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BACKGROUND: Leak following surgical repair of traumatic duodenal injuries results in prolonged hospitalization and oftentimes nil per os(NPO) treatment. Parenteral nutrition(PN) has known morbidity; however, duodenal leak(DL) patients often have complex injuries and hospital courses resulting in barriers to enteral nutrition(EN). We hypothesized EN alone would be associated with 1)shorter duration until leak closure and 2)less infectious complications and shorter hospital length of stay(HLOS) compared to PN. METHODS: This was a post-hoc analysis of a retrospective, multicenter study from 35 Level-1 trauma centers, including patients >14 years-old who underwent surgery for duodenal injuries(1/2010-12/2020) and endured post-operative DL. The study compared nutrition strategies: EN vs PN vs EN + PN using Chi-Square and Kruskal-Wallis tests; if significance was found pairwise comparison or Dunn's test were performed. RESULTS: There were 113 patients with DL: 43 EN, 22 PN, and 48 EN + PN. Patients were young(median age 28 years-old) males(83.2%) with penetrating injuries(81.4%). There was no difference in injury severity or critical illness among the groups, however there were more pancreatic injuries among PN groups. EN patients had less days NPO compared to both PN groups(12 days[IQR23] vs 40[54] vs 33[32],p = <0.001). Time until leak closure was less in EN patients when comparing the three groups(7 days[IQR14.5] vs 15[20.5] vs 25.5[55.8],p = 0.008). EN patients had less intra-abdominal abscesses, bacteremia, and days with drains than the PN groups(all p < 0.05). HLOS was shorter among EN patients vs both PN groups(27 days[24] vs 44[62] vs 45[31],p = 0.001). When controlling for predictors of leak, regression analysis demonstrated EN was associated with shorter HLOS(ß -24.9, 95%CI -39.0 to -10.7,p < 0.001). CONCLUSION: EN was associated with a shorter duration until leak closure, less infectious complications, and shorter length of stay. Contrary to some conventional thought, PN was not associated with decreased time until leak closure. We therefore suggest EN should be the preferred choice of nutrition in patients with duodenal leaks whenever feasible. LEVEL OF EVIDENCE: IV.
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BACKGROUND: There is limited information about expert school nurses' experiences regarding the reopening of schools in the school setting during the COVID-19 pandemic. PURPOSE: This study aimed to explore the views and experiences of reopening schools among expert school nurses during the COVID-19 pandemic. METHODS: We conducted semi-structured interviews with five focus groups of 24 school nurses. A grounded theory methodology was used to analyze emergent concepts, categories, and themes. DISCUSSION: We identified five themes related to the experiences of expert school nurses during the COVID-19 pandemic: unprepared response system, fighting alone, centering the response system, redefining roles, and together against. CONCLUSION: Despite the high workload of school nurses during the COVID-19 pandemic, the expert school nurses led to clarification and expansion of the role of the school nurse role, and highlighted the relationships among school staff who were essential participants of the school health team during the pandemic. PRACTICE IMPLICATIONS: It is imperative to shift the perception that school nurses are health professionals who play key managerial roles with collaboration within and beyond the school.
Subject(s)
COVID-19 , Focus Groups , Nurse's Role , Qualitative Research , School Nursing , Humans , COVID-19/epidemiology , COVID-19/nursing , School Nursing/organization & administration , Female , Male , Adult , Pandemics , School Health Services/organization & administration , SARS-CoV-2 , Middle Aged , SchoolsABSTRACT
This secondary analysis used data collected for the Korean Longitudinal Study of Aging from 2006 to 2018 to examine changes in life satisfaction among middle-aged adults living alone in South Korea. Individuals who were over 45 years of age, lived alone at the time of the first data collection wave, and responded at least twice to the survey over the 12-year study period were included in the final linear mixed model (N = 124). Life satisfaction increased for those who had increased assets, were widowed, and had more frequent contact with acquaintances (i.e., once a month and once a week compared with once a year). Life satisfaction decreased as the number of chronic illnesses increased for underweight individuals compared with normal weight or overweight individuals and for depressed versus non-depressed individuals. This study's findings indicate that increased social support is beneficial for middle-aged marginalized individuals, including those who are economically disadvantaged, have few social interactions, are underweight, and have chronic illnesses.
