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1.
J Allergy Clin Immunol ; 152(6): 1493-1519, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37678572

RESUMO

BACKGROUND: Atopic dermatitis (AD) is a common skin condition with multiple topical treatment options, but uncertain comparative effects. OBJECTIVE: We sought to systematically synthesize the benefits and harms of AD prescription topical treatments. METHODS: For the 2023 American Academy of Allergy, Asthma & Immunology and American College of Allergy, Asthma, and Immunology Joint Task Force on Practice Parameters AD guidelines, we searched MEDLINE, EMBASE, CENTRAL, CINAHL, LILACS, ICTRP, and GREAT databases to September 5, 2022, for randomized trials addressing AD topical treatments. Paired reviewers independently screened records, extracted data, and assessed risk of bias. Random-effects network meta-analyses addressed AD severity, itch, sleep, AD-related quality of life, flares, and harms. The Grading of Recommendations Assessment, Development and Evaluation approach informed certainty of evidence ratings. We classified topical corticosteroids (TCS) using 7 groups-group 1 being most potent. This review is registered in the Open Science Framework (https://osf.io/q5m6s). RESULTS: The 219 included trials (43,123 patients) evaluated 68 interventions. With high-certainty evidence, pimecrolimus improved 6 of 7 outcomes-among the best for 2; high-dose tacrolimus (0.1%) improved 5-among the best for 2; low-dose tacrolimus (0.03%) improved 5-among the best for 1. With moderate- to high-certainty evidence, group 5 TCS improved 6-among the best for 3; group 4 TCS and delgocitinib improved 4-among the best for 2; ruxolitinib improved 4-among the best for 1; group 1 TCS improved 3-among the best for 2. These interventions did not increase harm. Crisaborole and difamilast were intermediately effective, but with uncertain harm. Topical antibiotics alone or in combination may be among the least effective. To maintain AD control, group 5 TCS were among the most effective, followed by tacrolimus and pimecrolimus. CONCLUSIONS: For individuals with AD, pimecrolimus, tacrolimus, and moderate-potency TCS are among the most effective in improving and maintaining multiple AD outcomes. Topical antibiotics may be among the least effective.


Assuntos
Asma , Dermatite Atópica , Fármacos Dermatológicos , Eczema , Humanos , Dermatite Atópica/tratamento farmacológico , Tacrolimo/uso terapêutico , Metanálise em Rede , Qualidade de Vida , Ensaios Clínicos Controlados Aleatórios como Assunto , Fármacos Dermatológicos/uso terapêutico , Asma/tratamento farmacológico , Antibacterianos/uso terapêutico
2.
J Allergy Clin Immunol ; 152(6): 1470-1492, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37678577

RESUMO

BACKGROUND: Atopic dermatitis (AD) is an inflammatory skin condition with multiple systemic treatments and uncertainty regarding their comparative impact on AD outcomes. OBJECTIVE: We sought to systematically synthesize the benefits and harms of AD systemic treatments. METHODS: For the 2023 American Academy of Allergy, Asthma & Immunology and American College of Allergy, Asthma, and Immunology Joint Task Force on Practice Parameters AD guidelines, we searched MEDLINE, EMBASE, CENTRAL, Web of Science, and GREAT databases from inception to November 29, 2022, for randomized trials addressing systemic treatments and phototherapy for AD. Paired reviewers independently screened records, extracted data, and assessed risk of bias. Random-effects network meta-analyses addressed AD severity, itch, sleep, AD-related quality of life, flares, and harms. The Grading of Recommendations Assessment, Development and Evaluation approach informed certainty of evidence ratings. This review is registered in the Open Science Framework (https://osf.io/e5sna). RESULTS: The 149 included trials (28,686 patients with moderate-to-severe AD) evaluated 75 interventions. With high-certainty evidence, high-dose upadacitinib was among the most effective for 5 of 6 patient-important outcomes; high-dose abrocitinib and low-dose upadacitinib were among the most effective for 2 outcomes. These Janus kinase inhibitors were among the most harmful in increasing adverse events. With high-certainty evidence, dupilumab, lebrikizumab, and tralokinumab were of intermediate effectiveness and among the safest, modestly increasing conjunctivitis. Low-dose baricitinib was among the least effective. Efficacy and safety of azathioprine, oral corticosteroids, cyclosporine, methotrexate, mycophenolate, phototherapy, and many novel agents are less certain. CONCLUSIONS: Among individuals with moderate-to-severe AD, high-certainty evidence demonstrates that high-dose upadacitinib is among the most effective in addressing multiple patient-important outcomes, but also is among the most harmful. High-dose abrocitinib and low-dose upadacitinib are effective, but also among the most harmful. Dupilumab, lebrikizumab, and tralokinumab are of intermediate effectiveness and have favorable safety.


