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Articles by Abd Wahid Haron
Total Records ( 2 ) for Abd Wahid Haron
  Faez Firdaus Jesse Abdullah , Abdinasir Yusuf Osman , Lawan Adamu , Mohd Syamil Mohd Yusof , Abdul Rahman Omar , Abdul Aziz Saharee , Abd Wahid Haron , Rasedee Abdullah and Mohd Zamri-Saad
  Haemorrhagic Septicaemia (HS) is an acute, fatal, septicaemic disease of cattle and water buffaloes caused by Pasteurella multocida, serotype B:2 in tropical countries. The limitations associated with accurate predictions of mortality, survival levels and the detection of the presence of the organism from various organs of infected animals. Hence, this study used mouse model to evaluate the pattern of mortality and bacterial recovery from organs. Twenty-four mice were randomly divided into two groups. Infected group were inoculated orally with 109 colony forming unit of P. multocida type B, the group 2 were negative controls. The mice were observed for 5 days post-inoculation. At necropsy, visceral organs of dead animals were subjected for the confirmation using Polymerase Chain Reaction (PCR). The results showed that mortality rate was significantly different (p<0.05) between the infected and control groups. Within infected group, highly significant difference (p<0.05) was observed where 12.5% of the mortality rate was recorded within 24 h and 62.5% within 48 h post-infection. The survival rate, in infected group, was found to be around 25%. In diagnosis, P. multocida type B was detected from all organs of animals that did not survive. In contrast, P. multocida type B was neither recovered nor detected from the organs of mice which survived until the end of the experimental period (120 h). The results of this study indicated that manipulation of the organism in experimental animals provided clear information of the incidence of the disease in the field.
  Tooba Mirzapour , Mansoureh Movahedin , Tengku Azmi Bin Tengku Ibrahim , Abd Wahid Haron , Zohreh Makoolati and Mohamadreza Nowroozi
  Exogenesis (cross-species) germ cell transplantation provides an opportunity to investigate fundamental aspects of spermatogenesis. In this study, testis biopsies of patients with maturation arrest of spermatogenesis during a one year ago were first minced mechanically into small pieces and then Spermatogonial Stem Cells (SSCs) and Sertoli cells isolated by the two- step enzymatic digestion, were plated and grown on DSA-Lectin coated dishes in Dulbecco's Modified Eagle's Medium (DMEM) containing 10% fetal calf serum. Transplantation of human spermatogonial cells into mouse recipient testis was performed on day 7 (before colony formation) and 2 weeks after culturing (colony formation). The effects of different concentrations of spermatogonial cell on quantity of transplantation and percent of colonized seminiferous tubules were assayed during 8 weeks after transplantation. The result showed that SSCs can be observed on the basement membrane of the seminiferous tubules in place of spermatogonial stem cells and proliferation occurs about 4 weeks after transplantation. The difference in donor cells concentration had more effect on colonization of mouse recipient testis (p<0.05). It will be an alternative approach for the repopulation of infertile seminiferous tubules and preservation of fertility, in the future.
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