Subject(s)
Home Environment , Thinness , Middle Aged , Adult , Humans , Longitudinal Studies , Personal Satisfaction , Republic of Korea , Surveys and Questionnaires , Chronic DiseaseABSTRACT
OBJECTIVE: To develop and evaluate the effects of an interactive coaching intervention, using a self-management mobile application, on quality of life and physical and psychological factors for colorectal cancer survivors. METHODS: We developed a self-management mobile application providing social support services for post-treatment CRC survivors and evaluated its effects through baseline and post-intervention surveys. Using the biopsychosocial holistic model as the theoretical framework, automated interactive coaching technology was applied for six weeks to provide supportive services tailored for each user. To evaluate the effects of the application, self-efficacy, health practice index, depression, fear of cancer recurrence, and quality of life measures were administered to participants. A total of 34 men and 5 women were included in the analysis. RESULTS: Participants' mean age were 54.10 years and 78% of them had been diagnosed within the last five years. There were significant increases in self-efficacy (z = 2.09, p = .04), health practice index (t = 2.35, p = .02), and quality of life (t = 2.03, p = .05). More specifically, the emotional functional score increased (z = 2.23, p = .03) while both of the total symptom score (t = 2.10, p = .04) and the fatigue symptom score (z = 2.54, p = .01) decreased after six weeks of using the mobile application. CONCLUSIONS: Interventions supporting colorectal cancer survivors' self-management are critical for addressing the challenges they face after treatment and improving their quality of life. Providing social support through mobile applications could be a good strategy in terms of usability and effectiveness.
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The scope of the school nursing practice tool (SSNPT) is needed to apply and explore the gap between what school nurses perceive as important and actual practices. This study adapted and validated the Korean version of SSNPT (K-SSNPT) among 360 Korean school nurses in January 2022. The reliable and valid K-SSNPT can inform school nurses' workforce policies by capturing the current scope of school nursing practice and setting priorities for improving school health in South Korea.
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BACKGROUND: Duodenal leak is a feared complication of repair, and innovative complex repairs with adjunctive measures (CRAM) were developed to decrease both leak occurrence and severity when leaks occur. Data on the association of CRAM and duodenal leak are sparse, and its impact on duodenal leak outcomes is nonexistent. We hypothesized that primary repair alone (PRA) would be associated with decreased duodenal leak rates; however, CRAM would be associated with improved recovery and outcomes when leaks do occur. METHODS: A retrospective, multicenter analysis from 35 Level 1 trauma centers included patients older than 14 years with operative, traumatic duodenal injuries (January 2010 to December 2020). The study sample compared duodenal operative repair strategy: PRA versus CRAM (any repair plus pyloric exclusion, gastrojejunostomy, triple tube drainage, duodenectomy). RESULTS: The sample (N = 861) was primarily young (33 years) men (84%) with penetrating injuries (77%); 523 underwent PRA and 338 underwent CRAM. Complex repairs with adjunctive measures were more critically injured than PRA and had higher leak rates (CRAM 21% vs. PRA 8%, p < 0.001). Adverse outcomes were more common after CRAM with more interventional radiology drains, prolonged nothing by mouth and length of stay, greater mortality, and more readmissions than PRA (all p < 0.05). Importantly, CRAM had no positive impact on leak recovery; there was no difference in number of operations, drain duration, nothing by mouth duration, need for interventional radiology drainage, hospital length of stay, or mortality between PRA leak versus CRAM leak patients (all p > 0.05). Furthermore, CRAM leaks had longer antibiotic duration, more gastrointestinal complications, and longer duration until leak resolution (all p < 0.05). Primary repair alone was associated with 60% lower odds of leak, whereas injury grades II to IV, damage control, and body mass index had higher odds of leak (all p < 0.05). There were no leaks among patients with grades IV and V injuries repaired by PRA. CONCLUSION: Complex repairs with adjunctive measures did not prevent duodenal leaks and, moreover, did not reduce adverse sequelae when leaks did occur. Our results suggest that CRAM is not a protective operative duodenal repair strategy, and PRA should be pursued for all injury grades when feasible. LEVEL OF EVIDENCE: Therapeutic/Care Management; Level IV.
