BACKGROUND Diabetes is known damage the liver and kidney,leading to hepatic dysfunction and kidney failure.Honey is believed to help in lowering the blood glucose levels of diabetic patients and reducing diabetic comp...BACKGROUND Diabetes is known damage the liver and kidney,leading to hepatic dysfunction and kidney failure.Honey is believed to help in lowering the blood glucose levels of diabetic patients and reducing diabetic complications.However,the effect of stingless bee honey(SBH)administration in relieving liver and kidney damage in diabetes has not been well-studied.AIM To investigate the effect of SBH administration on the kidney and liver of streptozotocin-induced(STZ;55 mg/kg)diabetic Sprague Dawley rats.METHODS The rats were grouped as follows(n=6 per group):non-diabetic(ND),untreated diabetic(UNT),metformin-treated(MET),and SBH+metformin-treated(SBME)groups.After successful diabetic induction,ND and UNT rats were given normal saline,whereas the treatment groups received SBH(2.0 g/kg and/or metformin(250 mg/kg)for 12 d.Serum biochemical parameters and histological changes using hematoxylin and eosin(H&E)and periodic acid–Schiff(PAS)staining were evaluated.RESULTS On H&E and PAS staining,the ND group showed normal architecture and cellularity of Bowman’s capsule and tubules,whereas the UNT and MET groups had an increased glomerular cellularity and thickened basement membrane.The SBH-treated group showed a decrease in hydropic changes and mild cellularity of the glomerulus vs the ND group based on H&E staining,but the two were similar on PAS staining.Likewise,the SBME-treated group had an increase in cellularity of the glomerulus on H&E staining,but it was comparable to the SBH and ND groups on PAS staining.UNT diabetic rats had tubular hydropic tubules,which were smaller than other groups.Reduced fatty vacuole formation and dilated blood sinusoids in liver tissue were seen in the SBH group.Conversely,the UNT group had high glucose levels,which subsequently increased MDA levels,ultimately leading to liver damage.SBH treatment reduced this damage,as evidenced by having the lowest fasting glucose,serum alanine transaminase,aspartate transaminase,and alkaline phosphatase levels compared to other groups,although the levels of liver enzymes were not statistically significant.CONCLUSION The cellularity of the Bowman’s capsule,as well as histological alteration of kidney tubules,glomerular membranes,and liver tissues in diabetic rats after oral SBH resembled those of ND rats.Therefore,SBH exhibited a protective hepatorenal effect in a diabetic rat model.展开更多
There is growing evidence that diabetes can induce cognitive decline and dementia.It is a slow,progressive cognitive decline that can occur in any age group,but is seen more frequently in older individuals.Symptoms re...There is growing evidence that diabetes can induce cognitive decline and dementia.It is a slow,progressive cognitive decline that can occur in any age group,but is seen more frequently in older individuals.Symptoms related to cognitive decline are worsened by chronic metabolic syndrome.Animal models are frequently utilized to elucidate the mechanisms of cognitive decline in diabetes and to assess potential drugs for therapy and prevention.This review addresses the common factors and pathophysiology involved in diabetes-related cognitive decline and outlines the various animal models used to study this condition.展开更多
Humans have long used natural remedies like plants and herbs to treat disease.Furthermore,research has been ongoing to find alternative pharmaceutical drugs based on traditionally used plants,as natural products show ...Humans have long used natural remedies like plants and herbs to treat disease.Furthermore,research has been ongoing to find alternative pharmaceutical drugs based on traditionally used plants,as natural products show fewer side effects compared to synthetic drugs.Medicinal plants have long been targeted in drug development due to their bioactive compounds like alkaloids,flavonoids,and terpenoids.This is not only the case for terrestrial plants,but marine environments also provide a larger diversity of flora and fauna with medicinal bioactive compounds.Vitex rotundifolia,also known as Beach Vitex,is a coastal plant that has been traditionally used to treat a variety of diseases including premenstrual syndrome,headaches,migraines,colds,and eye pain.There have been many review papers on V.rotundifolia,emphasizing its taxonomy,distribution,and biological activity.Our current mini-review not only summarizes the pharmacology and bioactivity of V.rotundifolia,but it also provides new information on the main bioactive compounds of V.rotundifolia such as flavonoids,phenolic acid,and terpenes and their current pharmacological activity in vitro and in vivo research.This information can be useful for developing new pharmaceutical and nutraceutical agents to treat and manage disease.展开更多
