Highlights:

Highlights
Biol Reprod 2007 77: 189. [Full Text] [PDF]  

Embryo:

Keisuke Edashige, Satoshi Ohta, Mitsunobu Tanaka, Tatsunaga Kuwano, Delgado M. Valdez, Jr., Takao Hara, Bo Jin, Sei-ichi Takahashi, Shinsuke Seki, Chihiro Koshimoto, and Magosaburo Kasai

The Role of Aquaporin 3 in the Movement of Water and Cryoprotectants in Mouse Morulae
Biol Reprod 2007 77: 365-375. [Abstract] [Full Text] [PDF]  

Summary: Water and cryoprotectants move through aquaporin 3 in mouse morulae

Female Reproductive Tract:

Xiaoping Zhang, Cheng Zhu, Haiyan Lin, Qing Yang, Qizhi Ou, Yuchun Li, Zhong Chen, Paul Racey, Shuyi Zhang, and Hongmei Wang

Wild Fulvous Fruit Bats (Rousettus leschenaulti) Exhibit Human-Like Menstrual Cycle
Biol Reprod 2007 77: 358-364. [Abstract] [Full Text] [PDF]  

Summary: Wild fulvous fruit bats menstruate in a similar way to humans and may be useful non-primate animal models to study menstruation and menstrual dysfunction

Gamete Biology:

Nir Etkovitz, Sara Rubinstein, Limor Daniel, and Haim Breitbart

Role of PI3-Kinase and PI4-Kinase in Actin Polymerization During Bovine Sperm Capacitation
Biol Reprod 2007 77: 263-273. [Abstract] [Full Text] [PDF]  

Summary: Actin polymerization during sperm capacitation depends on PI4-kinase activity and is independent of PI3-kinase activity

J.L. Fitzpatrick, J.K. Desjardins, N. Milligan, R. Montgomerie, and S. Balshine

Reproductive-Tactic-Specific Variation in Sperm Swimming Speeds in a Shell-Brooding Cichlid
Biol Reprod 2007 77: 280-284. [Abstract] [Full Text] [PDF]  

Summary: In a fish species characterized by four alternative male reproductive tactics, sperm from males performing sneak fertilizations swim faster than sperm from males adopting other reproductive tactics

Tanya Harris, Becky Marquez, Susan Suarez, and John Schimenti

Sperm Motility Defects and Infertility in Male Mice with a Mutation in Nsun7, a Member of the Sun Domain-Containing Family of Putative RNA Methyltransferases
Biol Reprod 2007 77: 376-382. [Abstract] [Full Text] [PDF] [Supplemental Data]  

Summary: An ENU-induced male infertility mutation in mice was traced to Nsun7, which encodes a putative RNA methyltransferase, resulting in decreased progressive motility and a midpiece mitochondrial defect

Mechanisms of Hormone Action:

Randy L. Bogan and Gordon D. Niswender

Constitutive Steroidogenesis in Ovine Large Luteal Cells May Be Mediated by Tonically Active Protein Kinase A
Biol Reprod 2007 77: 209-216. [Abstract] [Full Text] [PDF]  

Summary: A novel assay that quantifies concentrations and relative phosphorylation states of steroidogenic acute regulatory protein provided evidence that constitutive steroidogenesis in ovine large luteal cells is mediated by tonically active PKA

Minireviews:

D. Claire Wathes, D. Robert E. Abayasekara, and R. John Aitken

Polyunsaturated Fatty Acids in Male and Female Reproduction
Biol Reprod 2007 77: 190-201. [Abstract] [Full Text] [PDF]  

Summary: Polyunsaturated fatty acids (PUFAs) can affect reproduction through changes to prostaglandin and steroid synthesis and membrane properties of the gametes, but conclusive evidence that dietary consumption of particular PUFAs improves aspects of fertility is lacking.

Ovary:

O.J. Ginther, E.L. Gastal, M.O. Gastal, M.A.R. Siddiqui, and M.A. Beg

Relationships of Follicle Versus Oocyte Maturity to Ultrasound Morphology, Blood Flow, and Hormone Concentrations of the Preovulatory Follicle in Mares
Biol Reprod 2007 77: 202-208. [Abstract] [Full Text] [PDF]  

Summary: Follicular-fluid estradiol, progesterone, and the IGF system are associated with final oocyte maturation but not with follicular maturation.

