scholarly journals Dynamic Interaction Between Mucosal Immunity and Microbiota Drives Nose and Pharynx Homeostasis of Common Carp (Cyprinus carpio) After SVCV Infection

2021 ◽  
Vol 12 ◽  
Author(s):  
Zheng-Ben Wu ◽  
Kai-Feng Meng ◽  
Li-Guo Ding ◽  
Sha Wu ◽  
Guang-Kun Han ◽  
...  
Keyword(s):  
Bacterial Infection ◽  
Viral Infection ◽  
Common Carp ◽  
Cyprinus Carpio ◽  
Mucosal Immunity ◽  
Dynamic Interaction ◽  
Control Group ◽  
Rrna Gene ◽  
Upper Respiratory Tract ◽  
Pathogen Invasion

The crosstalk between the immune system and microbiota drives an amazingly complex mutualistic symbiosis. In mammals, the upper respiratory tract acts as a gateway for pathogen invasion, and the dynamic interaction between microbiota and mucosal immunity on its surface can effectively prevent disease development. However, the relationship between virus-mediated mucosal immune responses and microbes in lower vertebrates remains uncharacterized. In this study, we successfully constructed an infection model by intraperitoneally injecting common carp (Cyprinus carpio) with spring viremia of carp virus (SVCV). In addition to the detection of the SVCV in the nose and pharynx of common carp, we also identified obvious histopathological changes following viral infection. Moreover, numerous immune-related genes were significantly upregulated in the nose and pharynx at the peak of SVCV infection, after which the expression levels decreased to levels similar to those of the control group. Transcriptome sequencing results revealed that pathways associated with bacterial infection in the Toll-like receptor pathway and the Nod-like receptor pathway were activated in addition to the virus-related Rig-I-like receptor pathway after SVCV infection, suggesting that viral infection may be followed by opportunistic bacterial infection in these mucosal tissues. Using 16S rRNA gene sequencing, we further identified an upward trend in pathogenic bacteria on the mucosal surface of the nose and pharynx 4 days after SVCV infection, after which these tissues eventually reached new homeostasis. Taken together, our results suggest that the dynamic interaction between mucosal immunity and microbiota promotes the host to a new ecological state.

Enrichment of common carp (Cyprinus carpio) diet with Malic acid: Effects on skin mucosal immunity, antioxidant defecne and growth performance

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Roghieh Safari ◽  
Seyed Hossein Hoseinifar ◽  
Maryam Dadar ◽  
Hien Van Doan
Keyword(s):  
Common Carp ◽  
Cyprinus Carpio ◽  
Malic Acid ◽  
Control Group ◽  
Skin Mucus ◽  
Antioxidant Genes ◽  
Treatment Comparison ◽  
Genes Expression ◽  
Significant Difference ◽  
And Control

AbstractThe present study investigated possible effects of dietary malic acid on the expression of immunity, antioxidant and growth related genes expression as well as skin mucus immune parameters in common carp. Common carp (Cyprinus carpio) fingerlings were fed diets supplemented with different levels (0 [control], 0.5%, 1%, 2%) of malic acid (MA) for 60 days. The results revealed highest expression levels of immune-related genes (tnf-alpha, il1b, il8 and lyz) in skin of common carp fed 2% MA (P < 0.05). Regarding 1% MA treatment comparison with control group, significant difference was noticed just in case of lyz (P < 0.05). Evaluation of growth related genes expression revealed no significant difference between treatments (P > 0.05). The study of antioxidant related genes (gsta and gpx) in common carp skin fed with MA, showed significant difference between treated groups and control (P < 0.05). Carps fed with 2% MA had highest alkaline phosphatase activity in skin mucus compared other treated groups and control (P < 0.05). There were no significant difference between 0.5% and 1% and control (P > 0.05). The study of total protein and total immunoglobulin (Ig) in common carp skin musus revealed no alteration following MA treatment (P > 0.05). The present data demonstrated that feeding with MA altered immune and antioxidant genes expression in skin mucus of common carp.

