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1.
Pediatr Int ; 64(1): e15146, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35445487

RESUMO

BACKGROUND: The WHO's Health Promoting Schools (HPS) framework is based on an understanding of the reciprocal relationship between health and education, and the need to take a holistic approach to health promotion in schools. We aim to clarify the degree to which the HPS framework is reflected in the national policies of eight target countries and the issues surrounding its successful implementation. METHODS: Date were collected through two expert workshops with participants from eight Asian countries: Cambodia, China, Japan, Korea, Lao PDR, Nepal, the Philippines, and Thailand. In the first workshop, data collected on national policy were mapped against the HPS framework. From this, key issues were identified, and follow-up data collection was conducted in each country for a second workshop. RESULTS: We identified a policy shift toward the HPS framework in six out of the eight countries. Neither Japan nor Korea had changed their national policy frameworks to reflect an HPS approach; however, in the latter, model programs had been introduced at a local level. We identified various barriers to successful implementation, especially in relation to mental health and wellbeing. CONCLUSION: Given the recent shift toward the HPS approach in six out of the eight countries in this study, there is a need to conduct research to assess the impact of this framework on the health and wellbeing of students and school staff. At the same time, we call for more dialog in the context of Japan to explore the possible benefits of introducing the HPS framework into schools.


Assuntos
Promoção da Saúde , Serviços de Saúde Escolar , Humanos , Políticas , Instituições Acadêmicas , Tailândia
2.
J Infect Chemother ; 26(8): 862-864, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32482515

RESUMO

Panton-Valentine leukocidin (PVL)-positive USA300 clone is a highly pathogenic and global epidemic community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) clone. Athletes are particularly vulnerable to CA-MRSA infection because of the frequency of skin trauma, close-contact situations, and sharing of equipment that is customary in the athletic setting. We experienced a case of Japanese collegiate football player with septic pulmonary emboli secondary to infectious iliofemoral deep venous thrombosis caused by the USA300 clone. Here, we screened the nasal carriage of USA300 clone colonization among asymptomatic teammate of the patient to elucidate the infection route. Among 69 nasal samples, CA-MRSA strains were found in 5.8% (four samples). Molecular epidemiological analyses showed that three of the CA-MRSA strains were USA300 clone. Furthermore, pulsed-field gel electrophoresis revealed that all nasal USA300 clones showed 100% identity with the USA300 clone isolated from their teammate with critical infection. Our findings indicate that nasal colonization of the PVL-positive CA-MRSA, especially USA300 clone, pose a threat among contact sport athletes in Japan likewise other countries. An immediate infection control strategy for contact sport athletes is necessary to prevent outbreaks of PVL-positive CA-MRSA infections.


Assuntos
Atletas/estatística & dados numéricos , Staphylococcus aureus Resistente à Meticilina/genética , Staphylococcus aureus Resistente à Meticilina/isolamento & purificação , Nariz/microbiologia , Infecções Estafilocócicas/epidemiologia , Antibacterianos/uso terapêutico , Infecções Assintomáticas/epidemiologia , Toxinas Bacterianas/metabolismo , Infecções Comunitárias Adquiridas/tratamento farmacológico , Infecções Comunitárias Adquiridas/epidemiologia , Infecções Comunitárias Adquiridas/microbiologia , Eletroforese em Gel de Campo Pulsado , Exotoxinas/metabolismo , Humanos , Japão/epidemiologia , Leucocidinas/metabolismo , Masculino , Epidemiologia Molecular , Futebol , Esportes , Infecções Estafilocócicas/tratamento farmacológico , Universidades , Adulto Jovem
3.
Bioorg Med Chem Lett ; 29(17): 2464-2467, 2019 09 01.
Artigo em Inglês | MEDLINE | ID: mdl-31351692

