keyword
MENU ▼
Read by QxMD icon Read
search

Onset puberty

keyword
https://www.readbyqxmd.com/read/29353265/growth-sexual-and-bone-development-in-a-boy-with-bilateral-anorchia-under-testosterone-treatment-guided-by-the-development-of-his-monozygotic-twin
#1
Sara Vandewalle, Eva Van Caenegem, Margarita Craen, Youri Taes, Jean-Marc Kaufman, Guy T'Sjoen
BACKGROUND: Sex steroids are essential for sexual maturation, linear growth and bone development. However, there is no consensus on the optimal timing, dosage and dosage interval of testosterone therapy to induce pubertal development and achieve a normal adult height and bone mass in children with hypogonadism. CASE PRESENTATION: A monozygotic monochorial male twin pair, of which one boy was diagnosed with anorchia at birth due to testicular regression syndrome was followed from the age of 3 until the age of 18 years...
January 20, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/29353264/response-to-growth-hormone-treatment-in-very-young-patients-with-growth-hormone-deficiencies-and-mini-puberty
#2
Semra Çetinkaya, Şükran Poyrazoğlu, Firdevs Baş, Oya Ercan, Metin Yıldız, Erdal Adal, Abdullah Bereket, Saygın Abalı, Zehra Aycan, Şenay Savaş Erdeve, Merih Berberoğlu, Zeynep Şıklar, Meltem Tayfun, Şükran Darcan, Eda Mengen, İffet Bircan, Filiz Mine Çizmecioğlu Jones, Enver Şimşek, Esra Deniz Papatya, Mehmet Nuri Özbek, Semih Bolu, Ayhan Abacı, Muammer Büyükinan, Feyza Darendeliler
BACKGROUND: The aim of the study was to assess the response to growth hormone (GH) treatment in very young patients with GH deficiency (GHD) through a national, multi-center study. Possible factors affecting growth response were assessed (especially mini-puberty). METHODS: Medical reports of GHD patients in whom treatment was initiated between 0 and 3 years of age were retrospectively evaluated. RESULTS: The cohort numbered 67. The diagnosis age was 12...
January 20, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/29315373/female-offspring-from-chronic-hyperandrogenemic-dams-exhibit-delayed-puberty-and-impaired-ovarian-reserve
#3
Zhiqiang Wang, Mingjie Shen, Ping Xue, Sara A DiVall, James Segars, Sheng Wu
Female offspring of many species exposed to high doses of androgens in utero experience endocrine dysfunction during adulthood. The phenotype of offspring from females with pre-pregnancy hyperandrogenemia and impaired ovulation, however, has not been examined. We developed a mouse model of hyperandrogenemia by implanting a low dose dihydrotestosterone (DHT) pellet 15 days before conception. The serum DHT levels in dams treated with the pellet were 1.7 to 2 fold higher (p<0.005) than levels in dams without DHT...
January 5, 2018: Endocrinology
https://www.readbyqxmd.com/read/29310614/preterm-birth-and-the-timing-of-puberty-a-systematic-review
#4
Evlyn James, Claire L Wood, Harish Nair, Thomas C Williams
BACKGROUND: An estimated 11% of births occur preterm, and survival is improving. Early studies suggested an association between preterm birth and earlier puberty. Given the adverse outcomes associated with early puberty this could have significant public health implications. The objective of this review was to assess the timing of puberty after preterm birth. METHODS: Pubmed, Embase, Popline, Global Health and Global Health Library were searched using terms relating to "premature birth", "menarche", "puberty" and "follow up studies"...
January 8, 2018: BMC Pediatrics
https://www.readbyqxmd.com/read/29300862/reproductive-alterations-in-chronically-exposed-female-mice-to-environmentally-relevant-doses-of-a-mixture-of-phthalates-and-alkylphenols
#5
Daniel Patiño-García, Leonor Cruz-Fernandes, Julio Buñay, Jaime Palomino, Ricardo D Moreno
Endocrine-disrupting chemicals (EDCs) are exogenous compounds that modify hormone biosynthesis, causing adverse effects to human health. Among them, phthalates, and alkylphenols are important due to their wide use in plastics, detergents, personal care products, cosmetics and food packaging. However, their conjoint effects over reproductive female health have not been addressed. The aim of this work was to test the effect of chronically exposed female mice to a mixture of three phthalates [bis (2-ethylhexyl), dibutyl and benzyl butyl] and two alkylphenols [4-nonylphenol and 4-tert-octylphenol], from conception to adulthood at environmentally relevant doses...
