scholarly journals Features of sexual development in girls with general and genital infantilism in the early reproductive period

2021 ◽  
pp. 17-21
Author(s):  
G.G. Hasanli ◽  
Keyword(s):  
Hypogonadotropic Hypogonadism ◽  
Reproductive Period ◽  
The Body ◽  
Average Weight ◽  
Moderate Degree ◽  
Conflicts Of Interests ◽  
Hypergonadotropic Hypogonadism ◽  
Secondary Sexual Characteristics ◽  
Sexual Characteristics ◽  
Secondary Sexual

Purpose — study of the severity of secondary sexual characteristics in girls with general and genital infantilism in the early reproductive period. Materials and methods. 150 girls with general and genital infantilism were examined. All examined girls underwent clinical, functional, hormonal, biochemical, radiological, genetic and laboratory tests. The average age of girls was 19.56±0.13 (17–22) years. The average weight of the examined was within 55.37±1.56 (32–98) kg, height 1.57±0.13 (1.36–1.71) m. The body-mass index was 22.5±0.48 (15–48). The severity of secondary sexual characteristics was assessed according the J. Tanner scale. Results and conclusions. It was found that adolescents with general infantilism (hypogonadotropic hypogonadism) have a significant delay in the development of secondary sexual characteristics against the background of mild hirsutism (р<0.05). In Patients with genital infantilism (hypergonadotropic hypogonadism), significant axillary and suprapubic hair growth at the background of poor development of the mammary glands was noted. Also the moderate degree of hirsutism was confirmed. With normogonadotropic hypogonadism, the development of secondary sexual characteristics corresponds to similar indicators of practically healthy girls. The research was carried out in accordance with the principles of the Helsinki Declaration. The study protocol was approved by the Local Ethics Committee of these Institutes. The informed consent of the patient was obtained for conducting the studies. The authors declare no conflicts of interests. Key words: general infantilism, genital infantilism, hypogonadotropic hypogonadism, normogonadotropic hypogonadism, hypergonadotropic hypogonadism, hirsutism.

scholarly journals Cardiac Performance of Free-Swimming Wild Sockeye Salmon during the Reproductive Period

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
T S Prystay ◽  
R de Bruijn ◽  
K S Peiman ◽  
S G Hinch ◽  
D A Patterson ◽  
...  
Keyword(s):  
Heart Rate ◽  
Sockeye Salmon ◽  
Reproductive Period ◽  
Cardiac Performance ◽  
Survival Duration ◽  
Reproductive Behaviors ◽  
Spawning Period ◽  
Secondary Sexual Characteristics ◽  
Sexual Characteristics ◽  
Secondary Sexual

Synopsis Researchers have surmised that the ability to obtain dominance during reproduction is related to an individual’s ability to better sequester the energy required for reproductive behaviors and develop secondary sexual characteristics, presumably through enhanced physiological performance. However, studies testing this idea are limited. Using sockeye salmon (Oncorhynchus nerka), we explored the relationship between heart rate and dominance behavior during spawning. We predicted that an individual’s reproductive status and energy requirements associated with dominance can be assessed by relating routine heart rate to changes in spawning status over time (i.e., shifts among aggregation, subordinance, and dominance). Thus, we used routine heart rate as a proxy of relative energy expenditure. Heart rate increased with temperature, as expected, and was higher during the day than at night, a known diel pattern that became less pronounced as the spawning period progressed. Routine heart rate did not differ between sexes and average heart rate of the population did not differ among reproductive behaviors. At the individual level, heart rate did not change as behavior shifted from one state to another (e.g., dominance versus aggregation). No other trends existed between routine heart rate and sex, secondary sexual characteristics, survival duration or spawning success (for females only). Therefore, while our study revealed the complexity of the relationships between cardiac performance and reproductive behaviors in wild fish and demonstrated the importance of considering environmental factors when exploring individual heart rate, we found no support for heart rate being related to specific spawning behavioral status or secondary sexual characteristics.

Puberty and its disorders

2020 ◽  
pp. 49-82
Author(s):  
Gary Butler ◽  
Jeremy Kirk
Keyword(s):  
Precocious Puberty ◽  
Hypogonadotropic Hypogonadism ◽  
Hormone Secretion ◽  
Central Precocious Puberty ◽  
Pituitary Tumour ◽  
Cancer Treatments ◽  
Secondary Sexual Characteristics ◽  
Sexual Characteristics ◽  
Fertility Potential ◽  
Secondary Sexual