RESUMO

The development of small molecule inhibitors of PD-1/PD-L1 is eagerly anticipated for treatment of cancer. We focused on the symmetry of the ternary complex structure of reported small molecule ligands and hPD-L1 homodimers, and designed partially- or fully-symmetric compounds for more potent inhibitors. The design of the new compounds was guided by our hypothesis that the designed symmetric compound would induce a flip of sidechain of ATyr56 protein residue to form a new cavity. The designed compound 4 exhibited substantially increased binding affinity to hPD-L1, as well as PD-1/PD-L1 inhibitory activity in physiological conditions. Compound 4 also showed a dose-dependent increase in IFN-γ secretion levels in a mixed lymphocyte reaction assay. These results not only indicate the feasibility of targeting the PD-1/PD-L1 pathway with small molecules, but illustrate the applicability of the symmetry-based ligand design as an attractive methodology for targeting protein-protein interaction stabilizers.


Assuntos
Antígeno B7-H1/metabolismo , Desenho de Fármacos , Ligantes , Receptor de Morte Celular Programada 1/metabolismo , Bibliotecas de Moléculas Pequenas/química , Anticorpos/imunologia , Anticorpos/farmacologia , Antígeno B7-H1/química , Antígeno B7-H1/imunologia , Células Dendríticas/citologia , Células Dendríticas/efeitos dos fármacos , Células Dendríticas/metabolismo , Dimerização , Humanos , Interferon gama/metabolismo , Receptor de Morte Celular Programada 1/química , Ligação Proteica , Bibliotecas de Moléculas Pequenas/metabolismo , Bibliotecas de Moléculas Pequenas/farmacologia , Ressonância de Plasmônio de Superfície
4.
BMC Psychiatry ; 18(1): 274, 2018 09 03.
Artigo em Inglês | MEDLINE | ID: mdl-30176881

RESUMO

BACKGROUND: Approximately one-third of schizophrenia patients eventually develop treatment-resistant schizophrenia (TRS). Although the time course of TRS development varies from patient to patient, the details of these variations have not been clarified. The present study compared the duration of time required to achieve control of the first-episode psychosis (FEP) between patients who went on to develop TRS and those who did not, in order to determine whether a bifurcation point exists for the transition to TRS. METHODS: The present study included 271 schizophrenia patients. Based on the clinical assessment, each patient was assigned to a TRS (n = 79) or Non-TRS group (n = 182). Clinical factors relating to FEP treatment such as the duration of initial hospital admission and the degree of improvement were retrospectively identified. RESULTS: There was no significant difference in the duration of initial hospital admission (defined as the time from treatment introduction to successful discharge) between the two groups (mean of 87.9 days for TRS vs. 53.3 days for Non-TRS). The degree of improvement during initial hospital admission of the TRS group was significantly lower than that of the Non-TRS group (Global Assessment of Functioning (GAF) of 50 points for TRS vs. 61 points for Non-TRS). Approximately half of the TRS patients showed an acute onset pattern and longer hospital admission (mean 169 days) for their FEP. The other half of TRS patients needed no hospital admission, indicating an insidious onset pattern with no clear psychotic episode and treatment introduction without hospital admission. CONCLUSIONS: Future TRS patients can have difficulty in improvement during their FEP. There appear to be two distinct patterns for the development of TRS. One pattern is characterized by refractory positive symptoms and a longer period to control the first psychosis; the other shows latent or insidious onset and poor response to the initial treatment.


Assuntos
Transtornos Psicóticos/psicologia , Transtornos Psicóticos/terapia , Esquizofrenia/terapia , Psicologia do Esquizofrênico , Índice de Gravidade de Doença , Adulto , Antipsicóticos/uso terapêutico , Estudos de Coortes , Estudos Transversais , Feminino , Seguimentos , Hospitalização , Humanos , Masculino , Estudos Retrospectivos , Fatores de Risco , Prevenção Secundária/métodos
5.
Cureus ; 16(5): e60177, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38868234

