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https://www.readbyqxmd.com/read/28226180/a33-shows-similar-sensitivity-to-but-is-more-specific-than-cdx2-as-an-immunomarker-of-colorectal-carcinoma
#1
Newton A C S Wong, Lukasz A Adamczyk, Shanna Evans, Jayne Cullen, Anca Oniscu, Karin A Oien
AIMS: CDX2 is widely used as a sensitive and specific immunomarker for colorectal carcinoma (CRC) but neither this sensitivity nor specificity is absolute. This study is the first known comparison of CDX1 and A33 against CDX2 as immunomarkers for CRC. METHODS AND RESULTS: As a pilot study, whole sections of 51 cases of liver metastatic carcinoma of different origins - colorectum (n=32), breast (n=3), oesophagogastric tract (n=4), lung (n=3), pancreas (n=8), and prostate (n=1) - were immunostained with CDX1, CDX2 and A33...
February 22, 2017: Histopathology
https://www.readbyqxmd.com/read/28224431/clinical-value-of-serum-anti-mullerian-hormone-and-inhibin-b-in-prediction-of-ovarian-response-in-patients-with-polycystic-ovary-syndrome
#2
Fan Zhang, Xiao-Ling Liu, Nan Rong, Xiao-Wen Huang
The present study aimed to investigate the clinical value of serum anti-mullerian hormone (AMH) and inhibin B (INHB) in predicting the ovarian response of patients with polycystic ovary syndrome (PCOS). A total of 120 PCOS patients were enrolled and divided into three groups in terms of the ovarian response: a low-response group (n=36), a normal-response group (n=44), and a high-response group (n=40). The serum AMH and INHB levels were measured by enzyme-linked immunosorbent assay (ELISA). The follicle stimulating hormone (FSH), luteinizing hormone (LH), and estradiol (E2) levels were determined by chemiluminescence microparticle immunoassay...
February 2017: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/28223433/global-cancer-in-women-burden-and-trends
#3
Lindsey A Torre, Farhad Islami, Rebecca L Siegel, Elizabeth M Ward, Ahmedin Jemal
There are striking disparities in the global cancer burden in women, yet few publications highlight cancer occurrence in this population, particularly for cancers that are not sex-specific. This paper, the first in a series of two, summarizes the current burden, trends, risk factors, prevention, early detection, and survivorship of all cancers combined and seven sites (breast, cervix, uterine corpus, ovary, colorectum, lung, and liver) that account for about 60% of the cancer burden among women worldwide, using data from the International Agency for Research on Cancer...
February 21, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28222836/presumptive-spontaneous-lysosomal-storage-like-disease-in-a-crl-cd1-icr-mouse
#4
Krista M Hernon, Tiffany L Whitcomb, Lori Davis, Timothy K Cooper
A clinically unremarkable 4.5-mo-old female Crl:CD1(ICR) VAF/Elite mouse was euthanized for scheduled sentinel processing. Gross necropsy findings included significant hepatosplenomegaly and visceral lymphadenomegaly, resulting in a preliminary gross diagnosis of lymphoma. Histology revealed florid accumulations of large, 'foamy' macrophages present in the bone marrow, small intestines, and viscera including liver, spleen, lymph nodes, thymus, uterus, and ovaries. The cytoplasm of these cells was abundant, stained pale blue with Wright-Giemsa and was periodic acid-Schiff positive...
February 1, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28222828/metabolic-consequences-of-obesity-and-insulin-resistance-in-polycystic-ovary-syndrome-diagnostic-and-methodological-challenges
#5
Yvonne M Jeanes, Sue Reeves
Women with polycystic ovary syndrome (PCOS) have a considerable risk of metabolic dysfunction. This review aims to present contemporary knowledge on obesity, insulin resistance and PCOS with emphasis on the diagnostic and methodological challenges encountered in research and clinical practice. Variable diagnostic criteria for PCOS and associated phenotypes are frequently published. Targeted searches were conducted to identify all available data concerning the association of obesity and insulin resistance with PCOS up to September 2016...
