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Biomedical subjects

A Mollo

Publications and source records attributed to A Mollo.

34 records · Page 2Linked to original sources
PubMed1998

Effects of hormone replacement therapy on glucose metabolism.

OBJECTIVE: To evaluate the relationship between hormone replacement therapy and glucose metabolism, and the possible role played by the administration route. DESIGN: Prospective randomized study. MATERIALS AND METHODS: Eighty-four patients in either surgical or spontaneous menopause were randomly allocated into four groups: 15 patients in surgical menopause were treated with estrogens alone administered transdermically (17 beta-estradiol, 50 micrograms/day); 15 patients in surgical menopause were treated with oral conjugated equine estrogens (0.625 mg/day); 18 patients in spontaneous menopause were treated with transdermic estrogens plus oral progestagen (17 beta-estradiol 50 micrograms/day, acetate medroxyprogestogen 10 mg/day for 12 days per month); 16 patients in spontaneous menopause were treated with oral conjugated equine estrogens (0.625 mg/day) plus oral progestagen (10 mg/day for 12 days per month). Twenty patients not given any medication represented the control group. Before starting the trial and after six months of therapy, glucose and insulin levels before and after an oral glucose loading test were evaluated. Data analysis was performed by means of Student's "t"-test, ANOVA was used to compare mean levels between the groups. Significance was set at p < 0.005. RESULTS: Dosages made after 6 months of therapy showed comparable basal glucose levels in all the studied group, while basal insuline levels in patients taking estrogen alone were lower (76.88 +/- 23.66 vs 95.91 +/- 24.57 in group 1, 80 +/- 13.34 vs 96.91 +/- 18.97 in group 2) than pretreatment values. No significant difference in glucose levels was found after glucose load in the four groups. CONCLUSION. Women treated with estrogen alone have a tendency to a lower insulin response, which could indicate a greater insulin sensitivity. This effect seems to be more evident in transdermic administration than with oral administration. The addition of progestagen seems to wane the increase in insulin sensitivity induced by estrogens.

Administration, Cutaneous↗
PubMed1998

Preoperative GnRH analogue in hysteroscopic metroplasty.

OBJECTIVE: To evaluate the effectiveness of Gonadotropin-Releasing Hormone analogue when administered preoperatively in hysteroscopic metroplasty. DESIGN: Prospective, comparative study. PATIENTS AND MAIN OUTCOME MEASURES: Sixty patients undergoing hysteroscopic metroplasty for septate uterus who were randomly allocated to pretreatment with two injections monthly of Gonadotropin-Releasing Hormone analogue or to no pretreatment. To assess the outcome of surgery three parameters were used: operative time (minutes), fluid adsorption (ml) and intraoperative bleeding. RESULTS: No significant differences in the operating time (21.9 vs 22.9 min), fluid adsorption (395 ml, range 200-550 vs 515 ml, range 250-650), intraoperative bleeding and failure rate were found between pretreated patients and controls. CONCLUSIONS: Preoperative treatment with Gonadotropin-Releasing Hormone analogue showed no advantage in hysteroscopic treatment of mullerian defects, but only an improvement, not statistically significant, in term of reduced operative time and fluid adsorption.

Adult↗
PubMed1998

Tubal patency after laparoscopic treatment of ectopic pregnancy.

OBJECTIVE: To evaluate operative course, tubal patency and reproductive performance after laparoscopic treatment of ectopic pregnancy in relation to initial human chorionic gonadotropin (hCG) values and to the kind of operation. DESIGN: Retrospective study. PATIENTS: Fourty-five patients affected by ectopic pregnancies: thirty-two treated with laparoscopic linear salpingotomy subvided into two groups depending on the hCG serum values < 10,000 mUl/ml (twenty patients: group 1) or > 10,000 mUl/ml (twelve patients Group 2), thirteen patients (Group 3) undergoing laparoscopic salpingectomy. Hysterosalpingographic examination was performed two or three months after surgery. MAIN OUTCOME MEASURES: Operative time, major surgical complications, tubal patency and pregnancy rate after surgery. RESULTS: Operative time was significantly (p < 0.05) lower in both group 1 and 3 (22.5 +/- 3.2 and 19.1 +/- 6.3, respectively) than in group 2 (39.4 +/- 5.6). Bilateral patent tubes were observed in eighteen cases of group 1 (90%) and eight cases of group 2 (60%). No statistically significant differences were found between the pregnancy rate of both group 1 (8/18) and 2 (3/8) and of group 3 (3/11). CONCLUSIONS: Reproductive outcome is similar in both conservative and destructive laparoscopic management of ectopic pregnancy: furthermore it shows a trend of improvement, not statistically significant, in conservative treatment.

