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1.
PLoS One ; 19(6): e0304351, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38838037

RESUMO

INTRODUCTION: Almost all patient-reported outcomes measures (PROMs) are text-based, which impedes accurate completion by low and limited literacy patients. Few PROMs are designed or validated to be self-administered, either in clinical or research settings, by patients of all literacy levels. We aimed to adapt the Patient Reported Outcomes Measurement Information System Upper Extremity Short Form (PROMIS-UE) to a multimedia version (mPROMIS-UE) that can be self-administered by hand and upper extremity patients of all literacy levels. METHODS: Our study in which we applied the Multimedia Adaptation Protocol included seven phases completed in a serial, iterative fashion: planning with our community advisory board; direct observation; discovery interviews with patients, caregivers, and clinic staff; ideation; prototyping; member-checking interviews; and feedback. Direct observations were documented in memos that underwent rapid thematic analysis. Interviews were audio-recorded and documented using analytic memos; a rapid, framework-guided thematic analysis with both inductive and deductive themes was performed. Themes were distilled into design challenges to guide ideation and prototyping that involved our multidisciplinary research team. To assess completeness, credibility, and acceptability we completed additional interviews with member-checking of initial findings and consulted our community advisory board. RESULTS: We conducted 12 hours of observations. We interviewed 17 adult English-speaking participants (12 patients, 3 caregivers, 2 staff) of mixed literacy. Our interviews revealed two distinct user personas and three distinct literacy personas; we developed the mPROMIS-UE with these personas in mind. Themes from interviews were distilled into four broad design challenges surrounding literacy, customizability, convenience, and shame. We identified features (audio, animations, icons, avatars, progress indicator, illustrated response scale) that addressed the design challenges. The last 6 interviews included member-checking; participants felt that the themes, design challenges, and corresponding features resonated with them. These features were synthesized into an mPROMIS-UE prototype that underwent rounds of iterative refinement, the last of which was guided by recommendations from our community advisory board. DISCUSSION: We successfully adapted the PROMIS-UE to an mPROMIS-UE that addresses the challenges identified by a mixed literacy hand and upper extremity patient cohort. This demonstrates the feasibility of adapting PROMs to multimedia versions. Future research will include back adaptation, usability testing via qualitative evaluation, and psychometric validation of the mPROMIS-UE. A validated mPROMIS-UE will expand clinicians' and investigators' ability to capture patient-reported outcomes in mixed literacy populations.


Assuntos
Alfabetização , Multimídia , Medidas de Resultados Relatados pelo Paciente , Humanos , Feminino , Masculino , Pessoa de Meia-Idade , Adulto , Idoso , Letramento em Saúde
2.
Clin Cosmet Investig Dermatol ; 17: 1153-1164, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38800355

RESUMO

Introduction: Shared decision making (SDM) is a collaborative process involving both healthcare providers and patients in making medical decisions, which gains increasing prominence in healthcare practice. But evidence on the level of SDM in medical practice and barriers as well as stimulus during the SDM implementation among aesthetic dermatologists is limited in China. Methods: From July to August 2023, 1938 dermatologists were recruited online in China. Data were collected through an electronic questionnaire covering: (1) demographic features; (2) SDM questionnaire physician version (SDM-Q-Doc); and (3) stimulus and barriers in SDM implementation. Logistic regression was applied to explore factors associated with SDM practice, barriers, and stimulus of SDM implementation, respectively. Results: The 1938 dermatologists included 1329 females (68.6%), with an average age of 35 years. The total SDM score ranged from 0 to 45, with a median value of 40 (IQR: 35-44), and the median stimulus score and barriers scores were 28 (IQR: 24-32) and 19 (IQR: 13-26), respectively. The prevalence of good SDM was 27.2%, logistic regression indicated that female dermatologists (odds ratio, OR=1.21, 95% confidence interval, CI: 0.96-1.51), and dermatologists with more years of aesthetic practice had a higher proportion of good SDM practice (OR was 1.44 for 5-9 years, 1.58 for 10-15 years and 1.77 for over 15 years). Moreover, female dermatologists and dermatologists with higher education level and serviced in private settings had lower barrier scores; female dermatologists and dermatologists with more years of aesthetic practice had higher stimulus scores. Conclusion: Chinese aesthetic dermatologists appear to implement SDM at an active level, with more stimulus and less barriers in SDM implementation. The integration of SDM into clinical practice among dermatologists is beneficial both for patients and dermatologists. Moreover, SDM practice should be strongly promoted and enhanced during medical aesthetics, especially among male dermatologists, dermatologists with less working experience, and those who work at public institutions.

