Androgen concentration in the blood and spermatogenic function of tom cats during the breeding season
In order to better understand androgen secretion in the tom cat during the breeding season, observations of diurnal changes in peripheral blood testosterone (T) levels, were made and the relation between androgen levels (androstenedione (A), 5α-dihydrotestosterone (DHT), T) in testicular and periphe...
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| Veröffentlicht in: | Japanese journal of veterinary science 1990/08/15, Vol.52(4), pp.801-806 |
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| container_title | Japanese journal of veterinary science |
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| creator | TSUTSUI, Toshihiko MURAO, Ikuko KAWAKAMI, Eiichi OGASA, Akira STABENFELDT, George H. |
| description | In order to better understand androgen secretion in the tom cat during the breeding season, observations of diurnal changes in peripheral blood testosterone (T) levels, were made and the relation between androgen levels (androstenedione (A), 5α-dihydrotestosterone (DHT), T) in testicular and peripheral vein blood was borne. Histologic examinations of the testis were also performed to investigate spermatogenic function. The 9 tom cats used in these studies were 2-3 years old, weighed 3.5-4.0kg, and were raised in a room under natural lighting. As a result, diurnal peripheral blood T levels in the tom cat fluctuated greatly according to each individual, but since no definite trend could be identified, secretion was determined to be episodic. Although fairly large differences in the 3 types of androgen were observed in testicular vein blood depending on the individual animal, levels on the left and right were almost equal. Moreover, a correlation was found between the testicular and peripheral vein blood concentrations of the 3 androgens (A: p |
| doi_str_mv | 10.1292/jvms1939.52.801 |
| format | Article |
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Histologic examinations of the testis were also performed to investigate spermatogenic function. The 9 tom cats used in these studies were 2-3 years old, weighed 3.5-4.0kg, and were raised in a room under natural lighting. As a result, diurnal peripheral blood T levels in the tom cat fluctuated greatly according to each individual, but since no definite trend could be identified, secretion was determined to be episodic. Although fairly large differences in the 3 types of androgen were observed in testicular vein blood depending on the individual animal, levels on the left and right were almost equal. Moreover, a correlation was found between the testicular and peripheral vein blood concentrations of the 3 androgens (A: p<0.01; DHT: p<0.05; T: p<0.01). Therefore, secretion of testicular androgen can be inferred by measuring peripheral blood androgen levels. Testicular histological examination revealed active spermatogenesis in all of the cats, and no significant inter individual differences were detected in either seminiferous tubule diameters or any of the various germ cells.</description><identifier>ISSN: 0021-5295</identifier><identifier>EISSN: 1881-1442</identifier><identifier>DOI: 10.1292/jvms1939.52.801</identifier><identifier>PMID: 2391779</identifier><language>eng</language><publisher>Japan: JAPANESE SOCIETY OF VETERINARY SCIENCE</publisher><subject>androgen ; androgene ; androgenos ; androgens ; Androstenedione - blood ; Animals ; Breeding ; breeding season ; breeding seasons ; cats ; Cats - blood ; chat ; Circadian Rhythm ; Dihydrotestosterone - blood ; epoca de apareamiento ; espermatogenesis ; gato ; hormonas sexuales ; hormone sexuelle ; macho ; Male ; males ; saison d' accouplement ; sex hormones ; spermatogenese ; spermatogenesis ; Spermatogenesis - physiology ; Testis - blood supply ; Testosterone - blood ; Time Factors ; tom cat</subject><ispartof>The Japanese Journal of Veterinary Science, 1990/08/15, Vol.52(4), pp.801-806</ispartof><rights>The Japanese Society of Veterinary Science</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c417t-c8bce9cf2cba0c187c86ccfe04de3d99593418c8665011d650e39829ade0d81a3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,1877,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/2391779$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>TSUTSUI, Toshihiko</creatorcontrib><creatorcontrib>MURAO, Ikuko</creatorcontrib><creatorcontrib>KAWAKAMI, Eiichi</creatorcontrib><creatorcontrib>OGASA, Akira</creatorcontrib><creatorcontrib>STABENFELDT, George H.