U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Subject "animal ovaries" Remove constraint Subject: "animal ovaries"
Start Over

Search

5,104  Search Results

« Previous | 1 - 20 of 5,104 |
Number of results to display per page

Search Results

1. Chlamydiosis and cystic dilatation of the ovarian bursa in the female koala (Phascolarctos cinereus): Novel insights into the pathogenesis and mechanisms of formation

Author:
Sara Pagliarani; Stephen D. Johnston; Kenneth W. Beagley; Lyndal Hulse; Chiara Palmieri
Source:
Theriogenology 2022 v.189 pp. 280-289
ISSN:
0093-691X
Subject:
animal ovaries,   etc   ; Chlamydia; Chlamydophila pecorum; Phascolarctos cinereus; animal reproduction; cadherins; chlamydiosis; epithelial cells; epithelium; extracellular space; females; histopathology; immunohistochemistry; inflammation; males; pathogenesis; permeability; transmission electron microscopy; Australia;     Show all 19 Subjects
Abstract:
... Infection with Chlamydia pecorum is one of the main causes of progressive decline of koala (Phascolarctos cinereus) populations in Eastern Australia. Pathological changes associated with the chlamydial infection in the genital tract of female and male koalas have been widely described with reports of acute and chronic lymphoplasmacytic inflammation and the description of the cystic dilatation of t ...
DOI:
10.1016/j.theriogenology.2022.06.022

2. Inflammatory cytokines as key players of apoptosis induced by environmental estrogens in the ovary

Author:
Fa-Li Zhang; Li Kong; Ai-Hong Zhao; Wei Ge; Zi-Hui Yan; Lan Li; Massimo De Felici; Wei Shen
Source:
Environmental research 2021 v.198 pp. 111225
ISSN:
0013-9351
Subject:
animal ovaries,   etc   ; animal and human health; apoptosis; bisphenol A; phthalates; reproduction; research; tumor necrosis factors; zearalenone;     Show all 9 Subjects
Abstract:
... Natural and synthetic environmental estrogens (EEs), interfering with the physiological functions of the body's estrogens, are widespread and are rising much concern for their possible deleterious effects on human and animal health, in particular on reproduction. In fact, increasing evidence indicate that EEs can be responsible for a variety of disfunctions of the reproductive system especially in ...
DOI:
10.1016/j.envres.2021.111225

3. Intraovarianism and differences in ovulation frequency between left and right ovaries in Bos taurus heifers

Author:
O.J. Ginther; Victor E. Gomez-León
Source:
Reproductive Biology 2020 v.20 no.3 pp. 333-337
ISSN:
1642-431X
Subject:
animal ovaries,   etc   ; heifers; ovulation;     Show all 3 Subjects
Abstract:
... Sides of ovulation at beginning and end of an interovulatory interval (IOI) were studied for 10 successive ovulations in each of 100 heifers (1000 ovulations, 900 IOI). The frequency of side for 1000 ovulations was less (P < 0.0002) for the left ovary (LO or L; 44.4 %) than for the right ovary (RO or R; 55.6 %). Number of observed ratios of L to R was determined within each of 100 sets of 10 ovula ...
DOI:
10.1016/j.repbio.2020.05.006

4. Bovine in vitro embryo production using media prepared with Milli-Q® Water or nanowater

Author:
Zihui Yang; Xinyu Liu; Joanna Szymanowicz; Karolina Fryc; Tomasz Schwarz; Maciej Murawski; Pawel Mieczyslaw Bartlewski
Source:
Reproductive Biology 2020 v.20 no.4 pp. 580-583
ISSN:
1642-431X
Subject:
animal ovaries,   etc   ; blastocyst; cattle; oocytes; t-test; zygote;     Show all 6 Subjects
Abstract:
... The aim of this study was to compare the efficiency of in vitro embryo production (IVP) following the collection of bovine ovaries and 22-h in vitro maturation (IVM) of oocytes in media prepared with Milli-Q® Water (n = 509 oocytes) or nanowater (NW; n = 304 oocytes). The mean cleavage (63.8 ± 4.6 % vs. 63.6 ± 6.1 %, respectively; mean ± SEM) and blastocyst formation rate (16.3 ± 3.4 % vs. 16.7 ±  ...
DOI:
10.1016/j.repbio.2020.10.007