Subject(s)
Abdominal Injuries , Wounds, Penetrating , Male , Humans , Retrospective Studies , Postoperative Complications , Wounds, Penetrating/surgery , Abdominal Injuries/surgery , Anastomosis, Surgical/methodsABSTRACT
BACKGROUND: Evaluating the needs of colorectal cancer survivors is critical for developing and providing effective supportive services; however, little is known about the specific needs of the survivors. OBJECTIVES: The aim of this study was to examine the types of social support that colorectal cancer survivors need at each treatment phase. METHODS: Data were extracted using text-mining analysis from posts on an online self-help group for colorectal cancer survivors in Korea from 2011 to 2020. Classification analysis was performed based on the frequency of terms posted, and word clouds were created. RESULTS: In the pretreatment phase, support for pain and diagnostic testing were needed. In the treatment phase, needing support for colorectal cancer treatment and managing subsequent adverse events were frequently mentioned. In the posttreatment phase, informational interventions providing information on adjusting to changes in bowel functions and preventing cancer recurrence were needed. CONCLUSIONS: There were differences in the types of social support and the number of words frequently used across phases of treatment, highlighting the need for phase-specific supportive interventions. The highest identified needs, including colorectal cancer treatment and adverse events in the treatment phase, suggest that colorectal cancer survivors need additional information about treatment within the healthcare system. IMPLICATIONS FOR PRACTICE: Colorectal cancer survivors have specific needs that vary by their treatment stage. Supportive services that reflect the needs of each treatment phase are needed to improve the physical and mental health and quality of life of colorectal cancer survivors.
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Objective: To improve the quality of life and health outcomes of an increasing number of colorectal cancer patients and their caregivers, the specific needs of both should be understood across the cancer treatment trajectory. This study attempted to identify the supportive needs of patients and caregivers during each treatment phase. Methods: Using text mining, posts from a South Korean internet self-help support group for colorectal cancer were classified by assigning labels to the terms extracted according to the poster, treatment phase, and support type. The extracted terms were then classified based on term frequency, with higher term frequency indicating higher need. Results: Both caregivers and patients showed the highest term frequencies during the treatment phase. Caregivers had more high-ranking terms that were ranked higher than patients, indicating high support needs. In addition, the terms regarding treatments and diseases were ranked high. In the pre-treatment phase, test-related needs were ranked higher for both caregivers and patients. Meanwhile, patients had more highly ranked terms in the post-treatment phase, showing their high need in this phase, especially terms related to post-treatment symptoms. Caregivers had higher term frequencies of food intake during the post-treatment phase. Conclusions: This study demonstrated that the needs of colorectal cancer patients and their caregivers were not always consistent in each treatment phase. Therefore, the needs of both patients and caregivers should be considered separately in each treatment phase and supportive interventions should be provided accordingly.
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This study examined the factors associated with triage competency among school nurses in South Korea. Using a convenience sampling method, 386 school nurses employed in elementary, middle, or high schools completed a cross-sectional survey that included a modified version of the Triage Competency Scale for emergency room nurses. Information regarding experience working in schools and hospitals, education level, school types, age, emergency nursing care certifications, school locations, and serious emergency experience at school was collected. Analyses were performed using SPSS version 25.0, independent t-tests, analyses of variance, Spearman's correlation, and ordinal logistic regression. Triage competency was higher for school nurses who were employed in metropolitan regions (odds ratio [OR] = 1.63, p = 0.017) and had serious emergency experience (OR = 1.76, p = 0.008). As the participants' experience at schools or hospitals increased by one year, their triage competency score increased by 2% (OR = 1.02, p = 0.037) and 14% (OR = 1.14, p < 0.001), respectively. These findings could be used to develop policies and educational programs that promote school nurses' triage competency. Further, they suggest the importance of establishing an organizational support system to develop guidelines and a feedback system to improve school nurses' triage competency.
