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1.
Comput Inform Nurs ; 42(2): 104-108, 2024 Feb 01.
Article in English | MEDLINE | ID: mdl-38206326

ABSTRACT

Vulnerable populations face challenges gaining access to quality healthcare, which places them at a high risk for poor health outcomes. Using patient portals and secure messaging can improve patient activation, access to care, patient follow-up adherence, and health outcomes. Developing and testing quality improvement strategies to help reduce disparities is vital to ensure patient portals benefit all, especially vulnerable populations. This quality improvement initiative aimed to increase enrollment in a patient portal, use secure messages, and adhere to follow-up appointments. Before the project, no patients were enrolled in the portal at this practice site. Over 8 weeks, 61% of invited patients were enrolled in the patient portal. Eighty-five percent were Medicaid recipients, and the others were underinsured. Eight patients utilized the portal for secure messaging. The follow-up appointment attendance rate was better in the enrolled patients than in those who did not enroll. The majority of survey respondents reported satisfaction in using the patient portal. Patient portal utilization and adoption in vulnerable groups can improve when a one-on-one, hands-on demonstration and technical assistance are provided.


Subject(s)
Patient Portals , Humans , Vulnerable Populations , Electronic Health Records , Electronic Mail , Computer Security
2.
Sci Rep ; 14(1): 1412, 2024 01 16.
Article in English | MEDLINE | ID: mdl-38228608

ABSTRACT

Chagas disease is a leading cause of non-ischemic cardiomyopathy in endemic regions of Central and South America. In Belize, Triatoma dimidiata sensu lato has been identified as the predominate taxon but vectorial transmission of Chagas disease is considered to be rare in the country. We recently identified an acute case of vector-borne Chagas disease in the northern region of Belize. Here we present a subsequent investigation of triatomines collected around the case-patient's home. We identified yet undescribed species, closely related to Triatoma huehuetenanguensis vector by molecular systematics methods occurring in the peridomestic environment. The identification of a T. cruzi-positive, novel species of Triatoma in Belize indicates an increased risk of transmission to humans in the region and warrants expanded surveillance and further investigation.


Subject(s)
Chagas Disease , Triatoma , Trypanosoma cruzi , Animals , Humans , Belize , Trypanosoma cruzi/genetics , Insect Vectors
3.
J Adv Nurs ; 2024 Jan 19.
Article in English | MEDLINE | ID: mdl-38243619

ABSTRACT

AIM(S): To assess the effectiveness of sub-epidermal moisture (SEM) assessment technology in the detection of early-stage pressure damage in a critical care unit (CCU) and dark skin tone patients and its impact on hospital-acquired pressure injury (HAPI) incidence. DESIGN: Quality improvement study employing Kurt Lewin's change model emphasizing planning, implementation, evaluation and sustainable change. METHODS: The study evaluated 140 adult patients admitted to the CCU over a 24-week period, from July to December 2022. Retrospective analysis of standard PI care pathways was performed in 90 patients admitted during a 12-week pre-implementation period. Fifty patients were admitted through the subsequent 12-week implementation period. SEM assessments were performed daily at the sacrum and heels and interventions were applied based on SEM assessments; SEM delta ≥0.6 indicating localized oedema or persistent focal oedema. Statistical analyses were performed on anonymized data. RESULTS: Pre-implementation HAPI incidence was 8.9% (N = 8/90). All eight patients were African American with varying skin tones. A 100% reduction in HAPI incidence was achieved in the implementation period which included 35 African American patients. The relative risk of HAPI incidence was 1.6 times higher in the pre-implementation group. CONCLUSION: Implementing SEM assessment technology enabled equitable PI care for all population types and resulted in a 100% reduction of PIs in our CCU. Objective SEM assessments detected early-stage PIs, regardless of skin tone and enabled providing interventions to specific anatomies developing tissue damage as opposed to universal preventive interventions. IMPLICATIONS: PI care pathways relying on visual and tactile skin assessments are inherently biased in providing equitable care for dark skin tone patients. Implementing SEM assessments empowers healthcare practitioners in driving objective clinical interventions, eliminates bias and enables positive PI health outcomes. IMPACT: Implementing SEM assessment technology had three main effects: it detected early tissue damage regardless of skin tone (detection effect), enabled anatomy-specific interventions (treatment effect) and prevented PIs across all population types (prevention effect). The authors have adhered to the Standards for Quality Improvement Reporting Excellence (SQUIRE) 2.0 guidelines. PATIENT OR PUBLIC CONTRIBUTION: No patient or public contribution. What does this paper contribute to the wider global clinical community? Addressing health inequities in pressure injury prevention; Demonstrated effectiveness across patient populations; Resource optimization and enhanced patient safety.

