scholarly journals Histology and Histometric Anatomy of the Male Reproductive System of Bat (Eidolon helvum)

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
A. Danmaigoro ◽  
J. E. Onu ◽  
M. L. Sonfada ◽  
M. A. Umaru ◽  
F. O. Oyelowo
Keyword(s):  
Reproductive System ◽  
Vas Deferens ◽  
Prostate Gland ◽  
Male Reproductive System ◽  
Seminiferous Tubules ◽  
Luminal Diameter ◽  
Fruit Bat ◽  
Mucosal Lining ◽  
Eidolon Helvum ◽  
Insight Into

The male reproductive system of fruit bat (Eidolon helvum) was studied histologically using light microscope. Thirty males (17 adults and 13 juveniles) were captured using net, weighed, aged using relative ossification of the wing bone, and dissected and reproductive tissue was processed for histomorphometry. On the basis of histological sections, the structures of a pair of testis containing the seminiferous tubules of adults were compacted in organization with spermatogenic cells. The epididymis has a thinner muscular region than the vas deferens with longitudinal folds on the mucosal lining. Two portions were observed in the prostate gland, while seminal vesicle has numerous trabeculae and bulbourethral gland was observed to have multiacini. There was increase in thickness of muscular region, epithelial height, and luminal diameter of epididymis and vas deferens between adults and juveniles. This work has documented the histology of the male reproductive system in bats, and ultrastructure and histochemistry are recommended for further insight into the reproductive biology.

Insight into the mechanism of aspartame‐induced toxicity in male reproductive system following long‐term consumption in mice model

2020 ◽  
Vol 36 (2) ◽  
pp. 223-237
Author(s):  
Hojat Anbara ◽  
Mohammad Taghi Sheibani ◽  
Mazdak Razi ◽  
Mehdi Kian
Keyword(s):  
Reproductive System ◽  
Male Reproductive System ◽  
Mice Model ◽  
Insight Into

scholarly journals The Concept of Male Reproductive Anatomy

2021 ◽  
Author(s):  
Oyovwi Mega Obukohwo ◽  
Nwangwa Eze Kingsley ◽  
Rotu Arientare Rume ◽  
Emojevwe Victor
Keyword(s):  
Reproductive System ◽  
Reproductive Tract ◽  
Prostate Gland ◽  
Ejaculatory Duct ◽  
Seminal Vesicles ◽  
Female Reproductive Tract ◽  
Male Reproductive System ◽  
Male Gametes ◽  
Human Reproductive ◽  
Reproductive Anatomy

The human reproductive system is made up of the primary and secondary organs, which helps to enhances reproduction. The male reproductive system is designed to produce male gametes and convey them to the female reproductive tract through the use of supportive fluids and testosterone synthesis. The paired testis (site of testosterone and sperm generation), scrotum (compartment for testis localisation), epididymis, vas deferens, seminal vesicles, prostate gland, bulbourethral gland, ejaculatory duct, urethra, and penis are the parts of the male reproductive system. The auxiliary organs aid in the maturation and transportation of sperm. Semen is made up of sperm and the secretions of the seminal vesicles, prostate, and bulbourethral glands (the ejaculate). Ejaculate is delivered to the female reproduc¬tive tract by the penis and urethra. The anatomy, embryology and functions of the male reproductive system are discussed in this chapter.

scholarly journals Red-Fleshed Apple Anthocyanin Extracts Attenuate Male Reproductive System Dysfunction Caused by Busulfan in Mice

2021 ◽  
Vol 8 ◽  
Author(s):  
Jihua Xu ◽  
Xiang Zhang ◽  
Xiaohong Sun ◽  
Qiang Lv ◽  
Yugang Zhang
Keyword(s):  
Mass Spectrometry ◽  
Liquid Chromatography ◽  
Oral Administration ◽  
Reproductive System ◽  
Sperm Concentration ◽  
Male Reproductive System ◽  
Seminiferous Tubules ◽  
Tandem Mass ◽  
Treatment Groups ◽  
Positive Effects

