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1.
Mol Cell ; 65(2): 296-309, 2017 Jan 19.
Artigo em Inglês | MEDLINE | ID: mdl-28065600

RESUMO

In mammalian cells, histone deacetylase (HDAC) and Sirtuin (SIRT) are two families responsible for removing acetyl groups from acetylated proteins. Here, we describe protein deacetylation coupled with deacetylimination as a function of lysyl oxidase (LOX) family members. LOX-like 3 (Loxl3) associates with Stat3 in the nucleus to deacetylate and deacetyliminate Stat3 on multiple acetyl-lysine sites. Surprisingly, Loxl3 N-terminal scavenger receptor cysteine-rich (SRCR) repeats, rather than the C-terminal oxidase catalytic domain, represent the major deacetylase/deacetyliminase activity. Loxl3-mediated deacetylation/deacetylimination disrupts Stat3 dimerization, abolishes Stat3 transcription activity, and restricts cell proliferation. In Loxl3-/- mice, Stat3 is constitutively acetylated and naive CD4+ T cells are potentiated in Th17/Treg cell differentiation. When overexpressed, the SRCR repeats from other LOX family members can catalyze protein deacetylation/deacetylimination. Thus, our findings delineate a hitherto-unknown mechanism of protein deacetylation and deacetylimination catalyzed by lysyl oxidases.


Assuntos
Aminoácido Oxirredutases/metabolismo , Linfócitos T CD4-Positivos/enzimologia , Colite/enzimologia , Processamento de Proteína Pós-Traducional , Fator de Transcrição STAT3/metabolismo , Acetilação , Aminoácido Oxirredutases/deficiência , Aminoácido Oxirredutases/genética , Animais , Linfócitos T CD4-Positivos/imunologia , Catálise , Diferenciação Celular , Núcleo Celular/enzimologia , Proliferação de Células , Colite/genética , Colite/imunologia , Modelos Animais de Doenças , Genótipo , Células HEK293 , Células HeLa , Humanos , Células MCF-7 , Camundongos Endogâmicos C57BL , Camundongos Knockout , Fenótipo , Domínios Proteicos , Multimerização Proteica , Interferência de RNA , Fator de Transcrição STAT3/genética , Linfócitos T Reguladores/enzimologia , Linfócitos T Reguladores/imunologia , Células Th17/enzimologia , Células Th17/imunologia , Transcrição Gênica , Transfecção
2.
Clin Radiol ; 78(5): e386-e392, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36868973

RESUMO

AIM: To determine whether the mammography (MG)-based radiomics analysis and MG/ultrasound (US) imaging features could predict the malignant risk of phyllodes tumours (PTs) of the breast. MATERIALS AND METHODS: Seventy-five patients with PTs were included retrospectively (39 with benign PTs, 36 with borderline/malignant PTs) and divided into thetraining (n=52) and validation groups (n=23). The clinical information, MG and US imaging characteristics, and histogram features were extracted from craniocaudal (CC) and mediolateral oblique (MLO) images. The lesion region of interest (ROI) and perilesional ROI were delineated. Multivariate logistic regression analysis was performed to determine the malignant factors of PTs. Receiver operating characteristic (ROC) curves were generated, and the area under the curve (AUC), sensitivity, and specificity were calculated. RESULTS: There was no significant difference found in the clinical or MG/US features between benign and borderline/malignant PTs. In the lesion ROI, variance in the CC view and mean and variance in the MLO view were independent predictors. The AUC was 0.942, sensitivity and specificity were 96.3% and 92%, respectively, in the training group. In the validation group, the AUC was 0.879, the sensitivity was 91.7%, and the specificity was 81.8%. In the perilesional ROI, the AUCs were 0.904 and 0.939, sensitivities were 88.9% and 91.7%, and the specificities were 92% and 90.9% in the training and validation groups, respectively. CONCLUSIONS: MG-based radiomic features could predict the risk of malignancy of patients with PTs and may be used as a potential tool to differentiate benign and borderline/malignant PTs.


Assuntos
Neoplasias da Mama , Tumor Filoide , Feminino , Humanos , Estudos Retrospectivos , Tumor Filoide/diagnóstico por imagem , Tumor Filoide/patologia , Mama/diagnóstico por imagem , Mama/patologia , Mamografia/métodos , Neoplasias da Mama/diagnóstico por imagem , Neoplasias da Mama/patologia
3.
Stud Mycol ; 104: 1-85, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-37351542

