Many bacterial communities display oscillations throughout the day; it has been shown that in humans, healthy gut microbiome also shows fluctuations abundance of community, related with feeding times and sleep cycles. Likewise, human milk there are beneficial bacteria undergo changes same time interval transferred to newborn by breastfeeding, colonizing gastrointestinal tract. The aim this work...

background: time of day can affect the outcome of medical procedures and surgical operations. the current study was designed to assess whether time of day can influence the quality of breast cancer surgery or not. methods: patients who underwent breast cancer surgery and axillary lymph node dissection in tehran, iran between march 2012 and march 2013 were enrolled. surgeries were categorized in...

Day-to-day variation of the corrected orthogonial electrocardiogram was investigated in 20 normal subjects. Ten recordings were made in each individual witlh chest electrode positions left unmarked first, after which 10 subjects underwent another series of 10 consecutive daily recordings with marked electrode locations. Mean and maximal day-to-day variations of durations and amplitudes of diffe...

Abstract Background Maximal aerobic capacity, e.g. maximal oxygen uptake (V̇O 2 max), is not constant, and it has a time-dependent variation based on the condition of individual. On other hand, arterial properties play an important role in determining performance, lower stiffness associated with higher cardiorespiratory fitness levels. This study examined whether individual variations performanc...