Background:An increasing number of valid and well-designed trials have demonstrated a positive correlation between visit-to-visit variability(VVV)in systolic blood pressure(SBP)and increased risk of stroke and coronar...Background:An increasing number of valid and well-designed trials have demonstrated a positive correlation between visit-to-visit variability(VVV)in systolic blood pressure(SBP)and increased risk of stroke and coronary heart disease among hypertensive patients.Methods:A cross-sectional study was conducted that involved 74 patients who visited the outpatient clinic at the Tabanan III Primary Health Care Service during April to May 2017.Blood pressure was retrospectively obtained from medical records.VVV was classified as low or high on the basis of the standard deviation of SBP.Antihypertensive medication adherence was expressed as the percentage of days covered,and sodium intake was measured with 24-hour food recall.Bi-variate analysis was performed,followed by multivariate analysis for significant variables.Results:Among the participants,67.6%were female,with a mean(standard deviation[SD])age of 62.70(10.00)years.Blood pressure was measured 4.82±0.78 times during the period,and the mean(SD)SBP was 139.65(10.57)mm Hg.Nonadherence and sodium intake were signifi-cantly higher in the high-VVV group than in the low-VVV group(nonadherence 13.5%vs.37.8%,P=0.033;sodium intake 1278.44±43.02 mg vs.1495.85±45.26 mg,P=0.038).After adjustment for other covariates,the differences remained significant only for nonadherence(model I exp β=3.89[95.0%confidence interval 1.23-12.34,P<0.05],model II expβ=3.9[95.0%confidence interval 1.12-14.15,P<0.05]).The area under the curve was 0.636(P<0.05),with sensitivity of 67.6%and specificity of 51.4%.Conclusion:Nonadherence to antihypertensive medication was significantly associated with higher VVV of SBP.Further study is needed to assess whether improving adherence could reduce VVV and improve cardiovascular outcomes.展开更多
基金Ministry of Higher Education,Malaysia for Fundamental Research Grant Scheme FRGS/1/2019/SKK06/USM/03/6,No.291983-329281.
文摘BACKGROUND Diabetes is known damage the liver and kidney,leading to hepatic dysfunction and kidney failure.Honey is believed to help in lowering the blood glucose levels of diabetic patients and reducing diabetic complications.However,the effect of stingless bee honey(SBH)administration in relieving liver and kidney damage in diabetes has not been well-studied.AIM To investigate the effect of SBH administration on the kidney and liver of streptozotocin-induced(STZ;55 mg/kg)diabetic Sprague Dawley rats.METHODS The rats were grouped as follows(n=6 per group):non-diabetic(ND),untreated diabetic(UNT),metformin-treated(MET),and SBH+metformin-treated(SBME)groups.After successful diabetic induction,ND and UNT rats were given normal saline,whereas the treatment groups received SBH(2.0 g/kg and/or metformin(250 mg/kg)for 12 d.Serum biochemical parameters and histological changes using hematoxylin and eosin(H&E)and periodic acid–Schiff(PAS)staining were evaluated.RESULTS On H&E and PAS staining,the ND group showed normal architecture and cellularity of Bowman’s capsule and tubules,whereas the UNT and MET groups had an increased glomerular cellularity and thickened basement membrane.The SBH-treated group showed a decrease in hydropic changes and mild cellularity of the glomerulus vs the ND group based on H&E staining,but the two were similar on PAS staining.Likewise,the SBME-treated group had an increase in cellularity of the glomerulus on H&E staining,but it was comparable to the SBH and ND groups on PAS staining.UNT diabetic rats had tubular hydropic tubules,which were smaller than other groups.Reduced fatty vacuole formation and dilated blood sinusoids in liver tissue were seen in the SBH group.Conversely,the UNT group had high glucose levels,which subsequently increased MDA levels,ultimately leading to liver damage.SBH treatment reduced this damage,as evidenced by having the lowest fasting glucose,serum alanine transaminase,aspartate transaminase,and alkaline phosphatase levels compared to other groups,although the levels of liver enzymes were not statistically significant.CONCLUSION The cellularity of the Bowman’s capsule,as well as histological alteration of kidney tubules,glomerular membranes,and liver tissues in diabetic rats after oral SBH resembled those of ND rats.Therefore,SBH exhibited a protective hepatorenal effect in a diabetic rat model.
