PubMed Health⌕ Search

Biomedical subjects

T Swain

Publications and source records attributed to T Swain.

8 recordsLinked to original sources
PubMed2004

Seminoma in hybrid catfish [Clarias batrachus (Linnaeus) female x Clarias gariepinus (Burchell) male].

Spontaneous testicular tumors, seminoma, were noticed in four male hybrid catfish (C. batrachus female x C. gariepinus male) after the age of two years. The hybrids showed massive abdominal swelling with catchectic body and free lobulated, encapsulated tumors (> 325 g) within the serosanguinous fluid-filled peritoneal cavities. The tumor cells were large and polyhedral with prominent centrally located nuclei. Other vital organs appeared normal. It seems to be the first report of seminoma in hybrid catfish and possibly of genetic cause.

Abdomen↗
PubMed2003

Dietary bovine lactoferrin induces changes in immunity level and disease resistance in Asian catfish Clarias batrachus.

The effects of including bovine lactoferrin (Lf) in the diet of the Asian catfish (Clarias batrachus) on specific and non-specific immunity as well as disease resistance were investigated. The catfish were fed four different diets for 2 weeks: a commercial diet as control and the same diet supplemented with 50, 100 and 200mg bovine Lf/kg feed. After 1 and 2 weeks, serum bacterial agglutination titre against Aeromonas hydrophila as a measure of specific immunity; natural serum haemolysin titre, lysozyme activity and oxidative radical production by neutrophils as a measure of non-specific immunity as well as disease resistance against A. hydrophila challenge to vaccinated and non-vaccinated animals were evaluated. The results showed that Lf supplements, particularly at 100mg level, significantly (P<0.05) enhanced serum lysozyme level, oxidative radical production and level of protection against A. hydrophila challenge in non-vaccinated animals irrespective of length of exposure. The specific immunity was not influenced by Lf feeding as evidenced from the bacterial agglutination titre and level of protection in vaccinated animals. As Lf feeding at 100mg/kg for 1 week is able to enhance the non-specific immunity and disease resistance of catfish efficiently, these results support the possible use of Lf as an immunostimulant for farmed catfish.

Aeromonas hydrophila↗
PubMed2001

Cross-Cultural Research on Anorexia Nervosa: Assumptions Regarding the Role of Body Weight.

OBJECTIVE: To critically examine two assumptions guiding cross-cultural research on the weight concerns of anorexia nervosa: (1) that weight concerns are specific to contemporary, Western manifestations of the disorder and (2) that the dissemination of Western values regarding thinness is primarily responsible for the development of anorexia nervosa in non-Western contexts. METHOD: A review of theoretical and empirical literature on cross-cultural aspects of anorexia nervosa and the medical records of 14 Asian patients treated for eating disorders in Sydney, Australia. RESULTS AND DISCUSSION: Regarding the first assumption: It is argued that weight concerns when defined as weight loss that is positively valued (rather than a fat phobia) is a defining characteristic of anorexia nervosa and is not limited to contemporary, Western cases of the disorder. Regarding the second assumption: It is argued that the occurrence of anorexia nervosa in non-Western contexts cannot be solely attributed to the acceptance of Western thinness ideals because values and practices intrinsic to non-Western cultures are also likely to be etiologically relevant.

Anorexia Nervosa↗
PubMed1985

Measurement of total protein in plant samples in the presence of tannins.

A method for measuring total protein in situ in plant samples has been developed using the determination of amino acids released by acid hydrolysis of dried plant material. Standard proteins and plant samples were hydrolyzed with 3% sulfuric acid at 100 degrees C for 24 h and the amino acids released were measured with ninhydrin. Unhydrolyzed plant extracts were also analyzed for free amino acids with ninhydrin. Total amino acid equivalents (protein plus free amino acids) of a diverse set of plant samples was significantly correlated with total protein as estimated by elemental analysis (N X 6.25). The Lowry method as modified by precipitation of proteins with trichloroacetic acid was found to be unsatisfactory for dried plant samples due to the incomplete extractability of proteins. Although some alkaloids caused increased absorbance with ninhydrin, interference with quantification of protein is likely to be minimal. Tannins interfered with the Lowry and Bradford methods but not the ninhydrin method.

Alkaloids↗