Introduction. Male infertility has multiple etiology, most commonly caused by spermatogenesis disorders, clinically manifested by oligo/azoospermia. Until recently, Y microdeletion had little clinical significance since ...

Introduction. The researches carried out in the last decades have brought more and more evidence that nitric oxide (NO) and its derivatives play an important role in various physiological and pathological processes, ...

Background. Rheumatic mitral stenosis (MS) is associated with left atrium (LA) thrombus in patients in sinus rhythm (3 % – 13 %) and markedly increases in atrial fibrillation (~33 %).The presence of LA thrombus carries ...

Introduction. Circadian rhythms are variations in physiology and behaviour that persist with a cycle length close to 24 hours. Such biological rhythms include the sleep and wake cycle, alertness, daily cycles of hormonal ...

Introduction. Neuroblastoma is the most common solid tumor in infants and young children and accounts for 8% of all childhood tumors. The prevalence is 1 in 7000 live births. Some studies show a two-phase incidence with ...

Introduction.Pelvic inflammatory disease is an infection of the upper genital tract (uterus, uterine tubes, ovaries). It is usually an ascending infection from the lower genital tract - bacteria spreading directly from ...

Introduction. By 2025, worldwide, approximately 300 million people is estimated to have type 2 diabetes. In 72-85% of cases the type 2 diabetes is Associated with atherogenic dyslipidemia, the important cardiovascular ...

Introduction: Cancer is the result of uncontrolled cell divisions, and angiogenesis processes are those that support and maintenance the tumor changes. Recently, the angiogenesis becomes one of the most studied physiological ...

Introduction: The immune process in the pathogenesis of the tumors represents an actual subject for the prevention and the treatment of the cancer, which frequency is decreasing while studying the newest theories of the ...

Introduction: Ultradian biorhythms represent biological rhythms which last between 20 and 90 minutes. They were discovered in 50s of the last century and approved by using several techniques of quantitative and qualitative ...