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

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.

2019 ◽  
Vol 12 (3) ◽  
pp. e228148
Author(s):  
Zareen Kiran ◽  
Tayyaba Jamil

Turner syndrome is a relatively common chromosomal abnormality presenting as primary amenorrhoea in gynaecological and endocrine clinics, caused by complete or partial X monosomy in some or all cells. Mayer-Rokitansky-Kuster-Hauser syndrome is another common cause of primary amenorrhoea characterised by Mullerian agenesis of varying degrees. We report a case of an 18-year-old girl, who presented with primary amenorrhoea, absence of secondary sexual characteristics and short stature. Hormonal profile confirms hypergonadotrophic hypogonadism. Karyotyping was consistent with Turner syndrome (45,XO). In addition, radiological imaging of the pelvis showed the absence of both ovaries as well as the uterus, cervix and vagina. This patient had therefore presented with two different syndromes as the cause of her primary amenorrhoea, which is extremely rare in a single patient. Moreover, oestrogen replacement therapy will trigger the development of secondary sexual characteristic and promote bone growth, but induction of menstruation and fertility is impossible.


Author(s):  
G.G. Hasanli ◽  

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.


1989 ◽  
Vol 67 (4) ◽  
pp. 1053-1060 ◽  
Author(s):  
Bernard Lebeau ◽  
Gérard Pageau

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.


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

2021 ◽  
pp. 113-118
Author(s):  
V. A. Melnik

Objective: to assess the constitutional features of the age dynamics of secondary sexual characteristics and functional parameters of city schoolchildren in the age range of 7–17 years.Materials and methods. The objects of the study were schoolchildren aged 7–17. The stages of the expression of secondary sexual characteristics were determined visually according to the scheme by J.M. Tanner. The functional parameters of the examined schoolchildren were assessed using the methods of dynamometry, spirometry; blood pressure and heart rates, as well as the time of simple sensorimotor reactions were measured.Results. As a result of the performed studies, it has been found that representatives of the hypersomnic types are ahead of other types to reveal the first stages of secondary sexual characteristics. Schoolchildren with the leptosomic morphotypes due to higher rates of their development have reached the definitive stages by the same age as those with the hypersomnic variants. The intensity of age-related changes in functional parameters (strength qualities, circulatory and respiratory systems, nervous system) in the studied objects depends on their body type.Conclusion. The stage and rate of puberty, as well as the development of functional parameters in city schoolchildren depends on their somatotype.


2019 ◽  
Vol 7 (1) ◽  
pp. 6
Author(s):  
Shu-Heng Huang ◽  
Daw-Yang Hwang ◽  
Shang-Jyh Hwang

17α-hydroxylase deficiency (17OHD) is a rare disorder of secondary hypertension caused by congenital adrenal hyperplasia. In addition, co-occurrence of an adrenal tumor with 17OHD is extremely rare and easily misdiagnosed. A 33-year-old female with sicca syndrome, persistent hypertension, hypokalemia, and a left adrenal tumor was referred for confirmation of primary aldosteronism. However, the absence of secondary sexual characteristics, persistent growth beyond puberty, and laboratory data of low plasma renin activity, high aldosterone, low cortisol, low sex hormones, elevated adrenocorticotropic hormone, elevated luteinizing hormone, elevated follicle-stimulating hormone, and most importantly, decreased 17-hydroxypregnenolone, supported a diagnosis of 17OHD. We sequenced the CYP17A1 gene of the patient and her parents, which demonstrated genetic defects (D487-S,488-F489 deletion and Y329K418X). 17OHD was diagnosed. The left adrenal tumor was assessed, and a non-functional adrenal incidentaloma was confirmed; NP-59 adrenal cortical scintigraphy and adrenal venous sampling showed no functional activity and non-lateralization. Hormone replacements with estrogen, spironolactone, and prednisolone were given. The patient became more feminized and confident, and her hypertension was controlled. Early diagnosis and treatment of 17OHD not only can prevent delay development of secondary sexual characteristics but also help the patient maintain mental health and improve their quality of life. In addition, the concomitant presence of a left adrenal tumor makes misdiagnosis of a functional adenoma more likely, possibly causing unnecessary surgery and delay inappropriate treatment.


2020 ◽  
pp. 095269512094119
Author(s):  
Chiara Beccalossi

Displacing the physiological model that had held sway in 19th-century medical thinking, early 20th-century hormone research promoted an understanding of the body and sexual desires in which variations in sex characteristics and non-reproductive sexual behaviours such as homosexuality were attributed to anomalies in the internal secretions produced by the testes or the ovaries. Biotypology, a new brand of medical science conceived and led by the Italian endocrinologist Nicola Pende, employed hormone research to study human types and hormone treatments to normalise individuals who did not conform to accepted medical norms. Latin American medical doctors, eugenicists, and sexologists took up biotypology with enthusiasm. This article considers the case studies of Italy, Argentina, and Brazil, and analyses the work of medical doctors who adopted a biotypological mode of reasoning and employed to various extents hormone therapies in their practice. By focusing on hormone therapies that aimed to normalise secondary sexual characteristics and the sexual instinct, the article suggests that while the existence of normality was contested to the point that a number of medical scientists argued that no such thing existed, the pursuit of normality was carried out in very practical terms through the new medical technologies hormone research had introduced.


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