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Interface modification plays an important role in improving the power conversion efficiency (PCE) of organic solar cells (OSCs). However, the low non-covalent interaction between the cathode interface layer (CIL) and nonfullerene acceptor (NFA) directly affects the charge collection of OSCs. Here, the non-covalent interaction between the CIL and NFA is enhanced by introducing the 2D vermiculite (VML) in the poly(9,9-bis(3'-(N,N-dimethyl)-Nethylammonium-propyl-2,7-fluorene)-alt-2,7-(9,9-dioctylfluorene)) dibromide (PFN-Br) interface layer to form an efficient electron transport channel. As a result, the electron extraction efficiency from the active layer to the CIL is increased, and the PCE of OSCs based on PBDB-T:ITIC is boosted from 10.87% to 12.89%. In addition, the strategy of CIL doping VML is proven to be universal in different CIL materials, for which the PCE is boosted from 10.21% to 11.57% for OSCs based on PDINN and from 9.82% to 11.27% for OSCs based on PNDIT-F3N. The results provide a viable option for designing efficient CIL for high-performance non-fullerene OSCs, which may promote the commercialization of OSCs.
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Background: Medication therapy management (MTM) services is a method that can effectively improve patients' conditions, but the efficacy of economic and humanistic outcomes remain unclear. This systematic review and meta-analysis aim to use economic, clinical and humanistic outcomes to evaluate the multi-benefits of MTM services. Method: A systematic review and meta-analysis was conducted by retrieving PubMed, EMBASE, the Cochrane Library and ClinicalTrial.gov from the inception to April 2022. There were two reviewers screening the records, extracting the data, and assessing the quality of studies independently. Results: A total of 81 studies with 60,753 participants were included. MTM services were more effective in clinical outcomes with decreasing the rate of readmission (OR: 0.78; 95% CI: 0.73 to 0.83; I2 = 56%), emergency department visit (OR: 0.88; 95% CI: 0.81 to 0.96; I2 = 32%), adverse drug events (All-cause: OR: 0.68; 95% CI: 0.56 to 0.84; I2 = 61%; SAE: OR: 0.51; 95% CI: 0.33 to 0.79; I2 = 35%) and drug-related problems (MD: -1.37; 95% CI: -2.24 to -0.5; I2 = 95%), reducing the length of stay in hospital (MD: -0.74; 95% CI: -1.37 to -0.13; I2 = 70%), while the economic and humanistic outcomes were less effective. Conclusion: Our systematic review and meta-analysis demonstrated that MTM services had great ability to improve patients' clinical conditions while the efficacy of economic and humanistic outcomes, with some of the outcomes showing high degree of heterogeneity and possible publication bias, required more future studies to provide stronger evidence. Systematic Review Registration: [https://www.crd.york.ac.uk/PROSPERO/display_record.php?RecordID=349050], identifier [CRD42022349050].
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Recently, water promotion effects in the selective oxidation of benzyl alcohol to benzaldehyde have been experimentally recognized and identified. However, the effects of water on the photocatalytic selective oxidation of toluene into benzaldehyde remain elusive. In this work, the Ti3O9H6 clusters in different solvents (water and toluene solvent) are used to study the water-induced effects in photocatalytic oxidation reactions in kinetics and thermodynamics using density functional theory (DFT) calculations. In addition, the influences of the OH groups on catalysts (Ti-OH bonds) from photocatalytic water splitting are also considered. The results clearly demonstrate the water-induced double-edged sword effects in the photocatalytic selective oxidation of toluene. We expect that our work can not only shed light on the mechanisms of photocatalytic selective oxidation of toluene into benzaldehyde and other activation reactions of sp3 C-H bonds but also design and modulate highly efficient photocatalysts.
