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Seroepidemiology of Leishmania infantum in rural dogs in Golestan province, Iran
Namroodi, S, Saberi, M,
Volume 9, Issue 2 (may,jun 2015[PERSIAN] 2015)
Abstract

Abstract

Background and Objective: Dogs have been introduced as a major reservoir of Leishmania infantum.  Concerning the increased sporadic reports of humeral visceral leishmaniasis in Golestan province, we aimed to study seroepidemiology of leishmania infantum in Rural Dogs.

Material and Methods:  this study was conducted in 2012 - 2014 on 150 Serum samples of rural dogs, from 10 districts of Golestan province. The samples were analyzed by ELIZA kit.

Results:  the frequency of leishmania infantum was   15.3% and it was higher in the dogs aged more than four. There were no differences in Leishmania infantum infection between sexes and seasons.

Conclusion: our findings indicate the presence of Leishmania infantum in Golestan Province.  Given the presence of positive titer of Leishmania infantum in dogs without clinical signs, we emphasize the main role of rural dogs in transmitting Leishmania infuntum to villagers in the studied area.

 Keywords: Leishmania Infantum, ELIZA, Rural Dogs, Golestan Province


Prevalence of Leishmaniasis in Rodent's Fauna in Turkmen Sahra, Iran
Gholipoory, M, Rezai, Hr, Namroodi, S, Arabkhazaeli, F,
Volume 9, Issue 3 (Jul,Aug2015[PERSIAN] 2015)
Abstract

Abstract

Background and Objective: Given the Leishmaniasis is endemic in Turkmen Sahra, we aimed to study the contamination of rodents with this disease.

Material and Methods: Seventy-three rodents were collected from three regions (Gonbad, Gomishan and Bandar Turkmen) using live traps. In laboratory, morphometric characteristics were measured and for diagnosis of Leishmaniasis CL, the scratches obtained from their ears were examined by microscopic methods using Giemsa.

Results: The most frequent rodents were Meriones libycu (10.95%), Rattus norvegicus (21.91%), and Mus musculus (67.12%). Eleven (15.06%) of them were infected by cutaneous Leishmaniasis (CL).

Conclusion: Because of infection rate, there is a high transmission risk of CL in the studied region.

Keywords: Rodentia; Leishmaniasis; Turkmen Sahra; Meriones; Mus Musculus; Rattus Norvegicus


Effects of Bacterial Cellulose Nanofiber on Lead Concentration in Kidney and Liver Tissues of Wistar Rats
Nahid Valipoor, Somayeh Namroodi, Shohreh Taziki, Hassan Rezaei,
Volume 16, Issue 4 (Jul-Aug 2022)
Abstract
Background and objectives: Lead (Pb) is among the most toxic pollutants that affect health of both humans and animals. Finding a way to prevent Pb accumulation in animals’ bodies seems necessary. Bacterial cellulose nanofiber (BCNF) can remove heavy metals from aqueous solutions. This study investigates effects of oral consumption of BCNF, as a chelator, on Pb concentration in the kidney and liver tissues of rats.
Methods: Sixteen Wistar rats (aged 6-8 weeks) were divided into four groups: 1. control, 2. fed with Pb, 3. fed with Pb (50 μg/g) and BCNF (16 μg/g) simultaneously, and 4. fed with Pb and BCNF with 4 hours interval. The rats were euthanized, and the kidney and liver tissues were separated. After acidic digestion of the tissue samples, Pb concentration was measured by atomic absorption spectrometry.
Results: The mean concentration of Pb in the kidney and liver tissues of rats fed with Pb and BCNF were significantly lower than that of rats fed only with Pb. In addition, the mean Pb concentration in rats of group 3 was lower than that of group 4.
Conclusion: The results of this study showed the favorable effects of BCNF on prevention of Pb accumulation in the kidney and liver tissues of rats. Moreover, removal of Pb may be related to binding of BCNF with Pb in the gut or blood. More studies are necessary to determine the exact mechanisms through which BCNF can reduce Pb accumulation.
 
Impact of Nanochitin on Serum Concentration of Iron and Calcium in Wistar Rats
Negin Valizadeh Keshmeshtapeh, Dr Somayeh Namroodi, Dr Shohreh Taziki,
Volume 16, Issue 5 (Sep-Oct 2022)
Abstract
Background and objectives: Considering the increasing use of nanochitin for the removal of heavy metals from aqueous solutions, examining the biological effects of this substance on the level of essential metals for humans and animals is crucial. Therefore, this study investigated impact of oral administration of nanochitin on serum levels of iron (Fe) and calcium (Ca) in Wistar rats.
Methods: Twenty male Wistar rats were randomly divided into four treatment groups and one control group. Two groups were fed with nanochitin at doses of 1.6 and 2.6 μg/g for 6 weeks, and the other two groups received the mentioned doses for 10 weeks. Serum concentrations of Fe and Ca were measured using atomic absorption spectroscopy.
Results: Oral administration of 2.6 μg/g nanochitin for 10 weeks caused a significant decrease in serum Ca and Fe concentrations (p<0.05). Oral administration of 1.6 and 2.6 μg/g nanochitin for 6 weeks caused a non-significant reduction in serum Fe and Ca concentrations (p>0.05). However, nanochitin consumption for 10 weeks resulted in a significant decrease in serum Fe concentration but not Ca.
Conclusion: The limited reduction of serum Fe and Ca concentrations after oral consumption of nanochitin at a low dose and for a limited duration indicates that the controlled use of nanochitin could be safe for animals. However, complementary studies are needed to determine the exact effects of nanochitin on the animals’ bodies. On the other hand, it is recommended to use Fe and Ca supplements after consuming high doses of nanochitin for longer periods.
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