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1.
Opt Express ; 32(6): 9809-9819, 2024 Mar 11.
Artigo em Inglês | MEDLINE | ID: mdl-38571206

RESUMO

Terahertz (THz) continuous wave (CW) spectroscopy systems can offer extremely high spectral resolution over the THz band by photo-mixing high-performance telecommunications-band (1530-1565 nm) lasers. However, typical THz CW detectors in these systems use narrow band-gap photoconductors, which require elaborate material growth and generate relatively large detector noise. Here we demonstrate that two-step photon absorption in a nano-structured low-temperature grown GaAs (LT-GaAs) metasurface which enables switching of photoconductivity within approximately one picosecond. We show that LT-GaAs can be used as an ultrafast photoconductor in CW THz detectors despite having a bandgap twice as large as the telecommunications laser photon energy. The metasurface design harnesses Mie modes in LT GaAs resonators, whereas metallic electrodes of THz detectors can be designed to support an additional photonic mode, which further increases photoconductivity at a desired wavelength.

2.
Cureus ; 16(2): e54131, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38496185

RESUMO

A review of the current literature on preeclampsia (PE) confirms that this pregnancy complication remains a common cause of maternal mortality. Within the last several decades, obstetric and gynecological researchers worldwide have indicated an association between prior abortions and the development of PE. Different studies have debated whether abortion is a protective or risk factor for PE. However, the most current literature demonstrates a stronger likelihood that a positive history of abortions will offer a protective effect against PE. This association has been supported by advancements in the reproductive immunology literature, which states complex fetal and paternal pathological mechanisms help to build maternal immunological tolerance, thus protecting expectant mothers from pregnancy complications. This literature review will compare studies supporting prior abortions offering a protective effect against PE with those stating prior abortions are a risk factor for the development of PE. Additionally, this critical review will discuss the advancements and current understanding of reproductive immunology and how it pertains to this association between positive abortion history and PE.

3.
J Surg Res ; 296: 571-580, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38340491

RESUMO

INTRODUCTION: Lowering opioid prescription doses and quantity decreases the risk of chronic opioid usage. A tool was inserted into the brief operative note for the surgeon to assess the severity of pain associated with the procedure. We studied surgeon adherence to current opioid-prescribing recommendations. METHODS: Retrospective cohort study with 5486 patients were included in the study population. Each patient's prescription was scored yes or no for adherence on total morphine milligram equivalents (MMEs) and days prescribed with the selection in the brief operative note. The entire study population was tested for an increase from the null-hypothesis "benchmark" value of 75% using a one-sided exact binomial test of a single proportion with P < 0.05. This procedure was repeated for subgroups, with P < 0.01. RESULTS: Adherence to guidelines was higher than the 75% benchmark for "total MMEs prescribed" (79.5%; P < 0.001), but lower for "number of days prescribed" (63.5%; P > 0.999). Surgeries with severe predicted pain showed the highest adherence toward total MMEs prescribed at 87.1%, followed by moderate (80.5%) and mild (74.5%). Severe cases also showed the highest adherence in number of days prescribed (92.4%). Adherence to total MMEs prescribed was highest among attending physicians (88.1%) and lowest among residents/fellows (76.6%). CONCLUSIONS: Adherence to current guidelines was 79.5% for MMEs prescribed but only 63.5% for days prescribed. Compliance with guidelines was better for severe procedures than mild or moderate. Differences were seen across surgical departments. While an improvement from previous reports, further improvement is needed to reduce the number of days of opioids prescribed and increase compliance with recommended guidelines.