December 28, 2017: Endocrinology
https://www.readbyqxmd.com/read/29298283/kisspeptin-permits-the-sexual-development-of-female-rats-with-normal-and-precocious-puberty-but-is-not-a-trigger-for-it
#6
Wei Song, Kailin Li, Chao Sun, Jiang Xue
OBJECTIVE: We inferred how KISS-1/GPR54 system to involved in precocious puberty by observing hormones level during the process of precocious puberty in model and normal rats during sexual development and the estrus cycle. METHOD: Female rats were divided randomly into CPP and control groups; the former were injected with NMDA twice daily, and control groups were injected with saline. Blood and tissue samples were collected and measured during the stages of prepuberty, vaginal opening, estrus, proestrus and diestrus...
December 4, 2017: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/29285950/prrt2-mutations-in-a-cohort-of-chinese-families-with-paroxysmal-kinesigenic-dyskinesia-and-genotype-phenotype-correlation-reanalysis-in-literatures
#7
Guohua Zhao, Xiaomin Liu, Qiong Zhang, Kang Wang
PURPOSE OF THE STUDY: Though rare, children are susceptible to paroxysmal dyskinesias (PxDs) such as paroxysmal kinesigenic dyskinesia (PKD), and infantile convulsions and choreoathetosis (ICCA, also termed PKD/IC). PKD is characterized by recurrent attacks of involuntary movements mostly starting around puberty, and PKD/IC also presents with clusters of non-febrile seizures at ages between 3 and 12 months in addition to symptoms of PKD. Recent studies showed that the cause of PKD or PKD/IC could be proline-rich transmembrane protein 2 (PRRT2) gene mutations...
December 29, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/29282125/food-restriction-during-pregnancy-and-female-offspring-fertility-adverse-effects-of-reprogrammed-reproductive-lifespan
#8
Abdel Halim Harrath, Abdulkarem Alrezaki, Lamjed Mansour, Saleh H Alwasel, Stefano Palomba
BACKGROUND: Food restriction during pregnancy can influence the health of the offspring during the adulthood. The aim of the present study was to examine the effect of maternal food restriction (MFR) on the reproductive performance in female rat offspring from the first (FR1) and second (FR2) generations. METHODS: Adult virgin Wistar female rats were given free access to tap water and were fed ad libitum on standard rodent chow, were mated with virgin adult males, and then were randomly divided into two groups: controls (that was fed ad libitum ) and food-restricted group (FR, that was given only 50% of ad libitum food throughout gestation)...
December 28, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29280737/a-critical-appraisal-of-the-effect-of-gonadotropin-releasing-hormon-analog-treatment-on-adult-height-of-girls-with-central-precocious-puberty
#9
Abdullah Bereket
Central precocious puberty (CPP) is a diagnosis that pediatric endocrinologists worldwide increasingly make in girls of age 6-8 years and is mostly idiopathic. Part of the reason for increasing referral and diagnosis is the perception among the doctors as well as the patients that treatment of CPP with long-acting gonadotropin-releasing hormon analogues (GnRHa) promote height of the child. Although, the timing and the tempo of puberty does influence statural growth and achieved adult height, the extent of this effect is variable depending on several factors and is modest in most cases...
December 27, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/29261233/evaluation-of-the-estrous-cycle-reproductive-tract-and-mammary-gland-in-female-mice
#10
Justin D Vidal, Adam J Filgo
Evaluation of the female reproductive system is an important part of basic reproductive biology research, toxicology testing, and mutant mouse phenotype assessment. The female reproductive system is dynamic and the onset of puberty and the normal changes observed during estrous cyclicity can create challenges for an investigator. Experimental work in the female mouse requires an understanding of the potential impact of the estrous cycle and tracking normal changes throughout the cycle allows for control of this key variable...
