Five Best Publications

» R.S Beyo, L Divya, Smita M, Oommen O V & M A Akbarsha (2008)
Stages in follicle cell/oocyte interface during vitellogenesis in caecilians Ichthyophis tricolor and Gegeneophis ramaswamii: a transmission electron-microscopic study. Cell Tissue Res, 331, 519 - 528. DOI 10.1007/s00441-007-0523-2.
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» R.S Beyo, P Sreejith, L Divya,  Akbarsha M A, Oommen O.V (2007)
Assembly of  ovarian  follicles  in the Caecilians Ichthyophis tricolor and Gegeneophis ramaswamii:  light and transmission electron microscopic  study.  Zygote, (Cambridge University Press)15,199-213.
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» D J. Gower, M Dharne, G Bhatta, V Giri, R Vyas, V Govindappa, Oommen O V, J George, Y Schouche & M Wilkinson (2007). Remarkable genetic homogeneity in unstriped, long-tailed Ichthyophis (Amphibia: Gymnophiona: Ichthyophiidae) along 1500 km of the Western Ghats, India. J.  Zool. London 272, 266-275.
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» Haruyo Ichikawa, Mangalam S. Nair, Yasunari Takada, D.B. Alan Sheeja, M.A. Suresh Kumar, Oommen O.V and Aggarwal B. B (2006) Isodeoxyelephantopin, a novel sesquiterpene lactone, potentiates apoptosis, inhibits invasion, and abolishes osteoclastogenesis through suppression of Nuclear Factor-KB (NF-KB) activation and NF-KB-regulated gene expression, Clin Cancer Res 12, 5910-5918.
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» Bossuyt F, Meegaskumbura M, Beenaerts N, Gower D.J, Pethiyagoda R, Roelants K, Mannaert A, Wilkinson M, Bahir M.M, Manamendra-Arachchi K, Ng PKL, Schneider C.J, Oommen O.V, Milinkovitch.M.C (2004). Local endemism within the Western Ghats-sri Lanka biodiversity hotspot. Science. Oct 15; 306(5695): 479-81.
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» Thapliyal, J. P., Chandola, A., Kumar, D. S., and Oommen, O. V. (1974). Testosterone versus thyroid hormone in the regulation of oxidative metabolism in two species of reptiles. J. Endocrinol. 63: 419-420.

» Thapliyal, J. P., Kumar, D. S., and Oommen, O. V. (1975). Variation in thyroid activity and respiratory rate during a 24 hour period and of testosterone and thyroxine in vivo on the oxidative metabolism of Natrix piscator. Gen. Comp. endocrinol. 23: 100-106.

» Thapliyal, J. P., Oommen, O. V., Kaur, R. J., and Garg, R. K. (1977). Effects of surgical thyrodectomy and L-thyroxine on the oxidative metabolism and haemopoiesis of spotted munia, Lonchura punctulata. Gen. Comp. Endocrinol. 31: 486-491.

» Oommen, O. V. (1978). Seasonal variations in the response of isolated skeletal muscle and liver from the lizard, Calotes versicolor, to hormones in vitro. J. Zool. Soc. India. 30: 1-6.

» Oommen, O. V. (1980). Effects of testosterone, its metabolites and testosterone plus actinomycin D or Chloramphenicol on oxidative metabolism of lizard tissue in vitro. J. Anim. Morphol. Physiol. 27: 124-131.

» Johnson, C., and Oommen, O. V. (1982). Seasonal variation on the biochemical constitutes in tissues of garden lizard, Calotes versicolor. J. Reprod. Biol. Comp. Endocrinol.2: 64-68.

» Oommen, O. V. (1983). Effect of castration and testosterone administration on the    thyroid activity and oxygen consumption in the Indian palm squirrel, Funambulus pennanri (wrongton). J. Anim. Morphol. Physiol. 30: 27-33.

» Oommen, O. V., and Sunny, F. (1984). Effects of administration of glucagon and epinephrine on few organic constituents of the liver in male Calotes versicolor.           J. Reprod. Biol. Comp. Endocrinol. 1-4: 24-27.

» Sreedeviamma, K. K., and Oommen, O. V. (1984). Role of thyroid gland in the oxidative metabolism of Calotes versicolor. J. Reprod. Biol. Comp. Endocrinol. 4: 78-85.

» Oommen, O. V. (1985). Effect of temperature and testosterone in vitro on oxidative metabolism of lizard tissues Indian. J. Comp. Anim. Physiol. 3: 9-11

» Josekumar, V. S., and Oommen, O. V. (1986). Thyroid-Gonad interrelationships in the garden lizard, Calotes versicolor. J. Reprod. Biol. Comp. Endocrinol. 6: 86-97.