Assuntos
Analgésicos Opioides , Padrões de Prática Médica , Humanos , Analgésicos Opioides/uso terapêutico , Estudos Retrospectivos , Dor , Hospitais , Dor Pós-Operatória/tratamento farmacológico , Dor Pós-Operatória/etiologia , Dor Pós-Operatória/prevenção & controle
4.
Int J Mol Sci ; 23(17)2022 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-36077376

RESUMO

(1) Background: C1q TNF-related protein 3 (CTRP3) is an adipokine with anti-inflammatory and cardioprotective properties. In our study, we explored changes in serum CTRP3 and its gene expression in epicardial (EAT) and subcutaneous (SAT) adipose tissue in patients with and without coronary artery disease (CAD) and type 2 diabetes mellitus (T2DM) undergoing elective cardiac surgery. (2) Methods: SAT, EAT, and blood samples were collected at the start and end of surgery from 34 patients: (i) 11 without CAD or T2DM, (ii) 14 with CAD and without T2DM, and (iii) 9 with both CAD and T2DM. mRNA levels of CTRP3 were assessed by quantitative reverse transcription PCR. Circulating levels of CTRP3 and other factors were measured using ELISA and Luminex Multiplex commercial kits. (3) Results: Baseline plasma levels of TNF-α and IL6 did not differ among the groups and increased at the end of surgery. Baseline circulating levels of CTRP3 did not differ among the groups and decreased after surgery. In contrast, baseline CTRP3 mRNA levels in EAT were significantly decreased in CAD/T2DM group, while no differences were found for TNF-α and IL6 gene expression. (4) Conclusions: Our data suggest that decreased EAT mRNA levels of CTRP3 could contribute to higher risk of atherosclerosis in patients with CAD and T2DM.


Assuntos
Procedimentos Cirúrgicos Cardíacos , Doença da Artéria Coronariana , Diabetes Mellitus Tipo 2 , Tecido Adiposo/metabolismo , Doença da Artéria Coronariana/complicações , Doença da Artéria Coronariana/genética , Doença da Artéria Coronariana/cirurgia , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/genética , Diabetes Mellitus Tipo 2/cirurgia , Humanos , Interleucina-6/metabolismo , Pericárdio/metabolismo , RNA Mensageiro/metabolismo , Fator de Necrose Tumoral alfa/genética , Fator de Necrose Tumoral alfa/metabolismo
5.
Trials ; 23(1): 673, 2022 Aug 17.
Artigo em Inglês | MEDLINE | ID: mdl-35978336

RESUMO

BACKGROUND: Explanatory trials are designed to assess intervention efficacy under ideal conditions, while pragmatic trials are designed to assess whether research-proven interventions are effective in "real-world" settings without substantial research support. METHODS: We compared two trials (Hyperlink 1 and 3) that tested a pharmacist-led telehealth intervention in adults with uncontrolled hypertension. We applied PRagmatic Explanatory Continuum Indicator Summary-2 (PRECIS-2) scores to describe differences in the way these studies were designed and enrolled study-eligible participants, and the effect of these differences on participant characteristics and adherence to study interventions. RESULTS: PRECIS-2 scores demonstrated that Hyperlink 1 was more explanatory and Hyperlink 3 more pragmatic. Recruitment for Hyperlink 1 was conducted by study staff, and 2.9% of potentially eligible patients enrolled. Enrollees were older, and more likely to be male and White than non-enrollees. Study staff scheduled the initial pharmacist visit and adherence to attending this visit was 98%. Conversely for Hyperlink 3, recruitment was conducted by clinic staff at routine encounters and 81% of eligible patients enrolled. Enrollees were younger, and less likely to be male and White than non-enrollees. Study staff did not assist with scheduling the initial pharmacist visit and adherence to attending this visit was only 27%. Compared to Hyperlink 1, patients in Hyperlink 3 were more likely to be female, and Asian or Black, had lower socioeconomic indicators, and were more likely to have comorbidities. Owing to a lower BP for eligibility in Hyperlink 1 (>140/90 mm Hg) than in Hyperlink 3 (>150/95 mm Hg), mean baseline BP was 148/85 mm Hg in Hyperlink 1 and 158/92 mm Hg in Hyperlink 3. CONCLUSION: The pragmatic design features of Hyperlink 3 substantially increased enrollment of study-eligible patients and of those traditionally under-represented in clinical trials (women, minorities, and patients with less education and lower income), and demonstrated that identification and enrollment of a high proportion of study-eligible subjects could be done by usual primary care clinic staff. However, the trade-off was much lower adherence to the telehealth intervention than in Hyperlink 1, which is likely to reflect uptake under real-word conditions and substantially dilute intervention effect on BP. TRIAL REGISTRATION: The Hyperlink 1 study (NCT00781365) and the Hyperlink 3 study (NCT02996565) are registered at ClinicalTrials.gov.