5. Administration of a VIP-antagonist in vivo modifies ovarian hormone secretion in a rat model with polycystic ovary syndrome

Author:
Leticia Morales-Ledesma; Angélica Trujillo Hernández; María Isabel Ramírez; Gabriela Rosas; Rosa Linares
Source:
Life sciences 2021 v.265 pp. 118792
ISSN:
0024-3205
Subject:
animal ovaries,   etc   ; animal models; antagonists; blood serum; dopamine; estradiol; estrus; hormone secretion; norepinephrine; polycystic ovary syndrome; progesterone; rats; steroidogenesis; testosterone; vasoactive intestinal peptide;     Show all 15 Subjects
Abstract:
... In the cyclic rat in estrus, the vasoactive intestinal peptide (VIP) has an impact on ovarian function, which depends on the endocrine status of the animal. In this work, we aimed to clarify the participation of VIP in the pathophysiological condition of polycystic ovary syndrome (PCOS) using a model of PCOS induced by estradiol valerate (EV-PCOS) in rats.In the cyclic rat in estrus and in the EV- ...
DOI:
10.1016/j.lfs.2020.118792

6. Interrelationships between metabolic hormones, leptin and ghrelin, and oil-related contaminants in control of oxytocin and prostaglandin F release by feline ovaries

Author:
Alexander V. Sirotkin; Adam Tarko; Jan Kotwica; Abdulkarem Alrezaki; Abdel Halim Harrath
Source:
Reproductive Biology 2020 v.20 no.2 pp. 254-258
ISSN:
1642-431X
Subject:
animal ovaries,   etc   ; cats; ghrelin; leptin; oxytocin; pollution; prostaglandins; toluene; xylene;     Show all 9 Subjects
Abstract:
... We examined the effects of metabolic hormones leptin and ghrelin, and the oil-related environmental contaminants toluene and xylene on the release of ovarian hormones by gravid and non-gravid cats, as well as the functional interrelationships between metabolic hormones and contaminants. Ovarian fragments of non-gravid cats were cultured with and without leptin and toluene. Next, ovarian fragments ...
DOI:
10.1016/j.repbio.2020.02.003

7. The regulation of Drosophila ovarian stem cell niches by signaling crosstalk

Author:
Yoshiki Hayashi; Yuto Yoshinari; Satoru Kobayashi; Ryusuke Niwa
Source:
Current opinion in insect science 2020 v.37 pp. 23-29
ISSN:
2214-5745
Subject:
animal ovaries,   etc   ; Drosophila; females; germ cells; models; niches; stem cells;     Show all 7 Subjects
Abstract:
... The Drosophila female ovary is an excellent model for investigating how multiple stem cell types are coordinately regulated in vivo. The ovary contains at least two stem cell types, germline stem cells (GSCs) and somatic follicular stem cells (FSCs). Although GSCs and FSCs are maintained within a distinct extra-cellular microenvironment, known as a niche, they share some common signaling molecules ...
DOI:
10.1016/j.cois.2019.10.006

8. Identification and functional characterization of piwi1 gene in sea cucumber, Apostichopus japonicas

Author:
Zhi-Hui Sun; Jin-Liang Wei; Zhou-Ping Cui; Ya-Lun Han; Jian Zhang; Jian Song; Ya-Qing Chang
Source:
Comparative biochemistry and physiology 2021 v.252 pp. 110536
ISSN:
1096-4959
Subject:
animal ovaries,   etc   ; Apostichopus japonicus; RNA interference; adults; gametogenesis; genes; mariculture; oocytes; plant breeding; sex determination; somatic cells; spermatids; spermatocytes; spermatogonia; testes; tissues; vertebrates; Asia;     Show all 18 Subjects
Abstract:
... The sea cucumber (Apostichopus japonicus) is an economically important mariculture species in Asia. However, the genetic breeding of sea cucumbers is difficult because the sexes cannot be identified by appearance. Therefore, studies on sex-related genes are helpful in revealing the mechanisms of sex determination and differentiation in sea cucumbers. P-element induced wimpy testis (piwi) is a germ ...
DOI:
10.1016/j.cbpb.2020.110536