RESUMO

Patients with 21trisomy often develop congenital or acquired gastrointestinal diseases, such as duodenal or anal atresia, celiac disease, intussusception, and constipation. In these patients, it is often challenging to diagnose gastrointestinal diseases because most patients have difficulty explaining their complaints in detail. Furthermore, these patients also possess immunological disorders, such as increased type I interferon activation, innate immune hypersensitivity, and polarization to autoimmune. Here, we present a girl with 21trisomy and constipation who developed severe anemia, occult blood and elevated levels of calprotectin in stool, and chronic ileum obstruction confirmed by computed tomography. The patient underwent surgical resection of the ileum and recovered without complications. Pathological examination demonstrated intussusception, ischemia, ulceration, inflammatory granulation, and massive IgG4-positive plasma cell infiltration. After the surgery, her fecal calprotectin levels were normalized. We assumed that the ileum inflammation caused by ileum dilation generated ulcers and granulation, which could be associated with immunological, gastrointestinal, and intellectual disorders in patients with 21trisomy.

6.
J Med Chem ; 67(2): 952-970, 2024 01 25.
Artigo em Inglês | MEDLINE | ID: mdl-38170624

RESUMO

A number of RORγ inhibitors have been reported over the past decade. There were also several examples advancing to human clinical trials, however, none of them has reached the market yet, suggesting that there could be common obstacles for their future development. As was expected from the general homology of nuclear receptor ligands, insufficient selectivity as well as poor physicochemical properties were identified as potential risks for a RORγ program. Based on such considerations, we conducted a SAR investigation by prioritizing drug-like properties to mitigate such potential drawbacks. After an intensive SAR exploration with strong emphasis on "drug-likeness" indices, an orally available RORγ inhibitor, JTE-151, was finally generated and was advanced to a human clinical trial. The compound was confirmed to possess highly selective profiles along with good metabolic stability, and most beneficially, no serious adverse events (SAE) and good PK profiles were observed in the human clinical trial.

7.
Psychiatry Res Neuroimaging ; 319: 111422, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34856453

RESUMO

Multiple lines of evidence indicate that antipsychotic agents could affect brain structures of schizophrenia patients. However, the effect of antipsychotic dosage or type on brain structure is uncertain. The present study retrospectively analyzed brain computed tomography (CT) images from a psychiatric hospital to examine the relationship between cumulative dose of antipsychotics and brain volume reduction in schizophrenia patients. A total of 43 patients with repeated relapse episode of psychosis were included and CT scans that were performed an average of 3.2 times per patient during nearly 13 years of follow-up were analyzed. The results revealed significant positive relationships of expansion of cerebrospinal fluid space with cumulative dosage of all antipsychotics and that of typical antipsychotics. Patients treated with antipsychotics including typical antipsychotics exhibited a greater volume reduction compared to patients treated with only atypical antipsychotics. The present study was one of the longest longitudinal studies examining the effects of antipsychotics on brain volume in schizophrenia patients. These results suggest a relation between cumulative lifetime antipsychotic dosage and progressive brain volume reduction in patients with schizophrenia. However, the effects of specific agent on brain structure are still uncertain, and more detailed analysis is needed.


Assuntos
Antipsicóticos , Esquizofrenia , Antipsicóticos/farmacologia , Encéfalo/diagnóstico por imagem , Humanos , Estudos Retrospectivos , Esquizofrenia/diagnóstico por imagem , Esquizofrenia/tratamento farmacológico , Tomografia Computadorizada por Raios X
8.
Chem Biol Drug Des ; 98(5): 914-929, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34495575

RESUMO

The development of small molecule inhibitors of programmed cell death-1/programmed cell death-ligand 1 (PD-1/PD-L1) has drawn research interest for the treatment of cancer. Recently, we reported the discovery of a novel dimeric core small molecule PD-1/PD-L1 inhibitor. In an effort to discover more potent inhibitors, we further explored the dimeric core scaffold. Our investigations of the structure-activity-relationship revealed that introduction of lipophilic substituents onto one of the di-alkoxylated phenyl rings improved binding affinities to PD-L1, and inhibitory activities of PD-1/PD-L1 in cellular assays. Furthermore, conversion of the ether linker part to an olefin linker not only improved binding affinity but also led to slow dissociation binding kinetics. We also explored more potent, as well as downsized, scaffolds. Compounds bearing a linear chain in place of one of the di-alkoxylated phenyl rings exhibited good binding affinity with improved ligand efficiency (LE). Representative compounds demonstrated potent inhibitory activities of PD-1/PD-L1 in the submicromolar range in cellular assays as well as cellular function in the mixed lymphocyte reaction (MLR) assay with efficacy comparable to anti-PD-1 antibody. Our results provide applicable information for the design of more potent inhibitors targeting PD-1/PD-L1 pathway.