Assuntos
Hipertensão , Telemedicina , Adulto , Feminino , Humanos , Hipertensão/diagnóstico , Hipertensão/tratamento farmacológico , Masculino , Farmacêuticos , Ensaios Clínicos Pragmáticos como Assunto , Ensaios Clínicos Controlados Aleatórios como Assunto
6.
Contemp Clin Trials ; 121: 106896, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-36029952

RESUMO

BACKGROUND: Hypertension control is falling in the US yet efficacious interventions exist. Poor patient reach has limited the ability of pragmatic trials to demonstrate effectiveness. This paper uses quantitative and qualitative data to understand factors influencing reach in Hyperlink 3, a pragmatic hypertension trial testing an efficacious pharmacist-led Telehealth Care intervention in comparison to a physician-led Clinic-based Care intervention. Referrals to both interventions were ordered by physicians. METHODS: A sequential-explanatory mixed methods approach was used to understand barriers and facilitators to reach. Reach was assessed quantitatively using EHR data, defined as the proportion of eligible patients attending intended follow-up hypertension care and qualitatively, via semi-structured interviews with patients who were and were not reached. Quantitative data were analyzed using descriptive and inferential statistics. Qualitative data were analyzed via combined deductive and inductive content analysis. RESULTS: Of those eligible, 27% of Clinic-based (n = 532/1945) and 21% of Telehealth patients (n = 385/1849) were reached. In both arms, the largest drop was between physician-signed orders and patients attending initial intended follow-up care. Qualitative analyses uncovered patient barriers related to motivation, capability, and opportunity to attend follow-up care. CONCLUSIONS: Although the proportion of eligible patients with signed orders was high in both arms, the proportion ultimately reached was lower. Patients described barriers related to the influence of one's own personal beliefs or priorities, decision making processes, logistics, and patient perceptions on physician involvement on reach. Addressing these barriers in the design of pragmatic interventions is critical for future effectiveness. TRIAL REGISTRATION: NCT02996565.


Assuntos
Hipertensão , Humanos , Hipertensão/tratamento farmacológico , Farmacêuticos
7.
Sex Health ; 19(2): 101-111, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35469591

RESUMO

BACKGROUND: Pre-exposure prophylaxis (PrEP) became available through the Australian Pharmaceutical Benefits Scheme (PBS) on 1 April 2018 for HIV infection prevention in patients ≥18years at medium-to-high HIV risk. The aims were to investigate PrEP utilisation in general practice since PBS listing, and factors associated with discontinuation. METHODS: This longitudinal study included patients aged 18-74years attending general practices participating in MedicineInsight, a large-scale national primary care database of deidentified electronic health records, between October 2017 and September 2019. RESULTS: PrEP utilisation increased 10-fold following PBS listing. On average, patients had 9.7 PrEP prescriptions per year; a medication possession ratio of 80.8%. Of 1552 patients prescribed PrEP from April 2018, most were male (98.3%), aged 18-39years (59.3%), resided in major cities (86.7%) and in the two most socioeconomically advantaged quintiles (70.0%). Almost half (49.1%) of the patients were identified as new to PrEP. At study end, 65.1% were on active PrEP (16.5%, of whom had non-continuous use), 19.2% had discontinued PrEP and 15.7% were lost to follow up. Patients who discontinued were more likely to attend low rather than high PrEP caseload practices (adjusted odds ratio [aOR] 1.7; 95% CI: 1.0-2.8; P =0.047). The odds of non-continuous therapy was 2.9-fold higher in patients with bipolar disorder (aOR 2.89; 95% CI: 1.10-7.6; P =0.045). CONCLUSIONS: Following PBS listing, PrEP utilisation increased and stopping therapy was associated with attending low caseload practices. General practice education, particularly among low caseload practices, could help address these disparities.


