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1.
Vet Res ; 55(1): 17, 2024 Feb 06.
Artigo em Inglês | MEDLINE | ID: mdl-38321502

RESUMO

Streptococcus suis is a gram-positive bacterium that causes meningitis, septicemia, endocarditis, and other disorders in pigs and humans. We obtained 42 and 50 S. suis isolates from lesions of porcine endocarditis and palatine tonsils, respectively, of clinically healthy pigs in Japan; we then determined their sequence types (STs) by multilocus sequence typing (MLST), cps genotypes, serotypes, and presence of classical major virulence-associated marker genes (mrp, epf, and sly). The 42 isolates from endocarditis lesions were assigned to a limited number of STs and clonal complexes (CCs). On the other hand, the 50 isolates from tonsils were diverse in these traits and seemingly in the degree of virulence, suggesting that tonsils can accommodate a variety of S. suis isolates. The goeBURST full algorithm using tonsil isolates obtained in this study and those retrieved from the database showed that major CCs as well as many other clusters were composed of isolates originating from different countries, and some of the STs were very similar to each other despite the difference in country of origin. These findings indicate that S. suis with not only different but also similar mutations in the genome have survived in tonsils independently across different geographical locations. Therefore, unlike the lesions of endocarditis, the tonsils of pigs seemingly accommodate various S. suis lineages. The present study suggests that S. suis acquired its diversity by natural mutations during colonization and persistence in the tonsils of pigs.


Assuntos
Endocardite , Infecções Estreptocócicas , Streptococcus suis , Doenças dos Suínos , Humanos , Suínos , Animais , Tipagem de Sequências Multilocus/veterinária , Tonsila Palatina/microbiologia , Streptococcus suis/genética , Infecções Estreptocócicas/microbiologia , Infecções Estreptocócicas/veterinária , Doenças dos Suínos/microbiologia , Endocardite/veterinária
2.
HLA ; 103(1): e15215, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37697931

RESUMO

Global surveillance has been conducted to elucidate the pathogenesis of acute hepatitis of unknown origin (AHUO), However, the factors associated with the aggravation of this serious disease are unclear. Therefore, we conducted a HLA association study to identify HLA alleles or haplotypes predisposing or protective against Japanese AHUO. The HLA 5 locus (HLA-A, HLA-B, C, DRB1, and DQB1) 4-digit genotyping results of 72 AHUO patients who underwent liver transplantation at our institution between 2000 and 2021 were compared to those of 873 healthy Japanese controls. Protective associations of HLA-B*52:01 (p-corrected (pc) = 3.15 × 10-3 ), HLA-C*12:02 (pc = 1.66 ×10-3 ), HLA-DQB1*06:01 (pc = 1.42 × 10-2 ), and HLA-DRB1*15:02 (pc = 1.36 × 10-2 ) with severe AHUO in Japanese patients were observed. The amino acid residues of tryptophan at position 156, which are located in the antigen-binding grooves of the HLA-C protein, showed a protective association with AHUO, showing a significant difference from other amino acid variations (pc = 9.0 × 10-4 ). Furthermore, 5 amino acid residues of the HLA-DQB1 protein were also protectively associated with AHUO with a significant difference from other amino acid variations (pc = 1.42 × 10-2 to 2.89 × 10-2 ). These alleles have a protective association with the aggravation of AHUO in the Japanese population.


Assuntos
Antígenos HLA-C , Hepatite , Humanos , Antígenos HLA-C/genética , Predisposição Genética para Doença , Japão , Alelos , Cadeias beta de HLA-DQ/genética , Haplótipos , Doença Aguda , Cadeias HLA-DRB1/genética , Aminoácidos , Frequência do Gene
3.
Pediatr Transplant ; 28(1): e14659, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38012111

RESUMO

BACKGROUND: POLG is one of several nuclear genes associated with mitochondrial DNA maintenance defects and is a group of diseases caused by mitochondrial DNA deficiency that results in impaired adenosine triphosphate production and organ dysfunction. Myocerebrohepatopathy spectrum (MCHS) is the most severe and earliest presentation of POLG mutations, and liver transplantation (LT) for MCHS has never been reported. CASE PRESENTATION: The patient was a 3-month-old boy with acute liver failure and no neurological manifestations (e.g., seizures). We performed a living donor LT using a left lateral segment graft from his father. The postoperative course was uneventful. Subsequently, a homozygous POLG mutation (c.2890C>T, p. R964C) was identified by multigene analysis of neonatal/infantile intrahepatic cholestasis. Moreover, respiratory chain complex I, II, and III enzyme activities and the ratio of mtDNA to nuclear DNA in the liver were reduced. Therefore, we considered that these clinical manifestations and examination findings met the definition for MCHS. During meticulous follow-up, the patient had shown satisfactory physical growth and mental development until the time of writing this report. CONCLUSION: We presumed that the absence of remarkable neurologic manifestations prior to LT in patients with MCHS is a good indication for LT and contributes to a better prognosis in the present case.


