In this systematic review and dose–response meta-analysis, we aimed to assess whether coffee and tea consumption is related to the risk of glioma. We performed a systematic literature search using PubMed, Embase, Scopus and the EuropePMC from the inception of database up until 1 October 2020. Exposures in the present study were coffee and tea consumption, the main outcome was the incidence of glioma. The present study compares the association between the exposure of coffee and tea with the incidence of glioma, and the results are reported in relative risks (RR). There are 12 unique studies comprising of 1 960 731 participants with 2987 glioma cases. Higher coffee consumption was associated with a statistically non-significant trend towards lower risk of glioma (RR 0·77 (95 % CI 0·55, 1·03), P= 0·11; I2:75·27 %). Meta-regression showed that the association between coffee and glioma was reduced by smoking (P= 0·029). Higher tea consumption was associated with a lower risk of glioma (RR 0·84 (95 % CI 0·71, 0·98), P= 0·030; I2:16·42 %). Sensitivity analysis by removal of case–control studies showed that higher coffee consumption (RR 0·85 (95 % CI 0·72, 1·00), P= 0·046; I2:0 %) and higher tea consumption (RR 0·81 (95 % CI 0·70, 0·93), P= 0·004; I2:0 %, Pnon-linearity = 0·140) were associated with lower risk of glioma. Dose–response meta-analysis showed that every one cup of coffee per day decreases the risk of glioma by 3 % (RR 0·97 (95 % CI 0·94, 0·99), P= 0·016, Pnon-linearity = 0·054) and every one cup of tea per day decreases the risk of glioma by 3 % (RR 0·97 (95 % CI 0·94, 1·00), P= 0·048). This meta-analysis showed apparent association between coffee and tea intake and risk of glioma.

Background: Functional magnetic resonance imaging (fMRI) is being increasingly used for the preoperative evaluation of patients with brain tumours. Methods: The study is a retrospective chart review investigating the use of clinical fMRI from 2002 through 2013 in the preoperative evaluation of brain tumour patients. Baseline demographic and clinical data were collected. The specific fMRI protocols used for each patient were recorded. Results: Sixty patients were identified over the 12-year period. The tumour types most commonly investigated were high-grade glioma (World Health Organization grade III or IV), low-grade glioma (World Health Organization grade II), and meningioma. Most common presenting symptoms were seizures (69.6%), language deficits (23.2%), and headache (19.6%). There was a predominance of left hemispheric lesions investigated with fMRI (76.8% vs 23.2% for right). The most commonly involved lobes were frontal (64.3%), temporal (33.9%), parietal (21.4%), and insular (7.1%). The most common fMRI paradigms were language (83.9%), motor (75.0%), sensory (16.1%), and memory (10.7%). The majority of patients ultimately underwent a craniotomy (75.0%), whereas smaller groups underwent stereotactic biopsy (8.9%) and nonsurgical management (16.1%). Time from request for fMRI to actual fMRI acquisition was 3.1±2.3 weeks. Time from fMRI acquisition to intervention was 4.9±5.5 weeks. Conclusions: We have characterized patient demographics in a retrospective single-surgeon cohort undergoing preoperative clinical fMRI at a Canadian centre. Our experience suggests an acceptable wait time from scan request to scan completion/analysis and from scan to intervention.

Data on the association of adherence to the Dietary Approaches to Stop Hypertension (DASH)-style and glioma are scarce. We aimed to examine the association between adherence to the DASH-style diet and glioma in Iranian adults. In this study, 128 pathologically confirmed cases of glioma were recruited from hospitals and 256 age- and sex-matched controls were enrolled from other wards of the hospital. Dietary intakes were assessed using a 126-item validated FFQ. Adherence to the DASH-style diet was followed considering the healthy and non-healthy foods emphasised in the DASH dietary pattern. After controlling for potential confounders, individuals with the greatest adherence to the DASH diet were 72 % less likely to have glioma compared with those with the lowest adherence (OR 0·28; 95 % CI 0·13, 0·57). Individuals with the highest consumption of fruits had lower odds for having glioma compared with those with the lowest intake (OR 0·31; 95 % CI 0·14, 0·68). A protective association was also observed between consumption of legumes and nuts and risk of glioma (OR 0·23; 95 % CI 0·10, 0·53). We found a significant positive association between red and processed meat (OR 2·60; 95 % CI 1·16, 5·81) and salt intakes (OR 2·87; 95 % CI 1·30, 6·34) and risk of glioma, after taking all potential confounders into account. Adherence to the DASH-style dietary pattern was inversely associated with glioma. In addition, some components of the DASH diet, including red meats and salt intakes, were positively associated with glioma. Consumption of nuts and legumes as well as fruits was inversely associated with glioma. Prospective cohort studies are required to confirm our findings.

