Association between White Blood Cells Count and Diabetes Mellitus in Tabari Cohort Study: A Case-Control Study

The possible role of the vasopressin system in hematopoiesis

Vasopressin is a pleiotropic hormone that controls body fluid homeostasis. Vasopressin has also been proposed to be involved in erythropoiesis, thrombocyte activity and inflammation. However, whether increasing vasopressin is associated with changes in hematopoietic markers is not known. To evaluate this gap of knowledge we measured the vasopressin marker copeptin and markers of erythropoiesis (erythrocyte count, hemoglobin (Hb), red blood cell distribution width (RDW), mean corpuscular volume (MCV), erythrocyte volume fraction (EVF)), leukocyte count (total count, lymphocytes, neutrophils) and thrombocyte count in 5312 participants from the Swedish CArdioPulmonary bioImage Study (SCAPIS). The associations between increasing copeptin tertile and the hematopoietic markers were analyzed in multivariate linear regression analyses. We found that increasing copeptin tertile was significantly (p < 0.001) associated with increasing erythrocytes, RDW, EVF, Hb, leukocytes and neutrophils after adjustment for age, sex, current smoking, prevalent diabetes, hypertension, creatinine, body mass index and physical activity. Increasing copeptin tertile was, however, not associated with change in MCV, lymphocyte or thrombocyte count. In conclusion, we found that increasing copeptin levels are positively associated with markers of erythropoiesis and leukocyte count in the general population. These results warrant further research on possible mechanistic effects of vasopressin on hematopoiesis.

Association of neck circumference and waist-hip ratio with total leukocyte count in healthy Indian adolescents

OBJECTIVES

One of the major risk factors for cardiovascular disease is obesity, particularly abdominal and visceral obesity. Another concern for it is inflammation. Both risk factors are interrelated as obesity is a state of subacute low-grade systemic inflammation. As neck circumference and waist-hip ratio are potential indicators of obesity, we wanted to compare the level of total leukocyte count in subjects with normal and high neck circumference and waist-hip ratio. We also wanted to observe whether there is any correlation between neck circumference and waist-hip ratio with total leukocyte count.

METHODS

We selected 62 subjects (30 males, and 32 females) for the study. Both males and females were categorized into groups of normal and high neck circumference and waist-hip ratios. The total leukocyte count was compared among the groups and we correlated neck circumference and waist-hip ratios with total leukocyte count. Statistical analysis was done with SPSS version 23.0.

RESULTS

We observed a statistically significant higher value of total leukocyte count in males with a high waist-hip ratio. But there was not a significant increase in TLC in males with high neck circumference. In females, the values were insignificant. On Pearson correlation, there was a negative correlation between neck circumference, waist-hip ratio, and total leukocyte count in both genders which is not significant.

CONCLUSIONS

These findings suggest that waist-hip ratio rather than neck circumference might be a proxy measure of a marker of inflammation in males.

Role of hematological parameters in pathogenesis of diabetes mellitus: A review of the literature

Diabetes mellitus (DM) is characterized by hyperglycemia and abnormalities in insulin secretion and activity. There are numerous hematological parameters; however, this review article only focuses on red blood cells, hemoglobin, hematocrit, red blood cell indices, platelet count, white blood cells, lymphocytes, neutrophils, monocytes, eosinophils, neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio, and monocyte-to-lymphocyte ratio, which play an essential role in the pathogenesis of DM. Also, this review article aims to report the relationship between these hematological parameters and the development of DM. In con-clusion, this article shows that increased levels of platelets, red blood cells, hematocrit, lymphocytes, eosinophils, neutrophils, neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio, and monocyte-to-lymphocyte ratio and decreased levels of hemoglobin are involved in the pathogenesis of DM. However, the role of basophils in DM is unknown yet.