Assuntos
Medicina Geral , Infecções por HIV , Profilaxia Pré-Exposição , Humanos , Masculino , Feminino , Infecções por HIV/prevenção & controle , Estudos Longitudinais , Austrália , Homossexualidade Masculina
9.
Pharmacotherapy ; 41(8): 686-699, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-34130357

RESUMO

Cabotegravir/rilpivirine (CAB/RPV) was recently approved by the US Food and Drug Administration (FDA) as the first complete parenteral antiretroviral (ART) regimen for treatment of people living with HIV (PLWH). As a monthly intramuscular (IM) injection, this therapy constitutes a major departure from the traditional paradigm of oral therapy requiring (at least) daily administration that has defined HIV treatment for decades. Composed of a second-generation integrase inhibitor (INSTI) and nonnucleoside reverse transcriptase inhibitor (NNRTI), CAB/RPV has achieved high rates of sustained virologic suppression with a favorable safety profile for treatment-experienced PLWH following oral lead-in (OLI) during several clinical trials. In addition to the clinical benefits of this agent, patient-reported outcomes associated with convenience, confidentiality, and the tolerability of the injections have consistently reflected positive perceptions of CAB/RPV. The novel nature of this therapy in the field of HIV presents logistical challenges. Clinics will need to address barriers related to management of clinic workflow, procurement, reimbursement, and nonadherence. The aim of this review was to summarize the available safety, efficacy, and pharmacokinetic/pharmacodynamic (PK/PD) data of this long-acting (LA) injectable regimen as well as discuss some potential considerations for prescribing and operationalization.


Assuntos
Fármacos Anti-HIV , Combinação de Medicamentos , Infecções por HIV , Rilpivirina , Fármacos Anti-HIV/efeitos adversos , Preparações de Ação Retardada , Infecções por HIV/tratamento farmacológico , Instalações de Saúde , Humanos , Injeções , Rilpivirina/efeitos adversos , Resultado do Tratamento
10.
Am J Health Syst Pharm ; 78(18): 1724-1731, 2021 09 07.
Artigo em Inglês | MEDLINE | ID: mdl-33895789

RESUMO

PURPOSE: Highly effective coronavirus disease 2019 (COVID-19) vaccines have brought hope for ending the pandemic. Unprecedented mass vaccination started first among healthcare workers. The aim of this report is to describe key strategies undertaken by a large hospital pharmacy department to meet the challenges of preparing a large quantity of COVID-19 vaccine doses in a short period of time. SUMMARY: MedStar Washington Hospital Center (MWHC) was in the first group of hospitals in Washington, DC, to receive Pfizer-BioNTech vaccine in December 2020. The pharmacy department faced challenges including stringent vaccine storage requirements, a need for specific equipment and workflow, limited funding, and staffing constraints. The pharmacy department's senior leaders defined pharmacy responsibilities, budgeted for equipment, participated in vaccination center design, and instructed pharmacy informatics personnel. The vaccine coordinators were appointed to oversee all vaccination-related operations. An ultra-low temperature freezer was installed 2 weeks before arrival of the first shipment of vaccine. All pharmacy order entry tools and operating procedures were standardized, and staff training and schedules were finalized by December 15. The first dose of the vaccine was administered on December 16 at the vaccination center. Pharmacy staff members dispensed the vaccine doses and monitored patients. By January 6, 2021, MWHC had vaccinated 3,812 employees with their first vaccine dose, with an average of 228 doses administered daily. CONCLUSION: Key strategies such as systemic coordination, early preparation, detailed planning, operating procedure development, and staff education and engagement proved successful in facilitating preparation of thousands of COVID-19 vaccine doses for hospital employees within a short period of time.


