scholarly journals Cross-Reactivity against Naja sumatrana (Black Spitting Cobra) Envenoming from the Haffkine Antivenom in a Mouse Model

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Gregory Cham ◽  
Francis Lim ◽  
Arul Earnest ◽  
Ponnampalam Gopalakrishnakone
Keyword(s):  
Mouse Model ◽  
Standard Error ◽  
Challenge Test ◽  
Intraperitoneal Administration ◽  
Cross Reactivity ◽  
Naja Naja ◽  
Swiss Albino Mice ◽  
Tail Vein ◽  
Albino Mice

Naja sumatrana is the dominant cobra species in Malaysia, Singapore, Borneo, and Sumatra, and it does not have specific antivenom. The Haffkine antivenom has been advocated instead. This study aims to determine the efficacy of this antivenom against Naja sumatrana envenoming using a mouse model. Methods. Male Swiss albino mice were used. Intravenous LD50 was first determined separately for Naja naja and Naja sumatrana venom. ED50 was determined by preincubating antivenom with each venom at 2.5 LD50 before administering the mixture into the tail vein. Validation was carried out using a challenge test. Each mouse received 111 µg of Naja sumatrana venom intramuscularly followed by intraperitoneal administration of dilute Haffkine antivenom. Survival was recorded 24 hours after envenoming. Results. The LD50 of Naja naja venom was 78.13 µg, standard error (SE) 13.3 µg. The ED50 of the Haffkine antivenom against Naja naja venom was 45.9 mg, SE 7.5 mg. The LD50 and ED50 of Naja sumatrana venom were 55.5 µg, SE 12.0 µg; and 73.9 mg, SE 12.0 mg, respectively. The intra-peritoneal ED50 against 111 µg intramuscular Naja sumatrana venom was 136.95 mg, SE 36.74 mg. Conclusion. The Haffkine polyvalent antivenom exhibited cross-neutralisation against Naja sumatrana venom when used at a higher dose.

scholarly journals Evaluation of in vitro and in vivo toxicity of pristine molybdenum disulphide nanosheets in Swiss albino mice

2021 ◽  
Author(s):  
Preeti S Saxena ◽  
Umakant Yadav ◽  
Himanshu Mishra ◽  
Vimal Singh ◽  
Anchal Srivastava
Keyword(s):  
Biomedical Applications ◽  
Culture Media ◽  
Lethal Dose ◽  
Intraperitoneal Administration ◽  
Significant Alteration ◽  
Swiss Albino Mice ◽  
Study Results ◽  
Serum Biochemical ◽  
Albino Mice

The Molybdenum disulfide nanosheets (MoS2-NSs) thin films has received increasing attention recently due to their versatile multi functionality including catalytic properties, photoluminescence and flexibility, which suggests their future, uses for biomedical applications. However, there are no studies in detail related with biocompatibility of MoS2 thin sheets. Here, weevaluated the dose-dependent effects of MoS2-NSs on cell viability (MTT assay) and release of lactate dehydrogenase (LDH) into culture media using MG-63 cells, as well as haemolysis, hematological, serum biochemical, antioxidants and histopathological parameters in Swiss albino mice. The MoS2-NSs was synthesized via facile hydrothermal method and characterized using XRD, Raman, SEM, TEM and HRTEM. The in vitro study results suggest that at lower concentration MoS2-NSs does not causes any toxicity. The lethal dose (LD50) was evaluated by intraperitoneal administration with different concentrations and estimated as ~1.0 mg kg-1. The higher dose (1.5 mg kg-1) of MoS2-NSs showed significant alteration in hematological markers and serum biochemical enzymes, as compared to control. Lipid peroxidation also shows significant alteration with respect to the control. Histopathological, hematological and biochemical examination, revealed no remarkable changes at lower concentration (less than 1.0 mg kg-1), however, higher concentration (1.5 mg kg-1) causes significant histopathological, antioxidants and biochemical alterations in tissues and serum, respectively. The results suggest that the lower concentration of MoS2-NSs can be used in future biomedical applications.

scholarly journals Cross-reaction between mouse and rat immunoglobulin G: does it matter in sandwich ELISA?