5.
BMJ Open Ophthalmol ; 9(1)2024 Feb 27.
Artigo em Inglês | MEDLINE | ID: mdl-38417914

RESUMO

PURPOSE: The purpose of this study is to assess the research productivity and gender of award recipients of ophthalmology research awards in international societies. METHODS: This is a retrospective, observational study. The study population included award recipients of research awards from 36 ophthalmologic societies (listed on the International Council of Ophthalmology database) in 99 years (1922-2021). A gender-specific pronoun and a photograph of each award recipient were extracted from professional websites to assign their gender. Research productivity levels were retrieved from the Elsevier Scopus author database. The main outcome measures were gender distribution of award recipients per year, mean h-index per year, mean m-quotient per year, mean h-index by society, and mean m-quotient by society. RESULTS: Out of 2506 recipients for 122 awards, 1897 (75.7%) were men and 609 (24.3%) were women. The proportion of woman recipients increased from 0% in 1922 to 41.0% in 2021. Compared with 2000-2010 (19.8%, 109 of 550), women received a greater proportion of awards (48.4%, 459 of 949) in the last decade, from 2011 to 2021. Furthermore, men more often had greater h-index scores and m-quotient scores. CONCLUSIONS: Women received awards (24.3%) at a lower rate than men (75.7%) while also exhibiting lower productivity, supporting the existence of a gender disparity. Our study found that women are under-represented in research awards, and further investigation into award selection processes and gender membership data is recommended.


Assuntos
Distinções e Prêmios , Oftalmologia , Feminino , Humanos , Masculino , Eficiência , Sociedades Médicas , Estudos Retrospectivos
7.
Chem Soc Rev ; 53(5): 2435-2529, 2024 Mar 04.
Artigo em Inglês | MEDLINE | ID: mdl-38294167

RESUMO

Penetrant-induced plasticization has prevented the industrial deployment of many polymers for membrane-based gas separations. With the advent of microporous polymers, new structural design features and unprecedented property sets are now accessible under controlled laboratory conditions, but property sets can often deteriorate due to plasticization. Therefore, a critical understanding of the origins of plasticization in microporous polymers and the development of strategies to mitigate this effect are needed to advance this area of research. Herein, an integrative discussion is provided on seminal plasticization theory and gas transport models, and these theories and models are compared to an exhaustive database of plasticization characteristics of microporous polymers. Correlations between specific polymer properties and plasticization behavior are presented, including analyses of plasticization pressures from pure-gas permeation tests and mixed-gas permeation tests for pure polymers and composite films. Finally, an evaluation of common and current state-of-the-art strategies to mitigate plasticization is provided along with suggestions for future directions of fundamental and applied research on the topic.

9.
JCI Insight ; 9(3)2024 Feb 08.
Artigo em Inglês | MEDLINE | ID: mdl-38194296

RESUMO

Traumatic optic neuropathy (TON) is a devastating condition that can occur after blunt or penetrating trauma to the head, leading to visual impairment or blindness. Despite these debilitating effects, no clinically available therapeutic targets neuroprotection or promotes axon regeneration in this or any optic neuropathy. Limited data in large-animal models are a major obstacle to advancing treatments toward clinical therapeutics. To address this issue, we refined a surgical model of TON in Yucatan minipigs. First, we validated the model by demonstrating visual impairment by flash visual-evoked potential and retinal ganglion cell degeneration and death. Next, we developed and optimized a delivery method and nontoxic dosing of intravitreal brain-derived neurotrophic factor (BDNF) and cAMP. Finally, we showed that intravitreal injection of BDNF and cAMP rescued visual function and protected against retinal ganglion cell death and optic nerve axon degeneration. Together these data in a preclinical large-animal model advance our understanding of and ability to model TON and further identify and develop candidate clinical therapeutics.


