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1.
Cancer Sci ; 115(3): 752-762, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38254257

RESUMO

Immune checkpoint inhibitor discovery represents a turning point in cancer treatment. However, the response rates of solid tumors remain ~10%-30%; consequently, prognostic and immune-related adverse event (irAE) predictors are being explored. The programmed cell death protein 1 (PD-1) receptor occupancy (RO) of PD-1 inhibitors depends on the number of peripheral blood lymphocytes and their PD-1 expression levels, suggesting that the RO may be related to efficacy and adverse events. As PD-1 inhibition affects each T-cell subset differently, the RO of each cell population must be characterized. However, relevant data have not been reported, and the prognostic relevance of this parameter is not known. In this study, we aimed to clarify the association between the nivolumab RO in each T-cell population and patient prognosis and reveal the development of irAEs in nivolumab-treated patients. Thirty-two patients were included in the study, and the mean follow-up period was 364 days. The nivolumab RO on effector regulatory T cells (eTregs) was significantly lower in the group that presented clinical benefits, and a significant negative association was observed between PD-1 occupancy on eTregs and all-cause mortality. The results suggest that the nivolumab RO on eTregs may be a prognostic factor in PD-1 inhibitor therapy, implying that the inhibition of PD-1/PD-ligand 1 (PD-L1) signaling on eTregs may attenuate antitumor effects.


Assuntos
Neoplasias , Nivolumabe , Humanos , Nivolumabe/efeitos adversos , Receptor de Morte Celular Programada 1 , Linfócitos T Reguladores/metabolismo , Neoplasias/tratamento farmacológico , Neoplasias/induzido quimicamente , Inibidores de Checkpoint Imunológico
2.
Cancer Immunol Immunother ; 73(2): 23, 2024 Jan 27.
Artigo em Inglês | MEDLINE | ID: mdl-38280026

RESUMO

BACKGROUND: Recently, intestinal bacteria have attracted attention as factors affecting the prognosis of patients with cancer. However, the intestinal microbiome is composed of several hundred types of bacteria, necessitating the development of an analytical method that can allow the use of this information as a highly accurate biomarker. In this study, we investigated whether the preoperative intestinal bacterial profile in patients with esophageal cancer who underwent surgery after preoperative chemotherapy could be used as a biomarker of postoperative recurrence of esophageal cancer. METHODS: We determined the gut microbiome of the patients using 16S rRNA metagenome sequencing, followed by statistical analysis. Simultaneously, we performed a machine learning analysis using a random forest model with hyperparameter tuning and compared the data obtained. RESULTS: Statistical and machine learning analyses revealed two common bacterial genera, Butyricimonas and Actinomyces, which were abundant in cases with recurrent esophageal cancer. Butyricimonas primarily produces butyrate, whereas Actinomyces are oral bacteria whose function in the gut is unknown. CONCLUSION: Our results indicate that Butyricimonas spp. may be a biomarker of postoperative recurrence of esophageal cancer. Although the extent of the involvement of these bacteria in immune regulation remains unknown, future research should investigate their presence in other pathological conditions. Such research could potentially lead to a better understanding of the immunological impact of these bacteria on patients with cancer and their application as biomarkers.


Assuntos
Neoplasias Esofágicas , Microbioma Gastrointestinal , Humanos , Microbioma Gastrointestinal/genética , RNA Ribossômico 16S/genética , Fezes/microbiologia , Recidiva Local de Neoplasia , Bactérias/genética , Neoplasias Esofágicas/cirurgia , Biomarcadores
3.
Circ J ; 2024 Jun 26.
Artigo em Inglês | MEDLINE | ID: mdl-38925928