9. Integrating multi-omics data by learning modality invariant representations for improved prediction of overall survival of cancer

Author:
Li Tong; Hang Wu; May D. Wang
Source:
Methods 2021 v.189 pp. 74-85
ISSN:
1046-2023
Subject:
animal ovaries,   etc   ; DNA methylation; breast neoplasms; copy number variation; death; decision making; drugs; gene expression; learning; microRNA; multiomics; neural networks; ovarian neoplasms; patients; prediction; women;     Show all 16 Subjects
Abstract:
... Breast and ovarian cancers are the second and the fifth leading causes of cancer death among women. Predicting the overall survival of breast and ovarian cancer patients can facilitate the therapeutics evaluation and treatment decision making. Multi-scale multi-omics data such as gene expression, DNA methylation, miRNA expression, and copy number variations can provide insights on personalized sur ...
DOI:
10.1016/j.ymeth.2020.07.008

10. Signal transduction in the early Drosophila follicle stem cell lineage

Author:
Katja Rust; Todd Nystul
Source:
Current opinion in insect science 2020 v.37 pp. 39-48
ISSN:
2214-5745
Subject:
animal ovaries,   etc   ; Drosophila; epithelial cells; epithelium; models; signal transduction; stem cells;     Show all 7 Subjects
Abstract:
... The follicle stem cell (FSC) lineage in the Drosophila ovary is a highly informative model of in vivo epithelial stem cell biology. Studies over the past 30 years have identified roles for every major signaling pathway in the early FSC lineage. These pathways regulate a wide variety of cell behaviors, including self-renewal, proliferation, survival and differentiation. Studies of cell signaling in ...
DOI:
10.1016/j.cois.2019.11.005
PubMed:
32087562
PubMed Central:
PMC7155752

11. Spermatozoa ultrastructure, spermatogenesis and reproductive system of Acanthodasys australis (Gastrotricha, Macrodasyida)

Author:
Loretta Guidi; André Rinaldo Senna Garraffoni; Federica Semprucci; Maria Balsamo
Source:
Zoologischer Anzeiger 2020 v.286 pp. 108-116
ISSN:
0044-5231
Subject:
animal ovaries,   etc   ; acrosome; flagellum; intestines; mitochondria; models; oocytes; spermatogenesis; testes; ultrastructure;     Show all 10 Subjects
Abstract:
... Spermatozoon morphology, spermatogenesis and reproductive system of Acanthodasys australis (Thaumastodermatidae) were studied at ultrastructural level. The spermatozoon is a filiform cell formed by a cork-screw-shaped acrosome, a helical nuclear–mitochondrial complex and a long flagellum. The acrosome contains an axial tubular structure composed of a pile of electron-dense rings. The helical nucle ...
DOI:
10.1016/j.jcz.2020.04.006

12. Summation of disinfection by-product CHO cell relative toxicity indices: sampling bias, uncertainty, and a path forward

Author:
Elizabeth McKenna; Kyle A. Thompson; Lizbeth Taylor-Edmonds; Daniel L. McCurry; David Hanigan
Source:
Environmental science 2020 v.22 no.3 pp. 708-718
ISSN:
2050-7895
Subject:
animal ovaries,   etc   ; Chinese hamsters; activated carbon; byproducts; cytotoxicity; disinfection; mutagens; uncertainty;     Show all 8 Subjects
Abstract:
... The cyto- and genotoxic potencies of disinfection by-products (DBPs) have been evaluated in published literature by measuring the response of exposed Chinese hamster ovary cells. In recent publications, DBP concentrations divided by their individual toxicity indices are summed to predict the relative toxicity of a water sample. We hypothesized that the omission or inclusion of certain DBPs over ot ...
DOI:
10.1039/c9em00468h

13. Timing of oocyte recruitment within the ovulatory cycle of Macedonian shad, Alosa macedonica, a batch spawning fish with indeterminate fecundity