scholarly journals Effects of a Trans-Galactooligosaccharide on Minerals Content of Common Carp (Cyprinus carpio L.) Tissues

2021 ◽  
Author(s):  
Ewa Ziółkowska ◽  
Joanna Bogucka ◽  
Jan Mazurkiewicz ◽  
Mateusz Rawski ◽  
Szymon Różański ◽  
...  
Keyword(s):  
Common Carp ◽  
Cyprinus Carpio ◽  
Control Diet ◽  
Colorimetric Method ◽  
Bifidobacterium Bifidum ◽  
Feed Additives ◽  
Control Treatment ◽  
Control Group ◽  
Whole Cells ◽  
Freeze Dried

AbstractCommon carp (Cyprinus carpio L.) is a dominant fish species in aquaculture, and as it is a stomachless species, absorption and digestion of nutrients take place in the intestine. The aim of the study was to evaluate the effects of a prebiotic on the content of selected minerals found in the meat, gills, and skeleton of common carp. The research applied trans-galactooligosaccharide (GOS) prebiotic produced by enzymatic transgalactosylation of milk lactose by whole cells of Bifidobacterium bifidum. The following diets have been applied: control diet without feed additives (C), diet 2 (B1) with 1% of GOS, and diet 3 (B2) with 2% of GOS. In the freeze-dried samples, concentrations of the analyzed metals were determined using atomic absorption spectroscopy (AAS). The content of phosphorus was determined using colorimetric method. The analyses confirmed that the highest level of Mg was detected in the skeleton of fish fed with 1% GOS (2.51 g kg−1) and was significantly higher compared the control treatment (2.11 g kg−1) (P < 0.05). Zn content in fish meat fed with 1% GOS (35.41 mg kg−1) was significantly higher (P < 0.05) than in the control group (24.59 mg kg−1). The tissue that accumulated the greatest amount of Zn was the gills. GOS had a positive effect on Fe accumulation in the meat, gills, and skeleton. It has been concluded that supplementation of feed with 2% GOS significantly influenced the positive correlations between Mg and P in the meat and skeleton, Fe–Ca correlation in gills, and Fe–Zn correlation in the skeleton.

scholarly journals Short- and long-term effects of amoxicillin/clavulanic acid or doxycycline on the gastrointestinal microbiome of growing cats

2021 ◽  
Author(s):  
Evangelia Stavroulaki ◽  
Jan S. Suchodolski ◽  
Rachel Pilla ◽  
Geoffrey T. Fosgate ◽  
Chi-Hsuan Sung ◽  
...  
Keyword(s):  
Clavulanic Acid ◽  
Antibiotic Treatment ◽  
Control Group ◽  
Rrna Gene ◽  
Upper Respiratory Tract ◽  
Long Term Effects ◽  
Microbial Composition ◽  
Increased Risk ◽  
Group 15 ◽  
Amoxicillin Clavulanic Acid

Antibiotic treatment in early life influences gastrointestinal (GI) microbial composition and function. In humans, the resultant intestinal dysbiosis is associated with an increased risk for certain diseases later in life. The objective of this study was to determine the temporal effects of antibiotic treatment on the GI microbiome of young cats. Fecal samples were collected from cats randomly allocated to receive either amoxicillin/clavulanic acid (20 mg/kg q12h) for 20 days (AMC group; 15 cats) or doxycycline (10 mg/kg q24h) for 28 days (DOX group;15 cats) as part of the standard treatment of upper respiratory tract infection. In addition, feces were collected from healthy control cats (CON group;15 cats). All cats were approximately two months of age at enrolment. Samples were collected on days 0 (baseline), 20 or 28 (AMC and DOX, respectively; last day of treatment), 60, 120, and 300. DNA was extracted and sequencing of the 16S rRNA gene and qPCR assays were performed. Fecal microbial composition was different on the last day of treatment for AMC cats, and 1 month after the end of antibiotic treatment for DOX cats, compared to CON cats. Species richness was significantly greater in DOX cats compared to CON cats on the last day of treatment. Abundance of Enterobacteriales was increased, and that of Erysipelotrichi was decreased in cats of the AMC group on the last day of treatment compared to CON cats. The abundance of the phylum Proteobacteria was increased in cats of the DOX group on days 60 and 120 compared to cats of the CON group. Only minor differences in abundances between the treatment groups and the control group were present on day 300. Both antibiotics appear to delay the developmental progression of the microbiome, and this effect is more profound during treatment with amoxicillin/clavulanic acid and one month after treatment with doxycycline. Future studies are required to determine if these changes influence microbiome function and whether they have possible effects on disease susceptibility in cats.