</creatorcontrib><creatorcontrib>Nippon Veterinary and Zootechnical Coll., Musashino, Tokyo (Japan)</creatorcontrib><title>Androgen concentration in the blood and spermatogenic function of tom cats during the breeding season</title><title>Japanese journal of veterinary science</title><addtitle>The Japanese Journal of Veterinary Science</addtitle><description>In order to better understand androgen secretion in the tom cat during the breeding season, observations of diurnal changes in peripheral blood testosterone (T) levels, were made and the relation between androgen levels (androstenedione (A), 5α-dihydrotestosterone (DHT), T) in testicular and peripheral vein blood was borne. Histologic examinations of the testis were also performed to investigate spermatogenic function. The 9 tom cats used in these studies were 2-3 years old, weighed 3.5-4.0kg, and were raised in a room under natural lighting. As a result, diurnal peripheral blood T levels in the tom cat fluctuated greatly according to each individual, but since no definite trend could be identified, secretion was determined to be episodic. Although fairly large differences in the 3 types of androgen were observed in testicular vein blood depending on the individual animal, levels on the left and right were almost equal. Moreover, a correlation was found between the testicular and peripheral vein blood concentrations of the 3 androgens (A: p<0.01; DHT: p<0.05; T: p<0.01). Therefore, secretion of testicular androgen can be inferred by measuring peripheral blood androgen levels. Testicular histological examination revealed active spermatogenesis in all of the cats, and no significant inter individual differences were detected in either seminiferous tubule diameters or any of the various germ cells.</description><subject>androgen</subject><subject>androgene</subject><subject>androgenos</subject><subject>androgens</subject><subject>Androstenedione - blood</subject><subject>Animals</subject><subject>Breeding</subject><subject>breeding season</subject><subject>breeding seasons</subject><subject>cats</subject><subject>Cats - blood</subject><subject>chat</subject><subject>Circadian Rhythm</subject><subject>Dihydrotestosterone - blood</subject><subject>epoca de apareamiento</subject><subject>espermatogenesis</subject><subject>gato</subject><subject>hormonas sexuales</subject><subject>hormone sexuelle</subject><subject>macho</subject><subject>Male</subject><subject>males</subject><subject>saison d' accouplement</subject><subject>sex hormones</subject><subject>spermatogenese</subject><subject>spermatogenesis</subject><subject>Spermatogenesis - physiology</subject><subject>Testis - blood supply</subject><subject>Testosterone - blood</subject><subject>Time Factors</subject><subject>tom cat</subject><issn>0021-5295</issn><issn>1881-1442</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1990</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpVkD1v2zAQhokiReqmnTu14JRNDklRFjkG-WhSBEiGdibo48mRIZEOSQXovw8duQa6HMF7n3uGl5BvnC250OJi-zomrmu9bMRSMf6BLLhSvOJSihOyYEzwqhG6-UQ-p7RlTGrF2lNyKmrN21YvCF56F8MGPYXgAX2ONvfB097T_Ix0PYTgqPWOph3G0eY92gPtJg_vXOhoDiMFmxN1U-z9Zr6LiG7_SWhT8F_Ix84OCb8e3jPy5_bm99Vd9fD48_7q8qECydtcgVoDaugErC0DrlpQK4AOmXRYO60bXUuuynLVMM5dmVhrJbR1yJzitj4j57N3F8PLhCmbsU-Aw2A9himZVutVUxwFvJhBiCGliJ3ZxX608a_hzOyLNf-KNY0wpdhy8f2gntYjuiN_aLLk13O-Tdlu8JjbmHsY8D-fnEfRHmN4ttGgL5ofs6azwdhN7JP59cS1lozVqpGqfgNKvZes</recordid><startdate>19900801</startdate><enddate>19900801</enddate><creator>TSUTSUI, Toshihiko</creator><creator>MURAO, Ikuko</creator><creator>KAWAKAMI, Eiichi</creator><creator>OGASA, Akira</creator><creator>STABENFELDT, George H.