December 20, 2017: Current Protocols in Mouse Biology
https://www.readbyqxmd.com/read/29245288/elevated-serum-lipoprotein-a-as-a-risk-factor-for-combined-intracranial-and-extracranial-artery-stenosis-in-a-child-with-arterial-ischemic-stroke-a-case-report
#11
Ji Yoon Han, Hyun Jeong Kim, Soyoung Shin, Joonhong Park, In Goo Lee
RATIONALE: Stroke is an uncommon disease in childhood with an estimated incidence of 1 to 6 per 100,000 and stenoocclusive arteriopathy is the main risk factor of recurrent pediatric arterial ischemic stroke (AIS). Dyslipidemia may influence strongly before puberty and in late adolescence when plasma levels are naturally highest. PATIENT CONCERNS: An 11-year-old male presented with acute onset seizure, a drowsy mentality, and right hemiplegia. DIAGNOSES: Magnetic resonance (MR) angiogram demonstrated occlusion of distal basilar artery and left vertebral arteries...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29244106/psychosocial-support-for-adolescent-girls-in-post-conflict-settings-beyond-a-health-systems-approach
#12
Fiona Samuels, Nicola Jones, Bassam Abu Hamad
Adaptive and adequately resourced health systems are necessary to achieve good health outcomes in post-conflict settings, however domains beyond the health system are also critical to ensure broader wellbeing. This paper focuses on the importance of psychosocial support services for adolescent girls in fragile contexts. Its starting point is that adolescence is a pivotal time in the life course but given the physical, cognitive and emotional changes triggered by the onset of puberty, it can also be a period of heightened sensitivity and vulnerability to trauma, social isolation, bullying by peers, a lack of supportive adults and gender-based and sexual violence...
December 1, 2017: Health Policy and Planning
https://www.readbyqxmd.com/read/29228316/identification-of-a-critical-window-for-ganciclovir-induced-disruption-of-testicular-development-in-rats
#13
Katlyn Barp Meyer, Anderson Joel Martino Andrade, Amanda Caroline Venturelli, Diogo Henrique Kita, Dária Louise Barbosa Machado, Rafaela Adams Philipsen, Alluanan Adelson do Nascimento Silva, Isabelle Cantão, Davyson Moreira, Valdemiro Amaro da Silva Junior, Taiza Stumpp, Rosana Nogueira Morais
Ganciclovir (GCV) has been implicated in the development of testicular alterations. Exposure on gestational day (GD) 10 in rats induced permanent effects, including focal reduction or absence of germ cells (Sertoli cell-only tubules). Because the timing of exposure can be critical for testicular effects, we exposed rat dams to 300 mg/kg GCV (three 100mg/kg subcutaneous injections) on GD10, 14 and 19, when germ cells have high rates of migration, proliferation and are mitotically quiescent, respectively. Males exposed to GCV in utero on GD10 and 14 were evaluated for androgenization markers, serum and fecal androgens, and testicular histomorphometry at adulthood...
December 7, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29226466/childhood-onset-cluster-headache-observations-from-a-personal-case-series-and-review-of-the-literature
#14
Arens Taga, Gian Camillo Manzoni, Marco Russo, Maria Vittoria Paglia, Paola Torelli
BACKGROUND/OBJECTIVES: Puberty seems to be a turning point in cluster headache (CH) onset. To verify its influence on CH phenotype, we focused on cases with onset ≤13 years. A review of the literature follows. METHOD: We considered CH cases with age-of-onset ≤13 years evaluated at our center between 1975 and 2015; these cases were matched by sex to two consecutive patients with age-of-onset as close as possible (±2 years) to the median age-of-onset of the overall CH population...
December 11, 2017: Headache
https://www.readbyqxmd.com/read/29222425/polymorphisms-in-jmjd1c-are-associated-with-pubertal-onset-in-boys-and-reproductive-function-in-men
#15
Nina Mørup, Alexander Siegfried Busch, Anne Kirstine Bang, Loa Nordkap, John E Nielsen, Ewa Rajpert-De Meyts, Anders Juul, Niels Jørgensen, Kristian Almstrup
JMJD1C, a member of the Jumonji-domain containing histone demethylases protein family, has been associated with levels of sex-hormone binding globulin (SHBG) and testosterone in men, and knock-out rodent models show age-dependent infertility. The objective of this study was to investigate whether single nucleotide polymorphisms (SNPs) nearby JMJD1C are associated with pubertal onset in boys and with male reproduction. 671 peri-pubertal boys, 1,027 young men, 315 fertile men, and 252 infertile men were genotyped for two JMJD1C SNPs (rs7910927 and rs10822184)...
