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1.
Explor Res Clin Soc Pharm ; 12: 100375, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38145236

RESUMO

Background: The utilization of electronic prescribing is growing, prompted by lockdown measures during the COVID-19 pandemic. However, despite this increasing adoption, there is a notable dearth of consolidated evidence regarding the challenges and opportunities associated with the integration of electronic prescribing systems within the daily clinical practices of community pharmacists. Objective: This paper aims to systematically review the community pharmacists' perspectives on barriers and facilitators to electronic prescribing, addressing the significant need for understanding how electronic prescribing impacts the workflow and decision-making processes of pharmacists, ultimately influencing the quality of patient care. Methods: PubMed, Embase, and Cumulative Index to Nursing and Allied Health Literature (CINAHL) databases were searched from January 1, 2000, to October 25, 2022, using search terms related to electronic prescribing, computerised physician order entry, community/retail pharmacies, and pharmacists. Results: A total of 28 studies were included in the systematic review. In these studies, community pharmacists perceived that design, interoperability, attitude towards e-prescribing technology, information quality, workflow, productivity, and accessible resources facilitated e-prescribing. In addition, the included studies emphasized the importance of technological support for the successful implementation of electronic prescribing systems. The system's design characteristics significantly improve e-prescribing technology's favourable effects. According to our review, it has been proposed that a poorly designed e-prescribing system can have a negative impact on the quality of care, implementation, and user satisfaction. In contrast, a well-designed system can significantly contribute to improvements. Conclusions: The review highlighted that e-prescribing has both barriers and facilitators, with the quality of the system and its implementation influencing these factors. Technical issues and user acceptance (patient/prescribers/pharmacists) can act as barriers or enablers, highlighting the need for comprehensive consideration and monitoring of e-prescribing to identify and address potential issues.

2.
Pharmacy (Basel) ; 11(5)2023 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-37736911

RESUMO

BACKGROUND: Oral mucosal conditions are commonly experienced in the general population and can have a negative impact on one's quality of life. This study evaluated the ability of Australian pharmacists and final-year pharmacy students to recognise and manage these common oral mucosal diseases through the use of case vignettes. METHODS: Australian pharmacists and final-year pharmacy students were invited through social media, university learning management systems, or email to complete an online questionnaire consisting of six case vignettes covering topics relating to common oral mucosal presentations. RESULTS: A total of 65 pharmacists and 78 students completed the questionnaire. More than 50% of the participants reported having seen all types of oral mucosal presentations, except for denture stomatitis, in their practice. The provision of best practice recommendations was reported by only 14%, 15%, 8%, and 6% of the participants for geographic tongue, hairy tongue, angular cheilitis, and denture-associated stomatitis, respectively, whereas 82% offered an appropriate anti-viral treatment for cold sore and 33% provided the best practice recommendations for oral thrush. CONCLUSION: This study emphasised the importance of further developing and integrating best practice oral healthcare training programs specifically tailored to the Australian pharmacy profession.

3.
J Dent ; 137: 104657, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37574105

RESUMO

OBJECTIVES: Given the increasing incidence of oral cancer, it is essential to provide high-risk communities, especially in remote regions, with an affordable, user-friendly tool for visual lesion diagnosis. This proof-of-concept study explored the utility and feasibility of a smartphone application that can photograph and diagnose oral lesions. METHODS: The images of oral lesions with confirmed diagnoses were sourced from oral and maxillofacial textbooks. In total, 342 images were extracted, encompassing lesions from various regions of the oral cavity such as the gingiva, palate, and labial mucosa. The lesions were segregated into three categories: Class 1 represented non-neoplastic lesions, Class 2 included benign neoplasms, and Class 3 contained premalignant/malignant lesions. The images were analysed using MobileNetV3 and EfficientNetV2 models, with the process producing an accuracy curve, confusion matrix, and receiver operating characteristic (ROC) curve. RESULTS: The EfficientNetV2 model showed a steep increase in validation accuracy early in the iterations, plateauing at a score of 0.71. According to the confusion matrix, this model's testing accuracy for diagnosing non-neoplastic and premalignant/malignant lesions was 64% and 80% respectively. Conversely, the MobileNetV3 model exhibited a more gradual increase, reaching a plateau at a validation accuracy of 0.70. The MobileNetV3 model's testing accuracy for diagnosing non-neoplastic and premalignant/malignant lesions, according to the confusion matrix, was 64% and 82% respectively. CONCLUSIONS: Our proof-of-concept study effectively demonstrated the potential accuracy of AI software in distinguishing malignant lesions. This could play a vital role in remote screenings for populations with limited access to dental practitioners. However, the discrepancies between the classification of images and the results of "non-malignant lesions" calls for further refinement of the models and the classification system used. CLINICAL SIGNIFICANCE: The findings of this study indicate that AI software has the potential to aid in the identification or screening of malignant oral lesions. Further improvements are required to enhance accuracy in classifying non-malignant lesions.


