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8% in 2018. Only 12.6% of people in 2016 indicated that they would send patients with stroke to the nearest hospital capable of performing thrombolytic therapy, but there was a nearly threefold increase (52.5%) in this number by 2018. More than 1000 major hospitals joined the Stroke 1-2-0 STF, and more than 20 000 'stroke warriors' have joined our stroke awareness improvement effort so far. Stroke 1-2-0 stroke awareness programme is well-implemented and accepted, and is generating profound improvement in stroke awareness in China. © Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.OBJECTIVE To update the 2016 American Academy of Neurology (AAN) practice advisory for patients with stroke and patent foramen ovale (PFO). METHODS The guideline panel followed the AAN 2017 guideline development process to systematically review studies published through December 2017 and formulate recommendations. MAJOR RECOMMENDATIONS In patients being considered for PFO closure, clinicians should ensure that an appropriately thorough evaluation has been performed to rule out alternative mechanisms of stroke (level B). https://www.selleckchem.com/products/rin1.html In patients with a higher risk alternative mechanism of stroke identified, clinicians should not routinely recommend PFO closure (level B). Clinicians should counsel patients that having a PFO is common; that it occurs in about 1 in 4 adults in the general population; that it is difficult to determine with certainty whether their PFO caused their stroke; and that PFO closure probably reduces recurrent stroke risk in select patients (level B). In patients younger than 60 years with a PFO and embolic-appearing infarct and no other mechanism of stroke identified, clinicians may recommend closure following a discussion of potential benefits (absolute recurrent stroke risk reduction of 3.4% at 5 years) and risks (periprocedural complication rate of 3.9% and increased absolute rate of non-periprocedural atrial fibrillation of 0.33% per year) (level C). In patients who opt to receive medical therapy alone without PFO closure, clinicians may recommend an antiplatelet medication such as aspirin or anticoagulation (level C). © 2020 American Academy of Neurology.Treatment of ovarian cancer (OC) is limited by extensive metastasis and yet it remains poorly understood. We have studied the critical step of metastatic colonization in the context of the productive interactions with the metastatic microenvironment with a goal of identifying key regulators. By combining microRNA expression analysis using an organotypic 3D culture model of early OC metastasis with that of matched primary and metastatic tumors from 42 OC patients, we identified miR-4454 as a key regulator of both early colonization and advanced metastasis in OC patients. miR-4454 was downregulated in the metastasizing OC cells through paracrine signals from microenvironmental fibroblasts, which promoted migration, invasion, proliferation and clonogenic growth in OC cells as well as their ability to penetrate through the outer layers of the omentum. Stable overexpression of miR-4454 decreased metastasis in OC xenografts. Its mechanism of action was through the upregulation of its targets, secreted protein acidic and cysteine rich (SPARC) and BCL2 associated athanogene 5 (BAG5), which activated focal adhesion kinase (FAK) signaling, promoted mutant p53 gain of function by its stabilization and inhibited apoptosis. Since microenvironment-induced downregulation of miR-4454 is essential for early and advanced metastasis, targeting it could be a promising therapeutic approach. Implications This study identifies a microRNA, miR-4454, which is downregulated by signals from the microenvironment and promotes early and advanced OC metastasis through its effects on FAK activation, mutant p53 stabilization and apoptosis inhibition. Copyright ©2020, American Association for Cancer Research.Transient global amnesia (TGA) is characterised by the sudden onset of isolated anterograde amnesia, which resolves within 24 hours. Here, we discuss the case of a 63-year-old woman who underwent a transoesophageal echocardiogram (TOE) as part of her workup for pulmonary hypertension. She was well on the morning of the procedure, and following consent, underwent transoesophageal echocardiography without sedation. The procedure was uncomplicated with normal observations throughout, confirming a suspected secundum atrial septal defect. Immediately following oesophageal extubation, it was noted that the patient was disoriented. The physical neurological examination was unremarkable. Urgent MRI of the brain showed normal anatomy; a diagnosis of TGA was made. Within 10 hours of onset, the patient was back to her baseline. Isolated anterograde amnesia following transoesophageal echocardiography should raise the clinical suspicion of TGA. Prompt clinical examination and support from other specialties are paramount in making the right diagnosis. © BMJ Publishing Group Limited 2020. No commercial re-use. See rights and permissions. Published by BMJ.A 51-year-old woman had been diagnosed and treated for schizophrenia for 10 years. Two weeks prior to admission, she developed headache and diplopia. Then, she was found unconscious and was sent to the hospital. A tumour in the left frontal lobe of the brain, causing brain herniation, was diagnosed and surgical excision of tumour was performed immediately. The psychotic symptoms of the patient were completely resolved after surgery. The histological diagnosis was meningioma. This case demonstrates an uncommon presentation of meningioma, the most common primary brain tumour. Patients presenting with psychotic symptoms may be misdiagnosed with schizophrenia, when a tumour is present, allowing the tumour to grow and causing associated complications. Early diagnosis and treatment could prevent mortality and morbidity. The treating physician should be aware of organic possibilities and carefully search for atypical presentations of psychiatric disorders in their patients. © BMJ Publishing Group Limited 2020. No commercial re-use.
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