Publications

Weaver EA, Ramachandran R (2020) Metformin attenuates steroidogenesis in ovarian follicles of broiler breeder hen. Reproduction, 160:1-14

Hanlon C, Ramachandran R, Zuidhof MJ, Bedecarrats GY (2020). Should I lay or should I grow? Photoperiodic versus metabolic cues in chickens. Front Physiol. 11:707

Hadley JA, Ocon-Grove OM, Ramachandran R (2020) Adiponectin is secreted by theca layer cells isolated from chicken ovarian follicles. Reproduction, 159:275-288

Tiwari A, Hadley JA, Ramachandran R (2020) Characterization of ascites-derived aldehyde dehydrogenase-positive ovarian cancer stem cells isolated from leghorn chickens. Poultry Science, 99:2203-2214

Ramachandran, R (2018) Chicken: Female Reproduction. Encyclopedia of Reproduction, 2nd Edition, Edited by Michael Skinner, Elsevier Inc
Tiwari A, Ocon-Grove OM, Hadley JA, Giles JR, Johnson PA, Ramachandran R (2015) Expression of adiponectin and its receptors is altered in epithelial ovarian tumors and ascites-derived ovarian cancer cell lines. International Journal of Gynecological Cancer. 25:399-406

Tiwari A, Hadley JA, Ramachandran R (2014) Aquaporin 5 expression is altered in ovarian tumors and ascites-derived ovarian tumor cells in the chicken model of ovarian tumor. Journal of Ovarian Research. 7:99

Ramachandran R (2014) Current and future reproductive technologies for avian species. Advances in Experimental Medicine and Biology, 752:23-31

Tiwari A, Hadley JA, Hendricks GL 3rd, Elkin RG, Cooper T, Ramachandran R (2013) Characterization of ascites-derived ovarian tumor cells from spontaneously occurring ovarian tumors of the chicken: evidence for E-cadherin upregulation. PLoS One 8:e57582.

Ramachandran R, Maddineni S, Ocón-Grove O, Hendricks G 3rd, Vasilatos-Younken R, Hadley JA (2013) Adiponectin signaling in chicken growth and reproduction, General and Comparative Endocrinology, 190:80-95.

Stuber EF, Verpeut J, Horvat-Gordon M, Ramachandran R, Bartell PA (2013) Differential regulation of adipokines may influence migratory behavior in the white-throated sparrow (Zonotrichia albicollis), PLoS ONE, 8(6): e59097.

Yuan P, Yu Y, Luo J, Tian F, Zhang H, Chang S, Ramachandran R, Song J (2012) Comparative study of lipoprotein metabolism in Marek's disease susceptible and resistant chickens. Poultry Science 91:2598-2605

Tiwari A, Krzysik-Walker SM, Ramachandran R (2012) Cloning and characterization of chicken Fat Mass and Obesity associated (Fto) gene: Fasting affects FTO expression. Domestic Animal Endocrinology, 42:1-10.

Krzysik-Walker SM, Hadley JA, Pesall JE, McFarland DM, Vasilatos-Younken R, Ramachandran R (2011) Nampt/visfatin/PBEF affects expression of myogenic regulatory factors and is regulated by interleukin-6 in chicken skeletal muscle cells. Comparative Biochemistry and Physiology, Part A. 159:413-421.

McFarlane HO, Joseph NT, Maddineni SR, Ramachandran R, Bédécarrats GY (2011) Development, validation, and utilization of novel antibody specific to the type III chicken gonadotropin-releasing hormone receptor. Domestic Animal Endocrinology, 40:110-118.

Giles JR, Elkin RG, Trevino LS, Urick ME, Ramachandran R, Johnson PA (2010) The Restricted Ovulator chicken: A unique animal model for investigating the etiology of ovarian cancer. International Journal of Gynecological Cancer, 20:738-744.

Ocón-Grove OM, Krzysik-Walker SM, Maddineni SR, Hendricks III GL, and Ramachandran R (2010) NAMPT (visfatin) in the chicken testis: influence of sexual maturation on cellular localization, plasma levels and gene and protein expression. Reproduction, 139:217-26.

Horvat-Gordon M, Praul CA, Ramachandran R, Bartell PA, Leach Jr RM (2010) Use of microarray analysis to study gene expression in the avian epiphyseal growth plate. Comparative Biochemistry and Physiology, Part D, 5:12-23.

Hendricks III GL, Hadley JA, Krzysik-Walker SM, Prabhu SK, Vasilatos-Younken R, Ramachandran R (2009) Unique profile of chicken adiponectin, a predominantly heavy molecular weight multimer, and relationship to visceral adiposity. Endocrinology, 150:3092-3100.

Bédécarrats GY, McFarlane H, Maddineni, SR, Ramachandran R (2009) Gonadotropin-inhibitory hormone receptor signaling and its impact on reproduction in chickens. General and Comparative Endocrinology, 163:7-11.

