| Records |
Author  |
Alshehri, M.M.; Robbins, S.M.; Senger, D.L. |
| Title |
The Role of Neurotrophin Signaling in Gliomagenesis: A Focus on the p75 Neurotrophin Receptor (p75NTR/CD271) |
Type |
Journal Article |
| Year |
2017 |
Publication |
Vitamins and Hormones |
Abbreviated Journal |
Vitam Horm |
| Volume |
104 |
Issue |
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Pages |
367-404 |
| Keywords |
Brain tumor; Cd271; Cancer stem cells; Glioblastoma; Glioma invasion; Nerve growth factor; Neurotrophin; p75(NTR) |
| Abstract |
The p75 neurotrophin receptor (p75NTR, a.k.a. CD271), a transmembrane glycoprotein and a member of the tumor necrosis family (TNF) of receptors, was originally identified as a nerve growth factor receptor in the mid-1980s. While p75NTR is recognized to have important roles during neural development, its presence in both neural and nonneural tissues clearly supports the potential to mediate a broad range of functions depending on cellular context. Using an unbiased in vivo selection paradigm for genes underlying the invasive behavior of glioma, a critical characteristic that contributes to poor clinical outcome for glioma patients, we identified p75NTR as a central regulator of glioma invasion. Herein we review the expanding role that p75NTR plays in glioma progression with an emphasis on how p75NTR may contribute to the treatment refractory nature of glioma. Based on the observation that p75NTR is expressed and functional in two critical glioma disease reservoirs, namely, the highly infiltrative cells that evade surgical resection, and the radiation- and chemotherapy-resistant brain tumor-initiating cells (also referred to as brain tumor stem cells), we propose that p75NTR and its myriad of downstream signaling effectors represent rationale therapeutic targets for this devastating disease. Lastly, we provide the provocative hypothesis that, in addition to the well-documented cell autonomous signaling functions, the neurotrophins, and their respective receptors, contribute in a cell nonautonomous manner to drive the complex cellular and molecular composition of the brain tumor microenvironment, an environment that fuels tumorigenesis. |
| Address |
Arnie Charbonneau Cancer Centre, University of Calgary, Calgary, AB, Canada. Electronic address: senger@ucalgary.ca |
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English |
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0083-6729 |
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| Notes |
PMID:28215302 |
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no |
| Call Number |
ref @ user @ |
Serial |
96606 |
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| Author |
Ayash, C.; Costas-Muniz, R.; Badreddine, D.; Ramirez, J.; Gany, F. |
| Title |
An Investigation of Unmet Socio-Economic Needs Among Arab American Breast Cancer Patients Compared with Other Immigrant and Migrant Patients |
Type |
Journal Article |
| Year |
2017 |
Publication |
Journal of Community Health |
Abbreviated Journal |
J Community Health |
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Issue |
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Pages |
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| Keywords |
Arabs; Breast cancer; Immigrant health |
| Abstract |
Although Arabs are a growing population in the United States, they are a hidden minority when compared to larger, more studied groups like Latinos and Caribbean immigrants of African descent (CIAD). There is limited research pertaining to patients' unmet socioeconomic and supportive care needs when undergoing breast cancer treatment, particularly among immigrants and migrants. This is a comparative study of a nested cohort of 36 Arabs, 145 Latinos and 128 CIAD breast cancer patients participating in the Integrated Cancer Care Access Network and their areas of needed assistance. The patients were recruited from eleven community cancer clinics in New York City and through community based organizations. Patients most commonly reported needing financial, transportation, and food assistance. Arabs were more likely than their CIAD and Latino counterparts to have health insurance and legal aid needs. Arabs also has the highest proportion of patients unaware of their own cancer stage, at odds with their report of lower information needs than the other groups. Additional culturally tailored Arabic language interventions are needed to educate Arabic speaking breast cancer patients to help facilitate access to available services. |
| Address |
Arab Health Initiative, Memorial Sloan Kettering Cancer Center, Immigrant Health and Cancer Disparities Service, 485 Lexington Avenue, 2nd floor, New York, NY, USA |
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0094-5145 |
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| Notes |
PMID:28669006 |
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no |
| Call Number |
ref @ user @ |
Serial |
97265 |
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| Author |
Ayash, C.; Costas-Muniz, R.; Badreddine, D.; Ramirez, J.; Gany, F. |
| Title |
An Investigation of Unmet Socio-Economic Needs Among Arab American Breast Cancer Patients Compared with Other Immigrant and Migrant Patients |
Type |
Journal Article |
| Year |
2017 |
Publication |
Journal of Community Health |
Abbreviated Journal |
J Community Health |
| Volume |
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Issue |
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Pages |
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| Keywords |
Arabs; Breast cancer; Immigrant health |
| Abstract |
Although Arabs are a growing population in the United States, they are a hidden minority when compared to larger, more studied groups like Latinos and Caribbean immigrants of African descent (CIAD). There is limited research pertaining to patients' unmet socioeconomic and supportive care needs when undergoing breast cancer treatment, particularly among immigrants and migrants. This is a comparative study of a nested cohort of 36 Arabs, 145 Latinos and 128 CIAD breast cancer patients participating in the Integrated Cancer Care Access Network and their areas of needed assistance. The patients were recruited from eleven community cancer clinics in New York City and through community based organizations. Patients most commonly reported needing financial, transportation, and food assistance. Arabs were more likely than their CIAD and Latino counterparts to have health insurance and legal aid needs. Arabs also has the highest proportion of patients unaware of their own cancer stage, at odds with their report of lower information needs than the other groups. Additional culturally tailored Arabic language interventions are needed to educate Arabic speaking breast cancer patients to help facilitate access to available services. |