scholarly journals Effect of β-glucan on behavioral, biochemical and hematological parameters against toxicity of copper sulfate in common carp Cyprinus carpio L.

2014 ◽  
Vol 38 (2) ◽  
pp. 128-137
Author(s):  
Jamal K. Al-faragi,
Keyword(s):  
Common Carp ◽  
Copper Sulfate ◽  
Cyprinus Carpio ◽  
Hematological Parameters ◽  
Control Group ◽  
Enzymes Activity ◽  
Common Carp Cyprinus Carpio ◽  
Carp Cyprinus Carpio ◽  
Wbc Count ◽  
Hb Concentration

The aim of the present study was to assess the effect of a commercial ß-glucan against acute toxic effect of copper sulfate on common carp Cyprinus carpio L. behavioral, hematological parameters and biochemical tests. A total of 250 Fish (150 ± 2 g) were fed a basal control diet or the basal diet plus a ß-glucan (1 g kg-1 diet) for 60 days. LC50 was calculated for 72 h which was 10.83 mg L-1.  At the end of the trial, CuSO4.5H2O was added to all treatments  at a dose  of  5 mgL-1  for  T1  and  T2, 7mg L-1  for  T3  and  T4, 9  mgL-1 for T5  and  T6   for  96h. Fish behavioral changes were recorded during 96h of exposure to different Cu concentrations with and without β-glucan, which showed abnormalities such as increase swimming activity, jerky movement, loss of equilibrium, respiratory stress, increase operculum movement, frequent jumping, erratic swimming and swimming near the water surface. On the other hand, ß-glucan supplemented groups showed significant increase (P≤0.05) in Hb concentration, PCV%, RBC and WBC count in comparison with groups without ß-glucan. The results of dietary groups without ß-glucan showed a significant decrease (P≤ 0.05) in Hb concentration, hematocrit value, RBC count, but there were significant increase (P≤ 0.05) in WBC count with an increase of Cu concentration compared to control groups. Results showed significant increase (P≤ 0.05) in dietary groups without ß-glucan in values of ALT, AST and ALP enzymes activity with elevation of Cu levels compared to control group. But, ß-glucan supplemented groups showed significant decrease (P ≤ 0.05) in values of ALT, AST and ALP enzymes activity in comparison with dietary groups without ß-glucan. These results suggested that β-glucan has protective effect against CuSO4 toxicity and future studies should be pursued particularly immune response and molecular studies

scholarly journals Interactions Between Commensal Microbiota and Mucosal Immunity in Teleost Fish During Viral Infection With SVCV

2021 ◽  
Vol 12 ◽  
Author(s):  
Kai-Feng Meng ◽  
Li-Guo Ding ◽  
Sha Wu ◽  
Zheng-Ben Wu ◽  
Gao-Feng Cheng ◽  
...  
Keyword(s):  
Viral Infection ◽  
Common Carp ◽  
Buccal Mucosa ◽  
Morphological Changes ◽  
Immune Defense ◽  
Infection Model ◽  
Rrna Gene ◽  
Opportunistic Bacteria ◽  
Mucosal Tissues ◽  
Early Vertebrates