Assuntos
Asma , Dermatite Atópica , Eczema , Humanos , Dermatite Atópica/tratamento farmacológico , Metanálise em Rede , Qualidade de Vida , Ensaios Clínicos Controlados Aleatórios como Assunto , Resultado do Tratamento
4.
Vaccine ; 41(41): 5987-5993, 2023 09 22.
Artigo em Inglês | MEDLINE | ID: mdl-37633752

RESUMO

BACKGROUND: The rate of anaphylaxis following COVID-19 vaccinations is estimated to be 2-11 cases per million doses administered. However, adrenaline is occasionally used in individuals who are later diagnosed with immunisation stress-related responses, as their initial presenting signs and symptoms can appear similar to that of anaphylaxis. This study aims to describe the clinical profile of individuals who had received adrenaline following a COVID-19 vaccine and their subsequent revaccination outcomes. METHODS: We examined notifications of cases who had received adrenaline following a COVID-19 vaccine in New South Wales, Australia. The cases were classified into Brighton Collaboration Case Definition (BCCD) for anaphylaxis, their clinical presentation, management and subsequent revaccination outcomes were compared. RESULTS: From 22 February 2021 to 30 September 2021, there were 222 cases where adrenaline was administered. Of these, 32 (14 %) fulfilled Level 1 BCCD, 59 (27%) Level 2, 2 (1%) Level 3, 97 (44%) Level 4 and 32 (14 %) Level 5. The most commonly reported symptoms were sensation of throat closure (n = 116, 52%), difficulty breathing (n = 82, 37%) and nausea (n = 55, 25 %). Of the 176 (79%) individuals who proceeded to further vaccination, 89 (51%) received the same vaccine formulation and only 14 (8%) experienced another allergic adverse event with 9 (5%) receiving adrenaline. CONCLUSION: Less than one in five individuals who received adrenaline met Level 1 BCCD criteria for anaphylaxis. Many reactions that were treated with adrenaline had little to no diagnostic certainty of anaphylaxis and in such cases repeat vaccination had a high likelihood of being tolerated. Increased awareness and education on objective signs and symptoms of anaphylaxis is required to ensure appropriate use of adrenaline.


Assuntos
Anafilaxia , Vacinas contra COVID-19 , COVID-19 , Humanos , Anafilaxia/induzido quimicamente , Anafilaxia/epidemiologia , Austrália/epidemiologia , Vacinas contra COVID-19/efeitos adversos , Epinefrina/uso terapêutico , Imunização Secundária , Estudos Retrospectivos , Vacinação/efeitos adversos
5.
Cureus ; 15(6): e40877, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37492839

RESUMO

An accurate and timely diagnosis of dumping syndrome after gastric and oesophageal surgery is often difficult. A delay in making this diagnosis and instituting therapy can result in significant morbidity and avoidable complications. As bariatric surgery becomes more prevalent, the importance of a timely diagnosis of dumping syndrome is increasing. We present a case of a 77-year-old man who was admitted into the intensive care unit with a reduced conscious state secondary to hypoglycemia. The patient was subsequently diagnosed with late dumping syndrome in the context of an Ivor Lewis procedure seven years prior. Despite having a history of recurrent neuroglycopenic symptoms, there was a delay in diagnosis as dumping syndrome had not previously been considered until this admission. After confirmation of the diagnosis, the patient was commenced on dietary adjustments and acarbose, with a resolution of post-prandial hypoglycaemia. The authors discuss dietary and pharmacological therapy to manage hypoglycaemia associated with dumping syndrome.