RESUMO

BACKGROUND: Recent studies suggest that the presence of calcified nodules (CN) is associated with worse prognosis in patients with acute coronary syndrome (ACS). We investigated clinical predictors of optical coherence tomography (OCT)-defined CN in ACS patients in a prospective multicenter registry.Methods and Results: We investigated 695 patients enrolled in the TACTICS registry who underwent OCT assessment of the culprit lesion during primary percutaneous coronary intervention. OCT-CN was defined as calcific nodules erupting into the lumen with disruption of the fibrous cap and an underlying calcified plate. Compared with patients without OCT-CN, patients with OCT-CN (n=28) were older (mean [±SD] age 75.0±11.3 vs. 65.7±12.7 years; P<0.001), had a higher prevalence of diabetes (50.0% vs. 29.4%; P=0.034), hemodialysis (21.4% vs. 1.6%; P<0.001), and Killip Class III/IV heart failure (21.4% vs. 5.7%; P=0.003), and a higher preprocedural SYNTAX score (median [interquartile range] score 15 [11-25] vs. 11 [7-19]; P=0.003). On multivariable analysis, age (odds ratio [OR] 1.072; P<0.001), hemodialysis (OR 16.571; P<0.001), and Killip Class III/IV (OR 4.466; P=0.004) were significantly associated with the presence of OCT-CN. In non-dialysis patients (n=678), age (OR 1.081; P<0.001), diabetes (OR 3.046; P=0.014), and Killip Class III/IV (OR 4.414; P=0.009) were significantly associated with the presence of OCT-CN. CONCLUSIONS: The TACTICS registry shows that OCT-CN is associated with lesion severity and poor clinical background, which may worsen prognosis.

4.
Biol Pharm Bull ; 46(9): 1296-1303, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37661409

RESUMO

A shift towards obtaining emergency contraceptives without a prescription have been discussed in Japan. In response to this social background, we aimed at investigating the background of sexual intercourse, emergency contraceptive use, and knowledge of sexual and reproductive health education among women of reproductive age in Japan. In this study, we conducted a national wide cross-sectional questionnaire survey using a total of 4 web-based domains (background, sexual history, emergency contraceptives, and sexual and reproduction-related knowledge) composed of 50 questions. We obtained responses from a total of 4,631 participants of varying age groups (18-25, 26-35, and 36-45 years old) and 47 prefectures (84 to 118 from each prefecture). Among participant responses, 69.7% are sexually active, of which 49.0% had experiences of sexual intercourse with an unknown person. The responses from a total of 737 participants who have sexual intercourse, know of emergency contraceptives, and have experienced a situation that necessitated the use of emergency contraceptives, were analyzed. Of these participants, 46.4% (342/737) took emergency contraceptives, while 43.6% (321/737) participants did not take emergency contraceptives. Participants who have the knowledge for obtaining emergency contraceptives through the correct means were 52.6% (2438/4631). This study showed that approximately half of participants may not have correct knowledge of emergency contraceptives. In addition, approximately half of sexually active participants are facing unintended pregnancies due to a lack of sexual and reproductive awareness. Hence, comprehensive sex education is necessary to achieve social and regulatory changes centered on emergency contraceptives.


Assuntos
Anticoncepcionais Pós-Coito , Gravidez , Humanos , Feminino , Adolescente , Japão , Estudos Transversais , Inquéritos e Questionários
5.
Clin Exp Nephrol ; 27(2): 179-187, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36303046

RESUMO

BACKGROUND: It is necessary to re-examine the optimal phosphate (P) and calcium (Ca) target values in the contemporary management of chronic kidney disease-mineral and bone disorder to reduce the risks of cardiovascular events in patients receiving hemodialysis. METHODS: We performed a post-hoc analysis of the LANDMARK study. The outcomes were defined as cardiovascular events and all-cause death. Data from 2135 patients receiving hemodialysis at risk of vascular calcification were analyzed using a time-dependent Cox proportional hazard model adjusted for background factors. RESULTS: On the hazard ratio (HR) curve, the ranges where the lower 95% confidence interval (CI) were below the minimum of HR (= 1.00) were as follows: P = 3.5-5.5 mg/dL; albumin-adjusted Ca < 9.1 mg/dL for cardiovascular events; and P = 3.6-5.3 mg/dL; albumin-adjusted Ca < 9.1 mg/dL for all-cause mortality. In stratified analysis, the HRs for cardiovascular events in P < 3.5 mg/dL and P ≥ 5.5 mg/dL were similar to that of P = 3.5-5.5 mg/dL (P ≥ 0.05), and albumin-adjusted Ca ≥ 9.1 mg/dL had higher HR than values < 9.1 mg/dL [1.30 (95% CI 1.00-1.68; P = 0.046)]. For all-cause mortality, the HR in P < 3.6 mg/dL was higher than that in P = 3.6-5.3 mg/dL [1.76 (95% CI 1.25-2.48; P = 0.001)], while the HRs between P ≥ 5.3 mg/dL and P = 3.6-5.3 mg/dL as well as those between albumin-adjusted Ca ≥ 9.1 and < 9.1 mg/dL were not significantly different (P ≥ 0.05). CONCLUSIONS: Managing albumin-adjusted Ca < 9.1 mg/dL may reduce the cardiovascular risk among patients undergoing hemodialysis. Hypophosphatemia < 3.6 mg/dL may be associated with mortality.


