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Chairman, Board of study in Biochemistry and Molecular Biology, Postgraduate Institute of Science, University of Peradeniya- 
2014 SUSRED Award, National Science Foundation, Sri Lanka
2013 Presidential awards for Research
2002-2006 Japanese Government
Monbukagakusho Scholarship for PhD Studies
2007 to dateBiology of Reproduction
Yoshiko Kondo, Sanath Rajapakse, Katsueki Ogiwara (2023). Involvement of cathepsin L in the degradation and degeneration of postovulatory follicle of the medaka ovary . Biology of Reproduction, oad116.
DOI: https://doi.org/10.1093/biolre/ioad116
Molecular Biology Reports
Pavithra Madamarandawala, Sanath Rajapakse, Bandu Gunasena, Dushantha Madegedara, Dhammika Magana-Arachchi (2023). A host blood transcriptional signature differentiates multi-drug/rifampin-resistant tuberculosis (MDR/RR-TB) from drug susceptible tuberculosis: a pilot study. Molecular Biology Reports, 50(4): 3935-3943.
Journal of Science
HPKU Jayathilake, Kana Yamada, JMCB Jayasinghe, Sanath Rajapakse (2023). rbcL nucleotide sequence-based phylogenetic analysis of Nepenthes distillatoria L. . Journal of Science, 4 (1): 21-26.
Ceylon Journal of Science
S. Saseevan, S. Rajapakse, D. N. Magana-Arachchi (2022). RNA extraction from urine sediment: A cost-effective protocol for gene expression analysis in renal pathology. Ceylon Journal of Science, 51(5): 531–539.
DOI: http://doi.org/10.4038/cjs.v51i5.8080
ACS Omega
Sandhuli S Hettiarachchi, Yohanka Perera, Sashiprabha P Dunuweera, Asiri N Dunuweera, Sanath Rajapakse, Rajapakse Mudiyanselage Gamini Rajapakse (2022). Comparison of antibacterial activity of nano curcumin with bulk curcumin. ACS Omega, : (doi Page 11 of 31).
DOI: https://doi.org/10.1021/acsomega.2c05293
Journal of Sol-Gel Science and Technology
CA Thennakoon, RBSD Rajapakshe, RMG Rajapakse, Sanath Rajapakse (2022). Antistain and durable superhydrophobic/antistatic dual functionality surface for fabric materials based on F-ZnO/TiO2 composite. Journal of Sol-Gel Science and Technology, 101: 529–538.
Environmental Research
DND Liyanage, Saranga Diyabalanage, S.P. Dunuweera, Sanath Rajapakse , R.M. G. Rajapakse, Rohana Chandrajith (2022). Significance of Mg-hardness and fluoride in drinking water on chronic kidney disease of unknown etiology in Monaragala, Sri Lanka. Environmental Research, 203: 11177.
Gene Reports
S.N.J. Pathirana , D.A.S. Elvitigala, C.M. Nanayakkara, Prashanth Suravajhala, Sanath Rajapakse , G.H.C.M. Hettiarachchi, N.V. Chandrasekharan (2022). Identification and in-silico analysis of a novel restriction enzyme coding gene from Pseudomonas anguilliseptica. Gene Reports, 26: 101487.
Ceylon Journal of Science
S Saseevan, S Rajapakse, DN Magana-Arachchi (2022). RNA extraction from urinesediment: A cost-effective protocol for gene expression analysis in renal pathology. Ceylon Journal of Science, 51: 531-539.
DOI: https://doi.org/10.4038/cjs.v51i5.8080
Comparison of antibacterial activity of nano curcumin with bulk curcumin
Sandhuli S Hettiarachchi, Yohanka Perera, Sashiprabha P Dunuweera, Asiri N Dunuweera, Sanath Rajapakse, Rajapakse Mudiyanselage Gamini Rajapakse (2022). ACS Omega. Comparison of antibacterial activity of nano curcumin with bulk curcumin, .
DOI: https://doi.org/10.1021/acsomega.2c05293
Journal of Sol-Gel Science and Technology
CA Thennakoon, RBSD Rajapakshe, RMG Rajapakse, Sanath Rajapakse (2022). Anti-stain and durable superhydrophobic/antistatic dual functionality surface for fabric materials based on F-ZnO/TiO<sub>2</sub> composite. Journal of Sol-Gel Science and Technology, 101: 529–538.