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Fluorine atoms doping was reported in experiment to reduce the band gap, improve the oxidation potential of hole, and polarize the electron distribution of polymeric carbon nitride (PCN). However, the relationships between different types of F doping and the roles of F doping in electronic and optical properties remain elusive. In this work, we investigate several F doping types in PCN and analyze their different roles in electronic and optical properties with the first-principles calculations. The results show that two stable and cooperative F doping types are found, one is to form the C (sp3)-F bond (Fcorner type), and the other is F atom replacing amino group -NH2 (FN3 type) forming covalent C-F bond. The Fcorner doping reduces the energy level of valence-band maximum (VBM), causes excited electron-hole distribution polarized, and increases the hole distribution on F atoms, which strengthens the capacity of photocatalytic oxidation and improves the electron-hole separation efficiency, while FN3 type doping plays the roles of reducing the bandgap and improving the light absorption. In addition, under the synergistic action of two types of F doping, the adsorption energy of toluene on F-codoped PCN is greatly enhanced, improving the ability of photocatalytic activation of toluene. Our work develops a new understanding of F doping and reveals the roles of different types of F doping, providing a rationale for designing and regulating more efficient photocatalysts and improving the properties of photocatalytic toluene oxidation.
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OBJECTIVE: In 2017, China launched a new round of medical reform (NMR) to address the inaccessibility of high-priced drugs for patients with serious diseases. This study explored the impact of the NMR on the accessibility and affordability of high-priced monoclonal antibodies (mAbs), and the effective promotion policies after the NMR. METHODS: We used a standard method developed by the World Health Organization to conduct two surveys on the availability of mAbs and their prices before and after the NMR in the public hospitals in Hubei province, China. By interviewing hospital pharmacy experts, we identified the potential value of the current NMR in improving the access to therapeutic mAbs. RESULTS: The average availability of 13 mAbs increased by 8.1% in the surveyed hospitals of Hubei province after the NMR. The median unit price of 10 mAbs dropped by 34.3%. The average affordability of a treatment cycle of 10 mAbs dropped from 680 days to 298 days of the disposable daily income for a middle-income resident (56.2% reduction). The drug price negotiation of medical insurance inclusion and the promotion of consistent evaluation of generic and original drugs could effectively promote the accessibility of mAbs. However, the zero markup of drug pricing and the limit on the proportion of drug revenues in public hospitals showed certain negative effects on the availability of mAbs. CONCLUSION: Not all current NMR policies play a positive role in promoting the accessibility of mAbs. To further improve the accessibility of mAbs in the future in China, it is therefore critical to increase the investment in independent research and development of high-quality mAbs, establish localized guidelines for the rational use of mAbs in clinical practice, and have a cost-sharing mechanism for high-priced drugs with multiple stakeholders.
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Hospitais Públicos , Humanos , Custos e Análise de Custo , Inquéritos e Questionários , ChinaRESUMO
BACKGROUND: Medication therapy management (MTM) service is an effective method to reduce medication-related problems and improve patients' multiple kinds of outcomes. However, the lack of comprehensive review for MTM services has hindered its development. As a result, we are aiming to evaluate the current benefits of MTM services with multiple outcomes. METHOD: An electronic search will be performed for randomized controlled trials (RCTs) or non-randomized control trials (NRCTs) that reported MTM services or pharmaceutical services as interventions from PubMed, The Cochrane Library, Embase, and ClinicalTrial. gov. The odds ratios, mean differences, and standard mean differences and their 95% confidence intervals (95% confidence intervals) will be calculated with fixed or random effect models. RESULTS: This study will evaluate the multiple benefits of MTM services in clinical endpoints, quality of life, economy, and drug-related problems. CONCLUSION: The results will review eligible studies released in the past twenty years and provide more comprehensive evidence of the efficacy of MTM services. ETHICS AND DISSEMINATION: Ethical approval is not applicable for this study.