Assuntos
Antineoplásicos/síntese química , Antígeno B7-H1/química , Neoplasias/tratamento farmacológico , Acetamidas/química , Apoptose , Antígeno B7-H1/metabolismo , Cristalografia por Raios X , Humanos , Ligantes , Simulação de Acoplamento Molecular , Estrutura Molecular , Ligação Proteica , Piridinas/química , Transdução de Sinais , Bibliotecas de Moléculas Pequenas/química , Relação Estrutura-Atividade , Termodinâmica
9.
JMA J ; 3(1): 78-82, 2020 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-33324780

RESUMO

Community-acquired methicillin-resistant Staphylococcus aureus (CA-MRSA) is prevalent around the world and is a causative agent of skin and soft tissue infections in healthy individuals. Particularly, Panton-Valentine leukocidin (PVL)-positive CA-MRSA strains occasionally cause life-threatening infections, such as septic pulmonary emboli (SPE) and infectious endocarditis. However, severe infections caused by PVL-positive CA-MRSA strains have rarely been reported in Japan. For the first time, this study reports the case of a 20-year-old Japanese college athlete with life-threatening PVL-positive CA-MRSA USA300 clone infection, including sepsis, SPE, and skin and soft tissue infections with iliofemoral deep venous thrombosis.

10.
Int Clin Psychopharmacol ; 35(6): 338-344, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32868522

RESUMO

Dopamine supersensitivity psychosis (DSP) in patients with schizophrenia is induced by treatment with a high dosage of antipsychotics for a long time period, and it is characterized by unstable psychotic symptoms. The upregulation of dopamine D2 receptor (DRD2) provoked by antipsychotics underlies DSP. Aripiprazole does not cause an excessive blockade of DRD2 and is less likely to upregulate DRD2 by aripiprazole's dopamine partial agonistic profile. Aripiprazole; however, has a potential risk of inducing severe rebound psychosis in patients who have already developed dopamine supersensitivity. Recently, an animal model study suggested that aripiprazole could attenuate established dopamine supersensitivity. The present study was conducted to examine whether very slowly switching to aripiprazole could help patients with schizophrenia with dopamine supersensitivity while avoiding rebound psychosis. This study was a single-armed and open-labeled study in which patients were observed over a period of 2 years. Only 11 patients were ultimately recruited. Five patients were successfully switched to a sufficient dose of aripiprazole and completed the study protocol. These five patients did not present with severe DSP over the study period, but only one patient showed a large improvement in psychopathology. Five patients dropped out of the study, and one of these five showed a severe worsening of psychosis. The present study indicated that the introduction of aripiprazole in patients with DSP was difficult, but suggested that aripiprazole could contribute to attaining a stable state in psychosis if it was applied with careful observation.


Assuntos
Antipsicóticos/efeitos adversos , Aripiprazol/uso terapêutico , Agonistas de Dopamina/uso terapêutico , Antagonistas dos Receptores de Dopamina D2/efeitos adversos , Psicoses Induzidas por Substâncias/tratamento farmacológico , Esquizofrenia/tratamento farmacológico , Adulto , Dopamina/fisiologia , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
11.
J Med Chem ; 63(13): 7163-7185, 2020 07 09.
Artigo em Inglês | MEDLINE | ID: mdl-32511913