基金Supported by the Fundamental Research Grant Scheme(FRGS)Ministry of Higher Education Malaysia,No.FRGS/1/2020/SKK0/USM/03/5.
文摘There is growing evidence that diabetes can induce cognitive decline and dementia.It is a slow,progressive cognitive decline that can occur in any age group,but is seen more frequently in older individuals.Symptoms related to cognitive decline are worsened by chronic metabolic syndrome.Animal models are frequently utilized to elucidate the mechanisms of cognitive decline in diabetes and to assess potential drugs for therapy and prevention.This review addresses the common factors and pathophysiology involved in diabetes-related cognitive decline and outlines the various animal models used to study this condition.
基金Author would like to thank School of Health Sciences,Universiti Sains Malaysia and Universiti Malaysia Terengganu for providing the facilities to support this projectThis project is fully supported by Fundamental Research Grant Scheme Vot No.59479 from Ministry of Higher Education Malaysia.
文摘Humans have long used natural remedies like plants and herbs to treat disease.Furthermore,research has been ongoing to find alternative pharmaceutical drugs based on traditionally used plants,as natural products show fewer side effects compared to synthetic drugs.Medicinal plants have long been targeted in drug development due to their bioactive compounds like alkaloids,flavonoids,and terpenoids.This is not only the case for terrestrial plants,but marine environments also provide a larger diversity of flora and fauna with medicinal bioactive compounds.Vitex rotundifolia,also known as Beach Vitex,is a coastal plant that has been traditionally used to treat a variety of diseases including premenstrual syndrome,headaches,migraines,colds,and eye pain.There have been many review papers on V.rotundifolia,emphasizing its taxonomy,distribution,and biological activity.Our current mini-review not only summarizes the pharmacology and bioactivity of V.rotundifolia,but it also provides new information on the main bioactive compounds of V.rotundifolia such as flavonoids,phenolic acid,and terpenes and their current pharmacological activity in vitro and in vivo research.This information can be useful for developing new pharmaceutical and nutraceutical agents to treat and manage disease.
文摘Background:An increasing number of valid and well-designed trials have demonstrated a positive correlation between visit-to-visit variability(VVV)in systolic blood pressure(SBP)and increased risk of stroke and coronary heart disease among hypertensive patients.Methods:A cross-sectional study was conducted that involved 74 patients who visited the outpatient clinic at the Tabanan III Primary Health Care Service during April to May 2017.Blood pressure was retrospectively obtained from medical records.VVV was classified as low or high on the basis of the standard deviation of SBP.Antihypertensive medication adherence was expressed as the percentage of days covered,and sodium intake was measured with 24-hour food recall.Bi-variate analysis was performed,followed by multivariate analysis for significant variables.Results:Among the participants,67.6%were female,with a mean(standard deviation[SD])age of 62.70(10.00)years.Blood pressure was measured 4.82±0.78 times during the period,and the mean(SD)SBP was 139.65(10.57)mm Hg.Nonadherence and sodium intake were signifi-cantly higher in the high-VVV group than in the low-VVV group(nonadherence 13.5%vs.37.8%,P=0.033;sodium intake 1278.44±43.02 mg vs.1495.85±45.26 mg,P=0.038).After adjustment for other covariates,the differences remained significant only for nonadherence(model I exp β=3.89[95.0%confidence interval 1.23-12.34,P<0.05],model II expβ=3.9[95.0%confidence interval 1.12-14.15,P<0.05]).The area under the curve was 0.636(P<0.05),with sensitivity of 67.6%and specificity of 51.4%.Conclusion:Nonadherence to antihypertensive medication was significantly associated with higher VVV of SBP.Further study is needed to assess whether improving adherence could reduce VVV and improve cardiovascular outcomes.
