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https://www.readbyqxmd.com/read/28340932/predicting-first-trimester-pregnancy-outcome-derivation-of-a-multiple-marker-test
#1
Suneeta Senapati, Mary D Sammel, Samantha F Butts, Peter Takacs, Karine Chung, Kurt T Barnhart
OBJECTIVE: To predict first trimester pregnancy outcome using biomarkers in a multicenter cohort. DESIGN: Case-control study. SETTING: Three academic centers. PATIENT(S): Women with pain and bleeding in early pregnancy. INTERVENTION(S): Sera from women who were 5-12 weeks' gestational age with ectopic pregnancy (EP), viable intrauterine pregnancy (IUP), and miscarriage/spontaneous abortion (SAB) was analyzed by ELISA and immunoassay for activin A, inhibin A, P, A Disintegrin And Metalloprotease-12, pregnancy-associated plasma protein A (PAPP-A), pregnancy specific B1-glycoprotein (SP1), placental-like growth factor, vascular endothelial growth factor, glycodelin (Glyc), and hCG...
December 2016: Fertility and Sterility
https://www.readbyqxmd.com/read/28340171/immunohistochemical-approach-to-the-differential-diagnosis-of-meningiomas-and-their-mimics
#2
Camille Boulagnon-Rombi, Clémence Fleury, Caroline Fichel, Sophie Lefour, Aude Marchal Bressenot, Guillaume Gauchotte
The differential diagnosis between meningioma and others tumors can be challenging. This study aimed to evaluate different immunohistochemical markers for the differential diagnosis between meningioma and their morphological mimics. Immunohistochemistry was performed on tissue microarray with antiepithelial membrane antigen (EMA), progesterone receptor, somatostatin receptor 2A (SSTR2A), CD34, STAT6, S100, SOX10, HMB45, MelanA, GFAP, inhibin, and BCL2 antibodies. One hundred and twenty-seven meningiomas, 26 solitary fibrous tumor/hemangiopericytomas (SFT/HPC), 39 schwannomas, 17 hemangioblastomas, 21 melanomas, 9 gliosarcomas, 5 neurofibromas, 9 peripheral primitive neuroectodermal tumors, 7 synovial sarcomas, and 5 malignant peripheral nerve sheath tumors were included in the microarray...
March 14, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28333263/loss-of-luteotropic-prostaglandin-e-plays-an-important-role-in-the-regulation-of-luteolysis-in-women
#3
Junko Nio-Kobayashi, Masataka Kudo, Noriaki Sakuragi, Toshihiko Iwanaga, W Colin Duncan
STUDY QUESTION: Do intraluteal prostaglandins (PG) contribute to luteal regulation in women? SUMMARY ANSWER: Prostaglandin E (PGE), which is produced in human granulosa-lutein cells stimulated with luteotropic hCG, exerts similar luteotropic effects to hCG, and the expression of PG synthetic and metabolic enzymes in the human CL is driven toward less PGE but more prostaglandin F (PGF) during luteolysis. WHAT IS KNOWN ALREADY: Uterine PGF is a major luteolysin in many non-primate species but not in women...
March 17, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28324034/anti-mullerian-hormone-and-ovarian-morphology-in-women-with-isolated-hypogonadotropic-hypogonadism-kallmann-syndrome-effects-of-recombinant-human-fsh
#4
Hélène Bry-Gauillard, Florence Larrat-Ledoux, Jean-Marc Levaillant, Nathalie Massin, Luigi Maione, Isabelle Beau, Nadine Binart, Philippe Chanson, Sylvie Brailly-Tabard, Janet E Hall, Jacques Young
Context: Isolated hypogonadotropic hypogonadism (IHH), characterized by gonadotropin deficiency and absent puberty, is very rare in women. IHH prevents pubertal ovarian stimulation, but anti-Mullerian hormone (AMH) and antral follicle count (AFC), have not been studied. Objectives: 1) Compare, in IHH versus controls, AMH, ovarian volume (OV) and AFC. 2) Compare in IHH, ovarian responses to recombinant human FSH (rhFSH) and rhFSH plus rhLH. Subjects: 68 IHH women, 51 matched healthy women...
