Browse Items · NEOMED Bibliography Database

Two components of long-term potentiation induced by different patterns of afferent activation.

Long-term potentiation (LTP) of excitatory synaptic transmission could be a mechanism underlying memory. Induction of LTP requires Ca2+ influx into postsynaptic neurons through ion channels gated by NMDA (N-methyl-D-aspartate) receptors in…

Tags: 1990, 2-Amino-5-phosphonovalerate/*pharmacology, Afferent Pathways/physiology, Animals, Calcium/*physiology, Grover L M, Hippocampus/*physiology, In Vitro Techniques, Membrane Potentials, Memory/*physiology, N-Methyl-D-Aspartate/*physiology, Nature, Neuronal Plasticity, Receptors, Synaptic Transmission, Teyler T J, Time Factors

Skeletons of terrestrial cetaceans and the relationship of whales to artiodactyls.

Modern members of the mammalian order Cetacea (whales, dolphins and porpoises) are obligate aquatic swimmers that are highly distinctive in morphology, lacking hair and hind limbs, and having flippers, flukes, and a streamlined body. Eocene fossils…

Tags: *Biological Evolution, *Fossils, 2001, Animals, Bone and Bones/*anatomy & histology, Cetacea/anatomy & histology/*classification, Department of Anatomy & Neurobiology, Hussain S T, Nature, NEOMED College of Medicine, Phylogeny, Roe L J, Skeleton, Thewissen J G, Whales/anatomy & histology/*classification, Williams E M

Eocene evolution of whale hearing.

The origin of whales (order Cetacea) is one of the best-documented examples of macroevolutionary change in vertebrates. As the earliest whales became obligately marine, all of their organ systems adapted to the new environment. The fossil record…

Whales originated from aquatic artiodactyls in the Eocene epoch of India.

Although the first ten million years of whale evolution are documented by a remarkable series of fossil skeletons, the link to the ancestor of cetaceans has been missing. It was known that whales are related to even-toed ungulates (artiodactyls), but…

Sanger's legacy stirs up digital chatter.

The article presents a microblog post on the website Twitter from François Gould, a palaeontologist at Northeast Ohio Medical University, related to current research grants criteria and biochemist Fred Sanger.

Tags: 1918-2013, 2014, Francois, Frederick, GOULD, MICROBLOGS, Nature, SANGER, Woolston Chris

Palaeontological evidence for an Oligocene divergence between Old World monkeys and apes.

Apes and Old World monkeys are prominent components of modern African and Asian ecosystems, yet the earliest phases of their evolutionary history have remained largely undocumented. The absence of crown catarrhine fossils older than ∼20 million years…

A nuclear-receptor-dependent phosphatidylcholine pathway with antidiabetic effects.

Nuclear hormone receptors regulate diverse metabolic pathways and the orphan nuclear receptor LRH-1 (also known as NR5A2) regulates bile acid biosynthesis. Structural studies have identified phospholipids as potential LRH-1 ligands, but their…

Tags: 2011, BILE acids, Busby Scott A, Department of Integrative Medical Sciences, Griffin Patrick R, Homeostasis, HYPOGLYCEMIC agents, Insulin Resistance, LABORATORY mice, LECITHIN, Lee Jae Man, Lee Yoon-Kwang, Mamrosh Jennifer L, Moore David D, Nature, NEOMED College of Medicine, Ortlund Eric A, Pathak Manish C, triglycerides

S-glutathionylation uncouples eNOS and regulates its cellular and vascular function.

Endothelial nitric oxide synthase (eNOS) is critical in the regulation of vascular function, and can generate both nitric oxide (NO) and superoxide (O2•−), which are key mediators of cellular signalling. In the presence of Ca2+/calmodulin, eNOS…

The evolution of mammal-like crocodyliforms in the Cretaceous Period of Gondwana.

Fossil crocodyliforms discovered in recent years have revealed a level of morphological and ecological diversity not exhibited by extant members of the group. This diversity is particularly notable among taxa of the Cretaceous Period (144–65 million…

Thewissen et al. reply.

Replying to: J. H. Geisler & J. M. Theodor 458, 10.1038/nature07776 (2009)The analysis of Geisler and Theodor confirms our main phylogenetic result, that raoellids are, or include, the sister group to cetaceans. Their study expands on our findings by…

Tags: 2009, Bajpai Sunil, Clementz Mark T, Cooper Lisa Noelle, Department of Anatomy & Neurobiology, LETTERS to the editor, Nature, NEOMED College of Medicine, Thewissen J G M, Tiwari B N, WHALES

TREPONEMAL INFECTION IN A PLEISTOCENE BEAR

Tags: 1987, Journal Article, Nature, Rothschild B M, Science & Technology - Other Topics, Turnbull W

Vestibular evidence for the evolution of aquatic behaviour in early cetaceans

Early cetaceans evolved from terrestrial quadrupeds to obligate swimmers, a change that is traditionally studied by functional analysis of the postcranial skeleton(1). Here we assess the evolution of cetacean locomotor behaviour from an independent…

Tags: 2002, artiodactyls, Bajpal S, bony labyrinth, Feet, Hearing, Hussaim S T, inner-ear, Journal Article, Kumar K, locomotor evolution, model, Nature, origin, petrosal, Science & Technology - Other Topics, Spoor F, Thewissen J G M, WHALES

Evolution of cetacean osmoregulation

Tags: 1996, Bajpal S, Hussain S T, Journal Article, Nature, Oneil J R, Roe L J, Sahni A, Science & Technology - Other Topics, Thewissen J G M

Hippopotamus and whale phylogeny Reply

Tags: 2009, Bajpai S, Clementz M T, Cooper L N, Journal Article, Nature, Science & Technology - Other Topics, Thewissen J G M, Tiwari B N

Whale ankles and evolutionary relationships

Tags: 1998, Hussain S T, Journal Article, Madar S I, Nature, Science & Technology - Other Topics, Thewissen J G M

Evolutionary biology - Even-toed fingerprints on whale ancestry

Tags: 1997, cetaceans, Journal Article or Conference Abstract Publication, Milinkovitch M C, Nature, Phylogeny, Science & Technology - Other Topics, Thewissen J G M

Earliest Homo

THE origin of our own genus, Homo, has been tentatively correlated with worldwide climatic cooling documented at about 2.4 Myr (million years) (refs 1-5). It has also been conjectured that members of Homo made the first stone tools, currently dated…

Tags: 1992, baringo, calibration, Curtis G, Deino A, Drake R, east, fossil hominids, Hill A, Journal Article or Conference Abstract Publication, Kenya, Nature, Pliocene, region, Science & Technology - Other Topics, turkana, Ward S

Earliest Homo Debate - Reply

Tags: 1992, Curtis G, Deino A, Drake R, Hill A, Journal Article or Conference Abstract Publication, Nature, Science & Technology - Other Topics, Ward S

Browse Items (18 total)