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PubMed1996

Anemia, genetic diseases, and malaria in prehistoric mainland Southeast Asia.

The analysis of a sample of skeletons from the 4,000-year-old site of Khok Phanom Di on the coast of central Thailand has identified a number of individuals with skeletal evidence suggestive of severe anemia. The differential diagnosis of the lesions is discussed and the presence of one of the thalassemia syndromes is proposed. The implications of this for southeast Asian prehistory are discussed. The presence of these conditions has been suggested in previous analyses of prehistoric southeast Asian populations, but this is the first population in which the evidence, including postcranial responses, is presented in detail.

Adult↗
PubMed1996

Psoriatic arthritis in a fifth-century Judean Desert monastery.

Psoriatic arthritis is a greatly underreported seronegative erosive arthropathy, due to the ambiguous lesions it leaves on bone in all but the most severe cases. For a confident diagnosis of psoriatic arthritis to be made, sacroiliac and intervertebral joint fusion must be present together with erosive lesions of the peripheral skeleton including most especially the terminal interphalangeal joints. In modern times it is only a small percentage of cases who experience such debilitating disease, which may explain who so few cases of psoriatic arthritis can confidently be identified from past populations. This report describes this pathological condition as observed in the comingled skeletal remains of nine males and one female from the tomb of Paulus in the Byzantine Monastery of Martyrius, in the Judean Desert. Visual study was complemented using radiographic techniques along with scanning electron microscopy. Two adult males show characteristic lesions of psoriatic arthritis, demonstrating the form known as arthritis mutilans. A third individual shows less widespread erosive lesions which may signify a pauciarticular example of psoriatic arthritis, as is true of most cases in modern times, or the remains may represent Reiter's disease. During the Byzantine period the earlier practise of expelling those with disfiguring diseases (biblical leprosy) evolved into a philanthropic, caring philosophy where the sick were housed and fed out of charity, often within monasteries. The presence of these cases of psoriatic arthritis within such a Judean Desert monastery confirms earlier suggestions that psoriasis was one of the diseases included by those in the ancient eastern Mediterranean under the umbrella term of biblical leprosy.

Arthritis, Psoriatic↗
PubMed1997

Endocranial hyperostosis in Sangiran 2, Gibraltar 1, and Shanidar 5.

Sangiran hominid 2 (S-2), Gibraltar hominid 1 (G-1), and Shanidar hominid 5 (SH-5) exhibit previously undescribed bilateral, paramedian hyperostosis of the endocranial frontal squama that spares the frontal crest, sagittal sinus, and ectocranial surface. The hyperostosis is localized to the frontal (usually the middle third) and parietal and is consistent with a diagnosis of hyperostosis calvaria interna (HCI), inclusive of hyperostosis frontalis interna. The hyperostosis in these specimens is compared to fossil hominids from Indonesia and Europe and to modern human cases of HCI. The three cases of HCI reported here documented the existence and frequency of HCI in fossil hominids and push the antiquity of the disease back to nearly 1.5 million years. The relatively great incidence of HCI in fossil hominids adds another confounding factor to the problematical issue of the taxonomic significance of cranial vault thickness.

Animals↗
PubMed1997

Identification of childhood arthritis in archaeological material: juvenile rheumatoid arthritis versus juvenile spondyloarthropathy.

The opportunity to examine the defleshed skeleton of an individual diagnosed in life (Hamann-Todd collection, individual 2036) afforded a unique opportunity to demonstrate the bone damage characteristic of at least one form of juvenile rheumatoid arthritis (JRA). Characteristics helpful for recognition of JRA in archaeological material include peripheral articular marginal and subchondral erosions, axial (e.g., zygapophyseal or sacroiliac) joint erosions, fusion of axial (cervical zygapophyseal) and/or peripheral joints, premature epiphyseal closure and/or ballooned epiphyses, growth retardation with underdeveloped (short and overtubulated) long bones, short mandibular rami with underdeveloped condyles and concomitant micrognathia, and demineralization (osteopenia). Distinguishing between JRA and juvenile spondyloarthropathy, however, is not always possible, as illustrated by this case.

Anthropology, Physical↗
PubMed1997

External auditory exostosis in prehistoric Chilean populations: a test of the cold water hypothesis.