Assuntos
Falência Hepática Aguda , Transplante de Fígado , Masculino , Humanos , Recém-Nascido , Lactente , DNA Polimerase Dirigida por DNA/genética , DNA Polimerase gama/genética , Doadores Vivos , Mutação , DNA Mitocondrial/genética
4.
Transplant Direct ; 9(11): e1551, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37876916

RESUMO

Background: In some pediatric patients undergoing living-donor liver transplantation, segment IV without the middle hepatic vein can be added to a left lateral segment graft to obtain larger graft volume. Because no clear consensus on this technique exists, this study investigated the effects of congested areas on postoperative outcomes in pediatric patients with biliary atresia undergoing living-donor liver transplantation. Methods: We retrospectively reviewed data of recipients with biliary atresia aged ≤15 y who had undergone living-donor liver transplantation at Kyoto University Hospital between 2006 and 2021 and with graft-to-recipient weight ratios (GRWR) of ≤2%. Based on the percentage of congested area in the graft, patients were classified into the noncongestion (n = 40; ≤10%) and congestion (n = 13; >10%) groups. To compare the differences between groups with similar nooncongestive GRWRs and investigate the effect of adding congested areas, patients in the noncongestion group with GRWRs of ≤1.5% were categorized into the small noncongestion group (n = 24). Results: GRWRs and backgrounds were similar between the noncongestion and congestion groups; however, patients in the congestion group demonstrated significantly longer prothrombin times, higher ascites volumes, and longer hospitalization. Further, compared with the small noncongestion group, the congestion group had significantly greater GRWR and similar noncongestive GRWR; however, the congestion group had significantly longer prothrombin time recovery (P = 0.020, postoperative d 14), higher volume of ascites (P < 0.05, consistently), and longer hospitalization (P = 0.045), requiring significantly higher albumin and gamma-globulin transfusion volumes than the small noncongestion group (P = 0.027 and P = 0.0083, respectively). Reoperation for wound dehiscence was significantly more frequent in the congestion group (P = 0.048). Conclusions: In pediatric liver-transplant recipients, adding a congested segment IV to the left lateral segment to obtain larger graft volume may negatively impact short-term postoperative outcomes.

5.
IDCases ; 32: e01765, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37122594

RESUMO

Background: Kluyvera intermedia is a bacterium indigenous to humans. But Kluyvera intermedia bacteremia has been not reported thus far. We report a case of Kluyvera intermedia bacteremia with septic shock due to left obstructive pyelonephritis as a result of urolithiasis. Case presentation: A 66-year-old woman with septic shock due to left obstructive pyelonephritis was transferred to our hospital. Tazobactam/Piperacillin 4.5 g was administered every 8 h for 5 days. The patient's condition improved, and she was transferred back to the previous hospital. Kluyvera intermedia was obtained by blood cultures. The patient was successfully treated with a two-week course of antibiotics. Conclusions: We describe the first case of bacteremia with septic shock caused by Kluyvera intermedia. Kluyvera intermedia can be a causative pathogen of septic shock. Since this bacterium has not been reported in the past, we expect further reports and the accumulation of cases in the future.

6.
Transplant Proc ; 55(3): 530-532, 2023 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-36572611

RESUMO

In post-liver transplant recipients, SARS-CoV-2 infection is a health threat, and novel messenger RNA vaccines such as Pfizer BioNTech BNT162b2 and Moderna mRNA-1273 are aggressively recommended. However, there are few reports on their adverse effects, some of which may be potentially fatal. We have experienced 2 post-liver transplant recipients with exacerbated chronic rejection after vaccination, one of whom had to undergo retransplant and the other who is still in the process of liver function without improvement. These alarming cases will be presented as case reports.


