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1.
Artigo em Inglês | MEDLINE | ID: mdl-38230255

RESUMO

Objective: This study aims to compare the epidemiology of notifications of latent tuberculosis infection (LTBI) among Japan-born and foreign-born children in Japan between 2010 and 2020, and to assess the language used during LTBI case interviews with parents or caregivers of foreign-born children with LTBI during 2019. Methods: Our study consisted of two parts: (1) an analysis of national data from the Japan Tuberculosis Surveillance (JTBS) system on the epidemiology of LTBI among Japan-born and foreign-born children in Japan, and (2) a survey of staff at public health centres that had registered at least one foreign-born child aged ≤ 14 years with LTBI. Data were extracted from the JTBS system for all children aged ≤ 14 years who were newly notified as having LTBI between 2010 and 2020, and analysed to determine trends, characteristics and treatment outcomes. Staff at relevant public health centres completed a self-administered survey. Results: A total of 7160 Japan-born and 320 foreign-born children were notified as having LTBI between 2010 and 2020. Compared with Japan-born children, foreign-born children notified as having LTBI were more likely to be older, have their mother or sibling as their source of infection and have LTBI detected via a routine school health check. At case interviews, the use of language interpretation services was limited, even when both parents were non-Japanese. No interview was directly conducted with children themselves, not even with school-aged children. Discussion: Foreign-born children and their parents may be unfamiliar with the system of testing for TB infection and the diagnosis of LTBI in Japan in school settings. Public health centres are required to provide education to patients and their families and care that takes into account cultural and linguistic differences. However, the provision of language support during case interviews may need strengthening.


Assuntos
Tuberculose Latente , Tuberculose , Criança , Humanos , Tuberculose Latente/diagnóstico , Tuberculose Latente/epidemiologia , Japão/epidemiologia , Tuberculose/epidemiologia , Saúde Pública , Inquéritos e Questionários
2.
Int J Biol Macromol ; 131: 654-665, 2019 Jun 15.
Artigo em Inglês | MEDLINE | ID: mdl-30902719

RESUMO

For determination of the conformation of irregular sequences in glycine-rich region of the Nephila clavipes spider dragline silk, the combination of 13C selectively labeled model peptides for the typical primary structure and their 13C solid-state NMR observations is very useful (T. Asakura et al. Macromolecules. 51 (2018) 3608-3619). However, spiders produce the fiber through the stretching process in nature and therefore, it is difficult to study conformational change by stretching as mimic using the model peptides because these are generally in the powder form. In this paper, 13C selectively labeled three model peptides, (Glu)4(Ala)6GlyGly12Ala13Gly14GlnGlyGlyTyrGlyGlyLeuGlySerGlnGly25Ala26Gly27ArgGly-GlyLeuGlyGlyGlnGly35Ala36Gly37(Ala)6(Glu)4 with three underlined 13C labeled blocks and their poly(vinyl alcohol) blend films were prepared and the conformational changes of these peptides were monitored by stretching of the films using 13C solid-state NMR. In addition, the molecular dynamics simulation was done to evaluate change in the conformation of the sequence by stretching theoretically. The fractions of ß-sheet of Ala36 and Gly37 residues in glycine-rich region adjacent to the C-terminal (Ala)6 sequence increased significantly by stretching compared with those of other 13C labeled Ala and Gly residues.


Assuntos
Espectroscopia de Ressonância Magnética , Simulação de Dinâmica Molecular , Peptídeos/química , Álcool de Polivinil/química , Seda/química , Aranhas/química , Animais , Conformação Molecular
3.
Biomacromolecules ; 19(11): 4396-4410, 2018 11 12.
Artigo em Inglês | MEDLINE | ID: mdl-30281286

RESUMO

The conformational analysis of spider dragline silks is difficult because of the amorphous character of the silks. In this article, the fractions of several conformations were determined for three 47-mer peptides, (Glu)4(Ala)6GlyGly12Ala13Gly14GlnGlyGlyTyrGlyGlyLeuGlySerGlnGly25Ala26Gly27-ArgGlyGlyLeuGlyGlyGlnGly35Ala36Gly37(Ala)6(Glu)4, with three underlined 13C-labeled blocks using a 13C CP/MAS NMR method. The conformations of the 13C-labeled sites change significantly depending on the location of the labeled blocks when treated with trifluoroacetic acid, low pH, and freeze-drying. The conformations of Ala36 and Gly37 residues are strongly influenced by the specific conformation of the (Ala)6 sequence at the C-terminal side, but those of other residues, Ala13 and Gly14, and Ala 26 and Gly27, are basically not influenced by the conformations of (Ala)6. Through hydration of the ß-sheet peptide, sharp peaks with random coil could be observed depending on the position of the residue, and this result could be interpreted via the change in the Ramachandran map obtained from the molecular dynamics simulation.


