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1.
Ann Plast Surg ; 88(3 Suppl 3): S293-S295, 2022 05 01.
Artículo en Inglés | MEDLINE | ID: mdl-35513334

RESUMEN

OBJECTIVE: Dedicated research time is a component of certain plastic surgery programs, and yet, there is limited research examining its impact on academic productivity and career outcomes. This study aimed to assess the effect of dedicated research time on the academic productivity of residents and the likelihood of pursuing an academic career. METHODS: We conducted a cross-sectional study that examined bibliometric indices of integrated plastic surgery residency graduates from 2010 to 2020. Academic productivity was determined by the number of peer-reviewed publications and h-index 1 year after residency graduation. Results were analyzed using descriptive statistics, χ2 test, t test, and logistic regression. RESULTS: Data on plastic surgery residency graduates were analyzed (N = 490 from 46 programs). The mean numbers of publications and h-index per research track graduate were 26.1 and 8.23, respectively. The mean numbers of publications and h-index per nonresearch track graduate were 15.9 and 5.97, respectively. After controlling for the University of Alabama research ranking through multilinear regression analysis, we found that pursuing dedicated research time was an independent predictor of increased h-index and publication output, although it did not predict an increased likelihood of pursuing an academic career. CONCLUSIONS: Participating in dedicated research during residency increases academic productivity, irrespective of the residency program's research rank. Given this finding, offering research years can help support the mission of fostering academic opportunities within plastic surgery.


Asunto(s)
Internado y Residencia , Cirugía Plástica , Bibliometría , Selección de Profesión , Estudios Transversales , Educación de Postgrado en Medicina , Eficiencia , Humanos , Cirugía Plástica/educación
2.
J Cutan Pathol ; 47(6): 530-534, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-32068905

RESUMEN

Central centrifugal cicatricial alopecia (CCCA) is a scarring alopecia that primarily affects women of African descent. Although histopathological features of CCCA have been described, the pathophysiology of this disease remains unclear. To better understand the components of CCCA pathophysiology, we evaluated the composition of the inflammatory infiltrate, the distribution of Langerhans cells (LCs), and the relationship between fibrosis and perifollicular vessel distribution. Our data indicate that CCCA is associated with a CD4-predominant T-cell infiltrate with increased LCs extending into the lower hair follicle. Fibroplasia associated with follicular scarring displaces blood vessels away from the outer root sheath epithelium. These data indicate that CCCA is an inflammatory scarring alopecia with unique pathophysiologic features that differentiate it from other lymphocytic scarring processes.


Asunto(s)
Alopecia/patología , Cicatriz/patología , Folículo Piloso/patología , Células de Langerhans/patología , Negro o Afroamericano/etnología , Alopecia/fisiopatología , Linfocitos T CD4-Positivos/patología , Linfocitos T CD8-positivos/patología , Femenino , Fibrosis/patología , Folículo Piloso/irrigación sanguínea , Humanos , Estudios Retrospectivos
3.
J Biol Chem ; 293(37): 14249-14259, 2018 09 14.
Artículo en Inglés | MEDLINE | ID: mdl-30006347

RESUMEN

In adipose tissue, resistance to insulin's ability to increase glucose uptake can be induced by multiple factors, including obesity. Impaired insulin action may take place at different spatial loci at the cellular or subcellular level. To begin to understand the spatial response to insulin in human subcutaneous adipose tissue (hSAT), we developed a quantitative imaging method for activation of a major signaling node in the glucoregulatory insulin signaling pathway. After treatment with insulin or control media, biopsied tissues were immunostained for Akt phosphorylation at Thr-308/9 (pAkt) and then imaged by confocal fluorescence microscopy automated to collect a large grid of high resolution fields. In hSAT from 40 men and women with obesity, substantial heterogeneity of pAkt densities in adipocyte membranes were quantified in each image mosaic using a spatial unit of at least twice the size of the point spread function. Statistical analysis of the distribution of pAkt spatial units was best fit as the weighted sum of two separate distributions, corresponding to either a low or high pAkt density. A "high pAkt fraction" metric was calculated from the fraction of high pAkt distributed units over the total units. Importantly, upon insulin stimulation, tissues from the same biopsy showed either a minimal or a substantial change in the high pAkt fraction. Further supporting a two-state response to insulin stimulation, subjects with similar insulin sensitivity indices are also segregated into either of two clusters identified by the amount of membrane-localized pAkt.


