Natural serum haemagglutinins (lectins) in fish: Physicochemical characterisation

Dash, Kalpana; Saha, Kunal; Sahu, Arvind; Gangal, S. V.

doi:10.1006/fsim.1993.1034

Cited by 4 publications

(4 citation statements)

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“…Many workers have studied the changes in non‐specific immune parameters of fish with relation to infection, toxicity, diet, stressors, temperature fluctuations or pollution (Ingram, 1980; Studnicka et al., 1986; Anderson, 1990; Anderson et al., 1992; Dalmo et al., 1997; Ellis, 2001). Nevertheless, just a few of these studies are related to Indian major carps (Dash et al., 1993; Saha et al., 1993; Sahoo and Mukherjee, 2001, 2002, 2003; Sahoo et al., 2004). Among the Indian major carp species, the non‐specific immune components remain unstudied for Cat.…”

Section: Discussionmentioning

confidence: 99%

“…A variation in HA titre from 32 to 512 has also been recorded in two catfish species, viz. Heteropneustes fossilis and Clarias batrachus at different seasons (Dash et al., 1993). Previous studies have also shown HA titre of 64 and HLY titre of eight in the sera of Cir.…”

Section: Discussionmentioning

confidence: 99%

“…Very little is known about the non‐specific defence activities of the three Indian major carp species (Dash et al., 1993; Saha et al., 1993; Sahoo and Mukherjee, 2001, 2003; Sahoo et al., 2004). The main objective of this work was to determine the normal physiological presence and ranges of different blood/serum non‐specific defence activities in juveniles of three Indian major carp species ( Cir.…”

Section: Introductionmentioning

confidence: 99%

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Non-specific immune responses in juveniles of Indian major carps

2005

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The non-specific immune parameters are useful to determine the health status of fish and to evaluate the immunomodulatory substances for fish farming as markers of pollution and disease resistance. Some of the important parameters, viz. superoxide production by neutrophils through nitroblue tetrazolium (NBT) assay; haemagglutination (HA), haemolysin (HLY) and bacterial agglutination titres; myeloperoxidase (MPO), and lysozyme activities, and alternative complement levels in serum of the juveniles of three Indian major carp species (Cirrhinus mrigala, Catla catla and Labeo rohita) were measured to establish their physiological normal range. A wide variation among the individuals within a species in the ranges of the most of the immune parameters was recorded. Significantly higher levels in the mean values of HA, HLY, bacterial agglutination titres; superoxide production by neutrophils in nitroblue tetrazolium assay; serum MPO and lysozyme activities, i.e. 371.20, 4.60, 18.80, 0.40, 0.62 and 6.55 lg ml )1 , respectively, were obtained in L. rohita except a much lower alternative haemolytic complement activity (29.06 units ml )1 ) compared with the other two species. In most of the parameters, L. rohita showed the highest value, possibly indicating its more natural resistance compared with the other two species.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Non-specific immune responses in juveniles of Indian major carps

2005

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“…Natural antibodies to sheep and rabbit erythrocytes have been observed in teleosts (Cushing & Durall 1957; Sindermann & Krantz 1968; Giclas, Morrison, Curry, Laurs & Ulevitch 1981). Recently, several teleost species have been found to possess haemagglutinins of a lectin‐like nature in their sera against homeothermic vertebrate erythrocytes (Dash, Saha, Sahu & Gangal 1993). Thus, the anti‐SRBC titre measured in the control group is most probably naturally occurring in the Atlantic salmon plasma.…”

Section: Discussionmentioning

confidence: 99%

Effects of rearing stress on Atlantic salmon (Salmo salarL.) antibody response to a non-pathogenic antigen

Einarsdóttir

Nilssen

Iversen

2000

Aquaculture Research

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This study was carried out to test the effects of acute stress on the primary and the secondary antibody responses in Atlantic salmon (Salmo salar L.). Fish received a primary immunization with sheep red blood cells (SRBC) and received a second immunization 11 weeks later. At priming, a group of fish was stressed by water level reduction for 30 min (moderate stress), and another group was stressed severely by applying the stressor twice, with an interval of 6 h, 3 days in a row (severe stress). At the time of the booster, another two groups of previously unstressed, primed fish were treated likewise. Unstressed fish mounted a primary antibody response to SRBC and a secondary response, which was improved compared with the primary response., The primary antibody response against SRBC was impaired by severe, but not moderate, acute stress at priming, whereas the secondary antibody response was unaffected. Both moderate and severe stress at the time of the booster was immunosuppressive in fish that had been primed under non‐stress conditions. It is concluded that cortisol release as a result of stress exposure is most immunosuppressive at the time of the second immunization.

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