February 22, 2017: Nutrition Research Reviews
https://www.readbyqxmd.com/read/28222635/serum-betatrophin-levels-are-increased-and-associated-with-insulin-resistance-in-patients-with-polycystic-ovary-syndrome
#6
Qinglan Qu, Dongmei Zhao, Fengrong Zhang, Hongchu Bao, Qiuhua Yang
Objective Betatrophin is a newly identified circulating protein that is significantly associated with type 2 diabetes mellitus (T2DM), adiposity, and metabolic syndrome. The aim of this study was to investigate whether betatrophin levels and polycystic ovary syndrome (PCOS) were associated. Methods Circulating betatrophin levels were measured in 162 patients with PCOS and 156 matched control females using specific enzyme-linked immunosorbent assay kits. Correlations between betatrophin levels and PCOS incidence as well as multiple key endocrine PCOS parameters were analyzed using multiple statistical methods...
February 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28222104/how-important-is-thermodynamics-for-identifying-elementary-flux-modes
#7
Sabine Peres, Mario Jolicœur, Cécile Moulin, Philippe Dague, Stefan Schuster
We present a method for computing thermodynamically feasible elementary flux modes (tEFMs) using equilibrium constants without need of internal metabolite concentrations. The method is compared with the method based on a binary distinction between reversible and irreversible reactions. When all reactions are reversible, adding the constraints based on equilibrium constants reduces the number of elementary flux modes (EFMs) by a factor of two. Declaring in advance some reactions as irreversible, based on reliable biochemical expertise, can in general reduce the number of EFMs by a greater factor...
2017: PloS One
https://www.readbyqxmd.com/read/28221866/hormonal-maintenance-therapy-for-women-with-low-grade-serous-cancer-of-the-ovary-or-peritoneum
#8
David M Gershenson, Diane C Bodurka, Robert L Coleman, Karen H Lu, Anais Malpica, Charlotte C Sun
Purpose The purpose of this study was to examine outcomes associated with hormonal maintenance therapy (HMT) compared with routine observation (OBS) after primary cytoreductive surgery and platinum-based chemotherapy in women with stage II to IV low-grade serous carcinoma of the ovary or peritoneum. Patients and Methods Eligibility criteria for patients from our database were: treatment with primary surgery followed by platinum-based chemotherapy, stage II to IV disease, at least 2 years of follow-up for patients who had not experienced recurrence, and adequate clinical information...
February 21, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28220535/interaction-of-approved-drugs-with-synaptic-vesicle-protein-2a
#9
Azeem Danish, Vigneshwaran Namasivayam, Anke C Schiedel, Christa E Müller
Levetiracetam (LEV) and its recently approved derivative brivaracetam are anti-epileptic drugs with a unique mechanism of action. The synaptic vesicle protein 2A (SV2A) was previously identified as their main target. In the current study, we tested a collection of 500 approved drugs for interaction with the human SV2A protein expressed in Chinese hamster ovary cells. Competition binding studies were performed using cell lysates with high SV2A expression and [(3) H]brivaracetam as a radioligand. A hit rate of 3% was obtained, defined as compounds that inhibited radioligand binding by more than 90% at a screening concentration of 20 μM...
February 21, 2017: Archiv der Pharmazie
https://www.readbyqxmd.com/read/28220284/untangling-convoluted-taxonomy-of-chambriella-rego-chubb-pavanelli-1999-cestoda-proteocephalidae-with-erection-of-riggenbachiella-n-g-and-the-description-of-a-new-species-from-pimelodid-catfishes-in-the-neotropical-region
#10
Philippe Vieira Alves, Alain de Chambrier, José Luis Luque, Tomáš Scholz
As part of a complex revision of proteocephalid cestodes parasitic in freshwater bony fishes of the Neotropical Region, the genus Chambriella Rego, Chubb & Pavanelli, 1999 is redefined based on detailed examination of type-specimens and newly collected material of both nominal species of the genus. This examination revealed that the type-species C. agostinhoi (Pavanelli & Santos, 1992) from Zungaro jahu (Ihering) (type-host) and Z. zungaro (Humboldt) is indistinguishable from Lenhataenia megacephala (Woodland, 1934) from Sorubimichthys planiceps (Spix & Agassiz) (all hosts Siluriformes: Pimelodidae), the type- and only species of the genus...
