keyword
MENU ▼
Read by QxMD icon Read
search

Early normal puberty

keyword
https://www.readbyqxmd.com/read/29618062/45-x-46-xy-mosaicism-presenting-with-isolated-unilateral-cryptorchidism-and-a-normal-blood-karyotype
#1
Grazia Morandi, Manuela Cerbone, Elisa B Lamback, Eleni Rapti, Mehul T Dattani
Context: 45,X/46,XY mosaicism is a disorder of sex development leading to abnormal gonadal development and to unpredictable genital phenotype, growth and pubertal development. Case Description: A two year old male presented with a right impalpable testis. Blood karyotype was 46,XY. A laparoscopy performed for right orchidopexy revealed a right streak gonad with Mullerian structures, while on the left side a normal descended testis was present. The karyotype of the removed gonad was 45,X/46,XY...
March 30, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29618044/analysis-of-sensitive-periods-of-fetal-and-child-growth
#2
Xun Zhang, Kate Tilling, Richard M Martin, Emily Oken, Ashley I Naimi, Izzuddin M Aris, Seungmi Yang, Michael S Kramer
Background: Birth weight and weight gain in infancy and early childhood are commonly studied as risk factors for later cardiometabolic diseases. In this study, we explore methods for quantifying weight gain during different age periods and for comparing the magnitude of the associations with later blood pressure. Methods: Based on data from a birth cohort study nested within a large cluster-randomized trial with repeated measures of weight from birth to 16 years of age, we compared the results of four analytic approaches to assess sensitive periods of growth in relation to blood pressure at age 16 years...
April 2, 2018: International Journal of Epidemiology
https://www.readbyqxmd.com/read/29617589/change-in-overweight-from-childhood-to-early-adulthood-and-risk-of-type-2-diabetes
#3
Lise G Bjerregaard, Britt W Jensen, Lars Ängquist, Merete Osler, Thorkild I A Sørensen, Jennifer L Baker
BACKGROUND: Childhood overweight is associated with an increased risk of type 2 diabetes in adulthood. We investigated whether remission of overweight before early adulthood reduces this risk. METHODS: We conducted a study involving 62,565 Danish men whose weights and heights had been measured at 7 and 13 years of age and in early adulthood (17 to 26 years of age). Overweight was defined in accordance with Centers for Disease Control and Prevention criteria. Data on type 2 diabetes status (at age ≥30 years, 6710 persons) were obtained from a national health registry...
April 5, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29575542/the-stressed-brain-of-humans-and-rodents
#4
REVIEW
M Joëls, H Karst, R A Sarabdjitsingh
After stress, the brain is exposed to waves of stress mediators, including corticosterone (in rodents) and cortisol (in humans). Corticosteroid hormones affect neuronal physiology in two time-domains: rapid, non-genomic actions primarily via mineralocorticoid receptors; and delayed genomic effects via glucocorticoid receptors. In parallel, cognitive processing is affected by stress hormones. Directly after stress, emotional behaviour involving the amygdala is strongly facilitated with cognitively a strong emphasis on the "now" and "self," at the cost of higher cognitive processing...
March 25, 2018: Acta Physiologica
https://www.readbyqxmd.com/read/29554994/review-the-effect-of-nutrition-on-timing-of-pubertal-onset-and-subsequent-fertility-in-the-bull
#5
D A Kenny, C J Byrne
The advent of genomic selection has led to increased interest within the cattle breeding industry to market semen from young bulls as early as possible. However, both the quantity and quality of such semen is dictated by the age at which these animals reach puberty. Enhancing early life plane of nutrition of the bull stimulates a complex biochemical interplay involving metabolic and neuroendocrine signalling and culminating in enhanced testicular growth and development and earlier onset of sexual maturation...
