keyword
MENU ▼
Read by QxMD icon Read
search

Gonadotropin

keyword
https://www.readbyqxmd.com/read/29668033/sexual-dimorphism-in-postnatal-gonadotropin-levels-in-infancy-reflects-diverse-maturation-of-the-ovarian-and-testicular-hormone-synthesis
#1
Tanja Kuiri-Hänninen, Leo Dunkel, Ulla Sankilampi
BACKGROUND: The postnatal gonadotropin surge is sexually dimorphic: FSH levels predominate in girls and LH levels in boys. However, in preterm (PT) girls, both gonadotropin levels are higher than in PT boys. OBJECTIVE: To evaluate how gonadal maturation contributes to the sex differences in FSH and LH. DESIGN: Monthly follow-up of 58 full-term (FT, 29 boys) and 67 PT (33 boys) infants from one week (D7) to six months of age (M1-M6). Analyses were also done according to postmenstrual (PM) age in PT infants...
April 18, 2018: Clinical Endocrinology
https://www.readbyqxmd.com/read/29665170/breast-carcinoma-in-pregnancy-with-spheroid-like-placental-metastases-a-case-report
#2
Karolin Froehlich, Hanne Stensheim, Udo R Markert, Gitta Turowski
Breast cancer is one of the most common malignancies diagnosed in pregnancy. Although the tumor is often detected at an advanced stage, placental metastases are rare. Here, we describe the case of a woman with breast cancer recurrence during pregnancy and subsequent metastases. The focus of this study is the large amount of placenta metastases, which have been analyzed immunohistochemically. Staining with trophoblast markers (placenta alkaline phosphatase, beta human chorionic gonadotropin and human placental lactogen) showed the strict localization of metastases in the intervillous space without invasion into fetal tissue...
April 17, 2018: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/29665107/a-case-of-a-rare-variant-of-klinefelter-syndrome-47-xy-i-x-q10
#3
T Kondo, S Kuroda, K Usui, K Mori, T Asai, T Takeshima, T Kawahara, H Hamanoue, H Uemura, Y Yumura
Klinefelter syndrome is a condition in which a male patient has one Y chromosome and one or more extra X chromosomes. It is the most common sex chromosome disorder. Klinefelter syndrome is distinguished by many clinical features, such as infertility, high gonadotropin and low testosterone levels, increased height, and sparse body and facial hair. We report the case of a 32-year-old man who visited our hospital complaining of male infertility. Semen analysis showed azoospermia, and chromosomal analysis revealed a 47,XY,i(X)(q10) karyotype, which is a rare variant of Klinefelter syndrome...
April 17, 2018: Andrologia
https://www.readbyqxmd.com/read/29665032/testicular-choriocarcinoma-with-cutaneous-metastasis-in-a-19-year-old-man
#4
Ferdinand Toberer, Alexander Enk, Wolfgang Hartschuh, Carsten Grüllich
A 19-year-old man suffering from testicular choriocarcinoma presented to the dermatology department with a cutaneous metastasis on his head. This metastasis was the first sign of disease that led to medical consultation. Histopathology revealed cytotrophoblasts and syncytiotrophoblasts, the later expressing human chorionic gonadotropin antigen. Whole body computed tomography showed multiple metastases of the brain, lung, liver, bone, paraaortic lymph nodes and left uvea, the primary was found in the left testicle...
April 17, 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29664792/added-value-today-of-hormonal-measurements-in-ovarian-stimulation-in-gonadotropin-releasing-hormone-antagonist-treatment-cycle
#5
Biljana Popovic-Todorovic, Annalisa Racca, Christophe Blockeel
PURPOSE OF REVIEW: Traditional approach of ovarian stimulation monitoring for in-vitro fertilization involves transvaginal sonography and serum estradiol measurements. Accumulating evidence has shown that hormonal evaluations during ovarian stimulation allow individual cycle optimization, moving away from only predicting the risk of ovarian hyperstimulation syndrome, but in addition assessing the impact of ovarian stimulation on endometrial receptivity, quality of oocytes, and subsequently embryos...