Environmental Research
DND Liyanage, Saranga Diyabalanage, S.P. Dunuweera, Sanath Rajapakse , R.M. G. Rajapakse, Rohana Chandrajith. (2022). Significance of Mg-hardness and fluoride in drinking water on chronic kidney disease of unknown etiology in Monaragala, Sri Lanka . Environmental Research, 203: 111779.
Ceylon Journal of Science
AYP Perera, SDSS Sooriyapathirana, Sanath Rajapakse, JAMS Jayatilake (2021). Effect of gut microbiota on immune checkpoint inhibitor (ICI) based cancer immunotherapy. Ceylon Journal of Science, 50 (4): 423-438.
Journal of the National Science Foundation of Sri Lanka
CS Hettiarachchi, CL Abayasekara, P Saravana Kumar, S Rajapakse, SA Kulasooriya. EMHGS Ekanayake, RKGK Kumara, HMAC Gunaratne. (2021). Nitrogen fertiliser replacement by single and multi-strain rhizobial inoculants for black gram, green gram and soybean cultivation in Sri Lanka. Journal of the National Science Foundation of Sri Lanka, 49 (3): 323 – 336.
Journal of Dry Zone Agriculture
PTMKC Tennakoon, S Rajapakse (2021). Rhizobia inhabiting Clitoria ternatea L. in Anuradhapura district, Sri Lanka: An assessment of stress tolerance and genetic diversity. Journal of Dry Zone Agriculture, 7(1): 1-21.
International Journal of Nanoscience
RMSI Rajapakse, Sanath Rajapakse (2021). Single-Walled Carbon Nanotube-Based Biosensors for Detection of Bronchial Inflammation. International Journal of Nanoscience, 20 (4).
DOI: https://dx.doi.org/10.1142/S0219581X21300029
Ceylon Journal of Science
MF Fouz, AS Sumanarathne, VN Seneviratne, S Rajapakse (2021). Investigation of enhancement in thermal stability of trypsin in modified Mg/Al layered double hydroxides. Ceylon Journal of Science, 50 (1): 29-28.
International Journal of Oral Biology
MADKS Mallikaarachchi, Sanath Rajapakse, KSND Gunawardhana, JAMS Jayatilake (2021). A comparative study of the prevalence of Helicobacter pylori in the oral biofilms of a group of dental and non dental undergraduates from Sri Lanka. International Journal of Oral Biology, 46: 60-65 (Page 12 of 31).
DOI: https://doi.org/10.11620/IJOB.2021.46.1.60
ENGINEER
IW Kularathne, CA Gunathilaka, AC Ratnaweera, CS Kalpage, S Rajapakse, P Gamage (2021). Optimization of Fermentation Process Parameters for Bioethanol Production from Sri Lankan Overripe Fruits. ENGINEER, LIV (1): 77-86.
Sri Lanka Journal of Food and Agriculture
SAN Nandadeva, SMNS Samarakoon, Sanath Rajapakse (2020). Rhizobia inhabiting Gliricidia sepium in Puttalam District, Sri Lanka. Assessment of stress tolerance and genetic diversity. Sri Lanka Journal of Food and Agriculture, 6 (1) : 23-36.
DOI: http://doi.org/10.4038/sljfa.v6i1.79
Ceylon Journal of Science
IW Kularathna, AC Ratnaweera, CS Kalpage, S Rajapakse, CA Gunathilaka (2020). Optimization and kinetic parameter estimation of bioethanol production from freely available Sri Lankan fruits in batch fermentation. Ceylon Journal of Science, 49 (3): 283-291.
Sri Lankan Journal of Agriculture and Ecosystems
VRRU Udapamunuwa, PWI Nawanjana, S Rajapakse (2020). Stress tolerant rhizobia inhabiting the root nodules of Gliricidia sepium from selected locations of Anuradhapura district Sri Lanka. Sri Lankan Journal of Agriculture and Ecosystems, 2 (1) : 34 -54.
Tropical Plant Research
PMH Sandamali, SP Senanayake, S Rajapakse. (2020). Morphometrics of selected Dendrobium spp. (Orchidaceae) in Sri Lanka. Tropical Plant Research, 7(1): 149–157.
