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1.
Ann Dermatol Venereol ; 145(5): 365-375, 2018 May.
Artículo en Francés | MEDLINE | ID: mdl-29673747

RESUMEN

BACKGROUND: Annular lichenoid dermatitis of youth (ALDY) is a rare form of dermatitis mainly affecting children and young people. All cases reported show a consistent clinical and histological picture. This is the first case described in the French literature. PATIENTS AND METHODS: A 5-year-old girl presented an annular isolated patch of the lower abdomen with an erythematosquamous border and central hypopigmentation for one year. Topical corticosteroids and pimecrolimus proved effective but relapse occurred after treatment withdrawal. DISCUSSION: Over sixty cases of ALDY are described in the English-language medical literature. The main differential diagnosis is childhood mycosis fungoides, particularly the hypopigmented variant. Biopsy is necessary for diagnosis since it can reveal typical histological features. Histopathology in all cases shows lichenoid reaction with CD4+ and CD8+ polyclonal lymphocytes. It is limited to the tips of rete ridges and associated with apoptosis of keratinocytes resulting in quadrangular-shaped rete ridges. Our case does not demonstrate either epidermotropism or atypical lymphocytes. CONCLUSION: Annular lichenoid dermatitis of youth (ALDY) is a poorly known distinctive entity within the lichenoid dermatitis family. Clinical-histological correlation is essential to diagnosis. The etiology is still unknown and the course is mostly chronic.


Asunto(s)
Dermatitis/diagnóstico , Erupciones Liquenoides/diagnóstico , Preescolar , Dermatitis/patología , Diagnóstico Diferencial , Femenino , Humanos , Erupciones Liquenoides/patología , Micosis Fungoide/diagnóstico
2.
Ann Dermatol Venereol ; 144(5): 368-373, 2017 May.
Artículo en Francés | MEDLINE | ID: mdl-28291538

RESUMEN

BACKGROUND: Synthetic antithyroid drugs are often used in the treatment of hyperthyroidism, regardless of aetiology. They may cause various side effects, including the development of anti-neutrophil cytoplasmic antibodies (ANCA), ANCA-associated vasculitis, and neutrophilic dermatoses. Propylthiouracil (PTU) is the antithyroid drug most frequently implicated in ANCA-associated diseases specifically involving anti-myeloperoxidase ANCA (MPO-ANCA). To our knowledge, there are no clinical reports describing the association of pyoderma gangrenosum (PG) and anti-proteinase3-ANCA (PR3-ANCA) induced by PTU, with ANCA levels decreasing after antithyroid drug withdrawal. PATIENTS AND METHODS: A 68-year-old woman was treated with propylthiouracil (PTU) for toxic multinodular goitre. She presented necrotic ulceration of the lower abdomen. The patient's history, physical examination, and bacteriological and histological samples led to a diagnosis of pyoderma gangrenosum. This pyoderma involved ANCA with antigenic specificity for proteinase 3. Withdrawal of PTU and a short course of corticosteroids and cyclosporine resulted in rapid and complete resolution of the pyoderma gangrenosum as well as a decrease in ANCA. No relapse was observed one year after cessation of treatment. DISCUSSION: We report a case of PG associated with PR3-ANCA induced by PTU, without any demonstrable vasculitis.


Asunto(s)
Antitiroideos/efectos adversos , Ciclosporina/uso terapéutico , Fármacos Dermatológicos/uso terapéutico , Glucocorticoides/uso terapéutico , Propiltiouracilo/efectos adversos , Piodermia Gangrenosa/inducido químicamente , Abdomen , Anciano , Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos , Anticuerpos Anticitoplasma de Neutrófilos , Biomarcadores/sangre , Quimioterapia Combinada , Femenino , Humanos , Hipertiroidismo/tratamiento farmacológico , Resultado del Tratamiento
3.
Int J Obes (Lond) ; 40(12): 1891-1898, 2016 12.
Artículo en Inglés | MEDLINE | ID: mdl-27633147