April 16, 2018: Current Opinion in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29662710/natural-cycle-versus-artificial-cycle-in-frozen-thawed-embryo-transfer-a-randomized-prospective-trial
#6
Marzieh Agha-Hosseini, Leila Hashemi, Ashraf Aleyasin, Marzieh Ghasemi, Fatemeh Sarvi, Maryam Shabani Nashtaei, Mahshad Khodarahmian
Objective: To investigate whether there was a difference in pregnancy outcomes between modified natural cycle frozen-thawed embryo transfer (NC-FET) cycles and artificial cycles (AC)-FET in women who all had regular menstrual cycles. Materials and Methods: One hundred seventy patients who met the inclusion criteria and had at least two cryopreserved embryos were included in a prospective randomized controlled trial. Eighty-five patients were randomized based on Bernoulli distribution into the following two groups: 1) Modified NC-FET using human chorionic gonadotropin for ovulation induction and 2) AC-FET, in which endometrial timing was programmed with estrogen and progesterone...
March 2018: Turkish Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29660734/interpretation-of-serum-gonadotropin-levels-in-hyperprolactinemia
#7
Ali Abbara, Sophie A Clarke, Alexander Nesbitt, Sabreen Ali, Alexander N Comninos, Emma Hatfield, Niamh Martin, Amir Sam, Karim Meeran, Waljit S Dhillo
<br>Background/Aims: Hyperprolactinemia is a common cause of amenorrhea due to hypogonadotropic hypogonadism. Prolactin is hypothesized to impede the reproductive axis through an inhibitory action at the hypothalamus. However, limited data exists to aid the interpretation of serum gonadotropins in the context of hyperprolactinemia. METHODS: Serum gonadotropin values were reviewed in 243 patients with elevated serum monomeric prolactin due to discrete etiologies at a tertiary reproductive endocrine centre between 2012 and 2015...
April 16, 2018: Neuroendocrinology
https://www.readbyqxmd.com/read/29660307/gonadotropin-receptors-of-labeo-rohita-cloning-and-characterization-of-full-length-cdnas-and-their-expression-analysis-during-annual-reproductive-cycle
#8
Avinash Pradhan, Madhusmita Nayak, Mrinal Samanta, Rudra Prasanna Panda, Suresh Chandra Rath, Shiba Shankar Giri, Ashis Saha
Follicle-stimulating hormone (Fsh) and luteinizing hormone (Lh), secreted from pituitary, stimulate gonadal function by binding to their cognate receptors FSH receptor (FSHR), and LH/ choriogonadotropin receptor (LHCGR). Rohu (Labeo rohita) is a commercially important seasonal breeder freshwater fish species, but till date, the regulation of expression of gonadotropins and their receptors gene during different phases of annual reproductive cycle has not been investigated. We envisaged the critical role of these molecules during seasonal gonadal development in this carp species...
April 13, 2018: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29659678/test-cost-and-test-accuracy-in-clinical-laboratories-in-kampala-uganda
#9
Timothy K Amukele, Robert Jones, Ali Elbireer
Objectives: To assess the accuracy and costs of laboratory tests in Kampala, Uganda. Methods: A random selection of 78 laboratories tested external quality assurance samples at market rates. There were 40 moderate- to high-complexity and 38 low-complexity laboratories. Four percent (3/78) of these laboratories were accredited and 94% (73/78) were private. The 40 moderate- to high-complexity laboratories performed malaria blood smear, urine human chorionic gonadotropin (hCG), human immunodeficiency virus (HIV), syphilis, glucose, and three-panel tests: CBC, liver function tests, and kidney function tests...
April 5, 2018: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/29658438/a-systematic-review-of-first-trimester-biochemical-and-molecular-predictive-tests-for-preeclampsia
#10
Fatemeh Abdi, Zohreh Aghaie, Fatemeh Sadat Rahnemaie, Zainab Alimoradi
BACKGROUND: Preeclampsia is a multisystem disorder affecting 5%-8% of pregnant women. Considering the ongoing debate over the predicting value of some commercial first trimester tests, the aim of this study was to compare the existing first trimester screening tests for preeclampsia. METHODS: In this systematic review, relevant articles published during 2000-2017 were extracted from PubMed, Science Direct, Scopus, Cochrane Library, ISI Web of Science, and ProQuest databases...
April 16, 2018: Current Hypertension Reviews
https://www.readbyqxmd.com/read/29657689/successful-management-of-abdominal-pregnancy-two-case-reports
#11
Shabnam Saquib, Wafa Elhussein Mohammed Talha
Abdominal pregnancy is a rare, life-threatening condition defined as pregnancy in the peritoneal cavity exclusive of tubal, ovarian, or intraligamentary locations. It can be primarily located in the peritoneal cavity or secondary to a ruptured ectopic pregnancy or tubal abortion. We present two cases of abdominal pregnancy, one primary and another secondary, both diagnosed and successfully managed in our institution. The first patient, a para 2 at 14 weeks gestation, presented with abdominal pain, distension, and dizziness, which had started four days prior...
