منابع مشابه
Alzheimer's disease: Clues from flies and worms
Presenilin mutations give rise to familial Alzheimer's disease and result in elevated production of amyloid beta peptide. Recent evidence that presenilins act in developmental signalling pathways may be the key to understanding how senile plaques, neurofibrillary tangles and apoptosis are all biochemically linked.
متن کاملPin Worms Presenting as Suspected Crohn’s Disease
BACKGROUND Inflammatory bowel disease (IBD) is well recognized in developed countries and is generally among the differential diagnoses of young patients presenting with refractory diarrhea once other more common etiologies have been excluded. Pinworm infections, on the other hand, are not as common among adults in the United States. CASE REPORT Based on computed tomography features, a 24-yea...
متن کاملWorms
Sir.?I slit. 11 deem it a great, favour if yon will kindly allow me a little space in your well-known journal for the following few lines with a view to draw the attention of your numerous readers to the subject. During the last two years of a practice attending over 20 years I have come across a series of cases suffering from a peculiar kind of worm which fly within a few seconds of their expu...
متن کاملWorms, Life and Death
I never expected to spend most of my life studying worms. However, when it came time for me to choose an area for my postdoctoral research, I was intrigued both with the problems of neurobiology and with the approaches of genetics. Having heard that a new “genetic organism” with a remarkably simple nervous system was being explored by Sydney Brenner – the microscopic soil nematode Caenorhabditi...
متن کاملWorms, gaps, and hydras
We define a direct translation from finite rooted trees to finite natural functions which shows that the Worm Principle introduced by Lev Beklemishev is equivalent to a very slight variant of the well-known Kirby-Paris’ Hydra Game. We further show that the elements in a reduction sequence of the Worm Principle determine a bad sequence in the well-quasi-ordering of finite sequences of natural nu...
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ژورنال
عنوان ژورنال: Gut
سال: 1978
ISSN: 0017-5749
DOI: 10.1136/gut.19.2.159