Serum leptin and its relation to anthropometric measures of obesity in pre-diabetic Saudis

Background: Little information is available on leptin concentrations in individuals with IGT. This study aims to determine and correlate leptin levels to anthropometric measures of obesity in prediabetic, (IFG and IGT), type 2 diabetic and normoglycaemic Saudis. Methods: 308 adult Saudis (healthy controls n = 80; pre-diabetes n = 86; Type 2 diabetes n = 142) participated. Anthropometric parameters were measured and fasting blood samples taken. Serum insulin was analysed, using a solid phase enzyme amplified sensitivity immunoassay and also leptin concentrations, using radio-immunoassay. The remaining blood parameters were determined using standard laboratory procedures. Results: Leptin levels of diabetic and pre-diabetic men were higher than in normoglycaemic men (12.4 [3.2–72] vs 3.9 [0.8–20.0] ng/mL, (median [interquartile range], p = 0.0001). In females, leptin levels were significantly higher in pre-diabetic subjects (14.09 [2.8–44.4] ng/mL) than in normoglycaemic subjects (10.2 [0.25–34.8] ng/mL) (p = 0.046). After adjustment for BMI and gender, hip circumference was associated with log leptin (p = 0.006 with R2 = 0.086) among all subjects. Conclusion: Leptin is associated with measures of adiposity, hip circumference in particular, in the non-diabetic state among Saudi subjects. The higher leptin level among diabetics and pre-diabetics is not related to differences in anthropometric measures of obesity

Vanishing bile duct syndrome in a hodgkin′s lymphoma patient with fatal outcome despite lymphoma remission

Vanishing bile duct syndrome (VBDS) is a condition resulting from severe bile duct injury, progressive destruction, and disappearance of intrahepatic bile ducts (ductopenia) leading to cholestasis, biliary cirrhosis, and liver failure. VBDS can be associated with a variety of disorders, including Hodgkin′s lymphoma (HL). We describe a 33-year-old male patient who presented with lymphadenopathy and jaundice, and was diagnosed to have HL. Serum bilirubin worsened progressively despite chemotherapy, with a cholestatic pattern of liver enzymes. Diagnosis of VBDS was established on liver biopsy. Although remission from HL was achieved, the patient died of liver failure. Presence of jaundice in HL patients should raise the possibility of VBDS. This report discusses the difficulties of delivering chemotherapy in patients with liver dysfunction. HL-associated VBDS carries a high mortality but lymphoma remission can be achieved in some patients. Therefore, liver transplantation should be considered early in these patients