RESUMO

Fruiting bodies (sporocarps, sporophores or basidiomata) of mushroom-forming fungi (Agaricomycetes) are among the most complex structures produced by fungi. Unlike vegetative hyphae, fruiting bodies grow determinately and follow a genetically encoded developmental program that orchestrates their growth, tissue differentiation and sexual sporulation. In spite of more than a century of research, our understanding of the molecular details of fruiting body morphogenesis is still limited and a general synthesis on the genetics of this complex process is lacking. In this paper, we aim at a comprehensive identification of conserved genes related to fruiting body morphogenesis and distil novel functional hypotheses for functionally poorly characterised ones. As a result of this analysis, we report 921 conserved developmentally expressed gene families, only a few dozens of which have previously been reported to be involved in fruiting body development. Based on literature data, conserved expression patterns and functional annotations, we provide hypotheses on the potential role of these gene families in fruiting body development, yielding the most complete description of molecular processes in fruiting body morphogenesis to date. We discuss genes related to the initiation of fruiting, differentiation, growth, cell surface and cell wall, defence, transcriptional regulation as well as signal transduction. Based on these data we derive a general model of fruiting body development, which includes an early, proliferative phase that is mostly concerned with laying out the mushroom body plan (via cell division and differentiation), and a second phase of growth via cell expansion as well as meiotic events and sporulation. Altogether, our discussions cover 1 480 genes of Coprinopsis cinerea, and their orthologs in Agaricus bisporus, Cyclocybe aegerita, Armillaria ostoyae, Auriculariopsis ampla, Laccaria bicolor, Lentinula edodes, Lentinus tigrinus, Mycena kentingensis, Phanerochaete chrysosporium, Pleurotus ostreatus, and Schizophyllum commune, providing functional hypotheses for ~10 % of genes in the genomes of these species. Although experimental evidence for the role of these genes will need to be established in the future, our data provide a roadmap for guiding functional analyses of fruiting related genes in the Agaricomycetes. We anticipate that the gene compendium presented here, combined with developments in functional genomics approaches will contribute to uncovering the genetic bases of one of the most spectacular multicellular developmental processes in fungi. Citation: Nagy LG, Vonk PJ, Künzler M, Földi C, Virágh M, Ohm RA, Hennicke F, Bálint B, Csernetics Á, Hegedüs B, Hou Z, Liu XB, Nan S, M. Pareek M, Sahu N, Szathmári B, Varga T, Wu W, Yang X, Merényi Z (2023). Lessons on fruiting body morphogenesis from genomes and transcriptomes of Agaricomycetes. Studies in Mycology 104: 1-85. doi: 10.3114/sim.2022.104.01.

4.
Tech Coloproctol ; 26(10): 783-795, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-35347492

RESUMO

BACKGROUND: Video-assisted anal fistula treatment (VAAFT) has gained increasing acceptance as a sphincter-sparing procedure for treating complex anorectal fistulas (CAF), but no unequivocal conclusions can yet be drawn regarding its ultimate effectiveness. We reviewed the literature and performed a meta-analysis to evaluate the efficacy and safety of VAAFT in CAF patients. METHODS: The study protocol was registered with the PROSPERO database (CRD42021279085). A systematic literature search was performed in the PubMed, Embase, and Cochrane Library databases up to June 2021 with no restriction on language based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. We used the keywords video-assisted surgery, video-assisted anal fistula treatment, and complex anorectal fistula to identify relevant studies. RESULTS: Fourteen trials (7 prospective and 7 retrospective) with a total of 1201 patients (mean age 43.5 years) were included. The median follow-up duration was 16.5(8-48) months. Pooled analysis showed that the rates of success, recurrence and postoperative complication across the studies were 83% (95% CI 81-85%, I2 = 37.9%), 16% (95% CI 14-18%, I2 = 4.8%), 11% (95% CI 7-15%, I2 = 72.1%), respectively. The postoperative Jorge-Wexner score used to assess the level of anal incontinence was 1.09 (95% CI, 0.9-1.27, I2 = 74.6%). The internal opening detection rate was 97.6% (95% CI 96.1-99.6%, I2 = 48.2%). Recurrence rates varied according to the closure method of internal opening from 21.4% after using staplers, 18.7% after suturing, to 23.5% after advancement flap. The hospital stay was 3.15 days (95% CI 2.96-3.35, I2 = 49.7%). Subgroup analysis indicated that the risk of heterogeneity in the urine retention group was higher  compared with that of the overall group and that retrospective studies may be the source of heterogeneity for postoperative anal incontinence. r . Sensitivity analysis confirmed the stability of the pooled results. Begg's and Egger's tests showed no evidence of publication bias. CONCLUSIONS: According to the available evidence, VAAFT may be a valuable alternative to fistulotomy or seton in treating CAF and has the additional long-term benefits of reducing anal incontinence and surgical morbidity, permitting earlier healing and accelerated rehabilitation.