4.
Nurs Clin North Am ; 59(1): 49-61, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38272583

ABSTRACT

Spurred by a global pandemic, the incidence and prevalence of stress-related injury and illness continues to increase amid an overburdened nursing workforce that has remarkably and reliably performed on the frontlines of health care. Indicated mental illness prevention programs such as Stress First Aid for Healthcare Workers create an opportunity to target the acute and chronic expressions of stress experienced by nurses earlier through coordinated peer support with the goals of preserving life, preventing further harm, and promoting recovery. This article will describe how a Stress First Aid program was operationalized at a school of nursing at a private university.


Subject(s)
Education, Nursing , Mental Disorders , Humans , First Aid , Delivery of Health Care , Health Personnel , Mental Disorders/prevention & control
5.
J Nurs Care Qual ; 39(2): 175-182, 2024.
Article in English | MEDLINE | ID: mdl-37782914

ABSTRACT

BACKGROUND: Nearly half of American adults have hypertension (HTN), and non-Hispanic Black patients are diagnosed at a higher rate than others. LOCAL PROBLEM: Our local clinic population reflected disproportionate rates of uncontrolled HTN among Black patients. METHODS: A quality improvement pre-/postintervention design was used to evaluate an educational intervention to reduce blood pressure (BP) and improve self-monitoring of BP in Black patients using the Chronic Care Model. INTERVENTIONS: A team-based approach was used to redesign clinic workflows and patient education, prescribe self-paced videos from an electronic health record (EHR) patient portal, and provide home BP cuffs. RESULTS: Black participants (n = 79) improved viewing of prescribed videos (7.9% to 68.5%), knowledge scores (67.9 to 75.2), and mean systolic BP (-20.3 mm Hg; P > .001). CONCLUSIONS: This team-based approach enhanced patient engagement, self-monitoring skills, EHR-reported BP, and overall BP control for a cohort of Black patients with uncontrolled BP.


Subject(s)
Electronic Health Records , Hypertension , Adult , Humans , Quality Improvement , Workflow , Black or African American , Hypertension/prevention & control , Hypertension/diagnosis
6.
Trop Med Infect Dis ; 8(12)2023 Dec 05.
Article in English | MEDLINE | ID: mdl-38133447

ABSTRACT

Chagas disease is a public health problem in the Americas, from the southern United States (USA) to Argentina. In the USA, less than 1% of domestic cases have been identified and less than 0.3% of total cases have received treatment. Little is known about affected immigrant Latin American communities. A prospective study was conducted to assess knowledge about Chagas disease among the Latin American community living in the Greater New Orleans area. Participants answered a baseline questionnaire, viewed a short educational video presentation, completed a post-presentation questionnaire, and were screened with an FDA-approved blood rapid diagnostic test (RDT). A total of 154 participants from 18 Latin American countries (n = 138) and the USA (n = 16) were enrolled and screened for Trypanosoma cruzi infection. At baseline, 57% of the participants knew that Chagas disease is transmitted through an insect vector, and 26% recognized images of the vector. Following the administration of an educational intervention, the participants' knowledge regarding vector transmission increased to 91% and 35% of participants were able to successfully identify images of the vector. Five participants screened positive for T. cruzi infection, indicating a 3.24% [95%CI: 1.1-7.5%] prevalence of Trypanosoma cruzi infection within the Latin American community of the New Orleans area. Results highlight the urgent need for improving access to education and diagnostics of Chagas disease.

