Abstract:
:This cross-sectional study investigates metabolic bone disease and the relationship between age and bone mineral density (BMD) in males and females of a large, well-documented skeletal population of free-ranging rhesus monkeys (Macaca mulatta), from the Caribbean Primate Research Center Museum collection from Cayo Santiago, Puerto Rico. The sample consists of 254 individuals aged 1.0-20+ years. The data consist of measurements of bone mineral content and bone mineral density, obtained from dual-energy X-ray absorptiometry (DEXA), of the last lumbar vertebra from each monkey. The pattern of BMD differs between male and female rhesus macaques. Females exhibit an initial increase in BMD with age, with peak bone density occurring around age 9.5 years, and remaining constant until 17.2 years, after which there is a steady decline in BMD. Males acquire bone mass at a faster rate, and attain a higher peak BMD at an earlier age than do females, at around 7 years of age, and BMD remains relatively constant between ages 7-18.5 years. After age 7 there is no apparent effect of age on BMD in the males of this sample; males older than 18.5 years were excluded due to the presence of vertebral osteophytosis, which interferes with DEXA. The combined frequency of osteopenia and osteoporosis in this population is 12.4%. BMD values of monkeys with vertebral wedge fractures are generally higher than those of virtually all of the nonfractured osteopenic/osteoporotic individuals, thus supporting the view that BMD as measured by DEXA is a useful but imperfect predictor of fracture risk, and that low BMD may not always precede fractures in vertebral bones. Other factors such as bone quality (i.e., trabecular connectivity) should also be considered. The skeletal integrity of a vertebra may be compromised by the loss of key trabeculae, resulting in structural failure, but the spine may still show a BMD value within normal limits, or within the range of osteopenia.
journal_name
Am J Phys Anthropoljournal_title
American journal of physical anthropologyauthors
Cerroni AM,Tomlinson GA,Turnquist JE,Grynpas MDdoi
10.1002/1096-8644(200011)113:3<389::AID-AJPA9>3.0.subject
Has Abstractpub_date
2000-11-01 00:00:00pages
389-410issue
3eissn
0002-9483issn
1096-8644pii
10.1002/1096-8644(200011)113:3<389::AID-AJPA9>3.0.journal_volume
113pub_type
杂志文章,评审abstract::In this study, dominance rank instability among male Lemur catta during mating was investigated. Also, data on agonism and sexual behavior across five consecutive mating seasons in a population of L. catta on St. Catherines Island, USA, were collected. Instances of male rank instability were categorized into three typ...
journal_title:American journal of physical anthropology
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doi:10.1002/ajpa.20927
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abstract:BACKGROUND:The differences in trace element concentrations among 19 different bone elements procured from 10 archaeologically derived human skeletons have been investigated. The 10 individuals are dated archaeologically and some by radiocarbon dating to the medieval and post-medieval period, an interval from ca. AD 115...
journal_title:American journal of physical anthropology
pub_type: 历史文章,杂志文章
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journal_title:American journal of physical anthropology
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abstract::Teilhardina belgica is one of the earliest fossil primates ever recovered and the oldest fossil primate from Europe. As such, this taxon has often been hypothesized as a basal tarsiiform on the basis of its primitive dental formula with four premolars and a simplified molar cusp pattern. Until recently [see Rose et al...
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journal_title:American journal of physical anthropology
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更新日期:2004-06-01 00:00:00
abstract:OBJECTIVES:Depicting past epidemics currently relies on DNA-based detection of pathogens, an approach limited to pathogens with well-preserved DNA sequences. We used paleoserology as a complementary approach detecting specific antibodies under a mini line-blot format including positive and negative control antigens. M...
journal_title:American journal of physical anthropology
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journal_title:American journal of physical anthropology
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journal_title:American journal of physical anthropology
pub_type: 历史文章,杂志文章
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更新日期:1996-04-01 00:00:00
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journal_title:American journal of physical anthropology
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更新日期:2001-03-01 00:00:00
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pub_type: 历史文章,杂志文章
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journal_title:American journal of physical anthropology
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更新日期:2014-01-01 00:00:00
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journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.1330530311
更新日期:1980-09-01 00:00:00
abstract::This article examines the influence of nutritional status on the emergence of deciduous dentition in a cross-sectional sample of 510 rural Rajput children from the Jubbal and Kotkhai Tehsils, Shimla District, Himachal Pradesh, India. The nutritional status of each child was evaluated using Z-scores of height/supine le...