Tropical Plant Research
PMH Sandamali, SP Senanayake, Sanath Rajapakse (2020). Phylogenetic relationships of selected Sri Lankan Orchids based on Internal Transcribed Spacer (ITS) sequence analysis. Tropical Plant Research, 7(1): 76–85.
Ceylon Journal of Science
SMNS Samarakoon, S. Rajapakse (2020). Identification of stress tolerant rhizobial strains inhabiting Gliricidia sepium in the Polonnaruwa district, Sri Lanka. Ceylon Journal of Science, 49 (1): 37-47..
DOI: http://doi.org/10.4038/cjs.v49i1.7704
Biomass Conversion and Biorefinery
Indrani W. Kularathne, Chamila Gunathilake, Bhagya S Yatipanthalawa, Chandrakantha S. Kalpage, Asanga C. Rathneweera, Sanath Rajapakse (2019). Production of green energy – ethanol dehydration using rice straw, rice husk and castor oil. Biomass Conversion and Biorefinery, .
DOI: https://doi.org/10.1007/s13399-019-00560-9
International Journal of Renewable Energy Research
IW Kularathne, CA Gunathilake, AC Rathneweera, CS Kalpage, S. Rajapakse (2019). The Effect of Use of Biofuels on Environmental Pollution - A Review. International Journal of Renewable Energy Research, 09 (03): 1355-1367.
Ceylon Journal of Science
RWKM Senevirathna, VN Seneviratne, Sanath Rajapakse (2019). Chitinases from pitcher fluid of Nepenthes distillatoria. Ceylon Journal of Science , 48(3): 243-249.
DOI: http://doi.org/10.4038/cjs.v48i3.7648
Environmental Geochemistry and Health
Saranga Diyabalanage, Ashoka Dangolla, Chandima Mallawa, Sanath Rajapakse, Rohana Chandrajith (2019). Bioavailability of selenium (Se) in cattle population in Sri Lanka based on qualitative determination of glutathione peroxidase (GSH-Px) activities. Environmental Geochemistry and Health, : Page 13 of 31.
DOI: https://doi.org/10.1007/s10653- 019-00395-3(0123456789
Ceylon Journal of Science
MGKP Dayarathne, Sanath Rajapakse (2019). Preliminary investigations on the serine and aspartic protease inhibitors from Nothopegia beddomei. Ceylon Journal of Science, 48(2): 185-189.
DOI: http://doi.org/10.4038/cjs.v48i2.7623
Sri Lankan Journal of Infectious Diseases
WMDA Wijesundara, RGSC Rajapakse, JAMA Jayatilake, JAMS Jayatilake (2019). A preliminary study of mecA gene expression and methicillin resistance in staphylococci isolated from the human oral cavity. Sri Lankan Journal of Infectious Diseases, 9(1): 42-48.
DOI: http://dx.doi.org/10.4038/sljid.v9i1.8232
American Journal of Applied Chemistry
Rukshika Shalani Hewawasam, Sisira Weliwegamage, Sanath Rajapakse, Subramanium Sotheeswaran. (2019). Isolation and Characterization of an Entophytic Ethanol Resistant Bacterium from Sap of Saccharum officinarum for Efficient Fermentation. American Journal of Applied Chemistry, 7(2): 42- 46.
DOI: https://doi.org/10.11648/j.ajac.20190702.11
The Journal of Agricultural Sciences
PWI Nawanjana, Sanath Rajapakse. (2019). Physiological Characterization and Genetic Diversity Assessment of the Rhizobial Populations Inhabiting Gliricidia sepium in selected locations of Ampara District, Sri Lanka. The Journal of Agricultural Sciences, 14 (1): pp.34–48.
DOI: http://doi.org/10.4038/jas.v14i1.8455
Global Ecology and Conservation
Nayana Wijayathilaka, Gayani Senevirathne, Champika Bandara, Sanath Rajapakse, Rohan Pethiyagoda, Madhava Meegaskumbura. (2018). Integrating Bioacoustics, DNA barcoding and niche modeling for frog conservation - The threatened balloon frogs of Sri Lanka. Global Ecology and Conservation, .
