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1.
Proc Natl Acad Sci U S A ; 118(17)2021 04 27.
Artigo em Inglês | MEDLINE | ID: mdl-33875593

RESUMO

Highly public anti-Black violence in the United States may cause widely experienced distress for Black Americans. This study identifies 49 publicized incidents of racial violence and quantifies national interest based on Google searches; incidents include police killings of Black individuals, decisions not to indict or convict the officer involved, and hate crime murders. Weekly time series of population mental health are produced for 2012 through 2017 using two sources: 1) Google Trends as national search volume for psychological distress terms and 2) the Behavioral Risk Factor Surveillance System (BRFSS) as average poor mental health days in the past 30 d among Black respondents (mean weekly sample size of 696). Autoregressive moving average (ARMA) models accounted for autocorrelation, monthly unemployment, season and year effects, 52-wk lags, news-related searches for suicide (for Google Trends), and depression prevalence and percent female (for BRFSS). National search interest varied more than 100-fold between racial violence incidents. Black BRFSS respondents reported 0.26 more poor mental health days during weeks with two or more racial incidents relative to none, and 0.13 more days with each log10 increase in national interest. Estimates were robust to sensitivity tests, including controlling for monthly number of Black homicide victims and weekly search interest in riots. As expected, racial incidents did not predict average poor mental health days among White BRFSS respondents. Results with national psychological distress from Google Trends were mixed but generally unsupportive of hypotheses. Reducing anti-Black violence may benefit Black Americans' mental health nationally.


Assuntos
Negro ou Afro-Americano/psicologia , Exposição à Violência/tendências , Saúde Mental/tendências , Adulto , Centers for Disease Control and Prevention, U.S. , Violência Étnica/psicologia , Violência Étnica/tendências , Exposição à Violência/psicologia , Feminino , Humanos , Uso da Internet/tendências , Masculino , Pessoa de Meia-Idade , Vigilância da População , Prevalência , Racismo/psicologia , Racismo/tendências , Estados Unidos , Violência/psicologia , Violência/tendências
2.
Cell Biol Toxicol ; 39(1): 183-199, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-34523043

RESUMO

The autophagy-mediated lysosomal pathway plays an important role in conferring stress tolerance to tumor cells during cellular stress such as increased metabolic demands. Thus, targeted disruption of this function and inducing lysosomal cell death have been proved to be a useful cancer therapeutic approach. In this study, we reported that octyl syringate (OS), a novel phenolic derivate, was preferentially cytotoxic to various cancer cells but was significantly less cytotoxic to non-transformed cells. Treatment with OS resulted in non-apoptotic cell death in a caspase-independent manner. Notably, OS not only enhanced accumulation of autophagic substrates, including lapidated LC3 and sequestosome-1, but also inhibited their degradation via an autophagic flux. In addition, OS destabilized the lysosomal function, followed by the intracellular accumulation of the non-digestive autophagic substrates such as bovine serum albumin and stress granules. Furthermore, OS triggered the release of lysosomal enzymes into the cytoplasm that contributed to OS-induced non-apoptotic cell death. Finally, we demonstrated that OS was well tolerated and reduced tumor growth in mouse xenograft models. Taken together, our study identifies OS as a novel anticancer agent that induces lysosomal destabilization and subsequently inhibits autophagic flux and further supports development of OS as a lysosome-targeting compound in cancer therapy. • Octyl syringate, a phenolic derivate, is preferentially cytotoxic to various cancer cells. • Octyl syringate destabilizes the lysosomal function. • Octyl syringate blocks the autophagic flux. • Octyl syringate is a potential candidate compound for cancer therapy.


Assuntos
Antineoplásicos , Neoplasias , Camundongos , Animais , Humanos , Apoptose , Antineoplásicos/farmacologia , Morte Celular , Autofagia , Lisossomos/metabolismo , Neoplasias/metabolismo
3.
Surg Endosc ; 37(5): 3507-3521, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-36581785

RESUMO

BACKGROUND: Dementia, including Alzheimer's disease, interfere with daily function and are one of the major causes of disability, institutionalization, and death. Obesity is associated with an increased risk of dementia. However, the effect of significant and sustained weight loss following bariatric surgery on dementia is not known. The purpose of this study was to assess the long-term risk of dementia following bariatric surgery. METHODS: A surgical cohort was identified from the Utah Bariatric Surgery Registry and was linked to the Utah Population Database that includes electronic medical records, death records, and State Facility data. Adult subjects (≥ 18 years old) at time of surgery (1996-2016) were matched with non-surgical subjects. The final sample included 51,078 subjects (1:2 matching); surgery group n = 17,026; non-surgery subjects n = 34,052). Dementia were identified by ICD-9/10 diagnosis codes following surgery year or matched baseline year. Cox proportional hazard model was used to calculate the hazard ratio in the outcome between the groups. RESULTS: Average (SD) age of the subjects was 42 (12) years old at surgery or matched baseline year, 78% were female and mean follow-up time was 10.5 years. 1.4% of the surgery group and 0.5% of the control group had an incidence of dementia. Controlling the covariates in the Cox regression, the surgery group had a higher risk for dementia incidence than the matched non-surgery subjects (HR = 1.33, p = 0.02). CONCLUSIONS: The study showed an increased hazard for dementia in individuals who underwent bariatric surgery compared to matched non-surgical subjects. Additional long-term data is needed to verify this association.


