Quantitative anatomy of the liver visceral surface in the human fetus

Paruszewska-Achtel, Monika; Dombek, Małgorzata; Badura, Mateusz; Elminowska-Wenda, Gabriela; Wiśniewski, Marcin; Szpinda, Michał

doi:10.17219/acem/74375

Cited by 2 publications

(2 citation statements)

References 22 publications

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“…Furthermore, the total liver circumference computed the logarithmic function: y = 380.170+162.991×ln(age)±16.084. It should be noticed that our earlier study on the visceral surface of the fetal liver [35] showed the circumferences of right and left lobes to grow logarithmically as well, in accordance with the following regressions, as: y = −287.401+120.550×ln (Age)±10.00 and y = −295.715+122.097×ln (Age)±10.45, respectively. The total liver circumference modelled the natural logarithmic function: y = −517.502+210.340×ln (Age)±13.714.…”

Section: Discussionsupporting

confidence: 79%

Morphometric study of the diaphragmatic surface of the liver in the human fetus

et al. 2020

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This study aimed to examine age-specific reference intervals and growth dynamics of the best fit for liver dimensions on the diaphragmatic surface of the fetal liver. The research material consisted of 69 human fetuses of both sexes (32♂, 37♀) aged 18-30 weeks. Using methods of anatomical dissection, digital image analysis and statistics, a total of 10 measurements and 2 calculations were performed. No statistical significant differences between sexes were found (p>0.05). The parameters studied displayed growth models that followed natural logarithmic functions. The mean value of the transverse-to-vertical diameter ratio of the liver throughout the analyzed period was 0.71±0.11. The isthmic ratio decreased significantly from 0.81±0.12 in the 18-19th week to 0.62±0.06 in the 26-27th week, and then increased to 0.68±0.11 in the 28-30th week of fetal life (p<0.01). The morphometric parameters of the diaphragmatic surface of the liver present age-specific reference data. No sex differences are found. The transverse-to-vertical diameter ratio supports a proportionate growth of the fetal liver. Quantitative anatomy of the growing liver may be of relevance in both the ultrasound monitoring of the fetal development and the early detection of liver anomalies.

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Section: Discussionsupporting

confidence: 79%

Morphometric study of the diaphragmatic surface of the liver in the human fetus

et al. 2020

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“…Measurements of fixed and/or preserved tissues are commonly used in morphological sciences (Waltenberger et al, 2021). For developmental and foetal anatomy, formaldehyde‐preserved research material is the main source for morphological analysis (Beger et al, 2021; Grzonkowska et al, 2021; Paruszewska‐Achtel et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Preservation fluids of heritage anatomical specimens — a challenge for modern science. Studies of the origin, composition and microbiological contamination of old museum collections

et al. 2023

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Anatomical museums preserve specimens of great historical value and undiscovered scientific potential. However, frequently these collections lack documentation of the techniques of preparation and the composition of preservative substances (conservation principles). This poses a huge problem for the care and preservation of these materials, more so because understanding this issue requires knowledge of fundamentals from different scientific disciplines. The aim of the research was to obtain information about the composition of substances used to preserve historic specimens, as well as to conduct a microbiological assessment of the specimens to detect possible factors causing their deterioration. Furthermore, we wanted to fill an existing gap in the literature, as there is a lack of reports on analytical methods that could be successfully applied by anatomists involved in the daily care of museum collections in human anatomy departments. The starting point was the analysis of the sources and history of the collections, on which basis the choice of research methods was made. Methods based on simple chemical reactions and specialised methods (such as gas chromatography-tandem mass spectrometry, Fourier transform infrared spectroscopy, inductively coupled plasma optical emission spectroscopy) were used in the analyses of the composition of fluids. Microbiological analyses were based on culture and isolation methods, analysis of microscopy slides and matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry analysis. As a result of these analyses, some components of the preservative mixtures and their concentrations were determined. The presence of methanol, ethanol, formaldehyde and glycerol was detected, among other chemicals.The concentrations of these substances were different between the samples and their determination required the use of a variety of methods suitable for the individual components of the preservative mixture. In microbiological tests, both bacteria and fungi were isolated from swabs taken from anatomical specimens. The bacterial flora was less numerous than the fungal flora. Among the bacteria, environmental Gram-positive Bacillus cereus, Bacillus thuringiensis and a rare bacterium of the Cupriavidus genus were | 149 DOMAŃSKI et al.

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Quantitative anatomy of the liver visceral surface in the human fetus

Cited by 2 publications

References 22 publications

Morphometric study of the diaphragmatic surface of the liver in the human fetus

Morphometric study of the diaphragmatic surface of the liver in the human fetus

Preservation fluids of heritage anatomical specimens — a challenge for modern science. Studies of the origin, composition and microbiological contamination of old museum collections

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