Subject(s)
Nurses , Triage , Clinical Competence , Cross-Sectional Studies , Humans , Republic of Korea , Schools , Surveys and QuestionnairesABSTRACT
This study examined gender differences in health behaviors for the risk of metabolic syndrome (MetS) among middle-aged adults using nationally representative data from the Seventh Korea National Health and Nutrition Examination Survey (2016-2018). The sample included data from 8677 middle-aged adults. The Health Practice Index measured health behaviors, including smoking, alcohol use, physical activity, sleeping, eating breakfast, working hours, nutritionally balanced diet, and mental stress. Complex sample multiple logistic regression analyses were conducted to determine the association between the Health Practice Index (HPI) and MetS. Men and women with poor or moderate HPI scores had significantly higher risks of having MetS than those with good HPI scores. Controlling for covariates, high-risk alcohol use (p < 0.001) and physical activity (p = 0.008) were associated with the risk of MetS in men and women, respectively. Men reporting alcohol use and women lacking a healthy diet were, respectively, 2.056 times (adjusted odds ratio (OR) = 2.056, 95% CI: 1.681-2.514) and 1.306 times (adjusted OR = 1.306, 95% CI: 1.075-1.587) more likely to have increased risks of MetS. Given these gender differences in health behaviors, developing tailored interventions could be beneficial in preventing MetS among middle-aged men and women.
Subject(s)
Metabolic Syndrome , Adult , Cross-Sectional Studies , Female , Health Behavior , Humans , Male , Metabolic Syndrome/epidemiology , Middle Aged , Nutrition Surveys , Prevalence , Republic of Korea/epidemiology , Risk Factors , Sex CharacteristicsABSTRACT
BACKGROUND: School nurses perform vital student emergency services at school, and assessing their emergency nursing care competency is critical to the safety and quality of care students receive. The purpose of the study was to develop a scale for measuring school nurses' competency. METHODS: This was an instrument development and validation study. It was conducted according to the revised DeVellis scale development process coupled with the application of the International Council of Nurses' Nursing Care Continuum Competencies Framework. Eight experts specializing in school health and emergency care evaluated the content validity, while 386 school nurses evaluated the scale. The validity evaluation comprised factor analysis, discriminative validity analysis according to differences in school nurse experience, and criterion validity analysis. Scale internal consistency was analyzed using Cronbach's α value. RESULTS: The final scale comprises a self-reported 5-point Likert scale with 30 items based on three factors and three sub-factors. Both the convergent validity of the items by factor and the discriminative validity were both confirmed. The criterion validity was also found to be positively correlated with the Triage Competency Scale. CONCLUSION: The scale may be used to identify factors influencing school nurses' competency in emergency nursing care and contribute to research in competency-based education programs.
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BACKGROUND: A rare appendiceal malignancy is characterized by both glandular and neuroendocrine histology. It often presents with dissemination of the perforated tumor to peritoneal surfaces. Current treatments involve systemic chemotherapy, cytoreductive surgery and perioperative intraperitoneal chemotherapy. METHODS: The impact of clinical, histological and treatment-related characteristics on survival were evaluated and subjected to univariate statistical analyses. All patients had stage IV disease and were treated by a uniform treatment strategy. Survival was determined from onset of disease until death or most recent follow-up. RESULTS: There were 47 patients available for study of whom 17 were male. Median age was 48 with a range of 27-65. None or a single symptom vs. 2 or more symptoms had a significant effect on survival. Median survival of the entire cohort was 45 months and 34.88% and 8.72% of patients survived 5 and 10 years, respectively. The use of neoadjuvant chemotherapy showed no impact on survival. Patients with a peritoneal cancer index (PCI) of 0-20 as compared to PCI > 20 survived longer (p = 0.012). The survival of patients able to have a complete resection as compared to an incomplete resection of disease was significant (p = 0.0087). The type of perioperative chemotherapy did not alter survival. CONCLUSIONS: These data show that patients with a lesser extent of disease with a complete cytoreduction had an improved prognosis. No benefit from systemic or perioperative regional chemotherapy was apparent. With long-term follow-up, patients with the combined glandular and neuroendocrine histology exhibiting peritoneal metastases have a guarded prognosis.