Assuntos
COVID-19 , Farmácia , Centros Médicos Acadêmicos , Vacinas contra COVID-19 , Humanos , Vacinação em Massa , SARS-CoV-2 , Vacinação
11.
J Pharm Pract ; 34(4): 553-557, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31648595

RESUMO

BACKGROUND: Few studies have been conducted investigating the use of bisphosphonates in hypercalcemia of malignancy (HCM) in the setting of renal dysfunction. OBJECTIVE: The primary objective was to compare the incidence of acute kidney injury (AKI) within 7 days of receiving pamidronate for the treatment of HCM with pre-existing renal dysfunction versus normal renal function at the time of pamidronate administration. The secondary objectives explored the effects of pamidronate doses and infusion rates on the safety and efficacy in those with pre-existing renal dysfunction for the treatment of HCM. METHODS: A retrospective chart review was conducted on patients who received pamidronate for the treatment of HCM at a community teaching hospital in Indianapolis, Indiana, from January 1, 2013, to May 31, 2017. RESULTS: A total of 141 pamidronate administrations were included (116 patients had normal baseline renal function, and 25 patients had pre-existing renal dysfunction before pamidronate administration for the treatment of HCM). Two (8%) patients developed AKI in the pre-existing renal dysfunction group, compared with 4 (3.4%) patients in those without pre-existing renal dysfunction (P = .288). For those with pre-existing renal dysfunction, the incidence of AKI did not differ based on the dosage of pamidronate given (P = .762) or infusion rates (P = .373). CONCLUSION: Pamidronate appears to have limited impact on renal function at doses up to 90 mg in the setting of pre-existing renal dysfunction for the treatment of HCM.


Assuntos
Injúria Renal Aguda , Hipercalcemia , Neoplasias , Difosfonatos , Humanos , Indiana , Pamidronato , Estudos Retrospectivos
12.
Surg Laparosc Endosc Percutan Tech ; 30(5): 451-453, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32496346

RESUMO

BACKGROUND: Recently, the laparoscopic or minimally invasive approach has become common practice for planned colorectal malignancies. Its use in the emergency setting is limited by various factors, including resource availability and surgical expertise. However, more recent evidence suggests a laparoscopic approach to colorectal emergencies, which is comparable with laparoscopic routine work, and often promising. In this study, authors have investigated the outcome of the laparoscopic approach in both benign and malignant colorectal emergencies. METHOD: Retrospective analysis of prospectively collected data (theater records, histology database, and discharge records) over the course of 9 years. The standard surgical approach included conventional laparoscopic and single-port technique (single-incision laparoscopic surgery). The outcome variables included in the final analysis were: success of the minimally invasive approach, conversion rate, postoperative complications, return to theater, and mortality. RESULTS: A total of 202 (males, 110 and females, 92) emergency patients with a median age of 59 years underwent surgery between December 2009 and 2019. The mean operating time was 169 minutes and median American Society of Anesthesiology grade III. Single-incision laparoscopic surgery was used in 19 patients (9.4%). The conversion to open surgery was 12.3% (n=25). The majority of them had primary anastomosis (n= 132, 65.3%).The complications from most to least frequent were: CONCLUSION:: The favorable results obtained in this study underline the theme that with the availability of resources and expertise, it is possible to offer minimal invasive approach to emergency colonic pathology.


