Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0021051 (immunodeficiency)
 71,517 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Renal alterations characterized morphologically by glomerular and tubulo-interstitial lesions and clinically by a heavy proteinuria and sometimes by renal failure are frequent in feline immunodeficiency virus (FIV) infected cats. To investigate the possible role of local FIV replication in the genesis of this renal damage, renal tissues of 15 consecutive naturally infected and five non-infected cats were examined for traces of the virus by immunohistochemistry, using a monoclonal anti-p24 antibody in a streptavidin-biotin peroxidase labeled system, cultivation and polymerase chain reaction (PCR). Tubular epithelial cells as well as scattered interstitial inflammatory and glomerular cells were positive for p24 antigen in 13 cats. Viral isolation was successful in seven cats, and FIV gag DNA and RNA sequences were detected in 14 and five cats, respectively. Control cats were constantly negative. Although not conclusive, these results suggest that a direct role of FIV in the induction of the renal damage observed in infected animals is possible.
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PMID:Renal involvement in feline immunodeficiency virus infection: p24 antigen detection, virus isolation and PCR analysis. 761 53

The efficacy and toxicity of a single versus double gentamicin dose were compared. Fifty-four ill patients with infection susceptible to gentamicin in Department of Internal Medicine, University Hospital Rebro, Zagreb, were included in this study. The following criteria excluded patients from the study: serious renal failure (creatinine > 250 mumol/l), hearing impairment, condition and immunodeficiency. Patients were randomised to receive either gentamicin 4 mg/kg by infusion over a 30 minute period once daily, a single-dose group (SG) (N = 25), or gentamicin 2 mg/kg intravenously twice daily, a double-dose group (DG) (N = 29). Almost all patients in a single-dose group achieved peak therapeutic concentrations, while trough gentamicin concentrations were below the recommended. In a double-dose group, only 70.5% of the patients obtained peak concentrations, and 7.5% of the patients had inadequately high trough gentamicin concentrations. In a single-dose group, there were no changes in serum creatinine values, while in a double-dose group there was a significant increase in serum creatinine concentration and a decrease in serum creatinine clearance. Risk factors for gentamicin nephrotoxicity were: through gentamicin concentration, older age and initial abnormal renal function. Ototoxic reaction developed in 35% of the patients on a single gentamicin dose and in 44.8% of the patients on a double dose (P > 0.05), and a lesion was more diffuse in this group. Risk factors for gentamicin ototoxicity were: through gentamicin concentration, duration of therapy, older age and abnormal renal function. Therapeutic effect was observed in 96% of the patients in SG and in 86.2% of the patients in DG (P > 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Effectiveness and adverse effects of a single daily dose of gentamicin versus twice daily administration]. 765 Oct 68

Human immunodeficiency virus-associated nephropathy (HI-VAN) is a common form of nephropathy present in HIV-infected individuals that clinically presents with proteinuria that is frequently in the nephrotic range, less often with hematuria, and with a course that may evolve to irreversible azotemia ultimately resulting in renal failure. Pediatric and adult HIV-positive patients both experience HIVAN morphologically after displaying focal segmental glomerulosclerosis, diffuse mesangial hyperplasia, microcystic tubular dilatation, interstitial inflammation, edema, and fibrosis. There is minimal information regarding the interstitial inflammatory cell infiltrate, despite the possibility that these cells may play an important role in the etiology of HIVAN. This study was designed to characterize and compare several morphological and immunopathological features of clearly established HIVAN, particularly the hematopoietic cell markers present on the interstitial inflammatory cells and the state of T-lymphocyte activation (ie, class II expression). Quantitative grading of HIVAN kidneys showed that CD4-positive and CD8-positive T cells comprised the major cell populations in the interstitium, often with CD4-positive T cells exceeding or being equivalent in number to CD8-positive T cells. B cells and macrophages were negligible components of the infiltrate. Human leukocyte antigen-DR class II molecules were found to be increased on the interstitial T cells as well as on all glomerular cells and endothelial cells. There was no significant relationship established between the immunophenotype of the interstitial inflammatory cells and other morphological, ultrastructural, immunofluorescent, or clinical features. These data imply that the inflammatory infiltrate in HIVAN is largely composed of activated T cells. At this point the role of these interstitial T cells in HIVAN is undetermined, although it can be speculated that they may be participating as antiviral or autoreactive immune effector cells imparting renal injury in this entity.
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PMID:Immunopathological characteristics of in situ T-cell subpopulations in human immunodeficiency virus-associated nephropathy. 770 20