» Ignatius, J., and Oommen, O. V. (1987). Effect of adrenaline on oxidative metabolism in a bony fish Anabas testudineus (Bloch). Indian. J. Exp. Biol. 25: 613-617.

» Peter, M. C. S., and Oommen, O. V. (1987). Effects of administration of tri-iodthyronine on oxidative metabolism in a bony fish Anabas testudineus (Bloch). J. Reprod. Biol. Comp. Endocrinol. 7: 53-60.

» Sreedeviamma, K. K., and Oommen, O. V. (1987). Influence of testosterone on few biochemical constituents in different tissues of Indian garden lizard, Calotes versicolor. J. Reprod. Biol. Comp. Endocrinol. 7: 13-20.

» Prasannakumar, K., and Oommen, O. V. (1988). Adrenal hormones and oxidative metabolism in the liver of Indian garden lizard, Calotes versicolor. Indian. J. Exp. Biol. 26: 128-128.

» Jameela, T. P., and Oommen, O. V. (1988). Role of adrenal hormones on the turn over of chemical constituents and the activities of two hepatic enzymes in Anabas testudineus (Bloch). Proc. Indian. Natn. Sci. Acad. B. 54: 25-30.

» Oommen, O. V., and Sreedeviamma, K. K. (1988). Influence of thyroid hormones and testosterone on the activities of hepatic mitochondrial enzymes in the garden lizard, Calotes versicolor. Gen. Comp. Endocrinol. 69: 392-398.

» Oommen, O. V., and Peter, M. C. S. (1988). Thyroid hormones and hepatic enzymes of a teleost, Anabas testudineus (Bloch). The Physiologist (USA). 30, 4: 127.

» Peter, M. C. S., and Oommen, O. V. (1988). Effects of thyroid and gonadal hormones on hepatic succinate dehydrogenase activity of a teleost, Anabas testudineus (Bloch). Zool. Science (Japan). 6: 185-189.

» Josekumar, V. S., and Oommen, O. V. (1988). Effect of adrenaline on hepatic enzyme activities in apodan amphibia, Gegenophis carnosus. Indian. J. Exp. Biol. 26: 796-800.

» Peter, M. C. S., and Oommen, O. V. (1988). Influence of thyroid hormones on hepatic    mitochondrial enzymes of thiouracil treated teleost, Anabas testudineus (Bloch). Indian. J. Exp. Biol. 26: 651-653.

» Sutharam, K. K., and Oommen, O. V. (1989). Effect of thyroid hormones on energy      metabolism in an apoda Gegenophis carnosus. Indian. J. Exp. Biol. 26: 651-653.

» Peter, M. C. S., and Oommen, O. V. (1989). Oxidative metabolism in a teleost, Anabas testudineus (Bloch): Effect of thyroid hormones on hepatic enzyme activities. Gen. Comp. Endocrinol. 73: 96-107.

» Peter, M. C. S., and Oommen, O. V. (1989). Effect of thyroid hormones on the activities of  hepatic enzymes in thiouracil treated teleost, Anabas testudineus (Bloch). Current Science. 58: 67-68.

» Peter, M. C. S., and Oommen, O. V. (1989). The effect of testosterone and its metabolite on the activities of oxidative enzymes in Anabas testudineus (Bloch). J. Reprod. Biol.Comp. Endocrinol. 8: 10-17.

» Josekumar, V. S., and Oommen, O. V. (1989). Effect of corticosterone administration on the activities of oxidative enzymes in Gegenophis carnosus (Beddome). Indian. J. Comp. Anim. Physiol. 2: 159-164.

» Josekumar, V. S., and Oommen, O. V. (1989). Effect of insulin administration on the oxidative metabolism in an apoda Gegenophis carnosus (Beddome). Indian. J. Comp. Anim. Physiol. 7: 29-34.

» Peter, M. C. S., and Oommen, O. V. (1989). Response of hepatic oxidative enzymes to administration of estradiol-17B estradiol and diethylstilbestrol in Anabas testudineus. J. Reprod. Biol. Comp. Endocrinol. 1: 48-55.

» Peter, M. C. S., and Oommen, O. V. (1989). Oxidative metabolism in a teleost Anabas testudineus (Bloch): Effect of testosterone and 17B on hepatic enzyme activities. Fish. Physiol. Biochem (Canada). 6: 377-385.