Assuntos
Distúrbio Mineral e Ósseo na Doença Renal Crônica , Diálise Renal , Humanos , Albuminas , Cálcio/sangue , Cálcio/química , Doenças Cardiovasculares/etiologia , Doenças Cardiovasculares/prevenção & controle , Fosfatos/sangue , Fosfatos/química , Diálise Renal/efeitos adversos , Diálise Renal/normas , Insuficiência Renal Crônica/complicações , Insuficiência Renal Crônica/terapia , Distúrbio Mineral e Ósseo na Doença Renal Crônica/complicações , Distúrbio Mineral e Ósseo na Doença Renal Crônica/terapia , Hipofosfatemia/etiologia
6.
Blood ; 127(13): 1633-41, 2016 Mar 31.
Artigo em Inglês | MEDLINE | ID: mdl-26626991

RESUMO

ACE910 is a recombinant humanized bispecific antibody that binds to activated factor IX and factor X and mimics the cofactor function of factor VIII (FVIII). This first-in-human study examined the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of ACE910 in healthy male adults. A total of 40 Japanese and 24 white subjects were randomized to receive a single subcutaneous injection of ACE910 (Japanese: 0.001, 0.01, 0.1, 0.3, or 1 mg/kg; white: 0.1, 0.3, or 1 mg/kg; n = 6 per dose group) or placebo (n = 2 per dose group). ACE910 exhibited a linear PK profile and had a half-life of ∼4 to 5 weeks. In FVIII-neutralized plasma, ACE910 shortened activated partial thromboplastin time and increased peak height of thrombin generation in a dose-dependent manner. All adverse events were nonserious and did not lead to any subject's withdrawal. Neither clinical findings nor laboratory abnormalities indicating hypercoagulability were observed. Two of 48 subjects receiving ACE910 (1 Japanese and 1 white) were positive for anti-ACE910 antibodies (anti-drug antibodies [ADAs]). One subject tested positive for ADAs both before and after ACE910 administration, whereas the other became ADA positive after receiving ACE910. The PK and PD profiles of ACE910 were similar in healthy Japanese and white subjects and suggest that ACE910 will be an effective and convenient prophylactic treatment of hemophilia A. This trial was registered at www.clinicaltrials.jp as #JapicCTI-121934.


Assuntos
Anticorpos Biespecíficos/administração & dosagem , Anticorpos Monoclonais Humanizados/administração & dosagem , Adulto , Anticorpos Biespecíficos/efeitos adversos , Anticorpos Biespecíficos/farmacocinética , Anticorpos Monoclonais Humanizados/efeitos adversos , Anticorpos Monoclonais Humanizados/farmacocinética , Materiais Biomiméticos/administração & dosagem , Materiais Biomiméticos/efeitos adversos , Materiais Biomiméticos/farmacocinética , Relação Dose-Resposta a Droga , Fator VIII/uso terapêutico , Voluntários Saudáveis , Humanos , Injeções Subcutâneas , Masculino , Dose Máxima Tolerável , Adulto Jovem
7.
Arerugi ; 65(1): 32-40, 2016 Feb.
Artigo em Japonês | MEDLINE | ID: mdl-26923652

RESUMO

BACKGROUND: In abroad, Methacholine Chloride (Provocholine®) is used to meet the indications of the diagnosis of bronchial airway hyperreactivity in subjects who do not have clinically apparent asthma. We examined efficacy, safety and pharmacokinetics of Methacholine Chloride (name of study drug: SK-1211) in order to get approved for the airway hyperresponsiveness test in Japan. METHODS: Fifteen adult healthy volunteers, fifteen adult patients with asthma and ten pediatric patients with asthma were enrolled in this study. The airway hyperresponsiveness test with SK-1211 was conducted in accordance with Japanese Society of Allergology Standard Method. RESULTS: When the threshold value of PC20 was 8 mg/mL, the sensitivity of adult patients with asthma was 66.7% (10/15 subjects) and the specificity of adult healthy volunteers was 86.7% (13/15 subjects). The sensitivity of pediatric patients with asthma was 70.0% (7/10 subjects). Not all subjects experienced some adverse reactions during inhalation of SK-1211, all of which were mild in severity and resolved soon with inhalation of a bronchodilator. There were no serious adverse reactions reported. CONCLUSION: The airway hyperresponsiveness test with SK-1211 was no specific concern with safety and useful in the diagnosis of bronchial airway hyperresponsiveness.


