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1 – 10 of 107Tuba Fayyaz, Muhammad Imran Qadeer, Muhammad Irfan, Fareeha Amjad, Tamseel Fatima and Shahida Husnain
Phytochemicals are known for their iron chelation ability with no side effects. Lignans and polyphenols in flaxseed have iron-chelating and antioxidant abilities. Therefore, this…
Abstract
Purpose
Phytochemicals are known for their iron chelation ability with no side effects. Lignans and polyphenols in flaxseed have iron-chelating and antioxidant abilities. Therefore, this study aims to assess the ability of flaxseed to reduce iron overload and minimize its negative health effects.
Design/methodology/approach
A randomized control trial was conducted. A total of 96 patients were enrolled in this study and randomized into three groups: two intervention groups had 3 or 7 g of whole flaxseed and a control group took a placebo (gram seeds). Interventions were administered for 12 weeks. A hematological profile, ferritin quantification in serum, and liver function tests were performed to evaluate the effects of flaxseed.
Findings
It was observed that flaxseed with synthetic iron chelators caused a significant reduction in ferritin levels compared with synthetic chelators. The pre-transfusion hemoglobin level was also improved in the intervention group. A significant reduction (p value 0.0003) in ferritin levels among intervention groups indicated that flaxseed reduced the iron overload. It can be concluded that flaxseed reduced iron overload in thalassemia major patients with no side effects and may reduce iron overload solely when taken in adequate quantity.
Originality/value
Although the study targets a non-specific protein-ferritin for the evaluation of iron-overload, the initial ferritin value and reduction in these levels indicate the efficacy of ferritin for reducing iron overload in thalassemia major patients. Moreover, this is the first study, to the best of the authors’ knowledge, that demonstrates the iron-chelation ability of flaxseed in thalassemia major patients, suggesting the use of flaxseed for iron chelation.
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Since the beginning of the 20th century environmental health researchers have known about the association between toxicant exposure and disease. However, that knoweldge has not…
Abstract
Purpose
Since the beginning of the 20th century environmental health researchers have known about the association between toxicant exposure and disease. However, that knoweldge has not been well integrated into mainstream medicine. Shedding light on why is the focus of this chapter.
Methodology/approach
To shed light on this issue I analyze the 2011 American Academy of Pediatrics’ clinical practice guidelines for Attention Deficit/Hyperactivity Disorder (ADHD), focusing specifically on the omission of environmental health research pertaining to ADHD symptoms and exposures, such as lead and mercury.
Findings
I found that while environmental researchers have been documenting the link between lead and ADHD for over forty years, the American Academy of Pediatrics has completely omitted this research from its 2012 clinical practice guidelines. Moreover, I argue this omission can be traced to competitive pressures to protect medical jurisdiction, and a reductionist worldview that emphasizes treatment over prevention.
Originality/value of paper
This is the first attempt to analyze the way clinical practice guidelines help reinforce and perpetuate dominant medical perspectives. Moreover, to shed explanatory light, this chapter offers a synthetic explanation that combines materialist and ideological factors.
Research implications
Beyond the specific case of ADHD, this chapter has implications for understanding how and why environmental health research is omitted from other materials produced by mainstream medicine, such as materials found in the medical school curriculum, continuing medical education, medical journals, and on the medical association web sites.
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Rahul M. Shinde and Raymond R. Mahoney
The purpose of this paper is to study the effect of whey and whey components on the production of dialyzable non‐heme iron – an in vitro indicator of bioavailable forms of the…
Abstract
Purpose
The purpose of this paper is to study the effect of whey and whey components on the production of dialyzable non‐heme iron – an in vitro indicator of bioavailable forms of the mineral.
Design/methodology/approach
Whey, processed whey and whey components were mixed with ferric iron and digested in vitro with pepsin and pancreatin/bile using a dialysis bag containing bicarbonate for pH adjustment. Total and ferrous dialyzable iron were measured and compared to values from protein and non‐protein controls.
Findings
Whey produced much more dialyzable iron than egg albumin but less than deproteinized whey. Most of the iron was ferric. Whey protein concentrate was as effective as egg abumin but whey protein isolate, α‐lactalbumin and β‐lactoglobulin slightly reduced dialyzable iron formation. Milk salts produced more dialyzable iron than whey and about as much as deproteinized whey. The major component of whey producing dialyzable iron was citrate, which competes for iron chelation with the whey protein.