December 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29208781/ephebodontics-a-little-known-branch-of-dentistry
#16
Alagirisamy Venkatesh, Govindarajan Sujatha, Jayanandan Muruganandhan, Shankargouda Patil, A Thirumal Raj
Adolescence is an age group defined from the onset of puberty to establishment of social independence. Chronologically it is defined as the age of 10 to 18 years but social and behavioral situations may dictate vari-ability.1 Ephebodontics is the term coined for adolescent dentistry in the April 1969 issue of Dental Clinics of North America. The dental needs of adolescents differ largely from other established age groups. There are anomalous physical, emotional, and psychological changes in adolescents that need specific health care protocol...
December 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29207397/relationship-of-serum-fetuin-a-with-metabolic-and-clinical-parameters-in-german-children-and-adolescents-with-type-1-diabetes
#17
Christina Reinauer, Thomas Reinehr, Christina Baechle, Beate Karges, Julia Seyfarth, Katharina Foertsch, Martin Schebek, Joachim Woelfle, Michael Roden, Reinhard W Holl, Joachim Rosenbauer, Thomas Meissner
BACKGROUND AND AIM: The hepatokine fetuin A is upregulated in the metabolic syndrome and in type 2 diabetes (T2D), while its role in adolescent type 1 diabetes (T1D) is unclear. We assessed the relationship between circulating fetuin A levels and metabolic control, comorbidities, and complications in adolescent T1D patients. METHODS: We studied the relationship between serum fetuin A and clinical diabetes-related data from the DPV registry (Diabetes-Pa-tienten-Verlaufsdokumentation) in 172 adolescent T1D patients with early-onset (<5 years) long-standing (>10 years) T1D...
December 5, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/29201072/the-role-of-kisspeptin-in-female-reproduction
#18
REVIEW
Sareh Zeydabadi Nejad, Fahimeh Ramezani Tehrani, Azita Zadeh-Vakili
Context: Kisspeptin (KISS1), a recently discovered neuropeptide that acts upstream of gonadotropin-releasing hormone (GnRH) neurons, is critical for maturation and function of the reproductive axis. This review aimed at providing comprehensive and up-to-date information on Kisspeptin and its role in female reproduction. Evidence Acquisition: A literature review was performed using PubMed for all English language articles published between 1999 and 2016. Results: The kisspeptin system (KISS1/G protein-coupled receptor-54,GPR54) has recently been addressed as an essential gatekeeper of puberty onset and gonadotropin secretion...
July 2017: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29201065/a-medical-calculator-to-determine-testicular-volumes-matching-ultrasound-values-from-the-width-of-the-testis-obtained-in-the-scrotum-with-a-centimeter-ruler
#19
Juan F Sotos, Naomi J Tokar
The determination of the testicular volume is of considerable importance to assess the onset, progression and disorders of puberty, abnormal testicular development, and a number of other conditions; and in adults, assessment of fertility. A number of clinical methods have been used for the measurement of testicular volumes in the scrotum: a centimeter ruler, sliding calipers, and orchidometers. All the clinical methods calculate the volumes by the ellipsoid equation, grossly overestimate ultrasound (US) volumes by 70 to 80% for adults, to 150 to 250% for prepubertal subjects, mainly because the inclusion of the scrotal skin and epididymis and may not be accurate of reproducible...
2017: International Journal of Pediatric Endocrinology
https://www.readbyqxmd.com/read/29198419/disruption-of-the-gh-receptor-gene-in-adult-mice-and-in-insulin-sensitive-tissues
#20
Silvana Duran-Ortiz, Vanessa Noboa, John J Kopchick
To elucidate whether a specific tissue is responsible for the beneficial health and longevity phenotype seen in growth hormone (GH) receptor (R) knockout (GHRKO) mice, the GHR gene was disrupted specifically in insulin sensitive tissues; namely, liver, adipose, and muscle. Furthermore, to investigate if the health- and life-span effects seen in the germline GHRKO mice were replicated when GH action was ablated after puberty; young, adult onset GHRKO mice were produced and characterized. In this review, we summarized the main findings derived from these mouse lines...
November 24, 2017: Growth Hormone & IGF Research
keyword
keyword
73468
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"