6.
Glob Implement Res Appl ; 3(2): 162-172, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37304057

RESUMO

The aim of the BETTER WISE intervention is to address cancer and chronic disease prevention and screening (CCDPS) and lifestyle risks in patients aged 40-65. The purpose of this qualitative study is to better understand facilitators and barriers to the implementation of the intervention. Patients were invited for a 1-h visit with a prevention practitioner (PP), a member of a primary care team, with specific skills in prevention, screening, and cancer survivorship. We collected and analyzed data from 48 key informant interviews and 17 focus groups conducted with 132 primary care providers and from 585 patient feedback forms. We analyzed all qualitative data using a constant comparative method informed by grounded theory and then employed the Consolidated Framework for Implementation Research (CFIR) in a second round of coding. The following key elements were identified: (1) Intervention characteristics-relative advantage and adaptability; (2) Outer setting-PPs compensating for increased patient needs and decreased resources; (3) Characteristics of individuals-PPs (patients and physicians described PPs as compassionate, knowledgeable, and helpful); (4) Inner setting-network and communication (collaboration and support in teams or lack thereof); and (5) Process-executing the implementation (pandemic-related issues hindered execution, but PPs adapted to challenges). This study identified key elements that facilitated or hindered the implementation of BETTER WISE. Despite the interruption caused by the COVID-19 pandemic, the BETTER WISE intervention continued, driven by the PPs and their strong relationships with their patients, other primary care providers, and the BETTER WISE team.

8.
J Paediatr Child Health ; 59(8): 992-997, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37246758

RESUMO

AIM: Coeliac disease (CD) can remain undiagnosed due to absent/atypical symptoms. We evaluated screening for CD in undifferentiated paediatric patients in the emergency department (ED). METHODS: Subjects were all patients presenting to a children's hospital ED during the study period who had blood taken. Plasma remaining after routine care was tested for tissue transglutaminase IgA (tTG IgA) and deamidated gliadin IgG (DGP IgG) antibodies. Patients with positive results were counselled and offered confirmatory testing, then gastroenterology review if warranted. RESULTS: An initial positive result for either DGP IgG or tTG IgA was found in 4.2% (44/1055). There was a normalisation of 76% (19/25) of positive DGP IgG and 44% (4/9) of tTG IgA results on repeat testing, which was not available in 27% (12/44). The prevalence of biopsy-confirmed CD was 0.7% (7/1055), including two new diagnoses and five subjects with known CD. Three likely cases could not be confirmed. All confirmed and likely cases were >10 years old. In children >10 years old, the prevalence of either biopsy-confirmed or likely CD was 3.3% (10/302). A family history of CD, growth concerns, recurrent abdominal pain and lethargy were associated with persistence of positive tests. CONCLUSION: Opportunistic testing for CD in ED requires further investigation as a CD screening strategy. Our results suggest optimal screening in this setting should be by initially testing for tTG IgA and total IgA in children >10 years old (minimising transiently positive tests). Transiently positive coeliac antibodies may also warrant further investigation as a predictor of future CD.


Assuntos
Doença Celíaca , Humanos , Criança , Doença Celíaca/diagnóstico , Transglutaminases , Imunoglobulina A , Autoanticorpos , Gliadina , Imunoglobulina G , Sensibilidade e Especificidade
9.
J Exp Med ; 220(6)2023 06 05.
Artigo em Inglês | MEDLINE | ID: mdl-36943234

RESUMO

Heterozygous loss-of-function (LOF) mutations in PIK3R1 (encoding phosphatidylinositol 3-kinase [PI3K] regulatory subunits) cause activated PI3Kδ syndrome 2 (APDS2), which has a similar clinical profile to APDS1, caused by heterozygous gain-of-function (GOF) mutations in PIK3CD (encoding the PI3K p110δ catalytic subunit). While several studies have established how PIK3CD GOF leads to immune dysregulation, less is known about how PIK3R1 LOF mutations alter cellular function. By studying a novel CRISPR/Cas9 mouse model and patients' immune cells, we determined how PIK3R1 LOF alters cellular function. We observed some overlap in cellular defects in APDS1 and APDS2, including decreased intrinsic B cell class switching and defective Tfh cell function. However, we also identified unique APDS2 phenotypes including defective expansion and affinity maturation of Pik3r1 LOF B cells following immunization, and decreased survival of Pik3r1 LOF pups. Further, we observed clear differences in the way Pik3r1 LOF and Pik3cd GOF altered signaling. Together these results demonstrate crucial differences between these two genetic etiologies.