Asunto(s)
Adipocitos/metabolismo , Insulina/metabolismo , Obesidad/metabolismo , Grasa Subcutánea/metabolismo , Adipocitos/enzimología , Adulto , Anciano , Membrana Celular/metabolismo , Estudios de Cohortes , Activación Enzimática , Femenino , Transportador de Glucosa de Tipo 4/metabolismo , Humanos , Resistencia a la Insulina , Masculino , Microscopía Confocal , Microscopía Fluorescente , Persona de Mediana Edad , Fosforilación , Proteínas Proto-Oncogénicas c-akt/metabolismo , Transducción de Señal , Grasa Subcutánea/enzimología , Adulto Joven
4.
Diabetes Obes Metab ; 21(7): 1642-1651, 2019 07.
Artículo en Inglés | MEDLINE | ID: mdl-30869182

RESUMEN

AIM: To evaluate the efficacy and safety of colchicine for improving metabolic and inflammatory outcomes in people with obesity and metabolic syndrome (MetS). MATERIALS AND METHODS: Adults with obesity and MetS, but who did not have diabetes, were randomized to colchicine 0.6 mg or placebo capsules twice daily for 3 months. The primary outcome was change in insulin sensitivity (SI ) as estimated by insulin-modified frequently sampled intravenous glucose tolerance tests. Secondary outcomes included changes in other metabolic variables and inflammatory markers. RESULTS: Of 40 participants randomized (21 colchicine, 19 placebo), 37 completed the trial. Compared with placebo, colchicine significantly reduced C-reactive protein (P <0.005), erythrocyte sedimentation rate (P <0.01), white blood cell count (P <0.005), and absolute neutrophil count (P <0.001). Change in SI was not significantly different between colchicine and placebo arms (difference: +0.21 × 10-5 ; CI -1.70 to +2.13 × 10-5 min-1 mU-1 mL; P = 0.82). However, changes in some secondary outcomes, including homeostatic model assessment of insulin resistance (P = 0.0499), fasting insulin (P = 0.07) and glucose effectiveness (P = 0.08), suggested metabolic improvements in the colchicine versus placebo group. Adverse events were generally mild and similar in both groups. CONCLUSIONS: This pilot study found colchicine significantly improved obesity-associated inflammatory variables and showed a good safety profile among adults with obesity and MetS who did not have diabetes. These results suggest a larger, adequately powered study should be conducted to determine whether colchicine improves insulin resistance and other measures of metabolic health in at-risk individuals.


Asunto(s)
Antiinflamatorios , Colchicina , Síndrome Metabólico , Adulto , Antiinflamatorios/efectos adversos , Antiinflamatorios/farmacología , Antiinflamatorios/uso terapéutico , Glucemia/análisis , Glucemia/efectos de los fármacos , Proteína C-Reactiva/análisis , Colchicina/efectos adversos , Colchicina/farmacología , Colchicina/uso terapéutico , Femenino , Humanos , Insulina/sangre , Resistencia a la Insulina/fisiología , Masculino , Síndrome Metabólico/complicaciones , Síndrome Metabólico/tratamiento farmacológico , Persona de Mediana Edad , Obesidad/complicaciones , Proyectos Piloto
5.
J Biol Chem ; 292(43): 17703-17717, 2017 10 27.
Artículo en Inglés | MEDLINE | ID: mdl-28848045