RESUMO

Dermatologic disorders such as atopic dermatitis arise from genetic and environmental causes and are complex and multifactorial in nature. Among possible risk factors, aberrant immunological reactions are one of the leading etiologies. Immunosuppressive agents including topical steroids are common treatments for these disorders. Despite their reliability in clinical settings, topical steroids display side effects, typified by skin thinning. Accordingly, there is a need for alternate effective and well-tolerated therapies. As part of our efforts to investigate new immunomodulators, we have developed a series of JAK inhibitors, which incorporate novel three-dimensional spiro motifs and unexpectedly possess both excellent physicochemical properties and antidermatitis efficacy in the animal models. One of these compounds, JTE-052 (ent-60), also known as delgocitinib, has been shown to be effective and well-tolerated in human clinical trials and has recently been approved in Japan for the treatment of atopic dermatitis as the first drug among Janus kinase inhibitors.


Assuntos
Dermatite Atópica/tratamento farmacológico , Fármacos Dermatológicos/farmacologia , Desenho de Fármacos , Inibidores de Janus Quinases/farmacologia , Janus Quinases/antagonistas & inibidores , Pirróis/farmacologia , Fármacos Dermatológicos/uso terapêutico , Humanos , Concentração Inibidora 50 , Inibidores de Janus Quinases/uso terapêutico , Janus Quinases/química , Modelos Moleculares , Conformação Proteica , Pirróis/uso terapêutico
12.
Prog Neuropsychopharmacol Biol Psychiatry ; 33(3): 410-5, 2009 Apr 30.
Artigo em Inglês | MEDLINE | ID: mdl-19166894

RESUMO

Although to date there have been no conclusive pathophysiological findings in support of the degenerative theory of the etiology of schizophrenia, the results of neuroimaging studies have suggested that progressive changes in the brain do occur during the clinical course of schizophrenia. However, there has been no report on alterations in regional cerebral blood flow (rCBF) under resting condition, which was compared between the first-episode and the chronic patients of schizophrenia and healthy controls. Therefore, in this study, we applied three-dimensional stereotactic surface projection analysis of resting SPECT (3D-SSP SPECT) in patients with first-episode (n=18) and chronic schizophrenia (n=23) and age-/sex-matched healthy controls (n=40). The rCBFs in the middle/inferior/medial frontal gyrus and the anterior cingulate gyrus were significantly decreased in both patient groups, relative to the respective controls (Z>3.0, P<0.001, uncorrected). The chronic group showed significant hypoperfused region in the left inferior parietal lobule and middle/inferior temporal gyrus. Furthermore, within-cases comparison between the first-episode and chronic schizophrenia, revealed that the significant hypoperfused regions in the chronic group, compared to the first-episode group, were not only the lateral and medial prefrontal cortex, but also the inferior parietal cortex, posterior part of the temporal lobe, and the cuneus. The present study suggested that the reduction in rCBF occurs in the posterior brain area in addition to the frontal lobe across all clinical stages of schizophrenia.


Assuntos
Encéfalo/patologia , Circulação Cerebrovascular/fisiologia , Esquizofrenia/patologia , Esquizofrenia/fisiopatologia , Adulto , Encéfalo/diagnóstico por imagem , Mapeamento Encefálico , Estudos Transversais , Progressão da Doença , Feminino , Humanos , Imageamento Tridimensional/métodos , Masculino , Pessoa de Meia-Idade , Esquizofrenia/diagnóstico por imagem , Tomografia Computadorizada de Emissão de Fóton Único/métodos , Adulto Jovem
13.
Intern Med ; 58(9): 1361-1365, 2019 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-30626838

RESUMO

Acute infectious endocarditis (IE) is a complex disease that presents as a serious clinical condition associated with a high mortality rate, especially due to intracranial hemorrhaging (ICH). The most common causative organism is Staphylococcus aureus. We herein report a patient with ICH following subacute IE with a positive blood culture for Cardiobacterium hominis. A review of the existing literature revealed that acute IE associated with Cardiobacterium has been reported to cause ICH in only seven previous cases. Prolonged culture-specific antibiotic therapy along with extended surveillance of blood culture is therefore essential for timely intervention.