Assuntos
Neoplasias Colorretais , Laparoscopia , Colectomia , Neoplasias Colorretais/cirurgia , Emergências , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Procedimentos Cirúrgicos Minimamente Invasivos , Estudos Retrospectivos , Resultado do Tratamento
13.
BMC Fam Pract ; 21(1): 32, 2020 02 12.
Artigo em Inglês | MEDLINE | ID: mdl-32050909

RESUMO

BACKGROUND: Among Australians aged 50 and over, an estimated 1 in 4 men and 2 in 5 women will experience a minimal trauma fracture during their remaining lifetime. Effective fracture prevention is hindered by substantial undertreatment, even of patients who clearly warrant pharmacological therapy. Poor adherence to osteoporosis treatment is also a leading cause of repeat fractures and hospitalisation. The aim of this study was to identify current osteoporosis treatment patterns and gaps in practice in Australia, using general practice data, and to explore general practitioners' (GPs') attitudes to osteoporosis treatment and their views on patient factors affecting osteoporosis management. METHODS: The study was conducted in two phases. Phase 1 was a longitudinal retrospective cohort study which utilised data from MedicineInsight - a national general practice data program that extracts longitudinal, de-identified patient data from clinical information systems (CISs) of participating general practices. Phase 2 included semi-structured, in-depth telephone interviews with a sample of MedicineInsight practice GPs. Data were analysed using an inductive thematic analysis method informed by the theory of planned behaviour. RESULTS: A diagnosis of osteoporosis was recorded in 12.4% of patients over the age of 50 years seen in general practice. Of those diagnosed with osteoporosis, almost a quarter were not prescribed osteoporosis medicines. From 2012 to 17, there was a progressive increase in the number of denosumab prescriptions, while prescriptions for bisphosphonates and other osteoporosis medicines decreased. More than 80% of patients who ceased denosumab treatment had no subsequent bisphosphonate prescription recorded. Interviews with GPs revealed beliefs and attitudes that may have influenced their intentions towards prescribing and osteoporosis management. CONCLUSIONS: This study suggests that within the Australian general practice setting, osteoporosis is underdiagnosed and undertreated. In addition, it appears that most patients who ceased denosumab treatment had no record of subsequent antiresorptive therapy, which would place them at risk of further fractures. The study supports the need for the development of clinical education programs addressing GP knowledge gaps and attitudes, and the implementation of specific interventions such as good reminder/recall systems to avoid delays in reviewing and treating patients with osteoporosis.


Assuntos
Atitude do Pessoal de Saúde , Conservadores da Densidade Óssea/uso terapêutico , Denosumab/uso terapêutico , Difosfonatos/uso terapêutico , Clínicos Gerais , Osteoporose/tratamento farmacológico , Fraturas por Osteoporose/prevenção & controle , Padrões de Prática Médica/estatística & dados numéricos , Idoso , Idoso de 80 Anos ou mais , Austrália , Desprescrições , Substituição de Medicamentos , Feminino , Medicina Geral , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Norpregnenos/uso terapêutico , Osteoporose/diagnóstico , Cloridrato de Raloxifeno/uso terapêutico , Estudos Retrospectivos , Teriparatida/uso terapêutico , Tiofenos/uso terapêutico
14.
J Cosmet Laser Ther ; 22(6-8): 232-238, 2020 Nov 16.
Artigo em Inglês | MEDLINE | ID: mdl-33944656

RESUMO

OnabotulinumtoxinA injection can enhance the appearance of the eyes. This study evaluated the lifting effect of onabotulinumtoxinA treatment of the eye area. A retrospective, single-center audit of patients treated for glabellar and crow's feet rhytids was undertaken. Standardized photographs taken before and 2-4 weeks after treatment were assessed. Computer-based measurements were made of the height of the visible superior tarsal plate (STP) and brow (measured from upper eyelid lash edge to eyebrow base) at rest and maximum frown. One hundred patients were included (96 females; mean age: 46.2 ± 8.8 years). Mean onabotulinumtoxinA doses were 14.95 ± 0.61 units (glabella) and 17.83 ± 2.74 units (crow's feet). There were significant post-treatment increases in mean STP height at rest (left side, 0.76 ± 0.99 mm, p = .02; right side, 0.79 ± 0.94 mm, p = .01) and maximum frown (left, 2.25 ± 1.52 mm, p < .0001; right, 1.87 ± 1.34 mm, p < .0001), and mean brow height at rest (left side, 1.54 ± 1.49 mm, p = .0006; right side, 1.47 ± 1.84 mm, p = .0009) and maximum frown (left, 4.37 ± 2.29 mm, p < .0001; right, 4.16 ± 1.88 mm, p < .0001). OnabotulinumtoxinA injection is effective for elevating brow position and increasing STP show.