• Puberty is defined as the acquisition of secondary sexual characteristics, with a view to reproductive capability. • Assessment of puberty can be done by Tanner stages or the puberty phases. • Timing of pubertal onset and sequence of changes is carefully controlled. • Premature sexual maturation: ◦ <8 years in girls; menarche <11 years ◦ <9 years in boys. • Central precocious puberty or gonadotropin-dependent precocious puberty: ◦ hormone secretion is similar to normal puberty ◦ may be idiopathic, genetic, or secondary to central nervous system/pituitary tumour or insult ◦ treatment is with gonadotropin-releasing hormone analogues. • Gonadotropin-independent precocious puberty (independent source of sex steroid, e.g. gonadal tumour): ◦ treatment should address the primary cause. • Late puberty: ◦ pubertal events within the later normal range. • Delayed onset of puberty: ◦ absence of secondary sexual characteristics: ■ >13 years in a girl ■ >14 years in a boy • Central causes (low follicle-stimulating hormone (FSH)/luteinizing hormone (LH)): ◦ chronic illness ◦ eating disorders ◦ physiological ◦ hypogonadotropic hypogonadism. • Peripheral causes (high FSH/LH): ◦ gonadal dysgenesis including chromosomal syndromes, e.g. Turner, Klinefelter ◦ gonadal damage including cancer treatments. • Treatment: ◦ low-dose sex hormone to induce growth and secondary sexual characteristics ◦ recombinant FSH/LH to induce fertility potential.

scholarly journals Diagnosis and management of of primary amenorrhea and female delayed puberty

2021 ◽  
Author(s):  
Satu Seppä ◽  
Tanja Kuiri-Hänninen ◽  
Elina Holopainen ◽  
Raimo Voutilainen
Keyword(s):  
Pubertal Development ◽  
Hypogonadotropic Hypogonadism ◽  
Reproductive Capacity ◽  
Breast Development ◽  
Delayed Puberty ◽  
Primary Amenorrhea ◽  
Secondary Sexual Characteristics ◽  
Sexual Characteristics ◽  
Old Females ◽  
Secondary Sexual

Puberty is the period of transition from childhood to adulthood characterized by the attainment of adult height and body composition, accrual of bone strength and the acquisition of secondary sexual characteristics, psychosocial maturation and reproductive capacity. In girls, menarche is a late marker of puberty. Primary amenorrhea is defined as the absence of menarche in ≥15-year-old females with developed secondary sexual characteristics and normal growth or that in ≥13-year-old females without signs of pubertal development. Furthermore, evaluation for primary amenorrhea should be considered in the absence of menarche three years after thelarche (start of breast development) or five years after thelarce, if that occurred before the age of 10 years. A variety of disorders in the hypothalamus-pituitary-ovarian axis can lead to primary amenorrhea with delayed, arrested or normal pubertal development. Etiologies can be categorized as hypothalamic or pituitary disorders causing hypogonadotropic hypogonadism, gonadal disorders causing hypergonadotropic hypogonadism, disorders of other endocrine glands, and congenital utero-vaginal anomalies. This article gives a comprehensive review of the etiologies, diagnostics and management of primary amenorrhea from the perspective of pediatric endocrinologists and gynecologists. The goals of treatment vary depending on both the etiology and patient; with timely etiological diagnostics fertility may be attained even in those situations where no curable treatment exists.

scholarly journals Adult Onset Isolated Hypogonadotropic Hypogonadism- a Cause of Secondary Amenorrhea

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. A777-A777
Author(s):  
Shailendra B Patel ◽  
Srujana Kamala Yada
Keyword(s):  
Genetic Disorder ◽  
Hypogonadotropic Hypogonadism ◽  
Growth Spurt ◽  
Focal Lesion ◽  
Adult Onset ◽  
Gnrh Analogues ◽  
Secondary Amenorrhea ◽  
Secondary Sexual Characteristics ◽  
Sexual Characteristics ◽  
Secondary Sexual

Abstract A 23-year-old African American female was referred for secondary amenorrhea evaluation. She attained menarche at 12 years and had regular menses. At 18 years, she used OCPs for few months, and used plan B, after which her menses stopped. She had hot flashes and sweating. She was placed on progesterone, but never had withdrawal bleeding. Review of systems was positive for intentional weight loss after her menses stopped, hair loss and nipple discharge. She denied any loss of sensation of smell. She has a PMH of asthma, anxiety and OSA. Family history was not significant for any fertility issues. She smoked cannabis after menses stopped. On physical examination, vitals were stable, BMI of 35 kg/meter2, well-developed secondary sexual characteristics, no thyromegaly, acne or hirsutism. Upon work up, CBC, CMP were normal, Urine pregnancy test was negative, gonadotropins were undetectable (FSH- &lt;0.7mIU/ml, LH- &lt;0.2mIU/ml), anti-mullerian hormone was 3.82ng/ml (WNL), Estradiol was also absent (&lt;15pg/ml), with a low Total testosterone (11ng/dl), TSH was 1.17uIU/ml, Free T4 was 1.1ng/dl, ACTH was 9.58pg/ml, Cortisol was 14.8mcg/dl, and Prolactin was 1.5ng/ml. MRI brain was normal with normal pituitary gland, no focal lesion visualized. Pelvic ultrasound showed ovaries 5.9mL and 4.6mL with multiple follicles present bilaterally. Diagnosis of adult-onset isolated hypogonadotropic hypogonadism (IHH) was made. Patient was started on estradiol patches and progesterone. IHH is a genetic disorder of defective production or action of GnRH. IHH when associated with anosmia is called Kallmann syndrome. It was first described by German American geneticist Joseph Kallmann in 1944. GnRH is a decapeptide, produced in arcuate nucleus and pre-optic nucleus of hypothalamus. GnRH stimulates anterior pituitary to secrete FSH and LH. IHH is caused due to impaired migration of GnRH neurons to brain during embryogenesis. It is inherited as autosomal or X-linked dominant or recessive. Gene mutations associated are ANOS-1, FGFR, PROK-2. It is rare in females. IHH has a broad spectrum of clinical presentation from complete absence of sexual development to partial completion of puberty. It presents with microphallus, cryptorchidism, cleft lip/palate, syndactyly, renal aplasia. In childhood presents with anosmia, hearing deficits, dental agenesis, mirror movements, short stature. During puberty, absent pubertal growth spurt, amenorrhea, lack of virilization, no secondary sexual characteristics, infertility. In partial forms, known as Adult onset or acquired form of IHH, patients have slight testicular growth, thelarche, menarche. Goals of treatment are- pubertal induction, maintenance of sexual maturation and restoration of fertility. In females, pre-puberty only estrogen is given, after puberty both estrogen and progesterone are used, for fertility, pulsatile gonadotropins or GnRH analogues are used.

