Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 17 de 17
Filtrar
1.
J Surg Res ; 283: 485-493, 2023 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-36436284

RESUMEN

INTRODUCTION: Rapid accumulation of data in surgical and medical oncology has changed the treatment landscape for patients with stage-III melanoma, introducing options for active surveillance and adjuvant systemic therapy; however, these options have increased the complexity of decision making. METHODS: We conducted an explanatory sequential mixed-methods study consisting of surveys and semistructured interviews among patients diagnosed with stage-III melanoma at a single institution from August 2019 to December 2021. The survey included the validated 30-point satisfaction with decision scale (SWD). The interview guide was developed using a shared decision-making framework. RESULTS: Twenty-six participants completed the survey (response rate 40%) and 17 were interviewed. In the survey, 69% of participants reported receiving a recommendation for active surveillance and 23% received a recommendation for adjuvant systemic therapy. Overall SWD for treatment of the lymph node basin and adjuvant systemic therapy was high at 27.94 and 26.21 out of 30, respectively. In the interviews, participants stressed the importance of the physician's recommendation as well as the desire to minimize intervention and avoid potential side effects in their decisions. However, they demonstrated persistent knowledge gaps in their understanding of the treatment options. CONCLUSIONS: Like other cancer types where the option for active surveillance exists, the physician's recommendation is influential in shaping decisions for patients with stage-III melanoma. Physicians can improve shared decision making in this complex treatment landscape through improved multidisciplinary collaboration and mechanisms for ensuring patients' understanding of the treatment options.


Asunto(s)
Melanoma , Prioridad del Paciente , Humanos , Satisfacción del Paciente , Melanoma/patología , Satisfacción Personal , Toma de Decisiones , Melanoma Cutáneo Maligno
2.
Ann Surg ; 277(5): e1106-e1115, 2023 05 01.
Artículo en Inglés | MEDLINE | ID: mdl-35129464

RESUMEN

OBJECTIVE: The aim of this study was to determine overall trends and center-level variation in utilization of completion lymph node dissection (CLND) and adjuvant systemic therapy for sentinel lymph node (SLN)-positive melanoma. SUMMARY BACKGROUND DATA: Based on recent clinical trials, management options for SLN-positive melanoma now include effective adjuvant systemic therapy and nodal observation instead of CLND. It is unknown how these findings have shaped practice or how these contemporaneous developments have influenced their respective utilization. METHODS: We performed an international cohort study at 21 melanoma referral centers in Australia, Europe, and the United States that treated adults with SLN-positive melanoma and negative distant staging from July 2017 to June 2019. We used generalized linear and multinomial logistic regression models with random intercepts for each center to assess center-level variation in CLND and adjuvant systemic treatment, adjusting for patient and disease-specific characteristics. RESULTS: Among 1109 patients, performance of CLND decreased from 28% to 8% and adjuvant systemic therapy use increased from 29 to 60%. For both CLND and adjuvant systemic treatment, the most influential factors were nodal tumor size, stage, and location of treating center. There was notable variation among treating centers in management of stage IIIA patients and use of CLND with adjuvant systemic therapy versus nodal observation alone for similar risk patients. CONCLUSIONS: There has been an overall decline in CLND and simultaneous adoption of adjuvant systemic therapy for patients with SLN-positive melanoma though wide variation in practice remains. Accounting for differences in patient mix, location of care contributed significantly to the observed variation.