February 20, 2017: Systematic Parasitology
https://www.readbyqxmd.com/read/28219651/ho1-and-wnt-expression-is-independently-regulated-in-female-mice-brains-following-permanent-ischemic-brain-injury
#11
Jatin Tulsulkar, Alicia Ward, Zahoor Shah
A gender difference in stroke is observed throughout epidemiologic studies, pathophysiology, treatment and outcomes. We investigated the neuroprotective role of hemeoxygenase (HO) enzyme, which catabolizes free heme to bilirubin, carbon monoxide and biliverdin in the female brain after permanent ischemia. We have previously reported in male mice that genetic deletion of HO1 exacerbates the brain damage after permanent ischemia, and the mechanism of neuroprotection is dependent on the HO1/Wnt pathway; however, the role of HO1/Wnt mediated neuroprotection in the female brain is yet to be investigated...
February 17, 2017: Brain Research
https://www.readbyqxmd.com/read/28219140/-effects-of-transient-exposure-to-high-glucose-on-biological-behaviors-of-human-dermal-microvascular-endothelial-cells
#12
L Qiao, H Z Yang, X C Li, X Q Huang, B Yuan, Z D Zhou
Objective: To observe the effects of transient exposure to high glucose on biological behaviors of human dermal microvascular endothelial cells cultured in vitro. Methods: The dividing method and treatment of cells for the detection of all indexes in this study were as follows. Human dermal microvascular endothelial cells of the 4th passage were divided into 3 groups according to the random number table, with 12 wells in each group. Cells in control group (C) were cultured with complete culture solution containing 5 mmol/L D-glucose for 7 d...
February 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28218887/pathology-of-serially-sacrificed-female-b6c3f1-mice-chronically-exposed-to-very-low-dose-rate-gamma-rays
#13
I B Tanaka, J Komura, S Tanaka
We have previously reported on life span shortening as well as increased incidence rates in several neoplasms in B6C3F1 mice that were continuously exposed to 21 mGy/day of gamma rays for 400 days. To clarify whether the life shortening was due to early appearance of neoplasms (shortened latency) or increased promotion/progression, 8-week-old female specific-pathogen-free B6C3F1 mice were gamma-ray irradiated at a low dose rate of 20 mGy/day for 400 days. At 100 days postirradiation, 60-90 mice were sacrificed, and thereafter every 100 days alongside the age-matched nonirradiated controls, for 700 days...
February 20, 2017: Radiation Research
https://www.readbyqxmd.com/read/28218815/glycoengineering-of-esterase-activity-through-metabolic-flux-based-modulation-of-sialic-acid
#14
Mohit Mathew, Elaine Tan, Jason W Labonte, Shivam Shah, Christopher T Saeui, Lingshu Liu, Rahul Bhattacharya, Patawut Bovonratwet, Jeffrey J Gray, Kevin Yarema
This report describes the metabolic glycoengineering (MGE) of intracellular esterase activity in human colon cancer (LS174T) and Chinese hamster ovary (CHO) cells. In silico analysis of the carboxylesterases CES1 and CES2 suggested that these enzymes are modified with sialylated N-glycans, which are proposed to stabilize the active multimeric forms of these enzymes. This premise was supported by treating cells with butanolylated ManNAc to increase sialylation, which in turn increased esterase activity. By contrast, hexosamine analogs not targeted to sialic acid biosynthesis (e...
February 20, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28218624/loss-of-microrna-7a2-induces-hypogonadotropic-hypogonadism-and-infertility
#15
Kashan Ahmed, Mary P LaPierre, Emanuel Gasser, Rémy Denzler, Yinjie Yang, Thomas Rülicke, Jukka Kero, Mathieu Latreille, Markus Stoffel
MicroRNAs (miRNAs) are negative modulators of gene expression that fine-tune numerous biological processes. miRNA loss-of-function rarely results in highly penetrant phenotypes, but rather, influences cellular responses to physiologic and pathophysiologic stresses. Here, we have reported that a single member of the evolutionarily conserved miR-7 family, miR-7a2, is essential for normal pituitary development and hypothalamic-pituitary-gonadal (HPG) function in adulthood. Genetic deletion of mir-7a2 causes infertility, with low levels of gonadotropic and sex steroid hormones, small testes or ovaries, impaired spermatogenesis, and lack of ovulation in male and female mice, respectively...