Assuntos
Vacinas contra COVID-19 , COVID-19 , Rejeição de Enxerto , Transplantados , Humanos , COVID-19/prevenção & controle , SARS-CoV-2 , Vacinação/efeitos adversos , Transplante de Fígado , Rejeição de Enxerto/etiologia , Vacinas contra COVID-19/efeitos adversos
7.
J Clin Med ; 11(16)2022 Aug 18.
Artigo em Inglês | MEDLINE | ID: mdl-36013073

RESUMO

Antibody-mediated rejection (AMR) of liver allograft transplantation was considered as anecdotal for many decades. However recently, AMR has gained clinical awareness as a potential cause of chronic liver injury, leading to liver allograft fibrosis and eventual graft failure. (1) Methods: Literature on chronic AMR (cAMR) in pediatric post-liver transplant patients was reviewed for epidemiologic data, physiopathology, diagnosis, and treatment approaches. (2) Results: Accurate incidence of cAMR in pediatric liver transplantation remains unknown. Diagnostic criteria of cAMR were suggested by the Banff Working Group in 2016 and are based on standardized histopathological findings, C4d staining pattern, associated with the presence of donor-specific antibodies (DSA). Physio-pathological mechanisms are not clear for the technically difficult-to-obtain animal models reproducing cAMR. Treatment protocols are not established, being limited to case reports and case series, based on experience in ABO incompatible transplantation and kidney transplantation. Immunosuppression compliance with adequate dose adjustment may prevent cAMR. Conversion of Cyclosporine to Tacrolimus may improve pathological findings if treated in early phase. The association of steroids, Mycophenolate Mofetil (MMF) and mTOR inhibitors have shown some synergistic effects. Second-line treatments such as intravenous immunoglobulin (IVIG) and plasma exchange may decrease antibody titers based on ABO incompatible transplant protocols. The use of anti-CD20 (Rituximab) and proteasome inhibitors (Bortezomib) is controversial due to the lack of qualified studies. Therefore, multicenter randomized trials are needed to establish the best therapeutic strategy. In refractory cases, re-transplantation is the only treatment for allograft failure. (3) Conclusions: This literature review collects recent clinical, histopathological, and therapeutical advances of cAMR in liver allograft transplantation of pediatric patients. There are many physio-pathological aspects of cAMR to be clarified. Further efforts with multicenter prospective protocols to manage patients with cAMR are needed to improve its outcome.

8.
Geriatr Gerontol Int ; 18(7): 1114-1124, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29603568

RESUMO

AIM: With aging, it is important to maintain older community dwellers' regular engagement with familiar community activities (CA) engaged in close to home to protect them from frailty. Thus, the present study aimed to examine whether CA items or CA score were associated with mortality or the need for care under the new long-term care insurance service requirements over 3 years among community-dwelling older Japanese adults. METHODS: We analyzed cohort data for older adults from a prospective cohort study in Kami town, Japan. The response rate to the self-reported questionnaire was 94.3% (n = 5094), and we followed these participants for 3 years. Our final sample comprised 5076 older adults. Missing data were filled in using multiple imputation. We used seven items to assess CA: (i) volunteer activity; (ii) regional activity related to the neighborhood; (iii) visiting friends; (iv) hobbies or favorite lessons; (v) earning an income; (vi) farm work and growing vegetables; and (vii) shopping daily by oneself. The Kihon Checklist and new long-term care insurance service certifications were used as the frailty screening and disability indices, respectively. RESULTS: During the follow-up survey, 705 participants obtained new long-term care insurance service certifications and 262 died. Using the receiver operating characteristic curve, the desirable cut-off of the CA score to predict disability and mortality was at least two items for all elderly age groups in rural areas. CONCLUSIONS: CA items and CA score could predict disability and mortality in community-dwelling older adults in Japanese rural areas. Therefore, it is recommended that older adults from all age groups participate in CA. Geriatr Gerontol Int 2018; 18: 1114-1124.


Assuntos
Causas de Morte , Avaliação da Deficiência , Fragilidade/mortalidade , Participação Social/psicologia , Inquéritos e Questionários , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Feminino , Idoso Fragilizado/estatística & dados numéricos , Avaliação Geriátrica/métodos , Humanos , Vida Independente , Japão , Estimativa de Kaplan-Meier , Masculino , Modelos de Riscos Proporcionais , Estudos Prospectivos , Fatores Sexuais , Análise de Sobrevida
9.
Geriatr Gerontol Int ; 18(2): 338-351, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28880484