Over one thousand prehistoric crania (n = 1,149) from northern Chile were analyzed to determine if the presence of external auditory exostosis (EAE) was a type of subsistence-induced pathology, a consequence of habitual fishing in the cold water of the Pacific Ocean, rather than genetically determined. To test this occupational hypothesis, the sample was divided according to chronology, type of economy, site elevation, and sex. The crania came from 43 sites, including the coast, lowland valleys (100-2,000 m), and highlands (2,000 to 4,000 m) with a time frame of 7,000 B.C. to the Inca era (1500 A.D.). There was a significant association between EAE, environment, and sex. The coastal inhabitants had the highest prevalence of EAE with 30.7% (103/336), followed by 2.3% (6/24) for the valley people and 0% (0/549) for highlanders. Coastal and valley men were significantly more affected than their female counterparts. Contrary to expectations, there was no significant association between EAE and economy and/or chronology. In the Arica area, the early Chinchorro fishers, without agriculture, had 27.7% (26/94) EAE, the subsequent agro-pastoralists, 42.7% (32/75), and the late Arican agro-pastoral fishers had 35.6% (36/101) EAE. Apparently, with the advent of agriculture, the coastal Arican populations increased their ocean harvests, rather than decreased them, to gain a surplus in order to trade with nonmaritime groups.

Chile↗
PubMed1997

Changes in mandibular morphology from the Jomon to modern periods in eastern Japan.

Metric characteristics of the mandibles of modern and various historical populations from the Kanto region (east-central Japan) were compared with those of their possible ancestral populations, i.e., the Jomon population from Kanto and the Yayoi population from northern Kyushu and Yamaguchi (western Japan). The Jomon people were aboriginal Holocene inhabitants of Japan, while the Yoyoi skeletal series are considered to largely represent immigrants from the Asian continent. Compared to the presumed ancestral morphology, the mandibles of the modern and pre-modern peoples of Kanto showed a marked narrowing, as well as reduction in the regions of major masticatory muscle attachments. The main cause of this underdevelopment is likely to be a diminished chewing stress, resulting in insufficient stimulation for proper growth of the jaw bone. In contrast, symphyseal height increased compared to the earlier Kanto populations. This may be a reflection of the existence of significant Yayoi genetic contribution in the formation of the modern and pre-modern Kanto populations. On the other hand, the mandibles of the protohistoric to medieval populations of the Kanto region are morphologically closer to Jomon. Therefore, they seem to have been genealogically continuous from the native Jomon people with some degree of gene flow stemming from the immigrants.

Adult↗
PubMed1997

Postcranial evidence of cold adaptation in European Neandertals.

The low brachial and crural indices of the European Neandertals have long been considered indicative of cold adaptation. Recent work has documented lower limb/trunk ratios and deeper chests (anterior-posterior diameter) in European Neandertals than among their successors. The present study uses variables reflective of limb length, body mass and trunk height, and compares European Neandertals to 15 globally diverse recent human samples (1 "Eskimo," 3 North African, 4 sub-Saharan African and 7 European). Bivariate plots, as well as principal components analysis plots of log shape-transformed data, indicate that European Neandertals had an overall body shape that falls at the extreme end of modern higher latitude groups' range of variation. Cluster analysis (minimum spanning tree on a principal coordinates plot) indicates that the Neandertals are closest in body shape to modern "Eskimos," but even in this dendrogram, they are joined to the "Eskimo" via a long branch. In fact, it appears that European Neandertals were "hyperpolar" in body shape, likely due to two factors: 1) the extremely cold temperatures of glacial Europe and 2) less effective cultural buffering against cold stress.

Adaptation, Biological↗
PubMed1997

Technical note: regression analysis in adult age estimation.

Accurate estimation of human adult age has always been a problem for anthropologists, archaeologists and forensic scientists. The main factor contributing to the difficulties is the high variability of physiological age indicators. However, confounding this variability in many age estimation applications is a systematic tendency for age estimates, regardless of physiological indicator employed, to assign ages which are too high for young individuals, and too low for older individuals. This paper shows that at least part of this error is the inevitable consequence of the statistical procedures used to extract an estimate of age from age indicators, and that the magnitude of the error is inversely related to how well an age indicator is correlated with age. The use of classical calibration over inverse calibration is recommended for age estimation.

Adolescent↗
PubMed1997

Stable isotopic analysis of human diet in the Marianas Archipelago, western Pacific.