Assuntos
Cardiobacterium , Endocardite Bacteriana/complicações , Infecções por Bactérias Gram-Negativas/complicações , Hemorragias Intracranianas/microbiologia , Adulto , Antibacterianos/uso terapêutico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
14.
Psychiatry Res ; 266: 199-205, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29870957

RESUMO

Although many studies report various factors related to future employment of schizophrenia patients, few identify the treatable or improvable ones. The responses to the first year of treatment and daily antipsychotic drug doses may be the treatable and improvable factors. We surveyed 235 schizophrenia outpatients in three facilities, of whom 129 and 106 were employed and unemployed, respectively. Through face-to-face interviews and medical record reviews, we investigated symptomatic and social functioning responses to the first year of treatment using the Global Assessment of Psychopathology Scale (GAPS) and the Social and Occupational Functioning Assessment Scale (SOFAS). We investigated daily antipsychotic drug doses and other clinical assessments at the interview time. Finally, we used multivariable logistic regression analysis. SOFAS-measured improvements in the period 6 to 12 months after beginning treatment and daily antipsychotic drug doses equivalent to less than 600 mg of chlorpromazine were identified as an employment-related factor, but GAPS-measure improvements were not. Social functioning improvements in the period 6 to 12 months after beginning treatment and low-to-moderate daily antipsychotic drug doses were detected as employment-related factors, suggesting that early efforts to improve social functioning and optimize antipsychotic drug doses could lead to future employment for schizophrenia patients.


Assuntos
Antipsicóticos/uso terapêutico , Emprego/psicologia , Esquizofrenia/tratamento farmacológico , Psicologia do Esquizofrênico , Adulto , Clorpromazina/uso terapêutico , Estudos Transversais , Emprego/tendências , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pacientes Ambulatoriais/psicologia , Esquizofrenia/diagnóstico , Inquéritos e Questionários
15.
Artigo em Inglês | MEDLINE | ID: mdl-18276535

RESUMO

A highly sensitive piezoelectric ultrasonic micro-sensor with a grooved multilayer membrane was developed by a Si-based MEMS technique. The groove was located at one-quarter of the distance away from the edge of the membrane and opened into piezoelectric layer. The piezoelectric layer Pb(Zr,Ti)O(3) (PZT) was 2.2 microm thick and was prepared by a sol-gel method. The prepared PZT film was pure perovskite and showed a highly (100) textured structure. The sensitivity of the fabricated piezoelectric ultrasonic sensor without the groove structure was 100 microV/Pa. In comparison, the sensitivity of the ultrasonic sensor with the groove structure was about 500 microV/Pa, which is 5 times that without the groove structure. The diaphragm having grooves showed a corrugate-like structure that was formed by residual stress. The high sensitivity of the membrane with the grooved diaphragm is considered to relate to the corrugate-like structure.


Assuntos
Chumbo/química , Membranas Artificiais , Microeletrodos , Titânio/química , Transdutores , Ultrassonografia/instrumentação , Zircônio/química , Eletroquímica/instrumentação , Eletroquímica/métodos , Desenho de Equipamento , Análise de Falha de Equipamento , Aumento da Imagem/instrumentação , Aumento da Imagem/métodos , Teste de Materiais , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Ultrassonografia/métodos
16.
Ulus Travma Acil Cerrahi Derg ; 23(5): 433-437, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-29052833

RESUMO

The formation of external carotid artery (ECA) pseudoaneurysms caused by stab wounds is a rare vascular anomaly. Although the surgical exploration of the ECA segment is the standard treatment, endovascular treatment (EVT) can be considered if there is difficulty in identifying the source of bleeding in the injured regions that are difficult to operatively access. Here we treated a young patient who had hemorrhagic instability with hemorrhage-induced coagulopathy caused by a zone III cervical stab wound with a pseudoaneurysm from the main trunk of the ECA; the patient underwent EVT and successful hemostasis. A literature review based on the data available on PubMed was conducted, and 15 published reports of 82 penetrating ECA injuries treated by EVT were identified. We concluded that EVT appears to be an effective surgical alternative for patients with hemorrhage-induced coagulopathy caused by a ruptured ECA pseudoaneurysm after a cervical stab wound.