Subject(s)
Adenocarcinoma/therapy , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Appendiceal Neoplasms/therapy , Carcinoid Tumor/therapy , Neoplasms, Complex and Mixed/therapy , Peritoneal Neoplasms/therapy , Adenocarcinoma/complications , Adenocarcinoma/secondary , Administration, Intravenous , Adult , Aged , Appendiceal Neoplasms/complications , Appendiceal Neoplasms/pathology , Carcinoid Tumor/complications , Carcinoid Tumor/secondary , Cytoreduction Surgical Procedures , Doxorubicin/administration & dosage , Female , Fluorouracil/administration & dosage , Humans , Hyperthermic Intraperitoneal Chemotherapy , Infusions, Parenteral , Leucovorin/administration & dosage , Male , Middle Aged , Mitomycin/administration & dosage , Neoadjuvant Therapy , Neoplasm Staging , Neoplasm, Residual , Neoplasms, Complex and Mixed/pathology , Neuroendocrine Tumors , Perioperative Period , Peritoneal Neoplasms/complications , Peritoneal Neoplasms/secondary , Prognosis , Survival Rate , Symptom AssessmentABSTRACT
Currently available immunomodulatory therapies do not stop the pathogenesis underlying multiple sclerosis (MS) and are only partially effective in preventing the onset of permanent disability in patients with MS. Identifying a drug that stimulates endogenous remyelination and/or minimizes axonal degeneration would reduce the rate and degree of disease progression. Here, the effects of the highly selective estrogen receptor (ER) ß agonist indazole chloride (Ind-Cl) on functional remyelination in chronic experimental autoimmune encephalomyelitis (EAE) mice were investigated by assessing pathologic, functional, and behavioral consequences of both prophylactic and therapeutic (peak EAE) treatment with Ind-Cl. Peripheral cytokines from autoantigen-stimulated splenocytes were measured, and central nervous system infiltration by immune cells, axon health, and myelination were assessed by immunohistochemistry and electron microscopy. Therapeutic Ind-Cl improved clinical disease and rotorod performance and also decreased peripheral Th1 cytokines and reactive astrocytes, activated microglia, and T cells in brains of EAE mice. Increased callosal myelination and mature oligodendrocytes correlated with improved callosal conduction and refractoriness. Therapeutic Ind-Cl-induced remyelination was independent of its effects on the immune system, as Ind-Cl increased remyelination within the cuprizone diet-induced demyelinating model. We conclude that Ind-Cl is a refined pharmacologic agent capable of stimulating functionally relevant endogenous myelination, with important implications for progressive MS treatment.
Subject(s)
Encephalomyelitis, Autoimmune, Experimental/drug therapy , Estrogen Receptor beta/agonists , Hydrocarbons, Chlorinated/pharmacology , Immunologic Factors/pharmacology , Indazoles/pharmacology , Myelin Sheath/drug effects , Analysis of Variance , Animals , Blotting, Western , Female , Hydrocarbons, Chlorinated/chemistry , Immunohistochemistry , Indazoles/therapeutic use , Male , Mice , Mice, Inbred C57BL , Motor Skills/drug effects , Myelin Sheath/physiology , Rotarod Performance TestABSTRACT
Glatiramer acetate (GA; Copaxone) is an approved drug for the treatment of multiple sclerosis (MS). The underlying multifactorial anti-inflammatory, neuroprotective effect of GA is in the induction of reactive T cells that release immunomodulatory cytokines and neurotrophic factors at the injury site. These GA-induced cytokines and growth factors may have a direct effect on axon function. Building on previous findings that suggest a neuroprotective effect of GA, we assessed the therapeutic effects of GA on brain and spinal cord pathology and functional correlates using the chronic experimental autoimmune encephalomyelitis (EAE) mouse model of MS. Therapeutic regimens were utilized based on promising prophylactic efficacy. More specifically, C57BL/6 mice were treated with 2 mg/mouse/day GA for 8 days beginning at various time points after EAE post-induction day 15, yielding a thorough, clinically relevant assessment of GA efficacy within the context of severe progressive disease. Therapeutic treatment with GA significantly decreased clinical scores and improved rotorod motor performance in EAE mice. These functional improvements were supported by an increase in myelinated axons and fewer amyloid precursor protein-positive axons in the spinal cords of GA-treated EAE mice. Furthermore, therapeutic GA decreased microglia/macrophage and T cell infiltrates and increased oligodendrocyte numbers in both the spinal cord and corpus callosum of EAE mice. Finally, GA improved callosal axon conduction and nodal protein organization in EAE. Our results demonstrate that therapeutic GA treatment has significant beneficial effects in a chronic mouse model of MS, in which its positive effects on both myelinated and non-myelinated axons results in improved axon function.
