Spatial, sexual, and rapid temporal differentiation in neuromast expression on lateral plates of Haida Gwaii threespine stickleback (Gasterosteus aculeatus)

We examined numbers of superficial neuromasts on the buttressing lateral plates (LP) of 1910 threespine stickleback (Gasterosteus aculeatus Linnaeus, 1758) from 26 ecologically and morphologically diverse populations on the Haida Gwaii archipelago, western Canada. Extending from previous studies, we predicted that (i) highly stained dystrophic localities would have threespine stickleback with elevated numbers of neuromasts per plate due to a greater reliance on non-visual sensory modalities and (ii) that LP count and neuromast numbers per plate would functionally covary with predatory assemblage. We found that there were no differences in neuromast count across major habitats (marine, lake, stream), but clear-water populations and those with predatory fish had significantly more neuromasts per plate than most populations in highly stained dystrophic lakes, the effects being accentuated on the first buttressing plate (LP4). We also report the first evidence that neuromast counts per plate are sexually dimorphic, with males having a greater density of neuromasts in most populations. Two transplant experiments between ecologically opposite habitats indicate that within 12 generations, neuromast counts per plate can rapidly shift in response to a change in habitat.
Source: Canadian Journal of Zoology - Category: Zoology Authors: Source Type: research

Related Links:

(The Society of Thoracic Surgeons) Legendary heart-lung transplant surgeon, researcher, and professor Sir Magdi Habib Yacoub, MD, today was honored with the 2020 Earl Bakken Scientific Achievement Award from The Society of Thoracic Surgeons.
Source: EurekAlert! - Medicine and Health - Category: International Medicine & Public Health Source Type: news
UCLA researchers are part of an international team that reported the use of a stem cell gene therapy to treat nine people with the rare, inherited blood disease known as X-linked chronic granulomatous disease, or X-CGD. Six of those patients are now in remission and have stopped other treatments. Before now, people with X-CGD – which causes recurrent infections, prolonged hospitalizations for treatment, and a shortened lifespan – had to rely on bone marrow donations for a chance at remission.“With this gene therapy, you can use a patient’s own stem cells instead of donor cells for a transplant,&rdqu...
Source: UCLA Newsroom: Health Sciences - Category: Universities & Medical Training Source Type: news
You could say that one reason we can make simple decisions each day with relative ease is that we only have a handful of options to choose from, and that makes it easier to make a reasonably good choice. For instance, if you only have so much food in your home, or so many stores and restaurants within reach, then you may find it easier to decide what to eat each day. You don’t have to consider infinite options. You narrow your focus to what’s most accessible. But what about making bigger life choices, like what career path to explore next? This is a situation where you may feel like you’re drowning ...
Source: Steve Pavlina's Personal Development Blog - Category: Psychiatry & Psychology Authors: Tags: Creating Reality Lifestyle Source Type: blogs
Contributors : Daniel Baumann ; Rienk OffringaSeries Type : Expression profiling by arrayOrganism : Mus musculusCancer types with lower mutational load and a non-permissive tumor microenvironment are intrinsically resistant to immune checkpoint blockade. While the combination of cytostatic drugs and immunostimulatory antibodies constitutes an attractive concept for overcoming this refractoriness, suppression of immune cell function by cytostatic drugs may limit therapeutic efficacy. Here we show that targeted inhibition of mitogen-activated protein kinase (MAPK) kinase (MEK) does not impair dendritic cell-mediated T-cell p...
Source: GEO: Gene Expression Omnibus - Category: Genetics & Stem Cells Tags: Expression profiling by array Mus musculus Source Type: research
Authors: Pastor-Galán I, Hernández-Boluda JC, Correa JG, Alvarez-Larrán A, Ferrer-Marín F, Raya JM, Ayala R, Velez P, Pérez-Encinas M, Estrada N, García-Gutiérrez V, Fox ML, Payer A, Kerguelen A, Cuevas B, Durán MA, Ramírez MJ, Gómez-Casares MT, Mata-Vázquez MI, Mora E, Martínez-Valverde C, Arbelo E, Angona A, Magro E, Antelo ML, Somolinos N, Cervantes F, en representación del Grupo Español de Enfermedades Mieloproliferativas Filadelfia Negativas (GEMFIN) Abstract BACKGROUND AND OBJECTIVE MYELOFIBROSIS: is an infrequen...
Source: Medicina Clinica - Category: General Medicine Tags: Med Clin (Barc) Source Type: research
Host Kevin Patton discusses issues caused by our expectations of anatomy&physiology course prerequisites and answers the question: which prerequisites work best? Recent reports of a bone-marrow recipient with donor DNA in his semen prompts a brief review of what happened. Wi-Fi fields can produce biological effects. What are they and how does Wi-Fi produce them?00:46 | Bone Marrow Genome07:45 | Sponsored by AAA08:27 | Watch Out for Wi-Fi15:19 | Sponsored by ADInstruments16:23 | Prereqs: The Perrennial Conversation25:03 | Sponsored by HAPI25:50 |  Prereqs: The Good News31:55 | Sponsored by HAPS3...
Source: The A and P Professor - Category: Physiology Authors: Source Type: blogs
AbstractSpontaneous native kidney rupture (SNKR) is a rare occurrence, commonly associated with underlying renal tumors or acquired renal cystic disease in both the kidney transplant (KT) and non-KT populations. Herein, we present a 65-year-old African American man who experienced a non-malignant SNKR 6  days after a deceased donor KT and underwent emergent native nephrectomy. The patient’s hospital course was complicated by thrombocytopenia and refractory hypertension. He experienced delayed graft function and was maintained on hemodialysis until post-operative day 30. This case demonstrates an unusual presenta...
Source: CEN Case Reports - Category: Urology & Nephrology Source Type: research
Conclusion Though certainly not an exhaustive investigation into each institution's preference, we present a representative sampling. The results of which favor VCA as an accepted clinical procedure given the appropriate setting. Further research is needed to fully ascertain practices at each individual institution. [...] Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.Article in Thieme eJournals: Table of contents  |  Abstract  |  Full text
Source: Journal of Reconstructive Microsurgery - Category: Surgery Authors: Tags: Original Article Source Type: research
Decrease in regulatory T cell (Tregs) has been linked to GVHD after alloHCT. The use of daratumumab poses a theoretical concern for GVHD flare because of its effects on Tregs and helper and cytotoxic T cells. In this multicenter, retrospective study of relapsed multiple myeloma patients, who received daratumumab after alloHCT, we demonstrate low incidence of GVHD after daratumumab treatment.
Source: Clinical Lymphoma, Myeloma and Leukemia - Category: Hematology Authors: Tags: Original Study Source Type: research
This study suggested that a lower dose-intensity of thiotepa and busulfan (5 mg/kg thiotepa and 2 days of iv busulfan at 6.4 mg/kg (T1B2F) in the TBF regimen may yield better outcomes.
Source: Clinical Lymphoma, Myeloma and Leukemia - Category: Hematology Authors: Tags: Original Study Source Type: research
More News: Brain | Canada Health | Fish | Neurology | Study | Transplants | Zoology