In this research, we analyzed the effect of an intragastrical oral administration of red-fleshed apple anthocyanin extract (RAAE) on busulfan-treated mice. First, we showed that the most abundant component in RAAE was cyanidin 3-O-galactoside. To determine the effect of the RAAE, the mice were divided into control and four other different concentrations of RAAE feeding treatment groups (BA0, no RAAE; BA.1, 0.1 mg/kg; BA1, 1 mg/kg; and BA5, 5 mg/kg) following busulfan injection. We observed that RAAE treatments displayed ameliorative effects on male reproductive system dysfunction caused by busulfan, such as recovering the irregular arrangements of seminiferous tubules, increasing the number of spermatogonia and spermatocytes, improving sperm concentration by 3-fold in BA.1, and improving sperm motility by 2-fold in BA1. The liquid chromatography with tandem mass spectrometry (LC-MS/MS) analysis showed significant up- or downregulation of certain metabolites, such as lysophosphatidylcholine (LysoPC), L-arginine, glycine, anandamide, and L-carnitine, which could contribute to the positive effects of RAAE, especially in PBA1 (plasma of BA1) and PBA5 (plasma of BA5). Taken together, the results indicate that 1 mg/kg of RAAE is a suitable concentration for rescuing spermatogenesis in mice. The research suggests that RAAE could be a potential nutraceutical for protecting spermatogenesis after busulfan therapy in cancer.

scholarly journals METRONIDAZOLE INDUCES SIGNIFICANT PATHOLOGICAL ALTERATIONS IN THE MALE REPRODUCTIVE SYSTEM OF MICE

2021 ◽  
Vol 52 (6) ◽  
pp. 1375-1381
Author(s):  
Z. K. Al – Timimi
Keyword(s):  
Reproductive System ◽  
Sperm Morphology ◽  
Male Reproductive System ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Distilled Water ◽  
Histopathological Changes ◽  
Negative Effects ◽  
The Mean ◽  
Water Treated Control

The present study was aimed to investigate the possible effects caused by the antibiotic, metronidazole, on the histology of the testis and the morphology of the sperms of mice. To achieve this,  adult male albino Swiss Mice were orally administrated with 0.1 ml (100 mg\ kg ) of the commercially used metronidazole (Flagyl) for 60 consecutive days. The results showed significant decreases (p<0.05) in the mean weight of body and testis in the treated mice as compared to the distilled water-treated control group. The treatment also caused several histopathological changes in the testis which included necrosis, congestion, hemorrhage, edema, germ cell downfall  and rupture in the seminiferous tubules. The tests of the sperm morphology revealed a number of deformations as a result of the treatment, such as the appearance of headless,  bend, broken-tailed, hook-tailed, and two-headed sperms, as well as sperms with cytoplasmic droplets. We conclude that from these results that orally administered Metronidazole exerts negative effects on the male reproductive system of mice .

scholarly journals The male reproductive system and the effect of an extract of a medicinal plant (Hypericum perforatum) on the labeling process of blood constituents with technetium-99m

2007 ◽  
Vol 50 (spe) ◽  
pp. 97-104 ◽  
Author(s):  
Sebastião David Santos-Filho ◽  
Adenilson de Souza da Fonseca ◽  
Mario Bernardo-Filho
Keyword(s):  
Reproductive Performance ◽  
Reproductive System ◽  
Hypericum Perforatum ◽  
Vas Deferens ◽  
Stannous Chloride ◽  
Male Reproductive System ◽  
Human Consumption ◽  
Blood Constituents ◽  
Technetium 99M ◽  
Young Rats

Hypericum perforatum (hiperico) is a plant that has been used to treat diseases and also inhibits rat and human vas deferens contractility. In nuclear medicine, stannous chloride (SnCl2) is used as a reducing agent to obtain radiopharmaceuticals labeling with technetium-99m. As the SnCl2 seems to have adverse effects related with the reproductive performance of male rabbits as well as the human consumption of hiperico might affect sexual function. In the present work, consistent results show significant changes on the blood constituents labeled by technetium-99m obtained from young rats under the effect of an hiperico extract as opposed to blood samples equally treated taken from elderly rat.. Supposedly, this extract could protect the male reproductive system against action of SnCl2 at least in young rats. The findings described in this work allow introducing a simple assay to evaluate the action of products that could interfere with the male reproductive system.

