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Biomedical subjects

B Goichot

Publications and source records attributed to B Goichot.

At least 55 records · Page 3Linked to original sources
PubMed2001

[Hormonal perturbations in fibromyalgia].

Fibromyalgia is a syndrome characterized by chronic musculoskeletal pain and fatigue without biological detectable disturbances. The mechanisms of this disease are unknown. It has been postulated that it can be the consequence of a chronic stress mediated mainly through the hypothalamo-pituitary-adrenal axis and the sympathetic nervous system. These fields have been extensively studied. Results were scattered and non convincing. A reduction of growth hormone and IGF-1 levels described in a third of patients has led to a double blind random clinical trial with biogenetic growth hormone. Results were equivocal . Other hormonal systems are grossly normals and circadian rhythms are unaltered. Despite some arguments in favour of a CRH neurons hyperactivity, these results are not able to consolide a particular physiopathological mechanism and to argument for a new therapeutic approach. Many of the abnormalities may be the consequence of psychological disturbances.

Adrenocorticotropic Hormone↗
PubMed2000

[Adult celiac disease: importance of delay to diagnosis].

OBJECTIVE: Adult celiac disease is a genetically determined condition resulting from intolerance to gluten. This familial disease is associated with HLA B8 DR3 and is characterized by cytotoxic T-lymphocyte reaction in the digestive wall leading to a maladsorption syndrome. Adult celiac disease would be an expression of a silent disease already present in childhood. PATIENTS AND METHODS: We conducted a retrospective study in 19 patients. Diagnosis was established in a department of internal medicine in adulthood. We analyzed histological findings and the clinical history and course. RESULTS: The age curve at diagnosis peaked at 22 years and 67 years. Female sex predominated. Average delay to diagnosis was 3.1 years. The patients were admitted for reasons other than digestive disorders in 17 out of 19 cases. Careful history taking did however disclose subtle digestive signs. The principal manifestations were hematological disorders such as chronic anemia, abnormal liver function tests, and poor control of associated diseases. Type 1 diabetes mellitus was the main associated disease (4/19). Patients with prolonged nutritional deficiencies experienced serious situations. CONCLUSION: Adult celiac disease is a clinical variant suggesting the presence of other non-digestive disorders. Specific antibodies should be assayed in patients with even minimal signs of deficiency in order to identify associated diseases. The principal cause of mortality is digestive T-cell lymphoma. A gluten-free diet is essential to control the course of this chronic disease.

Adult↗
PubMed2000

[Capillary hyperpermeability syndrome of the face].

BACKGROUND: Capillary leak syndrome is a rare disorder, with various clinical features, characterized by episodes of diffuse edema. CASE REPORT: We report the case of a 83 year-old woman with capillary leak syndrome of the face characterized by recurrent episodes of edamata. We found a follicular non-Hodgkin's lymphoma and high levels of plasma interleukin (IL) 2 and IL 6. Regression of edema and remission of hematology disease have been obtained with corticoids and chloraminophene. DISCUSSION: This case illustrates that capillary leak syndrome may present as an edema of the face and may be in some cases considered as a paraneoplastic syndrome. The role of cytokines seems important. This case suggests that corticoids may be useful in the management of neoplasm induced capillary leak syndrome.

Aged↗
PubMed2000

[Anemia caused by vitamin B 12 deficiency in subjects aged over 75 years: new hypotheses. A study of 20 cases].

PURPOSE: New hypotheses have recently been developed on vitamin B12 deficiency and the frequently observed occurrence in the elderly subject of food cobalamin malabsorption, i.e., the non-dissociation of B12 and its carrier protein (ND B12), and the possibility of rectifying this imbalance by oral crystalline B12 supplementation. The aim of this study was therefore to confirm these hypotheses in a series of patients aged over 75 years with anemia due to B12 deficiency. METHODS: A retrospective study was carried out over a 5-year period on patients aged over 75 years presenting with megaloblastic anemia (hemoglobin [Hb] < 12 g/dL) and vitamin B12/cobalamin deficiency (B12 < 160 pg/mL). RESULTS: Twenty cases were analyzed. The average age of the patient population was 82.5 +/- 6 years, and the F/M sex ratio was 1:2. Mean Hb levels were 7.9 +/- 2.4 g/dL, mean serum B12 levels were 83 +/- 24 pg/mL, and mean homocysteinemic levels were 35 +/- 27 mumol/L. The diagnosis was as follows: food cobalamin malabsorption/ND B12 (n = 10), Biermer's disease/pernicious anemia (n = 5), malabsorption due to pancreatic insufficiency (n = 1), and low dietary B12 levels (n = 1). Disorders associated with ND B12 were: atrophic gastritis and Helicobacter pylori infection (n = 6), antacid or biguanide intake (n = 3), alcohol abuse (n = 2), or idiopathic syndrome (n = 2). In the patients who were followed up (n = 10), i.m. (n = 5) or oral (n = 5) administration of crystalline B12 resulted in the correction of hematological abnormalities. CONCLUSION: In the elderly subject, food cobalamin/ND B12 malabsorption appears to be the main cause of B12 deficiency, and is frequently associated with atrophic gastritis. In these cases, administration of oral crystalline B12 may be an efficient means of treating this disorder.

Aged↗
PubMed2000

[Unusual cause of chronic iron-deficiency anemia and insulin resistance: cholesterol embolism].