7.
PLoS One ; 18(11): e0293068, 2023.
Article in English | MEDLINE | ID: mdl-37910461

ABSTRACT

AIMS: To evaluate the impact of a lay health worker support role in the inpatient setting. BACKGROUND: Healthcare systems are facing critical nursing and nurse assistant staffing shortages. These disciplines can be challenging to recruit and retain, leading healthcare leaders to identify innovative staffing models. Whereas lay health workers have been used in the community and low-income setting, there is scant evidence of their use in the inpatient setting. We implemented a lay health worker role, called Patient Attendant Service Aides (PASAs), on two medical/surgical units at a community hospital. METHODS: A pre/post-implementation design was used for this study. An online survey was provided to nurses, nursing assistants, and PASAs on the two medical/surgical units to assess their satisfaction and perceptions of the role. Nursing quality metrics, patient satisfaction, and nursing and nursing assistant turnover were evaluated before and after implementing the role. RESULTS: The online survey showed that nurses and nursing assistants felt that PASAs helped offload their workload, allowing them to focus on nursing-related tasks. PASAs felt supported by the team and believed they were making a meaningful contribution to the unit. There were slight improvements in patient satisfaction, although not significant. There was a significant improvement in nursing turnover on Unit A, from 71.1% to 21.6% (p = 0.009). CONCLUSIONS: This is one of the first studies to evaluate the use of lay health workers in the inpatient setting; we found this role to be a feasible way to offload tasks from clinical staff. This role may serve as a pathway for workforce development, as several PASAs are now enrolled in nursing assistant training. Nurse managers may consider using lay health workers in the inpatient setting as they face severe clinical staff shortages.


Subject(s)
Inpatients , Nursing Staff, Hospital , Humans , Workload , Health Workforce , Workforce , Quality of Health Care , Personnel Staffing and Scheduling
8.
J Infus Nurs ; 46(6): 313-319, 2023.
Article in English | MEDLINE | ID: mdl-37920105

ABSTRACT

Placement of peripheral intravenous catheters (PIVCs) is a frequent occurrence. Yet, PIVCs consistently require multiple attempts for successful cannulation, leading to an increased use of resources and risk of complications. Even though hospitals have established vascular access teams to improve outcomes and increase longevity of PIVCs, not every facility has one, and some struggle to meet demand. In these cases, PIVC placement depends on the confidence and skills of bedside nurses. Difficult access risk identification tools, as well as vein visualization technologies, like near infrared (nIR), have been developed to assist nurses with cannulation. This study sought to explore how hospitals are using vein visualization technology in nurse-driven protocols and to evaluate whether the technology is being meaningfully integrated into venous assessment and PIVC access protocols. In a survey sent to facilities utilizing nIR technology, 48% of respondents incorporated nIR in nurse-driven protocols. Of these respondents, 88% reported improvement in patient satisfaction, 92% saw a reduction in escalations, and 79% reported a reduction in hospital-acquired infections associated with PIVC placement. Integrating vein visualization technology into nurse-driven PIVC placement protocols has the potential to make a positive impact but requires future research to reproduce these findings in clinical studies.


Subject(s)
Catheterization, Peripheral , Hospitals , Humans , Administration, Intravenous , Injections, Intravenous , Catheterization, Peripheral/methods , Surveys and Questionnaires
9.
Article in English | MEDLINE | ID: mdl-37538103

