Vitamin D3 supplementation ameliorates ovariectomy-induced cardiac apoptotic and structural changes in adult albino rats

2019 ◽  
Vol 97 (7) ◽  
pp. 647-654 ◽  
Author(s):  
Nourelhuda A. Mohammed ◽  
Nanees F. El-Malkey ◽  
Amal Al-shahat Ibrahim ◽  
Doaa M. Abdullah

The effect of vitamin D on cardiac dysfunction after menopause is still under investigation. Therefore, we investigated the effect of vitamin D3 on cardiac apoptotic and structural changes in ovariectomized rats. Forty adult female albino rats were divided into 4 equal groups: sham rats, sham rats treated with vitamin D3, ovariectomized rats, and ovariectomized rats treated with vitamin D3 (500 IU/kg per day for 6 weeks, orally). Body mass, blood pressure, heart rate, and whole heart mass (WHM) were measured. Serum soluble receptors of advanced glycation end products (sRAGE), C-reactive protein, malondialdehyde, and total antioxidant capacity were estimated. Cardiac sections were stained with haematoxylin–eosin and Masson’s trichrome stain. Fas and FasL apoptosis-related proteins were detected by immunohistochemistry. Vitamin D3 treatment significantly decreased ovariectomy-induced cardiac Fas and FasL apoptosis-related proteins, whole heart mass, body mass, C-reactive protein, and malondialdehyde accompanied by decreased inflammation and reduced collagen deposition between cardiac muscle fibres. However, vitamin D3 significantly increased total antioxidant capacity and sRAGE in ovariectomized and sham treated groups. Our findings suggest that vitamin D3 treatment can prevent ovariectomy-induced cardiac structural and apoptotic changes in rats via increasing sRAGE and antioxidant activity. Our results suggest that vitamin D3 has therapeutic effect against postmenopausal cardiovascular disease.

2018 ◽  
Vol 29 (11) ◽  
pp. 1089-1097 ◽  
Author(s):  
M Duro ◽  
MC Manso ◽  
S Barreira ◽  
I Rebelo ◽  
R Medeiros ◽  
...  

The objective of this study was to investigate the factors underlying the development of metabolic syndrome (MetS) in HIV-infected patients. Two hundred and sixty-six clinical cases were selected for a retrospective study. The sample was classified using the Adult Treatment Panel III guidelines and the identification of risk or protective factors associated with MetS evaluated via multivariate logistic or multinomial regressions. HIV-infected individuals diagnosed with MetS tend to be older, overweight, or obese (85% have a BMI ≥ 25), with a waist circumference > 90 cm (96.5 [88.8–105.5] cm, median [interquartile range]). Blood testing these individuals revealed high fasting levels of insulin (8.1 [5.8–21.6] pg/ml), glucose (98.0 [84.0–116.0] mg/dl), triglycerides (201.0 [142.0–267.3] mg/dl), and high-density lipoprotein cholesterol (36.5 [29.8–43.3] mg/dl) in addition with higher levels of inflammatory mediators such as high-sensitivity C-reactive protein (2.5 [1.0–4.9] mg/dl) and interleukin-6 (3.4 [2.8–3.8] pg/ml). The likelihood of HIV-infected individuals who are virally suppressed developing MetS is about 60% higher than those with acute infection. Treatment with nucleoside reverse transcriptase inhibitors (NRTIs) and protease inhibitors (PIs) increases the chance of developing MetS by around 2.4 times. Individuals with a lower antioxidant capacity (total antioxidant status [TAS] <1.33) have a 2.6 times higher risk of developing MetS. HIV-related chronic inflammation, a low TAS, and treatment with NRTIs in association with PIs are additional MetS risk factors.