January 27, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28304252/utility-of-orchidometric-parameters-for-assessing-sexual-maturation-in-male-cynomolgus-macaques-macaca-fascicularis
#5
Michael L Mirsky, Susan Portugal, Harshan Pisharath, Jodi L Osowski, Laura Kearney
Testicular volume is one of several parameters that have been used in preclinical toxicology to facilitate the identification of sexually mature male cynomolgus macaques when semen evaluation is unavailable. Furthermore, testicular volume provides additional information to pathologists to aid in the interpretation of microscopic findings. Orchidometry has been proposed as a useful tool for assessing testicular volume. To assess its utility for this purpose, we used orchidometry to measure testicular volume in untreated control male cynomolgus macaques during preclinical toxicology studies...
December 1, 2016: Comparative Medicine
https://www.readbyqxmd.com/read/28301516/follistatin-attenuates-radiation-induced-fibrosis-in-a-murine-model
#6
Helen B Forrester, David M de Kretser, Trevor Leong, Jim Hagekyriakou, Carl N Sprung
PURPOSE: Fibrosis can be a disabling, severe side effect of radiotherapy that can occur in patients, and for which there is currently no effective treatment. The activins, proteins which are members of the TGFβ superfamily, have a major role in stimulating the inflammatory response and subsequent fibrosis. Follistatin is an endogenous protein that binds the activins virtually irreversibly and inhibits their actions. These studies test if follistatin can attenuate the fibrotic response using a murine model of radiation-induced fibrosis...
2017: PloS One
https://www.readbyqxmd.com/read/28299766/increased-level-of-c-kit-in-semen-of-infertile-patients-with-varicocele
#7
Guorong Jin, Jianrong Liu, Qin Qin, Songdan Gao, Fang Zhang, Yuehong Ma, Caiyun Ding, Lina Dong, Haizhen Yin, Yimin Wang
PURPOSE: Varicocele is the most common risk factor for male infertility, however, not all males with varicocele experience infertility. In fact, most patients with varicocele have normal spermatogenesis. The molecular mechanism of varicocele-associated infertility is yet to be completely understood. The aim of this study is to assess the association of a number of fertility regulatory factors on varicocele associated infertility and to throw light on the mechanism of varicocele-associated infertility...
March 16, 2017: Urology Journal
https://www.readbyqxmd.com/read/28299491/effects-of-androgen-receptor-mutation-on-testicular-histopathology-of-patient-having-complete-androgen-insensitivity
#8
Ihtisham Bukhari, Guangyuan Li, Liu Wang, Furhan Iqbal, Huan Zhang, Jiansheng Zhu, Hui Liu, Xiangdong Fang, Nasser M Al-Daghri, Howard J Cooke, Yuanwei Zhang, Xiaohua Jiang
Androgens are required for normal male sex differentiation and development of male secondary sexual characteristics. Mutations in AR gene are known to cause defects in male sexual differentiation. In current study, we enrolled a 46,XY phenotypically female patient bearing testes in inguinal canal. DNA sequencing of the AR gene detected a missense mutation C.1715A > G (p. Y572C) in exon 2 which is already known to cause complete androgen insensitivity syndrome (CAIS). We focused on the effects of this mutation on the testicular histopathology of the patient...
March 15, 2017: Journal of Molecular Histology
https://www.readbyqxmd.com/read/28296679/primary-cystic-trophoblastic-tumor-of-the-testis-a-study-of-14-cases
#9
Dibson D Gondim, Thomas M Ulbright, Liang Cheng, Muhammad T Idrees
Cystic trophoblastic tumor (CTT) has been described in postchemotherapy retroperitoneal lymph node dissections of patients with testicular germ cell tumors. Prognostically, this lesion is similar to teratoma and no further treatment is required after surgery in the absence of other components. CTT has not, however, been reported in the testis. We identified 14 CTTs in the treated (4) and untreated (9; no information for 1 patient) testes of patients 15 to 43 years old (median, 25) with mixed germ cell tumors...
March 14, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28295159/first-and-second-trimester-serum-tests-with-and-without-first-trimester-ultrasound-tests-for-down-s-syndrome-screening
#10
REVIEW
S Kate Alldred, Yemisi Takwoingi, Boliang Guo, Mary Pennant, Jonathan J Deeks, James P Neilson, Zarko Alfirevic
BACKGROUND: Down's syndrome occurs when a person has three copies of chromosome 21 (or the specific area of chromosome 21 implicated in causing Down's syndrome) rather than two. It is the commonest congenital cause of mental disability. Non-invasive screening based on biochemical analysis of maternal serum or urine, or fetal ultrasound measurements, allows estimates of the risk of a pregnancy being affected and provides information to guide decisions about definitive testing.  Before agreeing to screening tests, parents need to be fully informed about the risks, benefits and possible consequences of such a test...