ABSTRACT

OBJECTIVE: Increasing workforce capacity to provide knowledgeable, skilled, and affirming care for transgender and gender diverse people is critical to reduce health inequities; however, few clinicians receive sufficient training on this topic. This article describes Advancing Excellence in Transgender Health (AETH), an annual international conference that offers continuing professional development on evidence-based medical and behavioral healthcare for transgender and gender diverse people across the lifespan. METHODS: Registration data and post-conference evaluation data were descriptively analyzed to assess conference reach, participant satisfaction, and participant intentions to change practice. RESULTS: Between 2015 and 2022, AETH trained 2677 participants from all US states and 24 countries. Based on post-conference evaluations, 2017-2022, participant satisfaction was high (mean ≥4.4 on a 5-point scale) on all measures, including meeting learning objectives, quality of presentations, and relevance to practice. Participants reported intentions to: implement new information or skills (86.7%); create or revise protocols, policies, and/or procedures (63.2%); and seek additional information (64.2%). To increase equity, the conference waives fees for transgender and gender diverse participants and offers free online sessions. The conference also holds sessions specifically for transgender and gender diverse participants to promote opportunities for community-building, self-care, and professional networking. CONCLUSION: The broad reach of AETH demonstrates a large demand for more continuing professional development on transgender and gender diverse healthcare. This conference has expanded the availability of training designed to increase and enhance clinical workforce capacity to meet the health needs of transgender and gender diverse communities in the US and across the world.

10.
J Perianesth Nurs ; 38(6): 845-850, 2023 12.
Article in English | MEDLINE | ID: mdl-37589630

ABSTRACT

PURPOSE: The use of lung protective ventilation (LPV) during general anesthesia is an effective strategy among certified registered nurse anesthetists (CRNAs) to reduce and prevent the incidence of postoperative pulmonary complications. The purpose of this project was to implement a LPV protocol, assess CRNA provider adherence, and investigate differences in ventilation parameters and postoperative oxygen requirements. DESIGN: This quality improvement project was conducted using a pre- and postimplementation design. METHODS: Sixty patients undergoing robotic laparoscopic abdominal surgery and 35 CRNAs at a community hospital participated. An evidence-based intraoperative LPV protocol was developed, CRNA education was provided, and the protocol was implemented. Pre- and postimplementation, CRNA knowledge, and confidence were assessed. Ventilation data were collected at 1-minute intervals intraoperatively and oxygen requirements were recorded in the postanesthesia care unit (PACU). FINDINGS: Use of intraoperative LPV strategies increased 2.4%. Overall CRNA knowledge (P = .588), confidence (P = .031), and practice (P < .001) improved from pre- to postimplementation. Driving pressures decreased from pre- to postimplementation (P < .001). Supplemental oxygen use on admission to the PACU decreased from 93.3% to 70.0%. CONCLUSIONS: Educational interventions and implementation of a standardized protocol can improve the use of intraoperative LPV strategies and patient outcomes.


Subject(s)
Nurse Anesthetists , Respiration, Artificial , Humans , RNA, Complementary , Lung , Postoperative Complications/prevention & control , Oxygen
11.
J Perianesth Nurs ; 38(6): 851-859.e2, 2023 12.
Article in English | MEDLINE | ID: mdl-37589633

ABSTRACT

PURPOSE: The purpose of this quality improvement (QI) project was to reintroduce and assess the feasibility of a standardized, electronic health record (EHR) handoff tool and to evaluate the sustainability of a structured, team-based approach in a pediatric postanesthesia care unit (PACU). DESIGN: This QI project used an observational pre-post design using two separate convenience samples of handoffs and perianesthesia providers. METHODS: A standardized EHR handoff tool was reintroduced for operating room to pediatric PACU handoff communication. Handoffs between anesthesia providers, surgery team members, and PACU nurses were observed pre- and postreintroduction of the EHR handoff tool. Anesthesia providers and PACU RNs received training for giving and receiving handoffs and were provided directions on locating the EHR handoff tool. A bedside audit of items communicated for the six handoff phases (introductions, situation, background, assessment, recommendations, and questions), handoff duration, team member participation, and handoff tool utilization were performed for 149 handoffs pre- and 146 handoffs postimplementation. To evaluate sustainability, the audits were compared to postimplementation data from the 2014 pilot handoff project. FINDINGS: Following reintroduction, EHR handoff tool use increased from 4% to 19%. There was a statistically significant increase in items communicated for three of the six handoff phases when using the EHR tool (P < .05). There was no statistically significant increase in handoff duration (mean = 3.66 minutes, SD = 1.57 minutes) with the EHR handoff tool. Surgical team member presence for the team-based handoff increased from 90.7% pre to 95.9% post. Provider compliance with the team-based handoff approach, which includes a PACU RN, surgical team member, and anesthesia team member present for handoff, was sustained and increased 6 years postimplementation. Feedback from anesthesia providers and PACU RNs indicated mixed reports of satisfaction with the EHR tool, perceived handoff efficiency, and consistency in both giving and receiving handoff. Adherence to five of the six structured handoff phases, except introductions, was sustained and even improved 6 years following implementation. CONCLUSIONS: Evidence-based practice for handoff communication supports the use of a team approach and standardized EHR handoff tools. The reintroduction of a standardized EHR handoff tool improved the completeness of information transfer, yet did not lead to widespread adoption nor improved user satisfaction. There is an ongoing need to identify adoptable and sustainable perioperative handoff methods.