Pristina trifida sp. nov., a new soil-dwelling microannelid (Oligochaeta: Naididae) from Amazonian forest soils, with comments on species recognition in the genus

Zootaxa ◽  
2002 ◽  
Vol 118 (1) ◽  
pp. 1 ◽  
Author(s):  
RUT COLLADO ◽  
RÜDIGER M. SCHMELZ
Keyword(s):  
New Species ◽  
Forest Soils ◽  
Reproductive System ◽  
Distal Part ◽  
Vas Deferens ◽  
Species Recognition ◽  
Prostate Gland ◽  
High Similarity ◽  
Large Prostate ◽  
A New Species

A new species of the oligochaete genus Pristina (Naididae) is described from Central Amazonian soil and litter samples. Investigations were carried out on living and preserved material, with emphasis on characters of the soft-bodied anatomy as seen in living specimens, including the sexual organs. Regarding the chaetal pattern, Pristina trifida is almost indistinguishable from the syntopic P. silvicola Collado & Schmelz, 2000. Conspicuous differences exist, however, in the presence of a stomach with intracellular canals, in the location of the first nephridium in segment IX, and in details of the male reproductive system such as a large prostate gland and a widening of the distal part of the vas deferens. The new species resembles also a group of taxonomically problematic species, P. sima, P. minuta, and P. osborni, whose synonymy has been assumed by several authors. Pristina trifida differs from this group mainly by smaller needle and ventral chaetae and by equally long teeth in the anterior ventral chaetae. The high similarity in the chaetal pattern between P. trifida and P. silvicola implies that there are more species in Pristina than the chaetae might suggest. It further questions the accuracy of chaetae-based species identifications and synonymizations in the group of P. osborni, P. minuta, and P. sima, and possibly the genus in general.

scholarly journals Effect of Diabetes on the Male Reproductive System—A Histomorphological Study

2019 ◽  
Vol 36 (01) ◽  
pp. 017-023 ◽  
Author(s):  
Sushma Kotian ◽  
Ashok Kumar ◽  
Sanchari Mallik ◽  
Nandini Bhat ◽  
Anne Souza ◽  
...  
Keyword(s):  
Reproductive System ◽  
Histological Study ◽  
Autoimmune Disorder ◽  
Diabetic Rats ◽  
The Body ◽  
Male Reproductive System ◽  
Diabetic Group ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Minimum Diameter

Introduction Type 1 diabetes is an autoimmune disorder characterized by lack of insulin production by the β cells of the pancreas. This lack of insulin causes a variety of systemic effects on the metabolism of the body, one of which is reproductive dysfunction. The present study investigates the effects of diabetes on the male reproductive system of streptozotocin (STZ)-induced diabetic rats. Material and Methods A total of 18 adult male Wistar rats weighing ∼ between 250 and 300 g were included in the present study. The animals were divided into normal and diabetic groups. The diabetic group was further subdivided into 2 subgroups with durations of 24 and 48 days. A single dose of STZ (40 mg/kg body weight) was administrated intraperitoneally to the animals of the diabetic group. After the planned duration, the testes and epididymides were dissected, and their gross weight was measured. The tissues were then processed for histological study. Results The gross weight of the testes and epididymides in diabetic rats at 24 and 48 days showed a decrease in comparison to the control. (p < 0.01 for testes and epididymides).Diabetic animals presented a significant decrease in the diameter of the seminiferous tubules compared with the control group (p < 0.01). The epididymides in the diabetic groups showed a considerable reduction in the tubular surface area compared with the control group (p < 0.01). There was also a reduction in the mean diameter, which was measured using the maximum and minimum diameter of the tubules (p < 0.01). Conclusion The present study is an insight into the adverse effects that diabetes can have on the tissue structure of the testes, of the epididymides, and ultimately on the process of spermatogenesis.