Assuntos
Fator Neurotrófico Derivado do Encéfalo , Traumatismos do Nervo Óptico , Animais , Suínos , Fator Neurotrófico Derivado do Encéfalo/metabolismo , Traumatismos do Nervo Óptico/tratamento farmacológico , Axônios/metabolismo , Neuroproteção , Regeneração Nervosa , Porco Miniatura/metabolismo , Transtornos da Visão
10.
Patient ; 17(1): 3-12, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37874464

RESUMO

Health preference research (HPR) is being increasingly conducted to better understand patient preferences for medical decisions. However, patients vary in their desire to play an active role in medical decisions. Until now, few studies have considered patients' preferred roles in decision making. In this opinion paper, we advocate for HPR researchers to assess and account for role preferences in their studies, to increase the relevance of their work for medical and shared decision making. We provide recommendations on how role preferences can be elicited and integrated with health preferences: (1) in formative research prior to a health preference study that aims to inform medical decisions or decision makers, (2a) in the development of health preference instruments, for instance by incorporating a role preference instrument and (2b) by clarifying the respondent's role in the decision prior to the preference elicitation task or by including role preferences as an attribute in the task itself, and (3) in statistical analysis by including random parameters or latent classes to raise awareness of heterogeneity in role preferences and how it relates to health preferences. Finally, we suggest redefining the decision process as a model that integrates the role and health preferences of the different parties that are involved. We believe that the field of HPR would benefit from learning more about the extent to which role preferences relate to health preferences, within the context of medical and shared decision making.


Assuntos
Tomada de Decisão Clínica , Preferência do Paciente , Humanos , Tomada de Decisão Compartilhada , Projetos de Pesquisa , Pacientes , Tomada de Decisões , Participação do Paciente
11.
Cancer ; 130(11): 2051-2059, 2024 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-38146683

RESUMO

BACKGROUND: Communication between caregivers and clinical team members is critical for transitional care, but its quality and potential impact on outcomes are not well understood. This study reports on caregiver-reported quality of communication with clinical team members in the postpancreatectomy period and examines associations of these reports with patient and caregiver outcomes. METHODS: Caregivers of patients with pancreatic and periampullary malignancies who had undergone pancreatectomy were surveyed. Instrument measures assessed care experiences using the Caregiver Perceptions About Communication with Clinical Team Members (CAPACITY) instrument. The instrument has two main subscales: communication, assessing the extent to which providers helped caregivers comprehend details of clinical visits, and capacity, defined as the extent to which providers assessed whether caregivers were able to care for patients. RESULTS: Of 265 caregivers who were approached, 240 (90.6%) enrolled in the study. The mean communication and capacity subscale scores were 2.7 ± 0.6 and 1.5 ± 0.6, respectively (range, 0-4 [higher = better]). Communication subscale scores were lower among caregivers of patients who experienced (vs. those who did not experience) a 30-day readmission (2.6 ± 0.5 vs. 2.8 ± 0.6, respectively; p = .047). Capacity subscale scores were inversely associated with restriction in patient daily activities (a 0.04 decrement in the capacity score for every 1 point in daily activity restriction; p = .008). CONCLUSIONS: After pancreatectomy, patients with pancreatic and periampullary cancer whose caregivers reported worse communication with care providers were more likely to experience readmission. Caregivers of patients with greater daily activity restrictions were less likely to report being asked about the caregiver's skill and capacity by clinicians. PLAIN LANGUAGE SUMMARY: This prospective study used a validated survey instrument and reports on the quality of communication between health care providers and caregivers as reported by caregivers of patients with pancreatic and periampullary cancer after pancreatectomy. In an analysis of 240 caregivers enrolled in the study, lower communication scores (the extent to which providers helped caregivers understand clinical details) were associated with higher odds of 30-day patient readmission to the hospital. In addition, lower capacity scores (the extent to which providers assessed caregivers' ability to care for patients) were associated with greater impairment in caregivers. The strikingly low communication quality and capacity assessment scores suggest substantial room for improvement, with the potential to improve both caregiver and patient outcomes.