Proportions of marine vs. terrestrial resources in prehistoric human diets in the southern Mariana Islands (Guam, Rota, Saipan), Micronesia, have been estimated by analysis of stable isotope ratios of carbon and nitrogen in bone collagen and of carbon in apatite. The isotopic composition of marine and terrestrial food resources from the Marianas have also been determined. Experimental evidence shows that collagen carbon isotopes mainly reflect those of dietary protein sources and thus overestimate the contribution of marine animal foods. Marine protein consumption apparently ranges from approximately 20% to approximately 50% on these islands. Experiments also demonstrate the carbon isotope ratio of bone apatite carbonate accurately reflects that of the whole diet. Carbonate carbon isotope data suggest some individuals consumed significant amounts of 13C-enriched (C4) plants or seaweeds. Sugar cane is an indigenous C4 crop and seaweeds are eaten throughout the Pacific, but they have not been considered by archaeologists to have been prehistoric dietary staples. Apatite carbon isotope analysis has apparently identified previously unrecognized prehistoric dietary adaptations in the Mariana Islands, but this must be confirmed by archaeobotanical evidence.

Bone and Bones↗
PubMed1997

Spondylolysis in prehistoric human remains from Guam and its possible etiology.

This study reports the findings of complete bilateral separation of the neural arch (spondylolysis) in 176 inhumations from the Hyatt Site, Tumon Bay, which is located on the west side of the island of Guam. Skeletons were excavated and analyzed by the Paul H. Rosendahl Inc. (PHRI) team in 1989-1990. The inhumations were associated with the pre-European Latte Period (circa 1,200-1,521 A.D.). This period was characterized by the use of large stone pillars, called latte sets, for the construction of houses. Of the 176 individuals, only 38 adult skeletons had complete spines, and 21% (8/38) of these had evidence of spondylolysis in their lumbar vertebrae, particularly in L-5. The age of the eight individuals range from 30 to 50 years. No children were found with spondylolysis. Of the males 29.4% (5/17) had spondylolysis, as did 14.3% (3/21) of the females. However, the difference between the sexes was not statistically significant. Though the sample is small, it is suggested that the high incidence of lumbar spondylolysis found in these ancient Chamorros was related to lower back traumatic events. The transport of latte stones, involving hyperextension and torque of the lower back, while dragging the stones, probably contributed to the development of microfractures in the spine and subsequent spondylolysis. If this hypothesis is correct, then both males and females appear to have been participants in an organized community labor force. It is predicted that similar frequencies of spondylolysis will be found at other Latte sites.

Bone and Bones↗
PubMed1998

Clues potentially distinguishing lytic lesions of multiple myeloma from those of metastatic carcinoma.

This study was conducted to determine whether individual bony lesions are specific for recognizing multiple myeloma and thereby distinguish it from metastatic cancer and leukemia. The lytic skeletal lesions of multiple myeloma are characterized by sharply defined, spheroid lesions. They have smooth borders and effaced/erased trabeculae. Unique spheroid myeloma lesions appear to be responsible for the "punched out" appearance of affected bone. The total absence of remodeling in myeloma forms a contrast to irregular preservation of trabeculae and buttressing, isolated "fronts of" cortical bone "resorption" coalescing to confluence, and the "golf-ball surface" phenomenon observed in metastatic cancer. The uniform effacement of both cortical and trabecular bone in multiple myeloma also contrasts with some cortical preservation in metastatic cancer. Leukemic lesions are more numerous than those of myeloma, but they lack the latter's "space-occupied" appearance. The relatively small holes and "fronts of resorption" of leukemia are quite different from the "space-occupied" lesions of multiple myeloma. Uniform size is a characteristic traditionally attributed to the bone lesions of multiple myeloma. The occurrence of isolated examples of uniform size lesions in metastatic cancer and of variable size lesions in some individuals with multiple myeloma precludes unequivocal use of size in differential diagnosis. Fortunately, the newly recognized macroscopic characteristics appear to separate multiple myeloma from metastatic cancer, and also distinguish myeloma from leukemia.

Diagnosis, Differential↗
PubMed1998

Prehistoric juvenile rheumatoid arthritis in a precontact Louisiana native population reconsidered.