Assuntos
Incontinência Fecal , Fístula Retal , Adulto , Canal Anal/cirurgia , Incontinência Fecal/complicações , Incontinência Fecal/cirurgia , Humanos , Tratamentos com Preservação do Órgão/efeitos adversos , Estudos Prospectivos , Fístula Retal/etiologia , Fístula Retal/cirurgia , Estudos Retrospectivos , Resultado do Tratamento , Cirurgia Vídeoassistida/métodos
5.
Zhonghua Zhong Liu Za Zhi ; 43(12): 1248-1254, 2021 Dec 23.
Artigo em Zh | MEDLINE | ID: mdl-34915632

RESUMO

Objective: To establish a cytokine release syndrome (CRS) mouse model related to CAR-T cell therapy and provide a research model for the clinical phenomena. Methods: CAR-T cells targeting human CD19 molecule were constructed by molecular cloning and lentiviral transfection. Flow cytometry (FACS) was used to detect the transfection efficiency of CAR-T cells. The tumor-killing efficiency of CAR-T cells was detected by ELISA and flow cytometry. The CAR-T cells were injected into the tumor-bearing SCID/Beige mice through tail vein, and divided into phosphate buffered solution (PBS) group, low-burden group (1×10(5) Raji-Luc2 cells) and high-burden group (5×10(5) Raji-Luc2 cells). The tumor treatment effect was detected by animal in vivo imaging. Serum levels of cytokines including human IFN-γ, human IL-2, mouse IL-6, and mouse GM-CSF were measured by ELISA. The health status of the mice was evaluated by pathological examination. Results: The health scores of T cell group and T cell+ OKT-3 group were (1.15±0.08) and (2.90±0.15), respectively, after the injection of human T cell and T cell + OKT-3 antibody through tail vein, and the difference was statistically significant (P<0.001). The serum levels of human IL-2, human IFN-γ, human IL-15, mouse IL-6 and mouse GM-CSF in T cell+ OKT-3 group were (1 064.00±50.14), (1 285.00±193.90), (202.4±18.76), (1 478.00±289.20) and (350.70±42.27) pg/ml, respectively, higher than (22.67±6.36), (23.67±3.71), (44.33±14.45), (147.30±36.20), (138.00±22.74) pg/ml in T cell group (P<0.05). OKT-3 combined with human T cells caused a rapid increase in serum levels of human IL-2, human IFN-γ, mouse IL-6 and mouse GM-CSF, accompanied by an increase in body temperature and weight loss. CD19-targeting CAR-T cells were successfully constructed, and the positive rate of CAR-T cells was >30% detected by flow cytometry. ELISA results showed that in the presence of CD19 antigen, IL-2 and IFN-γ secreted by CAR-T19 cells co-incubated with Raji and Nalm were (561.00±37.07), (680.30±71.27), (369±25.71) and (523.00±26.31) pg/ml, respectively, higher than (55.00±20.53) and (64.00±7.55) pg/ml in the co-incubated with K562 group (P<0.001). Activated CAR-T19 cells were reinjected through the tail vein on the seventh day after tumor formation. Imaging experiments in mice showed that on the thirteenth day after tumor formation, the fluorescence intensities of tumors in the low-burden and high-burden groups were lower than on the seventh day of tumor inoculation, and the fluorescence intensity of tumors in the high-burden group decreased from 144.00±24.69 to 5.02±2.35 (P=0.005). The fluorescence intensity of low burden group decreased from 58.47±9.36 to 3.48±1.67 (P=0.004). The serum levels of T cell activation related cytokines IL-2, IL-15 and IFN-γ increased rapidly, and the secretion of monocyte related cytokines IL-16 and GM-CSF increased, accompanied by the typical characteristics of CRS such as increased body temperature and weight loss at 72 hours after injection of CAR-T19 cells. Conclusions: CAR-T cells targeting CD19 molecule are successfully constructed, and CRS phenomenon is verified in tumor-bearing mice by CAR-T cell re-infusion, providing an animal model for the mechanism of CAR-T treatment-related CRS and CRS prevention strategies.


Assuntos
Síndrome da Liberação de Citocina , Imunoterapia Adotiva/efeitos adversos , Animais , Modelos Animais de Doenças , Camundongos , Camundongos SCID , Receptores de Antígenos Quiméricos , Linfócitos T
6.
Zhongguo Zhong Yao Za Zhi ; 45(18): 4307-4315, 2020 Sep.
Artigo em Zh | MEDLINE | ID: mdl-33164357

RESUMO

Pudilan Xiaoyan Oral Liquid has been widely used in the clinical treatment of inflammatory diseases such as upper respiratory tract infections. Taraxaci Herba, as the monarch medicine in Pudilan Xiaoyan Oral Liquid, due to its multi-source, multi-origin characteristics, and the difference in the content of active ingredients in different medicinal parts, has become a potential factor for the unstable quality among different batches of Pudilan Xiaoyan Oral Liquid. In this paper, Thermo Scientific Vanquish ultra-high-performance liquid chromatography(UPLC) system was used, and the Chinese Medicine Chromatographic Fingerprint Similarity Evaluation System(2012 Edition) issued by National Pharmacopoeia Commission was used for processing and analysis. The main common peaks were identified and contents were determined by comparison with reference substances. Fingerprints of Taraxaci Herba medicinal materials from different origins were established. 13 common peaks were identified, and 29 batches of samples from five origins had similarities above 0.90. At the same time, an ultra-high performance liquid chromatography method was developed for the determination of monocaffeoyl tartaric acid, chlorogenic acid, caffeic acid, chicoic acid, and luteolin in Taraxaci Herba. The quantitative analysis conditions were verified by methodology, and the average sample recovery was 97.30%-101.8%. The results showed that the content of the same ingredient in Taraxaci Herba from different origins and different medicinal parts was obviously different, and the fluctua-tion range was also different for different ingredients. The establishment of UPLC fingerprints for Taraxaci Herba from different regions combined with multi-component content determination methods provides a reference for improving the quality control of Taraxaci Herba medicinal materials, and also provides a source guarantee for the quality improvement of Pudilan Xiaoyan Oral Liquid.