Asunto(s)
Melanoma , Ganglio Linfático Centinela , Neoplasias Cutáneas , Adulto , Humanos , Ganglio Linfático Centinela/cirugía , Ganglio Linfático Centinela/patología , Neoplasias Cutáneas/cirugía , Biopsia del Ganglio Linfático Centinela , Estudios de Cohortes , Melanoma/cirugía , Melanoma/tratamiento farmacológico , Escisión del Ganglio Linfático , Estudios Retrospectivos
3.
Am J Surg ; 225(2): 335-340, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36180302

RESUMEN

BACKGROUND: Data suggest variation in utilization of completion lymph node dissection (CLND) and adjuvant systemic therapy (AT) for sentinel lymph node-positive melanoma. We aimed to explore how clinicians consider multidisciplinary treatment options. METHODS: We conducted semi-structured interviews of surgical oncologists, medical oncologists, and otolaryngologists to produce a thematic analysis. RESULTS: Participants (n = 26) described melanoma care as inherently "multidisciplinary," noting the importance of conversations facilitated by shared clinic days or space. Despite believing that their practice mirrored other clinicians, participants revealed diverging perspectives on CLND and AT. Multidisciplinary care presented challenges for surveillance as surgeons expressed desire to retain ownership of patients but did not feel comfortable overseeing AT needs. Participants questioned the fidelity of nodal ultrasounds, noted redundancy in their roles, and described a "surveillance burden" for patients. CONCLUSION: Opportunities exist to improve multidisciplinary melanoma care through broader consensus of how to translate emerging data into patient care and delineating surveillance roles.


Asunto(s)
Melanoma , Ganglio Linfático Centinela , Neoplasias Cutáneas , Humanos , Neoplasias Cutáneas/cirugía , Neoplasias Cutáneas/patología , Biopsia del Ganglio Linfático Centinela , Melanoma/cirugía , Melanoma/patología , Escisión del Ganglio Linfático , Ganglio Linfático Centinela/patología
4.
J Surg Educ ; 79(6): 1447-1453, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35732577

RESUMEN

OBJECTIVE: To evaluate the research and career interests of aspiring academic surgeons and determine the influence of demographic factors. DESIGN: Cross-sectional survey SETTING: Single institution, academic general surgery residency program PARTICIPANTS: Medical students invited to interview during 2019-2020 and 2020-2021 residency cycle RESULTS: One hundred fifty-four of 160 (96%) potential respondents representing 63 medical schools completed the survey, American Association for Public Opinion Research Response Rate 6. Fifty-three percent of the study population was female. Seventeen percent identified as Black, 14% Asian, 13% Latinx, 50% white, and 6% other. Respondents were most interested in education, professional development, and surgical culture (32%) followed by basic and translational science (23%), global and community health (20%), and health services (18%). On multiple logistic regression, interest in global/community health was associated with identifying as Black (OR 5.9 [2.0, 17.8] p = 0.001) and female (OR 2.7 [1.0, 7.0] p = 0.044). A plurality of participants were undecided on future specialty (n = 63, 41%). The most common specialty interests were surgical oncology (n = 28, 18%); trauma, acute care, or surgical critical care (n = 21, 14%); pediatric and cardiothoracic surgery (n = 20 for each, 13%); and abdominal transplant (n = 15, 10%). CONCLUSIONS: In this cross-sectional survey of highly competitive academic general surgery applicants, respondents who were underrepresented in medicine (URiM) and women were more interested in research fields with a history of lower relative NIH funding. In light of these findings, academic programs seeking a more diverse residency workforce should consider strategies beyond recruitment to promote the scholarly achievement of women and URiM residents.


Asunto(s)
Cirujanos , Femenino , Humanos , Niño , Estudios Transversales , Recursos Humanos , Organizaciones , Demografía
5.
J Surg Educ ; 79(5): 1088-1092, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35581113