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Rola Nadeem ◽  
Ahmed B. Barakat ◽  
Mahmoud M. Bahgat
Keyword(s):  
Sandwich Elisa ◽  
Cross Reactivity ◽  
Antigen Detection ◽  
Cross Reaction ◽  
Laboratory Animals ◽  
Elisa Assay ◽  
Swiss Albino Mice ◽  
Specific Antibodies ◽  
Specific Reaction ◽  
Albino Mice

Abstract Background Sandwich ELISA is an ideal antigen detection and quantification assay. Recently, it was used as the basic concept for high technology diagnostics. The specificity of the assay depends on the exclusion of detection cross-reactivity which arises from using two antibodies developed in different species. Since mice and rats are the common laboratory animals used to develop antigen specific antibodies. Therefore, the questions we addressed here were (1) can one use antigen-specific antibodies raised in mice and rats in the same assay to specifically detect/quantify antigens? and (2) which antibodies of the two rodents should be placed for capturing and for detection in the antigen-detection sandwich? Results Direct ELISA assay was used to assess for the specific reaction of the HRP-conjugated antibody to the target serum. First reaction was to compare between either conjugate anti-rat IgG (homologous) or anti-mouse IgG (heterologous) for the detection of rat sera IgG. Following the dilution factor optimization, the O.D. were 0.744±0.051 and 0.604±0.05, respectively (p= .004). The difference in mean O.D. of 0.14 reflected an unaccepted non-specific reaction. The second reaction was to compare between either conjugate anti-mouse IgG (homologous) and anti-rat IgG (heterologous) for the detection of mouse sera IgG. The recorded O.D. were 0.9414±0.14 and 0.317 ±0.141, respectively (p= .0002). The improved difference in mean O.D. of 0.624 reflecting a minimized cross-reaction. Conclusions Our results suggest that it is possible to use both Swiss albino mice and albino rats in a single sandwich ELISA, given that the captured antibody species to be from the Swiss albino mice and the detection antibody to be from the albino rat. The described working details are limited to the source of the antibodies used in the study. However, the approach stresses on the importance of such optimization steps before making any interpretations based on the antigen detection. To our knowledge, this study is the first to cover the optimal order of the capturing and the detection antibodies in a sandwich ELISA assay. In addition to addressing the possible interfering cross-reactivity that result from using mouse and rat serum antibodies in a single assay. Graphical abstract

Protective Effects of Prunus Avium Extract on 10 Ghz Induced Damages in the Spleen of Swiss Albino Mice

2011 ◽  
Vol 3 (8) ◽  
pp. 680-684 ◽  
Author(s):  
Faiza Rifat ◽  
◽  
Archana Sharma ◽  
Preeti Srivastava ◽  
Shikha Patni ◽  
...  
Keyword(s):  
Prunus Avium ◽  
Protective Effects ◽  
Swiss Albino Mice ◽  
Albino Mice

Effects of 10-GHz Microwaves on Hematological Parameters in Swiss Albino Mice and Their Modulation by Prunus avium

2013 ◽  
Vol 32 (3) ◽  
pp. 205-217
Author(s):  
Rashmi Sisodia ◽  
Faiza Rifat ◽  
Archana Sharma ◽  
Preeti Srivastava ◽  
K. V. Sharma
Keyword(s):  
Prunus Avium ◽  
Hematological Parameters ◽  
Swiss Albino Mice ◽  
Albino Mice

PROTECTIVE EFFECT OF ROSEMARY (ROSMARINUS OFFICINALIS L.) EXTRACT OVER THE GENOTOXICITY INDUCED BY CYCLOPHOSPHAMIDE IN SWISS ALBINO MICE