Assuntos
Medicamentos de Ervas Chinesas , Ácido Clorogênico , Cromatografia Líquida de Alta Pressão , Controle de Qualidade
7.
Rev Sci Tech ; 38(1): 271-278, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-31564723

RESUMO

Within the last decade, One Health has gained momentum in government agencies, academic institutions, intergovernmental organisations and civil society organisations within Thailand. One Health is an approach of multisectoral and multidisciplinary collaboration that connects human, animal and environmental health sectors to improve the health of all. In 2014, the Coordinating Unit for One Health (CUOH), based within the Thai Ministry of Public Health, was officially established to serve as a focal point within Thailand for One Health collaboration both domestically and internationally. The unit's main functions are to share data, information and resources, and to support One Health activities within the country. The CUOH Steering Committee meets regularly to provide technical and administrative guidance on the functions and directions of the CUOH. A memorandum of understanding on One Health, signed in 2016 by seven Ministries and the Thai Red Cross Society, has strengthened One Health collaboration and provides a formalised channel through which the CUOH can facilitate activities across Ministries and with non-governmental agencies in Thailand.


En l'espace d'une décennie, le recours aux méthodes Une seule santé en Thaïlande s'est intensifié au sein des agences gouvernementales, des institutions académiques, des organisations intergouvernementales et des organisations de la société civile. La collaboration multisectorielle et pluridisciplinaire mise en place selon les principes Une seule santé vise à connecter les secteurs de la santé publique, la santé animale et la santé environnementale afin d'améliorer la santé pour tous. En 2014, l'Unité de coordination Une seule santé (CUOH) a été officiellement créée au sein du ministère thaïlandais de la santé publique dans le but de servir de point focal national pour la collaboration Une seule santé aussi bien dans le pays qu'au niveau international. L'Unité a pour principales fonctions le partage de données, d'informations et de ressources et le soutien aux activités Une seule santé dans le pays. Le comité directeur de la CUOH se réunit régulièrement pour fixer les orientations techniques et administratives des tâches et des objectifs de l'Unité. Un protocole d'accord sur le thème Une seule santé signé en 2016 par sept ministères et la Société thaïlandaise de la Croix rouge renforce cette collaboration Une seule santé et fournit un canal officiel grâce auquel la CUOH peut déployer des activités transversales faisant intervenir plusieurs ministères et organisations non gouvernementales en Thaïlande.


En el curso del último decenio, la noción de Una sola salud ha ido ganando presencia y peso en el seno de organismos públicos, instituciones universitarias, organizaciones intergubernamentales y entidades de la sociedad civil de Tailandia. La filosofía de Una sola salud se traduce en un trabajo de colaboración multisectorial y pluridisciplinar que conecta entre sí los sectores de la salud humana, animal y ambiental con el objetivo último de hacer realidad un mejor estado de salud para todos. En 2014 se estableció oficialmente dentro del Ministerio de Salud Pública de Tailandia la Unidad de Coordinación en pro de Una sola salud, que tiene por cometido ejercer de enlace dentro del país de todas las actividades de colaboración en clave de Una sola salud, ya sean nacionales o internacionales. Sus principales funciones son el intercambio de datos, información y recursos y la prestación de apoyo a dichas actividades dentro del país. Su Comité de Dirección se reúne periódicamente para marcar pautas técnicas y administrativas sobre las funciones y las líneas de trabajo de la Unidad. En 2016, siete ministerios y la Sociedad Tailandesa de la Cruz Roja suscribieron un memorando de entendimiento en torno a la noción de Una sola salud que, además de reforzar la colaboración encuadrada en esta filosofía, abre un cauce oficial a través del cual la Unidad puede facilitar el trabajo interministerial o la colaboración con entidades no gubernamentales en Tailandia.