Subject(s)
Anesthesia , Anesthesiology , Patient Handoff , Humans , Child , Operating Rooms , Quality Improvement , Communication
12.
MMWR Morb Mortal Wkly Rep ; 72(30): 815-820, 2023 Jul 28.
Article in English | MEDLINE | ID: mdl-37498787

ABSTRACT

Alpha-gal syndrome (AGS) is an emerging, tick bite-associated allergic condition characterized by a potentially life-threatening immunoglobulin E (IgE)-mediated hypersensitivity to galactose-alpha-1,3-galactose (alpha-gal), an oligosaccharide found in most nonprimate mammalian meat and products derived from these mammals. Specific symptoms and severity of AGS vary among persons, and no treatment or cure is currently available. During 2010-2018, more than 34,000 suspected cases of AGS were identified in the United States, but current knowledge of where cases occur is limited. This study examined alpha-gal-specific IgE (sIgE) antibody testing results submitted to the commercial laboratory responsible for nearly all testing in the United States before 2022 to assess the geographic distribution and magnitude of this emerging condition. During January 1, 2017-December 31, 2022, a total of 357,119 tests were submitted from residences in the United States, corresponding to 295,400 persons. Overall, 90,018 (30.5%) persons received a positive test result in the study period, and the number of persons with positive test results increased from 13,371 in 2017 to 18,885 in 2021. Among 233,521 persons for whom geographic data were available, suspected cases predominantly occurred in counties within the southern, midwestern, and mid-Atlantic U.S. Census Bureau regions. These data highlight the evolving emergence of AGS and can be used to help state and local health agencies initiate surveillance and target public health outreach and health care provider education to high-risk localities.


Subject(s)
Food Hypersensitivity , Tick Bites , Animals , Humans , United States/epidemiology , Galactose , Tick Bites/epidemiology , Immunoglobulin E , Mammals
13.
MMWR Morb Mortal Wkly Rep ; 72(30): 809-814, 2023 Jul 28.
Article in English | MEDLINE | ID: mdl-37498792

ABSTRACT

Alpha-gal syndrome (AGS) is an emerging, tick bite-associated immunoglobulin E-mediated allergic condition characterized by a reaction to the oligosaccharide galactose-alpha-1,3-galactose (alpha-gal), which is found in mammalian meat and products derived from mammals, including milk, other dairy products, and some pharmaceutical products. Symptoms range from mild (e.g., a rash or gastrointestinal upset) to severe (anaphylaxis); onset typically occurs ≥2 hours after exposure to alpha-gal. No treatment or cure is currently available. Despite the potential life-threating reactions associated with AGS, most patients perceive that health care providers (HCPs) have little or no knowledge of AGS. A U.S. web-based survey of 1,500 HCPs revealed limited knowledge of AGS, identified areas for continuing medical education, and described self-reported diagnostic and management practices. Overall, 42% of surveyed HCPs had never heard of AGS, and among those who had, fewer than one third knew how to diagnose the condition. Two thirds of respondents indicated that guidelines for the diagnosis and management of AGS would be useful clinical resources. Limited awareness and knowledge of AGS among HCPs likely contributes to underdiagnosis of this condition and inadequate patient management, and underestimates of the number of AGS patients in the United States, which currently relies on laboratory testing data alone.


