Selective cell death in glaucoma: does it really occur?

Selective cell death in glaucoma: does it really occur?

Ganglion cell death in glaucoma: what do we really know?

What are the apparent characteristics of ganglion cells in glaucoma? Glaucomatous optic neuropathy is a chronic process which progresses over many years. Data derived from clinical observations and from animal experiments suggest that the axons of the optic nerve and the retinal ganglion cell somata do not die at the same time but that death can vary between months and many years. 2 Glaucoma pa...

Adrenopause – does it really exist?

In ageing human adrenal glands there occur some morphological changes which result in alterations of their cortex endocrine function. Glucocorticoid-excreting cells in the zona glomerulosa live longer than androgen-producing cells in the zona reticularis, which undergo significant apoptosis. Therefore, in elderly humans cortisol levels are normal (significantly higher than at young age), while ...

Coral snake mimicry: does it occur?

Field observations and experimental evidence refute previous objections to the coral snake mimicry hypothesis. Concordant color pattern variation spanning hundreds of miles and several presumed venomous models strongly suggests that several harmless or mildly venomous colubrid snakes are indeed mimics of highly venomous elapids.

Retrieval plus scanning: does it occur?

In the two experiments reported here, we tested the retrieval-plus-scan model of delayed probe recognition by adding a second probe 2 sec after subjects had responded to the first probe. According to this model, the list items should still be in consciousness from the first probe at the time of the second probe. Consequently, on tests in which the first probe had been tested immediately, we exp...