RESUMEN

Primary cilia are hairlike extensions of the plasma membrane of most mammalian cells that serve specialized signaling functions. To traffic properly to cilia, multiple cilia proteins rely on palmitoylation, the post-translational attachment of a saturated 16-carbon lipid. However, details regarding the mechanism of how palmitoylation affects cilia protein localization and function are unknown. Herein, we investigated the protein ADP-ribosylation factor-like GTPase 13b (ARL13b) as a model palmitoylated ciliary protein. Using biochemical, cellular, and in vivo studies, we found that ARL13b palmitoylation occurs in vivo in mouse kidneys and that it is required for trafficking to and function within cilia. Myristoylation, a 14-carbon lipid, is shown to largely substitute for palmitoylation with regard to cilia localization of ARL13b, but not with regard to its function within cilia. The functional importance of palmitoylation results in part from a dramatic increase in ARL13b stability, which is not observed with myristoylation. Additional results show that blockade of depalmitoylation slows the degradation of ARL13b that occurs during cilia resorption, raising the possibility that the sensitivity of ARL13b stability to palmitoylation may be exploited by the cell to accelerate degradation of ARL13b by depalmitoylating it. Together, the results show that palmitoylation plays a unique and critical role in controlling the localization, stability, abundance, and thus function of ARL13b. Pharmacological manipulation of protein palmitoylation may be a strategy to alter cilia function.


Asunto(s)
Factores de Ribosilacion-ADP/metabolismo , Lipoilación/fisiología , Factores de Ribosilacion-ADP/genética , Animales , Cilios/enzimología , Cilios/genética , Estabilidad de Enzimas/fisiología , Células HEK293 , Humanos , Ratones , Transporte de Proteínas/fisiología
9.
NPJ Digit Med ; 6(1): 151, 2023 Aug 18.
Artículo en Inglés | MEDLINE | ID: mdl-37596324

RESUMEN

Images depicting dark skin tones are significantly underrepresented in the educational materials used to teach primary care physicians and dermatologists to recognize skin diseases. This could contribute to disparities in skin disease diagnosis across different racial groups. Previously, domain experts have manually assessed textbooks to estimate the diversity in skin images. Manual assessment does not scale to many educational materials and introduces human errors. To automate this process, we present the Skin Tone Analysis for Representation in EDucational materials (STAR-ED) framework, which assesses skin tone representation in medical education materials using machine learning. Given a document (e.g., a textbook in .pdf), STAR-ED applies content parsing to extract text, images, and table entities in a structured format. Next, it identifies images containing skin, segments the skin-containing portions of those images, and estimates the skin tone using machine learning. STAR-ED was developed using the Fitzpatrick17k dataset. We then externally tested STAR-ED on four commonly used medical textbooks. Results show strong performance in detecting skin images (0.96 ± 0.02 AUROC and 0.90 ± 0.06 F1 score) and classifying skin tones (0.87 ± 0.01 AUROC and 0.91 ± 0.00 F1 score). STAR-ED quantifies the imbalanced representation of skin tones in four medical textbooks: brown and black skin tones (Fitzpatrick V-VI) images constitute only 10.5% of all skin images. We envision this technology as a tool for medical educators, publishers, and practitioners to assess skin tone diversity in their educational materials.

10.
Plast Surg (Oakv) ; 30(4): 360-367, 2022 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-36212102

RESUMEN

Background: Studies that have previously validated the use of incisional negative pressure wound therapy (iNPWT) after body contouring procedures (BCP) have provided limited data regarding associated health care utilization and cost. We matched 2 cohorts of patients after BCP with and without iNPWT and compared utilization of health care resources and post-operative clinical outcomes. Methods: Adult patients who underwent abdominoplasty and/or panniculectomy between 2015 and 2020 by a single surgeon were identified. Patients were propensity score matched by body mass index (BMI), gender, smoking history, diabetes mellitus, hypertension, and incision type. Primary outcomes included time to final drain removal, outpatient visits, homecare visits, emergency department visits, and cost. Secondary outcomes included surgical site occurrences (SSO), surgical site infections, reoperations, and revisions. Results: One hundred sixty-six patients were eligible, and 40 were matched (20 with iNPWT and 20 without iNPWT) with a median age of 47 years and BMI of 32 kg/m2. There were no differences in demographics or intraoperative details (all P > .05). No significant differences were found between the cohorts in terms of health care utilization measures or clinical outcomes (all P > .05). Direct cost was significantly greater in the iNPWT cohort (P = .0498). Inpatient length of stay and procedure time were independently associated with increased cost on multivariate analysis (all P < .0001). Conclusion: Consensus guidelines recommend the use of iNPWT in high-risk patients, including abdominal BCP. Our results show that iNPWT is associated with equivalent health care utilization and clinical outcomes, with increased cost. Additional randomized controlled trials are needed to further elucidate the cost utility of this technique in this patient population.


