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Pàgina 1 des de 37 resultats
Post-traumatic avascular necrosis of the femoral head predicted by preoperative technetium-99m antimony-colloid scan. An experimental and clinical study.
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We used technetium-99m antimony colloid to visualize the bone marrow of the head of the femur within twenty-four hours after interruption of the blood supply by subcapital osteotomy and section of the ligamentum teres in thirteen rabbits and within twenty-four hours after a subcapital fracture in
Asiaticoside induces tumour-necrosis-factor-α-mediated nitric oxide production to cure experimental visceral leishmaniasis caused by antimony-susceptible and -resistant Leishmania donovani strains.
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OBJECTIVE
The aim of this study was to investigate and characterize the efficacy of asiaticoside in an experimental model of visceral leishmaniasis caused by antimony-susceptible (AG83) and -resistant (GE1F8R and K39) Leishmania donovani.
METHODS
The effect of asiaticoside was evaluated by
Toxicity of antimony and its compounds.
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Experimental and clinical experience with compounds containing antimony have shown that the trivalent compounds are generally more toxic than the pentavalent ones. APT can cause severe pain and tissue necrosis and is therefore not given by intramuscular or subcutaneous injection. APT has the actions
Soluble receptors for tumor necrosis factor as markers of disease activity in visceral leishmaniasis.
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Serum concentrations of soluble receptors for tumor necrosis factor (sTNFRs) were measured before and after antimony therapy in 25 Sudanese patients with active visceral leishmaniasis (VL). Both sTNFR types I and II were significantly elevated in patients with VL compared with healthy controls from
Polyester fibre prosthetic anterior cruciate ligament implant rupture: necrosis of ingrown connective tissue.
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OBJECTIVE
To describe the histopathological and microanalytical features in seven cases of ruptured Apex(R) polyester (Terylene(R)) fibre anterior cruciate ligament prosthesis.
RESULTS
Transmitted and polarized light microscopy was performed in all cases; one case was investigated by
Comparative toxicity and tissue distribution of antimony potassium tartrate in rats and mice dosed by drinking water or intraperitoneal injection.
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Antimony potassium tartrate (APT) is a complex salt that until recently was used worldwide as an antischistosomal drug. Treatment was efficacious only if APT was administered intravenously to humans at a near lethal total dose of 36 mg/kg. Because unconfirmed epidemiologic studies suggested there
NTP technical report on the toxicity studies of Toxicity Studies of Antimony Potassium Tartrate (CAS No. 28300-74-5) in F344/N Rats And B6C3F1 Mice (Drinking Water and Intraperitoneal Injection Studies).
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Antimony potassium tartrate (APT) is a complex salt that until recently was used worldwide as an anti-schistosomal drug. APT was efficacious in humans only if administered intravenously at a near-lethal total dose of 36 mg/kg. Because unconfirmed epidemiologic studies suggested a possible
Radionuclide lymphoscintigraphy with technetium 99m antimony sulfide colloid to identify lymphatic drainage of cutaneous melanoma at ambiguous sites in the head and neck and trunk.
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Frequently the primary lesion of high-risk cutaneous melanoma (level III, greater than or equal to 1.5mm; greater than or equal to 1.0 mm with ulceration) is in an ambiguous lymphatic drainage site on the trunk, pelvic and shoulder girdles, and head and neck area. Lymphoscintigrams were performed by
Pentoxifylline prevents the meglumine antimonate-induced renal toxicity in rats, but not that induced by the inorganic antimony pentachloride.
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Tumor necrosis factor-alpha (TNF-alpha) is a mediator of inflammation and has an important role in human and experimental renal diseases. Pentoxifylline (PTX) has been shown to inhibit cytokine synthesis, including TNF-alpha. The aim of the present study was to examine the effect of PTX on meglumine
Uptake of different forms of antimony by wheat and rye seedlings.
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OBJECTIVE
The objectives of the research were to study how antimony (Sb) chemical form present in the growth medium can affect Sb uptake by plants and estimate effects of Sb on wheat and rye seedlings, in particular, assess variations in concentrations of nutrients resulting from bioaccumulation of
Early Cutaneous Leishmaniasis Patients Infected With Leishmania braziliensis Express Increased Inflammatory Responses After Antimony Therapy.
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UNASSIGNED
Early cutaneous leishmaniasis (ECL) is characterized by a nonulcerated papular lesion and illness duration less than 30 days. Approximately 4 weeks later, the cutaneous leishmaniasis (CL) ulcers appear. We were surprised to find that failure after antimony therapy (Sb5) is higher in ECL
Sodium antimony gluconate induces generation of reactive oxygen species and nitric oxide via phosphoinositide 3-kinase and mitogen-activated protein kinase activation in Leishmania donovani-infected macrophages.
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Pentavalent antimony complexes, such as sodium stibogluconate and sodium antimony gluconate (SAG), are still the first choice for chemotherapy against various forms of leishmaniasis, including visceral leishmaniasis, or kala-azar. Although the requirement of a somewhat functional immune system for
Visceral leishmaniasis in mice devoid of tumor necrosis factor and response to treatment.
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Tumor necrosis factor (TNF)-deficient mice were challenged with Leishmania donovani to characterize TNF in the response of visceral intracellular infection to antileishmanial chemotherapy. In wild-type controls (i) liver infection peaked at week 2 and resolved, (ii) discrete liver granulomas
Successful treatment of refractory mucosal leishmaniasis with pentoxifylline plus antimony.
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Mucosal leishmaniasis is characterized by an intense inflammatory reaction and tissue damage with few parasites in the lesion. On the basis of previous observations that suggest a possible role of tumor necrosis factor alpha (TNF-alpha) in the pathology of this disease, an open-label study was
Oral pentoxifylline combined with pentavalent antimony: a randomized trial for mucosal leishmaniasis.
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BACKGROUND
Mucosal leishmaniasis is associated with intense tissue damage and high tumor necrosis factor-alpha production. Therapeutic failure occurs in up to 42% of cases; patients who experience treatment failure will require >1 pentavalent antimony (Sb(v)) course or alternative drugs to achieve a
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