نتایج جستجو برای: e12

تعداد نتایج: 774  

Journal: :Journal of neurophysiology 2006
Timothy A Jones Sherri M Jones Kristina C Paggett

It is commonly held that hearing generally begins on incubation day 12 (E12) in the chicken embryo (Gallus domesticus). However, little is known about the response properties of cochlear ganglion neurons for ages younger than E18. We studied ganglion neurons innervating the basilar papilla of embryos (E12-E18) and hatchlings (P13-P15). We asked first, when do primary afferent neurons begin to e...

2006
Thomas R. Michl

Tinbergen Rules the Taylor Rule by Thomas R. Michl JEL E12, E52

Journal: :The Journal of experimental biology 2006
Takuma Takanashi Yukio Ishikawa Peter Anderson Yongping Huang Christer Löfstedt Sadahiro Tatsuki Bill S Hansson

Male moth pheromone-detecting receptor neurons are known to be highly specific and very sensitive. We investigated physiological and behavioral responses to female sex pheromone components in male Ostrinia furnacalis moths (Lepidoptera: Crambidae). Using recordings from a cut-sensillum technique, trichoid sensilla could be grouped into four physiological types (1-4), according to the response o...

2009
Philipp Doebler Ralf Schindler

We investigate which Π2 sentences (over Hω2) that are consequences of MM also follow from BMM+NSω1 is precipitous. It turns out that admissible club guessing (acg), δ e12 = ω2, the club bounding principle (CBP), and ψAC as well as φAC follow from this weaker theory. This was known for δ e12 = ω2 and ψAC but not for φAC and acg. Additionally we show that if for all regular θ ≥ ω2 there is a semi...

Journal: :Molecular and cellular biology 1991
C Murre A Voronova D Baltimore

Recent studies have identified a family of DNA-binding proteins that share a common DNA-binding and dimerization domain with the potential to form a helix-loop-helix (HLH) structure. Various HLH proteins can form heterodimers that bind to a common DNA sequence, termed the E2-box. We demonstrate here that E2-box-binding B-cell- and myocyte-specific nuclear factors contain subunits which are iden...

ژورنال: Anatomical Sciences Journal 2010
Jalali, Mahdi, Mohammadzadeh, Elham, Nikmard, Fatemeh, Nikravesh , Mohammad Reza, Ebrahimzadeh Bideskan, Ali Reza, Fazel , Ali Reza,

Purpose: This study was conducted in order to determine distributions and changes of glycoconjugates terminal sugars during skin morphogenesis. Materials and Methods: using lectin histochemistry technique, 10% formalin fixed, paraffin embedded rat embryonic sections for days 12, 14, 16 of gestation (N=30) were incubated with different HRP-lectins from Lotus tetragonolobus (LTA), Maclura pomifer...

Journal: :Circulation research 2003
Meena S Kumar Jennifer A Hendrix A Daniel Johnson Gary K Owens

Changes in the differentiated state of smooth muscle cells (SMCs) play a key role in vascular diseases, yet the mechanisms controlling SMC differentiation are still largely undefined. We addressed the role of basic helix-loop-helix (bHLH) proteins in SMC differentiation by first determining the role of two E-box (CAnnTG) motifs, binding sites for bHLH proteins, in the transcriptional regulation...

Journal: :Investigative ophthalmology & visual science 2006
Abigail H Conrad Yuntao Zhang Amy R Walker Lisa A Olberding Ann Hanzlick Andrea J Zimmer Raul Morffi Gary W Conrad

PURPOSE Opaque chick corneas become thin and transparent from embryonic day (E)9 to E20 of incubation. Thyroxine (T4) injected in ovo on E9 induces precocious transparency by E12. The present study was conducted to determine whether corneal cells differentially express genes for T4 regulation, keratan sulfate proteoglycan (KSPG) synthesis, crystallins, and endothelial cell ion transporters duri...

Journal: :Development 1992
J García-Aragón P E Lobie G E Muscat K S Gobius G Norstedt M J Waters

Although fetal growth is generally considered to be independent of pituitary growth hormone (GH), it is possible that pituitary GH plays a modulatory role in organ development or that a GH-like substance of non pituitary origin may influence fetal growth through the GH receptor. Accordingly, we have used immunohistochemistry, northern blot analysis, the reverse transcriptase-polymerase chain re...

Journal: :The Journal of comparative neurology 1980
J Altman S A Bayer

Groups of pregnant rats were injected with two successive daily doses of 3H-thymidine from gestational days 12 and 13 (E12 + 13) until the day before birth (E21 + 22). In adult progeny of the injected rats the proportion of neurons generated on specific days was determined quantitatively in the major nuclei of the lower medulla. The earliest generated cells form two motor nuclei: the hypoglossa...

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