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Biomedical subjects

J Reiffers

Publications and source records attributed to J Reiffers.

At least 325 records · Page 18Linked to original sources
PubMed1980

Platelet dense bodies loaded with mepacrine. Study in chronic idiopathic thrombocytopenic purpura (ITP).

In 22 cases of chronic ITP, the platelet 5-HT storage organelles were counted by examination of platelets loaded with mepacrine and correlated with the size and volume of the platelets. Statistical analysis showed that the mean volume and the number of granules increased in ITP without increase in the mean number of granules per unit volume. A strong correlation was found between platelet long diameter and number of dense bodies in controls (44 healthy subjects) (r = 0.94; y = 2.826 x - 0.699) and in ITP (r = 0.92; y = 2.587 x + 0.06). This study demonstrated in chronic ITP the presence both of platelets without granules and others rich in granules. The anomalies were present no matter what the count of platelets and did not change the mean values for granules and for ADP in most cases. Most platelets remain morphologically normal.

Adenosine Diphosphate↗
PubMed1980

Acute myeloblastic leukemia in elderly patients: treatment and prognostic factors.

The results of treatment of acute myeloblastic leukemia in patients over 60 years of age are evaluated in a retrospective study of 29 previously untreated patients. These results were very similar to those observed for younger patients, with 18 complete remissions (62, 1%), 6 early deaths, and 5 treatment failures. The median survival time was seven and one half months for all patients and 22 for the 18 patients achieving complete remissions. Nineteen patients received chemotherapy identical to that of younger patients (daunorubicin and cytarabine). The initial presence of poor prognostic factors (hyperleukocytosis, and infection) may explain the relativity high number of early deaths (21%). Elderly patients are apparently not exposed to a higher risk of death than younger patients. Daunorubicin toxicity does not appear to increase with age and this agent may therefore be used in the treatment of older patients.

Aged↗
PubMed1980

[Acute granulocytic leukaemia: prognostic value of medullary caryotype (author's transl)].

Thirty-nine cases of granulocytic acute leukaemia (AL) forming an homogeneous series were the object of a satisfactory chromosomal examination of the marrow by direct examination at the time of diagnosis. This group of patients was compared with another group of similar number where the conditions of patient referral, diagnosis and treatment were the same, in order to show that no selection was involved in the series studied. Medullary caryotype was found to be normal in 61,5% of cases. In such patients, the hope of complete remission and mean survival were significantly better than in cases where the caryotype was abnormal, and all the more so when the caryotype contained abnormalities in all the mitoses examined. For myeloblastic AL, the correlation between caryotype and the effects of treatment is very close (p less than 0,01). For the therapist, these results justify a new approach in the treatment of myeloblastic AL.

Adolescent↗
PubMed1979

[Acute leukaemia with lymphoblastic features occurring during myeloma (author's transl)].

Leukaemias which complicate myeloma under treatment are usually acute non-lymphocytic leukaemias. We report here a case of acute leukaemia with lymphoblastic features occurring 30 months after diagnosis of myeloma. The exceptional character of this association lead us to refine the cytological diagnosis by studying surface markers and ultrastructural cytochemistry. Because of the absence of T or B markers, and the absence of peroxidase activity in the nuclear envelope, the endoplasmic reticulum, and the Golgi apparatus of blastic cells, we conclude that this leukaemia is "null" lymphoblastic.

Acute Disease↗
PubMed1977

[Cutaneous side-effects of treatment with lithium (author's transl)].

This paper describes the cutaneous side-effects which appeared in 5 patients under Lithium medication for manic-depressive disease: 2 cases with facial and dorsal acne, 1 case with generalized pruritus with burning sensations on the tongue and tumefaction of the lips, 1 case with endogenous generalized psoriasis and 1 case with palmo-plantar hyperkeratosis, ichthyosis and associated with euthyroid goitre. The lithium content of the tissues was assayed by flame spectrophotometry of calcinated biopsy material taken from the epidermis, the dermis and the subcutaneous adipose tissue from 4 of our 5 cases. An experimental investigation was carried out in guinea pigs fed with lithium salts during 6 months. The cation was assayed in samples of epidermis, dermis and perirenal adipose tissue. A study of the accumulation of lithium in epidermal, dermal and adipose tissue is thus added to the studies already published regarding the accumulation of this ion in other tissues.

Acne Vulgaris↗