» Ignatius, J., and Oommen, O. V. (1989). Effect of insulin on hepatic mitichondrial       enzymes in a teleost Anabas testudineus (Bloch). J. Reprod. Biol. Comp.Endocrinol. 1: 89-96.

» Ignatius, J., and Oommen, O. V. (1990). Effect of bovine insulin on oxidative metabolism in a teleost Anabas testudineus (Bloch). Proc. Indian. Nat. Sci. Acad. B56: 319-326.

» Jacob, V., and Oommen, O. V. (1990). Intermediary metabolism in lizard Calotes      versicolor: Role of thyroid hormones. Gen. Comp. Endocrinol. 77: 327-336.

» Sutharam, K. K., Peter, M. C. S., and Oommen, O. V. (1990). Stimulation of oxidative metabolism by thyroid hormones in an apodan amphibia, Gegenophis carnosus (Beddome). Gen. Comp. Endocrinol. 79: 246-252.

» Ignatius, J., and Oommen, O. V. (1990). Effects of corticosteroids and protein synthesis inhibitors on activities of oxidative enzymes in a bony fish, Anabas testudineus (Bloch). Gen. Comp. Endocrinol. 78: 303-310.

» Sutharam, K. K., Peter, M. C. S., and Oommen, O. V. (1991). Androgenic control of   hepatic mitochondrial metabolism in an apoda, Gegenophis carnosus (Beddome). Indian. J. Exp. Biol. 29: 1027-1030.

» Ignatius, J., and Oommen, O. V. (1991). Stimulation of oxidative metabolism by glucagon in a fish Anabas testudineus (Bloch). J. Reprod. Biol. Comp. Endocrinol. 2: 51-57

» Peter, M. C. S., and Oommen, O. V. (1991). Role of thyroid hormones in rotenone-treated teleost  Anabas testudineus (Bloch): Effects on oxidative enzyme activities. Indian.J.Exp. Biol. 29: 481-483.

» Oommen, O. V., and Matty, A, J. (1991). The effect of thyroid hormones and starvation on mitochondrial nucleic acids and on plasma proteins of rainbow trout (Onchorhynchus mykiss). Gen. Comp. Endocrinol. 83: 468-472.

» Jacob, V., and Oommen, O. V. (1991). A comparison of the effects of corticosterone and cortisol on intermediary metabolism of Calotes versicolor. Gen. Comp. Endocrinol. 85: 86-90.

» Ballantyne, J. S., John, T. M., Singer, T. D., and Oommen, O. V. (1992). Short-term effects of tri-iodothyronine on the bow fin, Amia calva (Holostei) and the lake char, Savelinus namaycush (Teleostei). The. J. Exp. Zool. 261: 105-109.

» Jacob, V., and Oommen, O. V. (1992). Role of thyroid hormones in intermediary metabolism of propanalol or alloxan-treated Calotes versicolor. The. J. Exp. Zool. 262: 263-270.

» Peter, V. S., and Oommen, O. V. (1992). Intermediary metabolism in castrated/ thyroidectomised Calotes versicolor: Regulation by thyroxine and testosterone. Zool. Sci. (Japan). 9: 1059-1064.

» Peter, M. C. S., and Oommen, O. V. (1992). Effect of bovine insulin on the turnover of biochemical constituents and the activities of certain enzymes a teleost Anabas testudineus (Bloch). J. Reprod. Biol. Comp. Endocrinol. 3: 95-103.

» Peter, V. S., and Oommen, O. V. (1993). Stimulation of oxidative metabolism by thyroid hormones in propanalol / alloxan treated bony fish Anabas testudineus (Bloch). The. J. Exp. Zool. 266: 85-91.

» Johnson, B., and Oommen, O. V. (1993). Cortisol and hepatic intermediary    metabolism in lower vertebrates: A comparative study in a teleost, Anabas testudineus and an apodan amphibia Gegenophis carnosus. J. Reprod. Biol. Comp. Endocrinol. 5: 44-50.

» Suresh Kumar, M. A., Oommen, O. V., and Karnavar, G. K. (1993). Studies in the influence of azadirachtin on the intermediary metabolism of an insect Teleogryllus mitratus. J. Reprod. Biol. Comp. Endocrinol. 5: 1-7.

» Kaipallil, J. D., and Oommen, O. V. (1994). Influence of estrogen on intermediary metabolism in a teleost Anabas testudineus and the lizard Calotes versicolor. The. J. Exp. Zool. 270: 467-473

» Nair, P., and Oommen, O. V. (1995). Thyroid stimulating hormone stimulates the intermediary metabolism in Anabas testudineus. American Zool. 35: 47A.