Assuntos
Odontólogos , Papel Profissional , Humanos , Redes Neurais de Computação , Curva ROC , Software
4.
J Dent ; 137: 104654, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37574106

RESUMO

OBJECTIVES: Dentists in Australia are the second largest prescriber group, and are generally not formally taught how to prescribe. The objective of this review is to describe the Prescribing Competencies Framework and its relevance to dentistry. DATA: The four-model stage of prescribing by Coombes and colleagues, and the seven competencies within the Prescribing Competencies Framework devised by the Australian National Prescribing Service MedicineWise, are discussed and applied to dentistry. SOURCES AND STUDY SELECTION: Each of the seven competencies are analysed and detailed in the context of clinical dental practice. Competencies 1-5 describe the skillset and tasks required by dentists to safely prescribe, whereas Competencies 6 and 7 describe the clinical environment and recommended resources to support dentists to prescribe safely and effectively. CONCLUSIONS: The Prescribing Competencies Framework provides an overview of safe and effective prescribing. Prescribing is a process, and a separate skillset to clinical dentistry. The process involves information gathering, clinical assessment, effective communication and review of the patient. Access to timely and appropriate resources and relevant electronic sources of health information for clinicians are important to provide the support required for better informed prescribing decisions. The framework describes a patient-centered prescribing process, and ultimately prescribing should be a shared decision between the dentist and the patient. CLINICAL SIGNIFICANCE: Safe and effective prescribing is an integral part of dentistry and dentists are the second largest prescriber group. However, dentists display high rates of inappropriate and unnecessary prescribing, and to minimise errors, the Prescribing Competencies Framework has been established. This article details how the Framework applies to clinical practice dentistry.


Assuntos
Odontologia , Odontólogos , Humanos , Austrália
5.
medRxiv ; 2023 May 16.
Artigo em Inglês | MEDLINE | ID: mdl-37292781

RESUMO

For the 28.2 million people in the world living with HIV/AIDS and receiving antiretroviral therapy, it is crucial to monitor their HIV viral loads with ease. To this end, rapid and portable diagnostic tools that can quantify HIV RNA are critically needed. We report herein a rapid and quantitative digital CRISPR-assisted HIV RNA detection assay that has been implemented within a portable smartphone-based device as a potential solution. Specifically, we first developed a fluorescence-based reverse transcription recombinase polymerase amplification (RT-RPA)-CRISPR assay for isothermally and rapidly detecting HIV RNA at 42 °C in < 30 min. When realized within a commercial stamp-sized digital chip, this assay yields strongly fluorescent digital reaction wells corresponding to HIV RNA. The isothermal reaction condition and the strong fluorescence in the small digital chip unlock compact thermal and optical components in our device, allowing us to engineer a palm-size (70 × 115 × 80 mm) and lightweight (< 0.6 kg) device. Further leveraging the smartphone, we wrote a custom app to control the device, perform the digital assay, and acquire fluorescence images throughout the assay time. We additionally trained and verified a Deep Learning-based algorithm for analyzing fluorescence images and detecting strongly fluorescent digital reaction wells. Using our smartphone-enabled digital CRISPR device, we were able to detect 75 copies of HIV RNA in 15 min and demonstrate the potential of our device toward convenient monitoring of HIV viral loads and combating the HIV/AIDS epidemic.

