ASSOCIATION OF NICOTINIC ACETYLCHOLINE RECEPTORS WITH CENTRAL RESPIRATORY CONTROL IN ISOLATED BRAINSTEM-SPINAL CORD PREPARATION OF NEONATAL RATS

Association of nicotinic acetylcholine receptors with central respiratory control in isolated brainstem-spinal cord preparation of neonatal rats

Nicotine exposure is a risk factor in several breathing disorders Nicotinic acetylcholine receptors (nAChRs) exist in the ventrolateral medulla, an important site for respiratory control.We examined the effects of nicotinic acetylcholine neurotransmission on central respiratory control by addition of a nAChR agonist or one of various antagonists in

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A New Clue for the Late Eocene Freshwater Ecosystem of Central China Evidenced by New Fossils of Trapa L. and Hemitrapa Miki (Lythraceae)

Both Trapa L.and the extinct Hemitrapa Miki are aquatic plants in the family Lythraceae, with abundant fossil records in Eurasia and North America in the Cenozoic.However, documented materials are mainly based on fruit and pollen grains without reliable leaf fossils.Here, we report fossil leaves, fruit, and roots of Trapa and fruit of Hemitrapa fro

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