RESUMEN

OBJECTIVE: The taxing nature of surgery residency is well-documented in the literature, with residents demonstrating high rates of burnout, depression, suicidal thoughts, sexual harassment, and racial discrimination. Mentoring has been shown to improve camaraderie, address challenges of underrepresentation in medicine, and be associated with lower burnout. However, existing formal mentoring programs tend to be career-focused and hierarchal without opportunity to discuss important sociocultural issues. An innovative approach is needed to address these cultural and anthropological issues in surgery residencies while creating camaraderie and learning alternative perspectives across different levels of training. We sought to describe the framework we used to fill these needs by creating and implementing a novel mentoring program. DESIGN: A vertical, near-peer mentoring system of 7 groups was created consisting of the following members: 1 to 2 medical students, a PGY-1 general surgery resident, a PGY-4 research resident, and a faculty member. Meetings occur every 3 to 4 months in a casual setting with the first half of the meeting dedicated to intentional reflection and the second half focused on an evidence-based discussion regarding a specific topic in the context of surgery (i.e., burnout, discrimination, allyship, and finding purpose). SETTING: Program implementation took place at the University of Michigan in Ann Arbor, MI. PARTICIPANTS: Medical students, general surgery residents, and general surgery faculty were recruited. CONCLUSIONS: We have successfully launched the pilot year of a cross-spectrum formal mentoring program in general surgery. This program emphasizes camaraderie throughout training while providing opportunities for evidence-based discussion regarding sociocultural topics. We have included increased opportunities for community inclusivity and mentoring while allowing trainees and faculty members to discuss sensitive topics in a supportive environment. We plan to continue developing the program with robust evaluation and to expand the program to other surgical specialties and to other institutions.


Asunto(s)
Agotamiento Profesional , Cirugía General , Internado y Residencia , Tutoría , Acoso Sexual , Estudiantes de Medicina , Cirugía General/educación , Humanos , Mentores , Evaluación de Programas y Proyectos de Salud
6.
Ann Surg Oncol ; 2022 Apr 05.
Artículo en Inglés | MEDLINE | ID: mdl-35380309

RESUMEN

BACKGROUND: Since 2004, national guidelines have supported the omission of sentinel lymph node biopsy (SLNB) and radiotherapy for women ≥ 70 years of age with early-stage, hormone receptor-positive (HR+) breast cancer, but many women continue to receive at least one of these services. Provider- and patient-level factors may contribute to persistent utilization, but the role of facility-level factors is unknown. We aimed to determine facility-level variation of SLNB and adjuvant radiotherapy utilization in older women with early-stage, HR+ breast cancer undergoing breast-conserving surgery (BCS). Additionally, we aimed to explore factors associated with SLNB and radiotherapy utilization and the intra-facility correlation in their utilization. METHODS: We conducted a retrospective cohort study using a statewide registry of claims data. We included women ≥70 years of age diagnosed with breast cancer who underwent BCS from 2012 to 2019 at 80 hospitals in the Michigan Value Collaborative. The main outcome was inter-facility rates and variation of SLNB and radiotherapy, as well as intra-facility correlation in their utilization. RESULTS: The cohort included 7253 women (median age 77 years). Only 20% (n = 1440) underwent BCS alone, whereas 71% (n = 5122) underwent SLNB and 52% (n = 3793) received radiotherapy. Inter-facility rates of SLNB ranged from 35 to 82% (median 70%), and radiotherapy ranged from 19 to 72% (median 49%). SLNB and radiotherapy were positively correlated (r = 0.27, p = 0.016). CONCLUSIONS: SLNB and radiotherapy rates remain high with significant variation in utilization at the facility level. High utilizers of SLNB are likely to be high utilizers of radiotherapy, suggesting the opportunity for strategic targeting of these facilities and their clinicians.

