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1.
J Clin Neurosci ; 88: 88-94, 2021 Jun.
Article in English | MEDLINE | ID: mdl-33992210

ABSTRACT

OBJECTIVE: Meningioma incidence increases with age, yet limited data exist on how comorbidities impact complication rates in elderly patients undergoing meningioma resection. The objective of this study was to report surgical outcomes and identify risk factors for perioperative complications. METHODS: We performed a retrospective study of patients 75 years and older undergoing meningioma resection. Outcomes included survival and complications. Major complications were those requiring surgical intervention or causing permanent neurological deficit. Recursive partitioning, Kaplan-Meier survival, univariate and multi-variate (MVA) analyses were performed. RESULTS: From 1996 to 2014, 103 patients with a median age of 79 years (IQR 77-83 years) underwent cranial meningioma resection. Median follow-up was 5.8 years (IQR 1.7-8.7 years). Median actuarial survival was 10.5 years. Complications occurred in 32 patients (31.1%), and 13 patients (12.6%) had multiple complications. Major complications occurred in 16 patients (15.5%). Increasing age was not a significant predictor of any (p = 0.6408) or major complication (p = 0.8081). On univariate analysis, male sex, Charlson Comorbidity Index greater than 8, and cardiovascular comorbidities were significantly associated with major complications. On MVA only cardiovascular comorbidities (OR 3.94, 95% CI 1.05-14.76, p = 0.0238) were significantly associated with any complication. All patients with major complications had cardiovascular comorbidities, and on MVA male gender (OR 3.78, 95%CI 1.20-11.93, p = 0.0212) was associated with major complications. CONCLUSIONS: Cardiovascular comorbidities and male gender are significant risk factors for complications after meningioma resection in patients aged 75 years and older. While there is morbidity associated with meningioma resection in this cohort, there is also excellent long-term survival.


Subject(s)
Meningeal Neoplasms/surgery , Meningioma/surgery , Neurosurgical Procedures/adverse effects , Postoperative Complications/epidemiology , Treatment Outcome , Aged , Aged, 80 and over , Cohort Studies , Female , Humans , Incidence , Male , Postoperative Complications/etiology , Retrospective Studies , Risk Factors
2.
J Am Geriatr Soc ; 66(12): 2382-2388, 2018 12.
Article in English | MEDLINE | ID: mdl-30300941

ABSTRACT

OBJECTIVES: To investigate correctional healthcare providers' knowledge of and experience with advance care planning (ACP), their perspectives on barriers to ACP in correctional settings, and how to overcome those barriers. DESIGN: Qualitative. SETTING: Four prisons in 2 states and 1 large city jail in a third state. PARTICIPANTS: Correctional healthcare providers (e.g., physicians, nurses, social workers; N=24). RESULTS: Participants demonstrated low baseline ACP knowledge; 85% reported familiarity with ACP, but only 42% provided accurate definitions. Fundamental misconceptions included the belief that providers provided ACP without soliciting inmate input. Multiple ACP barriers were identified, many of which are unique to prison and jail facilities, including provider uncertainty about the legal validity of ACP documents in prison or jail, inmate mistrust of the correctional healthcare system, inmates' isolation from family and friends, and institutional policies that restrict use of ACP. Clinicians' suggestions for overcoming those barriers included ACP training for clinicians, creating psychosocial support opportunities for inmates, revising policies that limit ACP, and systematically integrating ACP into healthcare practice. CONCLUSION: Despite an increasing number of older and seriously ill individuals in prisons and jails, many correctional healthcare providers lack knowledge about ACP. In addition to ACP barriers found in the community, there are unique barriers to ACP in prisons and jails. Future research and policy innovation are needed to develop clinical training programs and identify ACP implementation strategies for use in correctional settings. J Am Geriatr Soc 66:2382-2388, 2018.


Subject(s)
Advance Care Planning , Health Personnel , Patient Advocacy , Prisoners/psychology , Prisons , Aged , Female , Health Knowledge, Attitudes, Practice , Humans , Male , Middle Aged , Qualitative Research , Vulnerable Populations
3.
J Biol Chem ; 290(25): 15707-15716, 2015 Jun 19.
Article in English | MEDLINE | ID: mdl-25944911

ABSTRACT

Wnt5a signaling regulates polarized cell behavior, but the downstream signaling events that promote cell polarity are not well understood. Our results show that Wnt5a promotes depalmitoylation of the melanoma cell adhesion molecule (MCAM) at cysteine 590. Mutation of Cys-590 to glycine is sufficient to polarize MCAM localization, similar to what is observed with Wnt5a stimulation. Inhibition of the depalmitoylating enzyme APT1 blocks Wnt5a-induced depalmitoylation, asymmetric MCAM localization, and cell invasion. Directly altering expression of the basal protein palmitoylation machinery is sufficient to promote cell invasion. Additionally, cancer mutations in palmitoyltransferases decrease MCAM palmitoylation and have impaired ability to suppress cell invasion. Our results provide evidence that Wnt5a induces protein depalmitoylation, which promotes polarized protein localization and cell invasion.


Subject(s)
Lipoylation , Neoplasms/metabolism , Protein Processing, Post-Translational , Proto-Oncogene Proteins/metabolism , Signal Transduction , Thiolester Hydrolases/metabolism , Wnt Proteins/metabolism , CD146 Antigen/biosynthesis , CD146 Antigen/genetics , Cell Line, Tumor , Humans , Mutation , Neoplasm Invasiveness , Neoplasms/genetics , Neoplasms/pathology , Proto-Oncogene Proteins/genetics , Thiolester Hydrolases/genetics , Wnt Proteins/genetics , Wnt-5a Protein
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