Development Testicular
Mostrando 1-12 de 116 artigos, teses e dissertações.
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1. Effects of Heat Stress on the Development of GABAergic Neurons in the HPG Axis of Wenchang Chicks
ABSTRACT This study conducted an in-depth investigation on the development of GABAergic neurons and their receptors in HPG axis-related target organs of Wenchang chicks under heat stress. One-day-old healthy Wenchang chicks were randomly divided into control (CK) and heat stress (HS) groups. Chicks in the HS group were placed in a 40±0.5°C climatic chamber
Braz. J. Poult. Sci.. Publicado em: 14/11/2019
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2. Quality control and characterization of the testicles and ovaries of irradiated Anastrepha obliqua from Brazil
ABSTRACT: With the aim of making the application of the Sterile Insect Technique (SIT) feasible in the management of the West Indian fruit fly in Brazil, Anastrepha obliqua (Macquart) (Diptera: Tephritidae), a number of quality parameters required by the SIT were investigated in this study. The aim was to verify the influence of a range of doses of gamma rad
Sci. agric. (Piracicaba, Braz.). Publicado em: 01/07/2019
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3. Persistent Mullerian duct Syndrome in a Brazilian miniature schnauzer dog
Abstract: Here we describe an eight-year-old miniature schnauzer (MS) dog from Brazil with Persistent Mullerian Duct Syndrome (PMDS) and the single base pair substitution in AMHR2 exon 3, first detected in this breed in the USA. This finding is evidence of mutation dissemination to South America. In PMDS, a type of XY Disorder of Sex Development (DSD), dogs
An. Acad. Bras. Ciênc.. Publicado em: 19/06/2019
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4. Morphometric measurements of sheep fed with increasing levels of sunflower meal
ABSTRACT. The objective of this work was to evaluate the performance, body morphometric measurements and testicular development in lambs fed with different rates of sunflower meal inclusion. The animals (24) were randomly distributed in treatments with 0, 10, 20 and 30% of sunflower meal in the dry matter of the diet, in six replicates, during 56 days of con
Acta Sci., Anim. Sci.. Publicado em: 25/02/2019
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5. Star anise extracts modulation of reproductive parameters, fertility potential and DNA fragmentation induced by growth promoter Equigan in rat testes
ABSTRACT Equigan is an anabolic steroid that has been developed for veterinary use and derived from endogenous sex hormone testosterone that plays a key role in the development of male reproductive tissue as well as in puberty and spermatogenesis. The current study is aimed to investigate the possible prophylactic effect of star anise extracts (SAE) on the t
Braz. J. Pharm. Sci.. Publicado em: 07/06/2018
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6. Effect of an Organic Trace Mineral Premix on the Semen Quality, Testicular Morphology and Gene Expression Related to Testosterone Synthesis of Male Broiler Breeders
ABSTRACT In order to investigate the effect of organic trace minerals premix (OTM) on the reproductive performance of breeder roosters, a total of 240 San Huang roosters (23 weeks of age) were randomly divided into two treatments with six replicates of 20 roosters each. The first group (n = 120) was fed a basal diet containing an inorganic trace minerals pre
Rev. Bras. Cienc. Avic.. Publicado em: 2017-09
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7. The quantification of testicular cells during the postnatal development in two Caviomorph rodents: the guinea pig (Cavia porcellus) and the cutia (Dasyprocta agouti)
ABSTRACT The germinative, Sertoli and Leydig cells of two caviomorph rodents (Cavia porcellus and Dasyprocta agouti) were counted as well as the estimation of the total volume of the testis and the total volume of seminiferous tubules and interstitium in prepubertal, pubertal and adult animals. The number of spermatogonia, spermatocytes and spermatids cells
An. Acad. Bras. Ciênc.. Publicado em: 17/08/2017
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8. Ten cases with 46,XX testicular disorder of sex development: single center experience
ABSTRACT Objective To present clinical, chromosomal and hormonal features of ten cases with SRY-positive 46,XX testicular disorder of sex development who were admitted to our infertility clinic. Cases and Methods Records of the cases who were admitted to our infertility clinic between 2004 and 2015 were investigated. Ten 46,XX testicular disorder of sex
Int. braz j urol.. Publicado em: 2017-08
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9. Biometry and ultrasound evaluation of testicles and accessory glands in Santa Ines rams
ABSTRACT This work aimed to investigate the relationship between echogenicity, testicular biometry, and accessory gland biometry and evaluate the echogenicity pattern of these structures in Santa Ines rams. Fifty-four healthy Santa Ines sheep were classified into three age groups: group 1 - 3 to 5 months (pre-pubertal); group 2 - 7 to 11 months (pubertal); a
R. Bras. Zootec.. Publicado em: 2017-04
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10. A boy with Prader-Willi syndrome: unmasking precocious puberty during growth hormone replacement therapy
SUMMARY Prader-Willi syndrome (PWS) is a genetic disorder frequently characterized by obesity, growth hormone deficiency, genital abnormalities, and hypogonadotropic hypogonadism. Incomplete or delayed pubertal development as well as premature adrenarche are usually found in PWS, whereas central precocious puberty (CPP) is very rare. This study aimed to repo
Arch. Endocrinol. Metab.. Publicado em: 25/08/2016
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11. Methylation of the Sox9 and Oct4 promoters and its correlation with gene expression during testicular development in the laboratory mouse
Abstract Sox9 and Oct4 are two important regulatory factors involved in mammalian development. Sox9, a member of the group E Sox transcription factor family, has a crucial role in the development of the genitourinary system, while Oct4, commonly known as octamer binding transcription factor 4, belongs to class V of the transcription family. The expression of
Genet. Mol. Biol.. Publicado em: 04/07/2016
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12. Age-dependent expression of Pten and Smad4 genes in the urogenital system of Wistar rats
PURPOSE: To analyze Pten and Smad4 gene expression in the urogenital system of Wistar rats in differents ages. METHODS: Pten and Smad4 mRNA expression was assessed in the bladder, ventral prostate, testis, ovaries, and uterus by real-time PCR. Statistical analysis using the ANOVA (p<0.05). RESULTS: Pten levels showed a progressive age-dependent increase in
Acta Cir. Bras.. Publicado em: 2014