Assuntos
Cirurgia Bariátrica , Demência , Obesidade Mórbida , Adulto , Humanos , Feminino , Adolescente , Masculino , Cirurgia Bariátrica/efeitos adversos , Obesidade/cirurgia , Redução de Peso , Incidência , Demência/epidemiologia , Demência/etiologia , Estudos Retrospectivos , Obesidade Mórbida/cirurgia
4.
Int J Obes (Lond) ; 46(1): 107-112, 2022 01.
Artigo em Inglês | MEDLINE | ID: mdl-34508153

RESUMO

BACKGROUND/OBJECTIVES: While an increased risk for substance use disorders (SUD) and also for several adverse pregnancy and birth outcomes in patients who have undergone bariatric surgery have been well documented when considered separately, an association between these important risk factors has not been investigated. This study explored the potential dependence of these two bariatric surgery-related risks. SUBJECTS/METHODS: This study was a retrospective cohort study with adult women (18-45) who underwent bariatric surgery between 1996 and 2016 and who gave birth after surgery between 1996 and 2018. The study population consisted of 1849 post-bariatric surgery women with 3010 reported post-surgical births. Subjects with post-surgical, prenatal SUD were identified based on diagnosis codes extracted within the 10 months prior to delivery. Using random-effects logistic regression with retrospective cohort data, preterm birth, low birth weight, macrosomia, Caesarian delivery, congenital anomalies, and neonatal intensive care unit admission were considered as outcomes. RESULTS: About 10% (n = 289) of women had an SUD diagnosis within 10 months prior to child delivery. Women with SUD during pregnancy had significantly more pregnancy and birth complications compared to women without SUD: preterm birth (OR = 2.08, p = 0.03, 95% CI: 1.07-4.03), low birth weight (OR = 3.41, p < 0.01, 95% CI: 1.99-5.84), Caesarian delivery (OR = 9.71, p < 0.01, 95% CI: 2.69-35.05), and neonatal intensive care unit admission (OR = 3.87, p < 0.01, 95% CI: 2.04-7.34). Women with SUD had lower risk for macrosomia than women without SUD (OR = 0.07, p = 0.02, 95% CI: 0.01-0.70). CONCLUSION: Results from this study demonstrated that post-bariatric surgery women who had SUD during pregnancy had significantly more pregnancy- and birth-related complications than post-surgery pregnant women without SUD, despite the reduction in macrosomia. Where possible, greater prenatal surveillance of post-surgery women with SUD should be considered.


Assuntos
Cuidado Pré-Natal/estatística & dados numéricos , Transtornos Relacionados ao Uso de Substâncias/complicações , Adulto , Cirurgia Bariátrica/métodos , Cirurgia Bariátrica/estatística & dados numéricos , Estudos de Coortes , Feminino , Humanos , Recém-Nascido , Gravidez , Complicações na Gravidez/epidemiologia , Resultado da Gravidez/epidemiologia , Cuidado Pré-Natal/métodos , Estudos Retrospectivos , Transtornos Relacionados ao Uso de Substâncias/fisiopatologia , Utah/epidemiologia
5.
Surg Endosc ; 36(7): 4960-4968, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-34734303

RESUMO

BACKGROUND: Significant and sustained weight loss resulting from bariatric surgery have demonstrated clinical reduction in severe obesity-related pain. Subsequentially, post-surgical pain reduction may reduce pain medication use. However, clear evidence regarding use of prescribed pain medications before and after bariatric surgery is absent. METHODS: Linking two state-wide databases, patients who underwent bariatric surgery between July 1, 2013 and December 31, 2015 were identified. Proportion tests were used to compare percent of patients with pain medication prescriptions 1 year before and 1 year after bariatric surgery. Logistic regression was used to identify baseline factors that were associated with pain medication use 1-year following surgery. RESULTS: A total of 3535 bariatric surgical patients aged 18-64 years at surgery were identified. Of these patients, 1339 patients met the following study criteria: covered by private insurance; known pre-surgical BMI; and continuous enrollment with health plan(s) from 12-month pre-surgery to 13-month post-surgery. While comparison of average number of overall pain medication prescriptions before and after surgery did not change, from 3.46 to 3.32 prescriptions (p value = 0.26), opioid prescription use increased from 1.62 vs. 2.05 (p value < 0.01). Patients prescribed more types of pain medications before surgery were more likely to have prescribed pain medications after surgery. Patients prescribed benzodiazepines at baseline had higher odds being prescribed post-surgery corticosteroids (OR = 1.89, p value < 0.01), muscle relaxants (OR = 2.18, p value < 0.01), and opioids (OR = 3.06, p value = < 0.01) compared to patients without pre-surgery--prescribed benzodiazepine. CONCLUSION: While comparison of average number of overall pain medication prescriptions before and after bariatric surgery did not decrease, opioid prescription increased post-surgery. Further studies are needed to examine whether post-surgery opioids are prescribed in lieu of or in tandem with other pain medication prescriptions.