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Ensaios Clínicos Controlados como Assunto , Conduta do Tratamento Medicamentoso , Metanálise como Assunto , Revisões Sistemáticas como Assunto , Humanos , Assistência Farmacêutica , Qualidade de Vida , Revisões Sistemáticas como Assunto/métodosRESUMO
The three-dimensional (3D) organic-inorganic halide perovskite MAPbI3 has excellent light-harvesting properties but is unstable. However, the newly synthesized two-dimensional (2D) all-inorganic Ruddlesden-Popper (RP) perovskite Cs2PbI2Cl2 has superior stability but adverse photoelectric properties. Therefore, constructing a 2D Cs2PbI2Cl2/3D MAPbI3 heterostructure is expected to combine the superstability of the 2D material and the high efficiency of the 3D one. The photoelectric properties and charge transfer of 2D Cs2PbI2Cl2/3D MAPbI3 heterostructures are investigated using density functional theory, where MAPbI3 has two kinds of contacting interfaces, i.e., MAI and PbI interfaces. The band gaps of 2D/MAI and 2D/PbI heterostructures are 1.52 eV and 1.40 eV, smaller than those of the free-standing materials (2D â¼ 2.50 eV, MAI â¼ 1.77 eV, and PbI â¼ 1.73 eV), which can broaden the light absorption spectrum. Moreover, the 2D/3D heterostructures are typical type-II heterostructures, which is beneficial to facilitate the separation of carriers for increasing the photoelectric conversion. Interestingly, due to the work function difference (2D â¼ 4.97 eV, MAI â¼ 3.57 eV, and PbI â¼ 5.49 eV), the charge transfer directions of the 2D/MAI and 2D/PbI heterostructures are completely opposite, which shows that interface engineering to impose a consistent interface termination is needed to obtain good performance for solar cells. These results demonstrate that constructing 2D Cs2PbI2Cl2 and 3D MAPbI3 heterostructures by interfacial engineering is a potential strategy to improve the performance of perovskite solar cells (PSCs).
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OBJECTIVE: Generic drugs provide an opportunity for savings in drug expenditure since they are available at a lower cost and do not affect patients' health. A better understanding of pharmacists' knowledge, attitudes, and perception can promote the quality use of generic drugs. The objective of this study was to investigate the knowledge, attitudes, and perception of pharmacists from tertiary hospitals in China regarding generic drugs. METHODS: A cross-sectional survey using a postal questionnaire was conducted, which was sent to 200 hospital pharmacists randomly selected from tertiary hospitals in Hubei Province. A total of 125 questionnaires out of 200 were received. Of the respondents, 80 were female and 45 were male. RESULTS: The majority of respondents (87.2%) could clearly distinguish between original and generic drugs. Pharmacists agreed that generic drugs were less effective (52.8%) and produced more side effects (52%). Fortynine respondents thought that generic drug products were not adequately tested. Approximately 78% and 60% of the pharmacists indicated that generic substitution was not feasible for drugs with narrow therapeutic windows and drugs for critical diseases, respectively. Most of them supported the recommendation of generic drugs based on professional judgment. CONCLUSION: Our study showed that a considerable portion of Chinese hospital pharmacists hold negative perceptions of generic drugs. Interventions to improve pharmacists' knowledge of generic drugs are needed.
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Substituição de Medicamentos/psicologia , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/epidemiologia , Medicamentos Genéricos/efeitos adversos , Farmacêuticos/estatística & dados numéricos , Adulto , China/epidemiologia , Estudos Transversais , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Farmacêuticos/psicologia , Centros de Atenção Terciária , Adulto JovemRESUMO
Bismuth oxyhalides (BiOX), as a typical photocatalytic material, have attracted much attention due to their unique layered structure, non-toxicity and excellent stability. However, the photocatalytic performance of BiOX is limited by their weak light absorption ability and rapid recombination of photo-generated carriers. In the present work, first-principles calculations have been performed to comprehensively explore the structural, electronic and optical properties of black phosphorus (BP)/BiOX (X = Cl, Br, I) heterostructures, revealing the inherent reasons for their enhanced photocatalytic performance. By combining band structures and work function analysis, the migration paths of photo-generated electrons and holes are obtained, proving a direct Z-scheme photocatalytic mechanism in BP/BiOX heterostructures. Moreover, the BP/BiOX heterostructures have decent band edge positions, which are suitable for photocatalytic overall water splitting. Compared with single BiOX, the light absorption performance of BP/BiOX heterostructures is significantly improved, in which BP/BiOI exhibits the highest optical absorption coefficient among the BP/BiOX heterostructures. Meanwhile, the better carrier migration performance of the BP/BiOX heterostructures is attributed to the reduction in effective mass. The present work offers theoretical insight into the application of BP/BiOX heterostructures as prominent photocatalysts for water splitting.