Chorionic Gonadotropin↗
PubMed1998

Time length of negativization of hCG serum values after either surgical or medical treatment of ectopic pregnancy.

OBJECTIVE: The aim of this study was to compare the time length until the human chorionic gonadotropin titer became negative after medical or surgical treatment of ectopic pregnancy. EXPERIMENTAL DESIGN: Prospective, randomized study. PARTECIPANTS AND INTERVENTIONS: We compared time to resolution in 30 cases of tubal pregnancies successfully treated, 15 underwent laparoscopic linear salpingostomy (group 1) and 15 medical treatment with single-ose methotrexate (group 2). The patients of both groups had no meaningful differences of age, gestational age and human chorionic gonadotropin mean values. MEASURES: During the follow-up human chorionic gonadotropin serum values were obtained every two days until the titer was negative. RESULTS: The time to resolution was 33.6 +/- 6.6 days in group 1, 31.5 +/- 7.8 in group 2 with no statistically meaningful differences. CONCLUSION: The data, comparable with results obtained by laparoscopic treatment, suggest that human chorionic gonadotropin value becomes negative independently of type of treatment and residual trophoblast.

Abortifacient Agents, Nonsteroidal↗
PubMed1997

The use of oxytocin for the reduction of cow placental retention, and subsequent endometritis.

Oxytocin was administered to reduce incidence of retained placenta and uterine infections that could delay subsequent conception. Three hundred and fifty multiparous Friesian cows, each with spontaneous delivery of a single calf were divided randomly into two groups. Some (n = 175) were injected with 30 IU of oxytocin immediately after delivery and again 2-4 h later, while the remainder formed an untreated control group. The placental retention 24 h after parturition was 24.6% and 10.9% in control and treated animals respectively (P < 0.01). Endometritis occurred in 51.6% of the animals following placental retention as compared to 10.4% of those with normal expulsion of the fetal membranes (P < 0.001). A comparison of reproductive indices showed a statistically significant improvement of fertility in treated cows with the average interval from calving to conception being reduced from 124.4 d to 93.7 d (P < 0.0001).

Animals↗
PubMed1997

In vitro fertilization following laparoscopic ovarian diathermy in patients with polycystic ovarian syndrome.

BACKGROUND: To evaluate the in vitro fertilization outcome in patients with polycystic ovarian syndrome previously treated by laparoscopic ovarian diathermy. METHODS: We designed a prospective study to compare in vitro fertilization stimulation parameters and pregnancy rate for two groups of women with polycystic ovarian syndrome. In the first group, we included 23 patients previously treated by laparoscopic ovarian electrodiathermy (group A), in the second group we included 36 women who did not undergo surgical treatment (group B). All patients underwent the same ovarian hyperstimulation protocol and a standard in vitro fertilization and embryo transfer technique. In a limited number of women (five in group A and eight in group B) we measured the levels of sex steroids in follicular fluid. Statistical analysis was performed by means of chi-square test or Fisher's exact test to compare frequencies and by means of the Student's t-test or ANOVA test to compare means. Significance was set at p < 0.05. RESULTS: In group A we found a significantly higher ongoing pregnancy rate (28.6% in group A vs 7.3% in group B), a significantly lower estradiol peak level (1722.73 +/- 522.24 in group A vs 2314.48 +/- 692.60 in group B), a trend for lower abortion rates and an improvement in the number of patients administered human chorionic gonadotropin than in group B. The levels of estradiol, testosterone and androstenedione in follicular fluid were significantly lower from small to intermediate and to large follicles in group A, while in group B only estradiol and androstenedione were different. Lower levels of androstenedione and testosterone were found in each follicular pool of group A, compared to the respective pool in group B. CONCLUSION: We report a significantly better ongoing pregnancy rate after in vitro fertilization and embryo transfer procedures in women pretreated by means of laparoscopic ovarian electrocautery. These results may be related to lower androgen levels in the follicular fluid.

Adult↗
PubMed1996

Reproductive outcome after hysteroscopic metroplasty.