Assuntos
Fibroínas/química , Proteínas de Insetos/química , Espectroscopia de Ressonância Magnética/métodos , Fragmentos de Peptídeos/química , Seda/química , Aranhas/química , Ácido Trifluoracético/química , Animais , Isótopos de Carbono , Liofilização , Concentração de Íons de Hidrogênio , Conformação Molecular , Simulação de Dinâmica Molecular
4.
Int J STD AIDS ; 29(8): 834-836, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-29361886

RESUMO

Immune reconstitution inflammatory syndrome (IRIS) in HIV-infected patients after initiating antiretroviral therapy usually involves worsening manifestations of overt infectious disease. Here, we describe a sporadic case of a late-diagnosed HIV-positive man who developed Graves' disease as the first noninfectious IRIS followed by immune thrombocytopenic purpura as the second noninfectious IRIS.


Assuntos
Infecções Oportunistas Relacionadas com a AIDS/induzido quimicamente , Terapia Antirretroviral de Alta Atividade/efeitos adversos , Linfócitos T CD4-Positivos/imunologia , Doença de Graves/imunologia , Infecções por HIV/complicações , Síndrome Inflamatória da Reconstituição Imune/induzido quimicamente , Síndrome Inflamatória da Reconstituição Imune/imunologia , Púrpura Trombocitopênica Idiopática/imunologia , Infecções Oportunistas Relacionadas com a AIDS/tratamento farmacológico , Infecções Oportunistas Relacionadas com a AIDS/imunologia , Idoso , Antirretrovirais/uso terapêutico , Contagem de Linfócito CD4 , Doença de Graves/diagnóstico , Doença de Graves/tratamento farmacológico , HIV , Infecções por HIV/tratamento farmacológico , Humanos , Síndrome Inflamatória da Reconstituição Imune/complicações , Síndrome Inflamatória da Reconstituição Imune/patologia , Hospedeiro Imunocomprometido , Masculino , Metimazol/uso terapêutico , Púrpura Trombocitopênica Idiopática/diagnóstico , Púrpura Trombocitopênica Idiopática/tratamento farmacológico , Resultado do Tratamento
5.
J Med Food ; 19(5): 435-41, 2016 May.
Artigo em Inglês | MEDLINE | ID: mdl-26829513

RESUMO

Bangle (Zingiber purpureum) is a tropical ginger that is used as a spice in Southeast Asia. Phenylbutenoid dimers isolated from Bangle have exhibited neurotrophic effects in primary cultured rat cortical neurons and PC12 cells. Furthermore, chronic treatment with phenylbutenoid dimers enhances hippocampal neurogenesis in olfactory bulbectomized mice. In this study, we investigated the effects of Bangle extract on behavior and hippocampal neurogenesis in vivo. SAMP8 mice, which are an established model for accelerated aging, with age-related learning and memory impairments, were given a Bangle-containing diet for 1 month, and subsequent behavioral tests and immunohistochemistry for Ki67, a proliferating cell marker, were performed. We found that the Bangle-containing diet improved spatial learning and memory deficits in the Morris water maze and significantly increased the numbers of Ki67-positive cells in the dentate gyrus of the SAMP8 mice. In addition, the Bangle extract exhibited a neurotrophin-like activity as indicated by the induction of neurite sprouting in PC12 cells. Our results suggest that Bangle is beneficial for the prevention of age-related progression of cognitive impairment.


Assuntos
Envelhecimento/efeitos dos fármacos , Transtornos da Memória/tratamento farmacológico , Neurogênese/efeitos dos fármacos , Neurônios/efeitos dos fármacos , Aprendizagem Espacial/efeitos dos fármacos , Zingiberaceae/química , Envelhecimento/psicologia , Animais , Giro Denteado/efeitos dos fármacos , Giro Denteado/fisiopatologia , Modelos Animais de Doenças , Humanos , Masculino , Memória/efeitos dos fármacos , Transtornos da Memória/fisiopatologia , Transtornos da Memória/psicologia , Camundongos , Camundongos Transgênicos , Neurônios/citologia , Células PC12 , Ratos
6.
Org Lett ; 13(5): 988-91, 2011 Mar 04.
Artigo em Inglês | MEDLINE | ID: mdl-21265560

RESUMO

An efficient route toward the central ABC system of jiadifenin has been developed using two key Pd-catalyzed cyclizations. A protic solvent-activated Mizoroki-Heck reaction was used to construct the C(9) quaternary carbon and the A ring. A cascading Tsuji-Trost cyclization/lactonization sequence was employed to establish the BC ring system and the C(5,6) stereochemistry.