Assuntos
Falso Aneurisma/cirurgia , Lesões das Artérias Carótidas/cirurgia , Artéria Carótida Externa/cirurgia , Procedimentos Endovasculares , Ferimentos Perfurantes/cirurgia , Adulto , Humanos , Masculino
17.
J Med Chem ; 49(24): 6950-3, 2006 Nov 30.
Artigo em Inglês | MEDLINE | ID: mdl-17125247

RESUMO

We report a new series of hepatitis C virus NS5B RNA polymerase inhibitors containing a conformationally constrained tetracyclic scaffold. SAR studies led to the identification of 6,7-dihydro-5H-benzo[5,6][1,4]diazepino[7,1-a]indoles (19 and 20) bearing a basic pendent group with high biochemical and cellular potencies. These compounds displayed a very small shift in cellular potency when the replicon assay was performed in the presence of human serum albumin.


Assuntos
Antivirais/síntese química , Benzodiazepinas/síntese química , Hepacivirus/enzimologia , Compostos Heterocíclicos de 4 ou mais Anéis/síntese química , Indóis/síntese química , Proteínas não Estruturais Virais/antagonistas & inibidores , Antivirais/química , Antivirais/farmacologia , Benzodiazepinas/química , Benzodiazepinas/farmacologia , Cristalografia por Raios X , Hepacivirus/genética , Compostos Heterocíclicos de 4 ou mais Anéis/química , Compostos Heterocíclicos de 4 ou mais Anéis/farmacologia , Humanos , Indóis/química , Indóis/farmacologia , Modelos Moleculares , Conformação Molecular , RNA Viral/genética , Replicon , Albumina Sérica , Relação Estrutura-Atividade , Proteínas não Estruturais Virais/química
18.
Scand J Trauma Resusc Emerg Med ; 24: 13, 2016 Feb 09.
Artigo em Inglês | MEDLINE | ID: mdl-26861070

RESUMO

BACKGROUND: Haemorrhagic shock is a major cause of death in the acute care setting. Since 2009, our emergency department has used intra-aortic balloon occlusion (IABO) catheters for resuscitative endovascular balloon occlusion of the aorta (REBOA). METHODS: REBOA procedures were performed by one or two trained acute care physicians in the emergency room (ER) and intensive care unit (ICU). IABO catheters were positioned using ultrasonography. Collected data included clinical characteristics, haemorrhagic severity, blood cultures, metabolic values, blood transfusions, REBOA-related complications and mortality. RESULTS: Subjects comprised 25 patients (trauma, n = 16; non-trauma, n = 9) with a median age of 69 years and a median shock index of 1.4. REBOA was achieved in 22 patients, but failed in three elderly trauma patients. Systolic blood pressure significantly increased after REBOA (107 vs. 71 mmHg, p < 0.01). Five trauma patients (20 %) died in ER, and mortality rates within 24 h and 60 days were 20 % and 12 %, respectively. No REBOA-related complications were encountered. The total occlusion time of REBOA was significantly lesser in survivors than that in non-survivors (52 vs. 97 min, p < 0.01). Significantly positive correlations were found between total occlusion time of REBOA and shock index (Spearman's r = 0.6) and lactate concentration (Spearman's r = 0.7) in survivors. CONCLUSION: REBOA can be performed in ER and ICU with a high degree of technical success. Furthermore, correlations between occlusion time and initial high lactate levels and shock index may be important because prolonged occlusion is associated with a poorer outcome.


