effect of infection of the filarial parasite brugia malayi - Pondicherry ...

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its absence in B. malayi infected animals observed in the present study may be due to the reduced production of spermatocytes and sperms and this has been confirmed by the histopathological studies'(section 4.4.2.1.3). And it may also be due to the decrease in the testosterone levels and damage of sertoli cells.
CHAPTER 4.4 HISTOPATHOLOGICAL CHANGES IN MASTOMYS NATALENSIS INFECTED WITH BRUGIA MALAY1 AND ITS RELATION TO DEC TREATMENT 4.4.1 MATERIALS AND METHODS A group of 16 animals were maintained for 120 days, of wh~ch half sewed as control and the other half were infected with B. malayi. Four animals each from the control and infected group were administered with DEC (as described earlier) and maintained for comparison purpose. Animals were euthanized using diethyl ether and necropsied. Gross pathology was studied after systematic dissection. Representative tissues from lungs, testes, heart, brain, liver, kidney and spleen were taken and fixed in 10% buffered formalin. Tissues were processed by routine paraffin embedding technique and 5 micron thick sections were prepared and stained with hematoxylin and eosin and examined under light microscope. 4.4.2 RESULTS 4.4.2.1 Studies after B. malayi infection 4.4.2.1.1 Lungs The lungs of the control animals did not have any pathological change except for the presence of few RBC's in the alveoli. In the infected animals, the lesions Included mild exfoliative changes (Plate 2) in bronchiolar epithelium and moderate to severe haemorrhages (Plate 3). ln such areas macrophages laden with haemosederin pigment were also observed (Plate 4). Either sections or complete mf were seen in lumen of blood vessels (Plates 5 & 6). perivascular space within the extravasited blood vessel, in the connective tissue (Plate 6) and beneath the pluera. In some of the areas, mf was surrounded by mononuclear infiltratory cells. Presence of giant cells suggests the chronicity of the lesions (Plate 8). In a few infected animals, adult parasites were seen in pockets (Plate 9) and out of them a few wen ncognised as adult female due to the presence of mf in them. (Plate 10).
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EFFECT OF INFECTION OF THE FILARIAL
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I wish to express my deep sense of
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1. INTRODUCTlON 2. REVIEW OF LlTERA
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As stated earlier, the host immune
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13 Testicular changes Testosterone
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2. REVIEW OF LITERATURE Filariasis
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2.2 Clinical signs Inflammalation o
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the tegument by the release of thei
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the compound kills the filarial wor
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3. MATERIALS AND METHODS COLONY MAI
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Ragenb 1. Tris-HCI buffer . : 0.1 M
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3. Reduced glutathione : 30 mM To I
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4.1.1.6 Glucose-6-phosphate dehydro
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absorbance of the clear supernatant
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-eats I. Lowry's reagent :Solution
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4.1.2.1 Changes in antioxidant enzy
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Fig.3: Effect of B.malayi on SOD in
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Fig.9: Effect of B.rnalayi on GST i
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Fig.12: Effect of 6.rnalayi on GPx
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Fig. 18: Effect of B.malayi on G6PD
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12- 3 m- 15- lor, Fig.21: Effect of
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Fig.27: Effect of B.malayi on Ascor
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4.1.2.3 Change in the antioxidant e
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Fig.35: Effect of B.malayi on CAT i
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m 20 0) - 15 9 g 10 il! 5 0 Fig.39:
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30 25 8 - a 20 2 15 C I 10 I 5 0 35
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Fig.45: Effect of B.maiayi on GSH i
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Fig.49: Effect of B.malayi on Vit-C
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4.1.3 DISCUSSION 4.1 3.1.1 Toxic ox
Page 63 and 64: 1973). The two major systems of LPO
Page 65 and 66: 1981), and their increase in human
Page 67 and 68: 1 0 Fig.58:Relationship between cha
Page 69 and 70: 1 - 0- ' 1 5 - 6 - 7 - Fig.63:Relat
Page 71 and 72: Catalase had been reported to be re
Page 73 and 74: - Fig.68:Relationship between chang
Page 75 and 76: esults in its reduced activity (Con
Page 77 and 78: g 20- :I-. F1g.70:Relationship betw
Page 79 and 80: 12, - I 0 U) Q 4 2 0 - + - Fig.75:R
Page 81 and 82: $ Fig.80:Relationship between chang
Page 83 and 84: Fig.85:Relationship between change
Page 85 and 86: V) (3 :; - Fig.9O:Relationship betw
Page 87 and 88: A reduction in the total thiol cont
Page 89 and 90: 2 5- Fig.98:Relationship between ch
Page 91 and 92: Fig. 103:Relationship between chang
Page 93 and 94: 4.2.1.1 N ay ATPase Reagents Nay AT
Page 95 and 96: Reagents 1. Acetylcholine bromide :
Page 97 and 98: To 1.5 ml of carbonate buffer, 1.5
Page 99 and 100: 4.2.1.10 Differential leucocyte cou
Page 101 and 102: increase in the control animals (Fi
Page 103 and 104: - Fig.110: Effect of 6. malayi on H
Page 105 and 106: efflux and thereby alter the membra
Page 107 and 108: with i n d lymphocytes and decrease
Page 109 and 110: Tubes were labeled for calibrators,
Page 111 and 112: Fig.114: Effect of B, malayi on GTP
Page 113: 433 DISCUSSION Testosterone is a se
Page 117 and 118: Platc 2 Plate 3 Plate 4 Plate 5 Pla
Page 119 and 120: Platc X Plate 9 Plate 10 Plate 11 P
Page 121 and 122: Plate w: Section of Testes of norma
Page 123 and 124: 4.4.2.1.5 Brain The control animals
Page 126 and 127: Plate ICt Section of Kidney of infe
Page 128 and 129: 4.4.2.2 Histopathological changes i
Page 130 and 131: Plate 32
Page 132: The mf could not be seen in spleen
Page 135 and 136: ain, it decreased from 0 day itself
Page 137: inflammatory nature indicative of c
Page 141 and 142: BIBLIOGRAPHY Ackerman, S.J., Gleich
Page 143 and 144: Case, T., Leis, B., Witte, M., Way,
Page 145 and 146: Drabkin, D.L.R. and Austin, J.H. (1
Page 147 and 148: Fukuota, M., Zhou, Y. and Tanaka.(l
Page 149 and 150: Jacob, H.S. and Lux, S.E. (1968). D
Page 151 and 152: Linda, I. and Mayeda, B. (1974). Th
Page 153 and 154: Murray, H.W. (1981). Susceptibility
Page 155 and 156: Santiago- Stevenson, D., Oliver-Gon
Page 157 and 158: Tate, S.S., Thomson, G.A. and Meist
Page 159 and 160: Zaini, M., Ramachandran, C.P. and E
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