Descriptions of skeletal pathological conditions evident in the prehistoric Tchefuncte adolescent 16ST1-14883b are clarified. The basis is reaffirmed for assigning to the described pathological conditions a diagnostic perspective of juvenile rheumatoid arthritis or juvenile Lyme disease--a disease that mimics juvenile rheumatoid arthritis in its arthritic presentation--rather than of assigning them as representative of juvenile onset ankylosing spondylitis or other juvenile spondyloarthropathies. A hypothesis (Lewis [1994] Am. J. Phys. Anthropol. 93:455-475) is restated that 1) the spirochete Borrelia burgdorferi was the infectious agent responsible for prevalence of adult rheumatoid arthritis in prehistoric southeastern Native American populations, 2) that B. burgdorferi is a possible cause of the arthritis evident in individual 16ST1-14883b, and 3) that antibodies to B. burgdorferi provided partial immunity to the related spirochete Treponema pallidum for the 16ST1 precontact Tchefuncte population from Louisiana, protecting them from severe treponemal response. Given the probable widespread existence of Ixodid tick vectors for B. burgdorferi in prehistoric North America, coupled with the existence of treponematosis, it follows that the transition of Native American hunting-gathering economies to more sedentary economies would predictably be linked to an increased incidence of treponematosis due to the loss of benefits of the above-stated partial immunity. In other words, as prehistoric Native American exposure to tick vectors for B. burgdorferi decreased, susceptibility to treponematosis increased. Inferences regarding biological controls interacting with and influencing prehistoric Native American migration patterns are suggested from the link of B. burgdorferi to an Ixodid tick common to northeast Asia.

Adolescent↗
PubMed1998

Rare temporal bone pathology of the Singa calvaria from Sudan.

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 exact etiology has not been established. Now computed tomography (CT) has revealed that the right temporal bone lacks the structures of the bony labyrinth. The most likely cause of this rare pathological condition appears to be labyrinthine ossification, in which newly deposited bone obliterates the inner ear spaces following an infectious disease or occlusion of the labyrinthine blood supply. A possible cause of vascular compromise could have been the presence of an expanding acoustic neuroma in the internal acoustic meatus, which is suggested by a significantly wider right meatus compared with the left side. Interestingly, labyrinthine ossification is also consistent with the controversial diagnosis that an anemia caused the characteristic diploic widening at the parietal bosses, because prime etiological factors of ossification are among the common complications of some of these blood diseases. CT examination of the vault and a review of the literature suggest that a blood disorder may well have caused the unusual parietal morphology. Given the nature of these pathological conditions, the Singa individual must have experienced a period of considerable disability. The morphological evidence from the normal bony labyrinth on the left side and from the CT evaluation of the vault is consistent with the interpretation of Singa as a late archaic hominid or an early representative of Homo sapiens drawn from a population which might be directly ancestral to modern humans.

Animals↗
PubMed1999

Spondyloarthropathy identified as the etiology of Nubian erosive arthritis.

Slight variation in manifestation of different diseases may allow a single individual with one disease to mimic the "classic" appearance of another, as evidenced by the frequent confusion of spondyloarthropathy with rheumatoid arthritis. Analysis of population occurrence of arthritis (rather than isolated skeletons) facilitates more precise diagnosis. Northeast Africans living around 2,000 years before present were clearly afflicted with a form of spondyloarthropathy. Lack of inclusion of spondyloarthropathy in the differential diagnosis of erosive arthritis led to past misclassification of Nubians as having rheumatoid arthritis. While evidence of spondyloarthropathy abounds in the literature of human skeletal disease, pre-Columbian Old World rheumatoid arthritis is still elusive. The current study further documents the absence of rheumatoid arthritis in Nubians, supporting the hypothesis that rheumatoid arthritis began in the New World.

Africa, Northern↗
PubMed1999

Hyperostosis frontalis interna: an anthropological perspective.