February 20, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28218427/two-vitellogenins-in-the-loliginid-squid-uroteuthis-edulis-identification-and-specific-expression-in-ovarian-follicles
#16
Hajime Kitano, Naoki Nagano, Keishi Sakaguchi, Michiya Matsuyama
Vitellogenenesis is a physiological process common in oviparous animals. The molecular profile, modifications, and utilization of vitellogenin (VTG), a precursor of yolk protein, have been characterized in various taxa to understand oogenesis within different modes of reproduction. Hormonal regulation of VTGs has been investigated in invertebrates, such as insects and crustaceans; conversely, little is known for cephalopods. In this study, we isolated two VTG genes (ue-VTG1 and ue-VTG2) from the loliginid swordtip squid, Uroteuthis edulis, via a comprehensive survey of a transcriptome database and subsequent cDNA cloning...
February 20, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28218403/unveiling-gene-trait-relationship-by-cross-platform-meta-analysis-on-chinese-hamster-ovary-cell-transcriptome
#17
Liang Zhao, Hsu-Yuan Fu, Ravali Raju, Nandita Vishwanathan, Wei-Shou Hu
In the past few years, transcriptome analysis has been increasingly employed to better understand the physiology of Chinese hamster ovary (CHO) cells at a global level. As more transcriptome data accumulated, meta-analysis on data sets collected from various sources can potentially provide better insights on common properties of those cells. Here, we performed meta-analysis on transcriptome data of different CHO cell lines obtained using NimbleGen or Affymetrix microarray platforms. Hierarchical clustering, non-negative matrix factorization (NMF) analysis, and principal component analysis (PCA) accordantly showed the samples were clustered into two groups: one consists of adherent cells in serum-containing medium, and the other suspension cells in serum-free medium...
February 20, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28218391/mapk3-1-participates-in-the-activation-of-primordial-follicles-through-mtorc1-kitl-signaling
#18
Yu Zhao, Yu Zhang, Jia Li, Nana Zheng, Xiaoting Xu, Jing Yang, Guoliang Xia, Meijia Zhang
The majority of ovarian primordial follicles are preserved in a dormant state to maintain the female reproductive lifespan, and only a few primordial follicles are activated to enter the growing follicle pool in each wave. Recent studies have shown that primordial follicular activation depends on mammalian target of rapamycin complex 1 (mTORC1)-KIT ligand (KITL) signaling in pre-granulosa cells and its receptor (KIT)-phosphoinositol 3 kinase (PI3K) signaling in oocytes. However, the upstream regulator of mTORC1 signaling is unclear...
February 20, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28216918/spontaneous-conception-in-40-year-old-infertile-woman-with-polycystic-ovaries-after-complete-reversal-of-endometrial-intraepithelial-neoplasia-a-case-report-with-review-of-literature
#19
Swati Verma, Umesh N Jindal
We report a case of polycystic ovary syndrome and prolonged infertility in which endometrial intraepithelial neoplasia was reversed with high dose progesterone therapy. Spontaneous conception after failure of assisted reproductive techniques highlights the role of endometrial receptivity.
October 2016: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/28216916/a-rare-case-of-46-xx-gonadal-dysgenesis-and-mayer-rokitansky-kuster-hauser-syndrome
#20
Sriharibabu Manne, C H Veeraabhinav, Mounica Jetti, Yalamanchali Himabindu, Kiranmai Donthu, Mutyalarayudu Badireddy
46,XX gonadal dysgenesis is a rare genetically heterogeneous disorder characterized by underdeveloped ovaries with consequent, impuberism, primary amenorrhea, and hypergonadotropic hypogonadism. Mullerian agenesis or Mayer-Rokitansky-Kuster-Hauser (MRKH) syndrome is characterized by congenital aplasia of the uterus and the upper part (2/3) of the vagina in a woman with normal development of secondary sexual characteristics and a normal 46,XX karyotype. The phenotypic manifestations of MRKH syndrome may sometimes overlap with various other syndromes and require accurate delineation...
October 2016: Journal of Human Reproductive Sciences
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