DOI: https://doi.org/10.1016/J.gecco.2018.e00496
Journal of Nanomaterials & Molecular Nanotechnology
RBSD Rajapakshe, CA Thennakoon, AMA Zajid, RMG Rajapakse, Sanath Rajapakse. (2018). Multi-Functional Cotton Fabrics with Self-Assembled TiO2 Nanoparticle Seed/TiO2 Nanorod/ZnO Nanoparticle/ Stearic Acid Nanotechnological Architectures. Journal of Nanomaterials & Molecular Nanotechnology, 7.2.
DOI: https://doi.org/10.4172/2324-8777.1000244
Journal of the National Science Foundation of Sri Lanka
YC Aluwihare, MDM Chamikara, DRRP Dissanayake, NNH Karannagoda, AGMLK Dayananda, DN Sirisena, WLG Samarasinghe, RGSC Rajapakse, SDSS Sooriyapathirana. (2017). DNA sequence polymorphophism of Pup1 linked k20-1 STS region can be effectively used in molecular breeding of rice for phosphorous deficiency tolerance. Journal of the National Science Foundation of Sri Lanka, (in press).
Ceylon Journal of Science.
L.T. Ranaweera, S. Rajapakse and S.D.S.S. Sooriyapathirana. (2017). Molecular mechanisms of reversing neural degeneration by retinoic acid, a major derivative of vitamin A. Ceylon Journal of Science., 46(3): 5-20 .
Taiwania
R.P.V.G. Subhashi W. Rajapakshe, K.M.G. Gehan Jayasuriya, Sanath Rajapakse, D.H.P.Peramunugama. (2017). Seed germination and predation of the tropical monocarpic palm tree Corypha umbraculifera. Taiwania, 62(2): 129‒138 .
SpringerPlus
S. Diyabalanage, T Nawarathna, HTK Abeysundara, S Rajapakse, R Chandrajith. (2016). Trace elements in native and improved paddy rice from different climatic regions of Sri Lanka: implications for public health. SpringerPlus, 5: 1864.
DOI: https://doi.org/10.1186/s40064-016-3547-9
Journal of Faculty of Graduate Studies
N. Jayarathna, S.P. Senanayake, S. Rajapakse, L.R. Jayasekera, P. Paranagama. (2016). Interspecific relationship of Piper species in Sri Lanka as revealed by DNA barcode ITS. Journal of Faculty of Graduate Studies, University of Kelaniya, Sri Lanka.: 37- 47 .
The Journal of Agricultural Sciences
S.P.N.C. Jayarathna, S.P. Senanayake , S. Rajapakse, L.R. Jayasekera. (2016). Phenetic Variation and Preliminary Phytochemical Screening of Piper Species in Sri Lanka. The Journal of Agricultural Sciences, 11 (3): 155-163 .
International Journal of Scientific & Engineering Research
J.G.B. Epakande, R.M.G. Rajapakse, R.B.S.D. Rajapakshe, C.A. Thennakoon, Sanath Rajapakse. (2016). Antibiotic impregnated cotton gauzes for topical antibiotic treatment. International Journal of Scientific & Engineering Research, 7, (7): 266-273 .
British Journal of Pharmaceutical Research
HKI Perera, BDS Jayawardana, S Rajapakse. (2016). Heat stable protease inhibitors from Sesbania grandiflora and Terminalia catappa. British Journal of Pharmaceutical Research, 11 (4): 1-9 .
The Journal of Agricultural Sciences
HMPD. Herath, MDM. Chamikara, DRRP. Dissanayake, MDMIM. Dissanayake, M. Ishan, S. Rajapakse and SDSS. Sooriyapathirana. (2016). A comparative assessment of the antibacterial activity in fruit juice of Sri Lankan sweet orange cultivars vis a vis sour orange. The Journal of Agricultural Sciences, 11 (1): 13-23 .
Fermentation Technology
Rukshika Shalani Hewawasam, Chandani Udawatta, Sisira Kumara Weliwegamage, Subramanium Sotheeswaran, Sanath Rajapakse. (2015). Immobilization of selected microbes at some solid supports for enhanced fermentation process. Fermentation Technology, 4: 115.
DOI: https://doi.org/10.4172/2167-7972.1000115
Ceylon Journal of Science (Bio.Sci)
YC Aluvihare, MDM Chamikara, DRRP Dissanayake, NNK Karannagoda, DN Sirisena, WLG Samarasinghe, S Rajapakse, SDSS sooriyapathirana. (2015). Validation of K46, a Pup-1 lnked marker, usinga selection of Sri Lankan rice (Oryza sativa L) germplasm for marketr assisted selection towards phosphorous deficiency tolerance. Ceylon Journal of Science (Bio.Sci), 44 (2): 45-54 .