Assuntos
Síndromes de Imunodeficiência , Fosfatidilinositol 3-Quinases , Animais , Camundongos , Humanos , Classe I de Fosfatidilinositol 3-Quinases/genética , Fosfatidilinositol 3-Quinases/genética , Mutação/genética , Linfócitos B , Síndrome , Diferenciação Celular/genética , Síndromes de Imunodeficiência/genética , Classe Ia de Fosfatidilinositol 3-Quinase/genética
10.
Vaccine ; 41(1): 85-91, 2023 01 04.
Artigo em Inglês | MEDLINE | ID: mdl-36400662

RESUMO

BACKGROUND: We aimed to assess the direct protective effect of 13 valent pneumococcal conjugate vaccine (13vPCV) against invasive pneumococcal pneumonia (IPP; including pneumonia and empyema) in children using a nation-wide case-control study across 11 paediatric tertiary hospitals in Australia. METHODS: Children < 18 years old admitted with pneumonia were eligible for enrolment. IPP was defined as Streptococcus pneumoniae (SP) cultured or detected by polymerase chain reaction (PCR) from blood or pleural fluid. Causative SP serotype (ST) was determined from blood or pleural fluid SP isolates by molecular methods in PCR positive specimens or else inferred from nasopharyngeal isolates. For each IPP case, 20 population controls matched by age and socio-economic status were sampled from the Australian Immunisation Register. Conditional logistic regression was used to estimate the adjusted odds ratio (aOR) of being fully vaccinated with 13vPCV (≥3 doses versus < 3 doses) among IPP cases compared to controls, adjusted for sex and Indigenous status. RESULTS: From February 2015 to September 2018, we enrolled 1,168 children with pneumonia; 779 were 13vPCV-eligible and were individually matched to 15,580 controls. SP was confirmed in 195 IPP cases, 181 of whom had empyema. ST3 and ST19A were identified in 52% (102/195) and 11% (21/195) of IPP cases respectively. The aOR of being fully vaccinated with 13vPCV was 0.8 (95% CI 0.6-1.0) among IPP cases compared to matched controls. CONCLUSION: We failed to identify a strong direct protective effect of 13vPCV against IPP among Australian children, where disease was largely driven by ST3.


Assuntos
Infecções Pneumocócicas , Pneumonia Pneumocócica , Criança , Humanos , Lactente , Adolescente , Pneumonia Pneumocócica/epidemiologia , Pneumonia Pneumocócica/prevenção & controle , Infecções Pneumocócicas/epidemiologia , Infecções Pneumocócicas/prevenção & controle , Estudos de Casos e Controles , Austrália/epidemiologia , Vacinas Pneumocócicas , Streptococcus pneumoniae , Vacinas Conjugadas , Sorogrupo
11.
Lancet Child Adolesc Health ; 7(1): 13-25, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36370744