RESUMO

AIM: Despite Japan being a developed nation, half of its older population does not attend regular health checkups. The aim of the present study was to examine the individual health beliefs and personal recommendations that strongly influence health checkup attendance among community-dwelling older adults. METHODS: In 2013, questionnaires were sent to 5401 community-dwelling older adults who were not receiving long-term institutionalized care. The response rate was 94.3%. We analyzed response data from 4984 older adults using multiple imputation to manage missing data. Participation in health checkups was defined as having undergone at least one checkup in the past 3 years, and non-participation as having attended no checkups in this period. RESULTS: The participants' mean age was 75.8 years, and 57.9% were women. The adjusted odds ratio of health checkup participation ranged from 1.35 (95% confidence interval [CI] 1.13-1.61) to 1.62 (95% CI 1.34-1.95) for positive individual health beliefs about health checkups, and was 2.21 (95% CI: 1.51-3.24) and 1.28 (95% CI: 1.17-2.08) for recommendations to participate from family and neighbors, respectively. All odds ratios were adjusted for age, sex, driving by oneself to daily shopping or clinic, paid work, method of response, internal medical therapy, polypharmacy, serious disease, periodic blood test, frailty and neighborly relationships. CONCLUSIONS: The present findings suggest that both individual and community approaches might be effective in promoting participation in health checkups among community-dwelling older adults. Geriatr Gerontol Int 2018; 18: 338-351.


Assuntos
Atitude Frente a Saúde , Exame Físico/psicologia , Idoso , Feminino , Pesquisas sobre Atenção à Saúde , Humanos , Vida Independente , Japão , Masculino , Exame Físico/estatística & dados numéricos
10.
Neurosci Res ; 123: 27-35, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28450152

RESUMO

The open field test is one of the most popular ethological tests to assess anxiety-like behavior in rodents. In the present study, we examined the effect of early deprivation (ED), a model of early life stress, on anxiety-like behavior in rats. In ED animals, we failed to find significant changes in the time spent in the center or thigmotaxis area of the open field, the common indexes of anxiety-like behavior. However, we found a significant increase in high-leaning behavior in which animals lean against the wall standing on their hindlimbs while touching the wall with their forepaws at a high position. The high-leaning behavior was decreased by treatment with an anxiolytic, diazepam, and it was increased under intense illumination as observed in the center activity. In addition, we compared the high-leaning behavior and center activity under various illumination intensities and found that the high-leaning behavior is more sensitive to illumination intensity than the center activity in the particular illumination range. These results suggest that the high-leaning behavior is a novel anxiety-like behavior in the open field test that can complement the center activity to assess the anxiety state of rats.


Assuntos
Ansiedade/etiologia , Comportamento Exploratório/fisiologia , Aprendizagem/fisiologia , Estresse Psicológico/complicações , Animais , Ansiolíticos/uso terapêutico , Ansiedade/tratamento farmacológico , Diazepam/uso terapêutico , Modelos Animais de Doenças , Comportamento Exploratório/efeitos dos fármacos , Feminino , Masculino , Atividade Motora/fisiologia , Distribuição Aleatória , Ratos , Ratos Sprague-Dawley , Estatísticas não Paramétricas
11.
J Am Med Dir Assoc ; 18(6): 550.e1-550.e6, 2017 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-28411092

RESUMO

OBJECTIVE: It is clear that each trend of kyphosis with increased age and the ability to eat firm foods with the back teeth (chewing ability) has a strong influence on both the physical and mental condition of older people. Thus, this study aimed to examine whether the combination of kyphosis and chewing disorders was associated with mortality or the need for care under the new long-term care insurance (LTCI) service requirement, over 3 years in community-dwelling older Japanese adults. DESIGN: A prospective cohort study. SETTING AND PARTICIPANTS: We analyzed the cohort data for older adults (65 years or older) from a prospective study in Kami town. The response rate was 94.3%, and we followed 5094 older individuals for 3 years. Thus, we analyzed 5083 older adults using multiple imputation to manage missing data. OUTCOME: The outcomes were mortality or new certifications for LTCI services in a 3-year period. MEASUREMENTS: We developed 3 groups by asking 2 self-reported questions on both "no kyphosis" and "good chewing ability." The groups were no kyphosis and good chewing ability (GG), kyphosis and poor chewing ability (BB), and kyphosis and good chewing ability or no kyphosis and poor chewing ability (GB/BG). RESULTS: The prevalence of BB, BG/GB, and GG were 8.9%, 40.3%, and 50.8%, respectively, in our survey. During the 3-year follow-up period, 5.2% (n = 262) died and 13.9% (n = 708) individuals were newly certified as needing LTCI services. As determined by multivariate analyses, BG/GB older adults (adjusted hazard ratio: 1.3 [95% CI 1.1-1.6]) and BB older adults (adjusted hazard ratio: 2.0 [95% CI 1.5-2.4]) had a significantly higher risk of needing LTCI services than GG older adults. Similarly, BG/GB older adults (adjusted hazard ratio: 1.5 [95% CI 1.1-2.0]) and BB older adults (adjusted hazard ratio: 2.3 [95% CI 1.5-3.3]) had a significantly higher risk of mortality than GG older adults did. CONCLUSION: The presence of kyphosis or poor chewing ability was related to mortality and new certifications for LTCI services, and we found an additive effect of these 2 factors related to frailty.