RESUMEN

OBJECTIVE: To compare the weight loss, change in quality of life (QOL) and safety of closed-loop gastric electrical stimulation (CLGES) versus adjustable gastric band (LAGB) in the treatment of obesity. METHODS: This multicenter, randomized, non-inferiority trial randomly assigned the patients in a 2:1 ratio to laparoscopic CLGES versus LAGB and followed them for 1 year. We enrolled 210 patients, of whom 50 were withdrawn preoperatively. Among 160 remaining patients (mean age=39±11 years; 75% women; mean body mass index=43±6 kg m-2) 106 received CLGES and 54 received LAGB. The first primary end point was non-inferiority of CLGES versus LAGB, ascertained by the proportion of patients who, at 1 year, fulfilled: (a) a ⩾20% excess weight loss (EWL); (b) no major device- or procedure-related adverse event (AE); and (c) no major, adverse change in QOL. Furthermore, ⩾50% of patients had to reach ⩾25% EWL. The incidence and seriousness of all AE were analyzed and compared using Mann-Whitney's U-test. RESULTS: At 1 year, the proportions of patients who reached all components of the primary study end point were 66.7 and 73.0% for the LAGB and CLGES group, respectively, with a difference of -6.3% and an upper 95% CI of 7.2%, less than the predetermined 10% margin for confirming the non-inferiority of CLGES. The second primary end point was also met, as 61.3% of patients in the CLGES group reached ⩾25% EWL (lower 95% CI=52.0%; P<0.01). QOL improved significantly and similarly in both groups. AE were significantly fewer and less severe in the CLGES than in the LAGB group (P<0.001). CONCLUSIONS AND RELEVANCE: This randomized study confirmed the non-inferiority of CLGES compared with LAGB based on the predetermined composite end point. CLGES was associated with significantly fewer major AE.


Asunto(s)
Terapia por Estimulación Eléctrica , Gastroplastia , Laparoscopía , Obesidad Mórbida/terapia , Pérdida de Peso , Adolescente , Adulto , Remoción de Dispositivos , Electrodos Implantados , Conducta Alimentaria , Femenino , Estudios de Seguimiento , Gastroplastia/efectos adversos , Gastroplastia/instrumentación , Gastroplastia/métodos , Humanos , Laparoscopía/efectos adversos , Laparoscopía/métodos , Masculino , Persona de Mediana Edad , Resultado del Tratamiento , Adulto Joven
4.
J Visc Surg ; 158(1): 51-61, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-33436155

RESUMEN

Nutritional care after bariatric surgery is an issue of major importance, especially insofar as risk of deficiency has been extensively described in the literature. Subsequent to the deliberations carried out by a multidisciplinary working group, we are proposing a series of recommendations elaborated using the Delphi-HAS (official French health authority) method, which facilitates the drawing up of best practice and consensus recommendations based on the data of the literature and on expert opinion. The recommendations in this paper pertain to dietary management and physical activity, multivitamin and trace element supplementation and the prevention and treatment of specific deficiencies in vitamins B1, B9, B12, D and calcium, iron, zinc, vitamins A, E and K, dumping syndrome and reactive hypoglycemia.


Asunto(s)
Cirugía Bariátrica , Obesidad Mórbida , Cirugía Bariátrica/efectos adversos , Consenso , Humanos , Apoyo Nutricional , Vitaminas/uso terapéutico
5.
J Chir (Paris) ; 146(3): 261-4, 2009 Jun.
Artículo en Francés | MEDLINE | ID: mdl-19665121

RESUMEN

BACKGROUND: Reintervention for failed bariatric procedures is a subject of much debate. Our experience in remediating failed vertical banded gastroplasty (VBG) suggests that the placement of an adjustable lapband may be a useful technique. PATIENTS AND METHODS: Over a 13-year period, 98 patients with failed VBG underwent remedial placement of an adjustable lapband. Unsatisfactory results of VBG were due to disruption of the staple line in 58% of cases and to outlet enlargement in 37% of patients. Mean BMI was 38 (range: 28-48); BMI was less than 35 in 37% of cases. RESULTS: Seven postoperative complications (7%) were noted and required the removal of the lapband in five cases. The average loss of excess weight was 52% at 8 years. Twenty-two percent of patients were lost to follow-up. CONCLUSION: Placement of an adjustable lapband has proved to be a useful remedial approach in the majority of cases and demonstrates that further restriction of a previous restrictive procedure is useful in patients who initially responded well to VBG.


