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Biomedical subjects

C Ene

Publications and source records attributed to C Ene.

13 recordsLinked to original sources
PubMed2003

Comparative cytogenetics and chromosomal characteristics of ribosomal DNA in the fish genus Vimba (Cyprinidae).

Karyotypic and cytogenetic characteristics of Vimba vimba and V. elongata were investigated using differential staining techniques (sequential C-banding, Ag- and CMA3-staining) and fluorescent in situ hybridization (FISH) with 28S rDNA probe. The diploid chromosome number in both species was 2n = 50 with 8 pairs of metacentrics, 14 pairs of submetacentrics to subtelocentrics and 3 pairs of subtelo- to acrocentrics. The largest chromosome pair of the complements was characteristically subtelo- to acrocentric. The nucleolar organizer regions (NORs) in both species were detected in the telomeres of a single, middle-sized subtelocentric chromosome pair, a pattern common in a number of other Leuciscinae. FISH with rDNA probe produced consistently positive hybridization signals detected in the same regions indicated by Ag-staining and CMA3-fluorescence. The distribution of C-positive heterochromatin was identical in both species, including a conspicuous size polymorphism of heterochromatic blocks in the largest metacentric and subtelo- to acrocentric chromosomal pairs. No heteromorphic sex chromosomes were detected. A single analyzed individual of V. melanops possessed the same karyotype and NOR phenotype as V. vimba and V. elongata. The apparent karyotype homogeneity and chromosomal characteristics of ribosomal DNA in all three species of the genus Vimba is consistent to that found in most other representatives of the European leuciscine cyprinid fishes.

Animals↗
PubMed1990

Jejunal-rectal fistula as a complication of postoperative radiotherapy.

We present the case of a patient with an unusual, complex enteric fistula with multiple tracts and associated abscesses. The fistula was a late complication of radiotherapy, administered three years earlier, after resection for carcinoma of the sigmoid colon. Most of the small bowel was involved in the radiation-induced disease. A wide resection was performed successfully. This report reviews current literature on intra-abdominal postradiotherapy injuries, particularly intestinal fistulae.

Combined Modality Therapy↗
PubMed1982

[Subarachnoid anesthesia with pethidine].

The authors present their experience about spinal anesthesia with pethidine as the sole medication. 713 patients whose mean age was 56.5 years received 1 mg . kg-1 of pethidine in 50 p. 100 aqueous solution administered by subarachnoid route. Indications were surgical procedures involving upper and lower abdomen, perineum and lower limbs. The set up of anesthesia is quite similar to those obtained with local anesthetics. Sensitivity disappears during the first three minutes in the area below the puncture site and in the following two or three minutes areflexia and paralysis is noted. The duration of the motor and sensory block is 90 to 120 minutes. Recovery appears to be in a reverse order. Spinal anaesthesia with pethidine exhibit the following characteristics: --sensory and motor blockade with minimal adverse reactions giving good and very good results in more than 90 per cent of cases, when involving perineum and lower limbs; --the most frequent adverse effect is a syndrome including hypotension, bradycardia and hypoxemia, appearing 20 to 30 minutes after injection, reversal is easily obtained by administration of pressure drugs and artificial ventilation. Neither delayed respiratory depression nor neurologic damage were noted; --a long lasting post-operative analgesia. In conclusion, this work demonstrates that: --1 mg . kg-1 of pethidine administered by subdural route realize a complete spinal anesthesia including motor, sensory and sympathetic blockade allowing surgical procedures in good conditions of security; --increasing the dosage of pethidine over 1 mg . kg-1 is not wise in order to avoid the occurrence of adverse side effects such as hypotension, bradycardia and bradypnaea; --this technic is only indicated for surgery in perineum and lower limbs.

Adolescent↗
PubMedDate not supplied

[Hyperlipoproteinemia, a factor of severity in acute pancreatitis].

The authors make a retrospective analysis of 95 cases of acute pancreatitis hospitalized between 1975 and 1979. In 3,8% of all the cases the acute pancreatitis was associated with hyperlipoproteinemia. The study of the 4 patients involved revealed the primary origin of hyperlipoproteinemia as a result of alimentary abuse in 3 of the cases. In a fourth case the increased serum lipoproteins were due to prolonged use of contraceptives. From the clinical viewpoint, pancreatitis associated with hyperlipoproteinemia was more severe, with signs of shock and collapse, respiratory failure, high serum nitrogen an hyperglycemia. The blood and the serum had a lactescent aspect, with a thick layer of chylomicrons. The serum and blood values for lipids were higher than 4000 mg%. The increase in the amount of lipids was especially due to high triglycerides values. From the anatomopathologic viewpoint the 4 patients presented as acute cases of cholecysto-pancreatitis with major and extensive haemorrhagic necrosis which involved almost the entire pancreas. The evolution of the four patients was difficult. Two of the patients recovered after a long hospitalization, and had definitive sequels - insulin-dependent diabetes. The other two patients died following septic complications (bronchopneumonia and visceral gangrene), and hypovolemia due to upper digestive haemorrhage.

Acute Disease↗