Subject(s)
Axons/metabolism , Encephalomyelitis, Autoimmune, Experimental/complications , Immunosuppressive Agents/therapeutic use , Movement Disorders/drug therapy , Neural Conduction/drug effects , Peptides/therapeutic use , Action Potentials/drug effects , Action Potentials/genetics , Animals , Axons/drug effects , Basic Helix-Loop-Helix Transcription Factors/metabolism , Brain/pathology , Disease Models, Animal , Encephalomyelitis, Autoimmune, Experimental/chemically induced , Glatiramer Acetate , Immunosuppressive Agents/pharmacology , In Vitro Techniques , Mice , Mice, Inbred C57BL , Mice, Transgenic , Movement Disorders/etiology , Movement Disorders/pathology , Myelin Basic Protein/metabolism , Myelin Proteolipid Protein/genetics , Myelin Proteolipid Protein/metabolism , Nerve Tissue Proteins/metabolism , Oligodendrocyte Transcription Factor 2 , Oligodendroglia/pathology , Peptides/pharmacology , Severity of Illness Index , Spinal Cord/pathology , Time FactorsABSTRACT
BACKGROUND: Therapeutic strategies that induce effective neuroprotection and enhance intrinsic repair mechanisms are central goals for future treatment of multiple sclerosis (MS), as well as other diseases. Laquinimod (LQ) is an orally administered, central nervous system (CNS)-active immunomodulator with demonstrated efficacy in MS clinical trials and a favorable safety and tolerability profile. AIMS: We aimed to explore the pathological, functional, and behavioral consequences of prophylactic and therapeutic (after presentation of peak clinical disease) LQ treatment in the chronic experimental autoimmune encephalomyelitis (EAE) mouse model of MS. MATERIALS AND METHODS: Active EAE-induced 8-week-old C57BL/6 mice were treated with 5 or 25 mg/kg/day LQ via oral gavage beginning on EAE post-immunization day 0, 8, or 21. Clinical scores and rotorod motor performance were assessed throughout the disease course. Immune analysis of autoantigen-stimulated splenocytes, electrophysiological conduction of callosal axons, and immunohistochemistry of white matter-rich corpus callosum and spinal cord were performed. RESULTS: Prophylactic and therapeutic treatment with LQ significantly decreased mean clinical disease scores, inhibited Th1 cytokine production, and decreased the CNS inflammatory response. LQ-induced improvement in axon myelination and integrity during EAE was functional, as evidenced by significant recovery of callosal axon conduction and axon refractoriness and pronounced improvement in rotorod motor performance. These improvements correlate with LQ-induced attenuation of EAE-induced demyelination and axon damage, and improved myelinated axon numbers. DISCUSSION: Even when initiated at peak disease, LQ treatment has beneficial effects within the chronic EAE mouse model. In addition to its immunomodulatory effects, the positive effects of LQ treatment on oligodendrocyte numbers and myelin density are indicative of significant, functional neuroprotective and neurorestorative effects. CONCLUSIONS: Our results support a potential neuroprotective, in addition to immunomodulatory, effect of LQ treatment in inhibiting ongoing MS/EAE disease progression.
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Treatment of experimental autoimmune encephalomyelitis (EAE) mice with the estrogen receptor (ER) ß ligand diarylpropionitrile (DPN) has been shown to have neuroprotective effects via stimulation of endogenous myelination. The direct cellular mechanisms underlying the effects of this ERß ligand on the central nervous system are uncertain because different cell types in both the peripheral immune system and central nervous system express ERs. ERß is the target molecule of DPN because DPN treatment fails to decrease EAE clinical symptoms in global ERß-null mice. Here we investigated the potential role of ERß expression in cells of oligodendrocyte (OL) lineage in ERß ligand-mediated neuroprotection. To this end, we selectively deleted ERß in OLs using the well-characterized Cre-loxP system for conditional gene knockout (CKO) in mice. The effects of this ERß CKO on ERß ligand-mediated neuroprotective effects in chronic EAE mice were investigated. ERß CKO in OLs prevented DPN-induced decrease in EAE clinical disease. DPN treatment during EAE did not attenuate demyelination, only partially improved axon conduction, and did not activate the phosphatidylinositol 3-kinase/serine-threonine-specific protein kinase/mammalian target of rapamycin signaling pathway in ERß CKO mice. However, DPN treatment significantly increased brain-derived neurotrophic factor levels in ERß CKO mice. These findings demonstrate that signaling through ERß in OLs is essential for the beneficial myelination effects of the ERß ligand DPN in chronic EAE mice. Further, these findings have important implications for neuroprotective therapies that directly target OL survival and myelination.