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Photocatalytic water splitting is a promising technology to solve serious energy and environmental problems. The PtS2 monolayer has been previously predicted to be a water splitting photocatalyst. But the high efficiency of carrier recombination in the monolayer results in poor photocatalytic performance. It is well known that the construction of van der Waals (vdW) heterojunctions can improve the photocatalytic performance of a monolayer. In this investigation, we constructed a PtS2/SnS2 vdW heterojunction and systematically investigated the influence of the doping position and doping ratio on its performance using density functional theory calculations. Interestingly, the band alignment transforms from Type-II to Type-I and from Type-I to Type-II when the S in SnS2 is replaced with Se in the PtS2/SnS2 vdW heterojunction and the S in PtS2 is replaced with Se in the PtS2/SnSe2 vdW heterojunction, respectively. More importantly, from the PtS2/SnS2 to PtSe2/SnSe2 vdW heterojunction, the decomposition of water also changes from semi-decomposed water to fully decomposed water. Furthermore, the results show that the direct Z-scheme photocatalytic mechanism exists in the PtSSe/SnSe2 vdW heterojunction by analysis of the migration paths of photoinduced electrons and holes. And compared with the PtS2/SnS2, the PtSSe/SnSe2 heterostructure exhibits better photocatalytic water splitting activities. These results can provide a direction that doping can improve the photocatalytic water splitting performance of heterojunction photocatalysts.
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In general, two-dimensional semiconductor-based van der Waals heterostructures (vdWHs) can be modulated to achieve the transition of band alignments (type-I, type-II, and type-III), which can be applied in different applications. However, it is rare in three-dimensional perovskite-based vdWHs, and it is challenging to achieve the tunable band alignments for a single perovskite-based heterostructure. Here, we systematically investigate the electronic and optical properties of all-inorganic perovskite vdWHs CsSnBr3/WS2(1-x)Se2x based on density functional theory (DFT) calculation. The calculated results show that the transitions of band alignment from type-II to type-I and type-III to type-II are achieved by modulating the doping ratio of the Se atom in the WS2(1-x)Se2x monolayer for SnBr2/WS2(1-x)Se2x and CsBr/WS2(1-x)Se2x heterostructures, respectively, in which the CsBr and SnBr2 represent two different terminated surfaces of CsSnBr3. The change of band alignments can be attributed to the conduction band minimum (CBM) transforming from the W 5d to Sn 5p orbital in SnBr2/WS2(1-x)Se2x vdWHs, and the valence band maximum (VBM) and CBM change from an overlapped state to a separated one in CsBr/WS2(1-x)Se2x vdWHs. This work can provide a theoretical basis for the dynamic modulation of band alignments in perovskite-based vdWHs.
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The novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the cause of a rapidly spreading illness, coronavirus disease 2019 (COVID-19), affecting more than seventeen million people around the world. Diagnosis and treatment guidelines for clinicians caring for patients are needed. In the early stage, we have issued "A rapid advice guideline for the diagnosis and treatment of 2019 novel coronavirus (2019-nCoV) infected pneumonia (standard version)"; now there are many direct evidences emerged and may change some of previous recommendations and it is ripe for develop an evidence-based guideline. We formed a working group of clinical experts and methodologists. The steering group members proposed 29 questions that are relevant to the management of COVID-19 covering the following areas: chemoprophylaxis, diagnosis, treatments, and discharge management. We searched the literature for direct evidence on the management of COVID-19, and assessed its certainty generated recommendations using the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) approach. Recommendations were either strong or weak, or in the form of ungraded consensus-based statement. Finally, we issued 34 statements. Among them, 6 were strong recommendations for, 14 were weak recommendations for, 3 were weak recommendations against and 11 were ungraded consensus-based statement. They covered topics of chemoprophylaxis (including agents and Traditional Chinese Medicine (TCM) agents), diagnosis (including clinical manifestations, reverse transcription-polymerase chain reaction (RT-PCR), respiratory tract specimens, IgM and IgG antibody tests, chest computed tomography, chest x-ray, and CT features of asymptomatic infections), treatments (including lopinavir-ritonavir, umifenovir, favipiravir, interferon, remdesivir, combination of antiviral drugs, hydroxychloroquine/chloroquine, interleukin-6 inhibitors, interleukin-1 inhibitors, glucocorticoid, qingfei paidu decoction, lianhua qingwen granules/capsules, convalescent plasma, lung transplantation, invasive or noninvasive ventilation, and extracorporeal membrane oxygenation (ECMO)), and discharge management (including discharge criteria and management plan in patients whose RT-PCR retesting shows SARS-CoV-2 positive after discharge). We also created two figures of these recommendations for the implementation purpose. We hope these recommendations can help support healthcare workers caring for COVID-19 patients.