Assuntos
Toxinas Botulínicas Tipo A , Técnicas Cosméticas , Fármacos Neuromusculares , Envelhecimento da Pele , Adulto , Toxinas Botulínicas Tipo A/uso terapêutico , Feminino , Humanos , Remoção , Pessoa de Meia-Idade , Fármacos Neuromusculares/uso terapêutico , Estudos Retrospectivos
15.
PLoS One ; 14(10): e0223224, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31596867

RESUMO

BACKGROUND: Non-AIDS-related mortality rates among HIV-infected patients still exceed those of their uninfected peers. A major driver of this excess mortality is a higher risk of non-infectious comorbidities, including cardiovascular disease, chronic kidney disease, type 2 diabetes mellitus, osteoporosis and cancer. The prevalence of mental illness and other chronic non-infectious comorbidities is identified as a primary concern of antiretroviral prescribers in Australia. METHODS: We conducted a cross-sectional, observational study using data from MedicineInsight, a large-scale Australian primary care database comprising longitudinal data from electronic clinical information systems. The HIV-infected cohort included all men with a recorded diagnosis of HIV. The non-HIV-infected cohort comprised all other men from the same practices. The prevalence and risk of cardiovascular disease, chronic kidney disease, type 2 diabetes mellitus, osteoporosis, cancer, anxiety and depression were compared between the groups. RESULTS: We included 2,406 HIV-infected males and 648,205 males with no record of HIV diagnosis attending primary care in this study. HIV-infected men were less socioeconomically disadvantaged and more urban-dwelling than men in the primary care cohort. We found that HIV-infected men attending primary care in Australia are at increased risk of chronic kidney disease, cancer, osteoporosis, anxiety and depression. There appears to be a risk of premature onset of cardiovascular disease, osteoporosis and cancer among younger HIV-infected patients. There is a high prevalence of anxiety and depression among HIV-infected men. CONCLUSIONS: Increased prevalence of non-infectious comorbidities among HIV-infected men has broad implications for the effective management of those with these chronic conditions. Education to raise awareness among both HIV-infected men and their care providers, together with a greater focus on risk reduction, monitoring and preventive care, may be effective strategies in primary healthcare settings to further narrow the gap in health outcomes between people living with HIV and their uninfected counterparts.


Assuntos
Medicina Geral , Infecções por HIV/epidemiologia , Adolescente , Adulto , Idoso , Austrália/epidemiologia , Comorbidade , Humanos , Masculino , Pessoa de Meia-Idade , Razão de Chances , Prevalência , Fatores de Risco , Adulto Jovem
17.
Nat Commun ; 9(1): 4402, 2018 10 18.
Artigo em Inglês | MEDLINE | ID: mdl-30337537

RESUMO

The original version of this Article contained an error in Figure 1b, where the blue '(ZIF-4-Zn)0.5 (ZIF-62)0.5 blend' data curve was omitted from the enthalpy response plot. This has now been corrected in both the PDF and HTML versions of the Article.

18.
Molecules ; 23(9)2018 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-30181492

RESUMO

Cancer stem cells (CSCs) are thought of as a clinically pertinent subpopulation of tumors, partly responsible for cancer relapse and metastasis. Research programs aimed at discovering anti-CSC agents have largely focused on biologics and purely organic molecules. Recently, we showed that a family of redox-active copper(II) complexes with phenanthroline-based ligands and nonsteroidal anti-inflammatory drugs (NSAIDs) such as indomethacin, are capable of potently and selectively killing breast CSCs. Herein we present analogous redox-inactive, zinc(II)-phenanthroline-indomethacin complexes with the ability to kill breast CSCs and bulk breast cancer cells with equal potency (in the submicro- or micromolar range). A single dose of the zinc(II) complexes could theoretically be administered to eliminate whole tumor populations. Excitingly, some of the zinc(II) complexes decrease the growth and viability of mammospheres to a comparable or higher degree than salinomycin, a compound known to effectively kill breast CSCs. As far as we are aware this is the first report to examine the anti-breast CSC activity of zinc(II)-containing compounds.


