scholarly journals A 4-year study of the proportional distribution of male reproductive organ abnormalities in cattle slaughtered at Nyagatare abattoir, Eastern Rwanda

2017 ◽  
Vol 3 (4) ◽  
pp. 179-186 ◽  
Author(s):  
Erick Kandiwa ◽  
Leoncie Nyirakunzimana ◽  
Gervais Habarugira ◽  
Borden Mushonga ◽  
Alaster Samkange
Keyword(s):  
Reproductive Organ ◽  
Male Reproductive Organ ◽  
Proportional Distribution

scholarly journals Severe impairment of male reproductive organ development in a low SMN expressing mouse model of spinal muscular atrophy

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Eric W. Ottesen ◽  
Matthew D. Howell ◽  
Natalia N. Singh ◽  
Joonbae Seo ◽  
Elizabeth M. Whitley ◽  
...  
Keyword(s):  
Mouse Model ◽  
Spinal Muscular Atrophy ◽  
Muscular Atrophy ◽  
Reproductive Organ ◽  
Organ Development ◽  
Male Reproductive Organ ◽  
Severe Impairment

scholarly journals Isolation and developmental expression of male reproductive organ-specific genes in a dioecious campion, Melandrium album (Silene latifolia)

1996 ◽  
Vol 10 (4) ◽  
pp. 679-689 ◽  
Author(s):  
Sachihiro Matsunaga ◽  
Shigeyuki Kawano ◽  
Hiroyoshi Takano ◽  
Hidenobu Uchida ◽  
Atsushi Sakai ◽  
...  
Keyword(s):  
Reproductive Organ ◽  
Silene Latifolia ◽  
Developmental Expression ◽  
Male Reproductive Organ ◽  
Melandrium Album ◽  
Organ Specific

scholarly journals Curcumin Effectivity on Hepar and Reproductive Organ Recovery Male Mice (Mus musculus L) after Methoxychlor Exposure

Biota ◽  
2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Mahriani Mahriani ◽  
Susantin Fajariyah ◽  
Eva Tyas Utami
Keyword(s):  
Mus Musculus ◽  
Sertoli Cells ◽  
Leydig Cells ◽  
Reproductive Organ ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Disruptive Effect ◽  
Curcumin Treatment ◽  
Cell Counts ◽  
Male Reproductive Organ

Methoxychlor (MXC) is an insecticide (DDT derivates) that has the potential for bioaccumulation in mammal and causes a disruptive effect on the hepar and reproductive system. This study was done to find out the benefits of curcumin as a natural ingredient to overcome the negative impact of Methoxychlor (MXC) on hepar and male reproductive organ of Balb’C mice (Mus musculus L). The study was carried out in a Completely Randomized Design (CRD) Posttest Only Control Group Design used four treatments and six replications. The curcumin treatment after administration of MXC was carried out by gavage with curcumin doses: 0.05; 0,1; and 0.2 mg/g body weight, every day for two weeks, respectively. Histological observations of the liver, and testis was performed using the paraffin method and Hematoxylin Eosin stained. The results showed that MXC exposure caused liver disruption by increasing the number of pycnotic necrotic hepatocytes and hydrophic degeneration hepatocytes. On the male reproductive organ, MXC caused testis impairment by reducing the number of Sertoli cells and Leydig cells, spermatogenic cell counts, and the diameter of seminiferous tubules. The administration of curcumin at doses of 0.1 mg/g bw in mice exposed to methoxychlor can reduce the number of hydrophic degeneration hepatocytes and tend to reduce the number of pycnotic hepatocytes; and also increase the number of Sertoli cells, the number of spermatogenic cells, and the diameter of the seminiferous tubules, and tend to reduce the amount of Leydig cells. Curcumin treatment tends to recover hepar dan testis disruption of mice that were exposed by MXC.

scholarly journals Anatomy of the Male Reproductive Organ of Water Monitor Lizard, Varanus salvator bivittatus (Reptil: Varanidae)

2019 ◽  
Author(s):  
mahfud
Keyword(s):  
Reproductive Organs ◽  
Reproductive Organ ◽  
Male Reproductive Organ ◽  
Monitor Lizard ◽  
Varanus Salvator ◽  
Biological Aspects ◽  
Male Reproductive Organs ◽  
Monitor Lizards ◽  
Almost All ◽  
Asian Water

One of the majority species of Varanidae is Varanus salvator or which commonly known as water monitor lizards (water monitor) or Asian water monitor lizard. This species is the most widely spread out of the all varanids. In Indonesia, V. salvator are distributed in almost all islands, from Sumatra, Java, Sulawesi, Maluku and Flores. Subspecies V. s. bivittatus was found only in Java, Bali and South East Islands [1]. The information on reproductive biological aspects of the V. s. bivittatus, especially the male reproductive organs is limited. Therefore, the study was aim to explore the male reproductive organs system of V. s. bivittatus that focused on macroscopic evaluation. Two adult male lizards with 45.60 cm SVL from Bogor area were used in this study. The lizard were anesthetized and exanguinated to sacrifice and fixed in 4 % paraformaldehyde through perfusion then followed by visceral observation and morphometric carefully measurement. All the observation finding and collected data were analyzed descriptively and presented in the form of tables and figures. Morphometric data were tabulated in the form of the average (mean) ± standard deviation (SD). Male reproductive organs of the V. s. bivittatus were generally similar to other reptiles such as snakes and lizards, with characteristics a pair of hemipenes. Epididymis was not formed of head, body and radix segment. The deferent duct is a small, straight and short duct which connected the epididymis to cloaca.