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Quimioprevenção/métodos , Técnicas de Laboratório Clínico/métodos , Infecções por Coronavirus/tratamento farmacológico , Pneumonia Viral/tratamento farmacológico , Adulto , Betacoronavirus , COVID-19 , Teste para COVID-19 , Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/prevenção & controle , Medicina Baseada em Evidências , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pandemias/prevenção & controle , Alta do Paciente/normas , Pneumonia Viral/diagnóstico , Pneumonia Viral/prevenção & controle , Guias de Prática Clínica como Assunto , SARS-CoV-2RESUMO
The novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the cause of a rapidly spreading illness, coronavirus disease 2019 (COVID-19), affecting more than seventeen million people around the world. Diagnosis and treatment guidelines for clinicians caring for patients are needed. In the early stage, we have issued "A rapid advice guideline for the diagnosis and treatment of 2019 novel coronavirus (2019-nCoV) infected pneumonia (standard version)"; now there are many direct evidences emerged and may change some of previous recommendations and it is ripe for develop an evidence-based guideline. We formed a working group of clinical experts and methodologists. The steering group members proposed 29 questions that are relevant to the management of COVID-19 covering the following areas: chemoprophylaxis, diagnosis, treatments, and discharge management. We searched the literature for direct evidence on the management of COVID-19, and assessed its certainty generated recommendations using the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) approach. Recommendations were either strong or weak, or in the form of ungraded consensus-based statement. Finally, we issued 34 statements. Among them, 6 were strong recommendations for, 14 were weak recommendations for, 3 were weak recommendations against and 11 were ungraded consensus-based statement. They covered topics of chemoprophylaxis (including agents and Traditional Chinese Medicine (TCM) agents), diagnosis (including clinical manifestations, reverse transcription-polymerase chain reaction (RT-PCR), respiratory tract specimens, IgM and IgG antibody tests, chest computed tomography, chest x-ray, and CT features of asymptomatic infections), treatments (including lopinavir-ritonavir, umifenovir, favipiravir, interferon, remdesivir, combination of antiviral drugs, hydroxychloroquine/chloroquine, interleukin-6 inhibitors, interleukin-1 inhibitors, glucocorticoid, qingfei paidu decoction, lianhua qingwen granules/capsules, convalescent plasma, lung transplantation, invasive or noninvasive ventilation, and extracorporeal membrane oxygenation (ECMO)), and discharge management (including discharge criteria and management plan in patients whose RT-PCR retesting shows SARS-CoV-2 positive after discharge). We also created two figures of these recommendations for the implementation purpose. We hope these recommendations can help support healthcare workers caring for COVID19 patients
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Humanos , Adulto , Plasma/imunologia , Pneumonia Viral/diagnóstico , Pneumonia Viral/tratamento farmacológico , Cloroquina/uso terapêutico , Infecções por Coronavirus/diagnóstico , Infecções por Coronavirus/tratamento farmacológico , Quimioprevenção/métodos , Receptores de Interleucina-6/uso terapêutico , Antirretrovirais/uso terapêutico , Pandemias/prevenção & controle , Lopinavir/uso terapêutico , Betacoronavirus/efeitos dos fármacos , Hidroxicloroquina/uso terapêutico , Prática Clínica Baseada em Evidências/métodosRESUMO
BACKGROUND: The question of whether the use of dabigatran etexilate is associated with a high risk of myocardial infarction (MI) remains unanswered owing to the lack of critical evidences. METHODS: A comprehensive search of databases (Medline, Embase, Cochrane Library databases, and ClinicalTrials.gov Website) was performed for RCTs that reported MI events and observational nationwide database studies that reported adjusted hazard ratio (HR) with dabigatran treatment. Summary HRs and 95% confidence intervals (95% CI) were calculated using random-effects models. Cumulative meta-analysis was conducted for evaluating the results as a continuum, and subgroup analyses were undertaken on the basis of study type, indication, controls, and dosage. RESULTS: Finally, 24 studies including 588,047 patients (44,856 patients in 14 RCTs and 543,191 patients in 10 observational database studies) met the inclusion criteria, among which 222,352 (37.8%) patients receiving dabigatran and 365,695 (62.2%) patients receiving placebo/other anticoagulants. In comparison to controls, no significant association was detected between the use of dabigatran and the higher risk of MI (HR: 0.97, 95% CI: 0.87-1.06; I2 for heterogeneity: 26.3%, Pâ¯=â¯0.089). The results were consistent across the key subgroups (indication, controls, and dosage, Pinteractionâ¯>â¯0.05 for each), with the exception of study type (RCTs or database studies, Pinteractionâ¯=â¯0.046). Cumulative meta-analysis was not suggestive of a temporal trend in the effect of dabigatran on MI. CONCLUSIONS: This meta-analysis confirms a low risk of MI in patients exposed to dabigatran, which seems to be validated when pooling over 580,000 patients from RCTs and real-world studies.
