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Quantitative study of neuronal degeneration induced by Ricinus toxin and crush of postganglionic nerves in the ciliary ganglion of quail.
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The effects of Ricinus toxin on the neurons of the ciliary ganglia were investigated in the quail. The neuronal death and the morphological alterations of the ganglionic cells were assessed following injection of the toxin in the anterior chamber of the eye or after application of the toxin on the
Autotomy in rats after nerve section compared with nerve degeneration following intraneural injection of Ricinus communis agglutinin I.
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Partial unilateral deafferentation of the hind limb of rats was carried out by section of the sciatic nerve or the intraneural injection of Ricinus communis agglutinin 1 (RCA I). The development of autotomy was observed over a 6 week period. The axotomized animals autotomized more than those
Projection of forelimb nerve afferents to external cuneate nucleus of the rat as revealed by intraneural injection of a neurotoxic lectin, Ricinus communis agglutinin.
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This study seeks to extend the observations of previous studies of projection of primary afferent fibres from the forelimb nerves and muscles to the external cuneate nucleus (ECN) of mammals using a neurotoxic lectin, Ricinus communis agglutinin (RCA) to achieve chemical ganglionectomy of the dorsal
Ultrastructural changes of the nodose ganglion cells following an intraneural injection of Ricinus communis agglutinin-60 into the vagus nerve in hamsters.
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Virtually all the ganglion cells in the nodose ganglion in hamsters underwent rapid degeneration following an intraneural injection of RCA-60 into the vagus nerve in the cervical region. The earliest signs of neuronal degeneration were evident in animals which survived 5 days after the ricin
Pathological effects of feeding roasted castor bean meal (Ricinus communis) to chicks.
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Castor bean cake was prepared from castor bean seeds roasted at 140 degrees C for 20 min and found free from ricin by chemical analysis. The cake was incorporated into diets at 0, 10, 15, 20 and 25% levels and fed to ducks for 6 weeks. Diarrhoea, emaciation and death were observed mainly at 20 and
Binding of Ricinus communis I lectin to the muscle cell plasma membrane in diseased muscle.
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Using an electron histochemical technique, we have observed the binding of a D-galactose-specific lectin to the muscle cell plasma membrane in muscle biopsies taken from patients with various neuromuscular disorders. In spinal muscular atrophy, the only neurogenic disease studied, the plasma
Neuroglial response to neuron injury. A study using intraneural injection of ricinus communis agglutinin-60.
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The present study has shown the selective destruction of large ventral horn neurons in the lumbosacral cord segments following a single injection of RCA-60 into the sciatic nerve. The neurons appeared to undergo structural alteration beginning 3 days after the RCA application. In the postoperative
Infiltration of carbon-labelled monocytes into the dorsal motor nucleus following an intraneural injection of ricinus communis agglutinin-60 into the vagus nerve in rats.
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A marked increase in the number of non-neuronal cells occurred in the neuropil of the ipsilateral dorsal motor nucleus (DMN) 6 days after an intraneural injection of Ricinus communis agglutinin-60 into the vagus nerve in the cervical region of rats. Other structural changes in the DMN were the
Selective neuronal destruction by Ricinus communis agglutinin I and its use for the quantitative determination of sciatic nerve dorsal root ganglion cell numbers.
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The selectivity of the neurotoxic lesion of Ricinus communis agglutinin I (RCAI) in rat dorsal root ganglia was examined. RCAI was injected in the sural nerve on one side. Two weeks later, the injected nerve, as well as the ipsilateral peroneal nerve, were examined in 1-micron-thick plastic embedded
Francisella tularensis: No Evidence for Transovarial Transmission in the Tularemia Tick Vectors Dermacentor reticulatus and Ixodes ricinus.
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BACKGROUND
Tularemia is a zoonosis caused by the Francisella tularensis, a highly infectious Gram-negative coccobacillus. Due to easy dissemination, multiple routes of infection, high environmental contamination and morbidity and mortality rates, Francisella is considered a potential bioterrorism
A molecular marker for the identification of the zoonotic reservoirs of Lyme borreliosis by analysis of the blood meal in its European vector Ixodes ricinus.
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The efficacy of the mitochondrially encoded cytochrome b gene as a molecular marker for the discrimination of the reservoir host species of the Lyme borreliosis spirochete, Borrelia burgdorferi sensu lato (s.l.), in its European vector Ixodes ricinus (Acari: Ixodidae) was determined. Degenerate PCR
Effects of intraneural injection of Ricinus communis agglutinin-60 into rat vagus nerve.
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The dorsal motor nucleus (DMN) of the rat was studied at various survival periods following an intraneural injection of Ricinus communis agglutinin-60 (RCA-60) into the vagus nerve at the mid-cervical region. No obvious structural changes were noted in the DMN 2 and 4 days after the injection of
Morphological anomalies in Ixodes ricinus and Ixodes inopinatus collected from tick-borne encephalitis natural foci in Central Europe.
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In 2015, 0.02% nymphs displayed anomalies (ectromely) out of the 6744 collected ticks as part of a tick-borne encephalitis program in Germany. In 2016, questing Ixodes ricinus (n = 14,527) and Ixodes inopinatus (n = 75) ticks were collected by flagging as part of a tick-borne encephalitis program in
Gross morphological changes in the salivary glands of Ixodes ricinus (Acari, Ixodidae) between bloodmeals in relation to active uptake of atmospheric water vapour.
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The gross morphological changes in the salivary glands of Ixodes ricinus (L.) were investigated at the light microscopic level in various phases off the host with emphasis on the engorged nymph, in order to relate the capability of active vapour uptake in the course of postembryonal development to
Effects of Ricinus communis oil esters on salivary glands of Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae).
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This study showed the interference of esters extracted from Ricinus communis in the secretory cycle of salivary glands of Rhipicephalus sanguineus ticks, which consequently caused collateral effects on their feeding process. Ticks attached on hosts which were fed with commercial feed containing
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