Assuntos
Oclusão com Balão , Serviço Hospitalar de Emergência , Procedimentos Endovasculares , Técnicas Hemostáticas , Unidades de Terapia Intensiva , Ressuscitação/métodos , Choque Hemorrágico/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Aorta , Feminino , Humanos , Japão , Masculino , Pessoa de Meia-Idade , Avaliação de Resultados em Cuidados de Saúde , Estudos Retrospectivos
19.
Schizophr Res ; 170(2-3): 252-8, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26775264

RESUMO

BACKGROUND: Although a variety of factors are known to be significantly related to poor prognosis in schizophrenia, their interactions remain unclear. Dopamine supersensitivity psychosis (DSP) is a clinical concept related to long-term pharmacotherapy and could be one of the key factors contributing to the development of treatment-resistant schizophrenia (TRS). The present study aims to explore the effect of DSP on progression to TRS. METHODS: Two-hundreds and sixty-five patients were classified into either a TRS or Non-TRS group based on retrospective survey and direct interview. The key factors related to prognosis, including the presence or absence of DSP episodes, were extracted, and each factor was compared between the two groups. RESULTS: All parameters except for the duration of untreated psychosis (DUP) were significantly worse in the TRS group compared to the Non-TRS group. In particular, the TRS group presented with a significantly higher rate of DSP episodes than the Non-TRS group. Regression analysis supported the notion that DSP plays a pivotal role in the development of TRS. In addition, deficit syndrome was suggested to be a diagnostic subcategory of TRS. CONCLUSIONS: Our data confirmed that the key predicting factors of poor prognosis which have been established would actually affect somehow the development of TRS. In addition, the occurrence of a DSP episode during pharmacotherapy was shown to promote treatment refractoriness.


Assuntos
Antipsicóticos/efeitos adversos , Dopamina/metabolismo , Psicoses Induzidas por Substâncias/diagnóstico , Psicoses Induzidas por Substâncias/metabolismo , Esquizofrenia/tratamento farmacológico , Adolescente , Adulto , Idade de Início , Idoso , Antipsicóticos/uso terapêutico , Resistência a Medicamentos , Feminino , Humanos , Entrevista Psicológica , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Prognóstico , Psicoses Induzidas por Substâncias/tratamento farmacológico , Análise de Regressão , Estudos Retrospectivos , Esquizofrenia/diagnóstico , Adulto Jovem
20.
J Psychopharmacol ; 30(8): 795-802, 2016 08.
Artigo em Inglês | MEDLINE | ID: mdl-27371496

RESUMO

UNLABELLED: Dopamine supersensitivity psychosis (DSP) resulting from antipsychotic treatment is related to treatment-resistant schizophrenia (TRS), and its treatment has not been established to date. Maintaining thoroughly stable occupancy of the dopamine D2 receptor by risperidone long-acting injectable (RLAI) is one strategy for treatment. In this study, RLAI was given as an adjunctive medication to oral antipsychotic(s), which were switched partially and gradually to RLAI in 108 treatment-resistant patients for an additional 1-year follow-up in a 2-year study, and to compare the effects in 72 patients with a DSP history (DSP group) and 36 patients without this history (NonDSP group). Although both groups showed significant improvements in the total Brief Psychotic Rating Scale (BPRS) score during the follow-up period, greater improvement was observed for the DSP group than the NonDSP group. High doses (> 850 mg chlorpromazine-dose combined of oral antipsychotics and RLAI) did not significantly change in both groups throughout the study period; however, extrapyramidal symptoms, including tardive dyskinesia, were significantly improved only in the patients with DSP. This study strongly suggested that the RLAI treatment, even with only partial switching, provides relief from refractory symptoms, particularly for patients with a history of DSP. CLINICAL TRIAL REGISTRATION: http://www.umin.ac.jp/:UMIN000008487.


Assuntos
Antipsicóticos/administração & dosagem , Dopamina/metabolismo , Risperidona/administração & dosagem , Esquizofrenia/tratamento farmacológico , Adolescente , Adulto , Idoso , Antipsicóticos/efeitos adversos , Antipsicóticos/farmacologia , Clorpromazina/administração & dosagem , Clorpromazina/efeitos adversos , Preparações de Ação Retardada , Quimioterapia Combinada , Feminino , Seguimentos , Humanos , Injeções , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Escalas de Graduação Psiquiátrica , Psicoses Induzidas por Substâncias/tratamento farmacológico , Receptores de Dopamina D2/metabolismo , Risperidona/farmacologia , Adulto Jovem
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