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Biomedical subjects

P Cros

Publications and source records attributed to P Cros.

At least 37 records · Page 2Linked to original sources
PubMed1991

In situ evaluation of the ruminal and intestinal degradability of extruded whole horse beans.

Four rumen and proximal duodenum fistulated non-lactating Holstein cows were used to determine the effect of extrusion at 120 degrees C of whole horse beans (Vicia faba cv Talo) on in vitro nitrogen (N) solubility and in situ degradation of dry matter (DM) and crude protein (CP) in the rumen and intestine. Cows were fed a ration of 30% whole horse beans (WHB) and 70% Italian rye-grass hay. The degradation of DM and CP was estimated using nylon bags suspended in the rumen for 2, 4, 7, 16, 24 and 48 h; the effective ruminal degradability of DM and CP was evaluated assuming a ruminal outflow rate of 0.06/h. Bags incubated in the rumen for 16 h were introduced into the small intestine through the duodenal cannula and subsequently recovered in the feces. Extrusion of WHB reduced N-solubility in buffer solution (21.1 vs 74.9%). Processing diminished the effective rumen degradability of DM (74.6 vs 80.4%) and CP (70.2 vs 89.2%). Meanwhile, the amounts of DM and CP digested in the intestine increased: 9.6 vs 1.4% and 25.2 vs 3.0% respectively. Therefore, feeds containing extruded WHB increase the availability of dietary proteins in the intestine compared with diets containing raw WHB.

Animal Feed↗
PubMed1991

In situ evaluation of the ruminal and intestinal degradability of extruded whole lupin seed nitrogen.

The effect of whole lupin seeds (Lupinus albus cv Lublanc) at 120, 150 and 195 degrees C on in situ nitrogen degradability (Dg.N) was measured by the nylon bag technique using fistulated non-lactating Holstein cows. The N degradation was evaluated in nylon bags suspended in the rumen; heating the seeds at 120, 150 and 195 degrees C decreased the Dg.N value: 83.9, 72.9 and 53.0 respectively vs 95.3% (rumen outflow rate of 0.06/h). To estimate the total N disappearing in the digestive tract, bags were incubated in the rumen for 16 h, then in a pepsin bath for 2 h and then introduced into the duodenum for subsequently recovery in feces. The whole tract degradability of N was always high, approximately 98.3%. The amounts of N which disappeared in the intestine increased from 3.1 (untreated seeds) to 15.1, 26.3 and 44.7% as the temperature rose to 120, 150 and 195 degrees C respectively. The PDIN and PDIE contents (g/kg of DM) of the raw whole lupin seeds were 224 and 84 respectively; extrusion elevated these values by 10-32% for PDIN and 57-194% for PDIE. The augmentation in the supply of dietary proteins to the postruminal parts as a result of extrusion could rapidly benefit high yielding cows.

Animal Feed↗
PubMed1991

[Medicolegal considerations. Apropos of tooth germ transplantation between 2 twins].

With regard to medicolegal problems, semantics are of considerable importance: indeed, depending on whether we call grafting or transplantation of an organ the operation that takes a living organ to reimplant it in the same person or the operation that takes a living organ from a donor to reimplant it in a recipient, the issues raised are completely different. The transposition of a dental organ does not raise any particular problems apart from the technical requirements to be met; there is no special problem of prevention or ethics to be taken into consideration. The problem is a completely different one when it means taking a living organ from a living or dead subject and reimplanting it in another subject. All measures decreed from the point of view of law and regulations that are dictated by considerations of prevention and ethics must then be strictly applied.

Expert Testimony↗
PubMed1989

[15 years of treatment of temporomandibular joint algo-dysfunctional syndromes].

For more than 15 years, the maxillo-facial and stomatological center in Lyon has received approximately 100 cases of T.M.A.D.S. per year. The etiological basis of the symptomatology is muscular dysfunction due to malocclusion variable degree and duration. Simple radiological investigations complete the examination. Treatment aims at correcting the malocclusion, either by simple methods: dental occlusion and prosthesis, or by orthognathic orthodontic and surgical techniques. Surgery involving the temporo-mandibular joint is reserved for rare cases of condylar deformation which is often post-traumatic. Favorable results can be obtained in 85% of cases.

Adult↗
PubMed1987

[The temporal muscle flap and palatal repair].