The superimposition of human immunodeficiency virus (HIV) infection, associated opportunistic infections, and anti-retroviral therapy further worsens the severity of anemia in patients also suffering from end-stage renal disease. A major cause of anemia in renal failure is a deficiency of erythropoietin. The causes of anemia in HIV disease include direct and indirect stem cell inhibition by the virus, increased peripheral destruction of red blood cells, and bone marrow suppression by various opportunistic infections and therapeutic drugs, particularly zidovudine. We compared the efficacy of recombinant human erythropoietin (rHuEPO) therapy in improving the anemia in HIV-infected end-stage renal disease patients (group I) with that in nondiabetic (group II) and diabetic (group III) hemodialysis patients without HIV infection. All three groups of patients were comparable in dialysis prescription and serum iron studies. Iron supplementation was prescribed to all patients, and none received blood transfusions. After 8 weeks of rHuEPO therapy (administered intravenously in a dose of 100 U/kg body weight thrice weekly), the mean increase in hematocrit was similar in all responders (5.8% increase in hematocrit in 23 of 30 HIV patients and 6.7% increase in 24 of 30 non-HIV patients). Response in hematocrit was noted in HIV patients despite the presence of opportunistic infections in 15 and zidovudine administration in 11. Seven HIV-positive patients and six non-HIV patients failed to respond to rHuEPO. Irrespective of the HIV status, the baseline serum EPO levels in patients responding to rHuEPO were significantly lower than those in nonresponders.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:The efficacy of erythropoietin in human immunodeficiency virus-infected end-stage renal disease patients treated by maintenance hemodialysis. 777 87

By using ELISA and assay of MTT participating in IL-6 dependent cell clone. The authors measured the circulating levels of soluble IL-2 receptor (sIL-2R) and IL-6 in patients undergoing hemodialysis (HD). Alterations of the above-mentioned parameters before and after a three-month course of treatment with Chinese drug Epimedium sagittatum on the same HD patients. It is confirmed that in patients with end-stage renal failure (ESRF), sIL-2R level elevated significantly, while IL-6 level decreased apparently (P < 0.01). Furthermore, levels of both sIL-2R and IL-6 could be restored to normal after treatment with Epimedium sagittatum. These findings indicated not only the presence of immunodeficiency in ESRF, but also the effectiveness of regulation with Chinese drug Epimedium sagittatum.
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PMID:[Effect of epimedium sagittatum on soluble IL-2 receptor and IL-6 levels in patients undergoing hemodialysis]. 779 53

Patients with end-stage renal disease present an immunodeficiency that paradoxically coexists with activation of most immunocompetent cells, and the roles of chronic uremia and maintenance dialysis are poorly understood. We determined circulating levels of IL-1 beta and IL-1Ra, TNF-alpha and its soluble receptors (TNF-sR55 and TNF-sR75), and activation markers of T cells (soluble CD25), B cells (soluble CD23), and monocytes (neopterin) in a large cohort of undialyzed patients at various stages of chronic renal failure and in dialyzed patients on maintenance hemodialysis or chronic peritoneal dialysis. The progression of uremia was associated with a gradual increase in soluble CD25, CD23, and especially neopterin levels. Although IL-1 beta could not be detected, IL-1Ra levels were significantly increased from the earliest stage of renal failure. Plasma levels of TNF-alpha, TNF-sR55, and TNF-sR75 progressed with the severity of renal failure and correlated with soluble CD25, CD23, and neopterin levels, whereas IL-1Ra levels correlated exclusively with TNF-sR55 levels. Compared with undialyzed patients, levels of IL-1 beta were higher in patients on maintenance hemodialysis, whereas those of IL-1Ra were lower and decreased further at the end of dialysis sessions. In contrast, both TNF-sR55 and TNF-sR75 levels were significantly higher than in undialyzed patients and increased further at the end of dialysis sessions in the absence of an increase of TNF-alpha. Such an imbalance between cytokines and their inhibitors may play a pivotal role in the multifaceted process of immune dysfunction.
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PMID:Balance between IL-1 beta, TNF-alpha, and their specific inhibitors in chronic renal failure and maintenance dialysis. Relationships with activation markers of T cells, B cells, and monocytes. 781 91

