scholarly journals Autochthonous probiotic mixture improves biometrical parameters of larvae of Piaractus mesopotamicus (Caracidae, Characiforme, Teleostei)

2018 ◽  
Vol 48 (7) ◽  
Author(s):  
Marcos Gabriel Guidoli ◽  
Jorge Arnaldo Mendoza ◽  
Sofia Lizardo Falcón ◽  
Silvia Irene Boehringer ◽  
Sebastián Sánchez ◽  
...  
Keyword(s):  
Growth Factors ◽  
Fish Species ◽  
Native Fish ◽  
Feeding Period ◽  
Exogenous Feeding ◽  
Growth And Survival ◽  
Piaractus Mesopotamicus ◽  
Egg Incubation ◽  
Probiotic Product

ABSTRACT: Probiotics are a novel alternative to antibiotics as growth factors. Previously, our group isolated, selected and tested in vivo, eight autochthonous strains. They showed no significant effects when administered individually. However, the best doses, stages and ways of administration were combined in a multi strain formula. The aim of this research was to evaluate the effect of this probiotic product on the growth and survival of Piaractus mesopotamicus larvae. The administration was implemented during egg incubation and endogenous feeding period (5), during larvae exogenous feeding period (10) and all along the experiment (15). A group without microorganisms was used as control. The probiotic generates significant increments of mean weight and not significant increases of survival and biomass in two of the three tested stages. These results demonstrate the effectiveness of an autochthonous probiotic formula for the culture of this native fish species.

scholarly journals In vivo growth of a bioengineered internal anal sphincter: comparison of growth factors for optimization of growth and survival

2010 ◽  
Vol 27 (2) ◽  
pp. 137-143 ◽  
Author(s):  
Eiichi A. Miyasaka ◽  
Shreya Raghavan ◽  
Robert R. Gilmont ◽  
Krittika Mittal ◽  
Sita Somara ◽  
...  
Keyword(s):  
Growth Factors ◽  
Anal Sphincter ◽  
Internal Anal Sphincter ◽  
Growth And Survival ◽  
In Vivo Growth

scholarly journals Growth Factor Therapy for Parkinson’s Disease: Alternative Delivery Systems

2021 ◽  
pp. 1-7
Author(s):  
Sarah Jarrin ◽  
Abrar Hakami ◽  
Ben Newland ◽  
Eilís Dowd
Keyword(s):  
Parkinson’S Disease ◽  
Gene Therapy ◽  
Parkinson's Disease ◽  
Growth Factors ◽  
Growth Factor ◽  
Ex Vivo ◽  
Brain Regions ◽  
Delivery Systems ◽  
Alternative Delivery

Despite decades of research and billions in global investment, there remains no preventative or curative treatment for any neurodegenerative condition, including Parkinson’s disease (PD). Arguably, the most promising approach for neuroprotection and neurorestoration in PD is using growth factors which can promote the growth and survival of degenerating neurons. However, although neurotrophin therapy may seem like the ideal approach for neurodegenerative disease, the use of growth factors as drugs presents major challenges because of their protein structure which creates serious hurdles related to accessing the brain and specific targeting of affected brain regions. To address these challenges, several different delivery systems have been developed, and two major approaches—direct infusion of the growth factor protein into the target brain region and in vivo gene therapy—have progressed to clinical trials in patients with PD. In addition to these clinically evaluated approaches, a range of other delivery methods are in various degrees of development, each with their own unique potential. This review will give a short overview of some of these alternative delivery systems, with a focus on ex vivo gene therapy and biomaterial-aided protein and gene delivery, and will provide some perspectives on their potential for clinical development and translation.

scholarly journals Advancing improvement in riverine water quality caused a non-native fish species invasion and native fish fauna recovery

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Łukasz Głowacki ◽  
Andrzej Kruk ◽  
Tadeusz Penczak
Keyword(s):  
Water Quality ◽  
Fish Species ◽  
Native Species ◽  
Interference Competition ◽  
Fish Fauna ◽  
Species Traits ◽  
Native Fish ◽  
Biological Degradation ◽  
Species Invasion ◽  
Prussian Carp

AbstractThe knowledge of biotic and abiotic drivers that put non-native invasive fishes at a disadvantage to native ones is necessary for suppressing invasions, but the knowledge is scarce, particularly when abiotic changes are fast. In this study, we increased this knowledge by an analysis of the biomass of most harmful Prussian carp Carassius gibelio in a river reviving from biological degradation. The species' invasion followed by the invasion's reversal occurred over only two decades and were documented by frequent monitoring of fish biomass and water quality. An initial moderate improvement in water quality was an environmental filter that enabled Prussian carp’s invasion but prevented the expansion of other species. A later substantial improvement stimulated native species’ colonization of the river, and made one rheophil, ide Leuciscus idus, a significant Prussian carp’s replacer. The redundancy analysis (RDA) of the dependence of changes in the biomass of fish species on water quality factors indicated that Prussian carp and ide responded in a significantly opposite way to changes in water quality in the river over the study period. However, the dependence of Prussian carp biomass on ide biomass, as indicated by regression analysis and analysis of species traits, suggests that the ecomorphological similarity of both species might have produced interference competition that contributed to Prussian carp’s decline.

scholarly journals Effect of Processing on Fish Protein Antigenicity and Allergenicity

Foods ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 969
Author(s):  
Xingyi Jiang ◽  
Qinchun Rao
Keyword(s):  
Fish Species ◽  
Protein Denaturation ◽  
Ex Vivo ◽  
Protein Solubility ◽  
Future Research ◽  
Food Protein ◽  
In Vivo Evaluation ◽  
Fish Allergy

