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Biomedical subjects

S Taranto

Publications and source records attributed to S Taranto.

7 recordsLinked to original sources
PubMed2003

Effect of collection rhythms and season on rabbit semen production.

The effects of collection regimen and time of year on rabbit semen production were determined in this study. A total of 14 crossbreed Hyla bucks were used in winter and summer. In each season, rabbits were assigned to two groups. In group 1, (n = 7) rabbits were subjected to an extensive collection regimen (two ejaculates per male, once daily/week) and in group 2, (n = 7) a semi-intensive semen collection regimen was performed (two ejaculates per male, twice weekly). The traits recorded for each sample were libido, volume, pH, motility, sperm concentration, percentage of alive spermatozoa and sperm abnormalities. The results obtained in this study indicate that when increasing collection frequency, the rate of useful collections decreased (from 0.81 +/- 0.017 to 0.69 +/- 0.016; p < 0.01). The rate of useful collection also decreased in the transition from winter to summer (from 0.79 +/- 0.018 to 0.70 +/- 0.017; p < 0.01). Among the ejaculate characteristics studied, only volume/ejaculate (from 0.64 +/- 0.015 to 0.53 +/- 0.017; p < 0.01) and spermatozoa/ml (from 406 +/- 15 to 359 +/- 13 million; p < 0.01) appeared negatively affected by collection. In winter fewer volume/ejaculates were produced (0.55 +/- 0.015 vs 0.60 +/- 0.016 ml; p < 0.01) and fewer spermatozoa/ml (360 +/- 14 vs 394 +/- 16 million; p < 0.01) than in summer. The doses produced per ejaculate decreased as collection frequency increased, but the number of doses produced per week was higher in the semi-intensive than the extensive rhythm (26.5 +/- 2.1 vs 20.9 +/- 1.5; p < 0.01). The results suggest that a semi-intensive rhythm may be viewed favourably.

Animals↗
PubMed2001

Transplantation of hepatitis C-positive livers in hepatitis C-positive patients is equivalent to transplanting hepatitis C-negative livers.

A significant number of patients with end-stage liver disease secondary to hepatitis C die of disease-related complications. Liver transplantation offers the only effective alternative. Unfortunately, organ demand exceeds supply. Consequently, some transplant centers have used hepatitis C virus-positive (HCV(+)) donor livers for HCV(+) recipients. This study reviews the clinical outcome of a large series of HCV(+) recipients of HCV(+) liver allografts and compares their course with that of HCV(+) recipients of HCV-negative (HCV(-)) allografts. The United Network for Organ Sharing Scientific Registry was reviewed for the period from April 1, 1994, to June 30, 1997. All HCV(+) transplant recipients were analyzed. Two groups were identified: a group of HCV(+) recipients of HCV(+) donor livers (n = 96), and a group of HCV(+) recipients of HCV(-) donor livers (n = 2,827). A multivariate logistic regression model was used to determine the odds of graft failure and patient mortality, and unadjusted graft and patient survival were determined using the Kaplan-Meier method. There were no differences in demographic criteria between the groups. A greater percentage of patients with hepatocellular carcinoma received an HCV(+) allograft (8.3% v 3.1%; P =.01). Patient survival showed a significant difference for the HCV(+) group compared with the HCV(-) group (90% v 77%; P =.01). Blood type group A, group B, group O incompatibility was significant, with 4.2% incompatibility in the HCV(+) group and only 1.3% in the HCV(-) group (P =.04). Donor hepatitis C status does not impact on graft or patient survival after liver transplantation for HCV(+) recipients. Their survival was equivalent, if not better, compared with the control group. Using HCV(+) donor livers for transplantation in HCV(+) recipients safely and effectively expands the organ donor pool.

Female↗
PubMed1999

Impact of segmental grafts on pediatric liver transplantation--a review of the United Network for Organ Sharing Scientific Registry data (1990-1996).

PURPOSE: The aim of this study was to assess the relative impact of segmental grafts from cadaveric and living donors on outcomes in 3,409 pediatric transplants (<18 years) between 1990 and 1996. METHODS: Analysis of the United Network for Organ Sharing (UNOS) Scientific registry data from 1990 to 1996 was performed. RESULTS: Liver grafts consisted of 2,636 whole grafts (WLG), 246 liver donor grafts (LDG), 89 split liver graft (SLG), and 438 reduced-size grafts (RSG). Although the number of pediatric transplants were unchanged between 1990 and 1996, segmental grafts made up an increasing proportion from 14.5% to 29.2%, and WLG decreased proportionately. The increase among segmental grafts occurred for LDG (threefold), followed by SLG (53%) and RSG (50%). One-year graft and patient survival rates for 3,409 transplants were 69.7% and 81.9%, respectively and were significantly higher (P<.001) in nonhospitalized patients than in hospitalized patients (79.8% and 91.3% v 61.0% and 73.7%). LDG graft survival (75.9%) was comparable with WLG(70.9%) but significantly better at 1 year than SLG (60.3%, P = .007) and RSG (61.1%, P = .001), even after excluding retransplants and ICU patients. Patient survival rates were not different statistically between groups. A separate analysis of outcomes in recipients less than 1 year of age suggested significantly better graft and patient survivals for LDG (83.3% and 89.4%) than for WLG (62.3% and 76.5%) and RSG (62.7% and 75%). CONCLUSIONS: Segmental liver grafts from cadaveric and living donors constitute an increasing proportion of pediatric transplants. Survival rates of cadaveric segmental graft are inferior to those of live donor segmental grafts even after adjustment for medical condition. Live donor grafts demonstrate consistently superior graft and patient outcomes in pediatric recipients less than 1 year of age, and should be promoted aggressively as a solution to the critical shortage of size matched grafts in small recipients.

Age Factors↗
PubMed1991

[The diabetic foot].

The rise in the mean age and the increase in diabetes have frawn the surgeon's attention to gangrene of the lower limb which requires a multidisciplinary approach (doctor, surgeon, prosthesis specialist). Contrary to the concept of high thigh amputation, the possibility of carrying out a lumbar sympathectomy has encouraged the idea of a more distal amputation with conservation of physiological joints and an early recovery of function thus enabling patients who would otherwise have been condemned to permanent invalidity to return to social life.

Diabetic Angiopathies↗
PubMed1990

[Felder's intervention in the posphlebitic syndrome of the lower limbs].

Postphlebitic syndrome of the lower limbs is a consequence of chronic varices or the outcome of TVP leading to edema, eczema, stasis ulcers, etc. In these cases surgical treatment takes the form of ligating the perforating varices using a subfascial route according to Linton's technique, together with stripping the great and small saphenous vein. There are cases, however, in which the extent of cutaneous involvement does not allow a "safety incision" to be made. Felder's operation, using posterior surgical aggression in that area of the skin which generally remains healthy, therefore allows an easier ligation of the perforating varices and quicker cutaneous healing.

Adult↗
PubMed1983

[Papilloma of the gallbladder].

Gall-bladder papilloma, although rare to be found, should be considered as a precancerous lesion, the sole treatment of which is the surgical one. The authors, starting from three cases of such pathology, they had the opportunity to observe, deal with histogenesis, symptomatology and treatment of such disease, and indicate the possibility for a careful diagnosis through the modern diagnostical means.

Adult↗