Assuntos
Órgãos Governamentais , Saúde Única , Animais , Órgãos Governamentais/tendências , Humanos , Saúde Única/normas , Saúde Pública , Tailândia
8.
Br J Anaesth ; 119(2): 231-238, 2017 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-28854530

RESUMO

BACKGROUND: Checklists can reduce medical errors. However, the effectiveness of checklists is hampered by lack of acceptance and compliance. Recently, a new type of checklist with dynamic properties has been created to provide more specific checklist items for each individual patient. Our purpose in this simulation-based study was to investigate a newly developed intelligent dynamic clinical checklist (DCC) for the intensive care unit (ICU) ward round. METHODS: Eligible clinicians were invited to participate as volunteers. Highest achievable scores were established for six typical ICU scenarios to determine which items must be checked. The participants compared the DCC with the local standard of care. The primary outcomes were the caregiver satisfaction score and the percentages of checked items overall and of critical items requiring a direct intervention. RESULTS: In total, 20 participants were included, who performed 116 scenarios. The median percentage of checked items was 100.0% with the DCC and 73.6% for the scenarios completed with local standard of care ( P <0.001). Critical items remained unchecked in 23.1% of the scenarios performed with local standard of care and 0.0% of the scenarios where the DCC was available ( P <0.001). The mean satisfaction score of the DCC was 4.13 out of 5. CONCLUSIONS: This simulation study indicates that an intelligent DCC significantly increases compliance with best practice by reducing the percentage of unchecked items during ICU ward rounds, while the user satisfaction rate remains high. Real-life clinical research is required to evaluate this new type of checklist further.


Assuntos
Lista de Checagem , Unidades de Terapia Intensiva , Adulto , Idoso , Estudos Cross-Over , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Satisfação Pessoal , Estudos Prospectivos
9.
BMC Public Health ; 15: 1285, 2015 Dec 23.
Artigo em Inglês | MEDLINE | ID: mdl-26700478

RESUMO

BACKGROUND: An in-depth epidemiological investigation on intestinal parasite infections in an impoverished area of Port Elizabeth, South Africa provides a unique opportunity for research on its impact on children's physical fitness, cognitive performance and psychosocial health. Additionally, we will screen risk factors for the development of diabetes and hypertension in adulthood. METHODS/DESIGN: A 2-year longitudinal cohort study will be conducted, consisting of three cross-sectional surveys (baseline and two follow-ups), in eight historically black and coloured (mixed race) primary schools located in different townships in Port Elizabeth, South Africa. Approximately 1000 Grade 4 primary schoolchildren, aged 8 to 12 years, will be enrolled and followed. At each survey, disease status, anthropometry and levels of physical fitness, cognitive performance and psychosocial health will be assessed. After each survey, individuals diagnosed with parasitic worm infections will be treated with anthelminthic drugs, while children with other infections will be referred to local clinics. Based on baseline results, interventions will be tailored to the local settings, embedded within the study and implemented in half of the schools, while the remaining schools will serve as controls. Implementation of the interventions will take place over two 8-week periods. The effect of interventions will be determined with predefined health parameters. DISCUSSION: This study will shed new light on the health burden incurred by children in deprived urban settings of South Africa and provide guidance for specific health interventions. Challenges foreseen in the conduct of this study include: (i) difficulty in obtaining written informed consent from parents/guardians; (ii) administration of questionnaires in schools where three languages are spoken (Afrikaans, Xhosa and English); (iii) challenges in grasping concepts of psychosocial health among schoolchildren using a questionnaire; and (iv) loss to follow-up due to the study setting where illiteracy, mobility and violence are common. Finally, designing the health interventions together with local principals and teachers will allow all concerned with the research to bolster a sense of community ownership and sustained use of the interventions after the study has ceased. TRIAL REGISTRATION: Controlled-trials.com; identifier: ISRCTN68411960 (date assigned: 14 February 2014).


Assuntos
Proteção da Criança/estatística & dados numéricos , Promoção da Saúde/métodos , Enteropatias Parasitárias/epidemiologia , Enteropatias Parasitárias/prevenção & controle , Anti-Helmínticos/uso terapêutico , Criança , Desenvolvimento Infantil/efeitos dos fármacos , Estudos de Coortes , Estudos Transversais , Feminino , Humanos , Estudos Longitudinais , Masculino , Fatores de Risco , Instituições Acadêmicas , África do Sul , Inquéritos e Questionários
11.
Acta Physiol (Oxf) ; 239(1): e13982, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-37097015

RESUMO

AIM: While manual quantification is still considered the gold standard for skeletal muscle histological analysis, it is time-consuming and prone to investigator bias. To address this challenge, we assembled an automated image analysis pipeline, FiNuTyper (Fiber and Nucleus Typer). METHODS: We integrated recently developed deep learning-based image segmentation methods, optimized for unbiased evaluation of fresh and postmortem human skeletal muscle, and utilized SERCA1 and SERCA2 as type-specific myonucleus and myofiber markers after validating them against the traditional use of MyHC isoforms. RESULTS: Parameters including cross-sectional area, myonuclei per fiber, myonuclear domain, central myonuclei per fiber, and grouped myofiber ratio were determined in a fiber-type-specific manner, revealing that a large degree of sex- and muscle-related heterogeneity could be detected using the pipeline. Our platform was also tested on pathological muscle tissue (ALS and IBM) and adapted for the detection of other resident cell types (leucocytes, satellite cells, capillary endothelium). CONCLUSION: In summary, we present an automated image analysis tool for the simultaneous quantification of myofiber and myonuclear types, to characterize the composition and structure of healthy and diseased human skeletal muscle.