Matthew C. Russell, Robert G. Cowan, Rebecca M. Harman, Ashleigh L. Walker, and Susan M. Quirk

The Hedgehog Signaling Pathway in the Mouse Ovary
Biol Reprod 2007 77: 226-236. [Abstract] [Full Text] [PDF]  

Summary: Components of the hedgehog cell signaling pathway are expressed in the mouse ovary and modulate granulosa cell proliferation and steroidogenesis

K.P. Jones, L.C. Walker, D. Anderson, A. Lacreuse, S.L. Robson, and K. Hawkes

Depletion of Ovarian Follicles with Age in Chimpanzees: Similarities to Humans
Biol Reprod 2007 77: 247-251. [Abstract] [Full Text] [PDF]  

Summary: The rate of decline in primordial follicle numbers in chimpanzee ovaries is very similar to the previously reported rate of decline in human ovaries over the same range of ages

David M.W. Barrett, Rajesha Duggavathi, Kate L. Davies, Pawel M. Bartlewski, Edward T. Bagu, and Norman C. Rawlings

Differential Effects of Various Estradiol-17beta Treatments on Follicle-Stimulating Hormone Peaks, Luteinizing Hormone Pulses, Basal Gonadotropin Concentrations, and Antral Follicle and Luteal Development in Cyclic Ewes
Biol Reprod 2007 77: 252-262. [Abstract] [Full Text] [PDF]  

Summary: Various estradiol-17beta concentrations and exposure times altered antral follicle development and differentially effected FSH peaks, LH pulses, basal gonadotropin concentrations, and CL function

Youngsok Choi, Yingying Qin, Michael F. Berger, Daniel J. Ballow, Martha L. Bulyk, and Aleksandar Rajkovic

Microarray Analyses of Newborn Mouse Ovaries Lacking Nobox
Biol Reprod 2007 77: 312-319. [Abstract] [Full Text] [PDF] [Supplemental Tables]  

Summary: Nobox activates expression of oocyte-specific genes and represses transcription of genes preferentially expressed in testes.

Pituitary:

J. Alejandro Arreguin-Arevalo, Tracy L. Davis, and Terry M. Nett

Differential Modulation of Gonadotropin Secretion by Selective Estrogen Receptor 1 and Estrogen Receptor 2 Agonists in Ovariectomized Ewes
Biol Reprod 2007 77: 320-328. [Abstract] [Full Text] [PDF]  

Summary: The positive and negative feedback of estradiol on LH secretion is mediated by ESR1 and ESR2 in OVX ewes

Pregnancy:

Cassandre Labelle-Dumais, Jean-François Paré, Luc Bélanger, Riaz Farookhi, and Daniel Dufort

Impaired Progesterone Production in Nr5a2^+/– Mice Leads to a Reduction in Female Reproductive Function
Biol Reprod 2007 77: 217-225. [Abstract] [Full Text] [PDF]  

Summary: The nuclear receptor NR5A2 is involved in progesterone production and female reproductive function in vivo in the mouse

Joanne C. Cooper, Gillian B. Dealtry, Mohamed Abdelrahman Ahmed, Petra C. Arck, Burghard F. Klapp, Sandra M. Blois, and Nelson Fernández

An Impaired Breeding Phenotype in Mice with a Genetic Deletion of Beta-2 Microglobulin and Diminished MHC Class I Expression: Role in Reproductive Fitness
Biol Reprod 2007 77: 274-279. [Abstract] [Full Text] [PDF]  

Summary: A selective deletion of the gene encoding B2M, a protein that associates with the heavy chain of the MHC Class I products, decreases reproductive fitness of C57BL6 mice by affecting breeding performance, litter size, and weaning success.