RESUMO

BACKGROUND: Atopic dermatitis is a prevalent condition in children and can be effectively managed with medications such as topical calcineurin inhibitors (pimecrolimus or tacrolimus). A key unresolved safety concern is whether use of topical calcineurin inhibitors is associated with cancer. We systematically reviewed the risk of cancer in patients with atopic dermatitis exposed to topical calcineurin inhibitors. METHODS: As part of the 2022 American Academy of Allergy, Asthma and Immunology and American College of Allergy, Asthma and Immunology Joint Task Force on Practice Parameters atopic dermatitis guidelines, we searched MEDLINE, Embase, the Latin American and Caribbean Health Sciences Literature database, the Índice Bibliográfico Espanhol de Ciências da Saúde database, the Global Resource of Eczema Trials database, WHO's International Clinical Trials Registry Platform, the US Food and Drug Administration database, the European Medicines Agency database, company registers, and relevant citations from inception to June 6, 2022. We included randomised controlled trials and comparative and non-comparative non-randomised studies in any language addressing cancer risk in patients with atopic dermatitis using topical calcineurin inhibitors. We excluded split-body studies and studies with less than 3 weeks of follow-up. Paired reviewers independently screened records, extracted data, and assessed risk of bias in duplicate. We used Bayesian models to estimate the probability for cancer due to topical calcineurin inhibitor exposure and the GRADE approach to determine the certainty of the evidence. Patients, advocacy groups, and care providers set a priori thresholds of important effects. This study is registered with Open Science Framework, https://osf.io/v4bfc. FINDINGS: We identified and analysed 110 unique studies (52 randomised controlled trials and 69 non-randomised studies [11 were non-randomised study extensions of randomised controlled trials]) including 3·4 million patients followed up for a mean of 11 months (range 0·7-120). The absolute risk of any cancer with topical calcineurin inhibitor exposure was not different from controls (absolute risk 4·70 per 1000 with topical calcineurin inhibitors vs 4·56 per 1000 without; odds ratio 1·03 [95% credible interval 0·94-1·11]; moderate certainty). For all age groups and using data from observational studies and randomised controlled trials, the use of pimecrolimus (OR 1·05 [95% credible interval 0·94-1·15]) or tacrolimus (0·99 [0·89-1·09]) is likely to have had little to no association with cancer compared with no topical calcineurin inhibitor exposure. For pimecrolimus versus tacrolimus, the finding was similar (0·95 [95% credible interval 0·83-1·07]). Findings were similar in infants, children, and adults, and robust to trial sequential, subgroup, and sensitivity analyses. INTERPRETATION: Among individuals with atopic dermatitis, moderate-certainty evidence shows that topical calcineurin inhibitors do not increase the risk of cancer. These findings support the safe use of topical calcineurin inhibitors in the optimal treatment of patients with atopic dermatitis. FUNDING: American Academy of Allergy, Asthma and Immunology and American College of Allergy, Asthma and Immunology via the Joint Task Force on Practice Parameters.


Assuntos
Asma , Dermatite Atópica , Hipersensibilidade , Neoplasias , Adulto , Criança , Humanos , Lactente , Teorema de Bayes , Inibidores de Calcineurina/efeitos adversos , Dermatite Atópica/tratamento farmacológico , Dermatite Atópica/epidemiologia , Neoplasias/tratamento farmacológico , Tacrolimo/efeitos adversos , Ensaios Clínicos Controlados como Assunto
12.
J Allergy Clin Immunol ; 151(1): 147-158, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36191689

RESUMO

BACKGROUND: Atopic dermatitis (AD, eczema) is driven by a combination of skin barrier defects, immune dysregulation, and extrinsic stimuli such as allergens, irritants, and microbes. The role of environmental allergens (aeroallergens) in triggering AD remains unclear. OBJECTIVE: We systematically synthesized evidence regarding the benefits and harms of allergen immunotherapy (AIT) for AD. METHODS: As part of the 2022 American Academy of Allergy, Asthma & Immunology/American College of Allergy, Asthma and Immunology Joint Task Force on Practice Parameters AD Guideline update, we searched the MEDLINE, EMBASE, CENTRAL, CINAHL, LILACS, Global Resource for Eczema Trials, and Web of Science databases from inception to December 2021 for randomized controlled trials comparing subcutaneous immunotherapy (SCIT), sublingual immunotherapy (SLIT), and/or no AIT (placebo or standard care) for guideline panel-defined patient-important outcomes: AD severity, itch, AD-related quality of life (QoL), flares, and adverse events. Raters independently screened, extracted data, and assessed risk of bias in duplicate. We synthesized intervention effects using frequentist and Bayesian random-effects models. The GRADE approach determined the quality of evidence. RESULTS: Twenty-three randomized controlled trials including 1957 adult and pediatric patients sensitized primarily to house dust mite showed that add-on SCIT and SLIT have similar relative and absolute effects and likely result in important improvements in AD severity, defined as a 50% reduction in SCORing Atopic Dermatitis (risk ratio [95% confidence interval] 1.53 [1.31-1.78]; 26% vs 40%, absolute difference 14%) and QoL, defined as an improvement in Dermatology Life Quality Index by 4 points or more (risk ratio [95% confidence interval] 1.44 [1.03-2.01]; 39% vs 56%, absolute difference 17%; both outcomes moderate certainty). Both routes of AIT increased adverse events (risk ratio [95% confidence interval] 1.61 [1.44-1.79]; 66% with SCIT vs 41% with placebo; 13% with SLIT vs 8% with placebo; high certainty). AIT's effect on sleep disturbance and eczema flares was very uncertain. Subgroup and sensitivity analyses were consistent with the main findings. CONCLUSIONS: SCIT and SLIT to aeroallergens, particularly house dust mite, can similarly and importantly improve AD severity and QoL. SCIT increases adverse effects more than SLIT. These findings support a multidisciplinary and shared decision-making approach to optimally managing AD.


