The RND efflux system ParXY affects siderophore secretion in KT2440.

Gram-negative bacteria from the group are survivors in various environmental niches. For example, the bacteria secrete siderophores to capture ferric ions under deficiency conditions. Tripartite efflux systems are involved in the secretion of siderophores, which are also important for antibiotic resistance.

Optimized Extraction of Insect Genomic DNA for Long-Read Sequencing.

Long-read sequencing technologies continue to increase the length of reads, and at present can average read lengths of >20 kb up to 60-80 kb. Now the challenge is to extract genomic DNA of sufficient fragment size and quality to support longer read lengths. We developed a successful method to consistently obtain high-quality long genomic DNA from insects.

Large cystic tumour at the chest wall mimicking an echinococcosis: a case report.

The authors report an atypical late onset of a big axillary lymphatic malformation in a 41-year-old male. Considering the patient's history and clinical findings at first presentation, the swelling was highly suspicious for malignancy or cystic echinococcosis. A consequent CT showed non infiltrative growth with inhomogeneous density but remained non conclusive regarding diagnosis.

An analysis of breast sensation following inferior pedicle mammaplasty and the effect of the volume of resected tissue.

The aim of our study was to evaluate if the amount of resected breast tissue has an influence on breast sensitivity after inferior pedicle mammaplasty. In the prospective study, 15 patients (30 breasts) were divided into two groups: group I (less than 400 g resection) and group II (more than 400 g resection). Preoperatively and six months postoperatively a touch test (Semmes-Weinstein monofilaments) and temperature (warm and cold) tests were performed.

[Morphological changes in the healing process of mixed grafts in animal studies with reference to the immunological modification processes based on sex-specific chromosome analysis. A cytogenetic and histological study in rats].

In the rat, free skin grafts exchanged between genetically different clones were completely rejected after three weeks. These transplants were not rejected when island autografts were set into preformed holes in the allografts. A typical graft-rejection pattern in the mixed skin transplants showed initial healing of the alloepidermis, which was later replaced by outgrowing autoepidermis from the interspersed islands.