Ocón-Grove OM, Krzysik-Walker SM, Maddineni SR, Hendricks III GL, and Ramachandran R (2008) Adiponectin and its receptors are expressed in the chicken testis: influence of sexual maturation on testicular ADIPOR1 and ADIPOR2 mRNA abundance. Reproduction, 136:627-638.

Maddineni S, Ocón-Grove OM, Krzysik-Walker SM, Hendricks III GL, Ramachandran R (2008) Gonadotropin-inhibitory hormone (GnIH) receptor expression in the chicken pituitary gland: Potential influence of sexual maturation and ovarian steroids. Journal of Neuroendocrinology, 20:1078-1088.

Maddineni S, Ocón-Grove OM, Krzysik-Walker SM, Hendricks III GL, Ramachandran R (2008) Gonadotropin-inhibitory hormone (GnIH) receptor gene is expressed in the chicken ovary: Potential role of GnIH in follicular maturation. Reproduction, 135:267-274.

Krzysik-Walker SM, Ocón-Grove OM, Hendricks III GL, Ramachandran R (2008) Is visfatin an adipokine or myokine? Evidence for greater visfatin expression in skeletal muscle than abdominal fat in chickens. Endocrinology, 149:1543-1550.

Krzysik-Walker SM, Ocón-Grove OM, Maddineni SR, Hendricks III GL, and Ramachandran R (2007) Identification of calcitonin expression in the chicken ovary: Influence of gonadal steroids. Biology of Reproduction, 77:626-635.

Maddineni SR, Krzysik-Walker, SM, Ocón-Grove OM, Hendricks III GL, and Ramachandran R (2007) Calcitonin is expressed in the chicken pituitary gland: Influence of gonadal steroids and sexual maturation. Cell and Tissue Research, 327:521-528.

Ramachandran R, Ocón-Grove OM, Metzger SL (2007). Molecular cloning and tissue expression of chicken AdipoR1 and AdipoR2 complementary deoxyribonucleic acids. Domestic Animal Endocrinology, 33:19-31.

Ocón-Grove OM, Maddineni SR, Hendricks III GL, Elkin RG, Proudman JA, Ramachandran R (2006) Pituitary progesterone receptor expression and plasma gonadotrophin concentrations in the reproductively dysfunctional mutant restricted ovulator chicken. Domestic Animal Endocrinology, 32:201-215.

Proszkowiec-Weglarz M, Richards MP, Ramachandran R, McMurtry JP (2006) Characterization of the AMP-activated protein kinase pathway in chickens. Comparative Biochemistry and Physiology, Part B, 143:92-106.

Maddineni SR, Metzger SM, Ocon OM, Hendricks III GL, Ramachandran R (2005) Adiponectin gene is expressed in multiple tissues in the chicken: food deprivation influences adiponectin messenger ribonucleic acid expression. Endocrinology, 146:4250-4256.

Hollon TR, Bek MJ, Lachowicz JE, Ariano MA, Mezey E, Ramachandran R, Wersinger SR, Soares-da-Silva P, Liu ZF, Grinberg A, Drago J, Young WS, 3rd, Westphal H, Jose PA, Sibley DR (2002) Mice lacking D5 dopamine receptors have increased sympathetic tone and are hypertensive. Journal of Neuroscience, 22:10801-10810.

Ramachandran R, Kuenzel WJ, Proudman JA (2001) Increased proliferative activity and programmed cellular death in the turkey hen pituitary gland following interruption of incubation behavior. Biology of Reproduction, 64:611-618.

Weatherly KL, Ramachandran R, Strange H, Waite KL, Storrie B, Proudman JA, Wong EA (2001) The turkey transcription factor Pit-1/GHF-1 can activate the turkey prolactin and growth hormone gene promoters in vitro but is not detectable in lactotrophs in vivo. General and Comparative Endocrinology, 123:244-253.

Ramachandran R, Kuenzel WJ, Buntin JD, Proudman JA (2000) Identification of growth-hormone- and prolactin-containing neurons within the avian brain. Cell and Tissue Research, 299:371-383.

Ramachandran R, Solow R, Proudman JA, Kuenzel WJ (1998) Identification of mammosomatotrophs in the turkey hen pituitary: increased abundance during hyperprolactinemia. Endocrinology, 139:781-786.

Ramachandran R, Proudman JA, Kuenzel WJ (1996) Changes in pituitary somatotroph and lactotroph distribution in laying and incubating turkey hens. General and Comparative Endocrinology, 104:67-75.

Ramachandran R, Proudman JA, Kuenzel WJ (1995) Changes in pituitary somatotrophs and lactotrophs associated with ovarian regression in the turkey hen (Meleagris gallopavo). Comparative Biochemistry Physiology, Part C, 112:327-334.