Mayumi Nakano
Biographic Data
| ID | 4146300 |
|---|---|
| NAME | Mayumi Nakano |
| GIVEN NAMES | Mayumi |
| FAMILY NAME | Nakano |
| SIGNATURE | NAKANO M |
| AFFILIATIONS | Tokai University |
| VERIFIED | No |
| TOTAL WORKS | 6 |
| TOTAL CITATIONS | 1 |
| AUTHOR COUNT | 6 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1994 |
| LATEST PUBLICATION YEAR | 2011 |
| H-INDEX | 1 |
A comparative study on testicular microstructure and relative sperm production in gorillas, chimpanzees, and orangutans
We performed histological analyses for comparing testicular microstructure between the gorilla, chimpanzee, and orangutan. Testicular samples were obtained by autopsy or biopsy from 10 gorillas, 11 chimpanzees, and 7 orangutans from several zoos and institutes. The seminiferous epithelia were thick in the chimpanzee and orangutan but thin in the gorilla. Leydig cells in the interstitial tissue were abundant in the gorilla. The acrosomic system wa…
Testicular histological examination of spermatogenetic activity in captive gorillas ( Gorilla gorilla )
To clarify the reproductive state of male gorillas, we performed histological examinations on the testicles of 10 male gorillas ( Gorilla gorilla ). The testicular samples were obtained by autopsy, and ordinal histological preparations were made for light microscopy. The poor spermatogenesis of this species was characterized by the following findings: First, spermatogenesis was evident in only four samples. Meiosis progressed in two samples, but …
A Comparative Study on Histology of Testes in Macaca nemestrina, M. fascicularis and M. fuscata
Seasonal changes in spermatogenic cell degeneration in the seminiferous epithelium of adult Japanese macaques (Macaca fuscata fuscata)
Seasonal changes in the spermatogenic epithelium of adult Japanese macaques (Macaca fuscata fuscata)
Preliminary Report on Histological Characteristics of Male Reproductive Organs in Senile Japanese Macaques
Histological characteristics of male reproductive organs were observed macrographically and microscopically in Japanese macaques aged 20 years old or more. As the senility proceeded, testicular weight and the diameter of the seminiferous tubules decreased. Likewise, the weights and epithelial heights of the seminal vesicle and prostate gland decreased in old males. Histologically, a proliferation of interstitial tissue was notable in every organ …
Preliminary Report on Histological Characteristics of Male Reproductive Organs in Senile Japanese Macaques
Histological characteristics of male reproductive organs were observed macrographically and microscopically in Japanese macaques aged 20 years old or more. As the senility proceeded, testicular weight and the diameter of the seminiferous tubules decreased. Likewise, the weights and epithelial heights of the seminal vesicle and prostate gland decreased in old males. Histologically, a proliferation of interstitial tissue was notable in every organ …
Seasonal changes in the spermatogenic epithelium of adult Japanese macaques (Macaca fuscata fuscata)
Preliminary Report on Histological Characteristics of Male Reproductive Organs in Senile Japanese Macaques
Histological characteristics of male reproductive organs were observed macrographically and microscopically in Japanese macaques aged 20 years old or more. As the senility proceeded, testicular weight and the diameter of the seminiferous tubules decreased. Likewise, the weights and epithelial heights of the seminal vesicle and prostate gland decreased in old males. Histologically, a proliferation of interstitial tissue was notable in every organ …
Seasonal changes in spermatogenic cell degeneration in the seminiferous epithelium of adult Japanese macaques (Macaca fuscata fuscata)
A Comparative Study on Histology of Testes in Macaca nemestrina, M. fascicularis and M. fuscata
Testicular histological examination of spermatogenetic activity in captive gorillas ( Gorilla gorilla )
To clarify the reproductive state of male gorillas, we performed histological examinations on the testicles of 10 male gorillas ( Gorilla gorilla ). The testicular samples were obtained by autopsy, and ordinal histological preparations were made for light microscopy. The poor spermatogenesis of this species was characterized by the following findings: First, spermatogenesis was evident in only four samples. Meiosis progressed in two samples, but …
A comparative study on testicular microstructure and relative sperm production in gorillas, chimpanzees, and orangutans
We performed histological analyses for comparing testicular microstructure between the gorilla, chimpanzee, and orangutan. Testicular samples were obtained by autopsy or biopsy from 10 gorillas, 11 chimpanzees, and 7 orangutans from several zoos and institutes. The seminiferous epithelia were thick in the chimpanzee and orangutan but thin in the gorilla. Leydig cells in the interstitial tissue were abundant in the gorilla. The acrosomic system wa…
Biology (6 works) · Primate Behavior and Ecology (6 works) · Sperm and Testicular Function (5 works) · Zoology (5 works) · Spermatogenesis (4 works) · Anatomy (3 works) · Andrology (3 works) · Animal Behavior and Reproduction (3 works) · Epithelium (3 works) · Animal ecology (2 works)