Assuntos
Cirurgia Bariátrica , Transtornos Relacionados ao Uso de Opioides , Analgésicos Opioides/uso terapêutico , Prescrições de Medicamentos , Humanos , Manejo da Dor/métodos , Dor Pós-Operatória/tratamento farmacológico , Dor Pós-Operatória/etiologia
6.
Eur J Orthop Surg Traumatol ; 32(1): 113-119, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-33759030

RESUMO

BACKGROUND: Ankle fractures are common orthopedic injuries with complication rates fixation of up to 40%. Limited evidence exists in the literature regarding complications in the elderly population, and moreover, these studies frequently define elderly arbitrarily at 60-65 years old. The purpose of the present study was to utilize a large, validated database to evaluate whether there is an inflection point of age when postoperative complications after an ankle fracture significantly increase. METHODS: A retrospective review of all patients in the American College of Surgeons National Surgical Quality Improvement Program database who underwent fixation of an ankle fracture between 2012 and 2018 was performed. Patients were identified within the database using the Current Procedural Terminology codes. Appropriate statistical analysis was performed with p value less than 0.05 considered statistically significant. RESULTS: A total of 27,633 fractures were including and comprised of 221 posterior malleolar, 1567 medial malleolar, 8495 lateral malleolar, 10,175 bimalleolar, and 7175 trimalleolar. A total of 1545 complications were encountered (5.6%). There was a statistically significant association between increasing age and complications (OR = 1.03; p < 0.001). Further analysis shows the largest spike in complications within the age 78 + bracket. There were no overall interaction effects between age and fracture subtype (p = 0.223). CONCLUSION: ORIF of ankle fractures is a common orthopedic procedure performed on patients of all ages, with complications ranging in severity. In order to best counsel patients on their individual postoperative risks, large datasets are often necessary to prognosticate. This study found that postoperative complications increase with advanced age. The incidence of complications did not spike for patients around the age of 65, but rather followed an incremental linear pattern with the largest increase in odds ratio occurring at age 78 and above. Complication rate was not associated with specific fracture type based off of ICD codes.


Assuntos
Fraturas do Tornozelo , Idoso , Fraturas do Tornozelo/cirurgia , Fixação Interna de Fraturas/efeitos adversos , Humanos , Pessoa de Meia-Idade , Redução Aberta/efeitos adversos , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Estudos Retrospectivos , Resultado do Tratamento
7.
Am J Epidemiol ; 189(4): 330-342, 2020 04 02.
Artigo em Inglês | MEDLINE | ID: mdl-31781743

RESUMO

Head and neck cancer (HNC) risk prediction models based on risk factor profiles have not yet been developed. We took advantage of the large database of the International Head and Neck Cancer Epidemiology (INHANCE) Consortium, including 14 US studies from 1981-2010, to develop HNC risk prediction models. Seventy percent of the data were used to develop the risk prediction models; the remaining 30% were used to validate the models. We used competing-risk models to calculate absolute risks. The predictors included age, sex, education, race/ethnicity, alcohol drinking intensity, cigarette smoking duration and intensity, and/or family history of HNC. The 20-year absolute risk of HNC was 7.61% for a 60-year-old woman who smoked more than 20 cigarettes per day for over 20 years, consumed 3 or more alcoholic drinks per day, was a high school graduate, had a family history of HNC, and was non-Hispanic white. The 20-year risk for men with a similar profile was 6.85%. The absolute risks of oropharyngeal and hypopharyngeal cancers were generally lower than those of oral cavity and laryngeal cancers. Statistics for the area under the receiver operating characteristic curve (AUC) were 0.70 or higher, except for oropharyngeal cancer in men. This HNC risk prediction model may be useful in promoting healthier behaviors such as smoking cessation or in aiding persons with a family history of HNC to evaluate their risks.


Assuntos
Neoplasias de Cabeça e Pescoço/epidemiologia , Modelos Teóricos , Idoso , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Medição de Risco , Estados Unidos/epidemiologia
8.
N Engl J Med ; 377(12): 1143-1155, 2017 09 21.
Artigo em Inglês | MEDLINE | ID: mdl-28930514

RESUMO

BACKGROUND: Few long-term or controlled studies of bariatric surgery have been conducted to date. We report the 12-year follow-up results of an observational, prospective study of Roux-en-Y gastric bypass that was conducted in the United States. METHODS: A total of 1156 patients with severe obesity comprised three groups: 418 patients who sought and underwent Roux-en-Y gastric bypass (surgery group), 417 patients who sought but did not undergo surgery (primarily for insurance reasons) (nonsurgery group 1), and 321 patients who did not seek surgery (nonsurgery group 2). We performed clinical examinations at baseline and at 2 years, 6 years, and 12 years to ascertain the presence of type 2 diabetes, hypertension, and dyslipidemia. RESULTS: The follow-up rate exceeded 90% at 12 years. The adjusted mean change from baseline in body weight in the surgery group was -45.0 kg (95% confidence interval [CI], -47.2 to -42.9; mean percent change, -35.0) at 2 years, -36.3 kg (95% CI, -39.0 to -33.5; mean percent change, -28.0) at 6 years, and -35.0 kg (95% CI, -38.4 to -31.7; mean percent change, -26.9) at 12 years; the mean change at 12 years in nonsurgery group 1 was -2.9 kg (95% CI, -6.9 to 1.0; mean percent change, -2.0), and the mean change at 12 years in nonsurgery group 2 was 0 kg (95% CI, -3.5 to 3.5; mean percent change, -0.9). Among the patients in the surgery group who had type 2 diabetes at baseline, type 2 diabetes remitted in 66 of 88 patients (75%) at 2 years, in 54 of 87 patients (62%) at 6 years, and in 43 of 84 patients (51%) at 12 years. The odds ratio for the incidence of type 2 diabetes at 12 years was 0.08 (95% CI, 0.03 to 0.24) for the surgery group versus nonsurgery group 1 and 0.09 (95% CI, 0.03 to 0.29) for the surgery group versus nonsurgery group 2 (P<0.001 for both comparisons). The surgery group had higher remission rates and lower incidence rates of hypertension and dyslipidemia than did nonsurgery group 1 (P<0.05 for all comparisons). CONCLUSIONS: This study showed long-term durability of weight loss and effective remission and prevention of type 2 diabetes, hypertension, and dyslipidemia after Roux-en-Y gastric bypass. (Funded by the National Institute of Diabetes and Digestive and Kidney Diseases and others.).