Seizures are a recognized complication of human immunodeficiency virus (HIV)-type-1 infection. CNS disease processes in these patients include encephalitis, focal brain lesions, and meningitis. Metabolic causes of seizures have received little attention. In a retrospective study, we selected 68 HIV-seropositive patients with new-onset seizures and information available for specified metabolic factors on the day of the first seizure. We sought an association of metabolic abnormalities with convulsive status epilepticus (CSE), which was the initial seizure in 12 patients, predominantly intravenous (i.v.) drug users. HIV-seropositive patients with new-onset seizures and hypomagnesemia or renal failure appeared to be at increased risk for CSE. All HIV-seropositive patients with new-onset seizures should undergo metabolic screening including renal function and serum magnesium levels.
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PMID:Metabolic abnormalities and new-onset seizures in human immunodeficiency virus-seropositive patients. 782 Dec 71

The case of a renal transplant recipient with a known history of iv drug abuse but unknown human immunodeficiency virus (HIV) status who presents after having a stable renal allograft function for 4 yr, with acute/subacute advanced renal failure, nephrotic syndrome, and hypertension, as well as clinical and histologic findings of thrombotic microangiopathy, is reported. He was subsequently found to have a positive serology for HIV-1 with a low CD4 count but no clinical manifestations of the acquired immunodeficiency syndrome. He was treated conservatively with zidovudine (AZT). The patient never regained graft function and was ultimately discharged from the hospital on maintenance dialytic therapy. This is, to our knowledge, the first report of thrombotic microangiopathy in an HIV-1-infected patient presenting late in the course as acute/subacute renal allograft failure.
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PMID:Late renal allograft failure secondary to thrombotic microangiopathy-human immunodeficiency virus nephropathy. 801 72

The most common chronic nephropathy seen with human immunodeficiency virus (HIV) infection is characterized by heavy proteinuria and rapid deterioration of renal function. We here report the findings in an HIV-seropositive patient with nephrotic-range proteinuria and biopsy-proven HIV-associated nephropathy treated with the angiotensin-converting enzyme (ACE) inhibitor, fosinopril. During treatment periods, the patient demonstrated a significant decrement in 24-hour urinary protein excretion without change in renal function. The patient acted as her own control. After discontinuation of the drug, the 24-hour protein excretion deteriorated to pretreatment levels. ACE inhibition has been reported to decrease proteinuria and to have a beneficial influence on the progression of renal failure in diabetic and nondiabetic renal disease. To date, there is no known therapy for HIV-associated nephropathy. Our preliminary results in this patient suggest the need for long-term studies to assess whether this form of therapy can improve proteinuria over longer periods and, at the same time, ameliorate the progressive form of nephropathy seen in selected HIV-seropositive patients.
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PMID:Response to inhibition of angiotensin-converting enzyme in human immunodeficiency virus-associated nephropathy: a case report. 812 48

Amphotericin is a powerful antifungal agent of high toxicity. Encapsulation in liposomes has led to new perspectives although clinical experience is still slight. Four patients, who were neither carriers of antibodies against the human immunodeficiency virus nor neutropenic, diagnosed of meningeal cryptococcosis, pleural aspergillosis, cerebral aspergillosis and ophthalmic candidiasis, respectively and treated with liposomal amphotericin are reported. The treatment was effective and well tolerated. Clinical improvement was observed in the patient with cerebral aspergillosis but magnetic resonance demonstrated persistence of the lesions. Only slight deterioration in renal function was observed in one case and in the other two renal failure improved upon substitution of conventional amphotericin by liposomal amphotericin. The slight systemic toxicity and the absence of local intolerance allowed the administration of high doses and shortening of the therapeutic schedule.
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PMID:[Liposome amphotericin in the treatment of deep mycoses in patients not severely immunosuppressed. An efficient alternative with low toxicity]. 823 58


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