March 15, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28295158/first-trimester-ultrasound-tests-alone-or-in-combination-with-first-trimester-serum-tests-for-down-s-syndrome-screening
#11
REVIEW
S Kate Alldred, Yemisi Takwoingi, Boliang Guo, Mary Pennant, Jonathan J Deeks, James P Neilson, Zarko Alfirevic
BACKGROUND: Down's syndrome occurs when a person has three, rather than two copies of chromosome 21; or the specific area of chromosome 21 implicated in causing Down's syndrome. It is the commonest congenital cause of mental disability and also leads to numerous metabolic and structural problems. It can be life-threatening, or lead to considerable ill health, although some individuals have only mild problems and can lead relatively normal lives. Having a baby with Down's syndrome is likely to have a significant impact on family life...
March 15, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28281288/maternal-circulating-levels-of-transforming-growth-factor-%C3%AE-superfamily-and-its-soluble-receptors-in-hypertensive-disorders-of-pregnancy
#12
Yan-Ting Xu, Min-Hong Shen, Ai-Ying Jin, Hong Li, Rui Zhu
OBJECTIVE: To assess circulating levels of transforming growth factor (TGF)-β superfamily members and their soluble receptors in hypertensive disorders of pregnancy, and to investigate associations with clinical manifestations. METHODS: A retrospective study was conducted using data for women admitted to a center in China for delivery between May 2011 and April 2013. Women with severe pre-eclampsia, mild pre-eclampsia, and gestational hypertension were included, along with a control group...
March 9, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28276867/pathogenesis-and-treatment-of-adult-type-granulosa-cell-tumor-of-the-ovary
#13
Anniina Färkkilä, Ulla-Maija Haltia, Johanna Tapper, Melissa K McConechy, David G Huntsman, Markku Heikinheimo
Adult-type granulosa cell tumor is a clinically and molecularly unique subtype of ovarian cancer. These tumors originate from the sex cord stromal cells of the ovary and represent 3-5% of all ovarian cancers. The majority of adult-type granulosa cell tumors are diagnosed at an early stage with an indolent prognosis. Surgery is the cornerstone for the treatment of both primary and relapsed tumor, while chemotherapy is applied only for advanced or non-resectable cases. Tumor stage is the only factor consistently associated with prognosis...
March 6, 2017: Annals of Medicine
https://www.readbyqxmd.com/read/28272677/correlation-of-foxl2-with-inhibin-and-calretinin-in-the-diagnosis-of-ovarian-sex-cord-stromal-tumors
#14
Ruchi Rathore, Deepshikha Arora, Sarla Agarwal, Sonal Sharma
OBJECTIVE: Alpha-inhibin and calretinin have been traditionally used as immunomarkers for sex cord stromal tumors. However, the variation in their immunoreactivity and their lack of specificity for sex cord stromal tumor makes the search for a more sensitive and specific immunohistochemical marker essential in routine diagnosis of sex cord stromal tumor. This study was conducted to correlate the diagnostic utility of FOXL2 with inhibin and calretinin in the diagnosis of sex cord stromal tumors of ovary...
February 4, 2017: Türk Patoloji Dergisi
https://www.readbyqxmd.com/read/28262687/the-syndrome-of-central-hypothyroidism-and-macroorchidism-igsf1-controls-trhr-and-fshb-expression-by-differential-modulation-of-pituitary-tgf%C3%AE-and-activin-pathways
#15
Marta García, Raquel Barrio, Montserrat García-Lavandeira, Angela R Garcia-Rendueles, Adela Escudero, Esther Díaz-Rodríguez, Darya Gorbenko Del Blanco, Ana Fernández, Yolanda B de Rijke, Elena Vallespín, Julián Nevado, Pablo Lapunzina, Vilborg Matre, Patricia M Hinkle, Anita C S Hokken-Koelega, María P de Miguel, José Manuel Cameselle-Teijeiro, Manuel Nistal, Clara V Alvarez, José C Moreno
IGSF1 (Immunoglobulin Superfamily 1) gene defects cause central hypothyroidism and macroorchidism. However, the pathogenic mechanisms of the disease remain unclear. Based on a patient with a full deletion of IGSF1 clinically followed from neonate to adulthood, we investigated a common pituitary origin for hypothyroidism and macroorchidism, and the role of IGSF1 as regulator of pituitary hormone secretion. The patient showed congenital central hypothyroidism with reduced TSH biopotency, over-secretion of FSH at neonatal minipuberty and macroorchidism from 3 years of age...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28261833/diagnostic-utility-of-testosterone-priming-prior-to-dynamic-tests-to-differentiate-constitutional-delay-in-puberty-from-isolated-hypogonadotropic-hypogonadism
#16
Suja P Sukumar, Anil Bhansali, Naresh Sachdeva, Chirag Kamal Ahuja, Ujjwal Gorsi, Kush Dev Singh Jarial, Rama Walia
CONTEXT: Differentiation between constitutional delay in puberty (CDP) and isolated hypogonadotropic hypogonadism (IHH) during adolescence is a great clinical challenge and the available diagnostic tests are of limited value. OBJECTIVE: To study the effect of withdrawal of short term, low dose testosterone therapy (testosterone priming) on the discriminatory power of dynamic tests for hypothalamo-pituitary-testicular axis to differentiate CDP from IHH. DESIGN: A prospective study (n=30) consisting of 20 boys with delayed puberty (Group A) and 10 patients with IHH (Group B)...