Assuntos
Derivação Gástrica , Obesidade Mórbida/cirurgia , Redução de Peso , Adulto , Idoso , Peso Corporal , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/epidemiologia , Diabetes Mellitus Tipo 2/prevenção & controle , Dislipidemias/complicações , Dislipidemias/prevenção & controle , Feminino , Seguimentos , Humanos , Hipertensão/complicações , Hipertensão/prevenção & controle , Incidência , Masculino , Pessoa de Meia-Idade , Obesidade Mórbida/complicações , Obesidade Mórbida/mortalidade , Indução de Remissão , Fatores de Risco , Suicídio , Adulto Jovem
9.
Med Care ; 58(5): 468-473, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-31934953

RESUMO

BACKGROUND: Health care costs and utilization for those with an intellectual or developmental disability (IDD) have been shown to be higher than the general population. OBJECTIVE: To investigate the services that contribute to higher costs and utilization among noninstitutionalized children with an IDD. DESIGN: Matched case-control secondary analysis of the 2000-2017 Medical Expenditure Panel Survey. Pediatric (age 0-21) patients with an IDD were matched to non-IDD subjects. Health care utilization and costs were evaluated with zero-inflated negative binomial regressions and generalized linear models, respectively. MEASURES: Outcome measures included high-acuity health care utilization [ie, emergency department (ED) visits and hospital admissions], and cost outcomes for total spending, ED use, hospitalization, medications, office visits, home health, and physical therapy. RESULTS: There was no statistical difference in utilization of EDs among the 2 groups though subjects with an IDD showed more hospitalizations than their matched cohort (incidence rate ratios=1.63, P=0.00). Total health care spending was higher among patients with an IDD (coefficient=$5831, P=0.00). Pediatric spending was higher in all measures except for ED. The biggest discrepancies in spending were seen in home health (coefficient=$2558, P=0.00) and outpatient visits (coefficient=$1180, P=0.00). CONCLUSIONS: Pediatric patients with an IDD had higher health care spending and utilization than non-IDD subjects in all categories except for ED use.


Assuntos
Deficiências do Desenvolvimento/economia , Gastos em Saúde/estatística & dados numéricos , Deficiência Intelectual/economia , Assistência Ambulatorial/economia , Assistência Ambulatorial/estatística & dados numéricos , Estudos de Casos e Controles , Criança , Deficiências do Desenvolvimento/epidemiologia , Serviço Hospitalar de Emergência/economia , Serviço Hospitalar de Emergência/estatística & dados numéricos , Feminino , Inquéritos Epidemiológicos , Serviços de Assistência Domiciliar/economia , Serviços de Assistência Domiciliar/estatística & dados numéricos , Hospitalização/economia , Hospitalização/estatística & dados numéricos , Humanos , Deficiência Intelectual/epidemiologia , Masculino , Estados Unidos/epidemiologia
10.
J Surg Res ; 247: 469-478, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31668433

RESUMO

BACKGROUND: In 2011, the Accreditation Council for Graduate Medical Education (ACGME) instituted further duty hour restrictions in response to concerns over long work hours and sleep deprivation in trainees and their effects on patient outcomes. The effect of duty hour restrictions on complications after breast reconstruction procedures has not been clarified. MATERIALS AND METHODS: A retrospective cross-sectional analysis was designed. The National Inpatient Sample database was queried in the 2 y before and 2 y after the 2011 duty hour changes. Patients undergoing breast reconstruction, the most common elective admission diagnosis for plastic surgery patients, were selected for analysis. Patient groups were separated by teaching hospitals (THs) and nonteaching hospitals and by pre- and post-ACGME change periods. Surgical complication rates, length of stay, and procedures were analyzed using complex survey-weighted univariate and multivariate logistic regression analysis, with additional sensitivity analysis applied. RESULTS: The number of procedures did not vary significantly in the period after duty hour restrictions in THs (n = 46,188, pre-ACGME versus n = 48,980, post-ACGME). Overall complication rates in teaching (9.54%, pre-ACGME versus 9.04%, post-ACGME; P = 0.561) and nonteaching hospitals (8.54%, pre-ACGME versus 7.70%, post-ACGME; P = 0.319) did not significantly change after the implementation of duty hour changes. On multivariate analysis, surgery performed in resident THs after duty hour changes was not associated with a significant change in overall (odds ratio [OR], 1.03; 95% confidence interval [95% CI], 0.77-1.37; P = 0.857) breast-specific complications (OR, 1.06; 95% CI, 0.77-1.46; P = 0.731) or general complications (OR, 1.11; 95% CI, 0.80-1.54; P = 0.541). CONCLUSIONS: Duty hour restrictions enacted in 2011 were not associated with postoperative complications after breast reconstruction.