Originality/value
This study demonstrates that whey generates a large amount of dialyzable iron from ferric iron sources and that the iron is primarily due to chelation with citrate rather than to digestion of whey proteins. However, the effect of citrate is reduced by whey proteins.
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Fatemeh Mollaamin and Majid Monajjemi
Bisphosphonate (BP) medications can be applied to prohibit the damage of bone density and the remedy of bone illnesses such as osteoporosis. As the metal chelating of phosphonate…
Abstract
Purpose
Bisphosphonate (BP) medications can be applied to prohibit the damage of bone density and the remedy of bone illnesses such as osteoporosis. As the metal chelating of phosphonate groups are nearby large with six O atoms possessing the high negative charge, these compounds are active toward producing the chelated complexes through drug design method. BP agents have attracted much attention for the clinical treatment of some skeletal diseases depicted by enhancing of osteoclast-mediated bone resorption.
Design/methodology/approach
In this work, it has been accomplished the CAM-B3LYP/6–311+G(d, p)/LANL2DZ to estimate the susceptibility of SWCNT for adsorbing alendronate, ibandronate, neridronate and pamidronate chelated to two metal cations of 2Mg2+, 2Ca2+, 2Sr2+ through nuclear magnetic resonance and thermodynamic parameters. Therefore, the data has explained that the feasibility of using SWCNT and BP agents becomes the norm in metal chelating of drug delivery system which has been selected through alendronate → 2X, ibandronate → 2X, neridronate → 2X and pamidronate → 2X (X = Mg2+/Ca2+/Sr2+) complexes.
Findings
The thermodynamic results have exhibited that the substitution of 2Ca2+ cation by 2Sr2+ cation in the structure of bioactive glasses can be efficient for treating vertebral complex fractures. However, it has been observed the most fluctuation in the Gibbs free energy for BPs → 2Sr2+ at 300 K. Furthermore, Monte Carlo simulation has resulted by increasing the dielectric constant in the aqueous medium can enhance the stability and efficiency of BP drugs for preventing the loss of bone density and treating the osteoporosis.
Originality/value
According to this research, by incorporation of chelated 2Mg2+, 2Ca2+ and 2Sr2+ cations to BP drugs adsorbed onto (5, 5) armchair SWCNT, the network compaction would increase owing to the larger atomic radius of Sr2+ cation rather than Ca2+ and Mg2+, respectively.
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Kessara Kanchanapoom and Jongsawas Chongwatpol
Customer lifetime value (CLV) is one of the key indicators to measure the success or health of an organization. How can an organization assess the organization's customers'…
Abstract
Purpose
Customer lifetime value (CLV) is one of the key indicators to measure the success or health of an organization. How can an organization assess the organization's customers' lifetime value (LTV) and offer relevant strategies to retain prospective and profitable customers? This study offers an integrated view of different methods for calculating CLVs for both loyalty members and non-membership customers.
Design/methodology/approach
This study outlines eleven methods for calculating CLV considering (1) the deterministic aspect of NPV (Net present value) models in both finite and infinite timespans, (2) the geometric pattern and (3) the probabilistic aspect of parameter estimates through simulation modeling along with (4) the migration models for including “the probability that customers will return in the future” as a key input for CLV calculation.
Findings
The CLV models are validated in the context of complementary and alternative medicine (CAM)in the healthcare industry. The results show that understanding CLV can help the organization develop strategies to retain valuable customers while maintaining profit margins.
Originality/value
The integrated CLV models provide an overview of the mathematical estimation of LTVs depending on the nature of the customers and the business circumstances and can be applied to other business settings.
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V.S. Muralidharan, A.M. Uduman Mohideen and R. Arun Mozhi Selvan
Introduction The mechanism of the inhibition of the corrosion of iron in HCl by acetylenic alcohols, is investigated by weight change method, galvanostatic method and faradic…
Abstract
Introduction The mechanism of the inhibition of the corrosion of iron in HCl by acetylenic alcohols, is investigated by weight change method, galvanostatic method and faradic impedance method. Propargyl alcohol offers greater protection than 3‐butyn‐2ol, 2‐methyl‐3‐butyn‐2‐ol and 2‐butyn 1,4 diol in hydrochloric acid solution of concentrations (1.0 to 8.0M). The corrosion of pure iron in hydrochloric acid solutions involves the participation of adsorbed FeOH intermediate and forms chlorhydroxy iron complex. The addition of ferrous ion is found to favour the three‐dimensional chelation with inhibitor molecule, leading to polymen film formation. With prolonged exposure the thickness of the polymer film increases.