Assuntos
Asma/tratamento farmacológico , Cloreto de Metacolina/uso terapêutico , Adolescente , Adulto , Testes de Provocação Brônquica , Broncodilatadores , Criança , Feminino , Humanos , Masculino , Cloreto de Metacolina/efeitos adversos , Adulto Jovem
8.
J Pharmacol Sci ; 128(2): 87-91, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-26032840

RESUMO

Osteoclasts are important target cells for osteoporosis treatment. Recently, a real-time cell analysis (RTCA) system was developed to observe cell morphology and adhesion; however, the use of RTCA to study osteoclastogenesis has not been reported. Here, we investigated whether osteoclast formation could be monitored in real-time using RTCA. The cell index determined via electrical impedance using RTCA, and the number of osteoclasts exhibited a significant positive correlation. RTCA was useful for determining the effect of (-)-epigallocatechin-3-gallate on the inhibition of bone resorption. We established a new method of measuring osteoclast formation in real-time using RTCA.


Assuntos
Sistemas Computacionais , Técnicas Citológicas/métodos , Impedância Elétrica , Osteoclastos/citologia , Reabsorção Óssea/patologia , Reabsorção Óssea/prevenção & controle , Catequina/análogos & derivados , Catequina/farmacologia , Diferenciação Celular , Células Cultivadas , Humanos , Fator Estimulador de Colônias de Macrófagos , Ligante RANK
9.
Anticancer Res ; 44(5): 2003-2007, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38677735

RESUMO

BACKGROUND/AIM: The combination of venetoclax (VEN) and azacitidine (AZA) (VEN+AZA) leads to higher complete remission rates and longer overall survival (OS) in patients with untreated acute myeloid leukemia (AML) who are ineligible for intensive combination chemotherapy. In practice, the doses of VEN and AZA are reduced at the attending physician's discretion to avoid adverse events; however, the impact of dose and duration reductions has not been fully clarified. We analyzed whether the efficacy was maintained with reduced VEN+AZA compared to AZA monotherapy in the real world. PATIENTS AND METHODS: A total of 33 patients were included; 17 (10 newly diagnosed, 7 primary refractory or relapsed) received VEN+AZA, and 16 (7 newly diagnosed, 9 primary refractory or relapsed) received AZA. We analyzed complete remission (CR) and CR with incomplete hematologic recovery (CRi) rates, OS, and the incidence of adverse events. RESULTS: CR/CRi were achieved in 7/17 (41.2%) and 11/17 (64.7%) patients in the VEN+AZA group and 0/15 (0%) and 2/15 (6.7%) patients in the AZA group, respectively. The CR/CRi rate was higher in the VEN+AZA group than in the AZA group (p=0.001). OS was longer in the VEN+AZA group than in the AZA group (p=0.03), with a median of 506 days [95% confidence interval (CI)=234-585 days] and 208 days (95% CI=52-343 days), respectively. CONCLUSION: The doses of the VEN+AZA combination were reduced at the attending physician's discretion, resulting in a higher CR/CRi rate and longer OS than AZA monotherapy and is considered useful for AML in the real world.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica , Azacitidina , Compostos Bicíclicos Heterocíclicos com Pontes , Leucemia Mieloide Aguda , Sulfonamidas , Humanos , Azacitidina/uso terapêutico , Azacitidina/efeitos adversos , Azacitidina/administração & dosagem , Leucemia Mieloide Aguda/tratamento farmacológico , Leucemia Mieloide Aguda/mortalidade , Masculino , Compostos Bicíclicos Heterocíclicos com Pontes/uso terapêutico , Compostos Bicíclicos Heterocíclicos com Pontes/administração & dosagem , Compostos Bicíclicos Heterocíclicos com Pontes/efeitos adversos , Feminino , Idoso , Sulfonamidas/uso terapêutico , Sulfonamidas/administração & dosagem , Sulfonamidas/efeitos adversos , Pessoa de Meia-Idade , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Idoso de 80 Anos ou mais , Resultado do Tratamento , Indução de Remissão , Adulto
11.
J Clin Med ; 13(15)2024 Aug 05.
Artigo em Inglês | MEDLINE | ID: mdl-39124837

