The transretinal pathway of optic nerve fibers in the retinas of cynomolgus and bonnet monkeys was studied by light microscopy following small intraretinal injections of horseradish peroxidase (HRP). Injections of HRP into nerve bundles at the optic disc labeled a few ectopic ganglion cells, in addition to those in the related retinal sector. Injections into nerve bundles in the retina labeled ...

by increasing demands on paper products and shortage of fiber resources, various strategies were introduced to meet the requirements. in this context, application of mineral fibers is a novel and growing approach. this study was aimed to reduce the plant fibers by application of, mineral fiber in the papermaking system. application of 0, 10, 20, and 30% loadings of rock wool mineral fibers (rwm...

The distribution of nerve fibers containing either calcitonin gene-related peptide (CGRP) and substance P (SP) was investigated in rat skin with special reference to their relationship to the lymphatic vessels. These nerve fibers exhibited a similar distribution pattern but the former were more numerous than the latter. In the dermis and subcutaneous layers, thin nerve fibers containing CGRP or...

The thyroid and parathyroid glands are dually innervated by sympathetic (cervical sympathetic trunk [CST]) and parasympathetic (superior laryngeal nerve [SLN]) nerve fibers. We examined the effects of electrical stimulation of efferent or afferent nerve fibers innervating the thyroid and parathyroid glands on the secretion of immunoreactive calcitonin (iCT), parathyroid hormone (iPTH), 3,3',5-t...

objective: diabetic neuropathy is the most common complication of diabetes mellitus affecting the nervous system. in this study, we investigated the in vivo effects of combined administration of 4-methylcatechol (4-mc) and progesterone (p) as a potential therapeutic tool for sciatic nerve function improvement and its role in histomorphological alterations in diabetic neuropathy in rats. materia...

Regeneration is abortive following adult mammalian CNS injury. We have investigated whether increasing the intrinsic growth state of primary sensory neurons by a conditioning peripheral nerve lesion increases regrowth of their central axons. After dorsal column lesions, all fibers stop at the injury site. Animals with a peripheral axotomy concomitant with the central lesion show axonal growth i...

objective: to assess the effect of combination of pulsed electromagnetic fields (pemf) with predatory stress on transected sciatic nerve regeneration in rats.  methods: in sham- operated group (sog) the nerve was manipulated and left intact. the 10-mm rat sciatic nerve gap was created in rats. in transected group (transected) nerve stumps were sutured to adjacent muscle and in vein graft group ...

Studies with the cathode ra.y oscillograph have shown that the fibers composing a peripheral nerve range widely in their reactivities. For instance, a large nerve, such as the sciatic, contains fibers conducting at rates varying as widely as 50 to 1 with an even wider irritability range as determined by induction shocks. But neither in this nor in other nerves is there an even numerical distrib...

The retinal fiber layer and the juxtaretinal portion of the optic nerve of goldfish have been studied with light and electron microscopy in order to determine whether the age-related order of fibers in the nerve originates in the retina. In the retina, no patent spaces (channels) were noted. The fibers ran in fascicles and consisted of two classes: nonmyelinated fibers, which ran superficially ...