7.
J Surg Oncol ; 125(8): 1292-1300, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35239187

RESUMEN

BACKGROUND AND OBJECTIVES: Retroperitoneal and abdominopelvic sarcomas are rare heterogeneous malignancies. The only therapy proven to improve disease-free survival (DFS) is R0/R1 surgical resection. We sought to analyze whether additional factors such as radiation and systemic therapy were associated with DFS and abdominal recurrence-free survival (RFS). METHODS: Retrospective review of adults (≥18) with resectable abdominopelvic and retroperitoneal sarcomas who underwent intent-to-cure surgery at a high-volume tertiary referral center between 1998 and 2015. The main outcome measures were DFS and abdominal RFS. RESULTS: Overall, 159 patients met the criteria for inclusion. Median follow-up was 4.8 years (range 0.1-18.9 years). The most common histology was liposarcoma (49%). Systemic therapy was administered to 48% of patients and was not associated with improved outcomes. The neoadjuvant radiotherapy group (11%) had improved adjusted DFS (5.46 years, 95% CI [3.68, 7.24] vs. 3.1 years, 95% CI [2.48, 3.73]) and abdominal RFS (6.14 years, 95% CI [4.38, 7.89] vs. 3.22 years, 95% CI [2.61, 3.84]). The adjuvant radiotherapy group (19%) had no improvement. CONCLUSIONS: In a cohort of patients undergoing resection for retroperitoneal or abdominopelvic sarcoma, neoadjuvant radiation improved DFS and abdominal RFS. A follow-up of over three years was needed to appreciate a difference in outcomes.


Asunto(s)
Liposarcoma , Neoplasias Retroperitoneales , Sarcoma , Neoplasias de los Tejidos Blandos , Adulto , Supervivencia sin Enfermedad , Humanos , Liposarcoma/patología , Recurrencia Local de Neoplasia/patología , Neoplasias Retroperitoneales/patología , Neoplasias Retroperitoneales/cirugía , Estudios Retrospectivos , Sarcoma/patología , Sarcoma/cirugía
9.
Ann Surg Oncol ; 29(2): 1051-1059, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-34554342

RESUMEN

BACKGROUND: In most women ≥ 70 years old with hormone-receptor-positive breast cancer, axillary staging and adjuvant radiotherapy provide no survival advantage over surgery and hormone therapy alone. Despite recommendations for their omission, sentinel lymph node biopsy (SLNB) and adjuvant radiotherapy rates remain high. While treatment side effects are well documented, less is known about the incremental spending associated with SLNB and adjuvant radiotherapy. METHODS: Using a statewide multipayer claims registry, we examined spending associated with breast cancer treatment in a retrospective cohort of women ≥ 70 years old undergoing surgery. RESULTS: 9074 women ≥70 years old underwent breast cancer resection between 2012 and 2019, with 78% (n = 7122) receiving SLNB and/or adjuvant radiotherapy within 90 days of surgery. Women undergoing SLNB were more likely to receive radiation (51% vs. 28%; p < 0.001 and OR = 2.68). Average 90-day spending varied substantially based upon treatment received, ranging from US$10,367 (breast-conserving surgery alone) to US$27,370 (mastectomy with SLNB and adjuvant radiotherapy). The relative increases in 90-day treatment spending in the breast-conserving surgery cohort was 65% for SLNB, 82% for adjuvant radiotherapy, and 120% for both treatments. CONCLUSIONS: SLNB and adjuvant radiotherapy have significant spending implications in older women with breast cancer, even though they are unlikely to improve survival.


Asunto(s)
Neoplasias de la Mama , Anciano , Axila/patología , Neoplasias de la Mama/cirugía , Femenino , Humanos , Escisión del Ganglio Linfático , Mastectomía , Estadificación de Neoplasias , Estudios Retrospectivos , Biopsia del Ganglio Linfático Centinela
10.
J Surg Res ; 270: 503-512, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-34801801

