Dynamic transitions of initiator binding coordinate the replication of the two chromosomes in Vibrio cholerae.

The replication of the two chromosomes in the pathogenic bacterium Vibrio cholerae is coordinated by the binding of initiator protein RctB to a checkpoint sequence, crtS. Replication of crtS on the primary chromosome (Chr1) triggers replication of the secondary chromosome (Chr2), but the details are poorly understood. Here, we analyze RctB binding patterns in the V.

Gut microbiome and clinical and lifestyle host factors associated with recurrent positive RT-PCR for SARS-CoV-2.

Background: SARS-CoV-2 and COVID-19 are still active in the population. Some patients remained PCR-positive for more than 4 weeks, called "persistently PCR-positive". Recent evidence suggests a link between the gut microbiota and susceptibility to COVID-19, although no studies have explored persistent PCR conditions.

Sleep bruxism and GERD correlation in a general population convenience sample.

Objective: To investigate the relationship between sleep bruxism(SB) and gastroesophageal reflux disease (GERD) with the use of validated questionnaires in a general population convenience sample.

Methods: SB behaviour was evaluated in accordance with the Subject-Based Assessment strategy recommended in the Standardized Tool for the Assessment of Bruxism (STAB). .

Blue light diode laser for treating benign maxillofacial vascular lesions: comparison of various techniques using the same diode laser.

Maxillofacial benign vascular lesions may require removal for aesthetic purpose or bleeding. Lasers have been substituting traditional excision. Fifteen vascular lesions were treated with different Blue Diode Laser protocols: laser forced dehydration (LFD), intralesional coagulation (ILC), surgical excision.