7.
Anal Chem ; 95(7): 3873-3882, 2023 02 21.
Artigo em Inglês | MEDLINE | ID: mdl-36745596

RESUMO

Developing assays that combine CRISPR/Cas and isothermal nucleic acid amplification has become a burgeoning research area due to the novelty and simplicity of CRISPR/Cas and the potential for point-of-care uses. Most current research explores various two-step assays by appending different CRISPR/Cas effectors to the end of different isothermal nucleic acid amplification methods. However, efforts in integrating both components into more ideal single-step assays are scarce, and poor-performing single-step assays have been reported. Moreover, lack of investigations into CRISPR/Cas in single-step assays results in incomplete understanding. To fill this knowledge gap, we conducted a systematic investigation by developing and comparing assays that share the identical recombinase polymerase amplification (RPA) but differ in CRISPR/Cas12a. We found that the addition of CRISPR/Cas12a indeed unlocks signal amplification but, at the same time, impedes RPA and that CRISPR/Cas12a concentration is a key parameter for attenuating RPA impediment and ensuring assay performance. Accordingly, we found that our protospacer adjacent motif (PAM)-free CRISPR/Cas12a-assisted RPA assay, which only moderately impeded RPA at its optimal CRISPR/Cas12a concentration, outperformed its counterparts in assay design, signal, sensitivity, and speed. We also discovered that a new commercial Cas12a effector could also drive our PAM-free CRISPR/Cas12a-assisted RPA assay and reduce its cost, though simultaneously lowering its signal. Our study and the new insights can be broadly applied to steer and facilitate further advances in CRISPR/Cas-based assays.


Assuntos
Sistemas CRISPR-Cas , Ácidos Nucleicos , Sistemas CRISPR-Cas/genética , Nucleotidiltransferases , Recombinases , Bioensaio , Técnicas de Amplificação de Ácido Nucleico
8.
PLoS One ; 18(2): e0282185, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36848347

RESUMO

This systematic review and meta-analysis aimed to examine more recent data to determine the extent of lingual nerve injury (LNI) following the surgical extraction of mandibular third molars (M3M). A systematic search of three databases [PubMed, Web of Science and OVID] was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The inclusion criteria encompassed studies on patients who underwent surgical M3M extraction using the buccal approach without lingual flap retraction (BA-), buccal approach with lingual flap retraction (BA+), and lingual split technique (LS). The outcome measures expressed in LNI count were converted to risk ratios (RR). Twenty-seven studies were included in the systematic review, nine were eligible for meta-analysis. Combined RR for LNI (BA+ versus BA-) was 4.80 [95% Confidence Interval:3.28-7.02; P<0.00001]. The prevalence of permanent LNI following BA-, BA+ and LS (mean%±SD%) was 0.18±0.38, 0.07±0.21, and 0.28±0.48 respectively. This study concluded that there was an increased risk of temporary LNI following M3M surgical extractions using BA+ and LS. There was insufficient evidence to determine whether there is a significant advantage of BA+ or LS in reducing permanent LNI risk. Operators should use lingual retraction with caution due to the increased temporary LNI risk.


Assuntos
Traumatismos do Nervo Lingual , Nervo Lingual , Humanos , Incidência , Traumatismos do Nervo Lingual/epidemiologia , Traumatismos do Nervo Lingual/etiologia , Dente Serotino/cirurgia , Língua
9.
Eur J Dent Educ ; 27(2): 287-295, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-35412002