RESUMEN

BACKGROUND: National recommendations allow for the omission of sentinel lymph node biopsy (SLNB) and post-lumpectomy radiotherapy in women ≥ 70 y/o with early-stage, hormone-receptor positive invasive breast cancer, but these therapies remain common. Previous work demonstrates an individual's maximizing-minimizing trait-an inherent preference for more or less medical care-may influence the preference for low-value care. MATERIALS AND METHODS: We recruited an equal number of women ≥ 70 yrs who were maximizers, minimizers, or neutral based on a validated measure between September 2020 and November 2020. Participants were presented a hypothetical breast cancer diagnosis before randomization to one of three follow-up messages: maximizer-tailored, minimizer-tailored, or neutral. Tailored messaging aimed to redirect maximizers and minimizers toward declining SLNB and radiotherapy. The main outcome measure was predicted probability of choosing SLNB or radiotherapy. RESULTS: The final analytical sample (n = 1600) was 515 maximizers (32%), 535 neutral (33%) and 550 (34%) minimizers. Higher maximizing tendency positively correlated with electing both SLNB and radiotherapy on logistic regression (P < 0.01). Any tailoring (maximizer- or minimizer-tailored) reduced preference for SLNB in maximizing and neutral women but had no effect in minimizing women. Tailoring had no impact on radiotherapy decision, except for an increased probability of minimizers electing radiotherapy when presented with maximizer-tailored messaging. CONCLUSIONS: Maximizing-minimizing tendencies are associated with treatment preferences among women facing a hypothetical breast cancer diagnosis. Targeted messaging may facilitate avoidance of low-value breast cancer care, particularly for SLNB.


Asunto(s)
Neoplasias de la Mama , Anciano , Axila/patología , Neoplasias de la Mama/diagnóstico , Neoplasias de la Mama/patología , Neoplasias de la Mama/terapia , Femenino , Humanos , Escisión del Ganglio Linfático , Mastectomía Segmentaria , Evaluación de Resultado en la Atención de Salud , Biopsia del Ganglio Linfático Centinela
11.
JAMA Surg ; 156(4): 353-362, 2021 04 01.
Artículo en Inglés | MEDLINE | ID: mdl-33533894

RESUMEN

Importance: Through the Choosing Wisely campaign, surgical specialties identified 4 low-value breast cancer operations. Preliminary data suggest varying rates of deimplementation and have identified patient-level and clinician-level determinants of continued overuse. However, little information exists about facility-level variation or determinants of differential deimplementation. Objective: To identify variation and determinants of persistent use of low-value breast cancer surgical care. Design, Setting, and Participants: Retrospective cohort study in which reliability-adjusted facility rates of each procedure were calculated using random-intercept hierarchical logistic regression before and after evidence demonstrated that each procedure was unnecessary. The National Cancer Database is a prospective cancer registry of patients encompassing approximately 70% of all new cancer diagnoses from more than 1500 facilities in the United States. Data were analyzed from November 2019 to August 2020. The registry included women 18 years and older diagnosed as having breast cancer between 2004 and 2016 and meeting inclusion criteria for each Choosing Wisely recommendation. Main Outcomes and Measures: Rate of each low-value breast cancer procedure based on facility type and breast cancer volume categories before and after the release of data supporting each procedure's omission. Results: The total cohort included 920 256 women with a median age of 63 years. Overall, 86% self-identified as White, 10% as Black, 3% as Asian, and 4.5% as Hispanic. Most women in this cohort were insured (51% private and 47% public), were living in a metropolitan or urban area (88% and 11%, respectively), and originated from the top half of income-earning households (65.5%). While there was significant deimplementation of axillary lymph node dissection and lumpectomy reoperation in response to guidelines supporting omission of these procedures, rates of contralateral prophylactic mastectomy and sentinel lymph node biopsy in older women increased during the study period. Academic research programs and high-volume facilities overall demonstrated the greatest reduction in use of these low-value procedures. There was significant interfacility variation for each low-value procedure. Facility-level axillary lymph node dissection rates ranged from 7% to 47%, lumpectomy reoperation rates ranged from 3% to 62%, contralateral prophylactic mastectomy rates ranged from 9% to 67%, and sentinel lymph node biopsy rates ranged from 25% to 97%. Pearson correlation coefficient for each combination of 2 of the 4 procedures was less than 0.11, suggesting that hospitals were not consistent in their deimplementation performance across all 4 procedures. Many were high outliers in one procedure but low outliers in another. Conclusions and Relevance: Interfacility variation demonstrates a performance gap and an opportunity for formal deimplementation efforts targeting each procedure. Several facility-level characteristics were associated with differential deimplementation and performance.


