Publications by authors named "Ridel P"

Introduction: Breast reconstruction using Deep Inferior Epigastric Perforator (DIEP) flap involves complementary surgeries such as lipofilling, symmetrization, and nipple-areolar complex (NAC) reconstruction. Their role and impact have not been explored yet after the DIEP flap use.

Material And Methods: A retrospective study was performed to evaluate the impact of complementary surgeries on the quality of life of 75 patients after DIEP flap breast reconstruction between 2012 and 2021, comparing the BREAST-Q© score of two groups, patients with DIEP flap only reconstruction and patients with DIEP flap and additional surgeries.

View Article and Find Full Text PDF

Aim Of The Study: Ten percent of childhood burns could arise from maltreatment. While describing 6 severe cases of inflicted scalds by immersion in children, we expose our systematic diagnostic approach of abuse and confirm the serious nature of burn when they are inflicted.

Patients And Method: The retrospective study concerned children hospitalized for scalds by immersion between 2013 and 2016 and for whom child abuse has been confirmed.

View Article and Find Full Text PDF
[Not Available].

Ann Burns Fire Disasters

September 2018

Most hospitals use protocols for surgical antibioprophylaxis (ABP). Despite SFB's 2009 recommendations promoting ABP in burn patients and stating the molecules to be used, wide variations exist within hospitals and among French hospitals, in cases of skin grafting and use of dermal substitutes. We contacted surgeons in 12 French Burn Centres (BCs) via email and questioned them about ABP in cases of skin grafting (thin and total) as well as in the use of dermal substitutes, in acute and sequelae settings.

View Article and Find Full Text PDF

Background: Autologous adipose tissue transfer may be performed for aesthetic needs following resection of osteosarcoma, the most frequent primary malignant tumor of bone, excluding myeloma. The safety of autologous adipose tissue transfer regarding the potential risk of cancer recurrence must be addressed.

Methods: Adipose tissue injection was tested in a human osteosarcoma preclinical model induced by MNNG-HOS cells.

View Article and Find Full Text PDF

Introduction: Among all complications that affect patients with neurofibromatosis, type I (NF1) are very aggressive malignant nerve sheath tumors (MPNSTs). Surgery is their first line therapy.

Clinical Case: We report the case of a non metastatic neurofibrosarcoma of the axillary area in a 22-year-old male with NF1.

View Article and Find Full Text PDF

Aim Of The Study: Occlusive dressings for second-degree hand burns in children must prevent infection and promote healing. For good management of analgesia, these treatments often require children to be hospitalized. Our goal was to find an alternative to conventional care protocol that would reduce the number of dressings and therefore the length of hospitalization.

View Article and Find Full Text PDF

Intraneural perineurioma is a rare benign peripheral sheath tumor, which is most prevalent in adolescents and young adults. It is characterized by focal perineural cell proliferation infiltrating the endoneurium leading to the macroscopic aspect of hypertrophic nerve. It typically presents a loss of motor function in the involved nerve.

View Article and Find Full Text PDF

We report the case of a 72-year-old patient sent by his dermatologist in January 2009 for a back burn. His medical history reported one coronarography and two coronaroplasties between September and October 2005. This enabled us to form the diagnosis of chronic radiodermatitis after coronaroplasty from literature data.

View Article and Find Full Text PDF

The 45-69 peptide, an helper T-cell epitope derived from the HIV nef protein is strongly immunogenic. A T-cell proliferative response was observed following immunization of Lou/M rats with 45-69 peptide administered in low dose and without any adjuvant. It is already known that the T-cell response to the 115-131 peptide of Sm28GST antigen, a protein of the parasite Schistosoma mansoni, requires the presence of a carrier of the use of peptidic constructs.

View Article and Find Full Text PDF

We studied a 45-69 lipopeptide obtained by N-terminal modification with a N epsilon-palmitoyl lysine residue of the 45-69 peptide derived from the nef protein of HIV. T cells from animals immunized intraperitoneally with 45-69 lipopeptide proliferated in vitro in the presence of 45-69 peptide while no response was obtained after intraperitoneal immunization with 45-69 peptide. The efficiency of the 45-69 lipopeptide is supported by the covalent association to the N epsilon-palmitoyl lysine moiety.