Muhammad Nadeem Asghar, Javaid Akhtar, Muhammad Shafiq, Iram Nadeem, Muhammad Ashfaq and Sammia Shahid
The cowpea plant, being affordable and protein‐rich, is considered poor man's meat. The aim of this paper is to undertake a detailed investigation regarding in vitro total…
Abstract
Purpose
The cowpea plant, being affordable and protein‐rich, is considered poor man's meat. The aim of this paper is to undertake a detailed investigation regarding in vitro total antioxidant capacity (TAC) and chemical constituents of the vegetable oils from seeds of this plant, taking its nutritional value into consideration.
Design/methodology/approach
Vegetable oils of different indigenous cowpea varieties were obtained using soxhelt extraction assembly and subjected to GC‐MS analyses and various antioxidant assays including 2,2′‐azinobis(3‐ethylbenzothiazoline‐6‐sulpohonic acid) (ABTS) radical cation scavenging, ferr, 2.2′‐diphenyl‐1‐picrylhydrazil (DPPH) radical scavenging, total phenolic contents (TPC), lipid peroxidation inhibition, and iron chelation activity.
Findings
Various chemical constituents including different hydrocarbons, tocopherols, ketones, fatty esters, estragole and cedrene were identified. TPCs were found to be 5.439, 5.7279, 7.6126, 6.7573 and 10.0591 mg/L gallic acid equivalent for S.A. Dandy, Elite, White Star, CP‐386 and FBD Rawan varieties, respectively. Employing ABTS radical decoloration assay a significant linear correlation (R2=0.997, 0.996, 0.997, 0.996 and 0.997 for S.A. Dandy, Elite, White Star, CP‐386 and FBD Rawan varieties, respectively) was found between the percent inhibition of ABTS radical cation and the amount of vegetable oils. The percent inhibition of the Fe(II)‐Ferrozine complex formation was found to be 29.45, 53.76, 82.91, 86.59 and 57.87 for the same varieties, respectively.
Originality/value
GC‐MS and standard in vitro antioxidative capacity analyses data clearly demonstrated the potency of the cowpea as antioxidant and radical scavenger plant which may be used as a good source of natural antioxidants. The plant seeds may prove a better and cost‐effective substitute of expensive food items.
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Padma S. Vankar and Afreen Begum
Replacing conventional mordants by benign mordants, rare earth (RE) salts have been used in the process of natural dyeing with annatto seed extract. The purpose was threefold …
Abstract
Purpose
Replacing conventional mordants by benign mordants, rare earth (RE) salts have been used in the process of natural dyeing with annatto seed extract. The purpose was threefold – first, to increase the dye uptake through these new mordants; second, to have better fastness properties of dyed swatches and third, to have lesser effluent pollution, as the new RE mordants are used in one-tenth quantities only.
Design/methodology/approach
Sustainable natural dyeing was attained by using RE salts as mordant in one-tenth quantity, for natural dyeing, replacing the conventional mordants such as alum and ferrous sulphate. Annatto extract has been used as natural dye.
Findings
Through the study, it was inferred that the natural dyeing using annatto seed extract gives very good colour depth on the dyed swatches and also shows marked improvement in fastness properties.
Research limitations/implications
Research implication is that often it is expected that any new chemical used in the textile processing adds on to the effluent load; however, contrary to that, this study found that the use of RE salt is very beneficial as it is used in smaller quantities, but gives far better dyeing results.
Practical implications
RE salts can be used in natural dyeing without causing any harm to the environment and dyers.
Social implications
Use of RE salts in natural dyeing is a new concept. It is a very safe technology and can be used without causing any harm to the environment and the dyers.
Originality/value
This study is unique as it focuses on the use of RE salts in natural dyeing replacing the conventional mordants, which are used ten times more in quantity.
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The cleaning and reconditioning of internal combustion engines is a major operation. This is due to the nature of the soils which have to be removed, these ranging through oil…
Abstract
The cleaning and reconditioning of internal combustion engines is a major operation. This is due to the nature of the soils which have to be removed, these ranging through oil sludges, gums and resins to baked‐on carbonaceous deposits which are sometimes as hard and thick as cement crusts. In addition, there are road soils, lead oxides resulting from the decomposition of leaded fuels, and the ever‐present bogy of rust.