March 2018: Oman Medical Journal
https://www.readbyqxmd.com/read/29656769/population-control-in-small-animals
#12
REVIEW
Margaret V Root Kustritz
Optimal age for ovariohysterectomy or castration has not been defined in the scientific literature. Bitches and queens are significantly less likely to develop mammary neoplasia, which has a high incidence and potentially high morbidity and mortality, if spayed when young. Tom cats exhibit undesirable behaviors that preclude them being good pets and should be castrated young. There is no compelling reason to castrate male dogs when young unless it is needed to control reproductive behaviors or prevent indiscriminate breeding...
April 12, 2018: Veterinary Clinics of North America. Small Animal Practice
https://www.readbyqxmd.com/read/29656508/the-3-rd-world-conference-on-kisspeptin-kisspeptin-2017-brain-and-beyond-unresolved-questions-challenges-and-future-directions-for-the-field
#13
REVIEW
Michael N Lehman, Lique M Coolen, Robert A Steiner, Genevieve Neal-Perry, Luhong Wang, Suzanne M Moenter, Aleisha M Moore, Robert L Goodman, Shel Hwa-Yeo, Stephanie L Padilla, Alexander S Kauffman, James Garcia, Martin J Kelly, Jenny Clarkson, Sally Radovick, Andy V Babwah, Silvia Leon, Manuel Tena-Sempere, Alex Comninos, Stephanie Seminara, Waljit S Dhillo, Jon Levine, Ei Terasawa, Ariel Negron, Allan E Herbison
The 3rd World Conference on Kisspeptin, "Kisspeptin 2017: Brain and Beyond" was held March 30-31 at the Rosen Centre Hotel in Orlando, Florida, providing an international forum for multidisciplinary scientists to meet and share cutting-edge research on kisspeptin biology and its relevance to human health and disease. The meeting built upon previous world conferences focused on the role of kisspeptin and associated peptides in the control of gonadotropin-releasing hormone (GnRH) secretion and reproduction...
April 14, 2018: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/29656045/distribution-and-morphology-of-gonadotropin-releasing-hormone-neurons-in-the-hypothalamus-of-an-induced-ovulator-the-llama-lama-glama
#14
Rodrigo A Carrasco, Jaswant Singh, Gregg P Adams
Gonadotropin-releasing hormone (GnRH) is a decapeptide involved in the regulation of reproduction in all mammals, but the distribution of GnRH neurons within the brain varies widely among species. The objective of the present study was to characterize the number and distribution of GnRH neurons in the hypothalamus and preoptic area of llamas, an induced ovulator. The brains of female llamas (n = 4) were fixed, frozen and sectioned serially every 50 microns in the transverse (coronal) plane. Every 10th section was stained for immunohistochemical detection of GnRH-positive neuron cell bodies and fibers by incubation with 3,3'-diaminobenzidine...
April 12, 2018: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29656043/pituitary-estrogen-receptor-alpha-is-involved-in-luteinizing-hormone-pulsatility-at-mid-gestation-in-the-south-american-plains-vizcacha-lagostomus-maximus-rodentia-caviomorpha
#15
Sofía Proietto, Lorena Yankelevich, Federico Martín Villarreal, Pablo Ignacio Felipe Inserra, Santiago Elías Charif, Alejandro Raúl Schmidt, Santiago Andrés Cortasa, María Clara Corso, Noelia Paula Di Giorgio, Victoria Lux-Lantos, Alfredo Daniel Vitullo, Julia Halperin, Verónica Berta Dorfman
The South American plains vizcacha, Lagostomus maximus, is a caviomorph rodent native from Argentina, Bolivia and Paraguay. It shows peculiar reproductive features like pre-ovulatory follicle recruitment during pregnancy with an ovulatory process at around mid-gestation. We have described the activation of the hypothalamic - pituitary - ovarian (HPO) axis during pregnancy. A progressive decrease of progesterone (P4) at mid-pregnancy elicits the delivery of gonadotropin-releasing hormone (GnRH) with the consequent secretion of follicle stimulating hormone (FSH) and estradiol (E2 ) followed by luteinizing hormone (LH) release resulting in follicular luteinization and the P4 concentration recover...