» Peter, M. C. S., Sutharam, K. K., and Oommen, O. V. (1996). In vitro effect of thyroid and gonadal hormones on the activity of mitochondrial oxidative enzymes in a teleost Anabas testudineus (Bloch) and an apodan amphibia Gegenophis carnosus (Beddome). Proc. Indian. Natn. Sci. Acad. B62: 71-80.

» Oommen, O. V., Peter, M. C. S., and Alex, S. (1996). Insulin and corticosterone in a teleost Anabas testudineus (Bloch): effect of certain biochemical parameters of intermediary metabolism. Proc. Indian. Natn. Sci. Acad. B62: 173-180.

» Nair, P., and Oommen, O. V. (1997). Role of thyroxine on intermediary metabolism of thiouracil treated Anabas testudineus. Indian. J. Exp. Biol. 35: 983- 986.

» Suresh Kumar, M. A., Karnavar, G. K. and Oommen, O. V. (1997). Effect of human insulin on the intermediary metabolism of Teleogryllus mitratus. Entomon. 22, (3 & 4): 199-205.

» Valamparampil, T., and Oommen, O. V. (1997). Tri-iodothyronine (T3) and thyroxine    T4 levels in Rana curtipes during development and metamorphosis. Indian. J. Exp. Biol. 35: 1375-1377.

» Oommen, O. V., and Matty, A. J. (1997). Metabolism in poikilotherms: Regulation    by thyroid hormones. In ‘Frontiers in Environmental and Metabolic Endocrinology’. (Ed. Maitra, S. K.. Univ. Burdwan. Pp 1- 11.

» Suresh Kumar, M. A., Oommen, O. V., and Karnavar, G. K. (1998). L- thyroxine modifies ovarian development and intermediary metabolism in Teleogryllus mitratus (Gryllidae: Orthoptera). The J. Endocrinol. Reprod. 1, (2): 86-91.

» Oommen, O. V., and Johnson, B. (1998). Metabolic effect of growth hormone in a teleost Anabas testudineus. In ‘Trends in Comparative Endocrinology and Neurology: From Molecular to Integrative Biology’. (Eds. Vauidry, H., M. Toron, E. W. Roubos).

» Nair, P. N., and Oommen, O. V. (1998). Effect of TRH and TSH on hepatic intermediary metabolism in normal and thiouracil-treated teleost, Anabas testudineus. Indian. J.Exp. Biol. 36: 470-475.

» Varghese, S., and Oommen, O. V. (1999). Thyroid hormone regulate lipid metabolism in a teleost, Anabas testudineus (Bloch). Comp. Biochem. Physiol. 124: 445-450.

» Leena, S., Shameena, B. and Oommen, O. V. (1999). Studies on the effect of growth hormone in vivo and in vitro on lipogenic enzymes and transaminases, in a teleost Anabas testudineus (Bloch). Endocrine. Res. 25, 3/4: 341-355.

» Leena, S., Shameena, B. and Oommen, O. V. (1999). Variation in lipid composition by bovine growth hormone in Anabas testudineus (Bloch). J. Endocrinol. Reprod.3, (1) 11-19.

» Oommen, O. V., Nair, P. N., Baby, J., Suresh Kumar, M. A., and Thomas, T. V. (2000) Thyroid in intermediary metabolism. In ‘Comparative Endocrinology and Reproduction’. (Eds. Joy, K. P., C. Haldar, and A. Krishna). Narosa Publishing House, New Delhi. pp: 585-599.

» Varghese, S., and Oommen, O. V. (2000). Effect of tri-iodothyronine (T3) and di-iodothyronine (T2) on lipid metabolism in a teleost Anabas testudineus (Bloch).Indian.J. Biochem. Biophys. 37,188-191.

» S.Leena and Oommen O.V. (2000). Hormonal control of enzymes of osmoregulation in a teleost Anabas testudineus (Bloch): An in vivo and in vitro study. Endocrine Research 26 (2), 169-187.

» Shameena, B., Varghese, S., Leena, S and Oommen, O.V. (2000) 3,5,3’-Tri-iodo thyronine (T3) and Di iodothyronine have short-term effects on lipid metabolism in a teleost Anabas testudineus (Bloch): Evidence from enzyme activities. Endocrine Research (Marcel &Dekker) 26 (3), 431-444.

» James, J., Valamparampil, T., and Oommen, O.V. (2000). Studies on the development of  the labial teeth row In Rana Curtipes Tadpoles J.Bombay Nat.Hist.Soc.97.223-229.

