• Histology evaluation: Arrest of spermatogenesis predominantly at pachytene stage of meiotic prophase or meiotic division stage (see 1), some germ cells appear apoptotic (see 2). (jax.org)
  • Histology evaluation: Arrest of spermatogenesis during late pachytene stage of meiotic prophase (see 1), some seminiferous tubules have only spermatogonia and Sertoli cells present (see 1), some germ cells appear apoptotic (see 2). (jax.org)
  • Histology evaluation: Arrest of spermatogenesis during pachytene stage of meiotic prophase, some tubules are greatly depleted of germ cells (see 1). (jax.org)
  • In meiotic prophase, the sister chromatids of each chromosome develop a common axial element (AE) that is integrated into the synaptonemal complex (SC). (rupress.org)
  • Here, we show that truncation of the KRAB domain of mouse PRDM9 leads to loss of PRDM9 function and altered meiotic prophase and gametogenesis. (springer.com)
  • Ameiotic1 ( Am1 ) encodes a plant-specific nuclear protein (AM1) required for meiotic entry and progression through early prophase I. Pollen mother cells (PMCs) remain mitotic in most am1 mutants including am1-489 , while am1-praI permits meiotic entry but PMCs arrest at the leptotene/zygotene (L/Z) transition, defining the roles of AM1 protein in two distinct steps of meiosis. (biomedcentral.com)
  • Our analysis of anther transcriptome modulations by two distinct am1 alleles, am1-489 and am1-praI , redefines the role of AM1 as a modulator of expression of a subset of meiotic genes, important for meiotic progression and provided stage-specific insights into the genetic networks associated with meiotic entry and early prophase I progression. (biomedcentral.com)
  • Meiotic prophase I is much longer that mitotic prophase. (replicadb4.com)
  • Mammalian oocytes are maintained in meiotic prophase arrest for a very long time-months in mice, years in humans. (wikipedia.org)
  • Ime2p is a meiosis-specific kinase that is important during meiotic initiation and during the later stages of meiosis. (umbc.edu)
  • Mde3 functions downstream of the transcription factor Mei-4 which is essential for meiotic prophase I. (umbc.edu)
  • In the male germ line of Drosophila chromatin remains decondensed and highly transcribed during meiotic prophase until it is rapidly compacted. (biomedcentral.com)
  • During the meiotic prophase some modifications expected in active chromatin are not found or are found at low level. (biomedcentral.com)
  • They are consistent with an absence of dosage compensation of the X chromosome during the male meiotic prophase. (biomedcentral.com)
  • During the first meiotic prophase, the chromatin of Drosophila male germ cells displays remarkable differences compared with most other organisms. (biomedcentral.com)
  • In most organisms this also holds true in meiotic prophase, when progressive chromosome compaction happens in different stages, accompanied by pairing and recombination. (biomedcentral.com)
  • On the contrary in Drosophila males the characteristic meiotic prophase stages and recombination are missing [ 1 ]. (biomedcentral.com)
  • The meiotic prophase in Drosophila is also characterized by a high level of transcriptional activity which ceases shortly before the compaction of the chromatin and the entry into the first meiotic metaphase [ 3 ]. (biomedcentral.com)
  • This observation, the special characteristics of the first meiotic prophase in Drosophila and the availability of antibodies specific for particular histone modifications [ 15 ] led us to study the patterns of histone modifications in the male germ line. (biomedcentral.com)
  • ProPhase Labs on Thursday reported $29.1 million in revenues for the second quarter of 2022, up more than threefold from $9.1 million in the year-ago quarter. (genomeweb.com)
  • DOYLESTOWN, PA -- (MARKET WIRE) -- 08/12/10 -- ProPhase Labs, Inc. (NASDAQ: PRPH) today reported net sales of $1.1 million for the three months ended June 30, 2010, compared to net sales of $1.7 million for the three months ended June 30, 2009. (prophaselabs.com)
  • ProPhase Labs, Inc. (justia.com)
  • Wisp3GFP-Cre expression therefore occurs less frequently and most likely at a later stage of oocyte development in female mice compared to male mice. (harvard.edu)
  • Until the preovulatory stage, the follicle has a oocyte that is arrested in prophase I until the puberty. (slideoffice.com)
  • In the early prophase, the cell initiates cell division by breaking down some cell components and building other components and then the chromosome division starts. (vedantu.com)
  • 2. Early prophase I 3. (pdfslide.tips)
  • It then stops in early prophase. (wikipedia.org)
  • That compared with red, white, green light in the early growth promote the growth of broilers, and blue light in the late growth promote the growth of broilers. (tz-hlzm.cn)
  • During the late follicular phase, estrogen has a positive influence on LH secretion, instead of suppressing pituitary LH secretion as it does early in the follicular phase. (medscape.com)
  • The main difference between prophase 1 and 2 is that genetic recombination occurs through crossing overs and the "Chiasmata" formation during prophase 1 whereas no genetic recombination is noticed at the prophase 2. (replicadb4.com)
  • Flowering is a late step in plant development, and nearly all floral cells are somatic. (biomedcentral.com)
  • During the late prophase stage, the tapetum cells are usually microscopically visible. (microscopyu.com)
  • At later growth stage, blu-ray group weight gain, feed conversion rate, and body weight, chest heavy, thigh, calf and eviscerated weight of each index by 14.39% ~ 19.86% higher than that of other light group. (tz-hlzm.cn)
  • In 1838, Matthias Jakob Schleiden affirmed that "formation of new cells in their interior was a general rule for cell multiplication in plants", a view later rejected in favour of Mohl's model, due to contributions of Robert Remak and others. (wikipedia.org)
  • Prophase is the first phase of mitosis, the process that separates the duplicated genetic material carried in the nucleus of a parent cell into two identical daughter cells. (replicadb4.com)
  • Later, in fertilization, male and female 1N gametes will fuse to form a 2N ZYGOTE. (cellsalive.com)
  • ProPhase ended the quarter with $24.0 million in cash and cash equivalents and $3.5 million in marketable securities. (genomeweb.com)
  • In the second quarter, we continued to feel the effects of both the retail overstock created by H1N1 related sales in late 2009 and the lower incidence of colds in Q1 and Q2 2010 compared to Q1 and Q2 2009," said ProPhase CEO Ted Karkus. (prophaselabs.com)
  • The ovum's development arrests in the prophase of the cell cycle until ovulation - this can occur many decades hence [AAP 2003]. (cdc.gov)
  • 39:157-197)--actually form during late prophase, lack MTs, and are therefore not complete miniature bipolar spindles, as had been commonly assumed. (silverchair.com)
  • Experimental results showed that red light, in the late egg laying hens spleen cell immune function can be improved. (tz-hlzm.cn)
  • Years later, after spending 15 years in research and 7 days a week in the lab, in 1993 I left the University of Alberta and started a career in nature photography, multimedia and teaching. (canadiannaturephotographer.com)