Assuntos
Asma , Dermatite Atópica , Eczema , Hipersensibilidade , Imunoterapia Sublingual , Adulto , Animais , Humanos , Criança , Dermatite Atópica/tratamento farmacológico , Qualidade de Vida , Teorema de Bayes , Dessensibilização Imunológica/efeitos adversos , Pyroglyphidae , Hipersensibilidade/etiologia , Asma/tratamento farmacológico , Alérgenos/uso terapêutico , Imunoterapia Sublingual/efeitos adversos , Dermatophagoides pteronyssinus
13.
J Med Chem ; 65(20): 14121-14143, 2022 10 27.
Artigo em Inglês | MEDLINE | ID: mdl-36216349

RESUMO

Plasmepsin X (PMX) is an essential aspartyl protease controlling malaria parasite egress and invasion of erythrocytes, development of functional liver merozoites (prophylactic activity), and blocking transmission to mosquitoes, making it a potential multistage drug target. We report the optimization of an aspartyl protease binding scaffold and the discovery of potent, orally active PMX inhibitors with in vivo antimalarial efficacy. Incorporation of safety evaluation early in the characterization of PMX inhibitors precluded compounds with a long human half-life (t1/2) to be developed. Optimization focused on improving the off-target safety profile led to the identification of UCB7362 that had an improved in vitro and in vivo safety profile but a shorter predicted human t1/2. UCB7362 is estimated to achieve 9 log 10 unit reduction in asexual blood-stage parasites with once-daily dosing of 50 mg for 7 days. This work demonstrates the potential to deliver PMX inhibitors with in vivo efficacy to treat malaria.


Assuntos
Antimaláricos , Antagonistas do Ácido Fólico , Malária , Animais , Humanos , Antimaláricos/farmacologia , Antimaláricos/uso terapêutico , Plasmodium falciparum/metabolismo , Ácido Aspártico Endopeptidases , Malária/tratamento farmacológico
14.
Sci Rep ; 12(1): 14959, 2022 Sep 02.
Artigo em Inglês | MEDLINE | ID: mdl-36056138

RESUMO

Mohr-Tranebjærg syndrome is an X-linked syndrome characterized by sensorineural hearing impairment in childhood, followed by progressive neurodegeneration leading to a broad phenotypic spectrum. Genetically MTS is caused by pathogenic variants in the TIMM8A gene, including gene deletions and larger contiguous gene deletions. Some of the latter involve the neighboring gene BTK, resulting in agammaglobulinemia. By next-generation mate-pair sequencing we have mapped the chromosomal deletion breakpoints of one MTS case and three XLA-MTS cases and used breakpoint-spanning PCR to fine map the breakpoints by Sanger sequencing. Two of the XLA-MTS cases presented with large deletions (63.5 and 27.2 kb), and the junctional regions were characterized by long stretches of microhomology, indicating that the events have emerged through homologous recombination. Conversely, the MTS case exhibited a small 2 bp region of microhomology, and the regions were not characterized by extensive microhomology. The third XLA-MTS case had a more complex breakpoint, including a 59 bp inverted insertion, thus at least four breakpoints were involved in this event. In conclusion, mate-pair library generation combined with next-generation sequencing is an efficient method for breakpoint identification, also in regions characterized by repetitive elements.