RESUMO

Background/Objectives: The use of food thickeners with ciprofloxacin tablets may result in a gelatinous appearance and experience delayed dissolution, which presents a challenge for the drug's efficacy, creating a healthcare economic issue. However, the pharmacokinetic impact of this compound in humans remains uncertain. Therefore, a comparative pharmacokinetic study of ciprofloxacin was conducted on healthy adult Japanese males. Methods: We compared the effects of administering tablets with water or thickened water and crushed tablets mixed with thickened water. The maximum blood concentration (Cmax) of ciprofloxacin determines the drug's efficacy. Results: There were variations in drug absorption across different administration methods. The group who took the tablets immersed in thickened water exhibited different results in the area under the blood drug concentration-time curve (AUC) and Cmax compared to the group who took the tablets in regular water. Notably, the group that consumed the crushed tablets mixed with thickened water demonstrated equivalent results for both AUC and Cmax. Conclusions: Administering crushed tablets in thickened water may yield pharmacokinetics comparable to those of tablets taken with water. However, the process of crushing tablets may result in the loss of active ingredients and compromise the formulation, necessitating a comprehensive assessment before administration.

12.
J Clin Med ; 13(1)2024 Jan 02.
Artigo em Inglês | MEDLINE | ID: mdl-38202269

RESUMO

BACKGROUND: Patients under cardiopulmonary resuscitation (CPR) are at high risk of aspirating gastric contents. Nasogastric tube insertion (NGTI) after tracheal intubation is usually performed blindly. This sometimes causes laryngopharyngeal mucosal injury (LPMI), leading to severe bleeding. This study clarified the incidence of LPMI due to blind NGTI during CPR. METHODS: We retrospectively analyzed 84 patients presenting with cardiopulmonary arrest on arrival, categorized them into a Smooth group (Smooth; blind NGTI was possible within 2 min), and Difficult group (blind NGTI was not possible), and consequently performed video laryngoscope-assisted NGTI. The laryngopharyngeal mucosal condition was recorded using video laryngoscope. Success rates and insertion time for the Smooth group were calculated. Insertion number and LPMI scores were compared between the groups. Each regression line of outcome measurements was obtained using simple regression analysis. We also analyzed the causes of the Difficult group, using recorded video laryngoscope-assisted videos. RESULTS: The success rate was 78.6% (66/84). NGTI time was 48.8 ± 4.0 s in the Smooth group. Insertion number and injury scores in the Smooth group were significantly lower than those in the Difficult group. The severity of LPMI increased with NGT insertion time and insertion number. CONCLUSIONS: Whenever blind NGTI is difficult, switching to other methods is essential to prevent unnecessary persistence.

13.
Cancers (Basel) ; 16(9)2024 Apr 27.
Artigo em Inglês | MEDLINE | ID: mdl-38730650

RESUMO

Background: The advancement of multidisciplinary treatment has increased the need to develop tests to monitor tumor burden during treatment. We herein analyzed urinary microRNAs within extracellular vesicles from patients with esophageal squamous cell carcinoma (ESCC) and normal individuals using a microarray. Methods: Patients with advanced ESCC who underwent esophagectomy (A), endoscopic submucosal resection (ESD) (B), and healthy donors (C) were included. Based on microRNA expression among the groups (Analysis 1), microRNAs with significant differences between groups A and C were selected (Analysis 2). Of these candidates, microRNAs in which the change between A and C was consistent with the change between B and C were selected for downstream analysis (Analysis 3). Finally, microRNA expression was validated in patients with recurrence from A (exploratory analysis). Results: For analysis 1, 205 microRNAs were selected. For Analyses 2 and 3, the changes in 18 microRNAs were consistent with changes in tumor burden as determined by clinical imaging and pathological findings. The AUC for the detection of ESCC using 18 microRNAs was 0.72. In exploratory analysis, three of eighteen microRNAs exhibited a concordant trend with recurrence. Conclusions: The current study identified the urinary microRNAs which were significantly expressed in ESCC patients. Validation study is warranted to evaluate whether these microRNAs could reflect tumor burden during multidisciplinary treatment for ESCC.