Margaret M. Joyce, James R. Burghardt, Robert C. Burghardt, R. Neil Hooper, Laurie A. Jaeger, Thomas E. Spencer, Fuller W. Bazer, and Greg A. Johnson

Pig Conceptuses Increase Uterine Interferon-Regulatory Factor 1 (IRF1), but Restrict Expression to Stroma Through Estrogen-Induced IRF2 in Luminal Epithelium
Biol Reprod 2007 77: 292-302. [Abstract] [Full Text] [PDF]  

Summary: Pig conceptuses secrete estrogens and interferons to differentially regulate IRF1 and IRF2 in endometrial stroma and luminal epithelium

Justin Luther, Raymond Aitken, John Milne, Masatoshi Matsuzaki, Lawrence Reynolds, Dale Redmer, and Jacqueline Wallace

Maternal and Fetal Growth, Body Composition, Endocrinology, and Metabolic Status in Undernourished Adolescent Sheep
Biol Reprod 2007 77: 343-350. [Abstract] [Full Text] [PDF]  

Summary: Limiting maternal intake during adolescent pregnancy gradually depleted maternal body reserves, impaired fetal nutrient supply, and slowed fetal soft tissue growth

Justin Luther, John Milne, Raymond Aitken, Masatoshi Matsuzaki, Lawrence Reynolds, Dale Redmer, and Jacqueline Wallace

Placental Growth, Angiogenic Gene Expression, and Vascular Development in Undernourished Adolescent Sheep
Biol Reprod 2007 77: 351-357. [Abstract] [Full Text] [PDF]  

Summary: Limiting maternal intake during adolescent pregnancy does not influence placental mass per se but impairs vascular development in the maternal caruncle, which may in turn impact fetal nutrient supply

Reproductive Technology:

Deshun Shi, Fenghua Lu, Yingming Wei, Kuiqing Cui, Sufang Yang, Jingwei Wei, and Qingyou Liu

Buffalos (Bubalus bubalis) Cloned by Nuclear Transfer of Somatic Cells
Biol Reprod 2007 77: 285-291. [Abstract] [Full Text] [PDF]  

Summary: Three cloned buffalos from fetal fibroblasts and adult ovarian granulosa cells were produced

Hiroyuki Tateno and Yujiroh Kamiguchi

Evaluation of Chromosomal Risk Following Intracytoplasmic Sperm Injection in the Mouse
Biol Reprod 2007 77: 336-342. [Abstract] [Full Text] [PDF]  

Summary: The incidence of ICSI embryos with structural chromosome aberrations is dependent on the kind of medium used for sperm incubation and the time for sperm incubation

Testis:

Olga U. Bolden-Tiller, Helio Chiarini-Garcia, Christophe Poirier, Daniel Alves-Freitas, Connie C. Weng, Gunapala Shetty, and Marvin L. Meistrich

Genetic Factors Contributing to Defective Spermatogonial Differentiation in Juvenile Spermatogonial Depletion (Utp14b^jsd) Mice
Biol Reprod 2007 77: 237-246. [Abstract] [Full Text] [PDF]  

Summary: The genetic background, particularly the Y chromosome, affects the rate and severity of spermatogonial depletion and the restoration of spermatogenesis following the suppression of testosterone or cryptorchidization in Utp14bjsd mice

Louise N. Reynard, James M.A. Turner, Julie Cocquet, Shantha K. Mahadevaiah, Aminata Touré, Christer Höög, and Paul S. Burgoyne

Expression Analysis of the Mouse Multi-Copy X-Linked Gene Xlr-Related, Meiosis-Regulated (Xmr), Reveals That Xmr Encodes a Spermatid-Expressed Cytoplasmic Protein, SLX/XMR
Biol Reprod 2007 77: 329-335. [Abstract] [Full Text] [PDF] [Supplemental Figures]  

Summary: XMR/SLX protein is a spermatid-specific cytoplasmic protein

Toxicology:

Alexis M. Codrington, Barbara F. Hales, and Bernard Robaire

Chronic Cyclophosphamide Exposure Alters the Profile of Rat Sperm Nuclear Matrix Proteins
Biol Reprod 2007 77: 303-311. [Abstract] [Full Text] [PDF]  

Summary: The expression of several spermatozoal nuclear matrix protein components, a number of which have been identified for the first time, is altered following exposure to the alkylating agent and male-mediated developmental toxicant, cyclophosphamide

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