Assuntos
Morte , Vida Independente , Cifose , Mastigação , Idoso , Feminino , Previsões , Humanos , Seguro de Assistência de Longo Prazo , Masculino , Saúde Bucal , Prevalência , Estudos Prospectivos , Autoavaliação (Psicologia)
12.
Zoolog Sci ; 34(2): 151-160, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28397606

RESUMO

The eclosion gate in insect development is controlled by the circadian clock and hormonal cascade. To study mechanisms underlying the eclosion gate, we examined eclosion-timing signals from the circadian clock, and the role of 20-hydroxyecdysone in the eclosion gate of the flesh fly, Sarcophaga crassipalpis. Phase responses of the eclosion rhythm were examined by applying a low-temperature pulse in the day prior to the first eclosion peak. A low-temperature pulse applied about 5.4 h before eclosion advanced an eclosion peak by 0.9 h. This indicates that an interval from the Zeitgeber (external environmental cues) input to the behavioral output by the circadian clock is 4.5 h. Signals released by the circadian clock in the last 4.5 h before eclosion could change eclosion time. In the prothoracic gland, daily changes in immunoreactivity against a circadian clock protein PERIOD were observed in the last two days before eclosion. Hemolymph titers of 20-hydroxyecdysone were very low in the last two days of the pupal period. 20-hydroxyecdysone injections caused a delay, not an advancement, in eclosion time in a time dependent manner: pharate adults were sensitive to 20-hydroxyecdysone about 20 and 16 h before eclosion, whereas no significant effects were observed about 12 and 8 h before eclosion. These results suggest that 20-hydroxyecdysone is not a timing signal submitted by the circadian clock but an indicator to suppress premature eclosion. The circadian clock in the prothoracic gland presumably sends a signal distinct from ecdysteroids from several hours before eclosion to time the onset of eclosion.


Assuntos
Relógios Circadianos/fisiologia , Regulação da Expressão Gênica no Desenvolvimento/efeitos dos fármacos , Estágios do Ciclo de Vida/fisiologia , Sarcofagídeos/fisiologia , Animais , Ecdisteroides/farmacologia , Estágios do Ciclo de Vida/efeitos dos fármacos , Pupa/efeitos dos fármacos , Pupa/fisiologia
13.
Arch Gerontol Geriatr ; 70: 54-61, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28068553

RESUMO

AIM: This study aimed to examine the relationship of participating in community activities (CA) with cognitive impairment and depressive mood independent of mobility disorder (MD) among older Japanese people. METHODS: Elderly residents in institutions or those requiring long-term care insurance services were excluded; questionnaires were mailed to 5401 older adults in 2013. The response rate was 94.3% (n=5094). We used multiple imputation to manage missing data. The questionnaire addressed physical fitness, memory, mood, and CA. Participants were divided into two groups (good and bad) based on the median scores for physical fitness, memory, and mood. We identified items related to periodically performed CA, cognitive impairment, and depressive mood, and examined correlations between scores on these sets of items. RESULTS: The mean age was 75.9 years; 58.4% of participants were women. The following CA significantly predicted reduced cognitive impairment and depressive mood independent of MD: volunteer activity, community activity, visiting friends at home, pursuing hobbies, paid work, farm work, and daily shopping. These results were corrected for age, sex, and response method (mail or home-visit). Higher CA scores were associated with lower cognitive impairment and lower depressive mood independent of MD. CONCLUSIONS: CA is negatively associated with cognitive impairment and depressive mood among community-dwelling elderly independent of MD; promoting CA may protect against cognitive impairment and depressive mood in this population. However, MD, cognitive impairment, and depressive mood may lead to reduced CA.