2020 ◽  
Vol 36 (7) ◽  
pp. 477-486
Author(s):  
Wale Johnson Adeyemi ◽  
Tahir Ahmad Abdussalam ◽  
Amin Abdulrahim ◽  
Luqman Aribidesi Olayaki

Melatonin (Mel) is known to prevent and mitigate lead (Pb)-induced gonadotoxicity. However, there is no report in literature on the endogenous levels of different biomarkers after the cessation of Pb exposure, with or without treatment with Mel. Fifty adult male Wistar rats were divided into five groups ( N = 10), which included control ((vehicle (normal saline) - treated) − 0.1 ml/day); lead chloride (PbCl2) untreated (3 weeks vehicle + 3 weeks Pb); Pb recovery (3 weeks Pb + 3 weeks vehicle); Pb + Mel (3 weeks Pb + 3 weeks Mel); and Mel (3 weeks vehicle + 3 weeks Mel) groups. Pb and Mel were administered at 50 and 10 mg/kg B.W. ( p.o.), respectively. The results showed that Pb caused significant decreases in total bilirubin (TB), phospholipids (PLP), superoxide dismutase (SOD), catalase (CAT), and total antioxidant capacity (TAC), but significant elevations in alkaline phosphatase (ALP), aspartate aminotransferase (AST), triglyceride (TG), and malondialdehyde (MDA). Although the adverse effects of Pb on TB, ALP, AST, SOD, MDA, and TAC were sustained after the cessation of exposure, a reversal was observed in total cholesterol (TC), TG, PLP, CAT, and c-reactive protein (CRP) results. Nevertheless, the detrimental effects of Pb on alanine aminotransferase (ALT), albumin, and globulin were only expressed post-exposure. Treatment with Mel caused no significant effect on TB and albumin levels. However, unlike TAC and CRP, the hormone significantly reduced ALP, AST, ALT, TC, low-density lipoprotein cholesterol, PLP, SOD, CAT, MDA, and globulin to levels comparable to the control group. In conclusion, following the cessation of Pb exposure, alterations in physiological balance could be elevated, sustained, or reversible. However, Mel enhanced the reestablishment homeostatic status after Pb administration.


2020 ◽  
Vol 2020 ◽  
pp. 1-7 ◽  
Author(s):  
Nour Elkhair Ali ◽  
Lamis AbdelGadir Kaddam ◽  
Suad Yousif Alkarib ◽  
Babikir Gabir Kaballo ◽  
Sami Ahmed Khalid ◽  
...  

Background. Oxidative processes might increase in patients with end-stage renal disease (ESRD) according to the current literature. Oxidative stress (OS) is a risk factor of atherosclerosis and cardiovascular complications, which are major causes of mortality among ESRD patients. Haemodialysis (HD) is life-saving procedure, nevertheless it is an active chronic inflammatory status that could augment cardiovascular disease and increase mortality. Gum Arabic (GA) has been claimed to act as an antioxidant and anti-inflammatory agent in experimental studies and clinical trials. Therefore, we assumed GA supplementation among haemodialysis patients would reduce oxidative stress and consequently reduce the state of chronic inflammatory activation associated with haemodialysis. Methods. Forty end-stage renal failure (ESRF) patients aged 18–80 years who were on regular haemodialysis in Arif Renal Center, Omdurman, Sudan, were recruited. All recruited patients met the inclusion criteria and signed informed consent prior to enrolment. The patients received 30 g/day of GA for 12 weeks. C-reactive protein (CRP) and complete blood count (CBC) were measured as baseline and monthly. Total antioxidant capacity (TAC) and oxidative stress marker malondialdehyde (MDA) levels were measured before and after GA intake. Ethical approval from the National Medicines and Poisons Board was obtained. Results. Gum Arabic significantly augmented total antioxidant capacity level (P<0.001) (95% CI, 0.408–0.625) and also attenuated oxidative marker MDA and C-reactive protein (P<0.001). Conclusions. GA has revealed potent antioxidative and anti-inflammatory properties in haemodialysis patients. Oral digestion of GA (30 g/day) decreased oxidative stress and inflammatory markers among haemodialysis patients. Trial registration. ClinicalTrials.gov Identifier: NCT03214692, registered 11 July 2017 (prospective registration).


