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1.
BMC Res Notes ; 8: 796, 2015 Dec 17.
Article in English | MEDLINE | ID: mdl-26680759

ABSTRACT

BACKGROUND: Star fruit (Averrhoa carambola) is commonly consumed as a herbal remedy for various ailments in tropical countries. However, the dangers associated with consumption of star fruit are not commonly known. Although star fruit induced oxalate nephrotoxicity in those with existing renal impairment is well documented, reports on its effect on those with normal renal function are infrequent. We report two unique clinical presentation patterns of star fruit nephrotoxicity following consumption of the fruit as a remedy for diabetes mellitus-the first, in a patient with normal renal function and the second case which we believe is the first reported case of chronic kidney disease (CKD) due to prolonged and excessive consumption of star fruits. CASE PRESENTATION: The first patient is a 56-year-old female diabetic patient who had normal renal function prior to developing acute kidney injury (AKI) after consuming large amount of star fruit juice at once. The second patient, a 60-year-old male, also diabetic presented with acute on chronic renal failure following ingestion of a significant number of star fruits in a short duration with a background history of regular star fruit consumption over the past 2-3 years. Both had histologically confirmed oxalate induced renal injury. The former had histological features of acute tubulo-interstitial disease whilst the latter had acute-on-chronic interstitial disease; neither had histological evidence of diabetic nephropathy. Both recovered over 2 weeks without the need for haemodialysis. CONCLUSION: These cases illustrate the importance of obtaining the patient's detailed history with respect to ingestion of herbs, traditional medication and health foods such as star fruits especially in AKI or CKD of unknown cause.


Subject(s)
Acute Kidney Injury/chemically induced , Averrhoa/adverse effects , Fruit/adverse effects , Oxalates/adverse effects , Renal Insufficiency, Chronic/chemically induced , Female , Humans , Male , Middle Aged
2.
BMC Infect Dis ; 14: 141, 2014 Mar 14.
Article in English | MEDLINE | ID: mdl-24628767

ABSTRACT

BACKGROUND: Dengue infection carries a potential risk of death despite stringent management of plasma leak and haemorrhage. It appears that the extent of liver dysfunction determines the outcome. METHODS: We present a postmortem study of five patients, died of dengue shock syndrome who had markedly elevated liver enzymes and irreparable circulatory failure. RESULTS: All were females with a median age of 46 years (range 20-50 years). All had positive NS1 and IgM. Clinically, one patient developed severe degree of hepatic encephalopathy whilst three patients developed uncontrollable bleeding manifestations. Dengue virus was detected in three liver specimens by reverse transcription PCR. Histology of the liver revealed massive necrosis with haemorrhages in these patients with evidence of micro and macrovesicular steatosis with significant periportal inflammatory infiltrate. No significant ischaemic changes or necrosis was observed in the other organs. CONCLUSIONS: Severe haemorrhagic necrosis of the liver was the cause of death in these patients probably due to direct viral infection. Predilection for severe liver disease remains unknown. Therefore, it is prudent to think beyond plasma leak as the main pathology of dengue infection and attempts should be made to develop other treatment modalities to prevent and manage unforeseen fatal complications of dengue infection.


Subject(s)
Liver Failure/pathology , Liver Failure/virology , Severe Dengue/pathology , Adult , Autopsy , Dengue Virus/genetics , Dengue Virus/isolation & purification , Fatal Outcome , Female , Humans , Middle Aged , Necrosis/virology , Young Adult
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