Assuntos
Cuidadores , Comunicação , Pancreatectomia , Neoplasias Pancreáticas , Humanos , Neoplasias Pancreáticas/cirurgia , Cuidadores/psicologia , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Adulto , Ampola Hepatopancreática , Inquéritos e Questionários , Readmissão do Paciente/estatística & dados numéricos , Neoplasias do Ducto Colédoco/cirurgia
12.
Transl Vis Sci Technol ; 12(12): 12, 2023 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-38085248

RESUMO

Purpose: Defining the regenerative response following various types of corneal chemical and mechanical injuries is important for understanding the pathophysiology of the injury and evaluating the effectiveness of the therapies. This study characterizes corneal epithelial healing in a murine chemical and mechanical injury model. Methods: Four groups of 10 mice each received complete corneolimbal injuries by AlgerBrush, AlgerBrush/thermal, NaOH (0.5 N), or ethanol. Slit-lamp and optical coherence tomography examinations were performed daily for 14 days. Corneal opacity (CO) and neovascularization (NV) were evaluated. The origin of the regenerated epithelium was illustrated by anti-cytokeratin 12 (K12) and anti-K13. The height of regenerated corneal epithelium and intraepithelial free nerve endings (FNEs) stained with anti-ßIII-tubulin were measured. The amount of fibrosis was measured by anti-α-smooth muscle actin (α-SMA) monoclonal antibody in the different groups. Statistical analysis was performed by ANOVA and t-test. Results: Corneal opacity and neovascularization were markedly higher in the NaOH and AlgerBrush/thermal groups. Molecular studies revealed the following: Regenerated corneal epithelium thickness was less than normal in all groups, the AlgerBrush group had the shortest height of the regenerated epithelium, ßIII-tubulin was expressed in the entire height of corneal epithelium in all groups except in the AlgerBrush group, and K12 was replaced by K13 in all groups. Conclusions: Corneal wound healing is more effective following chemical injuries in terms of epithelial thickness. Inflammation may play an important role in the outcome. Translational Relevance: Inflammation following different injuries may be redirected to be more effective in corneal regeneration and clarity.


Assuntos
Opacidade da Córnea , Epitélio Corneano , Animais , Camundongos , Inflamação , Hidróxido de Sódio , Tubulina (Proteína)
13.
Stem Cell Reports ; 18(12): 2482-2497, 2023 12 12.
Artigo em Inglês | MEDLINE | ID: mdl-38039970

RESUMO

Corneal organoids are useful tools for disease modeling and tissue transplantation; however, they have not yet been well studied during maturation. We characterized human iPSC-derived corneal organoids at 1, 2, 3, and 4 months of development using single-cell RNA sequencing to determine the cellular heterogeneity at each stage. We found pluripotent cell clusters committed to epithelial cell lineage at 1 month; early corneal epithelial, endothelial, and stromal cell markers at 2 months; keratocytes as the largest cell population at 3 months; and a large epithelial cell population at 4 months. We compared organoid to fetal corneal development at different stages and found that 4-month organoids closely resemble the corneal cellular complexity of the fetal (16 post conception week) and adult cornea. Using RNA velocity trajectory analysis, we found that less differentiated cells appear to give rise to corneal epithelial cells during development.


Assuntos
Córnea , Organoides , Adulto , Humanos , Diferenciação Celular/genética , Endotélio Corneano , Perfilação da Expressão Gênica
14.
Psychother Psychosom ; 92(6): 399-409, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38118426

RESUMO

INTRODUCTION: Adverse events (AEs) are a leading cause of patient morbidity and mortality, greatly impacting healthcare providers' well-being (second victim (SV) phenomenon). Since it is not accurately captured by existing psychometric instruments, we developed a clinimetric instrument for assessing SVs' emotional distress before and after an AE. METHODS: Content validity and clinical utility of the WITHSTAND-PSY Questionnaire (WS-PSY-Q) were examined using cognitive interviews. Rasch analysis (n = 284) was applied for clinimetric assessment (i.e., construct, concurrent, and clinical validity, internal consistency), considering two crucial psychological facets of the SV phenomenon (1st: emotional impact of the AE, 2nd: current emotional state). RESULTS: The Rasch partial credit model was used. The 1st facet demonstrated overall acceptable clinimetric properties with the subscale anxiety meeting clinimetric threshold values (e.g., all items with ordered thresholds, Loevinger's coefficient h ≥ 0.40; Person Separation Reliability Index (PSI) = 0.7). The 2nd facet showed overall better clinimetric properties for both subscales (e.g., h ≥ 0.40, PSI = 0.82 and 0.79, respectively; receiver operating characteristic area of 0.80 and 0.86, respectively). For both datasets, item fit statistics, except those for item 19, were within the critical range (z-score < ±2.5), and meaningful differential functioning analysis was observed for only 4 (out of 24) items. Local dependency was not observed, except for two item couples in the depression subscales. CONCLUSIONS: The WS-PSY-Q is the first clinimetric tool assessing SVs' emotional distress. It should be regarded as part of the armamentarium used by clinicians to assess in-depth healthcare providers' psychological reactions in the aftermath of an AE to mitigate burnout and allostatic overload.


