (P<.001). The regression linear analysis indicated that intensity of fear was positively correlated to the rate of possible OCD and the average total scores for the Y-BOCS in each survey (P<.001 for all). Multiple regressions showed that those with a higher intensity of fear, a higher anxiety level, of male gender, with sibling(s), and majoring in a nonmedicine discipline had a greater chance of having a higher Y-BOCS score in all surveys. These results were redemonstrated in the 5827 participants who completed both surveys 1 and 2 and in the 4006 participants who completed all three surveys. Furthermore, in matched participants, the Y-BOCS score was negatively correlated to changes in intensity of fear (r=0.74 for survey 2, P<.001; r=0.63 for survey 3, P=.006). CONCLUSIONS: Our findings indicate that fear of COVID-19 was associated with a greater Y-BOCS score, suggesting that an environment (COVID-19 pandemic) × psychology (fear and/or anxiety) interaction might be involved in OCD and that a fear of negative events might play a role in the etiology of OCD.


Assuntos
Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/psicologia , Inquéritos Epidemiológicos , Transtorno Obsessivo-Compulsivo/epidemiologia , Pneumonia Viral/epidemiologia , Pneumonia Viral/psicologia , Estudantes/psicologia , Estudantes/estatística & dados numéricos , Universidades , Adolescente , Adulto , Ansiedade/epidemiologia , Ansiedade/psicologia , COVID-19 , Medo , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Transtorno Obsessivo-Compulsivo/psicologia , Pandemias , Estudos Prospectivos , Escalas de Graduação Psiquiátrica , Adulto Jovem
18.
Ann Plast Surg ; 84(4): 351-355, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-31855862

RESUMO

BACKGROUND: Blepharoptosis is a common and challenging clinical problem for oculoplastic surgeons, and various surgical techniques have been used to correct ptosis. The aims of this study were to present the clinical results of a modified technique using levator aponeurosis-Müller muscle-reinforced plication for blepharoptosis correction and to demonstrate its advantages over conventional advancement or plication methods. METHODS: This study was conducted in the Plastic Surgery Department of Sir Run Run Shaw Hospital between April 2017 and September 2018. By using this modified technique, the levator-Müller complex was reinforced with a plication suture that pierced under and through the levator-Müller complex, and the posterior and lower part of the levator-Müller complex was advanced to the tarsus, which provided permanent, reliable adhesion. The primary outcome was marginal reflex distance 1 preoperatively and postoperatively. Secondary outcomes were the cosmetic outcome, complications, and operative time. RESULTS: Eighty-six patients (169 eyelids) underwent this modified surgery. Patients' average age was 26 ± 7.6 years, and the median follow-up was 14 months. The preoperative and postoperative mean marginal reflex distance 1 values were 1.72 ± 0.32 and 3.69 ± 0.28 mm, respectively. The amount of plication ranged from 4 to 15 mm. The overall surgical success rate was 88.17%. Some complications were observed including undercorrection (5.92%), asymmetry (4.73%), lagophthalmos (0.59%), and conjunctival prolapse (0.59%). CONCLUSIONS: The modified technique provided good functional and cosmetic outcomes for blepharoptosis correction by avoiding unpredicted adhesion, and it has its advantages including simplicity, easy adjustment of the eyelid height intraoperatively, minimal edema formation, and high success rate.


Assuntos
Blefaroplastia , Blefaroptose , Adolescente , Adulto , Aponeurose/cirurgia , Blefaroptose/cirurgia , Pálpebras/cirurgia , Humanos , Músculos Oculomotores/cirurgia , Estudos Retrospectivos , Adulto Jovem
19.
Sichuan Da Xue Xue Bao Yi Xue Ban ; 51(3): 376-382, 2020 May.
Artigo em Zh | MEDLINE | ID: mdl-32543146

RESUMO

OBJECTIVE: To explore the disparities of hypertension control rate and its affecting factors between plateau and plain regions in Sichuan province. METHODS: The cross-sectional study was conducted from May to September 2017. We recruited 231 subjects in Jinyang and Chenghua community health service center in Chengdu and 220 subjects in Jiulong County in Ganzi Autonomous Prefecture, Sichuan Province. Demographic characteristics, medical history, family history, lifestyle, cognitive function and medication compliance were collected using a structured questionnaire. Blood pressure and electrocardiogram were measured, and blood samples were collected among participants included in the study. Bivariate logistic regression analysis was used to investigate the affecting factors of hypertension control rate. All the statistical analyses were stratified by plateau and plain regions. RESULTS: Hypertension control rate in the plain group was higher than the plateau group (19.05% vs. 8.64%). The logistic regression model showed that the control rate of hypertension was higher among the participants who were 70-80 years old than 40-50 years old in the plain group ( OR=4.037, 95% CI: 1.269-12.848). Central obesity ( OR=0.480, 95% CI: 0.233-0.987) and high uric acids ( OR=0.994, 95% CI: 0.989-0.998) were the risk factors of control rate. In the plateau group, high medication compliance ( OR=4.793, 95% CI: 1.407-16.326) and high uric acids ( OR=1.008, 95% CI: 1.003-1.012) were the protective factors, and low cognitive function ( OR=0.234,95% CI:0.071-0.767) was risk factor. CONCLUSION: The control rate of hypertension in the plain is higher than that in the plateau. In the plain, the risk factors are central obesity and high uric acids, and aged 40-50 years. In the plateau, the risk factors are poor medication compliance and low cognitive function.


Assuntos
Altitude , Hipertensão , Adulto , Idoso , Idoso de 80 Anos ou mais , Pressão Sanguínea , China/epidemiologia , Estudos Transversais , Humanos , Hipertensão/epidemiologia , Pessoa de Meia-Idade , Prevalência , Fatores de Risco
20.
BMC Genomics ; 20(1): 213, 2019 Mar 13.
Artigo em Inglês | MEDLINE | ID: mdl-30866823

RESUMO

BACKGROUND: Cupressus gigantea, a rare and endangered tree species with remarkable medicinal value, is endemic to the Tibetan Plateau. Yet, little is known about the underlying genetics of the unique ecological adaptability of this extremely long-lived conifer with a large genome size. Here, we present its first de novo and multi-tissue transcriptome in-depth characterization. RESULTS: We performed Illumina paired-end sequencing and RNA libraries assembly derived from terminal buds, male and female strobili, biennial leaves, and cambium tissues taken from adult C. gigantea. In total, large-scale high-quality reads were assembled into 101,092 unigenes, with an average sequence length of 1029 bp, and 6848 unigenes (6.77%) were mapped against the KEGG databases to identify 292 pathways. A core set of 41,373 genes belonging to 2412 orthologous gene families shared between C. gigantea and nine other plants was revealed. In addition, we identified 2515 small to larger-size gene families containing in total 9223 genes specific to C. gigantea, and enriched for gene ontologies relating to biotic interactions. We identified an important terpene synthases gene family expansion with its 121 putative members. CONCLUSIONS: This study presents the first comprehensive transcriptome characterization of C. gigantea. Our results will facilitate functional genomic studies to support genetic improvement and conservation programs for this endangered conifer.


Assuntos
Adaptação Biológica , Alquil e Aril Transferases/genética , Cupressus/fisiologia , Perfilação da Expressão Gênica/métodos , Cupressus/genética , Espécies em Perigo de Extinção , Evolução Molecular , Regulação da Expressão Gênica de Plantas , Sequenciamento de Nucleotídeos em Larga Escala , Anotação de Sequência Molecular , Família Multigênica , Filogenia , Proteínas de Plantas/genética , Análise de Sequência de RNA
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