14.
Sci Rep ; 14(1): 11325, 2024 05 17.
Artigo em Inglês | MEDLINE | ID: mdl-38760458

RESUMO

The low response rate of immune checkpoint inhibitors (ICIs) is a challenge. The efficacy of ICIs is influenced by the tumour microenvironment, which is controlled by the gut microbiota. In particular, intestinal bacteria and their metabolites, such as short chain fatty acids (SCFAs), are important regulators of cancer immunity; however, our knowledge on the effects of individual SCFAs remains limited. Here, we show that isobutyric acid has the strongest effect among SCFAs on both immune activity and tumour growth. In vitro, cancer cell numbers were suppressed by approximately 75% in humans and mice compared with those in controls. Oral administration of isobutyric acid to carcinoma-bearing mice enhanced the effect of anti-PD-1 immunotherapy, reducing tumour volume by approximately 80% and 60% compared with those in the control group and anti-PD-1 antibody alone group, respectively. Taken together, these findings may support the development of novel cancer therapies that can improve the response rate to ICIs.


Assuntos
Inibidores de Checkpoint Imunológico , Receptor de Morte Celular Programada 1 , Microambiente Tumoral , Animais , Camundongos , Humanos , Receptor de Morte Celular Programada 1/antagonistas & inibidores , Inibidores de Checkpoint Imunológico/farmacologia , Inibidores de Checkpoint Imunológico/uso terapêutico , Microambiente Tumoral/efeitos dos fármacos , Microambiente Tumoral/imunologia , Linhagem Celular Tumoral , Feminino , Microbioma Gastrointestinal/efeitos dos fármacos , Imunoterapia/métodos , Neoplasias/tratamento farmacológico , Neoplasias/imunologia , Neoplasias/patologia , Ácidos Graxos Voláteis/metabolismo , Ácidos Graxos Voláteis/farmacologia , Sinergismo Farmacológico
15.
Ther Apher Dial ; 27(3): 523-529, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-36446713

RESUMO

INTRODUCTION: The clinical benefit of vitamin D receptor activators (VDRA) in patients with well-controlled secondary hyperparathyroidism undergoing dialysis remains unclear. METHODS: This post hoc analysis of the LANDMARK study investigates if VDRA use is associated with cardiovascular benefits. Data of 2135 patients undergoing hemodialysis who were at risk for vascular calcification were analyzed using a Cox proportional hazards model with propensity-score matching. RESULTS: The hazard ratio (HR) for VDRA use was 0.99 (95% confidence interval [CI]: 0.67-1.46; p = 0.945) for cardiovascular events and 0.89 (95% CI: 0.62-1.28; p = 0.541) for all-cause mortality at baseline. Among patients who always used VDRA, the HR was 1.12 (95% CI: 0.67-1.89; p = 0.666) for cardiovascular events and 1.11 (95% CI: 0.67-1.85; p = 0.688) for all-cause mortality compared to those who never used VDRA. CONCLUSION: The use of VDRA does not reduce the risks of cardiovascular events or all-cause mortality in patients on dialysis with well-controlled secondary hyperparathyroidism.


Assuntos
Doenças Cardiovasculares , Hiperparatireoidismo Secundário , Humanos , Receptores de Calcitriol , Diálise Renal/efeitos adversos , Modelos de Riscos Proporcionais , Hiperparatireoidismo Secundário/etiologia , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/prevenção & controle , Vitamina D
16.
Int J Dermatol ; 62(5): 694-699, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-35751767

RESUMO

The extract of Polypodium leucotomos is used as a dietary supplement for its ultraviolet radiation-protective properties. Polypodium leucotomos extract reportedly inhibits CYP3A, which is important for drug metabolism in vitro in human microsomes and in vivo in rats. In this study, we explored the inhibitory effect of the P. leucotomos extract on CYP3A4-mediated midazolam metabolism in humans. This open-label, two-period, fixed-sequence study was performed on six healthy, Japanese, male volunteers. During period 1 (control), midazolam (1 mg) was orally administered. After a wash-out period of at least 5 days, period 2 was initiated. Subjects ingested P. leucotomos extract (240 mg) once in the morning and once at noon on the day before midazolam administration, and once the next morning (thrice overall). Midazolam was administered as in period 1. Blood samples were regularly collected for 8 hours after drug administration, and serum midazolam concentration was determined by ultra-fast liquid chromatography-tandem mass spectrometry. The pharmacokinetic parameters of midazolam were calculated and compared between the two periods. The area under the concentration-time curve was 19.18 ± 3.65 ng h/ml, maximum serum concentration was 7.81 ± 1.25 ng/ml, and half-life was 2.32 ± 0.35 hours during period 2. These parameters did not differ from those recorded in period 1 (area under the concentration-time curve: 18.74 ± 2.97 ng h/ml, maximum serum concentration: 8.78 ± 1.67 ng/ml, half-life: 2.52 ± 0.52 h). Therefore, short-term oral administration of P. leucotomos extract did not cause food-drug interactions mediated by CYP3A4 inhibition in humans.


