Thorough study is required to decide the appropriate management of hepatic tumors in children. We present a case report of a hepatic embryonal undifferentiated sarcoma with unfavorable prognosis in a nine-year-old girl. After undergoing a detailed cancer characteristics and extension study, a two-stage surgery approach was decided. The hepatic tumor resection was the first procedure to be performed. One week later, under cardiopulmonary bypass, deep hypothermia, and circulatory arrest, thrombectomy of the inferior vena cava and right atrium was accomplished, plus thromboendarterectomy of the right pulmonary artery. During a four-year follow-up, the patient continues to be disease-free.
Purpose: Anatomical research on fetal liver venous systems is scarce. This study presents variations, morphometric, and histogenesis data through cadaveric study which can aid prenatal radiological analysis.
Materials And Methods: 10% formalin embalmed 16 fetuses (8-second trimester, 8-third trimester) were utilized.
Background: Hepatic organoids (HOs), validated through comparative sequencing with human liver tissues, are reliable models for liver research. Comprehensive transcriptomic and proteomic sequencing of HOs throughout their induction period will enhance the platform's utility, aiding in the elucidation of liver development's molecular mechanisms.
Methods: We developed hepatic organoids (HOs) from embryonic stem cells (ESCs) through a de novo induction protocol, mimicking the stages of fetal liver development: ESCs to definitive endoderm (DE), then to foregut (FG), hepatoblasts (HB), and finally to HOs stage 1 (HO1), culminating in self-organizing HOs stage 2 (HO2) via dissociation and re-inoculation.
Cell states are modulated by intrinsic driving forces such as gene expression noise and extrinsic signals from the tissue microenvironment. The distinction between intrinsic and extrinsic cell state determinants is essential for understanding the regulation of cell fate in tissues during development, homeostasis and disease. The rapidly growing availability of single-cell resolution spatial transcriptomics makes it possible to meet this challenge.
Δ-Tetrahydrocannabinol (THC) is the main psychoactive ingredient in cannabis, and its usage among pregnant individuals is rising, leading to concerns about fetal exposure.
Research indicates that fetal THC exposure is significantly lower than maternal levels due to a specific placental transporter that actively reduces THC transfer to the fetus, although the exact identity of this transporter remains unknown.
In lab studies, it was discovered that THC and its metabolite THC-COOH acted as substrates for certain liver transporters but were not inhibitors, highlighting the complexity of THC metabolism and transport in the body.
Tissue Engineering and Organ Manufacturing (TEOM) Lab, Department of Biomedical Engineering, TaiKang Medical School (School of Basic Medical Sciences), Wuhan University, Wuhan, Hubei 430071, People's Republic of China.
Acoustic bioassembly is recently regarded as a highly efficient biofabrication tool to generate functional tissue mimics. Despite their capacity of directly patterning live cells with close intercellular proximity, most acoustic bioassembly techniques are currently limited to generate some specific simple types of periodic and symmetric patterns, which represents an urgent challenge to emulate geometrically complex cytoarchitecture in human tissue. To address this challenge, we herein demonstrate a soft-lithographically defined acoustic bioassembly (SLAB) technique that enables to assemble live cells into geometrically defined arbitrary multicellular structures.