RESUMO

INTRODUCTION: Dentists can prescribe medications for prophylactic and therapeutic purposes. In Australia, dental graduates can autonomously practise within the scope of their qualifications without needing to undertake an internship post-graduation. Although previous research has identified knowledge gaps amongst dental students in Australia on pharmacology and pharmacotherapeutic knowledge, there has been no published research that qualitatively highlights dental students' knowledge of medication prescribing in Australia. This study aimed to undertake a qualitative analysis of Western Australian dental students' attitudes towards and knowledge of medication prescribing. METHODS: This qualitative case study design employed semi-structured interviews as means of collecting data. It utilised a purposive sampling in penultimate and final year dental students at the University of Western Australia. RESULTS: Twenty dental students participated in the study. Five key themes were identified in the data: current and previous education, application when delivering pharmacology and pharmacotherapeutics, teaching to ensure patient-centred care, supervision and referral to relevant resources. Participants agreed that having previous knowledge in the area provides students with confidence regarding medication prescribing. Furthermore, students in this study valued having guidance when prescribing medications. CONCLUSIONS: This study highlights the complexity of medication prescribing for dental students. It also highlights their experience with the current pharmacology and pharmacotherapeutics curriculum. All students interviewed valued application-based teaching, making it specific to dentistry. If curriculum were to be redeveloped, considering their perceptions may be a valuable tool.


Assuntos
Educação em Odontologia , Estudantes de Odontologia , Humanos , Austrália Ocidental , Austrália , Currículo
10.
BMC Oral Health ; 22(1): 633, 2022 12 23.
Artigo em Inglês | MEDLINE | ID: mdl-36564792

RESUMO

BACKGROUND: Prescribing medicine is integral to clinical dentistry. Infective endocarditis may be rare but fatal if left untreated. As a result, judicious prescribing of antibiotics should be implemented due to potential. To our knowledge, no Australian study has examined dental students' knowledge and perceptions about antibiotic prophylaxis for dental procedures. METHODS: Australian dental students were invited to undertake the survey comprising case vignettes to investigate their medication knowledge. A total of 117 responses were received. The questions were 12 clinically relevant questions and three perception-based questions. Results were analysed using descriptive statistics as well as the chi-squared test. RESULTS: The 117 respondents had a mean correct response of 7.34 ± 2.64 (range 3-12 out of 12). Out of 117 students, 89 (76%) answered more than half of the questions correctly. Only three students (3%) answered all the questions correctly. Nearly two-thirds felt that they knew about antibiotic prophylaxis used for dental procedures. CONCLUSION: Most respondents answered more than half, but not all, of the clinical questions correctly. It is crucial to highlight that dental student may never receive any more training on antimicrobial stewardship (AMS) at any point in their future careers. It may be ideal that this issue is addressed at the dental school. One way to target this is to potentially nationalised teaching delivery of dental AMS across Australia.


Assuntos
Antibioticoprofilaxia , Endocardite , Humanos , Estudantes de Odontologia , Antibacterianos/uso terapêutico , Odontologia
11.
Anal Chem ; 94(36): 12481-12489, 2022 09 13.
Artigo em Inglês | MEDLINE | ID: mdl-36040305

RESUMO

Many protein biomarkers are present in biofluids at a very low level but may play critical roles in important biological processes. The fact that these low-abundance proteins remain largely unexplored underscores the importance of developing new tools for highly sensitive protein detection. Although digital enzyme-linked immunosorbent assay (ELISA) has demonstrated ultrahigh sensitivity compared with conventional ELISA, the requirement of specialized instruments limits the accessibility and prevents the widespread implementation. On the other hand, proximity ligation assays (PLA) and proximity extension assays (PEA) show sensitive and specific protein detection using regular laboratory setups, but their sensitivity needs to be further improved to match digital ELISA. To achieve highly sensitive protein detection with minimal accessibility limitation, we develop a magnetic bead-based PEA (magPEA), which posts triple epitope recognition requirement and enables extensive washing for improved sensitivity and enhanced specificity. We demonstrate that the incorporation of magnetic beads into PEA workflow facilitates orders of magnitude sensitivity improvement compared with conventional ELISA, homogeneous PEA, and solid-phase PLA and achieves limits of detection close to that of digital ELISA when using IL-6, IL-8, and GM-CSF as validation. Our magPEA provides a simple approach for highly sensitive protein detection that can be readily implemented to other laboratories and will thus ultimately accelerate the study of the low abundance protein biomarkers in the future.