Subject(s)
Anaphylaxis , Food Hypersensitivity , Tick Bites , Animals , Humans , Food Hypersensitivity/diagnosis , Food Hypersensitivity/therapy , Food Hypersensitivity/complications , Galactose , Mammals , Health Knowledge, Attitudes, Practice , United States
14.
Adv Emerg Nurs J ; 45(3): 240-247, 2023.
Article in English | MEDLINE | ID: mdl-37501277

ABSTRACT

The purpose of this quality improvement project is to assess and improve the quality of splint application in the emergency department (ED), as well as the splint application confidence level of the ED staff. Consistent and high-quality splint application is critical in fracture stabilization and prevention of further injury. Significantly high turnover and a lack of formal training of ED staff has led to poor splint application, and in some cases, patient injuries related to the splints themselves. These injuries include pain, edema, and skin complications (A. P. Carino, 2017). A random, Likert-based analysis was performed on 20 ED-applied splints. Once analysis was complete, training courses were implemented to improve splint application techniques. Using the same Likert-based tool, applications of 20 posttraining splints were analyzed. In addition, ED staff confidence levels were scored before and after the training courses. Overall, statistically significant improvement was achieved in splint application quality and staff confidence. Correct splint applications increased from 50% to 95% after the educational sessions. Staff confidence in splint application also increased, from 35% to 77.1%. Quality splint application affects all patients. The higher risk population is more likely to suffer the consequences of poor splint application. This project had a positive impact on the region's marginalized patient population. These patients have limited resources, including lack of transportation, financial limitations, and typically are at higher risk for complications due to comorbidities.


Subject(s)
Fractures, Bone , Splints , Humans , Emergency Service, Hospital , Pain , Quality Improvement
15.
Neuropsychopharmacol Rep ; 43(4): 532-541, 2023 Dec.
Article in English | MEDLINE | ID: mdl-37368937

ABSTRACT

AIM: Phenobarbital, a long-acting barbiturate, presents an alternative to conventional benzodiazepine treatment for alcohol withdrawal syndrome (AWS). Currently, existing research offers only modest guidance on the safety and effectiveness of phenobarbital in managing AWS in hospital settings. The study objective was to assess if a phenobarbital protocol for the treatment of AWS reduces respiratory complications when compared to a more traditionally used benzodiazepine protocol. METHODS: A retrospective cohort study analyzing adults who received either phenobarbital or benzodiazepine-based treatment for AWS over a 4-year period, 2015-2019, in a community teaching hospital in a large academic medical system. RESULTS: A total of 147 patient encounters were included (76 phenobarbital and 71 benzodiazepine). Phenobarbital was associated with a significantly decreased risk of respiratory complications, defined by the occurrence of intubation (15/76 phenobarbital [20%] vs. 36/71 benzodiazepine [51%]) and decreased incidence of the requirement of six or greater liters of oxygen when compared with benzodiazepines (10/76 [13%] vs. 28/71 [39%]). There was a significantly higher incidence of pneumonia in benzodiazepine patients (15/76 [20%] vs. 33/71 [47%]). Mode Richmond Agitation Sedation Scale (RASS) scores were more frequently at goal (0 to -1) between 9 and 48 h after the loading dose of study medication for phenobarbital patients. Median hospital and ICU length of stay were significantly shorter for phenobarbital patients when compared with benzodiazepine patients (5 vs. 10 days and 2 vs. 4 days, respectively). CONCLUSION: Parenteral phenobarbital loading doses with an oral phenobarbital tapered protocol for AWS resulted in decreased risk of respiratory complications when compared to standard treatment with benzodiazepines.