2020 ◽  
Vol 245 (15) ◽  
pp. 1326-1334
Author(s):  
Mohamed M Elseweidy ◽  
Sousou I Aly ◽  
Sally K Hammad ◽  
Noura I Shershir

Hyperlipidemia represents a major risk factor for cardiovascular diseases leading to myocardial injury. The present study aimed to illustrate the myocardial injury induced in a diabetic hyperlipidemic rat model and the effect of vitamin D3, 10-DHGD intake either individually or in combination form. Male albino rats were selected for the study, received alloxan, hypercholesterolemic diet, and categorized into four groups. The first one (DHC), received hypercholesterolemic diet only and referred to as control. The remaining groups (2, 3, 4) received vitamin D3, 10-DHGD, and combination of both, respectively. Certain biomarkers that were selected for MI evaluation included blood glucose, lipogram pattern, Copeptin, C-reactive protein, myeloperoxidase, heart fatty acid-binding protein, and histopathological changes in myocardium and aorta. Vitamin D3 and 10-DHGD intake induced significant hypoglycemic, hypolipidemic effects, decreased inflammation, and MI biomarkers. Decreased myocardial vacuoles, foam cells, and intimal lesions were also observed compared to DHC. Their combination intake induced more marked reduction in all biomarkers and showed a histopathological pattern similar to normal features of myocardium and aorta. Our findings suggest the therapeutic roles of vitamin D3, 10-DHGD, and their combination against myocardial injury in diabetic hyperlipidemic rats. Impact statement Hyperlipidemia represents a major risk factor for cardiovascular diseases leading to myocardial injury (MI). The present study aimed to illustrate the pattern of myocardial injury induced in diabetic hyperlipidemic rat model and the effect of vitamin D3, 10-dehydrogingerdione (10-DHGD) intake either individually or in combination form.


2000 ◽  
Vol 49 (1-2) ◽  
pp. 70 ◽  
Author(s):  
J. Hellwage ◽  
H. Jarva ◽  
P.F. Zipfel ◽  
S. Meri

2016 ◽  
Vol 94 (7) ◽  
pp. 497-503 ◽  
Author(s):  
A. F. Verbovoy ◽  
Lyudmila A. Sharonova ◽  
O. V. Kosareva ◽  
N. I. Verbovaya ◽  
Yu. A. Dolgikh

The article presents data on the relationship between thyroid dysfunction and cardiovascular diseases. The role of dyslipidemia, adipokines (adiponectin, leptin, resistin), C-reactive protein, deficiency of vitamin D3 in the development of cardiovascular disease in hypothyroidism is discussed. The article describes characteristics of myocardial remodeling, its dysfunction and their correlation with risk factors of cardiovascular diseases in patients with hypothyroidism.


1982 ◽  
Vol 389 (1 C-Reactive Pr) ◽  
pp. 49-75 ◽  
Author(s):  
M. L. Baltz ◽  
F. C. de Beer ◽  
A. Feinstein ◽  
E. A. Munn ◽  
C. P. Milstein ◽  
...  

Author(s):  
VENKATESH KM ◽  
SRIRAM BS ◽  
RAVICHANDRA V ◽  
RAJENDRA HOLLA

Objectives: The objectives of this study were to evaluate the effects of telmisartan on plasma interleukin (IL)-6 and C-reactive protein (CRP) levels in monosodium glutamate (MSG)-induced obesity in Wistar albino rats. Methods: MSG at the dose of 500 mg/kg body weight is dissolved in distilled water and administered for 22 days. On the 9th day, telmisartan 7.5 mg/kg body weight is administered. After completion of experiment, body weight and biochemical parameters such as plasma IL-6 and CRP levels are measured using enzyme-linked immunosorbent assay. Results: Telmisartan significantly decreased plasma IL-6 and CRP levels in MSG-treated obese rats. Conclusion: Telmisartan, probably through its peroxisome proliferator-activated receptor-γ agonistic activity, produces significant anti-obesity effects in rats and may help in treating obese patients with metabolic syndrome.


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