[Bibliometric analysis of the thematic evolution in fibromyalgia and biomechanics (1985-2021)]. / Análisis bibliométrico de la evolución temática en fibromialgia y biomecánica (1985-2021).

The main objective of the study is to analyse the scientific evolution of the research field of fibromyalgia and biomechanics. A search was carried out in Web of Science, from 1985 to 2021. With those results, a bibliometric map of keywords was created with VOSviewer. On top of that, scientific mapping and performance analysis were also conducted using SciMAT. A total of 233 articles from around the world were analysed, highlighting the production of the USA and Spain. The results show great diversity in topics with 54 different topics and 33 keywords. Although most of the topics found are not widely developed except the topics of physical activity and symptomatology. In conclusion, the study of fibromyalgia and biomechanics has generally grown over time.

Origin and genetic differentiation of three Native Mexican groups (Purépechas, Triquis and Mayas): contribution of CODIS-STRs to the history of human populations of Mesoamerica.

BACKGROUND: CODIS-STRs in Native Mexican groups have rarely been analysed for human identification and anthropological purposes. AIM: To analyse the genetic relationships and population structure among three Native Mexican groups from Mesoamerica. SUBJECTS AND METHODS: 531 unrelated Native individuals from Mexico were PCR-typed for 15 and 9 autosomal STRs (Identifiler™ and Profiler™ kits, respectively), including five population samples: Purépechas (Mountain, Valley and Lake), Triquis and Yucatec Mayas. Previously published STR data were included in the analyses. RESULTS: Allele frequencies and statistical parameters of forensic importance were estimated by population. The majority of Native groups were not differentiated pairwise, excepting Triquis and Purépechas, which was attributable to their relative geographic and cultural isolation. Although Mayas, Triquis and Purépechas-Mountain presented the highest number of private alleles, suggesting recurrent gene flow, the elevated differentiation of Triquis indicates a different origin of this gene flow. Interestingly, Huastecos and Mayas were not differentiated, which is in agreement with the archaeological hypothesis that Huastecos represent an ancestral Maya group. Interpopulation variability was greater in Natives than in Mestizos, both significant. CONCLUSION: Although results suggest that European admixture has increased the similarity between Native Mexican groups, the differentiation and inconsistent clustering by language or geography stresses the importance of serial founder effect and/or genetic drift in showing their present genetic relationships.

Precision of estimating time of death by vitreous potassium--comparison of various equations.

This paper is a study of the precision of estimating the time since death comparing the equations developed by different authors. Our aim is to determine with the maximum degree of accuracy the exact time of death of the individual. We consider that the study has been fully justified by the observed differences in the results obtained from the different equations under study when the concentration of potassium in the vitreous humour was identical.

Polymorphisms of the enzyme systems galactose-1-phosphate uridyltransferase (GALT) and esterase D (EsD) in the province of Cádiz, southern Spain.

Galactose-phosphate uridyltransferase (GALT) and esterase D (EsD) phenotypes were determined by isoelectric focusing in ultrathin-layer polyacrylamide gel (PAGIF) for 406 healthy subjects randomly chosen and residing in the province of Cádiz, in Southern Spain. The following gene frequencies were observed: for GALT, GALT1 = 0.952 970 3 and GALT2 = 0.047 029 71; for EsD, EsD1 = 0.895 320 2, EsD2 = 0.094 827 59, and EsD5 = 0.009 852 21.

An unusual case of railway suicide.

A rare case of suicide in which the victim had been lying along the railway track in a supine position and with extended extremities is described. The wheels of a train caused longitudinal hemisection with complete evisceration. Epidemiological data on train suicides are given and the relationship between this method of suicide and mental illnesses and consumption of alcohol are discussed.

Genetic polymorphism of the inter-alpha-trypsin inhibitor (ITI) in Cádiz Province, Southern Spain.

The results of a study of Inter-Alpha-Trypsin Inhibitor (ITI) polymorphism in 281 blood samples are reported in this paper. These samples were taken from healthy individuals of both sexes, unrelated and resident in the Province of Cadiz. The frequency of ITI*1 was 0.617 and of ITI*2 was 0.383. The probability of exclusion in paternity testing was 0.18.