March 20, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29529566/determining-the-presence-of-chemicals-with-suspected-endocrine-activity-in-drinking-water-from-the-madrid-region-spain-and-assessment-of-their-estrogenic-androgenic-and-thyroidal-activities
#6
Y Valcárcel, A Valdehíta, E Becerra, M López de Alda, A Gil, M Gorga, M Petrovic, D Barceló, J M Navas
Endocrine disruptors (EDs) are natural or man-made chemicals that can affect the health of organisms by interfering with their normal hormonal functions. Many of these substances can cause their effects at very low doses and, considering the key role played by the endocrine system on development, organisms in early phases of growth (foetal, childhood, puberty) are especially sensitive to the action of EDs. In addition, when combined, they can show additive, antagonistic and synergistic activities. Taking all this into account it is essential to determine the presence of this kind of compounds in drinking water...
February 22, 2018: Chemosphere
https://www.readbyqxmd.com/read/29525066/-diffuse-hypertrichosis-revealing-non-classical-congenital-adrenal-hyperplasia
#7
C Berthin, P Sibilia, J Martins-Hericher, A Donzeau, L Martin
BACKGROUND: Non-classical congenital adrenal hyperplasia (NC-CAH) is a recessive autosomal disease caused by a deficiency of adrenal steroidogenesis enzymes. It must be distinguished from classical CAH, either simple virilising or salt-wasting, diagnosed during the neonatal period and responsible for potentially lethal disorders of sexual differentiation. NC-CAH presents a simpler and less specific clinical picture. Herein, we present two cases comprising twin girls consulting for diffuse hypertrichosis...
March 7, 2018: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/29452377/discordance-in-the-dependence-on-kisspeptin-signaling-in-mini-puberty-vs-adolescent-puberty-human-genetic-evidence
#8
Muhammad Shahab, Margaret Lippincott, Yee-Ming Chan, Addie Davies, Paulina M Merino, Lacey Plummer, Veronica Mericq, Stephanie Seminara
Context: Hypothalamic kisspeptin signaling plays a critical role in the initiation and maintenance of reproductive function. Biallelic mutations in the coding sequence of KISS1R (GPR54) have been identified in patients with idiopathic hypogonadotropic hypogonadism (IHH), but it is unknown whether biallelic variants can also be associated with related reproductive disorders. Case description: A missense homozygous variant (c.890G>T p.R297L) in KISS1R was identified in a child who presented with microphallus and bilateral cryptorchidism...
February 14, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29450569/pharmacogenomics-in-diabetes-outcomes-of-thiamine-therapy-in-trma-syndrome
#9
Abdelhadi M Habeb, Sarah E Flanagan, Mohamed A Zulali, Mohamed A Abdullah, Renata Pomahačová, Veselin Boyadzhiev, Lesby E Colindres, Guillermo V Godoy, Thiruvengadam Vasanthi, Ramlah Al Saif, Aria Setoodeh, Amirreza Haghighi, Alireza Haghighi, Yomna Shaalan, Andrew T Hattersley, Sian Ellard, Elisa De Franco
AIMS/HYPOTHESIS: Diabetes is one of the cardinal features of thiamine-responsive megaloblastic anaemia (TRMA) syndrome. Current knowledge of this rare monogenic diabetes subtype is limited. We investigated the genotype, phenotype and response to thiamine (vitamin B1 ) in a cohort of individuals with TRMA-related diabetes. METHODS: We studied 32 individuals with biallelic SLC19A2 mutations identified by Sanger or next generation sequencing. Clinical details were collected through a follow-up questionnaire...
February 15, 2018: Diabetologia
https://www.readbyqxmd.com/read/29429771/gonocyte-transformation-in-a-congenitally-cryptorchid-rat-is-normal-and-may-be-similar-to-the-situation-reported-in-human-acquired-cryptorchidism
#10
Moshe Loebenstein, John Hutson, Ruili Li
BACKGROUND: In congenital undescended testis (UDT) in humans, thermal insult damages early germ cell development during mini-puberty (3-6months) causing increased risk of both cancer and infertility. In rodents however, UDT causes infertility but not cancer. In the TS rat with congenital UDT we hypothesized that early germ cell development would be normal as UDT only becomes manifest at 3-4weeks (and the germ cells only become sensitive to thermal injury) after minipuberty is complete at 1week...