Asunto(s)
Gastroplastia/instrumentación , Femenino , Humanos , Masculino , Complicaciones Posoperatorias/cirugía , Reoperación , Retratamiento , Insuficiencia del Tratamiento
6.
Ann Endocrinol (Paris) ; 66(2 Pt 3): 2S50-5, 2005 Apr.
Artículo en Francés | MEDLINE | ID: mdl-15959397

RESUMEN

In France, indications for bariatric surgery are clearly defined in the recommendations issued by ANAES and medical societies. The number of surgical procedures performed in France, is currently estimated to be 10 to 12.000 per year, with a regular increase of the gastric banding technique, which represents now more than 75% of the procedures. This review presents the main surgical procedures, and particularly, insists on their post-operative complications and their prevention, diagnosis and management.


Asunto(s)
Gastroplastia , Obesidad/terapia , Estómago/fisiología , Terapia por Estimulación Eléctrica , Francia/epidemiología , Balón Gástrico/estadística & datos numéricos , Derivación Gástrica/estadística & datos numéricos , Gastroplastia/efectos adversos , Gastroplastia/estadística & datos numéricos , Humanos , Síndromes de Malabsorción/etiología , Síndromes de Malabsorción/terapia , Obesidad/epidemiología , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/terapia , Estómago/fisiopatología
7.
Hum Gene Ther ; 7(1): 23-31, 1996 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-8825865

RESUMEN

Because interleukin-10 (IL-10) has potent immunosuppressive and anti-inflammatory properties and is produced by some cancers, we hypothesized that its production might play a role in carcinogenesis by inhibiting adequate antitumoral immune responses. To test this hypothesis, retroviral vectors containing the IL-10 cDNA were generated and used to infect B16F1 melanoma cells that were injected subcutaneously in syngeneic mice. Surprisingly, IL-10 gene transfer resulted in a loss of tumorigenicity that was proportional to the amount of IL-10 secreted. Histological analysis showed massive area of necrosis of these tumor cells, with infiltration of polymorphic inflammatory cells. Parental cells simultaneously implanted had decreased tumorigenicity only when mixed with IL10-producing cells, but not when injected contralaterally, suggesting that their eradication is mediated mostly by a local phenomenon. Host T lymphocytes and natural killer (NK) cells were involved in this eradication because IL-10-producing cells grew in nude mice and in CD8+ or NK-depleted mice. Finally, mice injected with IL-10-secreting cells developed an antitumoral systemic immune response able to protect them against a subsequent challenge with parental cells. These results demonstrate that, in some settings, IL10 may have in vivo immunostimulating and proinflammatory properties that need to be considered in its therapeutic development.


Asunto(s)
Expresión Génica , Interleucina-10/genética , Melanoma/inmunología , Células 3T3 , Animales , Linfocitos T CD4-Positivos/inmunología , Linfocitos T CD8-positivos/inmunología , Pruebas de Carcinogenicidad , Técnicas de Transferencia de Gen , Inmunogenética , Interleucina-10/metabolismo , Células Asesinas Naturales/inmunología , Depleción Linfocítica , Melanoma/patología , Melanoma/fisiopatología , Ratones , Ratones Endogámicos C57BL , Ratones Desnudos , Células Tumorales Cultivadas
8.
Hum Gene Ther ; 7(5): 627-35, 1996 Mar 20.
Artículo en Inglés | MEDLINE | ID: mdl-8845388

RESUMEN

The transfer of the gene coding for the thymidine kinase of the herpes simplex virus (HSV-tk), followed by ganciclovir (GCV) administration, has been described for the treatment of several types of cancer, especially brain tumors. We further studied the efficacy of this approach by using the 9L rat gliosarcoma model, and cells producing 5 x 10(3), 9 x 10(4), 3 x 10(5) HSV-tk retroviral particles per milliliter. Their stereotactic injection in 9L brain tumors and GCV treatment did not result in any increase of survival. To study a model of optimal in vivo transduction, we examined the survival of rats with tumors growing from 9L cells that had been previously transduced in vitro with the HSV-tk vectors (9LTk cells). We observed that GCV administration cured 26% (n = 42) of the animals with 9LTk brain tumors, with most of the relapsing tumors remaining HSV-tk positive. The increase of either the dose or the duration of GCV treatment did not improve the survival rate. But the cerebral localization of the tumor played an important role, because this survival rate reached 67% (n = 12) when similar tumors were growing subcutaneously. No or only marginal antitumoral responses were induced by the presence of a selectable marker gene in the HSV-tk vectors. These results demonstrate that in vitro HSV-tk gene transfer in 9L tumor cells, but not in vivo gene transfer, followed by GCV treatment, is able to cure rats at a rate that is higher for subcutaneous than for intracerebral tumors.