OBJECTIVE: To evaluate the reproductive outcome after hysteroscopic metroplasty. STUDY DESIGN: We analysed the reproductive outcome of 69 patients, with different degrees of septate uterus, undergoing hysteroscopic metroplasty in the outpatient infertility clinic of Naples 'Federico II' University. Of the 69 patients, 48 had a history of recurrent abortion while 21 had a primary infertility. In all cases the procedure was performed by means of the resectoscope. RESULTS: In 97.1% of the cases post-operative hysterosalpingogram or hysteroscopic examination showed a normal cavity with a little fundal notch. In two cases, second surgery was needed. Of the 48 patients affected by repeated abortion, 40 became pregnant after the metroplasty whereas, to date, in the infertile group only six out 21 (29.0%) conceived. We observed a total of 46 pregnancies with two sets of twins. Of these, 31 pregnancies (67.4%) were carried to term, five (10.8%) ended in preterm delivery, six (13%) ended in spontaneous abortion and four (8.6%) are in progress. Cervical cerclage was performed on 13 women. Only one (7.6%) woman with cervical cerclage had a preterm delivery, while the preterm delivery rate in women without cerclage was 12.1%. The modality of term pregnancy deliveries was cesarean section in 48% of the cases and vaginal delivery in the 52%. CONCLUSIONS: Our data analysis suggest that the correction of mullerian anomalies does not improve the pregnancy rate, but only the pregnancy outcome of the patients.

Abortion, Habitual↗
PubMed1995

Short-term use of Goserelin depot in the treatment of dysfunctional uterine bleeding.

UNLABELLED: STUDY-PLAN: an open study aimed at evaluating the results of a short term therapy (3 months) with Goserelin depot as a medical treatment of premenopausal dysfunctional uterine bleeding. PATIENTS: 60 premenopausal women (aged 36-50) with dysfunctional uterine bleeding, presenting simple endometrial hyperplasia. RESULTS: after the treatment, spontaneous menstrual bleeding recurred in 57/60 patients, while 3/60 (5%) patients remained amenorrheal during the whole period of follow-up, showing a postmenopausal hormonal pattern. In the first post-therapy menstrual cycle all the 57 patients had a bleeding score < 100; patients relapsing during the second, third and fourth cycle were respectively 2/54 (3.7%), 5/48 (10.7%) and 17/38 (44.7%). The fourth post-therapy cycle was delayed 6-9 months after the last injection of Goserelin. Both the mean blood loss and the mean duration of bleeding were significantly reduced in all post-therapy cycles. Eleven patients were anaemic before therapy (Hb < 12 g%); Goserelin treatment resulted in a normalization of the hematological parameters. At the end of treatment a small area of hyperplasia persisted in only 4/60 patients (6.7%). Localised or diffused hyperplasia were found respectively in 5/54 (9.3%) and in 1/54 patients (1.9%) at three months, and in 5/48 (10.4%) and 4/48 (8.3%) at a six-month follow-up. Side effects were infrequent. CONCLUSIONS: the long symptom-free period and the low incidence of side effects indicates Goserelin depot as a valuable medical treatment for dysfunctional uterine bleeding.

Adult↗
PubMed1994

Acute postoperative block of mechanical prostheses: incidence and treatment.

Acute intermittent postoperative block of mechanical prostheses is a rare and life-threatening complication; its incidence and treatment are not well defined. Between January 1975 and June 1991, 2839 mechanical prostheses were implanted using the same technique: mattress suture for mitral valve replacement and simple suture for aortic valve replacement. Prosthetic block occurred in eight patients: four following mitral valve replacement and four after aortic valve replacement. The blocked prosthesis was always a tilting disc valve (five Sorin, two Björk-Shiley and one Medtronic). The event occurred over a time interval of 6-48 h (mean(s.d.) 17.3 (15.6)h). All patients having mitral valve replacement needed emergency prosthetic replacement. In aortic valve replacement, reoperation was necessary in two patients; the disc block disappeared in the others. All patients are alive with a follow-up ranging between 3 and 168 (mean 32.5) months. No structural failure was found in explanted prostheses leading to a diagnosis of extrinsic block. The overall incidence of this complication was 0.28% (eight of 2839); 0.24% (four of 1645) for mitral valve replacement and 0.33% (four of 1194) for aortic valve replacement respectively (n.s.). It was exclusively related to tilting disc valves (0.44%; eight of 1830) versus ball and bileaflets valve (0 of 1009). In mitral valve replacement reoperation on patients is mandatory; in aortic valve replacement patients the left ventricular pressure itself can overcome the prosthetic block. Attention should be paid to valve excision and suture techniques as tilting disc prostheses are more vulnerable to extrinsic block. Furthermore, their use is contraindicated in redo operations and mitral valve replacement with total or partial preservation of mitral apparatus.