Assuntos
Aprendizado Profundo , Células Satélites de Músculo Esquelético , Humanos , Fibras Musculares Esqueléticas/metabolismo , Músculo Esquelético , Núcleo Celular/metabolismo
12.
Aging Ment Health ; 16(2): 189-98, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22032625

RESUMO

BACKGROUND: This study examined the effects of religiosity on the trajectories of depressive symptoms in a sample of community-dwelling older adults over a four-year period in a Southern state in the U.S. METHODS: Data from the University of Alabama at Birmingham (UAB) Study of Aging were analyzed using a hierarchical linear modeling (HLM) method. This study involved 1000 participants aged 65 and above (M age = 75 at baseline, SD = 5.97) and data were collected annually from 1999 to 2003. The Geriatric Depression Scale measured depressive symptoms; the Duke University Religion Index measured religious service attendance, prayer, and intrinsic religiosity; and control variables included sociodemographics, health, and social and economic factors. RESULTS: The HLM analysis indicated a curvilinear trajectory of depressive symptoms over time. At baseline, participants who attended religious services more frequently tended to report fewer depressive symptoms. Participants with the highest levels of intrinsic religiosity at baseline experienced a steady decline in the number of depressive symptoms over the four-year period, while those with lower levels of intrinsic religiosity experienced a short-term decline followed by an increase in the number of depressive symptoms. IMPLICATIONS: In addition to facilitating access to health, social support and financial resources for older adults, service professionals might consider culturally appropriate, patient-centered interventions that boost the salutary effects of intrinsic religiosity on depressive symptoms.


Assuntos
Depressão/fisiopatologia , Religião , Espiritualidade , Adaptação Psicológica , Idoso , Idoso de 80 Anos ou mais , Alabama , Progressão da Doença , Feminino , Avaliação Geriátrica , Humanos , Estudos Longitudinais , Masculino , Meio Social , Apoio Social
13.
Nan Fang Yi Ke Da Xue Xue Bao ; 42(11): 1726-1731, 2022 Nov 20.
Artigo em Zh | MEDLINE | ID: mdl-36504067

RESUMO

OBJECTIVE: To study the regulatory effect of Cheng's Juanbi Decoction (JBT) on autophagy in rheumatoid arthritis fibroblast-like synoviocytes (RA-FLS) and role of PI3K/Akt/mTOR signaling axis in the mechanism mediating this effect. METHODS: CCK8 assay was used to determine the optimal concentration and treatment time of JBT for inhibiting the viability of RA- FLS. The effect of freeze-dried powder of JBT, RAPA, or both on morphology of the autophagosomes in RA-FLS was observed under transmission electron microscope, and the changes in the number of autophagosomes and autolysosomes were observed with autophagy double-labeled adenovirus experiment. RT-qPCR and Western blotting were used to detect the expression levels of the related indicators. RESULTS: The results of CCK8 assay showed that treatment with 0.5 mg/mL JBT for 12 h produced the optimal effect for inhibiting RA-FLS viability. Observation with transmission electron microscope and the results of the autophagy double-labeled adenovirus experiment both showed the presence of a small number of autophagosomes in control RA-FLS group, and treatment with JBT significantly increased the number of autophagosomes and lowered the number of autophagolysosomes in the cells. Compared with the control cells and the cells treated with JBT or RAPA alone, the cells treated with both JBT and RAPA showed significantly decreased mRNA levels of PI3K, Akt and mTOR (P < 0.01) but without significant changes in their protein expressions (P > 0.05); the combined treatment significantly inhibited the protein expressions of p-PI3K, p-Akt, p-mTOR, and P62 (P < 0.05) and upregulated the protein expressions of Beclin-1 and LC3B (P < 0.05) in the cells. CONCLUSION: JBT can inhibit the survival rate of RA-FLS and increase the level of autophagy possibly through a mechanism that down-regulates PI3K/Akt/mTOR signaling pathway.


Assuntos
Artrite Reumatoide , Sinoviócitos , Humanos , Fosfatidilinositol 3-Quinases , Autofagia , Fibroblastos , Adenoviridae , Serina-Treonina Quinases TOR
14.
Br J Clin Pharmacol ; 71(5): 737-50, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-21480951