January 31, 2018: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/29415703/fsh-may-be-a-useful-tool-to-allow-early-diagnosis-of-turner-syndrome
#11
Stela Carpini, Annelise Barreto Carvalho, Sofia Helena Valente de Lemos-Marini, Gil Guerra-Junior, Andréa Trevas Maciel-Guerra
BACKGROUND: Ultrasensitive assays to measure pre-pubertal gonadotropins levels could help identify patients with Turner syndrome (TS) in mid-childhood, but studies in this field are scarce. The aim of this study was to analyze gonadotropins levels in girls with TS throughout childhood. METHODS: Retrospective longitudinal study conducted with 15 girls with TS diagnosed with < 5 years whose FSH and LH measures were available since then. Hormones were evaluated in newborn/mini-puberty (< 0...
February 7, 2018: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/29353264/response-to-growth-hormone-treatment-in-very-young-patients-with-growth-hormone-deficiencies-and-mini-puberty
#12
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 26, 2018: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/29300925/progesterone-mediated-inhibition-of-the-gnrh-pulse-generator-differential-sensitivity-as-a-function-of-sleep-status
#13
Su Hee Kim, Jessica A Lundgren, Ruchi Bhabhra, Jessicah S Collins, James T Patrie, Christine M Burt Solorzano, John C Marshall, Christopher R McCartney
Context: During normal, early puberty, luteinizing hormone (LH) pulse frequency is low while awake but increases during sleep. Mechanisms underlying such changes are unclear, but a small study in early pubertal girls suggested that differential wake-sleep sensitivity to progesterone negative feedback plays a role. Objective: To test the hypothesis that progesterone acutely reduces waking LH pulse frequency more than sleep-associated pulse frequency in late pubertal girls...
March 1, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29184488/brain-maturation-cognition-and-voice-pattern-in-a-gender-dysphoria-case-under-pubertal-suppression
#14
Maiko A Schneider, Poli M Spritzer, Bianca Machado Borba Soll, Anna M V Fontanari, Marina Carneiro, Fernanda Tovar-Moll, Angelo B Costa, Dhiordan C da Silva, Karine Schwarz, Maurício Anes, Silza Tramontina, Maria I R Lobato
Introduction: Gender dysphoria (GD) (DMS-5) is a condition marked by increasing psychological suffering that accompanies the incongruence between one's experienced or expressed gender and one's assigned gender. Manifestation of GD can be seen early on during childhood and adolescence. During this period, the development of undesirable sexual characteristics marks an acute suffering of being opposite to the sex of birth. Pubertal suppression with gonadotropin releasing hormone analogs (GnRHa) has been proposed for these individuals as a reversible treatment for postponing the pubertal development and attenuating psychological suffering...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/29176028/higher-phthalate-concentrations-are-associated-with-precocious-puberty-in-normal-weight-thai-girls
#15
Khomsak Srilanchakon, Thawiphark Thadsri, Chutima Jantarat, Suriyan Thengyai, Wichit Nosoognoen, Vichit Supornsilchai
BACKGROUND: The cause of precocious puberty may be associated with genetics and other conditions such as central nervous system (CNS) insults, or the exposure to endocrine disrupting chemicals (EDCs). Phthalates is known to be one of the EDCs and have estrogenic and antiandrogenic activities, and may be associated with advanced puberty. The objective of the study was to determine the association between urinary phthalate metabolites and advanced puberty. METHODS: A cross-sectional study was conducted in patients with precocious puberty (breast onset <8 years, n=42) and early puberty (breast onset 8-9 years, n=17), compared to age-matched controls (n=77)...