Objective: This exploratory study applied a biopsychosocial perspective to investigate cognitive and psychosocial factors related to emotional adjustment and QoL after brain tumour. Methods: Participants included 30 adults with a brain tumour (60% benign and 40% malignant) who were aged 28 to 71 years (M = 51.5, SD = 12.3) and on average 5.4 years post-diagnosis (SD = 5.6 years). Participants completed a brief battery of cognitive tests and self-report measures of emotional status (Depression, Anxiety Stress Scale), subjective impairment (Patient Competency Rating Scale), coping (COPE), social support (Brief Social Support Questionnaire), and QoL (Functional Assessment of Cancer Therapy — Brain Tumour [FACT-Br]). Results: QoL was significantly associated with global cognitive ability (r = .49, p < .01), subjective impairment (r = .66, p < .01), and satisfaction with support (r = .50, p < .05). Level of depressive symptoms was significantly correlated with premorbid IQ (r = -.49, p < .01), use of planning to cope (r = -.48, p < .01), and satisfaction with support (r = -.47, p < .01). Conclusions: Overall, these exploratory findings indicate that emotional adjustment and QoL after brain tumour is related to a slightly different pattern of neuropsychological, psychological (self-perceptions and coping) and social factors. The clinical implications for interventions with individuals with brain tumour are discussed.

This study aimed to examine the associations among functional impairments, strain and depressive symptoms for caregivers of individuals with brain tumour and other cancers. Sixty-three caregivers (71% female) of individuals with brain tumour (n = 27) and other cancers (n = 36) were recruited from community services. Participants rated their level of depressive symptoms and strain and the functional impairments of the individual with cancer. Overall, approximately 25% of the total caregiver sample was in the clinical range for depressive symptoms. For caregivers of individuals with brain tumour, strain was significantly related to depressive symptoms (r = .57) and the individual's functional impairments (r = –.58); however, level of depressive symptoms was not significantly related to functional impairments (p > .05). For caregivers of individuals with other cancer, level of depressive symptoms was significantly correlated with strain (r = .50) and their relatives' degree of cognitive, interpersonal and emotional difficulties (r = –.36–.46), but not with activities of daily living (p > .05). In a multivariate analysis involving all the caregivers, strain predicted depressive symptoms (R2 = .32, p < .001) after controlling for gender and cancer type. In addition, strain was found to significantly mediate the effects of the interpersonal and emotional difficulties of individuals with cancer on caregiver depressive symptoms. Overall, these findings highlight the need to develop and evaluate strategies for alleviating the role strain associated with supporting individuals with cancer.

Introduction: Research has indicated that individuals may report benefit finding (BF) as a result of experiencing potentially life-threatening traumatic events, such as being diagnosed with cancer or sustaining an acquired brain injury (ABI). No study to date has examined the incidence and correlates of BF in adult brain tumour samples. The present study aimed to investigate the association between BF and demographic and psychosocial variables in adults treated for a benign meningioma. Method: Seventy participants aged 36 to 87 years completed questionnaires that assessed perceived BF resulting from one's meningioma experience, intrusion and avoidance symptoms, emotional wellbeing and perceived quality of social support. Results: 39% of the sample had been diagnosed with their tumour within a 2-year period prior to assessment (‘early’ meningioma subgroup), while the remaining 61% of participants had been diagnosed with their tumour for more than 2 years (‘late’ meningioma subgroup). Almost two thirds (63%) of the sample reported deriving a moderate amount of BF due to their meningioma experience; although different psychological variables were found to be associated with BF according to group status. Whereas greater BF was found to be significantly associated with elevated depressive symptoms in the ‘early’ subsample, elevated BF was significantly positively correlated with intrusions and avoidance symptoms in the ‘late’ subsample. Conclusions: The findings indicate that BF may co-occur in context of both adaptive and positive illusory processes, which is consistent with the Janus-Face model of growth following adversity. The findings also support the use of psychosocial interventions to facilitate psychosocial adjustment following health crises.

Radiosensitive neurogenic stem cells reside in the hippocampi, suggesting that avoidance of the hippocampi may be an important strategy to reduce potential radiation-related cognitive effects. Six patients treated for base of skull tumours were re-planned using co-planar helical fan beam arc therapy (tomotherapy) and co-planar and non-coplanar volumetric arc techniques (RapidArc). The hippocampi were contoured as avoidance structures with the specific goal of minimising the dose. Two gross target volume (GTV) to planning target volume (PTV) expansions (10 and 2 mm) were considered to evaluate the impact of margin selection on organ at risk (OAR) sparing. The dose prescription was 50 Gy to >95% of the PTV. Comparison of the hippocampus avoidance plans demonstrated the importance of non-coplanar delivery when the 10 mm margin was used. With the 2 mm margin, both co-planar and non-coplanar delivery provided similar degrees of sparing. A mean dose of 3–4 Gy and a V6Gy <5% to the hippocampi was realised with the hippocampus sparing techniques. Our comparisons suggest interventions to minimise GTV to PTV margins will have a more profound influence on multiple OAR sparing than the choice of intensity modulated arc delivery technique.