Hyperostosis frontalis interna (HFI) is manifested by the accretion of bone on the inner table of the frontal bone. Despite the vast literature on HFI, ambiguity exists as to its etiology, osteogenesis, demography, and history. This stimulated the present broad-scale study of HFI which included the evaluation of 1,706 early 20th century skulls (1,007 males and 699 females) from the Hamann-Todd and Terry human osteological collections, as well as 2,019 pre-19th century East-Mediterranean, Amerindian, and Central European skulls. In addition, 72 cadavers were dissected for gross inspection and histology. Special attention was paid to the relationship of the brain and meninges to endocranial lesions. HFI is an independent condition, not a symptom of a more generalized syndrome as suggested in the past. It can appear in a variety of forms but each is the result of the same process and probably of the same etiology. Investigators' previous failure to recognize the mild stages of HFI (types A and B) as an early form of the general HFI process led to erroneous statistics and interpretations of observations. HFI should also be considered a phenomenon separate from HCI, hyperostosis cranialis diffusa (HCD), and other endostoses, even when it appears in association with them. To avoid ambiguity and facilitate the description of cranial hyperostoses, uniform nomenclature (HFI, HCD) has been recommended. HFI is rarely seen in historic populations, regardless of geographical origin. It is most commonly found among females and is believed to be associated with prolonged estrogen stimulation. While its magnitude of manifestation and frequency are much higher in females, HFI is not a purely female phenomenon. Males with hormonal disturbances such as atrophic testis were found to manifest HFI type D. HFI is associated with age insofar as it is much less frequent in females under 40 years of age. Although advanced cases of HFI (types C and D) have been observed in individuals as young as 40 years of age, it is more frequently found after age 60. The frequency of HFI type D will not increase from age 60. Type-predicted analysis by cohort reveals significant ethnic differences. Changes in African American (AA) females appear earlier in life and progress more rapidly than in European American (EA) females. Analysis of radiographs shows a discrepancy between the anatomic prevalence of HFI and its radiological recognition, which is very poor for mild cases. This apparently resulted in the misconceptions that HFI is entirely an old-age phenomenon, and that it is exclusively female. Histological analysis shows that the inner table along with the closely attached dural layer play a major role in the osteogenesis of HFI. Contrary to previous models, no evidence for diploe or ectocranial plate involvement was found. Cadaver study suggests that the predilection for the frontal area may be related to an altered blood supply and/or vascular stretching.

Adult↗
PubMed1999

Fijian cannibalism: osteological evidence from Navatu.

The hypothesis that the human remains from the Navatu midden (50 BC to AD 1900) in Fiji represent cannibalized individuals was tested by an analysis of the skeletal remains. The site includes formal human burials and a separate, contemporaneous midden containing commingled fragmentary human and nonhuman bones. All remains were examined for a variety of modifications. The medium mammal and human remains in the midden have similar modifications: ancient breaks (92% of midden human specimens and 88% of medium mammal specimens), burning (29% and 11%), crushing (1% and 1%), cutmarks (9% and 8%), peeling (4% and 1%), and percussion pits (1% and 1%). The human burials (for which cannibalism had not been hypothesized) are essentially unmodified except for some breakage. The pattern of element representation and low incidence of animal bitemarks rules out carnivores and rodents as major modifiers of the assemblage. The breakage patterns, element representation, light weathering, and rarity of random striae indicate that sediment pressure, wave action, weathering, and trampling did not significantly alter the remains. The modifications of the midden human and nonhuman remains generally correspond in type and frequency. The evaluation of the assemblage's taphonomic history suggests that most of the modifications were caused by humans. The Navatu midden human sample does not resemble assemblages interpreted as secondary burials with defleshing, nor does it resemble violence-derived assemblages. The burials at Navatu and other Fijian sites indicate that the various noncannibalistic Fijian mortuary rituals do not mimic butchery and consumption. Therefore, the hypothesis of cannibalism at Navatu is supported.

Bone and Bones↗
PubMed2000

Possible case of spondylo-epiphyseal dysplasia in a medieval skeleton.

Multiple anomalies of vertebral and long bone growth were observed in the incomplete skeleton of an adult male from a collection of 693 medieval skeletons excavated at Abingdon, Oxfordshire. The skeleton consists of a fragmented skull, right scapula and humerus, left humerus, radius, ulna and partial hand, vertebrae from C1 to T11, and fragments of the ribs and sternum. The bones were examined, measured, and radiographed. The humeri are abnormally short and thick, with exaggerated muscle attachments. Both shoulder joints show extensive osteoarthritic destruction. Some vertebrae show slight flattening of the bodies, and there is possible evidence of both kyphosis and scoliosis. Skull, forearm, and hand bones are of normal size and morphology. Lack of lower limb bones and abnormal proportions in the upper limbs prevent meaningful estimation of stature. However, the other features of the skeleton are consistent with a diagnosis of spondylo-epiphyseal dysplasia. No other skeletons displaying similar anomalies were observed.

Arm↗