Assuntos
Bioensaio , Proteínas Sanguíneas , Biomarcadores , Ensaio de Imunoadsorção Enzimática , Fenômenos Magnéticos
12.
Int J Pharm Pract ; 30(3): 193-194, 2022 06 25.
Artigo em Inglês | MEDLINE | ID: mdl-35652515
13.
Aust Health Rev ; 46(4): 485-495, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35732307

RESUMO

Objectives Using Google online reviews, this study investigated why patients were satisfied or dissatisfied with their public dental clinic in Victoria, Australia. Methods This mixed methods study gathered Google reviews published by users pre-March, 2021. The reviews were coded and subthemes and major themes were identified. The most common reasons why patients gave reviews were tabulated and stratified according to star rating, remoteness and accessibility index classification, and socio-economic status. Results Of the 522 reviews included in this study, in 317 (60.7%) satisfaction was expressed. Compliments and complaints were documented. A total of 53 subthemes were identified. Major themes included Treatment, Staff, Communication and Professionalism, Patient Factors and Non-Clinical Reasons. From the reviews, more patients were satisfied with general unspecified treatment (n = 195; 14.7%) and dissatisfied with reception staff (n = 64; 4.8%). More reviews were generated by patients who visited clinics in major cities and lower socio-economic areas. Conclusion This study found that most patients expressed satisfaction and identified reasons why patients were satisfied or dissatisfied. Consumer feedback, including compliments and complaints, is an integral aspect of monitoring and improving health service quality. It is important to continue seeking feedback and improve accordingly.


Assuntos
Clínicas Odontológicas , Satisfação do Paciente , Comunicação , Humanos , Qualidade da Assistência à Saúde , Ferramenta de Busca , Vitória
14.
Int J Pharm Pract ; 30(4): 326-331, 2022 Aug 09.
Artigo em Inglês | MEDLINE | ID: mdl-35532327

RESUMO

OBJECTIVES: Pharmacists are known as medicine experts. Dentists can independently prescribe and administer medications related to dental conditions such as antimicrobials, anti-inflammatories and analgesics. However, little is known about pharmacists' knowledge and perceptions of medicines prescribed for dentistry. Therefore, this study aimed to assess community pharmacists' ability to identify the indications for dental prescriptions using hypothetical vignettes. METHODS: Australian community pharmacists were invited through email and social media to undertake a web-based questionnaire consisting of nine case vignettes of dental prescriptions and their indicated uses in dental settings and two perception-based questions. The results were provided as a percentage of the correct answers to the case vignettes. In addition, Pearson chi-square tests were performed to examine associations between categorical variables. KEY FINDINGS: Of the 202 pharmacists who completed the questionnaire, the mean number of correct responses was 5 ± 2 (out of 9). More than three-quarters (78.5%) of pharmacists believed that thorough knowledge of prescriptions for dental ailments was necessary for safe and effective community pharmacy practice. In addition, nearly two-thirds (64.1%) felt confident that they could dispense medicines indicated for dental conditions safely and effectively. CONCLUSIONS: The knowledge demonstrated by participants through correct identification of the indications for dental prescription was less than optimal. Professional development courses for pharmacists in dental ailments could prove beneficial.


Assuntos
Serviços Comunitários de Farmácia , Odontologia , Farmacêuticos , Atitude do Pessoal de Saúde , Austrália , Atenção à Saúde , Prescrições de Medicamentos , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Farmácias , Papel Profissional , Inquéritos e Questionários
15.
Biosens Bioelectron ; 190: 113390, 2021 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-34171821