The mucosa of vertebrates is a particularly complex but dynamic environment in which the host constantly interacts with trillions of commensal microorganisms and pathogens. Although the internal and external mucosal microbiomes with immune defense of mammals have been well investigated, the relationship between mucosal microbes and their host’s immune responses has not been systematically understood in the early vertebrates. In this study, we compared the composition and distribution of mucosal microbiota in common carp (Cyprinus carpio), and found that there were significant differences of microbiota between in the internal (gut) and external mucosal (buccal mucosa, gills and skin) tissues. Next, we successfully constructed an infection model with spring viremia of carp virus (SVCV). Specifically, following viral infection, the immune and antiviral related genes showed different up-regulation in all selected mucosal tissues while significant morphological changes were only found in external tissues including buccal mucosa, gills and skin. Using 16S rRNA gene sequence, we revealed that the abundance of Proteobacteria in mucosal tissues including buccal mucosa, gills and gut showed increased trend after viral infection, whereas the abundance of Fusobacteria significantly decreased in gut. In addition, the loss of dominant commensal microorganisms and increased colonization of opportunistic bacteria were discovered in the mucosal surfaces indicating that a secondary bacterial infection might occur in these mucosal tissues after viral infection. Overall, our results firstly point out the distribution of internal and external mucosal microbiota and analyze the changes of mucosal microbiota in common carp after SVCV infection, which may indicated that the potential role of mucosal microbiota in the antiviral process in early vertebrates.

scholarly journals Extract of grape seed enhances the growth performance, humoral and mucosal immunity, and resistance of common carp (Cyprinus carpio) against Aeromonas hydrophila

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Zohre Mehrinakhi ◽  
Ehsan Ahmadifar ◽  
Najmeh Sheikhzadeh ◽  
Mohsen Shahriari Moghadam ◽  
Mahmoud A.O. Dawood
Keyword(s):  
Disease Resistance ◽  
Growth Performance ◽  
Common Carp ◽  
Cyprinus Carpio ◽  
Aeromonas Hydrophila ◽  
Hematological Parameters ◽  
Control Diet ◽  
Grape Seed ◽  
Control Group ◽  
Feed Conversion

AbstractThis study evaluated the effects of grape seed extract (GSE) on the growth performance, immune response, and disease resistance of common carp (Cyprinus carpio). Fish were distributed in four groups and fed diets with varying levels of GSE at 0, 10, 20, and 30 g/kg for 56 days. The final length in fish fed with 20 and 30 g GSE/kg diet significantly increased in comparison with the control group (P<0.05). The final weight and weight gain of fish fed with GSE were statistically higher than the control diet, while the feed conversion ratio was lower in GSE groups than the control. Hematological parameters did not statistically enhance with GSE supplemented diets (P>0.05). However, fish fed with 30 g GSE/kg diet displayed a higher WBC count significantly than the other group (P<0.05). The serum total protein and globulin in fish fed with 20 g GSE/kg diet significantly increased compared to the control (P<0.05). A similar pattern was noticed in results for serum and mucus lysozyme activity with a significant increase in fish fed with 20 and 30 g GSE/kg diet compared to the control (P<0.05). Total antibody levels in serum and mucus samples were also increased in fish by dietary GSE with maximum levels by 20 and 30 g GSE/kg diet. Besides, mucus protease activity was higher in fish received 20 and 30 g GSE/kg diet with maximum level shown in fish fed with 30 g GSE/kg diet compared to the control group (P<0.05). Meanwhile, all groups showed higher mucus antibacterial activity against Aeromonas hydrophila with the highest activity in 30 g GSE/kg diet in comparison with the control group. The cumulative mortality was 36.67% when fish fed with 30 g GSE/kg diet and challenged with A. hydrophila. However, the mortality rate was 40% and 53.33% in fish fed 20 and 30 g GSE/kg diet, respectively. This study suggests that supplementation of GSE could significantly enhance the growth performance, immune responses, and disease resistance against A. hydrophila in common carp.

scholarly journals Impact of Black Grape byproducts on Blood Picture in Common Carp (Cyprinus carpio L.)