Author:
Foivos Alexandros Mouchlianitis; George Minos; Kostas Ganias
Source:
Theriogenology 2020 v.146 pp. 31-38
ISSN:
0093-691X
Subject:
animal ovaries,   etc   ; Alosa; fecundity; gonadosomatic index; oocytes; ovulation; periodicity; shad; spawning;     Show all 9 Subjects
Abstract:
... The recruitment of primary growth (PG) oocytes to the secondary growth (SG) phase within the ovulatory cycle, i.e. time interval between two sequential ovulation/spawning events, has rarely been examined in detail in a quantitative manner for batch spawning fishes with indeterminate fecundity. In the present study we analyzed the ovarian dynamics of Macedonian shad, Alosa macedonica, an iteroparou ...
DOI:
10.1016/j.theriogenology.2020.01.050

14. Feasibility and efficacy of ultrasonographic and laparoscopic guidance for microwave ablation of clinically normal canine ovaries

Author:
Valentine D. Verpaalen; J. Brad Case; Michael J. Dark; S. Joel Cardenas-Goicoechea; Matt D. Winter; Sarah E. Boston; Fernando Garcia-Pereira; Alice S. Rhoton-Vlasak; Beau B. Toskich
Source:
American journal of veterinary research 2020 v.81 no.9 pp. 747-754
ISSN:
0002-9645
Subject:
animal ovaries,   etc   ; cell viability; dissection; dogs; energy; histology; laparotomy; ultrasonography; veterinary medicine;     Show all 9 Subjects
Abstract:
... OBJECTIVE To determine the optimal energy profile for and to assess the feasibility and efficacy of ultrasonographic and laparoscopic guidance for microwave ablation (MWA) of clinically normal canine ovaries. SAMPLE 44 extirpated ovaries from 22 healthy dogs. PROCEDURES In the first of 2 trials, 13 dogs underwent oophorectomy by routine laparotomy. Extirpated ovaries underwent MWA at 45 W for 60 ( ...
DOI:
10.2460/ajvr.81.9.747

15. Germline stem cell aging in the Drosophila ovary

Author:
Julien Roy Ishibashi; Tommy Henry Taslim; Hannele Ruohola-Baker
Source:
Current opinion in insect science 2020 v.37 pp. 57-62
ISSN:
2214-5745
Subject:
animal ovaries,   etc   ; Drosophila; adult stem cells; cell senescence; germ cells; homeostasis; phenotype;     Show all 7 Subjects
Abstract:
... The age-related decline of adult stem cells leads to loss of tissue homeostasis and contributes to organismal aging. Though the phenotypic hallmarks of aging are well-characterized at the organ or tissue level, the molecular processes that govern stem cell aging remain unclear. This review seeks to highlight recent research in stem cell aging in the Drosophila ovary and connect the discoveries in ...
DOI:
10.1016/j.cois.2019.11.003

16. Harvesting, processing, and evaluation of in vitro-manipulated equine preantral follicles: A review

Author:
E.L. Gastal; F.L.N. Aguiar; G.D.A. Gastal; K.A. Alves; B.G. Alves; J.R. Figueiredo
Source:
Theriogenology 2020 v.156 pp. 283-295
ISSN:
0093-691X
Subject:
animal ovaries,   etc   ; abnormal development; animal reproduction; follicular development; mares; models; oocytes; periodicity;     Show all 8 Subjects
Abstract:
... The mammalian ovary is responsible for essential stages of folliculogenesis and hormonal production, regulating the female physiological functions during the menstrual/estrous cycles. The mare has been considered an attractive model for comparative studies due to the striking similarities shared with women regarding in vivo and in vitro folliculogenesis. The ovarian follicular population in horses ...
DOI:
10.1016/j.theriogenology.2020.06.044

