Alveolar Bone Graft Supplemented With Stromal Vascular Fraction in Patients With Permanent Dentition: A Randomized Study.

Objective: To evaluate bone development in patients with alveolar clefts and permanent dentition treated with alveolar bone graft supplemented with stromal vascular fraction (SVF).

Design: Clinical, prospective, randomized.

Location: Single tertiary care institution.

Advanced Stage Breast Sarcoma Treatment in a Third World Country Public Hospital.

The case reports a 49-year-old patient, drug-addicted, undernourished, and homeless, who was referred to our service presenting a diagnostic of breast sarcoma and ulcerating tumor which extended from the right breast to the right flank. She underwent hygienic mastectomy and, as it developed, she presented a range of complications, culminating in the recurrence of the tumor and pulmonary metastasis few months after her initial treatment. There is relevance in our study not only because it reports the development of the breast sarcoma, rare neoplasm, and its aggressiveness with fast recurrence, but also because it exposes the impact of biopsychosocial behavior of this patient in her clinical outcome.

Hierarchical cooperative binary ionic porphyrin nanocomposites.

Cooperative binary ionic (CBI) solids comprise a versatile new class of opto-electronic and catalytic materials consisting of ionically self-assembled pairs of organic anions and cations. Herein, we report CBI nanocomposites formed by growing nanoparticles of one type of porphyrin CBI solid onto a second porphyrin CBI substructure with complementary functionality.

The influence of hydrogen bonds on the electronic structure of light-harvesting complexes from photosynthetic bacteria.

The influence of hydrogen bonds on the electronic structure of the light-harvesting I complex from Rhodobacter sphaeroides has been examined by site-directed mutagenesis, steady-state optical spectroscopy, and Fourier-transform resonance Raman spectroscopy. Shifts of 4-23 nm in the Q(y) absorption band were observed in seven mutants with single or double changes at Leu alpha44, Trp alpha43, and Trp beta48. Resonance Raman spectra were consistent with the loss of a hydrogen bond with the alteration of either Trp alpha43 or Trp beta48 to Phe.