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Articles by M. Ramesh Pathy
Total Records ( 2 ) for M. Ramesh Pathy
  A.S. Vickram , V. Devi Rajeswari , M. Ramesh Pathy and T.B. Sridharan
  This is a preliminary study of the protein profiles of the semen in Jersey breed bulls. Jersey bulls were mainly used for fertility purposes; they were grouped based on the fertility, such as highly fertile group (95% fertility), medium fertile group (65-70%), low fertile group (45-50%) and hybrid bulls. Semen of 20 Jersey and hybrid bulls was collected through artificial vagina. The semen characteristics includes volume, pH value, viscosity, viability, sperm concentration, agglutination, total motility and their group, sperm morphology and Hypo-Osmotic Swelling test (HOS) were carried out immediately after collection. Total antioxidant capacity test by using catalase and cholesterol analysis were also carried out. Quantification of the amino acids and proteins were carried out by Ninhydrin and Lowry method, protein analysis by Sodium Dodecyl Sulphate (SDS) was carried out for the following categories. (1) Highly fertile group (Jersey), (2) Medium fertile group (Jersey), (3) Low fertile group (Jersey) and (4) Hybrid group. Analysis of semen protein reveals about seventeen protein bands of sizes ranging between 14 and 205 kDa were identified. Among those proteins bands, the relative protein content of nine bands shows significantly different from each group. The rest of the proteins bands seem to have some positive and/or negative correlation on the semen characterizes or fertility. The antioxidant capacity of highly fertile and hybrid group was very high compare to low fertile group of Jersey. This study clearly indicates the bull seminal plasma proteins are associated with fertility and as well as determination of semen quality and ultimately decides the fertility.
  A.S. Vickram , V. Devi Rajeswari , M. Srinivas , G. Jayaraman , R.A. Kamini , M. Ramesh Pathy , S. Ventat Kumar and T.B. Sridharan
  Purpose of this research was to elucidate the protein profiles of the seminal plasma in various categories of male infertility, to scrutinize their correlation with seminal parameters. Oligoasthenospermia (N = 15), asthenospermaia (N = 17), azoospermia (N = 12), normospermia (N = 27), oligospermia (N = 12) and fertile (control subjects, N = 10) were collected. The samples were diluted by tris-egg yolk extender and were frozen. Plasma was separated from semen by centrifugation, underwent SDS Polyacrylamide Gel Electrophoresis (SDS-PAGE). The mean values with its standard error of semen parameters of fresh sample were shown significant difference (p<0.0001) when compared to the post-thaw samples. Of the various fractionations, the protein with molecular weight 44.6 kDa shows high significant and positive correlation (p<0.01) with sperm concentration of freshly evaluated semen samples and low level significant (p<0.00001) with the frozen samples. Sperm motility was positively correlated (p<0.029) with the protein molecular weight 56.6 kDa in the freeze thawed semen samples. This reality could sustain the implication that seminal plasma proteins act on the sperm physiology and morphology and it found to act on strange ways. Supplementary studies are essential to define the mechanism of different proteins involved in the fertilization and their correlation.
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