Contexte: Les études qui ont validé antérieurement l'utilisation de la thérapie par pression négative des incisions chirurgicales (iNPWT) après une procédure de remodelage corporel (BCP) n'ont fourni que des données limitées sur l'utilisation et le coût des soins de santé associés. Nous avons apparié deux cohortes de patients après BCP avec ou sans iNPWT et nous avons comparé l'utilisation des ressources de soins de santé ainsi que les résultats cliniques postopératoires. Méthodes: Les patients adultes qui ont subi une abdominoplastie et/ou une panniculectomie effectuée(s) par un seul chirurgien entre 2015 et 2020 ont été identifiés. Les patients ont été appariés avec un score de propension par indice de masse corporelle (IMC), sexe, antécédent de tabagisme, diabète, hypertension et type d'incision. Les critères d'évaluation principaux étaient, notamment, le délai de retrait du dernier drain, les visites au service de consultations externes, les visites au département des urgences et le coût. Les critères de jugement secondaires ont inclus les survenues du site opératoire (SSO), les infections du site opératoire (SSI), les réinterventions et les révisions. Résultats: Il y a eu un total de 166 patients admissibles et 40 ont été appariés (20 avec iNPWT et 20 sans); leur âge médian était de 47 ans et leur IMC de 32 kg/m2. Il n'y a pas eu de différence entre les groupes pour les données démographiques ou les détails peropératoires (P > 0,05 pour tous). Aucune différence significative n'a été trouvée entre les cohortes pour ce qui concerne les mesures d'utilisation des ressources de santé ou les résultats cliniques (P > 0,05 pour tous). Le coût direct a été significativement plus élevé dans la cohorte iNPWT (P = 0,0498). La durée de séjour des patients hospitalisés et la durée de la procédure ont été associées de manière indépendante à une augmentation du coût dans une analyse multifactorielle (P < 0,0001 pour toutes). Conclusion: Les lignes directrices de consensus préconisent l'utilisation de l'iNPWT pour les patients à risque élevé, y compris en cas de remodelage corporel abdominal. Nos résultats montrent que l'iNPWT est associée à un recours équivalent aux soins de santé et à des résultats cliniques identiques, pour un coût plus élevé. Des essais contrôlés à répartition aléatoire supplémentaires sont nécessaires pour préciser le rapport coût/utilité de cette technique dans cette population de patients.

11.
J Surg Educ ; 79(4): 1076-1081, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35491352

RESUMEN

INTRODUCTION: Doximity has become integrated into the residency application process without any clear merit, comparing programs based on reputation and research. Our study aims to gather program directors' and Chiefs/Chairs' perspectives on the Doximity ranking system and to assess what a better system might entail. METHODS: A 16-question survey was sent to 177 program directors and Chief/Chairs of plastic surgery residency programs. The questions covered three categories: (1) demographic information; (2) Doximity ranking perceptions; (3) input on characteristics of a better tool. The responses were statistically analyzed. RESULTS: Ninety-three questionnaires were received (53%). Twenty-nine (31%) respondents represented programs in the Northeast, 23 (25%) South, 20 (21%) Midwest, and 21 (23%) West. Seventy-three (79%) respondents were male and 16 (17%) female. 90% of respondents (n = 84) believe Doximity rankings are not accurate, all indicating their institution should be ranked higher. No significant association between program geography and ranking satisfaction was observed (p = 0.75). Only 33% (n = 31) of respondents were aware of Doximity methodology. Most respondents (95%; n = 88) do not recommend the use of Doximity to medical students. Most participants (87%; n = 81) are willing to share resident case logs to inform a future tool. "Strength of technical training/preparedness" was ranked most highly as important training program qualities. CONCLUSIONS: The results of this program leadership survey show dissatisfaction with and a lack of understanding of the Doximity system. When considering future steps, program leadership support a strength-based categorization system and sharing case logs to guide student decision-making.


