Ovulate-c (human chorionic gonadotrophin) / VHB Life Sci - LARVOL DELTA

Cone allometry and seed protection from fire are similar in serotinous and nonserotinous conifers. (PubMed, New Phytol) - "Closed nonserotinous cones containing mature seeds may achieve substantial regeneration after fire if they are sufficiently large relative to fire duration and temperature. To our knowledge, this is the most comprehensive study of the effects of fire-relevant cone traits on conifer regeneration supported by physics-based fire simulation."

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Stochastic processes and changes in evolutionary rate are associated with diversification in a lineage of tropical hard pines (Pinus). (PubMed, Mol Phylogenet Evol) - "Finally, we found that most analyzed genes are under purifying selection, but there was an exception of faster evolutionary rate in some pine species, suggesting the possible action of positive selection in divergence. Our study indicated that stochastic processes have played a key role in the diversification of the group, with a possible input of positive selection in pines from Mexico and Central America."

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Anti-Müllerian Hormone Level Predicts Ovulation in Women with Polycystic Ovary Syndrome Treated with Clomiphene and Metformin. (PubMed, Fertil Steril) - P3 | "These AMH values of well-phenotyped individuals with PCOS adds to the literature and will aid in identifying AMH criteria for the diagnosis of PCOS. In women with infertility and PCOS, a higher AMH concentration was associated with reduced odds of ovulation with OI with clomiphene, clomiphene+metformin and metformin."

Journal • Infertility • Polycystic Ovary Syndrome • Sexual Disorders

Zirabia cylindrica comb. nov. provides evidence of Doyleales in the Jurassic. (PubMed, Am J Bot) - "Our results indicate that Doyleales is significantly older than previously thought, with their stratigraphic range now extending from the Lower Jurassic to the Cretaceous. The Early Jurassic occurrence of Doyleales provides important data on the emergence of seed-enclosing structures seen in seed plants throughout the Mesozoic."

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Cone humidity is a strong attractant in an obligate cycad pollination system. (PubMed, Curr Biol) - "Moreover, R. furfuracea weevils exhibit striking antennal morphological traits associated with RH perception, suggesting the importance of humidity sensing in the evolution of this insect lineage. Results from this study suggest that humidity functions in a signal-like fashion in this highly specialized pollination system and help to characterize a key pollination-mediating trait in an ancient plant lineage."

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NEW DATA FROM THE PREGNANCY IN POLYCYSTIC OVARY SYNDROME I (PPCOS I) TRIAL: HIGHER ANTI-MÜLLERIAN HORMONE (AMH) LEVEL ASSOCIATED WITH REDUCED ODDS OF OVULATION WITH OVULATION INDUCTION TREATMENT (ASRM 2022) - "PPCOS I was a double-blind, randomized trial in which 626 infertile women were randomized to treatment with metformin plus placebo, clomiphene plus placebo, or metformin plus clomiphene for up to 6 months.1 We studied 333 women from the PPCOS I trial who had serum samples available from baseline laboratory testing available for further analysis. Women with PCOS often have an elevated AMH concentration; we found that a higher baseline AMH level in women in the PPCOS1 trial was associated with a reduction in ovulation rates regardless of ovulation induction treatment method. IMPACT STATEMENT: In infertile women with PCOS, a higher AMH level predicted reduced odds of ovulation with ovulation induction therapy."

Infertility • Polycystic Ovary Syndrome

MORPHOLOGICAL DISPARITY OF EXTANT AND EXTINCT PINACEOUS OVULATE CONES: HOW MANY CONES ARE ENOUGH? (PubMed, Am J Bot) - "The results will allow assessing both the variability and the diversity of many fossil assemblages, paving the way for a more robust evaluation of Cretaceous pinaceous diversity."

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Pollen morphology and its implication in the taxonomy of some selected taxa of the bi and tri-ovulate Euphorbiaceae of the Hainan Island by using multiple microscopic techniques. (PubMed, Microsc Res Tech) - "Hence pollen traits have relevance in the taxonomy and phylogenetic of the family to define species boundaries at various taxonomic levels. This study can support and strengthen the taxonomy of subfamilies and fill the palynological gap of these taxa in Hainan Island and will contribute to future systematic studies of the Euphorbiaceae."

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Lectotypification of Chamaecyparishodginsii of the Cupressaceae. (PubMed, PhytoKeys) - "We lectotypified the name Cupressushodginsii with K000088294 because the specimen is well preserved and has enough characters for identification. Moreover, an ovulate cone (K001090486) is on the same sheet."

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Morpho-anatomical affinities and evolutionary relationships of three paleoendemic podocarp genera based on seed cone traits. (PubMed, Ann Bot) - "Altogether, the morpho-anatomy suggests Pherosphaera, Microcachrys and Saxegothaea present affinities with each other and other podocarps but the reconstruction of ancestral seed cone in Podcarpaceae is quite complex due to multiple convergent evolutions of several structures. These structures (e.g. epimatium, aril, receptaculum) are of low taxonomic value but of great evolutionary and ecologically significance and are responsive adaptations to ever-changing environmental conditions."

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Unique chemistry associated with diversification in a tightly coupled cycad-thrips obligate pollination mutualism. (PubMed, Phytochemistry) - "In field bioassays, Cycadothrips were attracted only to those volatile treatments containing prenyl crotonate. We discuss M. miquelii cone odorants relative to those of other cycads, especially with respect to prenyl crotonate being a species-specific signal to this northern C. chadwicki cryptic species, and how this system may have diversified."

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Enhancing Fertility in Mares: Recombinant Equine Gonadotropins. (PubMed, J Equine Vet Sci) - "Attempts to superovulate cyclic mares or induce the first ovulation of the year in anestrous or transitional mares using preparations of equine chorionic gonadotropin, gonadotropin-releasing hormone (GnRH), GnRH agonists, porcine FSH, domperidone, sulpiride, equine pituitary extracts, native equine FSH, human chorionic gonadotropin, progesterone, and immunization against inhibin have produced variable results. The use of recombinant technology has improved the ability to produce a reliable product in substantial quantities that is free of other hormones and possible contaminants. Several studies using reFSH and reLH that demonstrate their efficacy to superovulate the mare and induce the first ovulation of the year will be discussed in this review."

Journal • Review

A new macrofossil ephedroid plant with unusual bract morphology from the Lower Cretaceous Jiufotang Formation of northeastern China. (PubMed, BMC Evol Biol) - "This study expands our knowledge about the diversity of early gnetophytes in the Lower Cretaceous, and demonstrates the lineage continuity of gnetophytes from the Yixian Formation to the younger Jiufotang Formation."

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