Assuntos
Neoplasias da Mama/patologia , Indometacina/farmacologia , Células-Tronco Neoplásicas/patologia , Piridinas/farmacologia , Zinco/farmacologia , Sobrevivência Celular/efeitos dos fármacos , Feminino , Células HEK293 , Humanos , Concentração Inibidora 50 , Células-Tronco Neoplásicas/efeitos dos fármacos , Esferoides Celulares/efeitos dos fármacos , Esferoides Celulares/patologia , Células Tumorais Cultivadas
19.
Nat Commun ; 9(1): 2135, 2018 06 15.
Artigo em Inglês | MEDLINE | ID: mdl-29907760

RESUMO

The liquid and glass states of metal-organic frameworks (MOFs) have recently become of interest due to the potential for liquid-phase separations and ion transport, alongside the fundamental nature of the latter as a new, fourth category of melt-quenched glass. Here we show that the MOF liquid state can be blended with another MOF component, resulting in a domain structured MOF glass with a single, tailorable glass transition. Intra-domain connectivity and short range order is confirmed by nuclear magnetic resonance spectroscopy and pair distribution function measurements. The interfacial binding between MOF domains in the glass state is evidenced by electron tomography, and the relationship between domain size and Tg investigated. Nanoindentation experiments are also performed to place this new class of MOF materials into context with organic blends and inorganic alloys.

20.
Psychiatr Q ; 88(3): 545-552, 2017 09.
Artigo em Inglês | MEDLINE | ID: mdl-27678498

RESUMO

People with schizophrenia are 3-4 times more likely to die from cardiovascular disease than the general population. Clozapine (CLZ) is the gold standard of treatment for refractory schizophrenia. It has been associated with tachycardia and recent evidence shows individuals prescribed CLZ may develop blood pressure (BP) elevation and hypertension. The purpose of this study was to examine the effects of CLZ on BP and heart rate (HR). This was a retrospective chart review of patients 18-75 years old with a DSM IV diagnosis of Schizophrenia or Schizoaffective disorder. Primary outcomes were systolic blood pressure (SBP), diastolic blood pressure (DBP), and HR measured 12 weeks before and 24 weeks during CLZ treatment. Eighteen patient records were included in this study. The mean stabilized CLZ dose was 441.7 ± 171.8 mg/day. DBP (t = 1.02, df = 79.5, = 2.00, 0.049) and HR (t = 1.32, df = 355  = -4.61, < 0.0001) were significantly higher after CLZ initiation. A trend was noted for increase in SBP (p = 0.071). 22 % of patients met criteria for hypertension before CLZ and 67 % during CLZ treatment (Chi Square = 6.25, df = 1, p = 0.0124). No significant changes in weight or renal function occured during CLZ treatment. No patients had evidence of cardiomyopathy. The data suggest CLZ may be associated with a rise in BP and HR. The results of this study support previous literature that found an increase in SBP/DBP regardless of CLZ dose, occurring early in treatment. Due to high risk of cardiovascular morbidity and mortality, more work is needed to determine risk factors and understand the mechanism of action that may cause this side effect.


Assuntos
Antipsicóticos/efeitos adversos , Pressão Sanguínea/efeitos dos fármacos , Clozapina/efeitos adversos , Frequência Cardíaca/efeitos dos fármacos , Hipertensão/induzido quimicamente , Esquizofrenia/tratamento farmacológico , Adolescente , Adulto , Idoso , Antipsicóticos/administração & dosagem , Clozapina/administração & dosagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Taquicardia/induzido quimicamente , Adulto Jovem
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