RESUMO

In the fight against COVID-19, there remains an unmet need for point-of-care (POC) diagnostic testing tools that can rapidly and sensitively detect the causative SARS-CoV-2 virus to control disease transmission and improve patient management. Emerging CRISPR-Cas-assisted SARS-CoV-2 detection assays are viewed as transformative solutions for POC diagnostic testing, but their lack of streamlined sample preparation and full integration within an automated and portable device hamper their potential for POC use. We report herein POC-CRISPR - a single-step CRISPR-Cas-assisted assay that incoporates sample preparation with minimal manual operation via facile magnetic-based nucleic acid concentration and transport. Moreover, POC-CRISPR has been adapted into a compact thermoplastic cartridge within a palm-sized yet fully-integrated and automated device. During analytical evaluation, POC-CRISPR was able detect 1 genome equivalent/µL SARS-CoV-2 RNA from a sample volume of 100 µL in < 30 min. When evaluated with 27 unprocessed clinical nasopharyngeal swab eluates that were pre-typed by standard RT-qPCR (Cq values ranged from 18.3 to 30.2 for the positive samples), POC-CRISPR achieved 27 out of 27 concordance and could detect positive samples with high SARS-CoV-2 loads (Cq < 25) in 20 min.


Assuntos
Técnicas Biossensoriais , COVID-19 , Sistemas CRISPR-Cas/genética , Repetições Palindrômicas Curtas Agrupadas e Regularmente Espaçadas , Humanos , Sistemas Automatizados de Assistência Junto ao Leito , RNA Viral , SARS-CoV-2 , Sensibilidade e Especificidade
16.
Aust Health Rev ; 2021 Jun 23.
Artigo em Inglês | MEDLINE | ID: mdl-34158147

RESUMO

ObjectiveTo date, there has been little research that has comprehensively analysed dental treatment under general anaesthesia (DGA) at Perth Children's Hospital (PCH) for dental emergencies (dental pain and sepsis). This cross-sectional descriptive analysis of the PCH dental department analysed the demographic of children admitted and the type of treatment used, and assessed the cost.MethodsThis was a retrospective descriptive study analysing the dental records of patients ranging from 2 to 16 years of age at PCH in Western Australia. Of the 310 cases randomly selected from the 2018-19 study period, 202 were admitted for DGA. Two outcome measures were derived: cumulative count of treatment mix and cost analysis.ResultsThe mean (±s.d.) age at the time of admission was 6.2±2.6 years and the mean (±s.d.) decayed (d/D), missing, (m/M) and filled (f/F) teeth (dmft/DMFT) was 2.1±0.8. Of the 429 teeth affected, 282 were molars. Treatments were grouped therapeutically; of the 856 treatments performed, 465 were extractions (54%). The total cost, consisting of direct and indirect costs, was A$313823, and equated to an approximate mean (±s.d.) of A$1554±109 per case.ConclusionUntreated dental caries was the most common cause for hospital admission. Most cases presenting at the emergency department were young children (<7 years old) who underwent extractions under DGA.What is known about the topic?The Child Dental Benefits Schedule (CDBS) was introduced to improve access and affordability to oral health care for children without private dental insurance. However, a significant number of children are still being admitted to hospital for emergency dental treatment.What does this paper add?Despite the availability of the CDBS, untreated dental caries remains one of the most common reasons for dental emergency in the PCH.What are the implications for practitioners?Not only are direct costs a burden on the health budget, but indirect and intangible costs also affect children and their families.

17.
Adv Sci (Weinh) ; 8(5): 2003564, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-33717855

RESUMO

The unprecedented demand for rapid diagnostics in response to the COVID-19 pandemic has brought the spotlight onto clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated systems (Cas)-assisted nucleic acid detection assays. Already benefitting from an elegant detection mechanism, fast assay time, and low reaction temperature, these assays can be further advanced via integration with powerful, digital-based detection. Thus motivated, the first digital CRISPR/Cas-assisted assay-coined digitization-enhanced CRISPR/Cas-assisted one-pot virus detection (deCOViD)-is developed and applied toward SARS-CoV-2 detection. deCOViD is realized through tuning and discretizing a one-step, fluorescence-based, CRISPR/Cas12a-assisted reverse transcription recombinase polymerase amplification assay into sub-nanoliter reaction wells within commercially available microfluidic digital chips. The uniformly elevated digital concentrations enable deCOViD to achieve qualitative detection in <15 min and quantitative detection in 30 min with high signal-to-background ratio, broad dynamic range, and high sensitivity-down to 1 genome equivalent (GE) µL-1 of SARS-CoV-2 RNA and 20 GE µL-1 of heat-inactivated SARS-CoV-2, which outstrips its benchtop-based counterpart and represents one of the fastest and most sensitive CRISPR/Cas-assisted SARS-CoV-2 detection to date. Moreover, deCOViD can detect RNA extracts from clinical samples. Taken together, deCOViD opens a new avenue for advancing CRISPR/Cas-assisted assays and combating the COVID-19 pandemic and beyond.