Adult↗
PubMed1980

[Use of dynamic electrocardiography in the examination of the cardiovascular system in aviation medicine].

On the matter of psychophysical fitness to pilot a plane, stress is laid on those forms of arrhythmia with a pathological foundation, and the new prospects offered by dynamic ECG are indicated. Applied for a more or less lengthy time, the latter permits prolonged, more careful observation of cardiac function over a period of time. The results obtained are explained and the investigation technique is illustrated.

Adult↗
PubMedDate not supplied

[Biocompatibility of the acetate in the dialysis fluid].

PURPOSE: Dialytic vasculopathy is a major morbidity and mortality risk factor in patients undergoing chronic dialysis treatment. Among the pathogenetic factors some are related to the uremic condition, others are due to biocompatible reactions to dialytic materials. Endothelial cells (EC) are the target of the mediators released during bioincompatible reactions, and the related effects could be considered the initial event eliciting the vasculopathy pathogenesis. Among the others, we focused our attention on the role played in this process by the inducible isoform of nitric oxide (NO) synthase (iNOS). In previous studies we demonstrated that bioincompatible membranes, as well as acetate-containing dialysis buffers stimulate iNOS gene expression and activity in endothelial cells in culture. In this study, we planned to evaluate the potential role of a new dialysis buffer in which acetate has been substituted with HCl as a stabilizer. METHODS: ECs were incubated for 12 h at 37 degrees C with different dialysis buffers: acetate (Acet), standard bicarbonate (Bic), acetate-free buffer (AF) and HCl-bicarbonate (BicHCl). We evaluated in reverse transcriptase polymerase chain reaction (RT-PCR) the gene transcription for iNOS, the NOS activity (as the production of H3 citrulline from H3 arginine by ionic exchange chromatography), EC proliferative (H3 thymidine incorporation) and pro-apoptotic rate (TUNEL analysis) and the nuclear translocation of the transcriptional factor NF-kappaB (EMSA). RESULTS: Acetate, even in the low concentration present in Bic was able to induce a significant iNOS gene transcription (results expressed as relative units and referred to basal values: Acet 1.9 +/- 0.01 fold increase, p<0.01; Bic 1.45 +/- 0.03 p<0.05; BicHCl 1.24 +/- 0.01; AF 1.17 +/- 0.02) and translation. Acetate at concentrations both of 3 mmoL and 38 mmoL (present in the bicarbonate buffer) significantly increased the enzymatic NOS activity vs unconditioned ECs: Acet 3.46 +/- 0.3, p<0.0005; Bic 1.69 +/- 0.2, p<0.005; BicHCl 1.24 +/- 0.15; AF 1.17 +/- 0.05. The EC proliferative index was significantly depressed by acetate containing dialysis buffers (unconditioned ECs 100%, Acet 38 +/- 15%, p<0.01; Bic 65 +/- 6%, p<0.05; AF 87 +/- 8%; BicHCl 75 +/- 6%). The percentage of apoptotic ECs was significantly increased by buffers contain-ing Acet vs BicHCl and AF. Finally, acetate at the concentrations present in Acet and Bic activated and promoted the nuclear translocation of the transcriptional factor NF-kappaB in ECs (p<0.01 vs unconditioned cells). CONCLUSIONS: The acetate-free dialysis buffers have better biocompatibility and potentially down-modulate the flogistic and sclerotic processes responsible for dialytic vasculopathy.

Acetates↗
PubMedDate not supplied

The use of GnRH agonists depot for the treatment of dysfunctional uterine bleeding.

The Authors report their experience with the use of GnRH analogue (Goserelin) in 35 women with abnormal uterine bleeding due to low-risk hyperplasia of the endometrium. A hysteroscopic and histopathological follow-up was performed at 2 months and 6 months after treatment. The results show a significantly effectiveness of Goserelin in treating dysfunctional uterine bleeding.

Adult↗