Results 61 to 70 of about 12,666 (230)

Primers used in the cloning and expression analysis of vitellogenin (Vg) and vitellogenin receptor (VgR) genes.

, 2016
Primers used in the cloning and expression analysis of vitellogenin (Vg) and vitellogenin receptor (VgR) genes.
Santosh Kumar Upadhyay (480298), Praveen C. Verma (504662), Venugopal Mendu (184563), Harpal Singh (273486), Sameer Dixit (480297)   +4 more
core   +1 more source

Molecular Characterization of Neoseiulus barkeri Vitellogenin Genes and Vitellogenin Receptor during Reproductive Diapause

Insects, 2020
The relationship between reproductive diapause and the genes related to vitellogenin (Vg) and its receptor (VgR) in insectoid ovarian development is still unclear.
Junqi Jiang, Ying Zhang, Lei Ma, Tingting Niu, Tingting Dong, Ruirui Sheng, Ling Li, Yeyu Xu, Lingyu Xi, and Guiting Li   +9 more
doaj   +1 more source

Factors Affecting Colony Losses in Honey Bees (Apis mellifera)

Turkish Journal of Agriculture: Food Science and Technology, 2022
Honey bees are a very important species in terms of economy, agriculture, and environment. In recent years, there has been a significant reduction in honey bee colonies in some parts of the world.
Halit Yücel, Kübra Ekinci, Altuğ Karaman, Halil Yaninar, Hülya Koca Karaman   +4 more
doaj   +1 more source

Nanomaterials' Multigenerational Effects by Single and Joint Exposure in Non‐mammalian Models

Environmental Toxicology, EarlyView.
ABSTRACT Nanotoxicology has mainly focused on single‐generation studies, leaving multigenerational toxicity underexplored. Having animal welfare recently gained importance, we aimed to provide the state‐of‐the‐art of knowledge about multigenerational effects in non‐mammalian models in the case of nanomaterials (NM) single and joint exposure to other ...
Andy Joel Taipe Huisa, Analía Ale, Azael Francisco Silva Neto, Lorena De Mendonça Lucena, Marcelo Estrella Josende, Milena Ferreira de Lima, Rhayanny Kethylly Pereira Santos, Martín Federico Desimone, Priscila Gubert, José María Monserrat   +9 more
wiley   +1 more source

ESTRADIOL-INDUCED SYNTHESIS OF VITELLOGENIN .3. ISOLATION AND CHARACTERIZATION OF VITELLOGENIN MESSENGER-RNA FROM AVIAN LIVER

, 1976
The messenger RNA of the hormone-induced protein vitellogenin was isolated from the liver of estrogen-treated roosters. Starting from total polysomal RNA, the vitellogenin messenger was purified 67-fold by oligo (dT)-cellulose chromatography and sizing ...
Dijkstra, J., van der Ende, A., Gruber, M., Roskam, W. G., Mulder, J., Willems, M., AB, G.   +6 more
core   +1 more source

Identification of vitellogenin gene expression patterns in liver and ovary of Rutilus frisii Kutum exposed to genistein and β-sitosterol

‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2018
The vitellogenin gene expression can be altered by some estrogenic plant compounds like Genistein and β-sitosterol. Therefore, the measurement of vitellogenin gene expression can be used as an indicator to determine their effect on reproductive ...
D. Mohammadrezaei
doaj  

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

Ecdysteroids, juvenile hormone and vitellogenesis in the cockroach Leucophaea maderae

Journal of Insect Science, 2002
Topical application of 400µg of the juvenile hormone analog, methoprene, to females of the penultimate instar of Leucophaea maderae failed to induce vitellogenin synthesis.
Franz Engelmann
doaj  

Influence of Age and Exposure Pathway on Copper and Cadmium Mixture Toxicity: A Study on Daphnia magna

Environmental Toxicology, EarlyView.
ABSTRACT Metal contamination in aquatic ecosystems poses substantial risks to freshwater organisms, with mixture effects often deviating from predictions based on single‐metal toxicity. Understanding how age‐specific sensitivities and multiple exposure pathways influence mixture effects is critical for accurate risk assessment.
Sanah Majid, Karen Smeets, Mubiana K. Valentine, Ronny Blust   +3 more
wiley   +1 more source

Calcitonin‐like diuretic hormone influences reproduction in adult female Rhodnius prolixus

Insect Science, EarlyView.
Highlights • CT/DH‐like immunoreactivity is present in female reproductive tissues • CT/DH receptor transcripts are expressed in the fat body and ovaries • RNAi knockdown of CT/DH receptors reduces egg number and hatching rate • Rhopr‐CT/DH increases RhoprVg1 and RhoprVgR expression in ovaries in vitro • Rhopr‐CT/DH stimulates oviduct contractions in a
Areej N. Al‐Dailami, Ian Orchard, Angela B. Lange   +2 more
wiley   +1 more source