Results 31 to 40 of about 82,056 (278)

Optical excitation and detection of neuronal activity [PDF]

open access: yes, 2017
Optogenetics has emerged as an exciting tool for manipulating neural activity, which in turn, can modulate behavior in live organisms. However, detecting the response to the optical stimulation requires electrophysiology with physical contact or ...
Gillette, Martha   +8 more
core   +2 more sources

A rare long-term undetected pheochromocytoma leading to Takotsubo syndrome in an older male patient: a case report

open access: yesBMC Endocrine Disorders, 2020
Background Takotsubo syndrome is an uncommon, acute, and reversible cardiomyopathy that occurs primarily in postmenopausal females. The clinical presentation of the syndrome resembles acute coronary syndrome, but coronary angiography reveals no ...
Min Chen   +3 more
doaj   +1 more source

Extra-adrenal pheochromocytoma with initial symptom of haemoptysis: a case report and review of literature

open access: yesBMC Surgery, 2021
Background Pheochromocytoma is a catecholamine-secreting tumour that leads to various symptoms. Haemoptysis is rarely caused by a pheochromocytoma occurring outside the bronchus or thoracic cavity.
Yutaka Endo   +9 more
doaj   +1 more source

Extra-Adrenal Pheochromocytoma Presenting with Life-Threatening Ventricular Tachycardia: A Case Report

open access: yesKaohsiung Journal of Medical Sciences, 2004
Extra-adrenal pheochromocytoma develops in paraganglion chromaffin cells of the sympathetic nervous system. It probably represents at least 15% of adult and 30% of childhood pheochromocytomas. Although electrocardiographic abnormalities occur in up to 75%
Wei-Ming Li   +4 more
doaj   +1 more source

Correlation of the differential expression of PIK3R1 and its spliced variant, p55α, in pan‐cancer

open access: yesMolecular Oncology, EarlyView.
PIK3R1 undergoes alternative splicing to generate the isoforms, p85α and p55α. By combining large patient datasets with laboratory experiments, we show that PIK3R1 spliced variants shape cancer behavior. While tumors lose the protective p85α isoform, p55α is overexpressed, changes linked to poorer survival and more pronounced in African American ...
Ishita Gupta   +10 more
wiley   +1 more source

Further Characterization of Dopamine Release by Permeabilized PC 12 Cells [PDF]

open access: yes, 1987
Rat pheochromocytoma cells (PC 12) permeabilized with staphylococcal α-toxin release [3H]dopamine after addition of micromolar Ca2+. This does not require additional Mg2+-ATP (in contrast to bovine adrenal medullary chromaffin cells).
Ahnert-Hilger G.   +18 more
core   +1 more source

‘Adrenal rush’ in a patient with Neurofibromatosis-1

open access: yesJournal of Community Hospital Internal Medicine Perspectives, 2020
Neurofibromatosis-1 (NF-1) is a genetic neuro-cutaneous disorder that is associated with an increased prevalence of pheochromocytoma (PHEO). However, this association may not be commonly anticipated by physicians, as patients may be normotensive.
Samiha Khan, Beenish Fayyaz, Janki Patel
doaj   +1 more source

Pathogenic Neurofibromatosis type 1 gene variants in tumors of non‐NF1 patients and role of R1276

open access: yesFEBS Open Bio, EarlyView.
Somatic variants of the neurofibromatosis type 1 (NF1) gene occur across neoplasms without clinical manifestation of the disease NF1. We identified emerging somatic pathogenic NF1 variants and hotspots, for example, at the arginine finger 1276. Those missense variants provide fundamental information about neurofibromin's role in cancer.
Mareike Selig   +7 more
wiley   +1 more source

Case of chronic indolent pheochromocytoma that caused medically controlled hypertension but treatment-resistant diabetes mellitus [PDF]

open access: yes, 2017
No abstract ...
Cho, Eun Joo   +4 more
core   +1 more source

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