Assuntos
Surdocegueira , Distonia , Deficiência Intelectual , Atrofia Óptica , Surdocegueira/genética , Distonia/genética , Humanos , Deficiência Intelectual/genética , Proteínas de Membrana Transportadoras/genética , Proteínas do Complexo de Importação de Proteína Precursora Mitocondrial , Atrofia Óptica/genética
15.
Int J Neonatal Screen ; 8(3)2022 Jul 20.
Artigo em Inglês | MEDLINE | ID: mdl-35892474

RESUMO

Evidence on the cost-effectiveness of newborn screening (NBS) for severe combined immunodeficiency (SCID) in the Australian policy context is lacking. In this study, a pilot population-based screening program in Australia was used to model the cost-effectiveness of NBS for SCID from the government perspective. Markov cohort simulations were nested within a decision analytic model to compare the costs and quality-adjusted life-years (QALYs) over a time horizon of 5 and 60 years for two strategies: (1) NBS for SCID and treat with early hematopoietic stem cell transplantation (HSCT); (2) no NBS for SCID and treat with late HSCT. Incremental costs were compared to incremental QALYs to calculate the incremental cost-effectiveness ratios (ICER). Sensitivity analyses were performed to assess the model uncertainty and identify key parameters impacting on the ICER. In the long-term over 60 years, universal NBS for SCID would gain 10 QALYs at a cost of US $0.3 million, resulting in an ICER of US$33,600/QALY. Probabilistic sensitivity analysis showed that more than half of the simulated ICERs were considered cost-effective against the common willingness-to-pay threshold of A$50,000/QALY (US$35,000/QALY). In the Australian context, screening for SCID should be introduced into the current NBS program from both clinical and economic perspectives.

16.
Int J Neonatal Screen ; 8(3)2022 Jul 20.
Artigo em Inglês | MEDLINE | ID: mdl-35892475

RESUMO

Spinal muscular atrophy (SMA) and severe combined immunodeficiency (SCID) are rare, inherited genetic disorders with severe mortality and morbidity. The benefits of early diagnosis and initiation of treatment are now increasingly recognized, with the most benefits in patients treated prior to symptom onset. The aim of the economic evaluation was to investigate the costs and outcomes associated with the introduction of universal newborn screening (NBS) for SCID and SMA, by generating measures of cost-effectiveness and budget impact. A stepwise approach to the cost-effectiveness analyses by decision analytical models nested with Markov simulations for SMA and SCID were conducted from the government perspective. Over a 60-year time horizon, screening every newborn in the population and treating diagnosed SCID by early hematopoietic stem cell transplantation and SMA by gene therapy, would result in 95 QALYs gained per 100,000 newborns, and result in cost savings of USD 8.6 million. Sensitivity analysis indicates 97% of simulated results are considered cost-effective against commonly used willingness-to-pay thresholds. The introduction of combined NBS for SCID and SMA is good value for money from the long-term clinical and economic perspectives, representing a cost saving to governments in the long-term, as well as improving and saving lives.

17.
Sci Immunol ; 7(73): eabq3277, 2022 07 22.
Artigo em Inglês | MEDLINE | ID: mdl-35867801

RESUMO

High-level expression of the transcription factor T-bet characterizes a phenotypically distinct murine B cell population known as "age-associated B cells" (ABCs). T-bet-deficient mice have reduced ABCs and impaired humoral immunity. We describe a patient with inherited T-bet deficiency and largely normal humoral immunity including intact somatic hypermutation, affinity maturation and memory B cell formation in vivo, and B cell differentiation into Ig-producing plasmablasts in vitro. Nevertheless, the patient exhibited skewed class switching to IgG1, IgG4, and IgE, along with reduced IgG2, both in vivo and in vitro. Moreover, T-bet was required for the in vivo and in vitro development of a distinct subset of human B cells characterized by reduced expression of CD21 and the concomitantly high expression of CD19, CD20, CD11c, FCRL5, and T-bet, a phenotype that shares many features with murine ABCs. Mechanistically, human T-bet governed CD21loCD11chi B cell differentiation by controlling the chromatin accessibility of lineage-defining genes in these cells: FAS, IL21R, SEC61B, DUSP4, DAPP1, SOX5, CD79B, and CXCR4. Thus, human T-bet is largely redundant for long-lived protective humoral immunity but is essential for the development of a distinct subset of human CD11chiCD21lo B cells.