</creator><general>JAPANESE SOCIETY OF VETERINARY SCIENCE</general><scope>FBQ</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>19900801</creationdate><title>Androgen concentration in the blood and spermatogenic function of tom cats during the breeding season</title><author>TSUTSUI, Toshihiko ; MURAO, Ikuko ; KAWAKAMI, Eiichi ; OGASA, Akira ; STABENFELDT, George H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c417t-c8bce9cf2cba0c187c86ccfe04de3d99593418c8665011d650e39829ade0d81a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1990</creationdate><topic>androgen</topic><topic>androgene</topic><topic>androgenos</topic><topic>androgens</topic><topic>Androstenedione - blood</topic><topic>Animals</topic><topic>Breeding</topic><topic>breeding season</topic><topic>breeding seasons</topic><topic>cats</topic><topic>Cats - blood</topic><topic>chat</topic><topic>Circadian Rhythm</topic><topic>Dihydrotestosterone - blood</topic><topic>epoca de apareamiento</topic><topic>espermatogenesis</topic><topic>gato</topic><topic>hormonas sexuales</topic><topic>hormone sexuelle</topic><topic>macho</topic><topic>Male</topic><topic>males</topic><topic>saison d' accouplement</topic><topic>sex hormones</topic><topic>spermatogenese</topic><topic>spermatogenesis</topic><topic>Spermatogenesis - physiology</topic><topic>Testis - blood supply</topic><topic>Testosterone - blood</topic><topic>Time Factors</topic><topic>tom cat</topic><toplevel>online_resources</toplevel><creatorcontrib>TSUTSUI, Toshihiko</creatorcontrib><creatorcontrib>MURAO, Ikuko</creatorcontrib><creatorcontrib>KAWAKAMI, Eiichi</creatorcontrib><creatorcontrib>OGASA, Akira</creatorcontrib><creatorcontrib>STABENFELDT, George H.</creatorcontrib><creatorcontrib>Nippon Veterinary and Zootechnical Coll., Musashino, Tokyo (Japan)</creatorcontrib><collection>AGRIS</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Japanese journal of veterinary science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>TSUTSUI, Toshihiko</au><au>MURAO, Ikuko</au><au>KAWAKAMI, Eiichi</au><au>OGASA, Akira</au><au>STABENFELDT, George H.</au><aucorp>Nippon Veterinary and Zootechnical Coll., Musashino, Tokyo (Japan)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Androgen concentration in the blood and spermatogenic function of tom cats during the breeding season</atitle><jtitle>Japanese journal of veterinary science</jtitle><addtitle>The Japanese Journal of Veterinary Science</addtitle><date>1990-08-01</date><risdate>1990</risdate><volume>52</volume><issue>4</issue><spage>801</spage><epage>806</epage><pages>801-806</pages><issn>0021-5295</issn><eissn>1881-1442</eissn><abstract>In order to better understand androgen secretion in the tom cat during the breeding season, observations of diurnal changes in peripheral blood testosterone (T) levels, were made and the relation between androgen levels (androstenedione (A), 5α-dihydrotestosterone (DHT), T) in testicular and peripheral vein blood was borne. Histologic examinations of the testis were also performed to investigate spermatogenic function. The 9 tom cats used in these studies were 2-3 years old, weighed 3.5-4.0kg, and were raised in a room under natural lighting. As a result, diurnal peripheral blood T levels in the tom cat fluctuated greatly according to each individual, but since no definite trend could be identified, secretion was determined to be episodic. Although fairly large differences in the 3 types of androgen were observed in testicular vein blood depending on the individual animal, levels on the left and right were almost equal. Moreover, a correlation was found between the testicular and peripheral vein blood concentrations of the 3 androgens (A: p<0.01; DHT: p<0.05; T: p<0.01). Therefore, secretion of testicular androgen can be inferred by measuring peripheral blood androgen levels. Testicular histological examination revealed active spermatogenesis in all of the cats, and no significant inter individual differences were detected in either seminiferous tubule diameters or any of the various germ cells.</abstract><cop>Japan</cop><pub>JAPANESE SOCIETY OF VETERINARY SCIENCE</pub><pmid>2391779</pmid><doi>10.1292/jvms1939.52.801</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | androgen androgene androgenos androgens Androstenedione - blood Animals Breeding breeding season breeding seasons cats Cats - blood chat Circadian Rhythm Dihydrotestosterone - blood epoca de apareamiento espermatogenesis gato hormonas sexuales hormone sexuelle macho Male males saison d' accouplement sex hormones spermatogenese spermatogenesis Spermatogenesis - physiology Testis - blood supply Testosterone - blood Time Factors tom cat |
| title | Androgen concentration in the blood and spermatogenic function of tom cats during the breeding season |
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