Assuntos
Transtornos Cognitivos/epidemiologia , Depressão/epidemiologia , Participação Social , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Japão/epidemiologia , Masculino
14.
Osaka City Med J ; 62(2): 1-9, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-30550705

RESUMO

Background To effectively detect surgical patients carrying methicillin-resistant Staphylococcus aureus (MRSA) in a pediatric ward, we investigated who should be tested through bacteriological surveillance on admission. Methods In 1124 patients, bacteriological examination of throat swabs and stool samples was performed within 48 hours after admission. The relations between carrier rate (CR) of MRSA and a history of hospitalization, neurological disorder (ND), and age group were retrospectively investigated. Results The CR of all patients was 7.8%. The CRs of the patients with no history of hospitalization, a history of hospitalization before the previous year, and a history of hospitalization within the past year (HWPY) were 2.3%, 3.4%, and 14.5%, respectively; the CR of those with HWPY was significantly higher than the CRs of the other 2 groups (p<0.0001). The CR of the patients with an ND (19.2%) was significantly higher than that of the patients without an ND (6.1%) (p<0.0001). The CRs of the patients <3 (11.7%) and 15 (11.9%) years old were higher than that of other patients (3.8%) (p< 0.05). With multivariate logistic regression analysis, HWPY, an ND and age groups <3 and k15 were independent risk factors. Conclusions - HWPY, an ND, and being <3 or k 15 years old were found to be risk fqctors for carrying MRSA on admission. Active bacteriological surveillance on admission should be performed for patients with these risk factors.


Assuntos
Staphylococcus aureus Resistente à Meticilina/isolamento & purificação , Vigilância de Evento Sentinela , Adolescente , Criança , Criança Hospitalizada , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Japão , Masculino , Estudos Retrospectivos , Fatores de Risco
15.
Geriatr Gerontol Int ; 16(2): 266-71, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25690528

RESUMO

AIM: Quality of sleep (QOS) has been shown to have an affect on mental and physical well-being, and quality of life. However, few studies have investigated how sleep affects mobility in older adults. The aim of the present study was to examine the relationship between QOS and mobility disorder (MD) in community-dwelling older adults. METHODS: Data collected through self-administered questionnaires was analyzed for 4564 Japanese older adults. Sleep outcomes included two self-reported questions regarding QOS. Logistic regression analysis was used to analyze the association between sleep and MD both by the QOS questions independently and grouped together by the two QOS questions into three groups: often sleeps well and good awakening (GG), does not often sleep well and bad awakening (BB) and a group with one of each (GB/BG). RESULTS: After adjustment for age, sex and depression, both those who did not often sleep well and those with poor awakening were more likely to show MD (OR 1.45, 95% CI 1.29-1.75), (OR 1.77, 95% CI 1.50-2.08), respectively. When grouped by both questions, those in the BB group had the least favorable outcome with increased odds ratio for possessing a MD (OR 1.95, 95% CI 1.61-2.37), compared with GB group (OR 1.40, 95% CI 1.18-1.67). CONCLUSIONS: Often sleeping well and good morning awakening were both associated with MD, suggesting that self reported QOS is associated with MD. Further research is required to investigate whether improving sleep quality could be a possible means of preventing and reversing MD in older adults.


Assuntos
Atividades Cotidianas , Qualidade de Vida , Autorrelato , Sono , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Feminino , Humanos , Masculino
16.
Nat Commun ; 4: 1834, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23673619

RESUMO

Cell polarity is regulated by evolutionarily conserved polarity factors whose precise higher-order organization at the cell cortex is largely unknown. Here we image frontally the cortex of live fission yeast cells using time-lapse and super-resolution microscopy. Interestingly, we find that polarity factors are organized in discrete cortical clusters resolvable to ~50-100 nm in size, which can form and become cortically enriched by oligomerization. We show that forced co-localization of the polarity factors Tea1 and Tea3 results in polarity defects, suggesting that the maintenance of both factors in distinct clusters is required for polarity. However, during mitosis, their co-localization increases, and Tea3 helps to retain the cortical localization of the Tea1 growth landmark in preparation for growth reactivation following mitosis. Thus, regulated spatial segregation of polarity factor clusters provides a means to spatio-temporally control cell polarity at the cell cortex. We observe similar clusters in Saccharomyces cerevisiae and Caenorhabditis elegans cells, indicating this could be a universal regulatory feature.


