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Intermittent parathyroid hormone treatment can promote linear growth in the ovariectomized growing rat

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dc.contributor.author육종인-
dc.contributor.author이현철-
dc.contributor.author임승길-
dc.date.accessioned2019-11-26T01:18:01Z-
dc.date.available2019-11-26T01:18:01Z-
dc.date.issued1999-
dc.identifier.issn0513-5796-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/172910-
dc.description.abstractTo compare the effect of intermittent parathyroid hormone (PTH) treatment with that of estrogen treatment on epiphyseal growth in ovariectomized rats, 46 Sprague-Dawley female rats aged 9-10 weeks (about 200-220 g) were either ovariectomized or sham operated. From 6 weeks after ovariectomy (ovx), rats were daily injected with subcutaneous human recombinant PTH (1-84)-dosed 30 micrograms/kg (the low dose PTH-treated group) or 300 micrograms/kg (the high dose PTH-treated group), 17 beta-estradiol (the 17 beta-estradiol-treated group, 30 micrograms/kg) or vehicle (the ovx-alone group), 5 times a week for 4 weeks. The decalcified sections of the distal femoral epiphyseal plate were analyzed on light microscopy after H&E stain, and the lengths of the zones of proliferation, maturing and hypertrophic chondrocytes were measured. The length of the growth plate, the zone of proliferation and the zone of hypertrophic chondrocyte in the ovx-alone group were significantly shorter than those of the sham-operated group. The treatment of 17 beta-estradiol speeded up the differentiation of cells from proliferating chondrocytes to maturing and hypertrophic chondrocytes even though the length of the growth plate was comparable to that of the sham-operated group. Both low and high dose PTH treatments increased the length of the growth plate, and those lengths were comparable to that of the sham-operated group. The fractions of proliferating, maturing and hypertrophic zone in the low dose PTH-treated group were also comparable to those of the sham-operated group. However, high dose PTH treatment slowed down the differentiation of cells from proliferating chondrocytes to maturing and hypertrophic chondrocytes to a greater extent, and therefore the fraction of proliferating chondrocytes of the high dose PTH-treated group was larger than that of the low dose PTH-treated group (73.8 +/- 1.8 Vs 63.3 +/- 1.3%, p < 0.005). From these results, we showed that intermittent PTH treatment could promote linear growth in the ovariectomized growing rat. We propose that PTH may be an alternative drug candidate for promoting linear growth of long bones without the risk for early closure of the growth plate.-
dc.description.statementOfResponsibilityopen-
dc.formatapplication/pdf-
dc.languageEnglish-
dc.publisherYonsei University-
dc.relation.isPartOfYONSEI MEDICAL JOURNAL-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.titleIntermittent parathyroid hormone treatment can promote linear growth in the ovariectomized growing rat-
dc.typeArticle-
dc.contributor.collegeCollege of Dentistry (치과대학)-
dc.contributor.departmentDept. of Oral Pathology (구강병리학교실)-
dc.contributor.googleauthorSung Kil Lim-
dc.contributor.googleauthorYoung Jun Won-
dc.contributor.googleauthorDu Hong Park-
dc.contributor.googleauthorDong Hwan Shin-
dc.contributor.googleauthorJong In Yook-
dc.contributor.googleauthorHyun Chul Lee-
dc.contributor.googleauthorKap Bum Huh-
dc.identifier.doi10.3349/ymj.1999.40.2.166-
dc.contributor.localIdA02536-
dc.contributor.localIdA03301-
dc.contributor.localIdA03301-
dc.relation.journalcodeJ02813-
dc.identifier.eissn1976-2437-
dc.identifier.pmid10333721-
dc.subject.keywordParathyroid hormone-
dc.subject.keyword17-estradiol-
dc.subject.keywordgrowth plate-
dc.subject.keywordlinear growth-
dc.contributor.alternativeNameYook, Jong In-
dc.contributor.affiliatedAuthor육종인-
dc.contributor.affiliatedAuthor이현철-
dc.contributor.affiliatedAuthor이현철-
dc.citation.volume40-
dc.citation.number2-
dc.citation.startPage166-
dc.citation.endPage172-
dc.identifier.bibliographicCitationYONSEI MEDICAL JOURNAL, Vol.40(2) : 166-172, 1999-
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Oral Pathology (구강병리학교실) > 1. Journal Papers

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