Fish allergy is a life-long food allergy whose prevalence is affected by many demographic factors. Currently, there is no cure for fish allergy, which can only be managed by strict avoidance of fish in the diet. According to the WHO/IUIS Allergen Nomenclature Sub-Committee, 12 fish proteins are recognized as allergens. Different processing (thermal and non-thermal) techniques are applied to fish and fishery products to reduce microorganisms, extend shelf life, and alter organoleptic/nutritional properties. In this concise review, the development of a consistent terminology for studying food protein immunogenicity, antigenicity, and allergenicity is proposed. It also summarizes that food processing may lead to a decrease, no change, or even increase in fish antigenicity and allergenicity due to the change of protein solubility, protein denaturation, and the modification of linear or conformational epitopes. Recent studies investigated the effect of processing on fish antigenicity/allergenicity and were mainly conducted on commonly consumed fish species and major fish allergens using in vitro methods. Future research areas such as novel fish species/allergens and ex vivo/in vivo evaluation methods would convey a comprehensive view of the relationship between processing and fish allergy.

Developmental stages, incubation temperature, and in vivo traceability of primordial germ cell in an important aquaculture species Piaractus mesopotamicus

Aquaculture ◽  
2021 ◽  
Vol 535 ◽  
pp. 736381
Author(s):  
Geovanna Carla Zacheo Coelho ◽  
Dilberto Ribeiro Arashiro ◽  
Tamiris Disselli ◽  
Matheus Pereira-Santos ◽  
Tatiana María Mira-López ◽  
...  
Keyword(s):  
Germ Cell ◽  
Developmental Stages ◽  
Incubation Temperature ◽  
Primordial Germ Cell ◽  
Piaractus Mesopotamicus

scholarly journals Acidic and basic fibroblast growth factors stimulate tyrosine kinase activity in vivo.

1988 ◽  
Vol 263 (2) ◽  
pp. 988-993 ◽  
Author(s):  
S R Coughlin ◽  
P J Barr ◽  
L S Cousens ◽  
L J Fretto ◽  
L T Williams
Keyword(s):  
Growth Factors ◽  
Tyrosine Kinase ◽  
Kinase Activity ◽  
Fibroblast Growth Factors ◽  
Fibroblast Growth ◽  
Tyrosine Kinase Activity

scholarly journals Digestible energy of crude glycerol for pacu and silver catfish

2014 ◽  
Vol 44 (8) ◽  
pp. 1448-1451 ◽  
Author(s):  
Rafael Ernesto Balen ◽  
Patrick Nereu Tetu ◽  
Robie Allan Bombardelli ◽  
Paulo Cesar Pozza ◽  
Fábio Meurer
Keyword(s):  
Fish Species ◽  
Crude Glycerol ◽  
Energy Content ◽  
Biodiesel Production ◽  
Native Fish ◽  
Neotropical Fish ◽  
Digestible Energy ◽  
Silver Catfish ◽  
Glycerol Utilization ◽  
Good Potential

The increase in global biodiesel production is originating a glycerol surplus, which has no defined destination. An alternative to overcome this problem is its use as energy source in animal feeding. In Brazil, Pacu (Piaractus mesopotamicus) is one of the most farmed native fish species, whereas Silver catfish (Rhamdia quelen) is suitable for production in subtropical region. Considering little knowledge about crude glycerol utilization in feeds for Neotropical fish species, it was evaluated the apparent digestibility coefficients (ADCs) for energy of crude glycerol for P. mesopotamicus and R. quelen. The digestibility and digestible energy content of crude glycerol can be considered excellent even when compared to energy of common ingredients such as maize and wheat, presenting 0.97 and 0.89 of energy ADCs, and 15.2 and 13.95MJ kg-1 of digestible energy for Pacu and Silver catfish, respectively. In conclusion, crude glycerol is an energetic ingredient with good potential in Brazilian native fish diets.

Expression of Growth Factors in Canine Flexor Tendon After Laceration in Vivo

2004 ◽  
Vol 53 (4) ◽  
pp. 393-397 ◽  
Author(s):  
Tetsu Tsubone ◽  
Steven L. Moran ◽  
Peter C. Amadio ◽  
Chunfeng Zhao ◽  
Kai-Nan An
Keyword(s):  
Growth Factors ◽  
Flexor Tendon

Developmental programmes of growth and survival in early sensory neurons

1991 ◽  
Vol 331 (1261) ◽  
pp. 259-262
Keyword(s):  
Nervous System ◽  
Sensory Neurons ◽  
Neurotrophic Factor ◽  
Target Distance ◽  
Trophic Factor ◽  
Growth And Survival ◽  
Target Field ◽  
Developing Nervous System

In the developing vertebrate nervous system the survival of neurons becomes dependent on the supply of a neurotrophic factor from their targets when their axons reach these targets. To determine how the onset of neurotrophic factor dependency is coordinated with the arrival of axons in the target field, we have studied the growth and survival of four populations of cranial sensory neurons whose axons have markedly different distances to grow to reach their targets. Axonal growth rate both in vivo and in vitro is related to target distance; neurons with more distant targets grow faster. The onset trophic factor dependency in culture is also related to target distance; neurons with more distant targets survive longer before becoming trophic factor dependent. These data suggest that programmes of growth and survival in early neurons play an important role in coordinating the timing of trophic interactions in the developing nervous system.

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