P
Puranjan Das
Researcher at University of Calcutta
Publications - 5
Citations - 27
Puranjan Das is an academic researcher from University of Calcutta. The author has contributed to research in topics: Human chorionic gonadotropin & Oocyte. The author has an hindex of 3, co-authored 5 publications receiving 20 citations.
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In vitro induction of oocyte maturation and steroidogenesis by gonadotropins, insulin, calcitonin and growth factor in an estuarine flat head grey mullet, Mugil cephalus L.
TL;DR: DHP is the most potent inducer of oocyte maturation in Indian estuarine flat head grey mullet and Interplay of several hormones (hCG, LH, and probably E2 and testosterone) and IGF-I on oocytes maturation is suggested in the mullet.
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Circannual changes in morphological, ultrastructural and hormonal activities of the ovary of an estuarine grey mullet, Mugil cephalus L.
TL;DR: It is concluded that FSH, PRL, E2 and testosterone trigger oocyte growth in pre-breeding, and LH and DHP cause further growth and oocyte maturation in breeding.
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The role of some extra-gonadal hormones on the circannual ovarian cycle of the flat head grey mullet, Mugil cephalus L.
TL;DR: All the extra-gonadal hormones, except pineal, have a role in regulation of circannual ovarian cycle in the flat head grey mullet, indicating negative role of these hormones especially on oocyte growth, vitellogenesis and oocyte maturation in the mullet.
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Participation of Phosphatidylinositol-3 Kinase Signalling in Human Chorionic Gonadotropin, Bovine Insulin (B-Insulin) and Human-Insulin-Like Growth Factor-I Induced Oocyte Maturation and Steroidogenesis in the Grey Mullet, Mugil Cephalus.
Puranjan Das,Indraneel Saha,Abhijit Chatterjee,K Pramanick,Suman Chakraborty,Aniruddha Maity,S Bhowal,D Pradhan,Dilip Mukherjee,B. R. Maiti +9 more
TL;DR: In this article, the role of hormones and growth factors on steroidogenesis and oocyte maturation was investigated using specific inhibitors, Wortmannin for phosphatidylinositol-3 (PI3) kinase, trilostane for 3β-hydroxysteroid dehydrogenase, 1-octanol and 1-heptanol for gap junctions, actinomycin D for transcription and cycloheximide for translation of signal molecules.
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Circadian rhythms of gonadal and extra-gonadal hormonal and glycemic profiles during the breeding phase of the ovarian cycle of Indian estuarine grey mullets, Mugil cephalus L.
TL;DR: Environmental factor, such as photoperiod, is likely to be responsible for the induction of circadian rhythms of hormones and consequently on blood glucose rhythms via hypothalamic SCN, pineal and retino-hypophysial tract in the mullet.