Asunto(s)
Neoplasias Encefálicas/terapia , Técnicas de Transferencia de Gen , Gliosarcoma/terapia , Simplexvirus/enzimología , Timidina Quinasa/uso terapéutico , Animales , Cartilla de ADN , Ganciclovir/uso terapéutico , Marcadores Genéticos , Vectores Genéticos , Masculino , Ratas , Ratas Endogámicas F344 , Retroviridae/genética , Retroviridae/metabolismo , Simplexvirus/genética , Neoplasias Cutáneas/terapia , Timidina Quinasa/metabolismo , Transducción Genética
9.
Hum Pathol ; 32(1): 135-8, 2001 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-11172309

RESUMEN

Lymphoepithelioma-like carcinoma (LELC) of uterine cervix is an uncommon variant of squamous cell carcinoma (SCC). We report here 2 new cases in which DNA sequences from human papilloma virus (HPV) types 16 and 18 were detected by polymerase chain reaction (PCR). To the best of our knowledge, HPV infection has not been previously described in similar cases occuring in European women. Moreover, Epstein-Barr virus (EBV), which is frequently associated with cervical LELC in Asian women, was absent in our 2 cases. These results suggest that HPVs but not EBV can play a role in the pathogenesis of LELC occuring in women originating from Western countries.


Asunto(s)
Carcinoma de Células Escamosas/patología , Papillomaviridae , Neoplasias del Cuello Uterino/patología , Carcinoma de Células Escamosas/virología , Cuello del Útero/patología , Cuello del Útero/virología , ADN Viral/genética , Femenino , Herpesvirus Humano 4/genética , Humanos , Persona de Mediana Edad , Papillomaviridae/genética , Infecciones por Papillomavirus/patología , Infecciones por Papillomavirus/virología , Reacción en Cadena de la Polimerasa , Infecciones Tumorales por Virus/patología , Infecciones Tumorales por Virus/virología , Neoplasias del Cuello Uterino/virología
10.
Obes Surg ; 9(5): 446-52, 1999 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-10605901

RESUMEN

BACKGROUND: Laparoscopic adjustable gastric banding (LAGB) has been adopted by many bariatric surgeons. It remains under scrutiny, although it represents a major innovation in the treatment of morbid obesity. We present the lessons from the first 500 patients treated in our institution. METHODS: From April 1995 to November 1998, 500 patients (421 females, 79 males) underwent an LAGB in our institution: 432 were morbidly obese and 68 were superobese. Mean body mass index (BMI) was 43, and mean excess weight was 51 kg. RESULTS: There have been no deaths. There was one case of gastric perforation reoperated on and three cases of pulmonary and/or abdominal collections treated by drains. Two rings were changed for leakage. One ring was removed for a postoperative sigmoiditis. Three late gastric erosions occurred, requiring removal of the ring. Five access- ports have been removed for infection. 25 cases (5%)of pouch dilatation have been observed of which 18 (3.6%) led to reoperation. Mean follow-up was 21 months. Mean excess weight loss was 56% at 1 year, 65% at 2 years, and 64% at 3 years. CONCLUSION: This favorable outcome led us to propose laparoscopic banding to all our patients instead of stapling gastroplasty. Short-term data should be confirmed by a longer follow-up, but indicate that LAGB should provide good results in terms of weight loss and that there are a limited number of failures. We believe that it should not be regarded just as a first-step procedure but as a final therapy, even for superobese patients.