November 27, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/29163975/on-the-descent-of-the-epididymo-testicular-unit-cryptorchidism-and-prevention-of-infertility
#16
REVIEW
Faruk Hadziselimovic
This comprehensive review provides in-depth coverage of progress made in understanding the molecular mechanisms underlying cryptorchidism, a frequent pathology first described in about 1786 by John Hunter. The first part focuses on the physiology, embryology, and histology of epididymo-testicular descent. In the last 20 years epididymo-testicular descent has become the victim of schematic drawings with an unjustified rejection of valid histological data. This part also includes discussion on the roles of gonadotropin-releasing hormone, fibroblast growth factors, Müllerian inhibiting substance, androgens, inhibin B, and insulin-like 3 in epididymo-testicular descent...
2017: Basic and Clinical Andrology
https://www.readbyqxmd.com/read/29131093/metformin-for-rapidly-maturing-girls-with-central-adiposity-less-liver-fat-and-slower-bone-maturation
#17
Francis de Zegher, Cristina García Beltrán, Abel López-Bermejo, Lourdes Ibáñez
BACKGROUND/AIMS: Girls with low-birth weight (LBW) and postnatal weight catch-up tend to develop visceral and hepatic fat excess, which may be accompanied by an upregulated adrenarche with precocious pubarche (PP) and by a rapidly progressive puberty with early menarche and shorter stature. A pilot study suggested that metformin treatment for 4 years reduces central adiposity in LBW-PP girls and normalizes puberty and adult height. In this cohort, we studied the relationship between metformin treatment, bone maturation, and body composition...
2018: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/29118296/mismatch-between-fetal-sexing-and-birth-phenotype-a%C3%A2-case-of-complete-androgen-insensitivity-syndrome
#18
Keisuke Yoshii, Yasuhiro Naiki, Yumiko Terada, Maki Fukami, Reiko Horikawa
With advancing maternal age, the number of prenatal genetic tests is increasing in many countries. Prenatal genetic tests, such as amniocentesis, chorionic villus sampling and non-invasive prenatal testing, can disclose fetal chromosomal sex, although these tests were originally designed to prenatally diagnose chromosomal aneuploidies, such as trisomy 21, 18 and 13. Complete androgen insensitivity syndrome (CAIS) is an X-linked recessive disorder caused by an androgen receptor dysfunction leading to hormone resistance...
November 9, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/29101351/programmed-cell-senescence-in-skeleton-during-late-puberty
#19
Changjun Li, Yu Chai, Lei Wang, Bo Gao, Hao Chen, Peisong Gao, Feng-Quan Zhou, Xianghang Luo, Janet L Crane, Bin Yu, Xu Cao, Mei Wan
Mesenchymal stem/progenitor cells (MSPCs) undergo rapid self-renewal and differentiation, contributing to fast skeletal growth during childhood and puberty. It remains unclear whether these cells change their properties during late puberty to young adulthood, when bone growth and accrual decelerate. Here we show that MSPCs in primary spongiosa of long bone in mice at late puberty undergo normal programmed senescence, characterized by loss of nestin expression. MSPC senescence is epigenetically controlled by the polycomb histone methyltransferase enhancer of zeste homolog 2 (Ezh2) and its trimethylation of histone H3 on Lysine 27 (H3K27me3) mark...
November 3, 2017: Nature Communications
https://www.readbyqxmd.com/read/29081501/the-effects-of-muscle-mass-and-muscle-quality-on-cardio-metabolic-risk-in-peripubertal-girls-a-longitudinal-study-from-childhood-to-early-adulthood
#20
S Cheng, P Wiklund
BACKGROUND: Increased cardio-metabolic risk is well documented in children and adolescents with obesity and normal weight obesity (NWO). However, the associations of muscle mass and muscle quality with cardio-metabolic risk, independent of weight status from childhood to adulthood, has not been examined. METHODS: A total of 236 girls were followed from pre-puberty to early adulthood. Fat mass (FM) and lean mass (LM) of the whole body were assessed by a dual-energy X-ray absorptiometry; muscle cross-sectional area (mCSA), muscle density (mDen; skeletal muscle fat content) of the lower leg by the peripheral quantitative computerized tomography; and blood glucose, insulin, triglycerides and high-density lipoprotein cholesterol by enzymatic photometric methods...
October 30, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
keyword
keyword
51796
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"