Subject(s)
Alcoholism , Substance Withdrawal Syndrome , Adult , Humans , Benzodiazepines/adverse effects , Substance Withdrawal Syndrome/drug therapy , Substance Withdrawal Syndrome/epidemiology , Alcoholism/drug therapy , Hypnotics and Sedatives/adverse effects , Retrospective Studies , Phenobarbital/adverse effects
16.
J Dr Nurs Pract ; 2023 Jun 27.
Article in English | MEDLINE | ID: mdl-37369453

ABSTRACT

Background: The most modifiable risk factor contributing to antibiotic resistance is the inappropriate prescription of antibiotics. Urinary tract infections (UTIs) are a common outpatient infection in the United States, with increasing antimicrobial resistance to uropathogens. As empiric UTI treatment is often appropriate, telemedicine offers an opportunity to enhance practice by adopting current clinical practice guidelines. Objective: The project aims to improve appropriate first-line antibiotic choice and decrease urinalysis and urine culture orders in the telehealth management of uncomplicated UTIs. Methods: Chart reviews of women aged 18-65 years diagnosed with an uncomplicated UTI and/or symptoms during a telehealth primary care visit were conducted for a period of 30 days prior to and following a provider educational intervention. Results: Improvement (37.5%-62.1%, p = .133), though not significant, of appropriate first-line antibiotics prescribing postintervention was achieved. There was a minimal (3%) improvement in the appropriate urine labs ordered. Conclusion: Following the intervention, there was not a statistically significant practice change, albeit somewhat of an improvement in the ordering of first-line antibiotics. Adopting evidence-based practice in telehealth could provide an opportunity to improve antibiotic stewardship. Providers are potentially better engaged through the presence of champions, in-person education sessions, and the availability of streamlined algorithms.

17.
Front Bioinform ; 3: 1178926, 2023.
Article in English | MEDLINE | ID: mdl-37151482

ABSTRACT

Protein annotation errors can have significant consequences in a wide range of fields, ranging from protein structure and function prediction to biomedical research, drug discovery, and biotechnology. By comparing the domains of different proteins, scientists can identify common domains, classify proteins based on their domain architecture, and highlight proteins that have evolved differently in one or more species or clades. However, genome-wide identification of different protein domain architectures involves a complex error-prone pipeline that includes genome sequencing, prediction of gene exon/intron structures, and inference of protein sequences and domain annotations. Here we developed an automated fact-checking approach to distinguish true domain loss/gain events from false events caused by errors that occur during the annotation process. Using genome-wide ortholog sets and taking advantage of the high-quality human and Saccharomyces cerevisiae genome annotations, we analyzed the domain gain and loss events in the predicted proteomes of 9 non-human primates (NHP) and 20 non-S. cerevisiae fungi (NSF) as annotated in the Uniprot and Interpro databases. Our approach allowed us to quantify the impact of errors on estimates of protein domain gains and losses, and we show that domain losses are over-estimated ten-fold and three-fold in the NHP and NSF proteins respectively. This is in line with previous studies of gene-level losses, where issues with genome sequencing or gene annotation led to genes being falsely inferred as absent. In addition, we show that insistent protein domain annotations are a major factor contributing to the false events. For the first time, to our knowledge, we show that domain gains are also over-estimated by three-fold and two-fold respectively in NHP and NSF proteins. Based on our more accurate estimates, we infer that true domain losses and gains in NHP with respect to humans are observed at similar rates, while domain gains in the more divergent NSF are observed twice as frequently as domain losses with respect to S. cerevisiae. This study highlights the need to critically examine the scientific validity of protein annotations, and represents a significant step toward scalable computational fact-checking methods that may 1 day mitigate the propagation of wrong information in protein databases.