Asunto(s)
Neoplasias de la Mama/cirugía , Mastectomía/métodos , Pautas de la Práctica en Medicina/estadística & datos numéricos , Adulto , Anciano , Toma de Decisiones , Femenino , Humanos , Persona de Mediana Edad , Sistema de Registros , Reproducibilidad de los Resultados , Estudios Retrospectivos , Estados Unidos
12.
J Surg Res ; 262: 71-84, 2021 06.
Artículo en Inglés | MEDLINE | ID: mdl-33548676

RESUMEN

BACKGROUND: For average-risk women with unilateral breast cancer, contralateral prophylactic mastectomy (CPM) offers no survival benefit and contributes to increased costs and patient harm. Despite recommendations from professional societies against CPM, utilization of this service is increasing, partly due to patients' desire for breast symmetry when undergoing mastectomy. Most women with small tumors are candidates for breast-conserving surgery (BCS) and could avoid CPM. We describe CPM utilization in women with small, unilateral tumors, and identify determinants of possible overuse. METHODS: Using the National Cancer Database, we identified women with unilateral, T1 breast cancer. We evaluated utilization of BCS, unilateral mastectomy, and CPM and assessed patient, tumor, and facility factors associated with CPM. RESULTS: Of 765,487 women with small, unilateral breast cancer, 69% underwent BCS and 31% chose mastectomy. Of 176,673 women ≥70 y, 75% underwent BCS and 25% chose mastectomy. CPM rates in both cohorts have increased since 2006. Decreased adjuvant radiotherapy in older women was associated with increased BCS rates. Patient factors (younger age, white race, private insurance, and breast reconstruction), tumor factors (lobular histology, higher grade, and human epidermal growth factor receptor 2 positive/estrogen receptor negative status), and facility factors (type and geographic location) were associated with increased CPM rates compared with unilateral mastectomy in multivariable models. CONCLUSIONS: Most women with small unilateral breast cancer are candidates for BCS, yet one-third elects to undergo a mastectomy, of which a rising percentage opts for CPM. Tailoring deimplementation strategies to factors influencing treatment may help reduce CPM utilization and associated financial toxicity, pain, and disability.


Asunto(s)
Mastectomía Profiláctica/tendencias , Neoplasias de Mama Unilaterales/cirugía , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Mastectomía Segmentaria , Persona de Mediana Edad
13.
J Surg Res ; 261: 39-42, 2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-33412507

RESUMEN

The Center for Basic and Translational Science was formed to address the unique challenges faced by surgeon-scientists. Shortly after its inception, COVID-19 upended research workflows at our institution. We discuss how the collaborative Center for Basic and Translational Science framework was adapted to support laboratories during the pandemic by assisting with ramp-down, promoting mentorship and community building, and maintaining research productivity.


Asunto(s)
COVID-19/prevención & control , Colaboración Intersectorial , Investigadores/organización & administración , Cirujanos/organización & administración , Investigación Biomédica Traslacional/organización & administración , COVID-19/epidemiología , Eficiencia , Humanos , Mentores , Michigan/epidemiología , Pandemias
14.
J Surg Oncol ; 122(8): 1778-1784, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-32893366