Assuntos
Acreditação/normas , Procedimentos Cirúrgicos Eletivos/efeitos adversos , Internato e Residência/normas , Mamoplastia/efeitos adversos , Complicações Pós-Operatórias/epidemiologia , Adulto , Esgotamento Profissional/prevenção & controle , Esgotamento Profissional/psicologia , Estudos Transversais , Procedimentos Cirúrgicos Eletivos/educação , Procedimentos Cirúrgicos Eletivos/estatística & dados numéricos , Feminino , Hospitais de Ensino/normas , Hospitais de Ensino/estatística & dados numéricos , Humanos , Tempo de Internação , Mamoplastia/educação , Mamoplastia/estatística & dados numéricos , Erros Médicos/prevenção & controle , Erros Médicos/estatística & dados numéricos , Pessoa de Meia-Idade , Admissão e Escalonamento de Pessoal , Complicações Pós-Operatórias/etiologia , Estudos Retrospectivos , Cirurgia Plástica/educação , Tolerância ao Trabalho Programado/psicologia , Carga de Trabalho/normas , Carga de Trabalho/estatística & dados numéricos
11.
J Reconstr Microsurg ; 36(6): 450-457, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32172527

RESUMO

BACKGROUND: Traditionally, surgical quality outcomes are assessed using a 30-day postoperative window. For breast cancer patients undergoing free tissue transfer for breast reconstruction, we sought to describe the distribution of and specific risk factors for early and late readmissions within a 0- to 90-day postoperative period. PATIENTS AND METHODS: The Nationwide Readmissions Database was used to conduct a retrospective cohort study. Breast cancer patients undergoing free tissue transfer for breast reconstruction were identified using International Classification of Diseases -9 diagnosis and procedure codes. Ninety-day readmissions related to infection or wound complications were identified. Univariable and multivariable logistic regression models were used to identify patient risk factors for readmissions that occurred early (0-30 days) and late (31-90 days) after their index procedure. RESULTS: In the weighted sample, we identified approximately 7,305 free flap breast reconstructions and a surgical wound-related readmission rate of 4.3% (n = 312): 65.4% of the readmissions occurred early while 34.6% occurred late after surgery. The mean days to readmission was 26, and 75% of all readmissions occurred within the first 36 days after surgery. Variables independently associated with readmissions during the 0- to 90-day postoperative period included: history of chronic obstructive pulmonary disease (p = 0.036), hypertension (p = 0.03), obesity (p ≤ 0.001), and history of smoking (p = 0.004). The variables independently associated with the early readmission period were the same as those identified for the 0- to 90-day postoperative period. The variables independently associated with late readmissions were different: history of depression (p = 0.001) and history of smoking (p = 0.001). CONCLUSION: The conventional 30-day hospital readmission rate classically used as a quality metric is overlooking a significant portion of admissions after free flap-based breast reconstruction. Different variables were found to be associated with readmission in the early versus late cohorts. Interventions targeting these variables could decrease readmissions and their associated costs.


Assuntos
Mamoplastia , Readmissão do Paciente , Bases de Dados Factuais , Humanos , Mamoplastia/efeitos adversos , Complicações Pós-Operatórias/epidemiologia , Estudos Retrospectivos , Fatores de Risco
12.
J Vasc Surg ; 70(5): 1620-1628, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31147114

RESUMO

OBJECTIVE: Arteriovenous fistulas (AVFs) used for hemodialysis commonly undergo multiple percutaneous and open interventions to maintain functional patency, but it is unclear whether this strategy is cost-effective. The aim of this study was to evaluate the clinical effectiveness and cost-effectiveness of performing repeated interventions vs starting a new AVF. METHODS: We reviewed all patients with mature radiocephalic, brachiocephalic, and brachiobasilic AVFs at a single academic institution between 2007 and 2015 and assessed the clinical effectiveness of each open and percutaneous intervention to maintain functional patency after the fistula was created. These data were used to parameterize a Markov simulation model to determine the cost-effectiveness for performing an open or percutaneous intervention vs creating an AVF at a new anatomic location. This model compared strategies of creating a new AVF after the first to fourth reintervention within a 1-year time window, with the reference being creation of a new AVF on the fourth reintervention. Costs were measured from Medicare's perspective, and effectiveness was measured as quality-adjusted life-years (QALYs) and time in functional access. Incremental cost-effectiveness ratios (ICERs) were calculated by taking the ratio of the difference in cost and the difference in effectiveness between two strategies. RESULTS: A total of 720 AVFs that were created during the 8-year period reached maturity, and 407 (56%) underwent at least one intervention to maintain functional patency, with the median (interquartile range) time to first reintervention of 12.6 (10-17) months. For the strategies of creating a new AVF after the first versus the fourth reintervention, payer costs ranged from $3519 to $3922 for open procedures and $2134 to $3922 for percutaneous procedures. The ICERs for open interventions on failing AVFs were $357,143/QALY after the first reintervention and $95,876/QALY after the second reintervention. The ICERs for percutaneous interventions on failing AVFs ranged from $1,522,078/QALY after the first reintervention to $443,243/QALY after the third reintervention. CONCLUSIONS: Whereas the clinical effectiveness of performing percutaneous interventions on failing AVFs diminishes after each reintervention, they are nevertheless less costly than creating a new AVF. In comparison, our data show that creating a new AVF is cost-effective after the second open reintervention procedure.


Assuntos
Derivação Arteriovenosa Cirúrgica/efeitos adversos , Análise Custo-Benefício , Oclusão de Enxerto Vascular/cirurgia , Modelos Econômicos , Reoperação/economia , Adulto , Idoso , Derivação Arteriovenosa Cirúrgica/economia , Simulação por Computador , Feminino , Oclusão de Enxerto Vascular/diagnóstico , Oclusão de Enxerto Vascular/economia , Humanos , Falência Renal Crônica/economia , Falência Renal Crônica/terapia , Masculino , Cadeias de Markov , Medicare/economia , Pessoa de Meia-Idade , Anos de Vida Ajustados por Qualidade de Vida , Diálise Renal/economia , Diálise Renal/métodos , Estudos Retrospectivos , Resultado do Tratamento , Ultrassonografia Doppler Dupla , Estados Unidos , Grau de Desobstrução Vascular
13.
Exp Mol Pathol ; 109: 36-41, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-31128090