Assuntos
Ansiedade , Angústia Psicológica , Humanos , Reprodutibilidade dos Testes , Pessoal de Saúde , Inquéritos e Questionários , Psicometria
15.
Womens Health (Lond) ; 19: 17455057231219613, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38130083

RESUMO

BACKGROUND: Although women remain historically underrepresented in medical achievement awards, gender distribution of award recipients in ophthalmology in Canada remain to be explored based on research productivity metrics. OBJECTIVE: To characterize the gender distribution of award recipients among the main Canadian national ophthalmological societies and subspecialty affiliates based on research productivity, graduate degrees, affiliated institution, and award type. DESIGN: Retrospective, observational study. METHODS: Award recipients were selected from the Canadian Ophthalmological Society (COS), Canadian Association of Paediatric Ophthalmology and Strabismus (CAPOS); Canadian Cornea, External Disease, and Refractive Surgery Society (CCEDRSS); Canadian Council of Ophthalmology Residents (CCOR) Research Proposal Award; and Canadian Glaucoma Society (CGS). The recipients' gender was determined by web search for the gender-specific pronoun, profile photograph check, or using Gender-API. Outcomes included gender distribution of recipients per award, society, year, and training level and differences in research productivity. RESULTS: Thirteen special awards were given to 255 recipients (215 individuals) from 1995 to 2022. In total, 31% of recipients were women, the majority being from Canada. Women had a significantly lower median h-index (2.0 (0-62) women versus 4.0 (0-81) men, p = 0.001) and number of published documents (3.0 (0-213) women versus 8.0 (0-447) men, p < 0.001). On stratified analyses by type of award (research or lifetime achievement) and level of training (trainee or ophthalmologist), significant differences were found for mean h-index and number of publications for awardees within the research category (p = 0.01 and p = 0.02, respectively) and trainee level (p = 0.01 and p = 0.02, respectively). Overall, women's proportion rates in awards did not reach parity in 27 out of the 28 years analyzed. CONCLUSION: Women were confirmed to be historically minored in proportion among the prominent society awards in Canada, with attested research disparity possibly explaining some of this bias. These findings require further confirmation in larger cohorts accounting for additional educational, institutional, and provincial factors. REGISTRATION: Not applicable.


Assuntos
Distinções e Prêmios , Oftalmologia , Feminino , Humanos , Masculino , Canadá , Estudos Retrospectivos , Sociedades Médicas
17.
BMJ Open Ophthalmol ; 8(1)2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37797981

RESUMO

OBJECTIVE: Functional outcomes following facial and ocular trauma are time-sensitive and require prompt evaluation to minimise long-term vision loss, yet few studies have systematically evaluated disparities in the management of these cases. This study investigates whether a patient's race/ethnicity, primary language, insurance status, gender or age affects receipt of ophthalmology consultation for facial trauma. METHODS AND ANALYSIS: This study was a retrospective cohort analysis of patients from the Elmhurst City Hospital Trauma Registry in Queens, New York who were seen for facial trauma including open globe injuries and orbital fractures between January 2014 and May 2016. RESULTS: Of the 264 patients included, 43% reported as Hispanic, 23% white, 11% Asian, 8% black and 15% other/unknown. After controlling for confounding variables by multivariable logistic regression, neither race/ethnicity, gender, nor primary language were significantly associated with the likelihood of receiving an ophthalmology consult. However, patients with private insurance had 2.57 times greater odds of receiving an ophthalmology consultation than those with Medicaid or state corrections insurance (95% CI 1.37 to 4.95). As age increased, the likelihood of receiving an ophthalmology consultation decreased (p=0.009); patients 60 years of age and older had one-third the odds of ophthalmology consultation as younger patients (OR 0.33; 95% CI 0.16 to 0.68). CONCLUSIONS: This study highlights that lack of ophthalmology consultation in patients with facial trauma is linked to age and underinsurance. Extra attention must be paid during primary assessments to ensure elderly patients and those with public insurance have equitable access to timely and appropriate care for facial trauma.