| Address |
Arab Health Initiative, Memorial Sloan Kettering Cancer Center, Immigrant Health and Cancer Disparities Service, 485 Lexington Avenue, 2nd floor, New York, NY, USA |
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English |
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0094-5145 |
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| Notes |
PMID:28669006 |
Approved |
no |
| Call Number |
ref @ user @ |
Serial |
98018 |
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| Author |
Azoulay, M.; Santos, F.; Shenouda, G.; Petrecca, K.; Oweida, A.; Guiot, M.C.; Owen, S.; Panet-Raymond, V.; Souhami, L.; Abdulkarim, B.S. |
| Title |
Benefit of re-operation and salvage therapies for recurrent glioblastoma multiforme: results from a single institution |
Type |
Journal Article |
| Year |
2017 |
Publication |
Journal of Neuro-Oncology |
Abbreviated Journal |
J Neurooncol |
| Volume |
132 |
Issue |
3 |
Pages |
419-426 |
| Keywords |
Bevacizumab; Glioblastoma; Radiation; Recurrence; Surgery; Temozolomide |
| Abstract |
The optimal management of recurrent glioblastoma (GBM) has yet to be determined. We aim to assess the benefits of re-operation and salvage therapies (chemotherapy and/or re-irradiation) for recurrent GBM and to identify prognostic factors associated with better survival. All patients who underwent surgery for GBM between January 2005 and December 2012 followed by adjuvant radiotherapy, and who developed GBM recurrence on imaging were included in this retrospective study. Univariate and multivariate analysis was performed using Cox models in order to identify factors associated with overall survival (OS). One hundred and eighty patients treated to a dose of 60 Gy were diagnosed with recurrent GBM. At a median follow-up time of 6.2 months, the median survival (MS) from time of recurrence was 6.6 months. Sixty-nine patients underwent repeat surgery for recurrence based on imaging. To establish the benefits of repeat surgery and salvage therapies, 68 patients who underwent repeat surgery were matched to patients who did not based on extent of initial resection and presence of subventricular zone involvement at recurrence. MS for patients who underwent re-operation was 9.6 months, compared to 5.3 months for patients who did not have repeat surgery (p < 0.0001). Multivariate analysis in the matched pairs confirmed that repeat surgery with the addition of other salvage treatment can significantly affect patient outcome (HR 0.53). Re-operation with additional salvage therapies for recurrent GBM provides survival prolongation at the time of progression. |
| Address |
Department of Oncology, Division of Radiation Oncology, Cedars Cancer Centre, McGill University Health Centre, 1001 Decarie Boulevard, Montreal, QC, H4A 3J1, Canada. bassam.abdulkarim@mcgill.ca |
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English |
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0167-594X |
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| Notes |
PMID:28374095 |
Approved |
no |
| Call Number |
ref @ user @ |
Serial |
96599 |
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| Author |
Barros, J.; Morales, S.; Echavarri, O.; Garcia, A.; Ortega, J.; Asahi, T.; Moya, C.; Fischman, R.; Maino, M.P.; Nunez, C. |
| Title |
Suicide detection in Chile: proposing a predictive model for suicide risk in a clinical sample of patients with mood disorders |
Type |
Journal Article |
| Year |
2017 |
Publication |
Revista Brasileira de Psiquiatria (Sao Paulo, Brazil : 1999) |
Abbreviated Journal |
Rev Bras Psiquiatr |
| Volume |
39 |
Issue |
1 |
Pages |
1-11 |
| Keywords |
Adolescent; Adult; Chile; Female; Humans; Male; Mental Disorders/complications/*psychology; Middle Aged; Models, Theoretical; Risk Factors; Sensitivity and Specificity; Socioeconomic Factors; Suicide/*prevention & control; Surveys and Questionnaires; Young Adult |
| Abstract |
Objective:: To analyze suicidal behavior and build a predictive model for suicide risk using data mining (DM) analysis. Methods:: A study of 707 Chilean mental health patients (with and without suicide risk) was carried out across three healthcare centers in the Metropolitan Region of Santiago, Chile. Three hundred forty-three variables were studied using five questionnaires. DM and machine-learning tools were used via the support vector machine technique. Results:: The model selected 22 variables that, depending on the circumstances in which they all occur, define whether a person belongs in a suicide risk zone (accuracy = 0.78, sensitivity = 0.77, and specificity = 0.79). Being in a suicide risk zone means patients are more vulnerable to suicide attempts or are thinking about suicide. The interrelationship between these variables is highly nonlinear, and it is interesting to note the particular ways in which they are configured for each case. The model shows that the variables of a suicide risk zone are related to individual unrest, personal satisfaction, and reasons for living, particularly those related to beliefs in one's own capacities and coping abilities. Conclusion:: These variables can be used to create an assessment tool and enables us to identify individual risk and protective factors. This may also contribute to therapeutic intervention by strengthening feelings of personal well-being and reasons for staying alive. Our results prompted the design of a new clinical tool, which is fast and easy to use and aids in evaluating the trajectory of suicide risk at a given moment. |
| Address |
Private practice |
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English |
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1516-4446 |
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| Notes |
PMID:27783715 |
Approved |
no |
| Call Number |
ref @ user @ |
Serial |
97654 |
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