2017 ◽  
Vol 30 (1) ◽  
pp. 32-37
Author(s):  
Pola J. Nader ◽  
Nasreen M. Abdulrahman
Keyword(s):  
Common Carp ◽  
Cyprinus Carpio ◽  
White Blood Cells ◽  
Diet Group ◽  
Control Group ◽  
Mean Corpuscular Hemoglobin ◽  
Fish Farms ◽  
Common Carp Cyprinus Carpio ◽  
Carp Cyprinus Carpio ◽  
Feeding Trials

This experiment was conducted for 70 days on 165 common carp Cyprinus carpio fingerlings which were brought from local fish farms located in Daqooq, Haftaghar, Al-Tameem province. Fishes were distributed among experimental tanks with mean initial weight of 24.09 gm. They were pre-acclimated to laboratory conditions for 21 days prior to the feeding trials. The experiment was conducted by using 15 plastic tanks (100 L) representing five treatments with three replicates. Each tank was stocked with 11 fishes. Treatments included 0, 2.5, 5.0, 7.5 or 10 gm grape byproduct/ kg diet. The result showed that red blood cell (RBC) data of the control group was significantly higher than other treatments. Hemoglobin of fishes in groups 2.5 and 10 gm/ kg diet was significantly different from other treatments. Mean corpuscular hemoglobin (MCH) values for 0.0, 5.0 and 10 gm/kg groups were significantly different, so mean corpuscular volume (MCV) values showed significant differences resulted from 0.0, 5.0, 7.5 and 10 gm/ kg diet compared to 2.5 gm/ kg diet group. The white blood cells (WBC) were significantly different in 2.5, 5.0 and 7.5 gm/ kg diet. Granulocyte percentages obtained in all treatments were significantly different from control. Lymphocyte percentages were significantly different in all treatments compared to 10 gm/ kg diet group. The Monocytes were significantly different in 2.5, 7.5 and 10 gm/ kg groups.

scholarly journals IMPACT OF MERCURY CHLORIDE EXPOSURE ON SOME OF IMMUNOLOGICAL AND BIOCHEMICAL ASSAYS OF COMMON CARP, CYPRINUS CARPIO

2021 ◽  
Vol 52 (3) ◽  
pp. 547-551
Author(s):  
S. A. Mustafa ◽  
A. J. Al-Rudainy
Keyword(s):  
Blood Glucose ◽  
Common Carp ◽  
Cyprinus Carpio ◽  
Lymphocyte Transformation ◽  
The Other ◽  
Control Group ◽  
Mercury Chloride ◽  
Common Carp Cyprinus Carpio ◽  
Biochemical Assays ◽  
Carp Cyprinus Carpio

This work was designed to evaluate the influence of mercury chloride on some of biochemical and immunological biomarkers in common cap, Cyprinus carpio. Around of 120 fish were randomly allocated into four groups (30 fish per group) in triplicates as follows; first group act as control group provided with water only without adding HgCl2;  G1, G2 and G3 were exposed to waterborne  HgCl2 at levels of  0.01, 0.05 and 0.1 mg l-1 respectively. After one month exposure to HgCl2, there were significantly decreased (P<0.05) in lymphocyte transformation index and in phagocytic and lysozyme activities. Besides, biochemically, Albumin and globulin content exhibited significantly declined (P<0.05) particularly at higher dose of HgCl2. In contrast, blood glucose value and urea showed significantly increased (P<0.05) especially in G3. On the other hand, variable changes were observed in total count of leucocytes included lymphopenia and neutrophilia in G1 and G2 compared to control.  In conclusion, this investigation indicated that mercury chloride has immune suppressive effects and is extremely toxic to common carp.

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