The reference value of serum vitamin B12 among An-Najah National University.

Background: Serum vitamin B12 plays a crucial role in cellular growth, DNA synthesis, and maintaining a healthy nervous system. Its deficiency can lead to various health issues, including cardiovascular problems. The reference range for vitamin B12 varies between populations due to cultural, genetic, and dietary differences.

Prevalence of Helicobacter pylori resistance to certain antibiotics at An-Najah University Hospital: a cross-sectional study.

Antibiotic resistance among bacteria is recognized as the primary factor contributing to the failure of treatment. In this research, our objective was to examine the prevalence of antibiotic resistance in H. pylori bacteria in Palestine.

A rare delayed onset of esophageal varices and portal vein thrombosis in a ten-year-old patient following umbilical vein catheterization.

Introduction And Significance: Portal vein thrombosis (PVT) is not commonly observed in patients, particularly those who have gone through neonatal intensive care unit (NICU) stays and had umbilical catheters. Although PVT can potentially cause hypertension and gastrointestinal bleeding it is highly unusual for this condition to manifest during childhood.

Case Presentation: The authors present a case of a 10-year-old child who developed portal hypertension, esophageal varices, and multiple thrombophilia associated mutations.