RESUMO

BACKGROUND: Calcific tendinopathy (CT) is characterized by deposits of calcium, most commonly found in the shoulder tendons. The exact cause and pathogenesis of CT are not fully understood. This study analyzed the expression pattern of RNA-binding protein fox-1 homolog 2 (RBFOX2), a crucial splicing regulator in tissue differentiation. METHODS: Normal and calcific tendons were compared for RBFOX2 mRNA level using quantitative reverse-transcription polymerase chain reaction. Intracellular localization of RBFOX2 protein was investigated using immunofluorescence microscopy. Normal and calcific tendon cDNAs were used to clone RBFOX2. Sequencing analysis identified coding sequences of the RBFOX2 isoform. RESULTS: The intracellular localization of RBFOX2 protein differed with disease status, with RBFOX2 localized in the cytoplasm in calcific tendons and the nucleus in normal tendons. Analysis of the RBFOX2 protein-coding sequence showed that exon 10, responsible for nuclear localization, was absent in calcific tendons. Splicing of RBFOX2 target genes CHD2 and MBNL1 was significantly affected by cytoplasmic localization of RBFOX2 in calcific tendons. DISCUSSION: Given the function of RBFOX2 as a splicing regulator in the nucleus, cytoplasmic localization of RBFOX2 protein in calcific tendons may have affected overall splicing events and altered gene expression. These results provide insights for comprehension of CT pathogenesis.


Assuntos
Processamento Alternativo , Citoplasma/genética , Fatores de Processamento de RNA/genética , Proteínas Repressoras/genética , Tendinopatia/genética , Idoso , Sequência de Aminoácidos , Núcleo Celular/genética , Núcleo Celular/metabolismo , Citoplasma/metabolismo , Éxons/genética , Feminino , Células HeLa , Humanos , Masculino , Pessoa de Meia-Idade , Isoformas de Proteínas/genética , Isoformas de Proteínas/metabolismo , Fatores de Processamento de RNA/metabolismo , Proteínas Repressoras/metabolismo , Homologia de Sequência de Aminoácidos , Tendinopatia/diagnóstico , Tendinopatia/metabolismo , Tendões/metabolismo , Tendões/patologia
14.
J Pharm Technol ; 35(6): 258-269, 2019 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34752508

RESUMO

Background: Rates of zoster vaccination in US adults aged 60+ were approximately 30.6% in 2015. Out-of-pocket cost-sharing has been identified as a major barrier to vaccination for patients. To date, herpes zoster vaccine cost-sharing requirements for adults aged 60 to 64 has not been described. Objective: Compare the cost-sharing requirements for zoster vaccination in adults aged 60 to 64 and adults aged 65+. Methods: A retrospective cohort design examined pharmacy claims for zoster vaccination from the Utah All Payer Claims Database for adults aged 60+. Descriptive statistics and a 2-part cost model compared cost-sharing requirements for adults aged 60 to 64 and adults 65+. Results: Of the 30 293 zoster vaccine claims, 13 398 (45.8%) had no cost-sharing, 1716 (5.9%) had low cost-sharing (defined as $1 to less than $30), and 14 133 (48.3%) had high cost-sharing (defined as $30 or more). In the cost models, adults aged 65+ had higher odds of any cost-sharing (odds ratio = 39.86) and 29% higher cost-sharing as compared with adults aged 60 to 64. Conclusions: Adults aged 60 to 64 encounter lower cost-sharing requirements than adults aged 65+. Providers should be cognizant of this dynamic and encourage zoster vaccination prior to the age of 65.

15.
Biochem Biophys Res Commun ; 496(1): 159-166, 2018 01 29.
Artigo em Inglês | MEDLINE | ID: mdl-29307823

RESUMO

Claudin 1, a major tight junction protein, is highly expressed in various types of tumors such as thyroid, breast, and colorectal cancers. Moreover, claudin 1 is frequently found in the cytoplasm in various types of tumor cells. However, the cytoplasmic function of claudin 1 in tumors still remains largely unknown. Here, we investigated the novel function of cytoplasmic claudin 1 in autophagy. The mRNA expression level of claudin 1 was higher in several types of tumors than in normal tissues. Furthermore, colon tumor tissues showed increased autophagy compared with the adjacent normal tissues. Both endogenous and exogenous claudin 1 showed a cytoplasmic punctate staining pattern and were co-stained with the lysosome-associated membrane protein 1 (LAMP1). Importantly, autophagy-induced conditions, including starvation, increased the protein stability of claudin 1. Moreover, the increased level of claudin 1 stimulated autophagy by decreasing the level of the autophagy substrate, sequestosome1/p62 (SQSTM1), under autophagy-inducing conditions; activation of AMP-activated protein kinase (AMPK) and inhibition of mammalian target of rapamycin (mTOR). Taken together, we demonstrate that the novel function of cytoplasmic claudin 1 is related to autophagy. This study is the first to show a cytoplasmic function of claudin 1 as an autophagy regulator and provides the evidence that claudin 1-mediated autophagy regulation is an integral part of the mechanism by which claudin 1 regulates cancer progression.


