Results 181 to 190 of about 220,059 (299)

Menopause and "leaky gut": implications for midlife women's health. [PDF]

J Clin Invest
Peters BA.
europepmc   +1 more source

Modular Synthesis of α‐Quaternary Pyrrolines by Pyridoxal‐Catalyzed Sequential Reactions With Precise Chirality Relay

Transformative Chemistry, EarlyView.
Direct asymmetric α‐C conjugate addition of aminoacetonitrile enabled by carbonyl/iminium double activation, together with subsequent electrophilic functionalization, offers a one‐pot, two‐step modular strategy for synthesizing chiral α‐quaternary pyrrolines with precise chirality relay and high structural diversity.
Xingdie Yang, Pengwei Ji, Liang Liu, Tongyin Chen, Siqi Liu, Wen‐Wen Chen, Baoguo Zhao   +6 more
wiley   +1 more source

Oxaziridines: Versatile Reagents in Modern Organic Synthesis

The Chemical Record, EarlyView.
Being capable of transferring an O atom and N‐group/atom, oxaziridines are considered multitasking agents. These are employed for diverse organic transformations, such as epoxidation of olefins, α‐ and γ‐hydroxylation/amination of carbonyl compounds, oxidation of sulfides, [3+2]cycloaddition with unsaturated systems.
Ajeet Chandra, Subba Rao Cheekatla, Keshaba Nanda Parida   +2 more
wiley   +1 more source

Salivary estradiol and progesterone across the menstrual cycle: Association and agreement with serum concentrations. [PDF]

Physiol Rep
Goldenstein SJ, Bechke EE, Shultz SJ, McDowell C, Wideman L.   +4 more
europepmc   +1 more source

Assessment of Oxidative Stress, Vitellogenin, and Human Health Risks Derived From Nile Tilapia Exposed to Metals and Metalloids in Southeastern Brazil

Environmental Toxicology, EarlyView.
ABSTRACT Urban coastal lagoons are highly vulnerable ecosystems increasingly affected by metal contamination, as well as multiple anthropogenic stressors. This study evaluated ecotoxicological and human health risks associated with chronic metal exposure in Nile tilapia (Oreochromis niloticus) from an anthropogenically impacted lagoon in southeastern ...
Julia Araújo Alves, Priscila M. O. Muniz Cunha, Shênia Patrícia Corrêa Novo, Lorena Oliveira Souza Soares, Tatiana Dillenburg Saint‐Pierre, Fábio Veríssimo Correia, André Luís de Sá Salomão, Rachel Ann Hauser‐Davis, Enrico Mendes Saggioro   +8 more
wiley   +1 more source

EE2 and the Fish Brain: Age‐Dependent Impact of 17α‐Ethinylestradiol on Brain Cell Proliferation and Behavior in Sea Bass Larvae

Environmental Toxicology, EarlyView.
ABSTRACT Endocrine‐disrupting chemicals (EDCs), such as 17α‐ethinylestradiol (EE2), have raised concerns about their potential effects on aquatic organisms, particularly during early developmental stages. In this context, the study of behavioral disruption has gained considerable attention, as it may have consequences on individual fitness and ...
Soloperto Sofia, Stephanie Olivier, Céline Thomasse, Christophe Minier, Marie‐Pierre Halm‐Lemeille, Christelle Jozet‐Alves, Salima Aroua   +6 more
wiley   +1 more source

Effect of Propylparaben on In Vitro Maturation of Porcine Oocytes and Embryo Development

Environmental Toxicology, EarlyView.
ABSTRACT Parabens are synthetic chemicals that, due to their antibacterial and fungicidal effects, are widely used as preservatives in food, cosmetics, and personal care products, such as shampoos, hair conditioners, body creams, soaps, deodorants, makeup, wet wipes, lotions, female hygiene products, and vaginal lubricants. Several years ago, they were
Elivier Núñez‐Macías, Fahiel Casillas, Yenny Ramírez‐Jara, Eduardo Casas, Alma López, Adyeni Barajas‐Salinas, Jaime Barraza, Brenda Casado, Ivan Bahena‐Ocampo, Lizbeth Juárez‐Rojas, Miguel Betancourt   +10 more
wiley   +1 more source

The estradiol-to-periovulatory follicle ratio (E2/N16) as a marker of follicular endocrine efficiency and embryological outcomes in ART cycles. [PDF]

Front Endocrinol (Lausanne)
Brigante CMM, Caliari I, Iemmello R, Gippone S, Guglielmi D, Dal Canto B, Mignini Renzini MR.   +6 more
europepmc   +1 more source

Evaluation of a commercial automated assay for rapid serum progesterone determination in cattle, sheep and goats

Veterinary Record, EarlyView.
Abstract Background In ruminants, information on serum progesterone concentrations can be important in monitoring the oestrous cycle for pregnancy testing and the detection of endocrine disorders. We aimed to evaluate the suitability of a commercial enzyme‐linked fluorescence assay (ELFA), the MINI VIDAS (bioMérieux, Nürtingen), for measuring ...
Lina Längerer, Gerhard Schuler, Henrik Wagner, Kathrin Büttner, Axel Wehrend   +4 more
wiley   +1 more source

Quantification of steroid hormones in free‐ranging Apennine wolf Canis lupus italicus hair samples collected post‐mortem

Wildlife Biology, EarlyView.
After decades of dramatic reductions in their populations, Italian wolves have begun recolonizing parts of their historic range. This growth in populations can lead to potential conflicts with human activities, which remain the main cause of wolf mortality.
Ilaria Troisio, Carmela Musto, Nicola Acquisti Casi, Nadia Govoni, Giuseppe Merialdi, Domenico Ventrella, Alberto Elmi, Mauro Delogu, Maria Laura Bacci   +8 more
wiley   +1 more source