effect of fetal liver-derived cell suspension allotransplantation on patients with diabetes: first year of follow-up

Stem cell-based therapies have recently opened up new horizons for treatment of various types of diseases including diabetes mellitus. However, long-term efficacy and safety of these novel modalities still remain a serious question. Hereby, we aim to report the one-year follow-up results in the diabetic patients who underwent fetal liver-derived hematopoietic stem cell allotransplantation. Fifty six patients with type one [n=30] and type two [n=26] diabetes, aged 10-58 years old [32.8 +/- 16.3] were divided into the intervention and placebo group. The patients in the intervention group underwent fetal liver-derived hematopoietic stem cell transplantation while the patients in the placebo group received 5 ml of normal saline both via an intravenous route. The patients were visited at regular intervals to evaluate the efficacy of transplantation in glycemic control as well as possible complications. In the 6[th] month of the follow-up, there was a significant decrease in HbA[1]c levels in all groups without any rise in the fasting c-peptide. However, none of the precipitants transiently or continuously became insulin free in the first year after transplantation. It can be concluded that, in this study, fetal liver-derived hematopoietic stem cell transplantation had no significant effects on glycemic control. The heterogeneity of our patients might account for the negative results. Hence, longer follow-up results will be reported in the near future.

[ assessment of efficiency of eliminating group A human rotaviruses in urban and hospitalized sewage refining system of Shiraz city]

The group A human rotavirus is the most prevalent agents causing diarrhea in children which is found in water sources including waste and treatment waters worldwide. The aim of this study was environmental surveillance of group A human Rotavirus from influent and effluent of urban and hospital sewage systems in Shiraz. In this cross-sectional study, 60 specimens from both influent and effluent system of urban and hospital sewage disposal systems of Shiraz Nemazee hospital were collected by using grab sampling method. All samples concentrated by using two concentration methods, including Pellet and Two-phase. Then Group A human rotaviruses were detected with enzyme immunoassay [EIA]. 15 [25%] group A human rotaviruses were detected, of which 11 samples [73/33%] belonged to the influent part and 4 samples [26/67%] were related to the effluent. There was a significant difference between influent and effluent of systems. Also statistical significant differences were found between the distribution of rotaviruses and months of sampling. This study reveals the inefficiency of refining system in attempting to complete elimination of group A human rotaviruses.

Stem cell therapy in treatment of different diseases

Stem cells are undifferentiated cells with the ability of proliferation, regeneration, conversion to differentiated cells and producing various tissues. Stem cells are divided into two categories of embryonic and adult. In another categorization stem cells are divided to Totipotent, Multipotent and Unipotent cells. So far usage of stem cells in treatment of various blood diseases has been studied [such as lymphoblastic leukemia, myeloid leukemia, thalassemia, multiple myeloma and cycle cell anemia]. In this paper the goal is evaluation of cell therapy in treatment of Parkinson's disease, Amyotrophic lateral sclerosis, Alzheimer, Stroke, Spinal Cord Injury, Multiple Sclerosis, Radiation Induced Intestinal Injury, Inflammatory Bowel Disease, Liver Disease, Duchenne Muscular Dystrophy, Diabetes, Heart Disease, Bone Disease, Renal Disease, Chronic Wounds, Graft-Versus-Host Disease, Sepsis and Respiratory diseases. It should be mentioned that some disease that are the target of cell therapy are discussed in this article

[Leptin: a new adypocyte hormone and its role in the obesity]

Leptin is a 16-kD protein which is secreted from white adipocytes and, its discovery has generated enormous interest in the regulation of energy balance. Leptin has been implicated in the regulation of food intake, energy expenditure, and whole-body energy balance in animals and human. Plasma leptin levels correlate with fat storages and respond to changes in energy balance. It was initially proposed that leptin serves a primary role as an anti-obesity hormone, but this role is commonly thwarted by leptin resistance. The profound effects of leptin on regulating body energy balance, make it as a prime candidate for drug therapies of obesity in humans and animals. Despite the recent achievements in unearthing the role of leptin in the pathophysiology of obesity, many important questions still remained that must be responded. More studies with follow-up designs and genetic evaluations are warranted to understand the comprehensive role of leptin in human. In this letter we have a review of known effects of leptin on human obesity up to now