Asunto(s)
Gastroplastia/métodos , Laparoscopía/métodos , Obesidad Mórbida/cirugía , Adolescente , Adulto , Índice de Masa Corporal , Estudios de Evaluación como Asunto , Femenino , Estudios de Seguimiento , Francia , Gastroplastia/efectos adversos , Humanos , Laparoscopía/efectos adversos , Masculino , Persona de Mediana Edad , Obesidad Mórbida/diagnóstico , Satisfacción del Paciente , Radiografía , Índice de Severidad de la Enfermedad , Estómago/diagnóstico por imagen , Estómago/cirugía , Pérdida de Peso
11.
Obes Surg ; 7(1): 34-8, 1997 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-9730536

RESUMEN

BACKGROUND: Since May 1995, we have used laparoscopic adjustable silicone gastric banding (ASGB) as an alternative to silastic ring vertical gastroplasty (SRVG) to treat morbid obesity. Moreover, it seemed that ASGB was an appropriate procedure to use when SRVG had failed and no alternative procedure could be attempted again, which occurred in two patients. Because of adhesions, the laparoscopic approach was inappropriate in both cases. The size of the pouch and the staple-line were not obstacles to ASGB. METHODS: Case 1 was a 53-year-old woman of 111 kg (BMI = 46) who had SRVG in July 1994. One year later, she had a 54 kg weight loss, but had continuing food intolerance, although malfunction of the pouch or ring could not be found. A removal of the ring was performed in October 1995, and a 10-cm diameter silicone band placed. The band was not inflated until she had regained weight 5 months later. Case 2 was a 33-year-old woman of 100 kg (BMI = 40) who had SRVG in March 1994. Weight loss was 45 kg 18 months later; then she gained weight. Endoscopy and barium swallow showed both staple-line disruption and band erosion. Removal of the ring was performed in March 1996, and a 9.75-cm diameter silicone band placed, and inflated at the same time with 2 cc saline. RESULTS: Both patients are doing well. CONCLUSIONS: ASGB appeared to be the best alternative when revising an SRVG in cases where a new stapling or the placement of a new ring could have had consequences more serious than the primary complications.


Asunto(s)
Gastroplastia/métodos , Adulto , Femenino , Humanos , Persona de Mediana Edad , Complicaciones Posoperatorias/cirugía , Reoperación , Adherencias Tisulares/complicaciones
12.
J Cancer Res Clin Oncol ; 123(10): 560-4, 1997.
Artículo en Inglés | MEDLINE | ID: mdl-9393590

RESUMEN

Leukaemic and lymphomatous infiltration of the appendix is rare and even rarer is acute appendicitis as the initial manifestation. From our routine biopsy material we collected four cases of haematological malignancies presenting as acute appendicitis or acute abdomen, caused or accompanied by tumoral infiltration of the appendix. Appendicitis was the initial manifestation that allowed diagnosis of the underlying disease. The clinical histories and histological examinations of the appendices and of one autopsy are described. We report the first detailed description of acute myeloid leukaemia involving the appendix, and three cases of lymphomatous infiltration of the appendix presenting with appendicitis, and give an overview of the literature. In these days of budgetary cuts in national health services, where one may be tempted not to have seemingly commonplace cases of appendicitis histologically verified, our cases emphasize that careful histopathological examination of all appendectomy specimens should be mandatory. Despite the fact that leukaemia and lymphoma of the appendix are rare, our cases illustrate that these must be included in the differential diagnosis of acute appendicitis and that physicians and surgeons have to be aware of these conditions.


Asunto(s)
Abdomen Agudo/diagnóstico , Neoplasias del Apéndice/diagnóstico , Apendicitis/diagnóstico , Leucemia Promielocítica Aguda/diagnóstico , Linfoma/diagnóstico , Enfermedad Aguda , Adulto , Anciano , Femenino , Humanos , Masculino
13.
Am J Clin Pathol ; 103(5): 568-73, 1995 May.
Artículo en Inglés | MEDLINE | ID: mdl-7741101