Assuntos
Midazolam , Polypodium , Humanos , Masculino , Animais , Ratos , Midazolam/farmacologia , Citocromo P-450 CYP3A/metabolismo , Polypodium/metabolismo , Voluntários Saudáveis , Raios Ultravioleta , Administração Oral , Área Sob a Curva , Interações Medicamentosas
17.
Pharmaceutics ; 15(8)2023 Aug 03.
Artigo em Inglês | MEDLINE | ID: mdl-37631293

RESUMO

Children with Kawasaki disease are prescribed acetylsalicylic acid powder as an antipyretic analgesic and antiplatelet agent; however, some of it remains in the mouth, leading to a bitter or sour taste. To address this issue, an in-hospital mini-tablet formulation of acetylsalicylic acid was developed. In order to use the mini-tablets safely and effectively, dissolution tests alone are not sufficient. Therefore, an open-label crossover study on six healthy participants was conducted to evaluate comparative pharmacokinetic parameters. The pharmacokinetic parameters of salicylic acid were Cmax: 4.80 ± 0.79 mg/L (powder; P), 5.03 ± 0.97 mg/L (mini-tablet; MT), AUC0-12: 18.0 ± 3.03 mg-h/L (P), 18.9 ± 4.59 mg-h/L (MT), those of acetylsalicylic acid Cmax: 0.50 ± 0.20 mg/L (P), 0.41 ± 0.24 mg/L (MT), AUC0-12: 0.71 ± 0.27 mg-h/L (P), 0.61 ± 0.36 mg-h/L (MT), with no significant differences between the mini-tablet and powder formulations. Although pharmacokinetic results obtained from adults cannot be directly applied to children, the results of this study are important for predicting pharmacokinetics. Furthermore, a formulation that can improve medication adherence in children who have difficulty taking acetylsalicylic acid powder, thus contributing to pediatric drug therapy.

18.
Front Immunol ; 14: 1164724, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37207204

RESUMO

Introduction: Immune checkpoint inhibitors have had a major impact on cancer treatment. Gut microbiota plays a major role in the cancer microenvironment, affecting treatment response. The gut microbiota is highly individual, and varies with factors, such as age and race. Gut microbiota composition in Japanese cancer patients and the efficacy of immunotherapy remain unknown. Methods: We investigated the gut microbiota of 26 patients with solid tumors prior to immune checkpoint inhibitor monotherapy to identify bacteria involved in the efficacy of these drugs and immune-related adverse events (irAEs). Results: The genera Prevotella and Parabacteroides were relatively common in the group showing efficacy towards the anti-PD-1 antibody treatment (effective group). The proportions of Catenibacterium (P = 0.022) and Turicibacter (P = 0.049) were significantly higher in the effective group than in the ineffective group. In addition, the proportion of Desulfovibrion (P = 0.033) was significantly higher in the ineffective group. Next, they were divided into irAE and non-irAE groups. The proportions of Turicibacter (P = 0.001) and Acidaminococcus (P = 0.001) were significantly higher in the group with irAEs than in those without, while the proportions of Blautia (P = 0.013) and the unclassified Clostridiales (P = 0.027) were significantly higher in the group without irAEs than those with. Furthermore, within the Effective group, Acidaminococcus and Turicibacter (both P = 0.001) were more abundant in the subgroup with irAEs than in those without them. In contrast, Blautia (P = 0.021) and Bilophila (P= 0.033) were statistically significantly more common in those without irAEs. Discussion: Our Study suggests that the analysis of the gut microbiota may provide future predictive markers for the efficacy of cancer immunotherapy or the selection of candidates for fecal transplantation for cancer immunotherapy.