RESUMO

AIM: To investigate the impact of genetic polymorphisms in CYP2D6, CYP3A5, CYP2C9 and CYP2C19 on the pharmacokinetics of tamoxifen and its metabolites in Asian breast cancer patients. METHODS: A total of 165 Asian breast cancer patients receiving 20 mg tamoxifen daily and 228 healthy Asian subjects (Chinese, Malay and Indian; n= 76 each) were recruited. The steady-state plasma concentrations of tamoxifen and its metabolites were quantified using high-performance liquid chromatography. The CYP2D6 polymorphisms were genotyped using the INFINITI™ CYP450 2D6I assay, while the polymorphisms in CYP3A5, CYP2C9 and CYP2C19 were determined via direct sequencing. RESULTS: The polymorphisms, CYP2D6*5 and *10, were significantly associated with lower endoxifen and higher N-desmethyltamoxifen (NDM) concentrations. Patients who were *1/*1 carriers exhibited 2.4- to 2.6-fold higher endoxifen concentrations and 1.9- to 2.1-fold lower NDM concentrations than either *10/*10 or *5/*10 carriers (P < 0.001). Similarly, the endoxifen concentrations were found to be 1.8- to 2.6-times higher in *1/*5 or *1/*10 carriers compared with *10/*10 and *5/*10 carriers (P≤ 0.001). Similar relationships were observed between the CYP2D6 polymorphisms and metabolic ratios of tamoxifen and its metabolites. No significant associations were observed with regards to the polymorphisms in CYP3A5, CYP2C9 and CYP2C19. CONCLUSIONS: The present study in Asian breast cancer patients showed that CYP2D6*5/*10 and *10/*10 genotypes are associated with significantly lower concentrations of the active metabolite of tamoxifen, endoxifen. Identifying such patients before the start of treatment may be useful in optimizing therapy with tamoxifen. The role of CYP3A5, CYP2C9 and CYP2C19 seem to be minor.


Assuntos
Antineoplásicos Hormonais/sangue , Neoplasias da Mama/sangue , Neoplasias da Mama/genética , Sistema Enzimático do Citocromo P-450/genética , Polimorfismo Genético , Tamoxifeno/sangue , Adulto , Idoso , Hidrocarboneto de Aril Hidroxilases/genética , Povo Asiático/genética , Neoplasias da Mama/etnologia , Citocromo P-450 CYP2C19 , Citocromo P-450 CYP2C9 , Citocromo P-450 CYP2D6/genética , Citocromo P-450 CYP3A/genética , Feminino , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos , Tamoxifeno/análogos & derivados
15.
Child Youth Serv Rev ; 32(3): 409-415, 2010 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-20161497

RESUMO

Antisocial behavior among youth remains a serious personal and social problem in the United States. The purposes of this study were to (1) identify the shape and number of developmental trajectories of antisocial behavior in a sample of poor, inner-city African American youth, and (2) test predictors of group membership and the developmental course of antisocial behaviors. Using growth mixture modeling, we examined predictors of antisocial behavior pathways and the likelihood of arrest in a sample of 566 poor, urban African American adolescents (ages 11 to 16). Three distinct trajectory classes of antisocial behavior were identified over a period of six years: one low-risk group (low steady) and two high-risk groups (incremental and high starter). The conditional probabilities for being arrested during ages 14-16 were 0.18 for the low steady class, 0.68 for the incremental class, and 0.31 for high starter class. Prevention strategies for adolescents at high risk are discussed.

16.
Innov Aging ; 3(3): igz013, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31263789

RESUMO

BACKGROUND AND OBJECTIVES: Recognizing the important role that dementia-specific adult day centers have in maintaining persons with a neurocognitive disorder in their home, this article examines three critical indicators at the time when people first enroll in such a center: cognitive and functional impairment of the enrollee, and burden reported by their family caregivers. We also considered variations in these 3 indicators by race/ethnicity and by the relationship of caregiver to the new enrollee. RESEARCH DESIGN AND METHODS: We conducted a secondary analysis of data collected by a nonprofit organization operating 11 dementia-specific adult day centers located on the east coast of Florida. Nursing staff conducted intake interviews with enrollees and their caregivers, and assessed functional status within one month of admission. Instruments included the Zarit Burden Scale and components of the Minimum Data Set: the Brief Interview for Mental Status (BIMS) and 4 measures of functional status. RESULTS: On average the cognitive scores of newly enrollees were well-within the range indicated for severe impairment, and these levels did not differ by race/ethnicity. Burden reported by caregivers however differed significantly, with Latinx caregivers reporting the greatest burden and African American/Black caregivers reporting the least. Further, while daughters generally reported higher levels of burden than other family caregivers, Black daughters reported the least. DISCUSSION AND IMPLICATIONS: Results suggest a need for greater dissemination efforts about adult day programs to the Latinx community, as well as attention to the disparate burden placed upon differing family relationships of caregivers to enrollees.

17.
J Grad Med Educ ; 11(6): 649-653, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-31871563

RESUMO

BACKGROUND: Graduates of emergency medicine residency programs can seek certification from the American Board of Emergency Medicine (ABEM), yet the costs and perceived value by residents is not clear. OBJECTIVE: This report sought to better define the value of board certification by asking physicians taking the ABEM Oral Certification Examination (OCE) to describe its costs (eg, time, money) and perceived benefits. METHODS: A descriptive, cross-sectional, voluntary, anonymous survey was administered to physicians taking the 2018 spring and fall ABEM OCEs. Response frequencies were used to report response rates. RESULTS: There were 2016 physicians who participated in the 2018 OCEs, of whom 1565 (78%) completed a survey. With respect to preparation, 38% (599 of 1565 responses) spent more than 30 hours preparing for the examination. Regarding the expense of preparing for the examination, 21% (328) spent nothing, 50% (776) spent less than $1,000, and 2% (38) spent more than $3,000. Most physicians (80%, 1254) reported a learning benefit to preparing for and taking the OCE. There were 49% (765) of respondents who reported that preparing for the examination reinforced their knowledge of emergency medicine; 20% (311) reported no learning benefit. Most physicians (92%, 1442) reported that ABEM certification provided a career benefit, the most common of which was more career opportunities (69%, 1076). CONCLUSIONS: Initial certification requires a considerable investment of time and money. Physicians seeking initial ABEM certification found both learning and professional benefits, with the most frequently reported being reinforcement of medical knowledge and more career opportunities.