RESUMEN

Intermediate and high grade subtypes of non-Hodgkin's large cell (LCL) and immunoblastic lymphomas exhibit considerable variability, and histologic morphology alone may not adequately characterize those features important for prognosis. The relationship between nuclear morphology and survival was assessed in a series of 50 cases of large cell lymphomas in which ploidy, proliferation, and nuclear area (NA) were measured. Ploidy was calculated by both DNA index (DI) and DNA histogram type (DHT). Proliferation was calculated from the proportion of S phase (SPF) cells present in the DHT. These four parameters were measured using image cytometry of Feulgen-stained nuclei from fine-needle aspirations. To characterize the relationship with survival, these parameters were associated with the clinical follow-up of the patients. The results show that of the 50 LCL cases, only 5 were clearly aneuploid, whereas the remaining 45 were either diploid (29 cases), tetraploid/hypotetraploid (13 cases), or weakly aneuploid (hyperdiploid, 3 cases). Of the 34 patients who died from their disease, both smaller NA and DI correlated with longer survival in an equivalent fashion; neither conferred greater sensitivity when combined with the other. The SPF did not correlate with survival. In LCL, aneuploidy seems to be a relatively uncommon event, but when present ploidy measurement appears useful to define prognosis.


Asunto(s)
Linfoma de Células B Grandes Difuso/mortalidad , Linfoma de Células B Grandes Difuso/patología , Ploidias , Adulto , Anciano , División Celular , Núcleo Celular/ultraestructura , ADN de Neoplasias/análisis , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pronóstico
14.
J Clin Pathol ; 52(7): 547-9, 1999 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-10605414

RESUMEN

A nine year old boy with localised Castleman disease of the hyaline-vascular subtype developed a calcifying fibrous pseudotumour. This pathological association does not appear to have been described before. In this case, the development of this very unusual soft tissue tumour-like process was thought to be related to a previous fine needle aspiration biopsy, which was performed because of lymphadenopathy localised to the right inguinal area. This case provides further evidence of the reactive nature of calcifying fibrous pseudotumour and also broadens the pathological spectrum of the stromal cell proliferation that occasionally supervenes within lesions of Castleman disease, hyaline-vascular type.


Asunto(s)
Biopsia con Aguja/efectos adversos , Calcinosis/etiología , Enfermedad de Castleman/patología , Ganglios Linfáticos/patología , Calcinosis/patología , Niño , Fibrosis , Humanos , Conducto Inguinal , Masculino
15.
Virchows Arch ; 438(3): 298-301, 2001 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-11315627

RESUMEN

The case of a 40-year-old black man, who developed a very unusual tumour-like lymphoid hyperplasia involving primarily the subcutaneous tissue, is reported. The lesion, which arose at a site of tribal scarifications, displayed a deceptive morphology that closely resembled subcutaneous panniculitis-like T-cell lymphoma (SPTCL). An accurate diagnosis could only be made following detailed immunohistochemical and molecular studies. Although SPTCL has been thought to represent a very specific clinicopathologic entity, the present case illustrates that its histological appearance can, however, be closely mimicked by reactive and benign conditions.


Asunto(s)
Linfoma Cutáneo de Células T/patología , Piel/patología , Adulto , Cicatriz , Humanos , Hiperplasia , Inmunofenotipificación , Linfoma Cutáneo de Células T/inmunología , Masculino
16.
Cancer Genet Cytogenet ; 113(2): 180-2, 1999 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-10484988

RESUMEN

Numerous chromosome abnormalities have been described in myelodysplastic syndromes, but single karyotypic aberrations are much less frequent. We report the case of a 65-year-old woman who presented a trisomy 21 as the sole karyotypic anomaly for a refractory anemia with ring sideroblasts. The nature of such an anomaly is discussed in regard to pathogenesis and prognosis.


Asunto(s)
Anemia Sideroblástica/genética , Síndrome de Down , Anciano , Médula Ósea/patología , Médula Ósea/fisiología , Femenino , Humanos , Hibridación Fluorescente in Situ
17.
Leuk Lymphoma ; 24(5-6): 545-51, 1997 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-9086445

RESUMEN

Little is known about the function of the T lymphocytes in lymphocyte predominance Hodgkin's disease. We report here the case of a 37-year-old man with a diffuse LPHD, featuring a similar increase in T lymphocytes in both the peripheral blood and the tumor, thus allowing for their characterization by functional assays. These cells were CD4+CD45RO+ and produced high amounts of IL-2 and IFN-gamma, consistent with a TH1-type profile. This subset of T helper cells is involved in cellular immunity and could reflect a cytotoxic reaction directed against the neoplastic cells.