Assuntos
Polaridade Celular , Proteínas de Schizosaccharomyces pombe/metabolismo , Schizosaccharomyces/citologia , Schizosaccharomyces/metabolismo , Animais , Caenorhabditis elegans/citologia , Caenorhabditis elegans/metabolismo , Proteínas de Caenorhabditis elegans/metabolismo , Análise por Conglomerados , Estrutura Quaternária de Proteína , Saccharomyces cerevisiae/citologia , Saccharomyces cerevisiae/metabolismo , Proteínas de Saccharomyces cerevisiae/metabolismo , Proteínas de Schizosaccharomyces pombe/química
17.
In Vivo ; 26(6): 993-9, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23160683

RESUMO

BACKGROUND: In the current study, we isolated four known compounds, two phenanthrenes, 2,5-dihydroxy-4,9-dimethoxy phenanthrene [1] and 4-methoxyphenanthrene-2,7-diol (flavanthrinin) [2], one phenanthrenequinone, 5-hydroxy-2,3-dimethoxy-1,4-phenanthrenequinone [3], and one flavone, 3,5,7-trihydroxyflavone (galangin) [4], from the ethyl acetate (EtOAc) extract of Odontoglossum Harvengtense 'Tutu' through bioassay-guided fractionation, and investigated their biological activities. MATERIALS AND METHODS: The isolated compounds were identified with spectroscopic analysis and through comparison to literature values. Cytotoxic activity towards human tumor and normal cells was determined by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method. Nitric oxide (NO) was determined by the Griess method. Radical scavenging activity was determined by electron spin resonance (ESR) spectroscopy. Osteoclastogenesis was monitored by tartrate-resistant acid phosphatase (TRAP) activity. RESULTS: The compounds had slightly higher cytotoxicity towards human oral squamous cell carcinoma and leukemia cell lines as compared with human normal oral cells, yielding a tumor specificity value of 1.1-2.7. Among these four compounds, 1 most potently inhibited the lipopolysaccharide (LPS)-stimulated NO production and the receptor activator of nuclear factor-κB ligand (RANKL)-stimulated osteoclastogenesis by mouse macrophage-like RAW264.7 cells. Micromolar concentrations of 1 scavenged the NO radical produced from 1-hydroxy-2-oxo-3-(N-3-methyl-3-aminopropyl)-3-methyl-1-triazene. CONCLUSION: The present study demonstrated, for the first time, that 1 inhibited both macrophage activation and osteoclast differentiation, suggesting its possible anti-inflammatory action.


Assuntos
Diferenciação Celular/efeitos dos fármacos , Magnoliopsida/química , Osteoclastos/efeitos dos fármacos , Extratos Vegetais/farmacologia , Fosfatase Ácida/análise , Animais , Sobrevivência Celular/efeitos dos fármacos , Espectroscopia de Ressonância de Spin Eletrônica , Sequestradores de Radicais Livres/análise , Sequestradores de Radicais Livres/química , Células HL-60 , Humanos , Isoenzimas/análise , Ativação de Macrófagos/efeitos dos fármacos , Macrófagos/citologia , Macrófagos/metabolismo , Camundongos , Óxido Nítrico/análise , Osteoclastos/citologia , Osteoclastos/metabolismo , Extratos Vegetais/química , Fosfatase Ácida Resistente a Tartarato
18.
J Occup Health ; 54(3): 215-22, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22790524

RESUMO

OBJECTIVES: The prevalence of metabolic syndrome (MS) has been remarkably increasing worldwide. However, few studies have examined the effect of lifestyle intervention among subjects with MS. We investigated the effect of a six-month lifestyle modification program on the prevalence of MS and its associated biomarkers among Japanese men with MS. METHODS: Subjects were randomly assigned to either the intervention (n=53) or control (n=54) group. Subjects in the intervention group received a lifestyle modification program focused on exercise and diet behavior from a trained occupational health nurse at the baseline and at one and three months. The effect of intervention was assessed by differences in changes in the prevalence of MS, its components and associated biomarkers between the two groups. RESULTS: Of the 107 participants, 102 completed the survey at the end of six months (intervention group, n=49; control group, n=53). During the study period, the prevalence of MS decreased to 65.3% and 62.3% in the intervention group and control group, respectively. However, the difference between the two groups was not statistically significant (p=0.75). A significant reduction in body weight, waist circumference and glycated hemoglobin was observed in the intervention group compared with the control group. In the intervention group, time spent on physical activity was increased by nearly one hour per week, and the intakes of cereals and sugar and sweeteners were significantly decreased. CONCLUSIONS: Although the tailor-made lifestyle modification program among men with MS did not provide an additional benefit in decreasing the prevalence of MS, it may help weight control and improve glucose metabolism.