Assuntos
Certificação/economia , Medicina de Emergência/educação , Médicos/estatística & dados numéricos , Análise Custo-Benefício , Estudos Transversais , Humanos , Inquéritos e Questionários , Estados Unidos
18.
Artigo em Inglês | MEDLINE | ID: mdl-30650624

RESUMO

Obesity-related conditions impose a considerable and growing burden on low- and middle-income countries, including South Africa. We aimed to assess the effect of twice a 10-week multidimensional, school-based physical activity intervention on children's health in Port Elizabeth, South Africa. A cluster-randomised controlled trial was implemented from February 2015 to May 2016 in grade 4 classes in eight disadvantaged primary schools. Interventions consisted of physical education lessons, moving-to-music classes, in-class activity breaks and school infrastructure enhancement to promote physical activity. Primary outcomes included cardiorespiratory fitness, body mass index (BMI) and skinfold thickness. Explanatory variables were socioeconomic status, self-reported physical activity, stunting, anaemia and parasite infections. Complete data were available from 746 children. A significantly lower increase in the mean BMI Z-score (estimate of difference in mean change: -0.17; 95% confidence interval (CI): -0.24 to -0.09; p < 0.001) and reduced increase in the mean skinfold thickness (difference in mean change: -1.06; 95% CI: -1.83 to -0.29; p = 0.007) was observed in intervention schools. No significant group difference occurred in the mean change of cardiorespiratory fitness (p > 0.05). These findings show that a multidimensional, school-based physical activity intervention can reduce the increase in specific cardiovascular risk factors. However, a longer and more intensive intervention might be necessary to improve cardiorespiratory fitness.


Assuntos
Exercício Físico , Aptidão Física , Instituições Acadêmicas , Índice de Massa Corporal , Criança , Feminino , Humanos , Masculino , Obesidade , Educação Física e Treinamento , Classe Social , África do Sul , Populações Vulneráveis
19.
Gerontologist ; 48(2): 203-12, 2008 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-18483432

RESUMO

PURPOSE: Researchers know little about the physical performance ability of residential care/assisted living (RC/AL) residents and its relationship to adverse outcomes such as fracture, nursing home placement, functional decline, and death. The purposes of this article are to (a) describe the functional characteristics of RC/AL residents, (b) examine the relationships between resident- and facility-level characteristics and physical performance, and (c) determine the predictive value of physical performance for adverse outcomes. DESIGN AND METHODS: Data came from 1,791 residents in 189 RC/AL facilities participating in the Collaborative Studies of Long-Term Care. At baseline, residents were tested on four performance measures (grip strength, chair rise, balance, and walking speed), and other resident- and facility-level information was collected. Adverse outcomes were measured over 1 year. RESULTS: Average grip strength was 14 +/- 7 kg, 61% of residents walked <0.6 m/s (M = 0.41 m/s), 26% could perform five chair rises, and only 19% could perform a tandem stand for a least 1 s. Multivariable analyses showed that more cognitive and functional impairment, depressive symptoms and comorbid conditions, and for-profit ownership were associated with poorer physical performance. Controlling for individual characteristics, we found that better performance on the four physical performance measures was associated with a reduced risk of nursing home placement, fracture, and decline in function over 1 year. IMPLICATIONS: Simple performance measures identify modifiable functional deficits and suggest targeted interventions to prolong independent mobility and aging in place in RC/AL facilities.


Assuntos
Atividades Cotidianas , Moradias Assistidas , Medição de Risco/métodos , Análise e Desempenho de Tarefas , Idoso , Idoso de 80 Anos ou mais , Feminino , Força da Mão/fisiologia , Humanos , Locomoção/fisiologia , Masculino , Estados Unidos
20.
Zhonghua Yi Shi Za Zhi ; 48(4): 212-215, 2018 Jul 28.
Artigo em Zh | MEDLINE | ID: mdl-30419714

RESUMO

During Shang Dynasty, there appeared the wine(Chinese:, Jiuji), a clarified liquid preparation extracted from crude medicine with distilled liquor.The wine had many alternative names in history.In Yuan Dynasty, the connotation of "wine" was completely same as its modern meaning. It was as a specific term of drug types during the Republic of China. In Chinese Traditional Medicine and Materia Medica Subject Headings, the "wine" became a formal subject term. In Chinese Terms in Traditional Chinese Medicine and Pharmacy, "wine" was issued as a standardized name, which considered to be consistent, scientific and concise under scientific naming rules.

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