Assuntos
Paládio/química , Sesquiterpenos/química , Sesquiterpenos/síntese química , Catálise , Ciclização , Estrutura Molecular
7.
Int J Dermatol ; 50(2): 215-20, 2011 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21244391

RESUMO

BACKGROUND: Painful feet and lower limb dysfunction are risk factors for falling. Toenail deformities are common disorders in elderly people, but the relationship between nail deformities and lower limb function remains unclear. The aims of the present study were to assess the impairment of lower limb function in patients with deformities of the great toe and to determine whether foot care treatment is beneficial in reducing the risk of falling. METHODS: Functional tests of the lower extremities were performed in 263 adults, including patients with any of hallux valgus, ingrown nail, or pachyonychia, and volunteers. Fifty-five subjects with nail disorders of the great toe received medical foot care treatment. RESULTS: The presence of ingrown nail, pachyonychia, or tenderness of the great toe was significantly correlated with impaired postural performance and reduced muscular strength as assessed by functional tests. Medical foot care markedly reduced pain levels in the great toe and improved scores on functional tests of the lower extremities. CONCLUSIONS: Toenail disorders of the great toe cause dysfunction of the lower extremities and are likely to increase the risk of falling in daily life. Foot care management of toenail disorders has the potential to improve functional abilities in daily life, particularly in elderly individuals.


Assuntos
Hallux Valgus/terapia , Unhas Encravadas/terapia , Unhas Malformadas/terapia , Dedos do Pé/anormalidades , Atividades Cotidianas , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Hallux Valgus/complicações , Hallux Valgus/patologia , Humanos , Japão , Extremidade Inferior/fisiopatologia , Masculino , Pessoa de Meia-Idade , Debilidade Muscular/etiologia , Unhas Encravadas/complicações , Unhas Encravadas/patologia , Unhas Malformadas/complicações , Unhas Malformadas/patologia , Dedos do Pé/patologia , Adulto Jovem
9.
Oncol Rep ; 14(3): 601-7, 2005 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16077962

RESUMO

The relationship between the expression level of putative drug resistance factors and sensitivity to anticancer drugs in human normal renal proximal tubule epithelial cells (RPTEC) and 3 kinds of renal cell carcinoma (RCC) cells, VMRC-RCW (RCW), OS-RC-2 (OS2), TUHR14TKB (14TKB), was examined. RPTEC exhibited high expression of P-glycoprotein (Pgp), gamma-glutamyl cysteine synthetase (gammaGCS) and cis-diamminedichloroplatinum (II) (CDDP) resistance-related gene 9 (CRR9), low expression of vacuolar ATPase (V-ATPase) and no expression of multidrug resistance-associated protein 1 (MRP1). 14TKB exhibited high expression of gammaGCS and CRR9, low expression of Pgp and V-ATPase, and no expression of MRP1. OS2 showed high expression of CRR9, low expression of Pgp, gammaGCS and MRP1, and no expression of V-ATPase. RCW exhibited high expression of Pgp, MRP1 and CRR9 and low expression of gammaGCS and V-ATPase. The level of expression of the resistance factors varied among the cells. GST activity and GST-pi expression level of each cell were correlated, and there were high levels in OS2 and RPTEC. When the cytotoxicity of anticancer drugs against each cell was measured at 96 h, the sensitivity to CDDP and Doxorubicin (DXR) in RPTEC and RCW was lower than that in the other cells. Sensitivity to DXR was enhanced by treatment with the Pgp inhibitor, Verapamil, in proportion to the Pgp expression level, and the sensitivity to CDDP was increased by the gammaGCS inhibitor, Buthionine sulfoximine, in proportion to the gammaGCS expression level (corresponding to GSH content). Although a significant increase in sensitivity to CDDP was not observed by treatment of RCC with the V-ATPase inhibitor, Bafilomycin, the sensitivity to DXR in Bafilomycin-treated cells increased about 2-fold. However, no relation between drug sensitivity and V-ATPase expression was observed. The features (such as degree of resistance) varied among the RCC cell lines manifesting many resistance factors or to the contrary, lacking or having lowered resistance factors in comparison with normal cells. Therefore, it is necessary in clinical cancer chemotherapy to determine and measure the level of expression of each resistance factor in respective tumor tissue.


Assuntos
Carcinoma de Células Renais/genética , Células Epiteliais/metabolismo , Neoplasias Renais/genética , Membro 1 da Subfamília B de Cassetes de Ligação de ATP/genética , Antineoplásicos/farmacologia , Western Blotting , Carcinoma de Células Renais/metabolismo , Carcinoma de Células Renais/patologia , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Sobrevivência Celular/efeitos dos fármacos , Células Cultivadas , Cisplatino/farmacologia , Relação Dose-Resposta a Droga , Doxorrubicina/farmacologia , Resistência a Medicamentos/genética , Células Epiteliais/citologia , Células Epiteliais/efeitos dos fármacos , Expressão Gênica/efeitos dos fármacos , Glutamato-Cisteína Ligase/genética , Glutationa/metabolismo , Glutationa Transferase/metabolismo , Humanos , Neoplasias Renais/metabolismo , Neoplasias Renais/patologia , Túbulos Renais Proximais/citologia , Proteínas de Membrana/genética , Proteínas Associadas à Resistência a Múltiplos Medicamentos/genética , Proteínas de Neoplasias/genética , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , ATPases Vacuolares Próton-Translocadoras/genética
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