» Oommen, O.V., Measey J.G., Gower, J.D., and Wilkinson, M. (2000) Distribution and abundance of the caecilian Gegenophis ramaswami (Amphibia: Gymnophiona) in southern Kerala. Current Science .79, 9, 1386-1389.

» Varghese, S., and Oommen, O. V. (2000). Long term feeding of dietary oils alters lipid metabolism, Lipid peroxidation, and antioxidant enzyme activities in a teleost Anabas testudineus (Bloch). Lipids. 35, 757-762.

» Leena S., Lakshmy PS and Oommen O.V (2000). Effect of carp growth hormone on lipid metabolism in a teleost, Anabas testudineus (Bloch). J. Endocrinol Reprod 4 (1). 26-34.

» Francis Sunny and Oommen O.V. (2000). Steroid hormones regulate enzymes of osmoregulation in a fresh water fish Oreochromis (tilapia) mossambicus. J. Endocrinol Reprod 4 (2): 63-73.

» Leena, S., Shameena, B., Oommen, O.V. (2001) In vivo and in vitro effects of prolactin and growth hormone on lipid metabolism in a teleost, Anabas testudineus (Bloch). Comp. Biochem. Physiol. Part B.128, 761-766.

» Leena S., Lakshmy PS and Oommen O.V (2000). Effect of carp growth hormone on lipid metabolism in a teleost, Anabas testudineus (Bloch). J. Endocrinol Reprod 4 (1). 26-34.

» Francis Sunny and Oommen O.V. (2000). Steroid hormones regulate enzymes of osmoregulation in a fresh water fish Oreochromis (tilapia) mossambicus. J. Endocrinol Reprod 4 (2): 63-73.

» Leena, S., Shameena, B., Oommen, O.V. (2001) In vivo and in vitro effects of prolactin and growth hormone on lipid metabolism in a teleost, Anabas testudineus (Bloch). Comp. Biochem. Physiol. Part B.128, 761-766.

» Varghese, S., Shameena, B., Oommen, O.V. (2001) Short term effects of thyroid hormones on lipogenic enzymes and C-14 acetate incorporation into various lipid classes: In vivo and in vitro studies. Indian.J.Exp.Biol.39, 431-435.

» Leena, S., Oommen, O.V. (2001) Growth hormone and prolactin in a teleost, Anabas  testudineus (Bloch). Effect of time of administration.Biol.Rhythm.Res (Swets & Zeitlinger) The Netherlands. 32, 501-510.

» Varghese, S., Shameena, B., Oommen, O.V. (2001) Thyroid hormones regulate lipid peroxidation and antioxidant enzyme activities in Anabas testudineus (Bloch). Comp. Biochem. Physiol (Elsevier). Part B, 165-171.

» Measey, G.J., Gower, D.J., Oommen, O.V., Wilkinson, M. (2001) Permanent marking of a fossorial caecilian, Gegenophis ramaswamii (Amphibia: Gymnophiona: Caecilidae) J.South Asian Natural History 5, Part 2 109-115.

» Sunny, F and Oommen, O.V. (2001) Rapid action of glucocorticoids on branchial ATPase activity in Oreochromis mossambicus: an in vivo and in vitro study. Comp. Biochem. Physiol (Elsevier), Part B. 130, 323-330.

» Shameena, B., Renuka, T.R., Varghese, S., Paulose, C.S., Oommen, O.V (2001) Hypothyroidism and nutritional status alter 3,5,3’ Tri-iodothyronine (T3) receptors in isolated liver nuclei of Anabas testudineus (Bloch). Endocrine Res. (Marcel & Dekker, USA) 27 (3), 329-336.

» Varghese, S., Shameena, B., Biju, M.P., Shankar, E., Paulose, C.S., Oommen, O.V. (2001) Polyunsaturated fatty acids (PUFA) regulate neurotransmitter contents in rat brain. Indian. J.Biochem.Biophys. vol.38.pp.327-330.

» Varghese, S., Lakshmy, P.S and O. V. Oommen. (2001). Changes in lipid peroxidation and antioxidant enzyme activities by triiodothyronine (T3) and Poly Unsaturated fatty acids (PUFAs) in rat liver. Endocrine Res. 27, 4- - 409-416.

» Sunny, F and Oommen, O.V. (2002) Rapid action of testosterone and diethyl stilbestrol on enzymes of osmoregulation in a freshwater fish, Oreochromis mossambicus. Endocrine Res. (Marcel & Dekker) 28, (1& 2) 69-81.