Ceylon Journal of science (Bio.Sci)
AIS Priyadarshan, SP Senanayake, MP Jayatilleke, S Rajapakse. (2015). Preliminary phytochemical screening of some Tephrosia Spp. (Family Fabaceae) in Sri Lanka. Ceylon Journal of science (Bio.Sci), 44 (2): 101-103 .
Biology of Reproduction
Katsueki Ogiwara, Akane Hagiwara, Sanath Rajapakse, Takayuki Takahashi. (2015). The role of urokinase plasminogen activator and plasminogen activator inhibitor 1 in follicle rupture during ovulation in the teleost medaka. Biology of Reproduction, 92 (1) 10: 1-17 .
Zoological Science
Sanath Rajapakse, Katsueki Ogiwara, Takayuki Takahashi. (2014). Characterization and expression of trypsinogen and of trypsin in medaka testis. Zoological Science, 31(12): 840-848 .
Wayamba Journal of Animal Science
PI Rajapaksha, MBD Lakmali, SWMB Dunuwille, P Janaththani1, S Rajapakse, MPB. Wijayagunawardane, SP Kodithuwakku, SDSS Sooriyapathirana. (2014). A DNA fingerprinting scheme to establish the identity of semen samples of cattle breeds in artificial insemination programs of Sri Lanka. Wayamba Journal of Animal Science, Number 1396194458: 947-954 .
Journal of Reinforced Plastics and Composites
Boon Peng Chang, Hazizan Md Akil, Ramdziah Bt Md Nasir, IMCCD .Bandara, Sanath Rajapakse. (2014). The Effect of ZnO Nanoparticles on the Mechanical, Tribological and Antibacterial Properties of UHMWPE. Journal of Reinforced Plastics and Composites, 33: 674-686 .
Journal of Science of the University of Kelaniya
AIS Priyadarshan, SP Senanayake, MP Jayathilleke, S Rajapakse . (2014). Intraspecific variation of Flueggea leucopyrus Willd. Grown in Sri Lanka and establishing a suitable propagation system. Journal of Science of the University of Kelaniya, 9: 15- 25 .
Journal of Science of the University of Kelaniya
AIS Priyadarshan, SP Senanayake, MP Jayathilleke, S Rajapakse . (2014). Development of suitable propagation systems for Tephrosia spp. in Sri Lanka. Journal of Science of the University of Kelaniya, 9: 39-45 .
Journal of Applied Polymer Science
WGIU Rathnayake, H Ismail, A Baharin, IMCCD Bandara, Sanath Rajapakse. (2014). Enhancement of the Antibacterial Activity of Natural Rubber Latex Foam by the Incorporation of Zinc Oxide Nanoparticles. Journal of Applied Polymer Science, . (Published online.
DOI: https://doi.org/10.1002/APP.39601
Ceylon Journal of Science (Physical Sciences)
AGND Darsanasiri, WGIU Rathnayake, Sanath Rajapakse, RMG Rajapakse. (2013). In-situ Deposition of Silver Nanoparticles of Different Colors on Cotton for Imparting Antibacterial and Antifungal Properties. Ceylon Journal of Science (Physical Sciences), 17: 31-39 .
Colloids and Surfaces A: Physicochemical and Engineering Aspects
Srimala Perera, Bharat Bhushan,, Rathnayake Bandara, Gamini Rajapakse, Sanath Rajapakse, Chaturanga Bandara. (2013). Morphological, antimicrobial durability and physical properties of untreated and treated textiles using silver-nanoparticles,. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 436: 975-989 .
Polymer-Plastics Technology and Engineering
Indrajith Rathnayake, Hanafi Ismail, Baharin Azahari, Chathuranga Bandara, Sanath Rajapakse. (2013). Novel method of incorporating silver nanoparticles into natural rubber latex foam. Polymer-Plastics Technology and Engineering, 52: 885-891 .
PLoS ONE
Katsueki Ogiwara, Chika Fujimori, Sanath Rajapakse, Takayuki Takahashi. (2013). Characterization of Luteinizing Hormone and Luteinizing Hormone Receptor and Their Indispensable Role in the Ovulatory Process of the Medaka. PLoS ONE, 8(1): e54482.