BACKGROUND: Cholesterol embolism disease (CED) is an extremely polymorphous clinical entity. Rare reports mention digestive or endocrine manifestations. CASE REPORT: A 73 year-old female patient developed CED disclosed by iron deficiency anemia with chronic digestive bleeding associated with major insulin resistance. DISCUSSION: Solitary iron deficiency anemia as the inaugural sign of CED is exceptional. Rare reports in the literature suggest it is related to polymorphous nonspecific lesions (ulcers, pseudotumoral lesions...) leading to chronic bleeding. Careful histopathology study of the lesions of fragments of healthy mucosa provides the correct diagnosis showing biconcave and optically empty slits. Insulin resistance has not been reported although prior diabetes is often mentioned as a predisposing factor for atherosclerosis. In our case, the role of CED was not determined, but pancreatic or inflammatory involvement can be envisaged.

Aged↗
PubMed2000

[Hypersensitivity syndrome : a rare but severe adverse effect of antithyroid drugs].

We report the case of a female patient with a severe hypersensitivity syndrome caused by carbimazole. She was treated for Graves' disease for a few weeks when she was referred for skin rash, increased liver enzymes and hypereosinophilia. No immunological abnormalities were detected. Discontinuation of carbimazole resulted in quick recovery. Pathogenesis of the hypersensitivity syndrome is discussed. Antithyroid drugs are rarely involved in the syndrome but cases with vasculitis have been described. In our patient, the role of excessive dose is possible.

Aged↗
PubMed2000

[Guillain-Barré syndrome and Mycoplasma pneumoniae infection].

Guillain-Barré syndrome subsequent to Mycoplasma pneumoniae is uncommon and difficult to confirm. We report one case. Clinical presentation and therapy were unremarkable. The interest of antibiotics (preventive or curative) is unresolved. The pathophysiology remains hypothetical but Mycoplasma pneumoniae and some surface gangliosides of peripheral nerves share homologous epitopes leading to the production of antibodies. Induced antibodies to ganglioside may cross-react with neural tissues.

Adolescent↗
PubMed2000

[Hypothalamo-pituitary-adrenocortical function during and after steroid therapy: recent data and critical review].

Prolonged corticosteroid treatment is considered to be the main cause of adrenal insufficiency (AI). AI is due to adrenal atrophy caused by the inhibition of ACTH secretion. Risk factors for AI after corticosteroid treatment remain unknown. Various functional tests, particularly the "standard" Synacthene 250 microg, demonstrate frequent abnormal responses in these patients. However, these abnormalities are not predictive of the risk of AI in particular in case of stress. More recent tests (CRH, "low dose" Synacthene) need to be further evaluated in this situation. Several recent studies in animals and in humans have demonstrated that the need for glucocorticoid coverage during a surgical stress has been greatly overestimated and that maintenance of the usual daily dose seems to be sufficient and safe in most patients with minor surgical stress. Revision of guidelines for more important surgical stress or for other medical conditions in patient treated with glucocorticoids is necessary.

Adrenal Cortex Hormones↗
PubMed1999

[Sepsis syndrome and bone marrow granulomatosis after intravesical instillation of BCG].

BACKGROUND: BCG therapy is an effective treatment for superficial bladder carcinoma. Exceptionally, systemic disorders including hypersensitivity reactions or infections may occur. CASE REPORT: A 70-year-old man developed septicemia with bone marrow granulomatosis with a favorable course after intravesicle administration of bacillus Calmette-Guérin for bladder carcinoma. DISCUSSION: High grade fever, septicemia, hepatitis or pulmonary granulomatosis as well as bone marrow involvement are reported in less than 1% of all cases of BCG therapy. The pathogenic mechanisms are complex. Anti-tuberculous drugs are generally given.

Administration, Intravesical↗
PubMed1999

[Veno-occlusive disease of the liver and POEMS syndrome].

BACKGROUND: Veno-occlusive disease of the liver is a common cause of morbidity and mortality after chemotherapy and/or radiotherapy and bone marrow transplantation. Non thrombotic hepatic venous obstruction is characteristic, but pathogenesis of this disease remains unknown. CASE REPORT: In june 1993, a 58-year-old man was treated by cyclophosphamide and steroid for a POEMS syndrome. In november 1996, he developed hepatalgia, edema, ascitis and jaundice. The diagnosis of hepatic veno-occlusive disease was obtained by hepatic biopsy. Refractory ascitis was treated by transjugular intrahepatic portosystemic shunt. Gradual improvement in clinical status was observed after this therapy. CONCLUSION: This observation offers three original types of information: there has been no prior report of an association between veno-occlusive disease and POEMS syndrome, the role of low dose cyclophosphamide in hepatic veno-occlusive disease was certain, transjugular intrahepatic portosystemic shunt is an interesting therapy with one years remission.

Cyclophosphamide↗
PubMed1999

[Paraneoplastic Cushing's syndrome and small cell bronchial carcinoma].

Approximately 30% of small-cell bronchogenic cancers are associated with hypersecretion of ACTH. However, in most cases, there is no clinical expression. When a paraneoplastic Cushing syndrome occurs, it is an independent factor of poor prognosis. Management is extremely complex. Treatment must be based on high dose inhibitors prior to chemotherapy. Opportunistic infections, often fungal infections, are the main complications, even outside periods of aplasia, and cause significantly earlier mortality.

Adrenocorticotropic Hormone↗