18.
Int Dent J ; 71(4): 283-284, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-33642041
19.
Anal Chem ; 93(4): 2351-2358, 2021 02 02.
Artigo em Inglês | MEDLINE | ID: mdl-33427441

RESUMO

Polymerase chain reaction (PCR) is by far the most commonly used method of nucleic acid amplification and has likewise been employed for a plethora of diagnostic purposes. Nonetheless, multiplexed PCR-based detection schemes have hitherto been largely limited by technical challenges associated with nonspecific interactions and other limitations inherent to traditional fluorescence-based assays. Here, we describe a novel strategy for multiplexed PCR-based analysis called Ligation-eNabled fluorescence-Coding PCR (LiNC PCR) that exponentially enhances the multiplexing capability of standard fluorescence-based PCR assays. The technique relies upon a simple, preliminary ligation reaction in which target DNA sequences are converted to PCR template molecules with distinct endpoint fluorescence signatures. Universal TaqMan probes are used to create target-specific multicolor fluorescence signals that can be readily decoded to identify amplified targets of interest. We demonstrate the LiNC PCR technique by implementing a two-color-based assay for detection of 10 ovarian cancer epigenetic biomarkers at analytical sensitivities as low as 60 template molecules with no detectable target cross-talk. Overall, LiNC PCR provides a simple and inexpensive method for achieving high-dimensional multiplexing that can be implemented in manifold molecular diagnostic applications.


Assuntos
Fluorescência , Ácidos Nucleicos/química , Reação em Cadeia da Polimerase/métodos , Sequência de Bases
20.
Res Social Adm Pharm ; 17(6): 1159-1165, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-32928657

RESUMO

BACKGROUND: Antipsychotic medications can be prescribed in Australia by medical and nurse practitioners under the Pharmaceutical Benefits Scheme (PBS). The current pharmacoepidemiology study aims to determine the dispensing rates of antipsychotic medicines in Australia, and to produce and examine a time-trend of the dispensing patterns of these medicines. METHODS: Dispensing counts of antipsychotic medication from 2006 to 2018 were accessed from the PBS dataset. All of the antipsychotic medicines dispensed were included for time trend analysis. Cumulative dispensing counts and defined daily dose (DDD) per 1000 concessional population days (DPD) were analysed for the purpose of time trend analysis. RESULTS: Sixteen antipsychotic medications were assessed and had a total cumulative dispensing count of 33, 732, 404. Olanzapine had the highest cumulative prescription count and Quetiapine experienced the highest average dispensing count and rate as determined by DPD. Twelve out of the sixteen medications were second-generation antipsychotics (SGAs). Overall, eleven out of the sixteen medications (aripiprazole, asenapine, brexpiprazole, clozapine, flupentixol, lurasidone, olanzapine, paliperidone, quetiapine, ziprasidone, zuclopenthixol) had an increase in both dispensing count and rate, as expressed per DPD. CONCLUSIONS: The current study highlights the increasing prescription rates of SGAs and the stagnation of FGA prescription among Australian health practitioners. This is observed through particularly large increase in the dispensing rates of Olanzapine and Quetiapine. Further interdisciplinary investigation is required to ensure that these medications are being prescribed under the appropriate medical rationale, particularly to groups that are vulnerable to the adverse effects of the medications.


Assuntos
Antipsicóticos , Clozapina , Antipsicóticos/uso terapêutico , Austrália , Humanos , Olanzapina , Farmacoepidemiologia
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