» Sunny F., Mohan, K. G & Oommen, O. V. (2002). Influence of steroid hormones on plasma proteins in freshwater tilapia Oreochromis mossambicus. Indian J. Exp.Biol. Vol.40, October, pp. 1206-1208.

» Gower D.J., Kupfer A., Oommen O. V., Himstedt, W., Nussbaum R. A., Simon P.L., Presswell B., Muller H., Krishna S. B., Boistel R and Wilkinson M. (2002). A Molecular phylogeney of ichthyophiid caecilians (Amphibia: Gymnophiona:Ichthyophiidae):  Out of India or out of Southeast Asia? Proc. Royal Society (London) B. 269,1563-1569.

» Wilkinson M., Sheps, J. A., Oommen O. V., Cohen, B. L (2002) Phylogenetic relationships of Indian caecilians (Amphibia: Gymnophiona) inferred from mitochondrial rRNA sequences. Mol. Phylogenetics & Evol. 23, 401-407.

» Sunny F, Lakshmy PS and Oommen OV (2002). Rapid action of cortisol and testosterone on lipogenic enzymes in a fresh water fish Oreochromis mossambicus: short –term in vivo and in vitro study. Comp. Biochem. & Physiol. Part B: 131: 297- 304.

» Oommen O. V and Sunny, F (2002). Non-genomic action – a recent trend in steroid hormone action Proc. Reprod. Biol. Comp. Endocrinol. 11-14.

» Wilkinson M., Richardson K.R., Gower D. J & Oommen O.V (2002). Extended embryo retention, caecilian oviparity and amniote origins J Nat History 36, 2185- 2198.

» Sunny F., Annamma J & Oommen O.V. (2002). Sex steroids regulate intermediary metabolism in Oreochromis mossambicus. Endocrine Research. Vol. 28, No. 3, pp.175-188.

» Smita M, Jancy MG, Akbarsha MA, Oommen O.V and Wilkinson M, (2002). Association of leucocyte cell population with spermatogenic cysts of caecilians (Amphibia: Gymnophiona) yet another paradoxical situation in caecilian reproduction. Proc XX Symp Reprod Biol Comp Endocrinol. 65-66.  India

» Jancy M.G, Smita M, Oommen O.V, Akbarsha M.A. (2002). Ultrastructural evidence for secretion of a glcoproteinaceous substance in the epithelial cells of the Mullerian gland of male caecilians. Proc XX   Symp Reprod Biol Comp Endocrinol. p.69-70, India

» Smita M, Jancy M.G, Akbarsha M.A, Oommen O.V. (2002). Sperm transport on a caecilian: Ichthyophis tricolor  (Amphibia: Gymnophiona). Proc XX   Symp Reprod Biol Comp Endocrinol. p.67-68. India

» Sunny F & Oommen O.V. (2002). Ultrastructural modifications in gill epithelial cells following cortisol treatment in Oreochromis mossambicus. Proc XX Symp Reprod Biol Comp Endocrinol.7-9.

» Presswell, B., Gower, D.J., Oommen O.V., Measey, G.H., & Wilkinson, M. (2002). Scolecophidian snakes in the diets of South Asian Caecilian amphibians. Herpt. Journals, 12, 123-126.

» Johnson, C., Banerji, A., & Oommen O.V. (2003). A comparative study of allitin and      garlic on lipid turn over in a teleost, Anabas testudineus (Bloch). Indian J. Exp. Biol. 41, 242-247.

» Measey, G.J., Gower, D.J., Oommen O.V., Wilkinson, M. (2003). Quantitative surveying of endogeic limbless vertebrates- a case study of Gegeneophis ramaswamii (Amphibia: Gymnophiona: Caeciliidae) in southern India. Appl. Soil Eco. 23, 43-53.

» Sunny F., Annamma J & Oommen O.V. (2003). Genomic effect of glucocorticoids on enzymes of intermediary metabolism in Oreochromis mossambicus. Dekker, Inc. Endocrine Research, 29,2.119-131.

» Scheltinga D.M, Wilkinson M, Jamieson B.G.M, Oommen O.V. (2003). Ultrastructure of the mature spermatozoa of Caecilians (Amphibia: Gymnophiona) J Morphol, 258 (2): 179- 192.

» Measey G.H, Gower D.J, Oommen V. O & Mark Wilkinson. (2003). A mark- recapture study of the caecilian amphibian Gegeneophis ramaswamii (Amphibia: Gymnophiona: Caeciliidae) in Southern India. J. Zool. Lond. 261,129- 133.

