PubMed Health⌕ Search

Biomedical subjects

T Galli

Publications and source records attributed to T Galli.

52 records · Page 3Linked to original sources

Respective contributions of neuronal activity and presynaptic mechanisms in the control of the in vivo release of dopamine.

Studies performed in several in vivo and in vitro conditions have demonstrated that the release of dopamine from nerve terminals of the nigrostriatal dopaminergic neurons depends not only on the activity of dopaminergic cells but also on presynaptic regulations by heterologous fibers. The presynaptic facilitation of dopamine release by the cortico-striatal glutamatergic neurons has been particularly investigated. A quisqualate/kainate receptor subtype is involved in the direct (tetrodotoxine-resistant) presynaptic regulation of dopamine release by glutamate. The respective roles of presynaptic events and nerve activity in the control of dopaminergic transmission are discussed.

Animals↗

[Primary neoplasms of the gallbladder. Remarks on a case series].

Data relating to a series of 22 patients suffering from primary gallbladder cancer are reported. In 8 cases the condition was benign, in 14 malignant. In 21 cases, concomitant presence of gallbladder calculosis was encountered. Survival in patients with gallbladder carcinoma was poor and significant in only 2 cases in which the tumour was observed at a non-advanced stage.

Adult↗

[A case of hydrosalpinx permagna].

A case of hydrosalpinx permagna with liquid content of fully 22 litres is reported. Historical and objective data are illustrated together with the operation performed, the postoperative course, follow-up and discussion of the case.

Adult↗

High-dose neuroleptics: uncontrolled clinical practice confirms controlled clinical trials.

The strategy of high-dose intramuscular haloperidol as routinely applied in a general hospital psychiatric ward to 74 successive patients, 33 of whom stayed only up to seven days, and a further 34 up to 15 days, led to a complete recovery in only six, and complete lack of change in 23. Adverse reactions were recorded in 42, severe enough to stop treatment in eight; there were three deaths. In view of this risk-benefit analysis, systematic application of this high dose strategy to get a more rapid turnover of patients is unjustified.

Adolescent↗

An experimental animal model of intestinal obstruction to simulate in utero therapy for jejunoileal atresia.

OBJECTIVE: To obtain 'intestinal atresia-like' conditions in the fetal lamb model to subsequently allow in utero surgical repair. METHODS: Six time-dated pregnant sheep underwent general anesthesia at 75 days of gestation (term 145 +/- 5 days). After maternal laparotomy and hysterotomy, the fetal abdomen was opened. Once the jejunoileal intestinal loop was identified, the mesenteric vessels were isolated, ligated, and sectioned in 2 fetuses, and in the remaining 5 fetuses the bowel loop was ligated. Two further fetuses were used as controls and underwent sole laparotomy. Of the group of 7 fetuses 2 were reoperated at 100-105 days of gestational age and underwent intestinal recanalization. Eight fetuses were delivered at term by cesarean section and the remaining 1 by spontaneous delivery. One newborn underwent neonatal entero-enteric anastomosis. RESULTS: 4 out of 6 fetuses survived, in utero intestinal or vascular ligation having provoked an 'intestinal atresia-like' picture. The animal operated at birth died. The 2 control fetuses and the 2 fetuses with in utero intestinal recanalization survived until term. CONCLUSION: The present study shows that in utero treatment of intestinal obstruction is possible in an experimental model.

Animals↗

Sentinel lymph node identification in breast cancer: feasibility study.

The aim of the study was to evaluate in our institute the technique of sentinel node (SN) identification and biopsy in the surgical treatment of early breast cancer. Between June 1998 and November 1999 54 patients (age range, 31-75 years) where studied. Inclusion criteria were age less than 75 years, indication for conservative surgery, absence of palpable axillary nodes, Karnofksy index >70. Lymphoscintigraphy was performed 16-18 hours prior to surgery, following injection of 0.1-0.2 mL of 99mTc-Nanocoll: the administered activity was 3-4 MBq in group A (44 pts) and 7-8 MBq in group B (10 pts). The colloids were administered by transdermal supralesional injection in 49 patients with palpable nodules and by intraparenchymal ultrasound-guided injection in five patients with non-palpable nodules. Planar projections were performed starting from the 5th until the 80th min (or 180th in the event of late migration). In 10 patients further projections were acquired 14-18 h following tracer administration. All nodes identified by gamma probe (MR 100 Pol.Hi.Tech) were histologically evaluated by immunohistochemistry and standard histology. Scintigraphic visualization of the SN was obtained in 49 patients: in 38 of these patients there was only one SN while in 11 patients there were two or three SNs. The delayed scan made in 10 patients did not show any further nodes. In all patients given US-guided perilesional injections migration was late (after at least 60 min). Our study confirms the validity of the scintigraphic procedure, its safety for patients and health care workers, and the feasibility of interdisciplinary collaboration.

Adult↗