Assuntos
Oftalmologia , Estados Unidos , Humanos , Idoso , Estudos Retrospectivos , Disparidades Socioeconômicas em Saúde , Etnicidade , Encaminhamento e Consulta
18.
J Am Med Dir Assoc ; 24(12): 1910-1917.e3, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37690461

RESUMO

OBJECTIVES: This study evaluated the impact of standardized care protocols, as a part of a quality improvement initiative (J10ohns Hopkins Community Health Partnership, J-CHiP), on hospital readmission rates for patients with a diagnosis of congestive heart failure (CHF) and/or chronic obstructive pulmonary disease (COPD) after being discharged to skilled nursing facilities (SNFs). DESIGN: A retrospective study comparing 30-day hospital readmission rates the year before and 2 years following the implementation of the care protocol interventions. SETTINGS AND PARTICIPANTS: Patients discharged from Johns Hopkins Hospital or Johns Hopkins Bayview Medical Center to the participating SNFs diagnosed with CHF and/or COPD. METHODS: The standardized protocols included medical provider or nurse assessments on SNF admission, multidisciplinary care planning, and medication management to avoid unplanned readmissions to the hospital. Descriptive analyses were conducted to illustrate the 30-day readmission rates before and after protocol implementation. RESULTS: There were 1128 patients in the pre-J-CHiP cohort and 2297 patients in the J-CHiP cohort. About half of the patients with a recorded diagnosis of CHF without COPD had the standardized protocol initiated, whereas 47% of the patients with a recorded diagnosis of COPD without CHF had the standardized protocol initiated. Of patients with recorded diagnoses of COPD and CHF, 49% had both protocols initiated. A reduction in the readmission rate was observed for patients with COPD protocols, from 23.5% in 2011 to 12.1% in 2015. However, fluctuations in the readmission rates were observed for patients who initiated the CHF protocols. CONCLUSIONS AND IMPLICATIONS: There were improvements in the readmission rates in this study, especially for patients who had initiated standardized care protocols in the SNFs. Our findings demonstrate great value in standardizing care management and strengthening collaboration with chronic care settings to facilitate a smooth transition of medically complex patients discharged from large health care systems. Future interventions could consider assessing nonclinical factors that may impact preventable hospital readmissions.


Assuntos
Readmissão do Paciente , Doença Pulmonar Obstrutiva Crônica , Humanos , Estados Unidos , Estudos Retrospectivos , Instituições de Cuidados Especializados de Enfermagem , Hospitalização , Alta do Paciente , Doença Pulmonar Obstrutiva Crônica/terapia
19.
Glycoconj J ; 40(5): 587-608, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37695422

RESUMO

The binding property of Con A has been studied intensively and applied widely to glycoconjugates / glycobiology for over 80 years. However, its role and functional relationship of Con A with these mammalian structural units, glycotopes, N-glycan chains, as well as their polyvalent forms in N-glycoproteins involved in the Con A-glycan interactions have not been well defined and organized. In this study, the recognition factors involved in these interactions were analyzed by our well developed method- the enzyme linked lectinosorbent (ELLSA) and inhibition assay. Based on all the data obtained, it is concluded that Con A, as previously reported, has a relatively broad and wide recognition ability of the Manα1 → and Glcα1 → related glycans. It reacted not only strongly with yeast mannan and glycogens, but also bound well with a large number of mammalian N-glycans, including the N-glycans of rat sublingual gp (RSL), human Tamm-Horsfall glycoprotein (THGP), thyroglobulin and lactoferrin. The recognition specificity of Con A towards ligands, expressed by Molar Relative Potency (Molar R.P.), in a decreasing order is as follows: α1 → 3, α1 → 6 Mannopentaose (M5) and Biantennary N-linked core pentasaccharide (MDi) ≥ α1 → 3, α1 → 6 Mannotriose (M3) > Manα1 → 3Man (α1 → 3Mannobiose), Manα1 → 2Man (α1 → 2Mannobiose), Manα1 → 6Man (α1 → 6Mannobiose), Manα1 → 4Man (α1 → 4Mannobiose) > GlcNAcß1 → 2Man (ß1 → 2 N-Acetyl glucosamine-mannose) > Manα1 → /Glcα1 → > Man > Glc, while Gal / GalNAc were inactive. Furthermore, the Man related code system, in this study, is proposed to express by both numbers of Man and GlcNAcß1 → branches (M3 to M9 / MMono to Penta etc.) and a table of three Manα1 → and Glcα1 → related biomasses of six recognition factors involved in the Con A-glycan interactions has also been demonstrated. These themes should be one of the most valuable advances since 1980s.