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Dabigatrana/farmacologia , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos , Infarto do Miocárdio , Medição de Risco/estatística & dados numéricos , Anticoagulantes/farmacologia , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/complicações , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/epidemiologia , Humanos , Infarto do Miocárdio/epidemiologia , Infarto do Miocárdio/etiologia , Estudos Observacionais como Assunto , Ensaios Clínicos Controlados Aleatórios como Assunto , Fatores de RiscoRESUMO
In this study, it was the first time that we simultaneously quantified nimesulide and its possible metabolites M1, M2, M3 and M4 by employing liquid chromatography-tandem mass spectrometry (LC-MS/MS). Nimesulide-d5 was used as internal standard (IS) for validation. Analytes and IS were recovered from human plasma by protein precipitation with acetonitrile. Prepared plasma samples were analyzed under the same LC-MS/MS conditions, and chromatographic separation was realized by using an Ultimate C18 column, with run time being 5min for each sample. Our results showed that various analytes within their concentration ranges could be quantified accurately by using the method. Mean intra- and inter-day accuracies ranged from -4.8% to 4.8% (RE), and intra- and inter-assay precision ≤6.2% (RSD). The following parameters were validated: specificity, recovery, matrix effects, dilution integrity, carry-over, sample stability under a variety of storage and handling conditions (room temperature, freezer, freeze-thaw and post-preparative) and stock solution stability. Pharmacokinetics of nimesulide and its metabolites were calculated based on the analysis of samples collected from twelve Chinese healthy volunteers after single oral dose of 100mg nimesulide tablets. By applying the pharmacokinetic determination into human samples, we preliminarily detected a new metabolite of nimesulide (M4*), and the concentration of M4* was relatively higher in plasma. Furthermore, we predicted part of conceivable metabolism pathway in plasma of after oral administration of 100mg nimesulide tablets. This research provided an experimental basis for further studies on metabolic activation and biotransformation of nimesulide, and for more comprehensive conjecture of its metabolic pathways.
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Anti-Inflamatórios não Esteroides/sangue , Anti-Inflamatórios não Esteroides/metabolismo , Cromatografia Líquida de Alta Pressão/métodos , Sulfonamidas/sangue , Sulfonamidas/metabolismo , Espectrometria de Massas em Tandem/métodos , Administração Oral , Anti-Inflamatórios não Esteroides/administração & dosagem , Feminino , Humanos , Limite de Detecção , Masculino , Sulfonamidas/administração & dosagemRESUMO
The title compound, C(9)H(10)N(4)O(2)S, was prepared by the reaction of 1-(4-nitro-phen-yl)ethanone and thio-semicarbazide in ethanol at 367â K. There are weak inter-molecular N-Hâ¯S and N-Hâ¯O hydrogen-bonding inter-actions in the crystal structure involving the amine and nitrile groups, respectively, as donors.
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The title compound, C(14)H(12)ClNO, was prepared by the reaction of 4-methoxy-aniline and 4-chloro-benzaldehyde in ethanol at 367â K. The mol-ecule is almost planar, with a dihedral angle between the two benzene rings of 9.1â (2)° and an r.m.s. deviation from the mean plane through all non-H atoms in the mol-ecule of 0.167â Å.