Improved salt iodation methods for small-scale salt producers in low-resource settings in Tanzania

Background: Universal salt iodation will prevent iodine deficiency disorders (IDD). Globally, salt-iodation technologies mostly target large and medium-scale salt-producers. Since most producers in low-income countries are small-scale, we examined and improved the performance of hand and knapsack-sprayers used locally in Tanzania. Methods: We studied three salt facilities on the Bagamoyo coast, investigating procedures for preparing potassium-iodate solution, salt spraying and mixing. Different concentrations of solution were prepared and tested using different iodation methods, with the aim of attaining correct and homogeneous iodine levels under real-life conditions. Levels achieved by manual mixing were compared to those achieved by machine mixing. Results: The overall median iodation level in samples of salt iodated using previously existing methods was 10.6 ppm (range 1.1 – 110.0 ppm), with much higher levels in the top than the bottom layers of the salt bags, p < 0.0001. Experimentation using knapsack-sprayers and manual mixing led to the reliable achievement of levels (60.9 ppm ± 7.4) that fell within the recommended range of 40 – 80 ppm. The improved methods yielded homogenous iodine concentrations in all layers of salt-bags (p = 0.58) with 96% of the samples (n = 45) falling within 40 – 80 ppm compared to only 9% (n = 45) before the experiment and training (p < 0.0001). For knapsack-spraying, a machine mixer improved the iodine levels and homogeneity slightly compared to manual mixing (p = 0.05). Conclusion: Supervised, standardized salt iodation procedures adapted to local circumstances can yield homogeneous iodine levels within the required range, overcoming a major obstacle to universal salt iodation

Fatal cerebral venous sinus thrombosis as a manifestation of uncontrolled systemic lupus erythematosus in a young African female

Abstract In a young patient with systemic lupus erythematosus presenting with status epilepticus and neurological deficits, early brain imaging, risk factor identification and prompt treatment of underlying lupus flare‐up and cerebral venous sinus thrombosis could significantly improve the management and prognosis

Effectiveness of Quadruple Fortified Salt Compared to Double and Single Fortified Salts in Improving Haemoglobin Levels Among Moderately Anemic Women Aged 18&ndash;49 Years in Rural Low Resource Setting: Randomized Clinical Trial

Paschal Mdoe,1 Venkatesh Mannar,2 Museveni Justine,1 Godfrey Guga,1 Rose Gadiye,1 Vincent Assey,3 Caroline Kimathi,1 Fatma Abdallah,3 John Paschal,1 Estomih Mduma,1 Levente Diosady2 1Department of Obstetrics and Gynecology, Haydom Lutheran Hospital, Manyara, Tanzania; 2Department of Food Engineering, University of Toronto, Toronto, ON, Canada; 3Department of Food and Nutrition, Tanzania Food and Nutrition Center, Dar Es Salaam, TanzaniaCorrespondence: Paschal Mdoe, P.O. Box 9000, Manyara, Tanzania, Tel +255754429346, Email [email protected]: Micronutrients (iron, iodine, vitamin B12 and folate) deficiency is prevalent globally affecting more than two billion people majority being from low- and middle-income countries. Women of reproductive age are in an increased risk of iron deficiency. About 29.4% of women aged 15– 49 years worldwide are estimated to be affected by iron deficiency. Food fortification with micronutrients is important in addressing micronutrients deficiency.Aim: To evaluate if the quadruple fortified with iodine, iron, vitamin B12, and folic acid (QFS), will be more effective in improving the hemoglobin level of women aged 18 to 49 years compared to the double fortified with iodine and iron (DFS) and iodized salt in rural Tanzania.Methods: A double-blinded three-arm randomized controlled trial was conducted between July 2020 and December 2021 at the Haydom Lutheran Hospital catchment area. We randomized women aged 18– 49 years with haemoglobin between 8 and 12 g/dl who were neither pregnant nor lactating into three groups 55 Iodized salts (IS), 57 Double fortified salt (DFS), and 57 quadruple fortified salt (QFS). The participants used study salt for 10 months.Results: Over the ten months of use of study salts, the overall mean haemoglobin level of women was significantly higher in QFS by 0.43g/dl compared to IS. The ferritin levels were significantly higher in QFS and DFS by 9.60ng/mL and 9.09ng/mL, respectively, compared to IS. Vitamin B12 was insignificantly higher in QFS by 52.19pg/mL compared to DFS, and folate concentration were insignificantly higher in QFS by 7.57nmoL/L and 4.51nmoL/L compared to DFS and IS groups, respectively.Conclusion: Salt fortification with iron, iodine, folate, and Vitamin B12 is feasible and has the potential to increase the serum ferritin, Vitamin B12 and folate levels with subsequent improvement of haemoglobin levels of individuals with relatively low haemoglobin.ClinicalTrial.org Number: NCT04404751.Keywords: iron-deficiency anemia, iodine, iron, vitamin B12, folat

The topography, architecture and structure of the enteric nervous system in the jejunum and ileum of cattle

To date, there appear to have been no detailed and clear descriptions of the nerve plexuses and their subdivisions in the intestine of cattle. In this study, the enteric nervous system in the jejunum and ileum of 12 1-y-old calves was examined using neurofilament protein and vasoactive intestinal peptide immunohistochemistry in wholemounts and paraffin sections combined with staining of paraffin and historesin sections with haematoxylin and eosin. The main organisation of the plexuses was similar to that of the pig, horse and man with external and internal submucous plexuses being morphologically distinct, with further subdivisions of the internal submucous plexus into the external and internal subplexuses. However, in contrast to pig, horse and man, the submucous layer was firmly attached to the inner circular muscle layer. The myenteric plexus was well developed with large ganglia, and primary and secondary nerve strands. Its main axis was oriented parallel to the outer longitudinal smooth muscle; large ganglia and primary nerve strands fused to form complex ganglia, and 2 types of tertiary nerve strands were observed. Antibodies to neurofilament proteins and vasoactive intestinal peptide revealed adendritic, pseudouniaxonal or multiaxonal type II neurons only in the myenteric and submucous plexuses. This appears to be the first report of the identification of isolated uniaxonal, multidendritic type IV neurons in the mucous pericryptal plexus. The new information presented here provides further evidence for the existence of anatomical and functional differences between the external and internal submucous plexuses and for supporting the nomenclature proposed earlier

Iodine deficiency persists in the Zanzibar Islands of Tanzania

<p>The inadequate intake of iodine documented in the Zanzibar Islands belies the common assumption that an island population with access to seafood is not at risk for iodine-deficiency disorders.</p> <p> </p