18.
Hum Brain Mapp ; 44(9): 3815-3832, 2023 06 15.
Article in English | MEDLINE | ID: mdl-37145965

ABSTRACT

Acute exercise suppresses appetite and alters food-cue reactivity, but the extent exercise-induced changes in cerebral blood flow (CBF) influences the blood-oxygen-level-dependent (BOLD) signal during appetite-related paradigms is not known. This study examined the impact of acute running on visual food-cue reactivity and explored whether such responses are influenced by CBF variability. In a randomised crossover design, 23 men (mean ± SD: 24 ± 4 years, 22.9 ± 2.1 kg/m2 ) completed fMRI scans before and after 60 min of running (68% ± 3% peak oxygen uptake) or rest (control). Five-minute pseudo-continuous arterial spin labelling fMRI scans were conducted for CBF assessment before and at four consecutive repeat acquisitions after exercise/rest. BOLD-fMRI was acquired during a food-cue reactivity task before and 28 min after exercise/rest. Food-cue reactivity analysis was performed with and without CBF adjustment. Subjective appetite ratings were assessed before, during and after exercise/rest. Exercise CBF was higher in grey matter, the posterior insula and in the region of the amygdala/hippocampus, and lower in the medial orbitofrontal cortex and dorsal striatum than control (main effect trial p ≤ .018). No time-by-trial interactions for CBF were identified (p ≥ .087). Exercise induced moderate-to-large reductions in subjective appetite ratings (Cohen's d = 0.53-0.84; p ≤ .024) and increased food-cue reactivity in the paracingulate gyrus, hippocampus, precuneous cortex, frontal pole and posterior cingulate gyrus. Accounting for CBF variability did not markedly alter detection of exercise-induced BOLD signal changes. Acute running evoked overall changes in CBF that were not time dependent and increased food-cue reactivity in regions implicated in attention, anticipation of reward, and episodic memory independent of CBF.


Subject(s)
Cues , Running , Humans , Male , Brain/physiology , Cerebrovascular Circulation/physiology , Magnetic Resonance Imaging/methods , Oxygen , Cross-Over Studies
19.
Transgend Health ; 8(2): 188-194, 2023 Apr.
Article in English | MEDLINE | ID: mdl-37013092

ABSTRACT

Combination therapy with estrogen and spironolactone may help some transgender women achieve desired results. We used two databases, OptumLabs® Data Warehouse (OLDW) and Veterans Health Administration (VHA), to examine trends in feminizing therapy. We included 3368 transgender patients from OLDW and 3527 from VHA, all of whom received estrogen, spironolactone, or both between 2006 and 2017. In OLDW, the proportion receiving combination therapy increased from 47% to 75% during this period. Similarly, in VHA, the proportion increased from 39% to 69% during this period. We conclude that the use of combination hormone therapy has become much more common over the past decade.

20.
J Fungi (Basel) ; 9(4)2023 Mar 29.
Article in English | MEDLINE | ID: mdl-37108879

ABSTRACT

In fungi, the most abundant transcription factor (TF) class contains a fungal-specific 'GAL4-like' Zn2C6 DNA binding domain (DBD), while the second class contains another fungal-specific domain, known as 'fungal_trans' or middle homology domain (MHD), whose function remains largely uncharacterized. Remarkably, almost a third of MHD-containing TFs in public sequence databases apparently lack DNA binding activity, since they are not predicted to contain a DBD. Here, we reassess the domain organization of these 'MHD-only' proteins using an in silico error-tracking approach. In a large-scale analysis of ~17,000 MHD-only TF sequences present in all fungal phyla except Microsporidia and Cryptomycota, we show that the vast majority (>90%) result from genome annotation errors and we are able to predict a new DBD sequence for 14,261 of them. Most of these sequences correspond to a Zn2C6 domain (82%), with a small proportion of C2H2 domains (4%) found only in Dikarya. Our results contradict previous findings that the MHD-only TF are widespread in fungi. In contrast, we show that they are exceptional cases, and that the fungal-specific Zn2C6-MHD domain pair represents the canonical domain signature defining the most predominant fungal TF family. We call this family CeGAL, after the highly characterized members: Cep3, whose 3D structure is determined, and GAL4, a eukaryotic TF archetype. We believe that this will not only improve the annotation and classification of the Zn2C6 TF but will also provide critical guidance for future fungal gene regulatory network analyses.

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