scholarly journals Secondary Sexual Characteristics in the Galerucinae (Sensu Stricto) (Coleoptera: Chrysomelidae)

ISRN Zoology ◽  
2011 ◽  
Vol 2011 ◽  
pp. 1-60 ◽  
Author(s):  
M. S. Mohamedsaid ◽  
D. G. Furth
Keyword(s):  
Sensu Stricto ◽  
The Body ◽  
Line Drawings ◽  
Secondary Sexual Characteristics ◽  
Secondary Sexual Characteristic ◽  
The Family ◽  
Sexual Characteristics ◽  
Species Specific ◽  
Sexual Characteristic ◽  
Secondary Sexual

A list of 1298 species and 172 genera of Chrysomelidae from the subfamily Galerucinae (sensu stricto) with the males having at least one form of secondary sexual characteristic (SSC) is presented. The number of species amounts to 24% of the total Galerucinae presently known from all over the world—a very significant amount. The SSCs comprise various types of modified structures found on all parts of the body—head, thorax, and abdomen. They are not variable but species specific. Illustrations from selected 87 species that include 84 images and 15 line drawings showing various types of SSC are provided. The amazing array of SSCs from the Galerucinae offers a large and taxonomically diverse set of data that are not comparable with other subfamilies in the Chrysomelidae and may be useful in phylogenetic analysis of the family.

Comparative urogenital morphology and external sex determination in muskellunge, Esox masquinongy Mitchill

1989 ◽  
Vol 67 (4) ◽  
pp. 1053-1060 ◽  
Author(s):  
Bernard Lebeau ◽  
Gérard Pageau
Keyword(s):  
Ventral Surface ◽  
Northern Pike ◽  
Structural Basis ◽  
Simple Method ◽  
Esox Masquinongy ◽  
Secondary Sexual Characteristics ◽  
Sexual Characteristics ◽  
Spawning Behaviour ◽  
Accurate Indicator ◽  
Secondary Sexual

Primary and secondary sexual characteristics in northern pike, Esox lucius Linneaus, and muskellunge, Esox masquinongy Mitchill, differ markedly. Differences in the internal urogenital anatomy include the structure of the genital ducts and the angle they form with the ventral surface. Externally, the genital and urinary ducts open directly to the environment in northern pike, whereas in muskellunge they open into a muscular papilla and then through a urogenital pore. Differences in sexual dimorphism between the two closely related esocids constitute a structural basis to explain the known differences in spawning behaviour and reproductive success. Differences in secondary sexual characteristics explain why the methods developed by Demchenko or Casselman to externally sex pike are inapplicable to muskellunge. To develop and test two external sexing techniques for muskellunge, specimens were collected from two regions in Canada from 1980 to 1987. Examination of reproductive products obtained from stripping provided an accurate indicator of sex and sexual maturity, but demonstrated serious limitations. A simple method to sex muskellunge by examination of the external urogenital morphology is described for juveniles and adults. Dissection of fish revealed that with the urogenital examination technique we sexed juveniles with a success rate of 92–98%, and adults with 100% accuracy.

The effects of phthalate and nonylphenol exposure on body size and secondary sexual characteristics during puberty

2015 ◽  
Vol 218 (7) ◽  
pp. 603-615 ◽  
Author(s):  
Jia-Woei Hou ◽  
Ching-Ling Lin ◽  
Yen-An Tsai ◽  
Chia-Huang Chang ◽  
Kai-Wei Liao ◽  
...  
Keyword(s):  
Body Size ◽  
Secondary Sexual Characteristics ◽  
Sexual Characteristics ◽  
Secondary Sexual
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