Ultrastructure of the male reproductive system of the free-living marine nematode Paracyatholaimus pugettensis Wieser & Hopper, 1967 (Chromadorida: Cyatholaimidae)

Nematology ◽  
2010 ◽  
Vol 12 (2) ◽  
pp. 255-268 ◽  
Author(s):  
Julia K. Zograf
Keyword(s):  
Epithelial Cells ◽  
Seminal Vesicle ◽  
Reproductive System ◽  
Vas Deferens ◽  
Proximal Part ◽  
Male Reproductive System ◽  
Synthetic Activity ◽  
The Sea Of Japan ◽  
Marine Nematode ◽  
Free Living

AbstractAlthough nematodes are a well studied group of multicellular organisms, until now the only information on the cellular structure of the male reproductive system of marine nematodes is that on the histology of free-living marine nematode from the order Enoplida. The fine structure of the male reproductive system of the free-living marine nematode Paracyatholaimus pugettensis (Chromadorida: Cyatholaimidae) from the Sea of Japan has been studied using TEM. The testis epithelium has a large distal tip cell similar to that described for representatives of the subclass Rhabditia. The epithelial wall of the testis is differentiated along its length. The proximal part of the epithelial tube consists of relatively large cells bearing numerous surface outgrowths that permeate between the developing spermatocytes. The epithelium in the middle region of the testis is formed from extremely flattened cells. The distal part of the testis – the seminal vesicle – is filled with immature spermatozoa and consists of absorptive cells. The seminal vesicle is followed by the vas deferens. The gonoduct is also differentiated along its length, the first third being formed from synthetically active epithelial cells, the two layers of which form a tiled structure. There is no lumen in the gonoduct and it is probable that, due to the tiled structure, the epithelial cells move apart to create space for the spermatozoa during ejaculation. The posterior two-thirds of the duct is surrounded by muscle cells that create the necessary pressure during ejaculation. The enlarged epithelial cells of the vas deferens show vigorous synthetic activity, which is probably involved in the transformation of immature spermatozoa into mature gametes.

scholarly journals Effects of Diabetes Mellitus on the Reproductive System of Adult Male Mice After One Cycle of Spermatogenesis

2021 ◽  
Vol 17 (34) ◽  
pp. 149
Author(s):  
Kouassi Emile Bégbin ◽  
N’Guessan Ernest Zougrou ◽  
Georges Abizi ◽  
Koffi Kouakou ◽  
N’Takpé Emmanuel Jaurès Mangué
Keyword(s):  
Diabetes Mellitus ◽  
Adult Male ◽  
Reproductive System ◽  
Male Reproductive System ◽  
Diabetic Group ◽  
Seminiferous Tubules ◽  
Control Group ◽  
Male Mice ◽  
Chronic Hyperglycemia ◽  
Study Results

Background: Diabetes mellitus is a disease characterized by chronic hyperglycemia. Poor management of hyperglycemia leads to complications that can reduce quality of life. Diabetes mellitus has been associated with damage to the reproductive system. The present study examines effects of diabetes mellitus on the reproductive system in alloxan-induced diabetic mice after one cycle of spermatogenesis. Materials and Methods: Twelve (12) mice divided into "control" and "diabetic" groups of six (6) animals each were used. Diabetes was induced in adult male mice by intraperitoneal injection with a single dose of 220 mg/kg body weight of alloxan. After 40 days, sperm density, morphology, and motility were assessed by standard methods. Serum levels of testosterone, FSH, and LH were measured. In addition, testes and epididymis were removed for histological study. Results: Highly significant (P < 0.001) reductions in serum testosterone, FSH, and LH levels, as well as normal and motile sperm counts of 21% and 34% respectively were observed in the diabetic group. The control group had three times more sperm than the diabetic group. The histological increased inter-tubular spaces, loss of interstitial tissue, degeneration of seminiferous tubules, and almost complete reduction of sperm count in the epididymal duct. Conclusion: Chronic hyperglycemia is therefore deleterious to the male reproductive system of mice. It leads to hypogonadism, which causes dysfunction of the male reproductive system, and can lead to infertility in men with diabetes mellitus.

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