Assuntos
Linfócitos B , Plasmócitos , Proteínas Adaptadoras de Transdução de Sinal , Animais , Antígeno CD11c/metabolismo , Regulação da Expressão Gênica , Humanos , Imunoglobulina G , Lipoproteínas/metabolismo , Ativação Linfocitária , Camundongos
19.
Psychiatry Res ; 311: 114499, 2022 05.
Artigo em Inglês | MEDLINE | ID: mdl-35305343

RESUMO

There are currently no evidence-based treatment recommendations for impulse control disorders, which include intermittent explosive disorder (IED), kleptomania and pyromania. Therefore, this systematic review sought to identify all randomized controlled trials (RCTs) that investigated pharmacological treatments for impulse control disorders, to evaluate their efficacy and tolerability. Searches were conducted within MEDLINE, PsychINFO, EMBASE, Web of Science, and Cochrane Central Register of Controlled Trials (CENTRAL) databases. Eight studies were included, six investigated pharmacotherapies for IED, while two investigated management for kleptomania. For the treatment of IED, oxcarbazepine and fluoxetine were the most efficacious. Importantly, divalproex was not superior to placebo in decreasing IED symptoms and was associated with significant adverse effects. In the treatment of kleptomania, only naltrexone was effective. The existing data suggest that the pharmacological treatment for impulse control disorders is an understudied area of psychiatry. Much of the current research on impulse control disorders focuses on management with anticonvulsants and antidepressants. Further studies conducted on these interventions in this population may yield promising results.


Assuntos
Transtornos Disruptivos, de Controle do Impulso e da Conduta , Antidepressivos/uso terapêutico , Transtornos Disruptivos, de Controle do Impulso e da Conduta/tratamento farmacológico , Fluoxetina/uso terapêutico , Humanos , Ácido Valproico
20.
J Allergy Clin Immunol Glob ; 1(3): 99-105, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37781263

RESUMO

Background: Historical penicillin allergy is commonly reported, but the lack of standardized allergy clinic practices may diminish the ability to delabel beta-lactam allergy appropriately. Objective: We sought to improve beta-lactam allergy testing and patient understanding of their antibiotic allergy status by standardizing testing and communication practices between 7 adult and pediatric hospital centers. Methods: Phase 1 prospectively described the beta-lactam allergy testing practices at each center. Following this, practice was standardized to achieve a defined panel of skin testing reagents, pro forma result letters for patients and referring doctors, and provision of medical alert jewelry to those with confirmed allergy. Testing outcomes and patient perception regarding allergy status 8 weeks postassessment were compared before (phase 1) and after standardization (phase 2). Primary outcomes were the percentage of participants delabeled after testing, and concordance rates between participant perception of their allergy status and their status as determined by the treating physician at 8-week follow-up. Results: Of 195 adult and pediatric participants (median age, 50 years; 21.5% <18 years; 36.9% males), 75% were delabeled of their beta-lactam allergy. No patient experienced anaphylaxis related to any beta-lactam delabeling testing. In phase 1, 75% of participants received written results, 52% were informed verbally, and 48% received results in more than 1 form. All phase 2 participants received written results (P < .01), 61% received verbal results from a physician as well (P > .05). At 8-week follow-up, 54% of phase 1 participants had concordant perceptions of their allergy status as the testing team versus 91.6% in phase2 (P < .001). Of the 17 participants who were delabeled and treated with a beta-lactam antibiotic during the 8-week follow-up period, there were no reported allergic reactions, although 1 participant experienced anaphylaxis following exposure to amoxicillin-clavulanic acid 1 year after delabeling. Conclusions: Standardization of testing and written patient information improved short-term patient perception of beta-lactam allergy status.

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