Our objective was to determine if the resistance mechanism to moxidectin (MOX) is similar of that to ivermectin (IVM) and involves P-glycoproteins (PGPs). Several Caenorhabditis elegans strains were used: an IVM and MOX sensitive strain, 13 PGP deletion strains and the IVM-R strain which shows synthetic resistance to IVM (by creation of three point mutations in genes coding for α-subunits of gl...

A rapid and quantitative method for the extraction, derivatization, and liquid chromatography with fluorescence detection of ivermectin (IVM) and doramectin (DOM) residues in porcine liver was developed and validated. IVM and DOM were extracted from the liver samples with acetonitrile, the supernatant was evaporated to dryness at 37 degrees C under nitrogen, and the residue was reconstituted in...

Background: Present study aims to investigate if PMC of ovine oocytes in the presence of cilostamide a phosphodiesterase type 3 (PDE3) inhibitor can improve the shortcomings of conventional IVM system. Materials and Methods: Immature ovine oocytes were retrieved from pre antral follicles of abattoir ovaries by aspiration and after washing in Htcm + %10 FBS were immediately classified in four gr...

Cumulus-oocyte-complexes (COCs) were collected from small (<3 mm), medium (3-5 mm), and large (>5 mm) porcine follicles, and the INHA and INHB expression and cellular localization were studied. Developmentally competent (BCB+) COCs were cultured for 44 h. Samples of mRNA were isolated before and after in vitro maturation (IVM) from oocytes collected from follicles of different size for RQ-PCR a...

The in vitro maturation (IVM), fertilization (IVF) and morphological changes in buffalo cumulus oocyte complexes (COCs) cryopreserved by ultra rapid freezing using conventional (CON) and open-pulled straw (OPS) methods were tested. COCs were cryopreserved using a vitrification solution comprising of DPBS + 0.5M sucrose + 0.4% BSA and two concentrations (4.5 or 5.5M) of each cryoprotectant ethyl...

STUDY QUESTION Does heparin ablate the advantageous effects of cyclic adenosine mono-phosphate (cAMP) modulators during pre-in vitro maturation (IVM) and have a deleterious effect in standard oocyte IVM? SUMMARY ANSWER Heparin interrupts energy metabolism and meiotic progression and adversely affects subsequent development of oocytes under conditions of elevated cAMP levels in cumulus-oocyte ...

Interactive sculpting is the process by which a designer can impose free-form shape changes on the object being designed. It has potential applications in the fields like computer aided geometric design arid rapid prototyping. Our approach to interactive sculpting is through the intermediate step of interactive virtual nlachining (IVM). IVM is a subset of interactive sculpting in that the degre...

This study compared fetal response to musical stimuli applied intravaginally (intravaginal music [IVM]) with application via emitters placed on the mother's abdomen (abdominal music [ABM]). Responses were quantified by recording facial movements identified on 3D/4D ultrasound. One hundred and six normal pregnancies between 14 and 39 weeks of gestation were randomized to 3D/4D ultrasound with: (...

OBJECTIVE Optimizing in vitro maturation (IVM) media to achieve better outcomes has been a matter of interest in recent years. The aim of this prospective clinical trial was to investigate the effects of different media on the IVM outcomes of immature oocytes at the germinal vesicle (GV) stage. METHODS A total of 400 immature oocytes at the GV stage with normal morphology were retrieved from ...

BACKGROUND The outbred (as with humans) deer mice have been a useful animal model of research on human behavior and biology including that of the reproductive system. One of the major challenges in using this species is that the yield of oocyte isolation via superovulation is dismal according to the literature to date less than ∼5 oocytes per animal can be obtained so far. OBJECTIVE The goal ...