» Smita, M., Oommen V. O., Jancy M. G., M. A. Akbarsha (2003). Sertoli cells in the testis of Caecilians, Ichthyophis tricolor and Uraeotyphlus cf. narayani (Amphibia: Gymnophiona): Light and Electron Microscopic Perspective J.Morphol, 258: 317- 326.

» Smita M, Oommen O.V. Jancy M.G & Akbarsha M. A. (2004). Stages in spermatogenesis of two species of caecilians Ichthyophis tricolor and Uraeotyphlus cf. narayani (Amphibia: Gymnophiona): Light and Electron microscopic Study. J. Mophol. 261(1): 92-104.

» Sunny F & Oommen O.V. (2004). Effects of steroid hormones on total brain Na-K+ATPase activity in Oreochromis mossambicus. Ind. J. Exp Biol. 42.283-287.

» Aggarwal B.B, Takada Y, Shishodia S, Gutierrez A.M, Oommen O.V. Ichikawa H, Baba Y, Kumar A. (2004). Nuclear transcription factor NF-kappa B: Role in biology and   Medicine. Ind. J. Exp. Biol. 42.341-353.

» San Mauro D, Gower D.J, Oommen O.V, Wilkinson M, Zardoya R. (2004). Phylogeny of caecilian amphibians (Gymnophiona) based on complete mitochondrial genomes and nuclear RAG1.Mol Phylogenet Evol. Nov; 33(2): 413- 27

» Jancy M.G, Smita M, Kadalmani B, Girija R, Oommen O.V., Akbarsha M.A. (2004). Secretory and Basal cells of the epithelium of the tubular glands in the male Mullerian gland of the caecilian Uraeotyphlus narayani (Amphibia: Gymnophiona) J. Morphol Dec; 262(3): 760-9.

» Sunny F & Oommen O.V. (2004). Scanning electron microscopic evaluation of effect of cortisol on chloride cells of tilapia, Oreochromis mossambicus. Ind J. Exp Biol. 42. 398- 402

» Jancy M.G., Smita M, Oommen O.V. and Akbarsha M. A. (2004): Histology and Ultrastructure of Male Mullerian Gland of Uraeotyphlus cf. narayani (Amphibia: Gymnophiona). J. Morphol. 260: 33-56

» Measey J G, Gower DJ, Oommen O.V, Wilkinson M.A. (2004). Subterranean generalist predator: diet of the soil-dwelling caecilian Gegeneophis ramaswamii (Amphibia; Gymnophiona; Caeciliidae) in southern India. C R Biol. 327(1): 65- 76.

» Smita M, Jancy M.G, Girija R, Akbarsha M.A. and Oommen O.V. (2004). Spermiogenesis in caecilians Ichthyophis tricolor and Uraeotyphlus cf. narayani (Amphibia: Gymnophiona): Analysis by Light and Electron Microscopy. J. Morphol, 262(1): 484-99.

» Aggarwal B.B, Takada Y and Oommen O.V. (2004). From Chemoprevention to Chemotherapy Common targets and Common goals. Invited Review for Expert Opinion on Investigational Drugs(Ashley Publications). Expert Opin Investig Drugs. 2004 Oct; 13(10): 1327-38.

» D.J. Gower, G. Bhatta, V. Giri, Oommen O.V, M.S Ravichandran, M. Wilkinson. (2004). Biodiversity in the Western Ghats: The discovery of new species of caecilian amphibians Curr Science 87: 6, 739-740.

» Bossuyt F, Meegaskumbura M, Beenaerts N, Gower D.J, Pethiyagoda R, Roelants K, Mannaert A, Wilkinson M, Bahir M.M, Manamendra-Arachchi K, Ng PKL, Schneider C.J, Oommen O.V, Milinkovitch.M.C (2004). Local endemism within the Western Ghats-sri Lanka biodiversity hotspot. Science. Oct 15; 306(5695): 479-81.

» Jancy M.G, Smita M, Kadalmani B, Girija R, Oommen O.V, Akbarsha M.A.(2005) Contribution of the secretory material of caecilian (Amphibia:Gymnophiona) male mullerian gland to motility of sperm: A study in Uraeotyphlus narayani J. Morphol; 263: 227-237.

» Vijayasree A S, Divya L, Sreejith P, Cyril J, Smita M, Oommen O V.(2005) Insulin regulates ionic metabolism in a fresh water teleost, Anabas testudineus (Bloch).Indian J. Exp Biol.;43: 702-709

» Smita M, Beyo R.S, Jancy M George, Akbarsha M A, Oommen O.V (2005) Seasonal Variation in Spermatogenic and Androgenic Activities in a Caecilian testis (Ichthyophis tricolor) J.  Zool. Lond; 267, 45-53.

