Preprints (not yet peer-reviewed)

32 downloads
95 views

Sclerochronology is presented as an approach to reconstruct, from linear growth records, environmental conditions. This was proposed by analogy with dendrochronology, but shells differ from trees since shells increase in size by terminal, instead of radial, growth....

["Developmental Biology","Ecology","Evolutionary Studies","Mathematical Biology","Environmental Impacts"]
doi:10.7287/peerj.preprints.26827v1
23 downloads
68 views

The results in this paper demonstrate that Ishikawa endometrial monolayer cells become multinucleated by a process of nuclear “donation” from neighboring cells. As the resulting polyploid cell detaches from the colony in which it was formed, it is possible to detect...

["Cell Biology","Developmental Biology","Histology"]
doi:10.7287/peerj.preprints.26793v1
44 downloads
124 views

Blue crabs, Callinectes sapidus Rathbun, 1896, are ubiquitous along the Atlantic and Gulf coasts of the United States. These organisms play an integral role in the ecosystems of the Gulf of Mexico (GOM), where not only are they a keystone species, but are also...

["Developmental Biology","Marine Biology","Toxicology","Ecotoxicology","Environmental Impacts"]
doi:10.7287/peerj.preprints.26750v1
26 downloads
76 views

Most marine crustacean eggs contain a full complement of nutritional resources that fuel the growth and metabolic processes over the course of their development. In terms of biochemical constituents, lipids and proteins play pivotal and central roles in these processes...

["Aquaculture, Fisheries and Fish Science","Biochemistry","Developmental Biology","Zoology"]
doi:10.7287/peerj.preprints.26741v1
160 downloads
495 views

The capacity for language is one of the key features underlying the complexity of human cognition and its evolution. However, little is known about the neurobiological mechanisms that mediate normal or impaired linguistic ability. For developmental dyslexia, early...

["Developmental Biology","Genetics","Neuroscience","Anatomy and Physiology","Cognitive Disorders"]
doi:10.7287/peerj.preprints.26637v1
38 downloads
84 views

Swimming activity of the sea urchin larva depends on ciliary beating primarily in the circumoral ciliary band (CB) and is regulated by several neurotransmitters, such as 5HT, dopamine and -aminobutyric acid (GABA). Accordingly, the larval swimming activity is severely...

["Cell Biology","Developmental Biology","Evolutionary Studies","Neuroscience","Zoology"]
doi:10.7287/peerj.preprints.26625v1
56 downloads
150 views

There are two basic forms of animal development: mosaic (as found in roundworms and sea squirts) and regulative (as found in amphibians and mammals). How might one distinguish between each type of development? Using a four-dimensional spatial representation (x,y,z,t),...

["Bioinformatics","Computational Biology","Developmental Biology"]
doi:10.7287/peerj.preprints.26587v1
53 downloads
133 views

Development of the adult ascidian tunicate starts when the tadpole larvae attaches to a surface. In approximately two days the solid tadpole will metamorphose into two joined concentric hollow cylinders. The outer cylinder is the body and the inner cylinder is...

["Biophysics","Developmental Biology","Marine Biology","Zoology"]
doi:10.7287/peerj.preprints.26556v1
151 downloads
352 views

Lesion of the dopaminergic neurons of the nigrostriatal system is a key feature of Parkinson's disease (PD). Alpha-synuclein is a protein that is a major component of Lewy bodies, histopathological hallmarks of PD, and is involved in regulation of dopamine (DA)...

["Developmental Biology","Neuroscience","Neurology","Pathology"]
doi:10.7287/peerj.preprints.26547v1
69 downloads
86 views

In vertebrates, it has been argued that the development and evolution of an enlarged brain requires an increased basal metabolic rate or a compensatory reduction in the resources devoted to the formation of other metabolically costly tissues, leading to a reduction...

["Anthropology","Developmental Biology","Evolutionary Studies"]
doi:10.7287/peerj.preprints.26543v1
123 downloads
308 views

Background. The sustainable methods of propagation for Typha domingensis through somatic embryogenesis can help to mitigate its current condition of ecological marginalisation and overexploitation. Then, the hypothesis established that the variation of the concentration...

["Biotechnology","Developmental Biology","Plant Science","Histology","Freshwater Biology"]
doi:10.7287/peerj.preprints.26459v1
80 downloads
185 views

Parkinson’s disease is a widespread condition caused by degeneration of dopamine neurons in the midbrain. A number of proteins are known to be important to signalling mechanisms present in the midbrain during natural dopamine neuron development, and may be utilised...

["Bioinformatics","Developmental Biology","Neuroscience"]
doi:10.7287/peerj.preprints.26443v2
36 downloads
188 views

Purpose: This study was performed to investigate the expression pattern of Wnt inhibitory factor 1 (Wif1) during anorectal development in normal and anorectal malformation (ARM) embryos and the possible role of Wif1 in the pathogenesis of ARM. Methods: ARM was...

["Developmental Biology","Gastroenterology and Hepatology","Pediatrics"]
doi:10.7287/peerj.preprints.3459v1
197 downloads
311 views

The discovery of induced pluripotent stem cells (iPSCs) by Shinya Yamanaka in 2006 was heralded as a major breakthrough of the decade in stem cell research. The ability to reprogrammed human somatic cells to a pluripotent embryonic stem cell-like state through...

["Cell Biology","Developmental Biology","Genetics"]
doi:10.7287/peerj.preprints.3374v1
54 downloads
207 views

Although comparative studies of anuran ontogeny have provided new data on heterochrony in the life cycles of frogs, most of them have not included Colombian species. Using different staining techniques, we describe the cranial and poscranial elements development...

["Biodiversity","Developmental Biology","Evolutionary Studies","Taxonomy","Zoology"]
doi:10.7287/peerj.preprints.3368v1
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