Mohd Zamri Saad

Clinico-pathological Features in Mice Following Oral Exposure to Pasteurella Multocida B: 2

Haemorrhagic septicaemia (HS) is a major cause of losses to livestock production in many countries around the world. In Malaysia, more specifically, the disease yet remains a major constraint to the national industry. However, the pathogenesis of haemorrhagic septicaemia is another scenario in which the limitations still exists. Thus, the present paper provides more information on the pathogenicity and host response dynamics in a mouse model. Our study of experimental nature manipulates P. multocida serotype B:2, the bacterium responsible for the disease in Asia. In this study, sixteen mice (n=16) were divided into two groups (A & B) of 8 mice each group. Animals in group A were inoculated orally with 1.0 ml 10 9 cfu/ml of P. multocida type B while mice in group 2 were challenged orally with 1.0 ml of phosphate buffer saline (PBS). The animals were observed for clinical signs for 5 days. The mice showing severe signs and surviving mice after 5 days of post- inoculation were euthanized using cervical dislocation approach and the organs such as heart, lung, kidney, stomach, spleen, colon and small intestine were collected for microscopic examinations. The result indicated that mice inoculated with the Pasteurella multocida showed significant (p<0.05) severe clinical signs compared to control group.These clinical signs ranged from mild to severe in which most of individuals infected with Pasteurella multocida showed moderate to severe clinical signs of ruffled hair, laboured breathing, eye discharge and responsiveness with mean levels of 2.13±0.64, 1.88±0.99, 1.50±1.20 and 1.88±0.99 respectively in comparison to the control group. Moreover, mortality rate was recorded between 24 to 50 h post-inoculation in the group that challenged with Pasteurella multocida type B: 2. Microscopically, the extent of visceral tissue damages due to the infection was scored. The interested parameters included pulmonary oedema, presence of inflammatory cells, haemorrhage and necrosis. Of these parameters, animals in infected group showed significant (p<0.05) differences in all most all visceral organs. Lungs, liver and kidney were, in particular, the most predominantly affected tissues. Therefore, oral inoculation of P. multocida type B in mice showed significant clinical response and cellular changes.

Therapeutic uses of epicatechin in diabetes and cancer

Epicatechin is a natural flavonoid found in green tea. It has been reported to possess an immense antioxidant effect which contributes to its therapeutic effect against a handful of ailments. In this review, we discuss its therapeutic role in the management of two of the most important human diseases; diabetes and cancer. The consumption of epicatechin has been shown to reduce blood glucose levels in diabetic patients, while is anticancer effect was attributed to its antioxidant properties, antiangiogenic and direct cytotoxicity to cancer cells. Although the exact mechanism of action of epicatechin is still being explored, there is no doubt that it is a promising candidate as an alternative. The significance of this review is to highlight the importance of the usage of natural products (in this case, epicatechin) as an alternative for the treatment of two potentially fatal diseases which is diabetes and cancer. The aim of this review is to educate the scientific community on the role of epicatechin in ameliorating the effects of diabetes and cancers on human while understanding the potential mechanisms of these aforementioned effects.

Haematological, Biochemical And Serum Electrolyte Changes In Non-Pregnant Boer Does Inoculated With Corynebacterium Pseudotuberculosis Via Various Routes

Caseous lymphadenitis is a chronic disease characterized by internal and external abscesses and is caused by Corynebacterium pseudotuberculosis.Thisstudy is designed to measure the hematological, biochemicaland serum electrolyte changes in experimental non-pregnant doesinoculated with Corynebacterium pseudotuberculosis via variousroutes. Little is known about the changes in these parameters through different routes of infection.A total of 20 healthy does (n=20) were divided into 4 groups (intradermal, intranasal, oral and control) of 5 goats each. The three groups were inoculated with 107cfu/1ml of live Corynebacterium pseudotuberculosis, while control is kept unexposed. Following infection, blood samples were collected from the jugular vein for hematological, biochemical and serum electrolyteanalysis. A significantdecrease was observed in RBC count (p<0.05) in the intradermal group, whilenochangesobserved in PCV, Hb, MCV and MCHC parameters. Significant increasein WBC were observed in intradermal, intranasal and oral groups (p<0.05). Slight increase (p<0.05) in monocyte count was observed in intranasal group. A significant reduction (p<0.05) in lymphocytic count was observed for the intranasally inoculated group (p<0.05) and a slight increase (p<0.05) in neutrophil was observed in intranasal and intradermal groups. Biochemically,creatinine and albumin levels increases inintranasal group(p<0.05) and GGT levels were elevated in all the three infected groups (p<0.05).However,there were no significant changes in AST, T.Protein and APT. Serumelectrolyte, revealed a decrease in Calcium (Ca+) concentration in intradermal group with concentration of 2.22mmol/L,intranasal 2.23mmol/L group (p<0.05), and no changes were observed in potassium (K+) and sodium (Na+). The study, therefore, observed increase in WBCs, neutrophils, monocytes, creatinine, GGT, albumin levels and decrease in RBCs, lymphocytes and calcium concentrations on different route of infections.

Trypanosomosis in a Sambar Deer

A five years old Sambar deer was presented to the University Veterinary Hospital of Universiti Putra Malaysia. The deer was physically diagnosed with clinical signs of depression, lethargy, teeth grinding, pallor of mucous membranes, the vital parameters showed pyrexia (40.90C), increase in pulse (197beats/min.) and respiratory rates (42 circles/min.). Laboratory examination of the Buffy coat by micro haematocrit centrifugation technique revealed the presence of motile flagellates. Buffy coat smear examination confirmed the presence of Trypanosome spp. The disease was diagnosed based on clinical signs and laboratory finding. Diminazene Aceturate at a dose rate of 3.5mg/kg bodyweight was administered intramuscularly, coupled with multivitamin and fluid therapy proves effective in treating the condition. This report shows the significance of wild ruminants in maintaining the transmission cycle of this parasite and timely treatment could resolve the disease condition.