Assuntos
Inibidores de Checkpoint Imunológico , Neoplasias , Humanos , Inibidores de Checkpoint Imunológico/efeitos adversos , Acidaminococcus , Neoplasias/tratamento farmacológico , Neoplasias/etiologia , Imunoterapia/efeitos adversos , Microambiente Tumoral
19.
J Am Heart Assoc ; 12(20): e030412, 2023 10 17.
Artigo em Inglês | MEDLINE | ID: mdl-37804195

RESUMO

Background The prognostic impact of optical coherence tomography-diagnosed culprit lesion morphology in acute coronary syndrome (ACS) has not been systematically examined in real-world settings. Methods and Results This investigator-initiated, prospective, multicenter, observational study was conducted at 22 Japanese hospitals to identify the prevalence of underlying ACS causes (plaque rupture [PR], plaque erosion [PE], and calcified nodules [CN]) and their impact on clinical outcomes. Patients with ACS diagnosed within 24 hours of symptom onset undergoing emergency percutaneous coronary intervention were enrolled. Optical coherence tomography-guided percutaneous coronary intervention recipients were assessed for underlying ACS causes and followed up for major adverse cardiac events (cardiovascular death, myocardial infarction, heart failure, or ischemia-driven revascularization) at 1 year. Of 1702 patients with ACS, 702 (40.7%) underwent optical coherence tomography-guided percutaneous coronary intervention for analysis. PR, PE, and CN prevalence was 59.1%, 25.6%, and 4.0%, respectively. One-year major adverse cardiac events occurred most frequently in patients with CN (32.1%), followed by PR (12.4%) and PE (6.2%) (log-rank P<0.0001), primarily driven by increased cardiovascular death (CN, 25.0%; PR, 0.7%; PE, 1.1%; log-rank P<0.0001) and heart failure trend (CN, 7.1%; PR, 6.8%; PE, 2.2%; log-rank P<0.075). On multivariate Cox regression analysis, the underlying ACS cause was associated with 1-year major adverse cardiac events (CN [hazard ratio (HR), 4.49 [95% CI, 1.35-14.89], P=0.014]; PR (HR, 2.18 [95% CI, 1.05-4.53], P=0.036]; PE as reference). Conclusions Despite being the least common, CN was a clinically significant underlying ACS cause, associated with the highest future major adverse cardiac events risk, followed by PR and PE. Future studies should evaluate the possibility of ACS underlying cause-based optical coherence tomography-guided optimization.


Assuntos
Síndrome Coronariana Aguda , Insuficiência Cardíaca , Intervenção Coronária Percutânea , Placa Aterosclerótica , Humanos , Síndrome Coronariana Aguda/diagnóstico por imagem , Síndrome Coronariana Aguda/epidemiologia , Síndrome Coronariana Aguda/terapia , Vasos Coronários/patologia , Insuficiência Cardíaca/complicações , Intervenção Coronária Percutânea/efeitos adversos , Placa Aterosclerótica/patologia , Prognóstico , Estudos Prospectivos , Estudos Retrospectivos , Tomografia de Coerência Óptica/métodos
20.
Neuropsychopharmacol Rep ; 42(3): 249-255, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35485452

RESUMO

AIM: Atomoxetine (ATX) is a non-central stimulant and a standard treatment for adult attention-deficit/hyperactivity disorder (ADHD). The long-term efficacy of Atomoxetine is about 40% at 6 months. The variability in efficacy between individuals is thought to be related to patient-specific factors, but no detailed research has been conducted. In this retrospective cohort study, we aimed to identify the factors associated with Atomoxetine efficacy. METHODS: A total of 147 patients with attention-deficit/hyperactivity disorder aged ≥18 years who were using Atomoxetine for the first time were included in this study. The outcome was treatment success (treatment maintained for at least 6 months and improvement in symptoms). Symptom assessment was based on the overall improvement in symptoms judged by an expert physician. RESULTS: Of the patient sample, 103 (70.1%) achieved the outcome. Logistic regression analysis identified "the maximum dose of ATX" and "gambling habit" as factors associated with efficacy ( P  < 0.05). In the process of Atomoxetine titration, the larger the maximum dose, the higher the efficacy was shown to be. Gambling habits may be indicative of impulsivity, which is among the core symptoms of attention-deficit/hyperactivity disorder. Thus, a gambling habit may be considered a surrogate marker for impulsivity. CONCLUSIONS: Knowledge of these factors will help healthcare professionals to predict the likely efficacy of Atomoxetine in a given patient before subscribing it, facilitating individualized pharmacotherapy for adult attention-deficit/hyperactivity disorder.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade , Adolescente , Inibidores da Captação Adrenérgica/uso terapêutico , Adulto , Cloridrato de Atomoxetina/uso terapêutico , Transtorno do Deficit de Atenção com Hiperatividade/diagnóstico , Humanos , Estudos Retrospectivos , Resultado do Tratamento
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