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F Valentin

Publications and source records attributed to F Valentin.

At least 19 recordsLinked to original sources
PubMed2005

Comparison of child morbidity in two contrasting medieval cemeteries from Denmark.

This study compares associations between demographic profiles, long bone lengths, bone mineral content, and frequencies of stress indicators in the preadult populations of two medieval skeletal assemblages from Denmark. One is from a leprosarium, and thus probably represents a disadvantaged group (Naestved). The other comes from a normal, and in comparison rather privileged, medieval community (AEbelholt). Previous studies of the adult population indicated differences between the two skeletal collections with regard to mortality, dental size, and metabolic and specific infectious disease. The two samples were analyzed against the view known as the "osteological paradox" (Wood et al. [1992] Curr. Anthropol. 33:343-370), according to which skeletons displaying pathological modification are likely to represent the healthier individuals of a population, whereas those without lesions would have died without acquiring modifications as a result of a depressed immune response. Results reveal that older age groups among the preadults from Naestved are shorter and have less bone mineral content than their peers from AEbelholt. On average, the Naestved children have a higher prevalence of stress indicators, and in some cases display skeletal signs of leprosy. This is likely a result of the combination of compromised health and social disadvantage, thus supporting a more traditional interpretation. The study provides insights into the health of children from two different biocultural settings of medieval Danish society and illustrates the importance of comparing samples of single age groups.

Adolescent↗
PubMed2005

[Psychological adjustment of stereotactic breast biopsy instrumentation procedures: about 73 cases].

OBJECTIVE: The aim of the study was to investigate patients' perceptions after stereotactic breast biopsy instrumentation, after both procedure and results. PATIENTS AND METHOD: From 1 March 2002 to 31 March 2003, a questionnaire (Likert response type) on stress was given to 73 patients who had breast biopsies procedures, the first time at the end of the procedure (T1) and then after the histological diagnosis (T2). RESULTS: The questionnaire was validated through analysis of principal component with Varimax rotation. Three factors were identified: procedure, quality of life, information and perception after biopsy. Responses were analysed with Chi-square. Two groups of women were identified, the first group (G1) corresponding to patients with a benign diagnosis (N=32) and the second group (G2) to patients with malignant diagnosis (N=32). Only the "procedure" factor was different at T1 and T2 (P=0.022). Compression was found to be painful: 11% at T1 versus 21% at T2. Women were disturbed by local anesthesia: 26% at T1 versus 21% at T2. Biopsy was painful: 6% at T1 versus 13% at T2. Examination was too long: 24% at T1 versus 35% at T2. The procedure was discomfortable: 52% at T1 versus 54% at T2. Information satisfied patients in 90% cases. There was no statistically significant difference according to procedures and histological disease (P=0.357). DISCUSSION AND CONCLUSION: Information and medical empathy conditioned patients' perceptions. Patients tolerated the procedures well.

Adult↗
PubMed2001

[Dietary behavior of the Middle Ages in Grenoble: application of isotopic biogeochemistry of the Saint-Laurent cemetery (XIIIth-XVth centuries, Isère, France)].

Isotopic analysis of 13C and 15N of 47 bones from Saint-Laurent de Grenoble cemetery (Grenoble, Isère), from the end of medieval period (XIIIth-XVth centuries AD) allowed to define the food status of animals with regard to the humans and to discuss the variability amongst adults. Adults who died young and those with small stature may have had diets poor in animal protein. The consumption of animal proteins was more important in the XVth than in the XIVth century and could illustrate a typical urban food economy providing its population with a more diversified diet than in rural areas.

Adult↗
PubMed2001

Rac-1-mediated O2- secretion requires Ca2+ influx in neutrophil-like HL-60 cells.

Neutrophil-like HL-60 cells reacted to N -formyl- l -Methionyl- l -Leucyl- l -P henylalanine (f MLP) with a rise in the intracellular calcium concentration ([Ca2]i), NADPH oxidase activation, and increased superoxide anion (O2-) production. [Ca2+]i mobilization and superoxide production were largely dependent on extracellular calcium (Ca2+]e) and a capacitative calcium entry. The monomeric G-protein, Rac-1, regulates NADPH oxidase activity. We tested the effect of removal of Ca2+]e on Rac-1 plasma membrane sequestration and activation of NADPH oxidase using immunodetection and a double labelling fluorescent method. Results showed that Rac-1 activation is mediated via a pertussis toxin (PTX)-sensitive heteromeric G-protein pathway, and that Rac-1 membrane sequestration was preceded by [Ca2+]i mobilization following entry of Ca2+ e. Therefore, we propose that O2- production is dependent on activation of PTX-sensitive G-proteins and sequestration of Rac-1 in the plasma membrane, following entry of Ca2+ e.

Calcium↗
PubMed1995

Brief communication: skeletal evidence of operations on cadavers from Sens (Yonne, France) at the end of the XVth century.

Human remains giving direct evidence concerning the history of dissection practices are rare. Thirteen cranial fragments which bear evidence of having been purposely cut and sawn were discovered in a crypt during excavations undertaken in Sens (Yonne, France). Ceramics date these remains to the period from the end of the XIVth to the end of the XVIth centuries. Nine individuals are represented: one adolescent and eight adults of both sexes. The position of the cutmarks, which were produced by a long, sharp cutting tool, show that the scalp was completely removed from the skull. The sawing, which was done with a large-toothed saw, was both clockwise and counterclockwise in direction. The sawn surfaces reveal a deliberate attempt not to damage the brain. This procedure is compared to that of modern autopsies. The remains from Sens are also compared with several other sawn cranial fragments recently discovered in France and England. Three hypotheses are discussed: embalmment, autopsy, and anatomical studies. Analysis of these remains and historical documentation suggest embalmment and/or autopsy as the probable purpose of the opening of the skull.

Adult↗
PubMed1975

[Critical analysis of angiography in renal traumatology (author's transl)].

From this analysis of a series of 39 cases of trauma submitted to angiography, it can once again be said that surgical indications and tactics are essentially determined by vascular involvment. Renal arteriography is therefore alone capable of answering two primordial questions: "Must surgery be undertaken and when operating, what surgical tactics to adopt". It must be preceded by full arteriography which enables one to evaluate associated lesions (spleen 15%), at the same time as it orientates selective arteriography. The I.V.P. is a correct means of approach but is only significant in 60% of cases. Abstention from radiological investigation as a primary requisite is unpardonable and can leave irreversible sequels. (10% of cases).

Abdominal Injuries↗
PubMedDate not supplied

[Risk of trauma].

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Accidental Falls↗