Assuntos
Glicoproteínas , Polissacarídeos , Animais , Humanos , Ratos , Polissacarídeos/química , Glicoproteínas/química , Concanavalina A , Glicoconjugados , Mamíferos/metabolismo
20.
JAMA Ophthalmol ; 141(10): 937-946, 2023 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-37651129

RESUMO

Importance: Despite increasing use of cigarettes and electronic cigarettes (e-cigarettes) and related health effects among youth, few studies have reported their effects on eyes. Objective: To examine the frequency and severity of ocular symptoms (ocular discomfort, pain, burning, itching, redness, dryness, glare, blurriness, strain, and headaches) in young e-cigarette and cigarette users. Design, Setting, and Participants: In an observational cross-sectional study, a survey conducted in May 6 to 14, 2020, asked participants about use (ever, past 30 days, and past 7 days) of e-cigarettes and cigarettes. The participants included US individuals aged 13 to 24 years. Main Outcomes and Measures: Associations between vision-related outcomes (general vision, severity/frequency of ocular symptoms) and tobacco use were analyzed using weighted multivariable logistic regressions, adjusting for sociodemographic factors, contact lens use, and other combustible use. Results: There were 2168 never users, 2183 ever users, 1092 past 30-day users, and 919 past 7-day users of e-cigarettes; 55.9% of e-cigarette ever users also used cigarettes (dual users). Of the 4351 respondents, 63.8% identified as female, and mean (SD) age was 19.1 (2.9) years. Between 1.1% and 3.9% of ever dual users reported severe to very severe ocular symptoms; between 0.9% and 4.3% reported daily symptoms, which was higher than the proportion of symptoms in e-cigarette- or cigarette-only users. Past 7-day dual users had more severe itching (adjusted odds ratio [AOR], 2.37; 95% CI, 1.36-4.13; P = .002), redness (AOR, 2.58; 95% CI, 1.50-4.46; P = .001), dryness (AOR, 2.89; 95% CI, 1.64-5.08; P < .001), glare (AOR, 2.56; 95% CI, 1.50-4.35; P = .001), blurriness (AOR, 2.47; 95% CI, 1.36-4.50; P = .003), headaches (AOR, 2.31; 95% CI, 1.34-4.00; P = .003); and more frequent pain (AOR, 3.45; 95% CI, 2.09-5.68; P < .001), burning (AOR, 3.08; 95% CI, 1.86-5.09; P < .001), and redness (AOR, 2.72; 95% CI, 1.69-4.36; P < .001) than all other participants. Past 30-day dual users had more severe dryness (AOR, 2.65; 95% CI, 1.61-4.36; P < .001) and more frequent pain (AOR, 3.33; 95% CI, 2.12-5.21; P < .001) than all other participants. Ever dual users experienced more severe dryness (AOR, 1.60; 95% CI, 1.05-2.43; P = .03) and blurriness (AOR, 1.79; 95% CI, 1.21-2.64; P = .003) and more frequent pain (AOR, 1.69; 95% CI, 1.13-2.53; P = .01) and blurriness (AOR, 1.63; 95% CI, 1.13-2.36; P = .009) than never users. Conclusions and Relevance: In this cross-sectional US study, adolescents and young adult users of both e-cigarettes and cigarettes had a higher likelihood of experiencing severe and frequent ocular symptoms, with past 7-day users reporting more symptoms than past 30-day users or ever users. These findings provide additional reasons for users of e-cigarettes and cigarettes to reduce their tobacco use to possibly prevent or minimize ocular symptoms.


Assuntos
Sistemas Eletrônicos de Liberação de Nicotina , Produtos do Tabaco , Humanos , Adolescente , Feminino , Adulto Jovem , Estudos Transversais , Produtos do Tabaco/estatística & dados numéricos , Dor , Cefaleia/diagnóstico , Cefaleia/epidemiologia , Cefaleia/etiologia , Prurido , Fumar/efeitos adversos , Fumar/epidemiologia
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