» Smita M, Jancy M George, Akbarsha M A, Oommen O.V (2005) Ameboid Cells in Spermatogenic Cysts of  Caecilian Testis. J. Morphol; 263: 340-355.

» Bossuyt F, Meegaskumbura M, Beenaerts N, Gower DJ, Pethiyagoda R, Roelants K, Mannaert A, Wilkinson M, Bahir MM, Manamendra-Arachchi K, Ng PKL, Schneider CJ, Oommen OV, Milinkovitch. M.C. (2005). Biodiversity in Sri Lanka and the Western Ghats. Science 308,199.

» Hendrik M, Oommen O .V, Peter B, (2005) Skeletal development of the direct-  developing caecilian Gegeneophis ramaswamii (Amphibia: Gymnophiona: Caeciliidae) Zoomorphology 124: 171–188. 

» Sreejith P & Oommen O .V (2006) .Rapid regulatory effect of tri-iodothyronine(T3 ) on antioxidant enzyme activities in a fish Anabas testudineus (Bloch): Short – term in vivo & in vitro study. Indian J. Biochem & Biophy; 43: 119-122.

» Divya L, Vijayasree A S, Sreejith P, Beyo R S, Smita M, Oommen O V(2006).  Does melatonin have a time – dependent effect on brain and gill ionic metabolism in a teleost Anabas testudineus  (Bloch)? Indian J. Exp Biol. 44, 635-639 .

» S M Saumya, P Sreejith, A S Vijayasree, L Divya, M Manju & O V Oommen (2006)Tri-iodo thyronine regulates antioxidant enzyme activities in different cell fractions through a mechanism sensitive to actinomycin D in a teleost, Anabas testudineus (Bloch) Indian J. Exp Biol.  44, 640-646.

» Haruyo Ichikawa, Mangalam S. Nair, Yasunari Takada, D.B. Alan Sheeja, M.A. Suresh Kumar, Oommen V. O, and  Aggarwal B. B (2006) Isodeoxyelephantopin,  a novel sesquiterpene lactone, potentiates apoptosis, inhibits invasion, and abolishes osteoclastogenesis through suppression of Nuclear Factor-KB(NF-KB ) activation and NF-KB-regulated gene expression, Clin Cancer Res 12, 5910-5918.

» Beyo R S, Oommen O V & M A. Akbarsha (2006). Ultrstructural features of follicle cell oocyte interface during different stages of follicle cell in the caecilian Ichthyophis tricolor. J Endocrinol. Reprod.  10, 52-55.

» Beyo R S., P Sreejith, L Divya, Oommen O V, M A. Akbarsha (2007). Ultrastructural observations of previtellogenic ovarian follicles of the Caecilians Ichthyophis tricolor and Gegeneophis ramaswamii J. Morphol; 268, 329-342

» Beyo R.S, P Sreejith, L Divya,  Akbarsha M A, Oommen O.V (2007). Assembly of ovarian  follicles  in the  Caecilians Ichthyophis tricolor and Gegeneophis ramaswamii:  light and transmission electron microscopic  study.  Zygote 15, 199 – 213.

» P Sreejith, Beyo R S, L Divya, A S Vijayasree, M Manju & Oommen O V (2007). Triiodothyronine and melatonin influence antioxidant defense mechanism in a teleost, Anabas testudineus  (Bloch) : in vitro study. Indian J. Biochem.& Biophys. 44; 3,164-168.

» D J. Gower, M Dharne, G Bhatta, V Giri, R Vyas, V Govindappa, Oommen  O V. , J George, Y Schouche & M Wilkinson (2007). Remarkable genetic homogeneity in unstriped, long-tailed Ichthyophis (Amphibia: Gymnophiona: Ichthyophiidae) along 1500 km of the Western Ghats, India. J.  Zool. London 272, 266-275.

» R S Beyo, L Divya, Smita M, Oommen O V & M A Akbarsha (2008). Stages in follicle cell/oocyte interface during vitellogenesis in caecilians Ichthyophis tricolor and Gegeneophis ramaswamii: a transmission electron-microscopic study. Cell Tissue Res, 331:519–528, DOI 10.1007/s00441-007-0523-2

» P Sreejith & Oommen O V (2008). Tri-iodothyronine alters Superoxide dismutase     expression in a teleost, Anabas testudineus (Bloch): in vitro study. Indian J. Biochem & Biophys (in press).