April 12, 2018: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29655999/ovarian-hyperstimulation-syndrome-leading-to-ventriculoperitoneal-shunt-malfunction-case-report
#16
Amit Azriel, Benjamin Fleming, Uri P Dior, Samuel Moscovici, Yuval Sufaro, Mohammed Awad, Kate Drummond
Ventriculoperitoneal shunt (VPS) insertion is a common neurosurgical procedure for hydrocephalus. Unfortunately, VPS malfunction is not uncommon, with an estimated cumulative rate of 32% at 5 years. As flow through the shunt is influenced by the pressure gradient between the ventricles and the peritoneal cavity, malfunction may be caused by elevated intra-abdominal pressure. We present a rare patient with ascites following ovarian hyperstimulation syndrome (OHSS) leading to shunt malfunction. OHSS is a potentially life-threatening complication of controlled ovarian stimulation caused by the administration of exogenous gonadotropins...
April 11, 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29653388/synchronization-treatments-previous-to-natural-breeding-anticipate-and-improve-the-pregnancy-rate-of-postpartum-primiparous-beef-cows
#17
R M Ferreira, T L Conti, R L Gonçalves, L A Souto, J N S Sales, M F Sá Filho, F M Elliff, P S Baruselli
Timed AI has become a potential tool to bypass postpartum acyclicity, yet only a small percentage of the world bovine herd is inseminated. Most females are still subjected to bull mating; therefore, the frequent occurrence of postpartum anestrus may compromise their reproductive efficiency. Thus, the aim of this study was to develop an approach that allows the early conception of postpartum primiparous beef cows that are exposed to natural breeding (NB). For this purpose, 350 primiparous Nelore cows 35-65 d postpartum were allocated into three groups: Control (no hormonal treatment), TNB (hormonal protocol for timed-NB without equine chorionic gonadotropin; eCG) and TNB + eCG (hormonal protocol for TNB with eCG) groups...
April 4, 2018: Theriogenology
https://www.readbyqxmd.com/read/29650233/bisphenol-a-exposure-and-risk-of-idiopathic-central-precocious-puberty-among-school-aged-girls-in-shanghai-china
#18
Yao Chen, Yingcan Wang, Guodong Ding, Ying Tian, Zhijun Zhou, Xiumin Wang, Lixiao Shen, Hong Huang
BACKGROUND: Bisphenol A (BPA) is a well-known and widely used endocrine disrupter, but data on its effects on childhood reproductive development are limited. OBJECTIVES: We investigated the possible relationship between exposure to BPA and idiopathic central precocious puberty (ICPP) in school-aged girls. METHODS: We conducted a 1:1 matched case-control study in Shanghai, China, between July 2011 and September 2012. This study included 136 school-aged (6 to 9 years old) girls diagnosed with ICPP and 136 controls matched for age and body mass index (BMI)...
April 9, 2018: Environment International
https://www.readbyqxmd.com/read/29649815/testicular-germ-cell-tumours-a-descriptive-analysis-of-clinical-characteristics-at-first-presentation
#19
Klaus-Peter Dieckmann, Hanna Richter-Simonsen, Magdalena Kulejewski, Raphael Ikogho, Henrik Zecha, Petra Anheuser, Uwe Pichlmeier, Hendrik Isbarn
INTRODUCTION: Clinical characteristics of testicular germ cell tumours (GCTs) apparently change over time, and some vary geographically. The aim of this study is to document the clinical profile of contemporary GCT patients. PATIENTS AND METHODS: Four hundred twenty-two Caucasian GCT-patients treated in one German centre during 2000-2017, were analysed in terms of patient-age, laterality, histology, tumour-size, clinical stages (CS), pathological (pT)-stages and serum biomarker expression...
April 12, 2018: Urologia Internationalis
https://www.readbyqxmd.com/read/29649418/roles-of-progesterone-receptor-membrane-component-1-and-membrane-progestin-receptor-alpha-in-regulation-of-zebrafish-oocyte-maturation
#20
Joseph Aizen, Yefei Pang, Caleb Harris, Aubrey Converse, Yong Zhu, Meagan A Aguirre, Peter Thomas
Although previous studies suggest membrane progesterone receptor alpha (mPRα/Paqr7) mediates 17, 20β-dihydroxy-4-pregnen-3-one (DHP) induction of oocyte maturation (OM) in zebrafish, critical information needed to establish mPRα as the receptor mediating OM, is lacking. The relative potencies of progestins and specific mPRα agonists in inducing OM matched their relative binding affinities for zebrafish mPRα, supporting its role in OM. Microinjection of pertussis toxin blocked DHP induction of OM and the progestin-induced decrease in cyclic AMP levels, suggesting mPRα activates an inhibitory G protein (Gi)...
April 9, 2018: General and Comparative Endocrinology
keyword
keyword
43416
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"