Publications by authors named "M J Hannula"

Vasculature of the small bowel mucosa, with a significant role in nutrient absorption and gut homeostasis, has been suggested to undergo remodeling in various gastrointestinal disorders, including celiac disease. However, due to its spatial organization within the mucosa, conventional 2D histological methods are of limited value in studying the intestinal vasculature reliably. X-ray microtomography (micro-CT) is a promising tool for soft tissue imaging, as it enables digital 3D reconstruction of various tissue samples, including endoscopically obtained small-bowel mucosal biopsies.

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Improving bone-graft substitutes and expanding their use in orthopedic and spinal surgery leads to shorter surgical times, fewer complications, and less pain among patients both in human and veterinary medicine. This study compared an elastic porous β-tricalcium phosphate/poly(L-lactide-co-ε-caprolactone) (β-TCP/PLCL) copolymer scaffold (composite scaffold) and a commercially available β-TCP/PLCL bone-graft substitute (chronOS Strip) in a rabbit calvarial defect. A bilateral, 12-mm circular defect was created in the parietal bones of 12 rabbits.

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Histopathological investigation of metastasis in core needle axillary lymph node (ALN) biopsies is crucial for the prognosis and treatment planning of breast cancer patients. Biopsies are typically sliced and evaluated as two-dimensional (2D) images. Biopsy sampling errors and the limited view provided by 2D histology are leading factors contributing to false-negative results in the preoperative detection of metastatic lymph nodes and underestimation of metastatic foci.

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Article Synopsis
  • Amorphous TiO can achieve better chemical stability through annealing, but the final crystalline structure is determined by defects in the initial amorphous phase.
  • Ion-beam sputter deposition creates oxide defects like oxygen vacancies without changing the overall composition of TiO, affecting crystallization properties.
  • Crystallization during vacuum annealing leads to different structures based on defect density: defect-free TiO forms microcrystalline anatase, moderate defects yield nanocrystalline rutile, and excessive defects create a mixed phase, all maintaining stability in harsh chemical environments.
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Pelvic organ prolapse (POP) afflicts millions of women globally. In POP, the weakened support of the pelvic floor results in the descent of pelvic organs into the vagina, causing a feeling of bulging, problems in urination, defaecation and/or sexual function. However, the existing surgical repair methods for relapsed POP remain insufficient, highlighting the urgent need for more effective alternatives.

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