RESUMEN

BACKGROUND AND OBJECTIVES: The publication of MSLT-II shifted recommendations for management of sentinel lymph node biopsy positive (SLNB+) melanoma to favor active surveillance. We examined trends in immediate completion lymph node dissection (CLND) following publication of MSLT-II. METHODS: Using a prospective melanoma database at a high-volume center, we identified a cohort of consecutive SLNB+ patients from July 2016 to April 2019. Patient and disease characteristics were analyzed with multivariate logistic regression to examine factors associated with CLND. RESULTS: Two hundred and thirty-five patients were included for analysis. CLND rates were 67%, 33%, and 26% for the year before, year after, and second-year following MSLT-II. Factors associated with undergoing CLND included primary located in the head and neck (59% vs 33%, P = .003 and odds ratio [OR], 5.22, P = .002) and higher sentinel node tumor burden (43% vs 10% for tumor burden ≥0.1 mm, P < .001 and OR, 8.64, P = .002). CONCLUSIONS: Rates of CLND in SLNB+ melanoma decreased dramatically, albeit not uniformly, following MSLT-II. Factors that increased the likelihood of immediate CLND were primary tumor located in the head and neck and high sentinel node tumor burden. These groups were underrepresented in MSLT-II, suggesting that clinicians are wary of implementing active surveillance recommendations for patients perceived as higher risk.


Asunto(s)
Bases de Datos Factuales , Escisión del Ganglio Linfático/métodos , Melanoma/cirugía , Ganglio Linfático Centinela/cirugía , Neoplasias Cutáneas/cirugía , Carga Tumoral , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Femenino , Estudios de Seguimiento , Humanos , Masculino , Melanoma/patología , Persona de Mediana Edad , Pronóstico , Estudios Prospectivos , Ganglio Linfático Centinela/patología , Biopsia del Ganglio Linfático Centinela , Neoplasias Cutáneas/patología , Adulto Joven
17.
Diabetol Metab Syndr ; 6(1): 4, 2014 Jan 15.
Artículo en Inglés | MEDLINE | ID: mdl-24428913

RESUMEN

BACKGROUND: Dysregulation of omentin-1, a beneficial adipokine, is thought to play a role in the development of type 2 diabetes and cardiovascular disease. The objective of this study was to evaluate the relationship between circulating omentin-1 concentrations and components of the metabolic syndrome in adults without type 2 diabetes or cardiovascular disease, and to determine if sex differences influenced the observed relationships. METHODS: Fasting blood samples were obtained from 93 adults, ages 30-60 years, without type 2 diabetes and/or cardiovascular disease. Participants were classified as having the metabolic syndrome according to American Heart Association/National Heart, Lung and Blood Institute criteria. Plasma omentin-1 concentrations were measured using a commercially-available enzyme-linked immunosorbent assay, and relationships between plasma omentin-1 and components of the metabolic syndrome were assessed in the entire study cohort, by metabolic syndrome status, and by sex. RESULTS: On average, participants were 48 ± 8 years of age, 50.5% were women, 54.8% were Caucasian, and 70% had the metabolic syndrome. Plasma omentin-1 concentrations did not differ significantly between individuals with versus without the metabolic syndrome (145.7 ± 70 versus 157.4 ± 79.3 ng/ml, p = 0.50). However, men with the metabolic syndrome had significantly lower omentin-1 levels than men without the metabolic syndrome (129.9 ± 66 versus 186.3 ± 84.3 ng/ml, p = 0.03). Plasma omentin-1 concentrations were significantly correlated with HDL cholesterol in the entire study cohort (r = 0.26; p = 0.01), which was primarily driven by a correlation in men (r = 0.451, p = 0.002) and participants with the metabolic syndrome (r = 0.36; p = 0.003). Plasma omentin-1 concentrations did not differ significantly between men and women; however men with the metabolic syndrome had 20% lower plasma omentin-1 levels than women with the metabolic syndrome (p = 0.06). CONCLUSION: These data demonstrate that circulating omentin-1 levels are associated with HDL cholesterol, primarily in men and in the presence of the metabolic syndrome. In addition, sex appears to influence the relationship between plasma omentin-1 concentrations and components of the metabolic syndrome. Additional studies are needed to explore sexual dimorphism in circulating omentin-1 levels, and the role of omentin-1 in the metabolic syndrome.

SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...