journal_title:American journal of physical anthropology
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doi:10.1002/ajpa.22041
更新日期:2012-05-01 00:00:00
abstract::Evidence has recently accumulated that the Singa calvaria from Sudan probably dates from Oxygen Isotope Stage 6 (>130 ka). Morphological studies have indicated a mixture of archaic and more modern human traits, but such analyses are complicated by the possibility that the vault is pathologically deformed, although the...
journal_title:American journal of physical anthropology
pub_type: 历史文章,杂志文章
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更新日期:1998-09-01 00:00:00
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journal_title:American journal of physical anthropology
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abstract:OBJECTIVES:The purpose of this study is to demonstrate advantages of principal component analysis (PCA) as a standardized procedure in the evaluation of osteoarthritis (OA) in a skeletal series to: (1) compute aggregate scores for joint complexes that accurately capture pathological expression, (2) reveal which variabl...
journal_title:American journal of physical anthropology
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journal_title:American journal of physical anthropology
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abstract::Compared to most quadrupedal mammals, humans are energetically inefficient when running at high speeds. This fact can be taken to mean that human dipedalism evolved for reasons other than to reduce relative energy cost durding locomotion. Recalculation of the energy expending expended during human walking at normal sp...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.1330520113
更新日期:1980-01-01 00:00:00
abstract::The origins of the ancient Egyptian state and its formation have received much attention through analysis of mortuary contexts, skeletal material, and trade. Genetic diversity was analyzed by studying craniometric variation within a series of six time-successive Egyptian populations in order to investigate the evidenc...
journal_title:American journal of physical anthropology
pub_type: 历史文章,杂志文章
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更新日期:2007-04-01 00:00:00
abstract::Recently spatial autocorrelation has been employed to infer microevolutionary processes from patterns of genetic variation. In theory, different processes should show characteristic signature correlograms; e.g., clinal selection should produce correlograms decreasing from positive to negative autocorrelation, whereas ...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.1330950403
更新日期:1994-12-01 00:00:00
abstract::The existence of an apomorphic reciprocal chromosomal translocation in the gorilla lineage has been asserted or denied by various cytogeneticists. We employed a new molecular cytogenetic strategy (chromosomal in situ suppression hybridization) combined with high-resolution banding, replication sequence analysis, and f...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.1330880210
更新日期:1992-06-01 00:00:00
abstract::The Byzantine Empire managed a complex administrative network that controlled the mining and processing of natural resources from within its boundaries. Scholars relying upon archeological and textual evidence debate the level of imperial involvement in these ventures, particularly in the provinces. Ancient sources no...
journal_title:American journal of physical anthropology
pub_type: 历史文章,杂志文章
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更新日期:2009-11-01 00:00:00
abstract:OBJECTIVES:The present study aimed at investigating the timing of birth across the day in a rural population of indigenous and nonindigenous women in the province of Formosa, Argentina in order to explore the variation in patterns in a non-Western setting. MATERIALS AND METHODS:This study utilized birth record data tr...
journal_title:American journal of physical anthropology
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journal_title:American journal of physical anthropology
pub_type: 杂志文章
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abstract::The aims of the present study are to 1) determine and describe levels of dental fluctuating asymmetry (FA) in a highly endogamous human group; 2) evaluate the effects of various FA measures on perceived FA levels and their interrelationships; 3) study the connections between dental variables (tooth size, class, positi...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.1330910308
更新日期:1993-07-01 00:00:00
abstract::A model is developed that treats migration rates among populations as a function of the geographic distance between them and the size of both sources and recipient population. Specifically, mij/mjj = a(Ni/Nj)pe-bd, where mij/mjj is the relative migration rate into population j from population i, Ni is the size of the ...
journal_title:American journal of physical anthropology
pub_type: 杂志文章
doi:10.1002/ajpa.1330890407
更新日期:1992-12-01 00:00:00