Assuntos
Autofagia/fisiologia , Hipóxia Celular , Claudina-1/metabolismo , Glucose/metabolismo , Proteínas de Ligação a RNA/metabolismo , Proteína Sequestossoma-1/metabolismo , Citoplasma/metabolismo , Células HeLa , Humanos , Células MCF-7 , Regulação para Cima
16.
J Surg Res ; 229: 186-191, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29936988

RESUMO

BACKGROUND: Laparoscopic cholecystectomy (LC) is the standard of care for biliary disease in developed countries. LC in resource-limited countries is increasing. This prospective, observational study evaluates costs, outcomes, and quality of life (QoL) associated with laparoscopic versus open cholecystectomy (OC) in Mongolia. METHODS: Patient demographics, outcomes, and total payer and patient costs were elicited from a convenience sample of patients undergoing cholecystectomy at four urban and three rural hospitals (February 2016-January 2017). QoL was assessed preoperatively and postoperatively using the five-level EQ-5D instrument. Perioperative complications, surgical fees, and QoL scores were evaluated for LC versus OC. Multivariate regression models were generated to adjust for differences between these groups. RESULTS: Two hundred and fifteen cholecystectomies were included (LC 122, OC 93). LC patients were more likely to have attended college and have insurance. Preoperative symptoms were comparable between groups. Total complication rate was 21.8% (no difference between groups); LC patients had less superficial infections (0% versus 10.8%). Median hospital length of stay (HLOS) and days to return to work were shorter after LC. QoL improved after surgery for both groups. Mean total payer and patient costs were higher for LC, but not significant (P-value 0.126). After adjustment, LC had significantly less complications, shorter HLOS, fewer days to return to work, greater improvement in QoL scores, and no increase in cost. CONCLUSIONS: LC is safe and beneficial to patients with biliary disease in Mongolia, and cost effective from the patient's and payer's perspective. Although equipment costs for LC may be more expensive than OC, there are likely significant cost savings related to reduced HLOS, shorter time off work, fewer complications, and improved QoL.


Assuntos
Doenças Biliares/cirurgia , Colecistectomia Laparoscópica/economia , Análise Custo-Benefício , Período Perioperatório/economia , Complicações Pós-Operatórias/epidemiologia , Adulto , Doenças Biliares/economia , Colecistectomia Laparoscópica/efeitos adversos , Colecistectomia Laparoscópica/métodos , Redução de Custos/economia , Redução de Custos/estatística & dados numéricos , Feminino , Custos de Cuidados de Saúde/estatística & dados numéricos , Gastos em Saúde/estatística & dados numéricos , Humanos , Tempo de Internação/economia , Tempo de Internação/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Mongólia/epidemiologia , Duração da Cirurgia , Complicações Pós-Operatórias/economia , Complicações Pós-Operatórias/etiologia , Estudos Prospectivos , Qualidade de Vida , Fatores de Tempo
17.
Prev Chronic Dis ; 14: E58, 2017 07 20.
Artigo em Inglês | MEDLINE | ID: mdl-28727546

RESUMO

INTRODUCTION: Evaluation of interventions can help to close the gap between research and practice but seldom takes place during implementation. Using the RE-AIM framework, we conducted a formative evaluation of the first year of the Intermountain Healthcare Diabetes Prevention Program (DPP). METHODS: Adult patients who met the criteria for prediabetes (HbA1c of 5.70%-6.49% or fasting plasma glucose of 100-125 mg/dL) were attributed to a primary care provider from August 1, 2013, through July 31, 2014. Physicians invited eligible patients to participate in the program during an office visit. We evaluated 1) reach, with data on patient eligibility, participation, and representativeness; 2) effectiveness, with data on attaining a 5% weight loss; 3) adoption, with data on providers and clinics that referred patients to the program; and 4) implementation, with data on patient encounters. We did not measure maintenance. RESULTS: Of the 6,862 prediabetes patients who had an in-person office visit with their provider, 8.4% of eligible patients enrolled. Likelihood of participation was higher among patients who were female, aged 70 years or older, or overweight; had depression and higher weight at study enrollment; or were prescribed metformin. DPP participants were more likely than nonparticipants to achieve a 5% weight loss (odds ratio, 1.70; 95% confidence interval, 1.29-2.25; P < .001). Providers from 7 of 8 regions referred patients to the DPP; 174 providers at 53 clinics enrolled patients. The mean number of DPP counseling encounters per patient was 2.3 (range, 1-16). CONCLUSION: The RE-AIM framework was useful for estimating the formative impact (ie, reach, effectiveness, adoption, and implementation fidelity) of a DPP-based lifestyle intervention deployed in a learning health care system.


Assuntos
Atenção à Saúde/organização & administração , Diabetes Mellitus Tipo 2/prevenção & controle , Estado Pré-Diabético , Comportamentos Relacionados com a Saúde , Promoção da Saúde , Humanos , Estilo de Vida , Utah
18.
Korean J Parasitol ; 55(2): 137-142, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28506035

RESUMO

Cryptosporidium and Cyclospora are well-known coccidian protozoa that can cause waterborne and foodborne diarrheal illnesses. There have been a few reports regarding contamination in different vegetables with Cryptosporidium, but no data are available regarding the sources of Cyclospora infections in Korea. In the present study, we collected 6 kinds of vegetables (perilla leaves, winter-grown cabbages, chives, sprouts, blueberries, and cherry tomatoes) from July 2014 to June 2015, and investigated contamination by these 2 protozoa using multiplex quantitative real-time PCR. Among 404 vegetables, Cryptosporidium and Cyclospora were detected in 31 (7.7%) and 5 (1.2%) samples, respectively. In addition, Cryptosporidium was isolated from all 6 kinds of vegetables, whereas Cyclospora was detected in 4 kinds of vegetables (except perilla leaves and chives). Cryptosporidium (17.8%) and Cyclospora (2.9%) had the highest detection rates in chives and winter-grown cabbages, respectively. Cryptosporidium was detected all year long; however, Cyclospora was detected only from October to January. In 2 samples (sprout and blueberry), both Cryptosporidium and Cyclospora were detected. Further investigations using TaqI restriction enzyme fragmentation and nested PCR confirmed Cryptosporidium parvum and Cyclospora cayetanensis, respectively. In conclusion, we detected C. cayetanensis in vegetables for the first time in Korea. This suggests that screening should be employed to prevent these protozoal infections in Korea.