17. Propagation of jundia Rhamdia quelen (Siluriformes: Heptapteridae) by applying the ovarian sperm injection method

Author:
István Ittzés; Ernani Carlos Kronbauer; Tamás Szabó; László Horváth; Béla Urbányi; Tamás Müller
Source:
Aquaculture reports 2020 v.16 pp. 100275
ISSN:
2352-5134
Subject:
animal ovaries,   etc   ; Cyprinus carpio; Rhamdia quelen; body weight; catheters; eggs; females; males; ovulation; spermatozoa;     Show all 10 Subjects
Abstract:
... We compared the effectiveness of the ovarian sperm injection method with that of the traditional one over the artificial propagation of jundia. Three experimental groups were set up containing seven females each. Females in Group 1 received common carp pituitary extract (CPE) homogenized in saline to induce ovulation and the stripped eggs were fertilized with the traditional dry method. In Group 2 ...
DOI:
10.1016/j.aqrep.2020.100275

18. Sudden Death by Ovarian Hemorrhage and Hemoperitoneum in a Pregnant Miniature Mare

Author:
Cesar Augusto Camacho-Rozo; Gabriel de Oliveira Santos; Dominique de Paula Wenzen; Sabrina Bellaver Cousseau; Julia Gabriela Wronski; Fernando F. Argenta; Gustavo Henrique Zimmermann Winter; Saulo Petinatti Pavarini; Rodrigo Costa Mattos
Source:
Journal of equine veterinary science 2020 v.90 pp. 102996
ISSN:
0737-0806
Subject:
animal ovaries,   etc   ; Miniature (horse breed); body condition; hemorrhage; laminitis; luteinization; mares; necropsy; obesity; ovulation;     Show all 10 Subjects
Abstract:
... This report describes a case of sudden death of a pregnant miniature mare due to an acute ovarian hemorrhage leading to fatal hemoperitoneum. The miniature horse was a 12-year-old female, 60 days pregnant, with a body condition score of 7 (1–9), with a history of obesity and laminitis. Necropsy revealed hemoperitoneum due to an ovarian capsule rupture and hemorrhage after a physiological supplemen ...
DOI:
10.1016/j.jevs.2020.102996

19. N-Glycome changes reflecting resistance to platinum-based chemotherapy in ovarian cancer

Author:
Martina Zahradnikova; Ivana Ihnatova; Erika Lattova; Lukas Uhrik; Eliska Stuchlikova; Rudolf Nenutil; Dalibor Valik; Monika Nalezinska; Josef Chovanec; Zbynek Zdrahal; Borivoj Vojtesek; Lenka Hernychova; Milos V. Novotny
Source:
Journal of proteomics 2021 v.230 pp. 103964
ISSN:
1874-3919
Subject:
animal ovaries,   etc   ; blood serum; desorption; detection limit; drug therapy; fucose; glycomics; glycosylation; matrix-assisted laser desorption-ionization mass spectrometry; ovarian neoplasms; patients; platinum; polysaccharides; prediction; proteins; sialic acid; taxanes;     Show all 17 Subjects
Abstract:
... A number of studies have reported aberrant glycosylation in connection with malignancy. Our investigation further expands on this topic through the examination of N-glycans, which could be associated with the resistance of advanced stage, high-grade non-mucinous ovarian cancer to platinum/taxane based chemotherapy. We used tissue samples of 83 ovarian cancer patients, randomly divided into two ind ...
DOI:
10.1016/j.jprot.2020.103964

20. Effect of FSH treatment on cumulus oocyte complex recovery by ovum pick up and in vitro embryo production in beef donor cows

Author:
Felipe L. Ongaratto; Andrés V. Cedeño; Paula Rodriguez-Villamil; Andrés Tríbulo; Gabriel A. Bó
Source:
Animal reproduction science 2020 v.214 pp. 106274
ISSN:
0378-4320
Subject:
animal ovaries,   etc   ; beef; beef cows; blastocyst; follicle-stimulating hormone; follicular development; hyaluronic acid; oocytes;     Show all 8 Subjects
Abstract:
... This study was conducted to evaluate oocyte recovery and in-vitro blastocyst production of donor cows superstimulated for ovarian follicular development with FSH administered as twice-daily injections in saline or a single injection diluted in 0.5 % hyaluronan before oocyte aspiration. In Experiment 1, cows were treated with 160 mg of Folltropin-Vdiluted in saline, administered in four twice-daily ...
DOI:
10.1016/j.anireprosci.2020.106274