DOI: https://doi.org/10.1371/journal.pone.0054482
Journal of the National Science Foundation of Sri Lanka
Sanath Rajapakse, Prabasheeni Iddamalgoda, Rukmal Ratnayake, BM Ratnayake Bandara, DSA Wijesundara and Veranja Karunaratne. (2012). Evaluation of species limits of Hortonia by DNA barcoding. Journal of the National Science Foundation of Sri Lanka, 40 (4): 345-349 .
Polymer-Plastics Technology and Engineering
Indrajith Rathnayake, Hanafi Ismail, Baharin Azahari, Nalin Dhammika Darsanasiri, Sanath Rajapakse. (2012). Synthesis and Characterization of Nano Silver Incorporated Natural Rubber Latex Foam. Polymer-Plastics Technology and Engineering, 51 (6): 605-611 .
Polymer Testing
WGIU Rathnayake, H Ismail, A Baharin, AGND Darsanasiri and Sanath Rajapakse. (2012). Synthesis and Characterization of Nano Silver Based Natural Rubber Latex Foam for Imparting Antibacterial and Anti-Fungal Properties. Polymer Testing, 31: 586-592 .
Molecular and Cellular Endocrinology
Chika Fujimori, Katsueki Ogiwara, Akane Hagiwara, Sanath Rajapakse, Atsushi Kimura and Takayuki Takahashi. (2011). Expression of cyclooxygenase-2 and prostaglandin receptor EP4b mRNA in the ovary of the medaka fish, Oryzias latipes: Possible involvement in ovulation. Molecular and Cellular Endocrinology, 332 (1-2): 67-77 .
Zoological Science
Sanath Rajapakse and Takayuki Takahashi. (2007). Expression and enzymatic characterization of human kallikrein 14. Zoological Science, 24: 774-780 .
Molecular Reproduction and Development
Sanath Rajapakse, Noriko Yamano, Katsueki Ogiwara, Kensaku Hirata, Sumio Takahashi and Takayuki Takahashi. (2007). Estrogen dependant expression of the tissue kallikrein gene (Klk1) in the mouse uterus and its implications for endometrial tissue growth. Molecular Reproduction and Development, 74: 1053-1063 .
Zoological Science
30. Sanath Rajapakse, Katsueki Ogiwara, Noriko Yamano, Atsushi Kimura, Kensaku Hirata, Sumio Takahashi and Takayuki Takahashi. (2006). Characterization of mouse tissue kallikrein 5. Zoological Science, 23: 963-968 .
FEBS letters
Sanath Rajapakse, Katsueki Ogiwara, Naoharu Takano, Akihiko Moriyama and Takayuki Takahashi. (2005). Biochemical characterization of human kallikrein 8 and its possible involvement in the degradation of extracellular matrix proteins．. FEBS letters, 579: 6879-6884 .
Current Protein and Peptide Science
Kenji Takahashi, Senarath BP Athauda, Koji Matsumoto, Sanath Rajapakshe, Masayuki Kuribayashi, Masaki Kojima, Nobuko Kubomura, Akihiro Iwamatsu, Chiaki Shibata, and Hideshi Inoue. (2005). Nepenthesin, a unique member of a novel subfamily of aspartic proteinases: enzymatic and structural characteristics. Current Protein and Peptide Science, 6: 513-525 .
Biochemical Journal
Senarath BP Athauda, Koji Matsumoto, Sanath Rajapakshe, Masayuki Kuribayashi, Masaki Kojima, Nobuko Kubomura, Akihiro Iwamatsu, Chiaki Shibata, Hideshi Inoue and Kenji Takahashi. (2004). Enzymic and structural characterization of nepenthesin, a unique member of a novel subfamily of aspartic proteinases. Biochemical Journal, 381: 295-306 .
Molecular Reproduction and Development
Junji Ohnishi, Jyunko Yokota, RGSC Rajapakse, Eriko Ohnishi, Takayuki Kudo, Shin-Ichiro Wada and Takayuki Takahashi. (2004). Activity of an enzyme converting single chain tissue type plasminogen activator to the two-chain form in preovulatory human follicular fluid. Molecular Reproduction and Development, 67: 178-185 .