Asunto(s)
Internado y Residencia , Estudiantes de Medicina , Cirugía Plástica , Femenino , Humanos , Liderazgo , Masculino , Estudios Prospectivos , Encuestas y Cuestionarios , Estados Unidos
12.
Plast Reconstr Surg Glob Open ; 10(5): e4300, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35539296

RESUMEN

Background: The present study assesses training characteristics, scholastic achievements, and traditional career accomplishments of ethnically underrepresented in medicine (UIM) plastic and reconstructive surgery (PRS) faculty relative to non-UIM PRS faculty. Method: A cross-sectional analysis of core PRS faculty appointed to accredited United States residency training programs (n = 99) was performed. Results: Of the 949 US PRS faculty, a total of 51 (5.4%) were identified as UIM. Compared with non-UIM faculty, there were few differences when evaluating medical education, residency training, pursuit of advanced degrees, and attainment of subspecialty fellowship training. UIM faculty were more likely than non-UIM faculty to have graduated from a medical school outside the United States (25% versus 13%, P = 0.014). In addition, UIM faculty did not differ from non-UIM counterparts in traditional career accomplishments, including promotion to full professor, obtaining NIH funding, serving as program director, receiving an endowed professorship, appointment to a peer-reviewed editorial board, scholarly contributions (H-index and number of publications), and appointment to chief/chair of their division/department. Conclusions: The historical lack of ethnic diversity that comprise US academic PRS faculty persists. This study reveals that those UIM faculty who are able to obtain faculty appointments are equally successful in achieving scholastic success and traditional career accomplishments as their non-UIM counterparts. As we strive toward increasing representation of UIM physicians in academic plastic surgery, the field will benefit from efforts that promote a pipeline for underrepresented groups who traditionally face barriers to entry.

13.
Plast Reconstr Surg Glob Open ; 10(5): e4303, 2022 May.
Artículo en Inglés | MEDLINE | ID: mdl-35539297

RESUMEN

Background: Successful strategies to improve the representation of female and ethnically underrepresented in medicine (UIM) physicians among US plastic and reconstructive surgery (PRS) faculty have not been adequately explored. Accordingly, we aimed to identify programs that have had success, and in parallel gather PRS program directors' and chiefs/chairs' perspectives on diversity recruitment intentionality and strategies. Methods: We conducted a cross-sectional analysis of the demographic composition of female and UIM faculty of PRS residency training programs. Separate lists of programs in the top quartile for female and UIM faculty representation were collated. Additionally, a 14-question survey was administered to program directors and chiefs/chairs of all 99 Accreditation Council for Graduate Medical Education-accredited PRS residency programs. The questions comprised three domains: (1) demographic information; (2) perceptions about diversity; and (3) recruitment strategies utilized to diversify faculty. Results: Female and UIM faculty representation ranged from 0% to 63% and 0% to 50%, respectively. Survey responses were received from program directors and chiefs/chairs of 55 institutions (55% response rate). Twenty-five (43%) respondents felt their program was diverse. Fifty-one (80%) respondents felt diversity was important to the composition of PRS faculty. Active recruitment of diverse faculty and the implementation of a diversity, equity, and inclusion committee were among the most frequently cited strategies to establish a culturally sensitive and inclusive environment. Conclusions: These findings reveal that female and UIM representation among US PRS faculty remains insufficient; however, some programs have had success through deliberate and intentional implementation of diversity, equity, and inclusion strategies.

14.
Cutis ; 107(3): 157-159, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33956610

RESUMEN

Recent studies have highlighted poor representation of darker skin types in medical textbooks and other educational materials. However, whether online educational materials also have poor representation of darker skin types remains less studied, even though trainees are increasingly relying on such resources. We evaluated representation of darker skin types in the Basic Dermatology Curriculum of the American Academy of Dermatology (AAD), a standardized curriculum for dermatology education. Results show that representation of darker skin types in photographs is low. Educators should consider tapping into existing resources for photographs of diverse skin types when designing future curricula.


Asunto(s)
Dermatología , Curriculum , Dermatología/educación , Humanos , Estados Unidos
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