Asunto(s)
Enfermedad de Hodgkin/patología , Linfocitos T/fisiología , Adulto , Antígenos CD/análisis , Citometría de Flujo , Enfermedad de Hodgkin/sangre , Enfermedad de Hodgkin/inmunología , Humanos , Inmunidad Celular/fisiología , Interferón gamma/biosíntesis , Interleucina-2/biosíntesis , Activación de Linfocitos , Masculino , Linfocitos T/inmunología , Linfocitos T/metabolismo
18.
Pathol Res Pract ; 191(5): 463-8; discussion 469-70, 1995 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-7479365

RESUMEN

A case of peripheral T-cell lymphoma classified, according to the updated Kiel classification, as a large pleomorphic T-cell lymphoma with a high content of reactive histiocytes and blood hypereosinophilia is reported. Light microscopic examination revealed a diffuse effacement of the lymph node structure by large pleomorphic lymphoma cells mixed with eosinophils and many histiocytes, some of them presenting discrete features of hemophagocytosis. The neoplastic cells were CD3, CD5, CD8 and HLA-DR positive but failed to show CD30 antigen. DNA molecular analysis displayed simultaneous rearrangements of the genes coding for the delta chain of the T-cell receptor and for the Ig heavy chain. Increased serum levels of angiotensin converting enzyme and ferritin were found and probably induced by the reactive histiocytes. Immunoassays (ELISA) with antibodies directed against some cytokines and against the Tac peptide (sIL-2R) were performed. They demonstrated high serum levels of sIL-2R and a slight increase in GM-CSF, but neither IL-5 nor IL-3. The association of blood hypereosinophilia and histiocytic hyperplasia with a peripheral T-cell lymphoma is discussed.


Asunto(s)
Eosinofilia/patología , Histiocitosis/patología , Linfoma no Hodgkin/patología , Linfoma de Células T/patología , Adulto , Citocinas/sangre , Diagnóstico Diferencial , Eosinofilia/sangre , Femenino , Histiocitosis/sangre , Humanos , Hiperplasia , Linfoma no Hodgkin/sangre , Linfoma de Células T/sangre , Estudios Retrospectivos
19.
Acta Neurol Belg ; 75(5): 219-29, 1975.
Artículo en Inglés | MEDLINE | ID: mdl-3939

RESUMEN

The authors report their experience with parenteral lorazepam in the acute treatment of 11 patients with EEG-confirmed status epilepticus. Ten adults and one 6-year-old child were injected respectively with 5 mg and 2.5 mg lorazepam. All of these patients exhibited prompt cessation of seizures both electrical and clinical. Some data indicate a longer lasting relief than that provided by an equal dose of diazepam.


Asunto(s)
Ansiolíticos/uso terapéutico , Epilepsia/tratamiento farmacológico , Lorazepam/uso terapéutico , Adolescente , Adulto , Niño , Evaluación de Medicamentos , Epilepsias Parciales/tratamiento farmacológico , Epilepsia Tipo Ausencia/tratamiento farmacológico , Femenino , Humanos , Inyecciones Intravenosas , Lorazepam/administración & dosificación , Masculino , Persona de Mediana Edad
20.
Acta Neurol Belg ; 76(3): 173-9, 1976.
Artículo en Inglés | MEDLINE | ID: mdl-9769

RESUMEN

The anticonvulsive effect of Lorazepam -- one of the newer diazepines -- has been tested in 10 patients with induced epileptic conditions under continuous polygraphic control. The quantitative analysis of the paroxysmal discharges -- i.e. the evolution of the "paroxysmal index" -- shows that 5 mg IV Lorazepam normalize the tracings in 2.3 minutes. Parenteral Lorazepam inhibits pharmacologically-induced electroencephalographic abnormalities in man. Its action is slightly delayed. No effect on cardiac or respiratory function, or muscle tone was noted.


Asunto(s)
Ansiolíticos/uso terapéutico , Epilepsia/tratamiento farmacológico , Lorazepam/uso terapéutico , Adolescente , Adulto , Evaluación de Medicamentos , Epilepsia/inducido químicamente , Femenino , Humanos , Infusiones Parenterales , Lorazepam/administración & dosificación , Masculino , Persona de Mediana Edad , Factores de Tiempo
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