نتایج جستجو برای: ovary morphology

تعداد نتایج: 189378  

Journal: :American journal of botany 2012
Nataly O'Leary Carolina Isabel Calviño Susana Martínez Pat Lu-Irving Richard G Olmstead Maria Ema Múlgura

PREMISE OF THE STUDY A new infrafamilial circumscription of the Verbenaceae with eight tribes: Casselieae, Citharexyleae, Duranteae, Lantaneae, Neospartoneae, Petreeae, Priveae, and Verbeneae, has been recently proposed, on the basis of molecular phylogenetic studies. Two genera, Dipyrena and Rhaphithamnus, remain unplaced. The aim of this work is to reconstruct the evolutionary history of morp...

2015
Soraya Parvari Mehdi Abbasi Niloufar Abbasi Valliollah Gerayeli Malek Fardin Amidi Fereydoon Sargolzaei Aval Mehryar Habibi Roudkenar Fariburz Izadyar

INTRODUCTION An increasing body of evidence has emerged regarding the existence and function of spermatogonial stem cells (SSCs); however, their female counterparts are the subject of extensive debate. Theoretically, ovarian germ stem cells (GSCs) have to reside in the murine ovary to support and replenish the follicle pool during the reproductive life span. Recently, various methods have been ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1974
J W Shay K R Porter D M Prescott

Chinese hamster ovary cells grown in monolayer culture and exposed to cytochalasin B were enucleated by centrifugation. Thereafter, the karyoplasts (the nucleated parts obtained from the bottoms of the centrifuge tubes) and the cytoplasts (the enucleated cytoplasmic parts attached to the coverslips) were allowed to recover and subsequently were examined by scanning and transmission electron mic...

Journal: :Molecular and cellular biology 1988
J K Mayo K E Sampson L D Adams E R Crumm S L Kelly I Abraham

We transfected Chinese hamster ovary (CHO) cells with a cloned v-mos gene (pHT25). The mos family of oncogenes has previously been shown to have serine-threonine kinase activity. This kinase activity may be required for oncogenic transformation, although its exact biological role is unknown. We found that the transfected cells had an altered morphology, a slower doubling time, and an apparent i...

2013
Hye Ok Kim

Reply: We recently published an original article entitled “Can high serum Anti-Müllerian hormone (AMH) levels predict the phenotypes of polycystic ovary syndrome (PCOS) and metabolic disturbances in PCOS patients?” [1]. There are numerous reports on high serum AMH levels in patients with PCOS, and their serum AMH levels are much variable. We were curious about the possibility that high serum AM...

Journal: :Taiwanese journal of obstetrics & gynecology 2007
Hsiao-Wen Tsai Yi-Jen Chen Nae-Fang Twu Chiung-Ru Lai Shu-Huei Shen Ming-Shyen Yen Kuan-Chong Chao

Primary appendiceal malignancies are rare and account for less than 0.5% of all gastrointestinal tumors [1]. While these tumors are not very common, they have a tendency for ovarian spread when they disseminate beyond the appendix. Most of them are presented at the emergency room with nonspecific symptoms, such as acute abdominal pain and huge pelvic mass, mimicking advanced stage ovarian cance...

Journal: :Journal of cell science 1989
E M Jack C J Harrison G R White C H Ockey T D Allen

The structure of harlequin-stained chromosomes following substitution with low levels of 5-bromodeoxyuridine (BrdUrd) over two cell cycles and high levels over the last part of one cycle (replication banding) was studied in Chinese hamster ovary (CHO) cells. By using correlative light (LM) and scanning electron microscopy (SEM), it was shown that the effects of both the ultraviolet light (u.v.)...

Journal: :international journal of reproductive biomedicine 0
amabe o. akpantah moses b. ekong kelechi c. uruakpa mfon akpaso mokutima a. eluwa theresa b. ekanem

background: azadirachta indica is a tree with most of the parts having various medicinal values. it is however popular because of its high potencies, as antimalarial and anti-fertility agents, which the locals still exploit. objective: we investigated the effect of the methanol leaf extract on the serum levels of the pituitary-gonad hormones and the histo-morphology of the ovary and uterus of a...

Background Polycystic ovary syndrome is a frequent condition in women of reproductive age with prevalence rate of 5-10%. This study purposed to determine the relationship between polycystic ovary syndrome and the outcome of assisted reproductive treatment (ART) cycle in Tehran, Iran. MaterialsAndMethods In this historical cohort study, 996 infertile women who were referred to Royan Institute (T...

Journal: :Biology of reproduction 2003
Eric E Nilsson Michael K Skinner

The growth and development of follicles within the ovary are highly dependent on autocrine and paracrine signaling involving growth factors from granulosa cells, theca cells, stromal interstitial cells, and the oocytes. The growth factor bone morphogenetic protein-4 (BMP-4) and its receptor (BMPR-IB) have been detected in ovaries, and a mutation in BMPR-IB has been associated with abnormal ovul...

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