Assuntos
Cryptosporidium parvum/isolamento & purificação , Cyclospora/isolamento & purificação , Verduras/parasitologia , Criptosporidiose/prevenção & controle , Ciclosporíase/prevenção & controle , Contaminação de Alimentos/prevenção & controle , Humanos , Reação em Cadeia da Polimerase em Tempo Real/métodos , República da Coreia , Estações do Ano
19.
Gynecol Oncol ; 136(3): 521-8, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25562668

RESUMO

OBJECTIVE: To evaluate toxicity and cost-effectiveness of intensity modulated radiation therapy (IMRT) versus 3-dimensional conformal radiation therapy (3DCRT) in the postoperative treatment of uterine and cervical cancer. METHODS: Between 2000 and 2012, eighty patients at our institution received post-hysterectomy 3DCRT (46) or IMRT (34) for uterine or cervical cancer. Baseline characteristics, outcome, and ≥CTCAE grade 2 toxicities were compared between the two groups. Predictors of toxicity-free survival were identified. A decision analysis model was designed to capture individual health states at 1, 2, and 3 years after treatment. Micro-costing technique and estimated quality-adjusted life years (QALYs) were used to calculate incremental cost-effectiveness ratio (ICER). RESULTS: Utilization of IMRT increased from 25% (2005-2007) to 75% (2008-2012). Recurrence-free and overall survival rates were not different between the two groups. Toxicity rates were reduced with IMRT versus 3DCRT (HR 0.42, p=0.04). Women who received IMRT had numerically lower rates of late gastrointestinal and genitourinary toxicity and significantly lower rates of late overall toxicity at 3 years (16% vs. 45%, p=0.04). On univariate analysis, IMRT was associated with decreased late toxicity (HR 0.43, p=0.04). Treatment costs were higher and toxicity costs were lower with IMRT. IMRT had an ICER of $235,233 (year 1), $114,270 (year 2), and $75,555 (year 3) per QALY gained. CONCLUSION: IMRT is associated with reduced late overall toxicity compared to 3DCRT without compromising clinical outcome. IMRT is not cost-effective during the early chronic toxicity phase, but it becomes more cost-effective over time.


Assuntos
Análise Custo-Benefício , Histerectomia , Radioterapia Conformacional/métodos , Neoplasias Uterinas/radioterapia , Adulto , Idoso , Idoso de 80 Anos ou mais , Bases de Dados Factuais , Técnicas de Apoio para a Decisão , Feminino , Custos Hospitalares/estatística & dados numéricos , Humanos , Pessoa de Meia-Idade , Período Pós-Operatório , Anos de Vida Ajustados por Qualidade de Vida , Radioterapia Adjuvante , Radioterapia Conformacional/efeitos adversos , Radioterapia Conformacional/economia , Radioterapia de Intensidade Modulada/efeitos adversos , Radioterapia de Intensidade Modulada/economia , Radioterapia de Intensidade Modulada/métodos , Sistema de Registros , Estudos Retrospectivos , Análise de Sobrevida , Resultado do Tratamento , Utah , Neoplasias do Colo do Útero/economia , Neoplasias do Colo do Útero/mortalidade , Neoplasias do Colo do Útero/radioterapia , Neoplasias do Colo do Útero/cirurgia , Neoplasias Uterinas/economia , Neoplasias Uterinas/mortalidade , Neoplasias Uterinas/cirurgia
20.
Birth Defects Res A Clin Mol Teratol ; 103(11): 962-71, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-26215888

RESUMO

BACKGROUND: Newborn screening for critical congenital heart disease (CCHD) using pulse oximetry is being implemented in the United States and internationally; however, few data are available on the associated in-hospital costs and use of resources. METHODS: Time and motion study in well-baby nurseries at two large urban hospitals in Utah using different approaches to pulse oximetry screening. Two observers recorded the time for each screening step together with provider and equipment characteristics. Structured questionnaire provided additional information on labor and equipment costs. RESULTS: Fifty-three CCHD screens were observed. At site A (n = 22), screening was mostly done by medical assistants (95%) using disposable probes (100%); at site B (n = 31), screening was mostly performed by certified nursing assistants (90%) using reusable probes (90%). Considering only first screens (n = 53), the median screen time was 8.6 min (range: 3.2-23.2), with no significant difference between sites. The overall cost ($ in 2014) of screening per baby was $24.52 at site A and $2.60 at site B. Nearly all the variation in cost (90%) was due to the cost of disposable probes; labor costs were similar between sites. CONCLUSION: CCHD screening by means of pulse oximetry is reasonably fast for most babies, leading to relative small labor costs with little variation by provider type. The main driver of costs is equipment: in a high throughput setting, reusable probes are currently associated with considerable cost saving compared with disposable probes. As programs expand to universal screening, improved and cheaper technologies could lead to considerable economies of scale.


Assuntos
Recursos em Saúde/economia , Cardiopatias Congênitas/diagnóstico , Cardiopatias Congênitas/economia , Custos Hospitalares/estatística & dados numéricos , Triagem Neonatal/economia , Oximetria/economia , Análise Custo-Benefício , Feminino , Humanos , Recém-Nascido , Masculino , Inquéritos e Questionários , Estudos de Tempo e Movimento , Estados Unidos
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