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A young woman presented with significant weight loss and malnutrition secondary to decreased food intake. Her presentation was felt to be consistent with a psychiatric diagnosis of avoidant restrictive food intake disorder (ARFID). She received 3 years of treatment for ARFID, but failed to make significant progress and ultimately required a feeding tube. Incidentally, she noted severe visual field changes at this time, which triggered further workup including an MRI of the head. This revealed the true diagnosis of a suprasellar and pineal germinoma. There are several cases in the literature of germinomas presenting with decreased food intake that were misdiagnosed as anorexia nervosa. However, this is the first reported case of a multifocal germinoma presenting as ARFID. Criteria for the diagnosis of ARFID do not include body image distortion, potentially making this eating disorder more prone to misdiagnosis.Disease relapse remains a major cause of treatment failure in patients receiving allogeneic hematopoietic cell transplantation (alloHCT) for high-risk acute leukemias or myelodysplastic syndromes (MDS). Comprehensive data on outcomes after post-transplant relapse are lacking, especially in pediatric patients. Our objective was to assess the impact of various transplant-, patient-, and disease-related variables on survival and outcomes in patients who relapse after alloHCT. We describe our institutional experience with 221 pediatric patients who experienced disease relapse after their first alloHCT for acute leukemias or MDS between 1990 and 2018. In a multivariable model, being in first complete remission at first alloHCT, longer duration of remission after alloHCT, experiencing GVHD and receiving a transplant in a more recent time period were significantly associated with a higher likelihood of receiving a second alloHCT after post-transplant relapse. Of these variables, only longer interval from alloHCT to relapse, receiving a second alloHCT or DLI, and receiving a transplant in a more recent time period were associated with improved overall survival. selleck kinase inhibitor Our data support pursuing second alloHCT for patients who have experienced relapse after their first transplant, as that remains the only salvage modality with a reasonable chance of inducing long-term remission.Monoclonal antibodies against checkpoint receptors or its ligands have demonstrated high response rates and durable remissions in patients with relapsed Hodgkin lymphoma (HL) and other lymphoid malignancies. However, most patients will eventually progress on therapy and may benefit from further treatments including allogenic hematopoietic cell transplantation (allo-HCT). Furthermore, the use of checkpoint inhibitors (CPI) has emerged as a treatment option for patients relapsing after allo-HCT. The immune effects of the checkpoint blockade leading to a T-cell activation have raised some concerns on the safety of these therapies used either before or after allo-HCT, due to the potential risk of graft-versus-host disease (GVHD). Furthermore, CPI might also induce other immune toxicities, that can affect almost any organ, as a result of the dysregulation on the immune system balance. This review aims to focus on the evidence behind the use of CPI in patients with lymphoma who undergo allo-HCT. We summarize the clinical data generated to date about the use of CPI in HL and other lymphoid malignancies, the mechanisms of checkpoint inhibition in the context of allo-HCT as well as the clinical and biological observations of different GVHD prophylaxis in this setting. Furthermore, we discuss the evidence from retrospective series and early clinical trials on the feasibility and safety of the use of CPI in patients who relapsed after allo-HCT.Smartphone applications ("apps") with artificial intelligence (AI) algorithms are increasingly used in healthcare. Widespread adoption of these apps must be supported by a robust evidence-base and app manufacturers' claims appropriately regulated. Current CE marking assessment processes inadequately protect the public against the risks created by using smartphone diagnostic apps.
The radiosensitising effect of the poly(ADP-ribose) polymerase inhibitor olaparib on tumours has been reported. However, its effect on normal tissues in combination with radiation has not been well studied. Herein, we investigated the therapeutic index of olaparib combined with hemithoracic radiation in a urethane-induced mouse lung cancer model.
To assess tolerability, A/J mice were treated with olaparib plus whole thorax radiation (13 Gy), body weight changes were monitored and normal tissue effects were assessed by histology. In anti-tumour (intervention) studies, A/J mice were injected with urethane to induce lung tumours, and were then treated with olaparib alone, left thorax radiation alone or the combination of olaparib plus left thorax radiation at 8 weeks (early intervention) or 18 weeks (late intervention) after urethane injection. Anti-tumour efficacy and normal tissue effects were assessed by visual inspection, magnetic resonance imaging and histology.
Enhanced body weight loss and oesophageal toxicity were observed when olaparib was combined with whole thorax but not hemithorax radiation. In both the early and late intervention studies, olaparib increased the anti-tumour effects of hemithoracic irradiation without increasing lung toxicity.
The addition of olaparib increased the therapeutic index of hemithoracic radiation in a mouse model of lung cancer.
The addition of olaparib increased the therapeutic index of hemithoracic radiation in a mouse model of lung cancer.
Epidemiological studies and meta-analyses show an association between statin use and a reduced incidence of colorectal cancer (CRC). We have shown that statins act on CRC through bone morphogenetic protein (BMP) signalling, but the exact cellular targets and underlying mechanism of statin action remain elusive. In this study, we set out to assess the influence of statins on global cancer cell signalling by performing an array-based kinase assay using immobilised kinase substrates spanning the entire human kinome.
CRC cells with or without Lovastatin treatment were used for kinome analysis. Findings on kinome arrays were further confirmed by immunoblotting with activity-specific antibodies. Experiments in different CRC cell lines using immunoblotting, siRNA-mediated knockdown and treatment with specific BMP inhibitor Noggin were performed. The relevance of in vitro findings was confirmed in xenografts and in CRC patients treated with Simvastatin.
Kinome analysis can distinguish between non-specific, toxic effects caused by 10 µM of Lovastatin and specific effects on cell signalling caused by 2 µM Lovastatin.
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