Assuntos
Terapia por Exercício , Comportamento Alimentar , Estilo de Vida/etnologia , Síndrome Metabólica/etnologia , Síndrome Metabólica/prevenção & controle , Adulto , Idoso , Povo Asiático , Humanos , Japão/epidemiologia , Masculino , Síndrome Metabólica/dietoterapia , Pessoa de Meia-Idade
19.
Surg Endosc ; 25(5): 1531-4, 2011 May.
Artigo em Inglês | MEDLINE | ID: mdl-20976481

RESUMO

BACKGROUND: This report describes the first use of single-incision, two-port access for single-incision laparoscopic percutaneous extraperitoneal closure (SILPEC) to manage inguinal hernia in children. METHODS: Between December 2009 and April 2010, 92 SILPECs of inguinal hernia and hydrocele were performed for 62 patients at Osaka City University Graduate School of Medicine. The SILPEC technique was performed using two ports (a 4.2-mm port placed using the open technique and an additional 4.2-mm port) inserted through the same periumbilical skin incision with different entrances through the abdominal wall. A 19-gauge LPEC needle (a special instrument with a wire loop at the tip to hold the material for circuit suturing around the internal inguinal ring) was used to close the orifice of the hernial sac extraperitoneally with circuit suturing around the internal inguinal ring. Data regarding patient demographics, type of hernia, operating time, complications, postoperative hospital stay, and recurrence were prospectively collected. RESULTS: The mean operative time was 26.9 min. The estimated blood loss was almost nil, and no intraoperative complications occurred. CONCLUSION: The use of SILPEC for inguinal hernia and hydrocele in children appears to be safe, effective, and reliable.


Assuntos
Hérnia Inguinal/cirurgia , Laparoscopia/métodos , Técnicas de Fechamento de Ferimentos , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Hidrocele Testicular/cirurgia
20.
Plant Physiol ; 154(1): 222-32, 2010 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-20584941

RESUMO

Restriction of long-distance movement of several potyviruses in Arabidopsis (Arabidopsis thaliana) is controlled by at least three dominant restricted TEV movement (RTM) genes, named RTM1, RTM2, and RTM3. RTM1 encodes a protein belonging to the jacalin family, and RTM2 encodes a protein that has similarities to small heat shock proteins. In this article, we describe the positional cloning of RTM3, which encodes a protein belonging to an undescribed protein family of 29 members that has a meprin and TRAF homology (MATH) domain in its amino-terminal region and a coiled-coil domain at its carboxy-terminal end. Involvement in the RTM resistance system is the first biological function experimentally identified for a member of this new gene family in plants. Our analyses showed that the coiled-coil domain is not only highly conserved between RTM3-homologous MATH-containing proteins but also in proteins lacking a MATH domain. The cluster organization of the RTM3 homologs in the Arabidopsis genome suggests the role of duplication events in shaping the evolutionary history of this gene family, including the possibility of deletion or duplication of one or the other domain. Protein-protein interaction experiments revealed RTM3 self-interaction as well as an RTM1-RTM3 interaction. However, no interaction has been detected involving RTM2 or the potyviral coat protein previously shown to be the determinant necessary to overcome the RTM resistance. Taken together, these observations strongly suggest the RTM proteins might form a multiprotein complex in the resistance mechanism to block the long-distance movement of potyviruses.


Assuntos
Proteínas de Arabidopsis/genética , Proteínas de Arabidopsis/metabolismo , Genes de Plantas/genética , Família Multigênica/genética , Potyvirus/metabolismo , Tiopronina/metabolismo , Peptídeos e Proteínas Associados a Receptores de Fatores de Necrose Tumoral/química , Sequência de Aminoácidos , Arabidopsis/genética , Arabidopsis/virologia , Proteínas de Arabidopsis/química , Transporte Biológico , Proteínas do Capsídeo/metabolismo , Genótipo , Dados de Sequência Molecular , Lectinas de Plantas/metabolismo , Ligação Proteica , Estrutura Secundária de Proteína , Estrutura Terciária de Proteína , Homologia de Sequência de Aminoácidos , Técnicas do Sistema de Duplo-Híbrido
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