View Article and Find Full Text PDF

The 45-69 peptide, an helper T-cell epitope derived from HIV nef protein, is strongly immunogenic. A T-cell proliferative response was observed following immunization of Lou/M rats with 45-69 peptide administered in low dose and without any adjuvant. It is already known that the T-cell response to the 115-131 peptide of Sm28GST antigen, a protein of the parasite Schistosoma mansoni, requires the presence of a carrier or the use of peptidic constructs.

View Article and Find Full Text PDF

In Guadeloupe, a Caribbean island with a high prevalence of HTLV-I infected subjects, the percentage of false positive results for HIV IgG is high, requiring additional time and expense for confirmatory tests. This article describes a simple way of overcoming this problem. First, all IgG and IgG immune complexes are removed by protein G treatment, and then IgA enzyme-linked immunosorbent assay (ELISA) and the Western blot test are performed with minor modification of commercially available kits.

View Article and Find Full Text PDF

Toxoplasma gondii is an ubiquitous protozoan parasite which induces severe pathology in in utero infected children and in immunosuppressed patients (particularly in the case of AIDS). Previous work that focused on toxoplasma somatic antigens failed to demonstrate an efficient protection against highly virulent T. gondii strains.

View Article and Find Full Text PDF

In contrast to euthymic adult Fischer rats, immunocompromised Nu/Nu animals develop a lethal infection when inoculated with the RH strain of the protozoan Toxoplasma gondii. However, a significant period of survival is obtained when Nu/Nu rats are passively transferred with sera from 28-day infected Fischer +/+ (euthymic) animals. Specific IgE are involved since IgE-depleted sera are unable to afford such a protection.

View Article and Find Full Text PDF

In French Guiana, American cutaneous leishmaniasis is localized in the skin. The host response appears to be effective since few extra- or intracellular organisms can be found in tissue lesions, and we never observed any cutaneous dissemination or visceral involvement. However, this response is not fully effective since lesions may last for months.

View Article and Find Full Text PDF

A biochemical and immunological survey of a selected military group has been performed, before and after a jungle raid. Biochemical (total proteins, albumin, proteins electrophoresis, transferrin, haptoglobin, ceruloplasmin, orosomucoid, alpha-1 antitrypsin and alpha-2 macroglobin) and immunological (Ig G., Ig A.

View Article and Find Full Text PDF

Monocyte-derived blood macrophages of untreated patients with Leishmania braziliensis or Leishmania mexicana amazonensis infections show anomalies in their nonspecific immune functions. Their ability to kill HeLa cells or to produce interleukin-1 in vitro in response to lipopolysaccharide plus Candida albicans is lower than controls indicating that acquired or innate macrophage deficiencies may be involved in the course of the disease.

View Article and Find Full Text PDF

In highly purified blood-monocyte-derived macrophages collected from patients with leprosy and from healthy individuals and cultured in vitro with mycobacterial antigens such as Mycobacterium bovis BCG or Mycobacterium leprae, we nonspecifically induced the synthesis of interleukin-1. Normally, all supernatants from cultured macrophages of all subjects tested produced similar amounts of interleukin-1. However, only in patients with lepromatous leprosy, M.

View Article and Find Full Text PDF

Following treatment of BALB/c or C3H/HeN mice in the hind footpads with irradiated Mycobacterium leprae, a marked enhancement of natural killer (NK) activity was observed in cells from the draining popliteal lymph node or from the spleen. NK activity was further enhanced when the treatment consisted of killed M. leprae which had been incorporated into mouse peritoneal macrophages.

View Article and Find Full Text PDF

This report describes the presence of circulating Onchocerca volvulus antigens (COA) in sera of patients with onchocerciasis. By using a double diffusion immunoelectrophoresis method, COA could be detected in 24 of 77 sera analyzed (31%). In contrast, when more sensitive assays such as the radioimmunoprecipitation-PEG assay or sandwich radioimmunoassay were used to detect COA, about 75% of the sera from O.

View Article and Find Full Text PDF