scholarly journals The Male Reproductive Structure and Spermatogenesis of Trypophloeus Klimeschi Eggers (Coleoptera: Curculionidae: Scolytinae)

2019 ◽  
Author(s):  
Jing Gao ◽  
Guanqun Gao ◽  
Lulu Dai ◽  
Jiaxing Wang ◽  
Hui Chen
Keyword(s):  
Seminal Vesicle ◽  
Reproductive Tract ◽  
Vas Deferens ◽  
Ejaculatory Duct ◽  
Reproductive Organ ◽  
Accessory Gland ◽  
Male Reproductive Tract ◽  
Short Branch ◽  
Male Reproductive Organ ◽  
Dense Band

Abstract Background Trypophloeus Klimeschi Eggers (Coleoptera: Curculionidae: Scolytinae) is one of the most destructive pests of Populus alba var. pyramidalis (Bunge), resulting in significant losses in economic, ecological and social benefits in China’s northwest shelter forest. But research of reproductive system, spermiogenesis and spermatozoon ultrastructure of T. klimeschi that is basis of phylogeny, reproductive biology and controlling is still black. Results The male reproductive organ of T. klimeschi is composed of testis, seminal vesicle, strand shaped accessory gland containing long branch of strand shaped accessory gland and short branch of strand shaped accessory gland, curly accessory gland, vas deferens and a common ejaculatory duct. The number of sperm per cyst is 350~512. Its spermatozoon is slender, measuring about 75 μm in length and 0.5 μm in wide and composed of a 3-layred acrosomal complex, a nucleus with two different states of aggregation, two mitochondrial derivatives with dark crystal, a 9+9+2 axoneme that run more or less parallel to mitochondrial derivatives, two crystalline accessory bodies with a big compact “puff”-like expansion. Especially in the seminal vesicle, its long flagella folded into several turns and the whole sperm is wrapped in a film.Conclusion The general morphology of male reproductive tract, the spermatogenesis and the spermatozoa of T. klimeschi are, for the most part, similar to the majority of the Curculionidae. However, some distinct differences were found: the low electron-dense band in the cytoplasm of spermatocytes; two different aggregation states of spermatozoon nucleus; especially the stored way of T. klimeschi spermatozoa.

Mating senescence and male reproductive organ size in the Mexican fruit fly

2016 ◽  
Vol 42 (1) ◽  
pp. 26-35 ◽  
Author(s):  
Martha Reyes-Hernández ◽  
Diana Pérez-Staples
Keyword(s):  
Fruit Fly ◽  
Reproductive Organ ◽  
Organ Size ◽  
Mexican Fruit Fly ◽  
Male Reproductive Organ

scholarly journals Studi Literatur Perbedaan Ekspresi Messenger Ribonucleid Acid (mRNA) Reseptor Androgen Setelah Pemberian Testosteron antara Penis dan Kelenjar Prostat Tikus Wistar Jantan (Rattus Norvegicus) Pascakastrasi

2019 ◽  
Vol 6 (1) ◽  
pp. 29
Author(s):  
Luh Ari Arini
Keyword(s):  
Androgen Receptor ◽  
Mrna Expression ◽  
Androgen Receptors ◽  
Prostate Gland ◽  
Reproductive Organ ◽  
Target Organ ◽  
Normal Prostate ◽  
Receptor Mrna ◽  
Male Reproductive Organ ◽  
The Difference

Background: Aging process (andropause) in men will cause a decrease in testosterone hormones, in other that decrese of androgen receptor (testosteron and dhyhidrtestosterone) in target organ, can be seen from AR mRNA expression. Andropause finaly impact of male reproductive organ, so given testosterone hormone therapy is important to restore the condition. Giving testosterone hormone causes increase the expression of AR mRNA in the prostate gland and penis, but in these two organs there is a different increase.Objective: to know the difference of expression AR mRNA after administration of testosterone between prostate gland and penis.Method: This article used literature review from database of intisari sains medis.Results and Discussion: AR mRNA expression in the prostate gland is smaller than the penile tissue, due to the prostate gland in addition to the 5α reductase enzyme there are also many aromatase enzymes. In the normal prostate gland the amount of 5α reductase is small, so the addition of testosterone is converted to DHT but also in aromatization to estrogen. Therefore, fewer androgen receptors are found compared to the tissue of the penis, in addition expression of AR mRNA in the preputial penis is higher than the prostate gland.Conclusion: Penile tissue is more responsive to testosterone and improves the function and maintenance of tissue especially in old. Keywords: androgen receptor mRNA; testosterone; penis and prostate

Sign in / Sign up

Export Citation Format

Share Document