March 5, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28260095/inhibin-%C3%AE-gene-mutations-and-mrna-levels-in-human-lymphoid-and-myeloid-leukemia-cells
#17
Young Il Kim, Seung-Won Park, Hye Shin Kwon, Hyung-Seok Yang, Sun Young Cho, Young Jin Kim, Hee Joo Lee
The inhibin-α gene was identified as a tumor suppressor gene in the gonads and adrenal glands by functional studies using knockout mice. Methylation of CpG sites within the regulatory regions of tumor suppressor gene is frequently associated with their transcriptional silencing. We investigated epigenetic modifications, changes in loss of heterozygosity (LOH), and mutation of the inhibin-α gene, and regulation of transcriptional expression in response to inhibitors of DNA methylation (5-aza-2'-deoxycytidine, 5-AzaC) in human lymphoid (Jurkat, Molt-4, Raji, and IM-9) and myeloid (HL-60, Kasumi-1, and K562) leukemia cells...
March 2, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28258518/adrenocortical-carcinoma-arising-in-an-adrenal-rest-a-case-report-and-review-of-the-literature
#18
Kristine M Cornejo, Henrietta A Afari, Peter M Sadow
Carcinomas arising from embryonic adrenal rests are rare with only a handful of reported cases. We report a case of an adrenocortical carcinoma arising from an adrenal rest located between the bladder and prostate in a 51 year-old man. The patient presented following a year of rectal pain and constipation. Computed tomography (CT) scan revealed a 9 cm pelvic mass that appeared to arise from the soft tissue between the bladder and prostate, with displacement of the organs and narrowing of the rectal lumen, suspected to be a sarcoma...
March 3, 2017: Endocrine Pathology
https://www.readbyqxmd.com/read/28246187/tgf-%C3%AE-family-signaling-in-connective-tissue-and-skeletal-diseases
#19
Elena Gallo MacFarlane, Julia Haupt, Harry C Dietz, Eileen M Shore
The transforming growth factor β (TGF-β) family of signaling molecules, which includes TGF-βs, activins, inhibins, and numerous bone morphogenetic proteins (BMPs) and growth and differentiation factors (GDFs), has important functions in all cells and tissues, including soft connective tissues and the skeleton. Specific TGF-β family members play different roles in these tissues, and their activities are often balanced with those of other TGF-β family members and by interactions with other signaling pathways...
February 28, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28228419/seasonal-expressions-of-follicle-stimulating-hormone-receptor-and-luteinizing-hormone-receptor-in-the-scented-gland-of-male-muskrat-ondatra-zibethicus
#20
Haolin Zhang, Fengwei Zhang, Manyu Zhu, Junjie Wang, Xia Sheng, Zhengrong Yuan, Yingying Han, Gen Watanabe, Kazuyoshi Taya, Qiang Weng
Accumulating evidence has shown that follicle stimulating hormone (FSH) and luteinizing hormone (LH) may influence the functions of non-gonadal tissues, in addition to their classic target gonads. Our previous studies revealed that the scented glands of male muskrats expressed prolactin receptor, steroidogenic enzymes and inhibin/activin subunits. To further seek the evidence of the activities of pituitary gonadotropins in scented glands, we investigated the seasonal expression patterns of FSH receptor (FSHR) and LH/choriogonadotropin receptor (LHCGR)...
February 22, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
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