2016 ◽  
Vol 72 (9) ◽  
Author(s):  
Dr. Ayman Salah El-Seedy ◽  
Hany George Shalaby ◽  
Mohamed Ahmed El-Sehrigy ◽  
Madiha Mohiy El-Dein Ghoneim
Keyword(s):  
Protective Effect ◽  
Rosmarinus Officinalis ◽  
Swiss Albino Mice ◽  
Albino Mice ◽  
Rosmarinus Officinalis L

HAEMATO-BIOCHEMICAL AND IMMUNOLOGICAL CHANGES IN EXPERIMENTALLY INDUCED ACETAMIPRID TOXICITY IN SWISS ALBINO MICE

2016 ◽  
Vol 12 (1) ◽  
Author(s):  
D.T. Fefar ◽  
Ankita N. Brahmbhatt ◽  
B.P. Joshi ◽  
D.J. Ghodasara
Keyword(s):  
Dose Level ◽  
Significant Rise ◽  
High Dose ◽  
Cell Mediated Immunity ◽  
Swiss Albino Mice ◽  
Mean Values ◽  
Group Iii ◽  
Treatment Groups ◽  
Immunological Effects ◽  
Albino Mice

A study was conducted on 5 weeks old 64 (32 male and 32 female) Swiss albino mice to assess the haemato-biochemical and immunological effects of acetamiprid. All the male and female mice were randomly divided into eight different groups. The groups I (male) and II (female) served as controls whereas remaining groups served as treatment groups and were administered acetamiprid at the daily dose rate of 20, 10, 5 mg/kg body weight in males(Group III, V, VII) and females (Group IV, VI,VIII),respectively for 28 days. After 28 days treatment, blood samples were collected for hematological, biochemical as well as immunological analysis. There was significant decrease in haematological parameters like Hb, TEC, TLC, neutrophils and lymphocytes count in high dose groups and revealed potential adversity of acetamiprid at rates of 20 mg/kg/day on haematopoetic system of mice. A dose dependent significant rise in mean values of AST and ALT was observed in treatment groups, whereas there was significant decrease in total protein and albumin and increase in BUN in high and mid dose treated groups, irrespective of sex of mice. Dinitroflurobenzene (DNFB) test conducted to assess the cell mediated immunity revealed the toxic effect of acetamiprid on cell mediated immunity of mice at dose level of 10 mg/kg/day. The mice of high dose group revealed a significant decrease in HA titer and indicated the immunotoxic potential of acetamiprid at dose level of 20 mg/kg/day.

Hemostatically potent small molecular weight serine protease from Maclura spinosa (Roxb. ex Willd.) accelerates healing of subcutaneous dermal wounds in Swiss albino mice

Biologia ◽  
2019 ◽  
Vol 75 (1) ◽  
pp. 139-149
Author(s):  
Venkatesh Bommalapura Kulkarni ◽  
Raghu Ram Achar ◽  
Maheshwari Mahadevappa ◽  
Dinesh Sosalagere Manjegowda ◽  
Priya Babu Shubha ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Serine Protease ◽  
Small Molecular Weight ◽  
Swiss Albino Mice ◽  
Albino Mice

scholarly journals Methanol, ethyl acetate and n-hexane extracts of Tragia involucrata L. leaves exhibit anxiolytic, sedative and analgesic activity in Swiss albino mice

Heliyon ◽  
2021 ◽  
Vol 7 (1) ◽  
pp. e05814
Author(s):  
Md. Shofiqul Islam ◽  
Samiron Sana ◽  
Md. Ehsanul Haque ◽  
S.M. Mushiur Rahman ◽  
Abdus Samad ◽  
...  
Keyword(s):  
Ethyl Acetate ◽  
Analgesic Activity ◽  
Swiss Albino Mice ◽  
Hexane Extracts ◽  
Albino Mice
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