Publications by authors named "Aymard B"

Renal hemosiderosis is a rare cause of acute kidney injury, but it can also lead to chronic kidney failure. We report here the case of a 73-year-old patient with acute kidney caused by a massive hemosiderosis following the proximal disinsertion of a prosthesis of the ascendant aorta with chronic aortic dissection. The kidney biopsy revealed the diagnosis, showing massive iron deposits inside the proximal tubules, especially with Perls staining and also diffuse hematic casts in the lumen of the tubules.

View Article and Find Full Text PDF

After injury, while regeneration can be observed in hydra, planaria and some vertebrates, regeneration is rare in mammals and particularly in humans. In this paper, we investigate the mechanisms by which biological tissues recover after injury. We explore this question on adipose tissue, using the mathematical framework recently developed in Peurichard et al.

View Article and Find Full Text PDF

We present a new methodology to estimate the contact angles of sessile drops from molecular simulations by using the Gaussian convolution method of Willard and Chandler [J. Phys. Chem.

View Article and Find Full Text PDF

Introduction: The evolution of idiopathic membranous membranous (MNi) is variable, treatment is discussed. Our work's main objective was to evaluate the results of a standardized management strategy proposed in 2006 in Lorraine (Nephrolor health network). The secondary objective was to evaluate the professional practices.

View Article and Find Full Text PDF

Aim: The physiopathology of Raynaud's phenomenon (RP) is not currently fully resolved. The cold seems to be not only an important factor triggering attacks, but also inducing RP. The aims of this study were to assess the prevalence of RP in Nantes urban district, and study the relationship between RP prevalence and cold climate.

View Article and Find Full Text PDF

We report the case of a 55-year-old male with renal failure as the initial manifestation of interstitial and focal infiltration of the kidneys by a small B-cell lymphoma. Since three years, this patient had a history of CLL with plasmocytic differentiation and was left untreated owing to stade A Binet classification. After chemotherapy, the lymphocytosis and the adenopathies disappear and the renal function improve.

View Article and Find Full Text PDF

A 62-year-old woman presented with nephrotic syndrome, monoclonal gammopathy, and membranous-like nephropathy with nonorganized deposits composed of monoisotypic immunoglobulin G1 lambda protein. Nephrotic syndrome remitted after a brief course of treatment with melphalan despite ongoing production of the monoclonal protein. The circulating monoclonal immunoglobulin G1 lambda showed unusual in vitro aggregation properties, including dependence on low ionic strength and neutral pH, suggesting that electrostatic interactions had a role in the precipitation process.

View Article and Find Full Text PDF

Background: As yet, no clinical or morphological prognostic classification of IgA nephropathy (IgAN) has been generally accepted. The objective of our study was to quantify the risk of developing end-stage renal failure (ESRF) in IgAN.

Methods: We report a prospective longitudinal study of 210 patients with IgAN confirmed by biopsy between 1987 and 1991.

View Article and Find Full Text PDF

Background: IgA nephropathy (IgAN) is considered as a disease of young men under 30 years of age. Findings on clinical and histological presentation and outcome in older patients have rarely been published.

Methods: In a prospective cohort of IgAN patients, recruited over 3 years, 33 patients over age 50 were compared to 96 patients under age 50, according to clinical and histological findings.

View Article and Find Full Text PDF

A case of an Epstein-Barr virus (EBV)-associated B lymphoproliferative disorder presented as a renal transplant obstruction is reported. The diagnosis was made from histology, immunohistochemistry, and EBV expression studies. Cytogenetic analysis showed the tumor to be of donor origin and revealed chromosomal translocation 46, XY, inv (1)(p35; q41), involving the EBV insertion site 1(1p35) and transforming growth factor beta 2(1q41) loci.

View Article and Find Full Text PDF

A 56-year-old woman with long-lasting fever of unknown origin was diagnosed as having a giant-cell arteritis of the genital tract with no evidence of temporal arteritis. Diagnosis relied on pathological examination, which showed a segmental panarteritis of ovaries, myometrium, endometrium and uterus cervix. Corticosteroid therapy led to clinical cure within a few weeks.

View Article and Find Full Text PDF

A case of a 6-year-old boy with a painful dorsal scoliosis secondary to an osteoid osteoma in a rib is described. Surgical excision was performed and the scoliosis decreased. Such cases are very rare.

View Article and Find Full Text PDF

Forty-two cases of pauci-immune necrotizing glomerulonephritis were reviewed on a 10 years period. Selection was exclusively based on histological criteria, i.e.

View Article and Find Full Text PDF

Two unusual cases of non-ossifying fibromas in boys of 4 years with partial cystic degeneration are presented. The osseous cavities did not respond to corticosteroids.

View Article and Find Full Text PDF

In a 4-year-old boy, cystitis in a pseudotumoral form with left ureterohydronephrosis wa discovered on the occasion of repeated urinary infections. Several biopsies were required to rule out a malignant tumor, and they showed that this condition was an eosinophilic cystitis. Healing was obtained with an anti-bilharzial treatment, although this child did not suffer form bilharziasis.

View Article and Find Full Text PDF

The authors report ten cases of drug induced lung diseases, complicated by respiratory failure of whom five were attributed to cytotoxic drugs and five to non cytotoxic drugs. The drug induced lung disease presented as acute respiratory distress syndrome in two cases, alveolar interstitial lung disease in three cases, purely interstitial in five cases. There was acute respiratory failure (ARF) in eight cases and chronic respiratory failure (CRF) in two cases.

View Article and Find Full Text PDF