Two edentulous elderly women presented with benign but extensive tumors of middle third of face. The excision necessary for reasons of comfort and hygiene could not be envisaged unless the ineluctable vast palatine breach opened could be immediately repaired by surgery, any prosthetic solution being excluded. The use of a total temporal muscle flap, without zygoma section, provided an effective and comfortable solution to this both delicate and unusual problem. These cases illustrate the interest in the use of temporal muscle flaps in maxillofacial surgery, and their management for the repair of large palatine breaches.

Aged↗
PubMed1987

[Histiocytosis X of the jaws. Apropos 5 cases].

Principal features of histiocytosis X are discussed in relation to 5 cases treated in the department. Clinical signs are known. Bone scintiscans are of importance for evaluation of extension of the disease. Surgical treatment is the rule until more effective therapy becomes available and has a diagnostic rather than curative aim. The major problem remains the progressive dental mutilation.

Adult↗
PubMed1986

[Possibilities and limitations for the correction of bony, dental and mucosal tissue loss in children using a maxillofacial prosthesis].

The maxillofacial prosthesis for surgical treatment of loss of bony, dental or mucosal substance in children has the advantage of allowing postponement of therapy until growth is terminated or any other favorable period. In addition, the temporary reconstitutions possible by their use often provide, apart from esthetic results, an effective action physically and mentally on the mainly labile growth.

Child↗
PubMed1985

[Value of Tissucol in dentistry and maxillofacial surgery].

Fibrinogen glue of human origin was used in 44 patients. Indications are of two types: as a glue mainly for dermoepidermoid grafts but also to assist mucosal suturing and bone obturation, and for hemostasis after extractions in patients with coagulation disorders (hemophilia, cirrhosis, leukemia). Positive results were obtained, particularly in hemophilic patients, the incidence and severity of secondary hemorrhage appearing to diminish.

Drug Combinations↗
PubMed1984

[The stomatological complications of Steinert's disease. Apropos of a case].

Steinert's disease is a myotonic dystrophy associated with diffuse visceral involvement. A severe hereditary disorder, it is characterised from a maxillo-facial standpoint by a special dysmorphism which the authors emphasize in the light of one case. They then suggest that a wider study of this condition might be envisaged.

Adolescent↗
PubMed1984

[Double cogenital nasopalatine fistula behind the central and lateral incisors].

A 26-year-old man presenting no clinical manifestations apart from the intermittent flow of nasal secretions into the mouth was found to have a double fistulous tract at the level of the upper central incisors. Fistulography confirmed the presence of a fistula. The nosological place of this congenital lesion remains to be defined.

Adult↗
PubMed1983

[Diagnosis and therapy of temporomandibular dysfunctions. The experience of the Clinique de Stomatologie et de Chirurgie Maxillo-Faciale de Lyon].

Temporomandibular dysfunction is a relatively frequent disorder, affecting mainly young women, that remains a poorly recognized entity. Clinical symptoms usually associate pain and cracking of the jaw, frequently accompanied by limitation of opening of the mouth. Occlusal injury is the cause of the dysfunction in every case. Two panoramic radiographs, one in the usual terminal occlusion and the other with the mouth open, provide evidence of the amount of condylar movement and the morphology of the condyles. Active mandibular movements provide muscular re-education. The inhibitors of occlusion (palatine plate to increase incisor elevation or covering plate) have the objective of reducing muscle spasm. Treatment of the cause of the disorder is based on occlusal rehabilitation, surgery of the temporomandibular joint being doomed to failure as it attacks the consequences and not the origin of the occlusal dysfunction.

Dental Articulators↗
PubMed1982

[Visor osteotomy of the mandible in edentulous patients].

The use of a sliding osteotomy to reconstruct an incisive block on an edentulous mandible was first described by Frans Harle in 1975. Employed in cases of a flattened widened mandible, when bone material is still present, it supplies an elegant solution to the problem of the anterior stability of inferior total prosthesis. Results of the use of this technique are reported. The problem of the mucoperiosteal cover of the graft after it is slid above the bone base left in place was resolved by performing, with the true osteotomy, a mucous sliding graft completed by a thin skin graft. A slightly different sliding osteotomy is also proposed, in which the mandibular graft is slid in the inverse direction, thus partially correcting the false prognathism of the edentulous patient.

Humans↗