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Biomedical subjects

C Campobasso

Publications and source records attributed to C Campobasso.

At least 19 recordsLinked to original sources

nm23 expression in malignant ascitic effusions of serous ovarian adenocarcinoma.

The aim of this study was to evaluate nm23 expression as detected in malignant cells of neoplastic ascites and to verify its relationship with the presence of tissue nm23 and p53 in primitive neoplasia. Using an immunocytochemical assay with a specific anti-nm23 polyclonal antibody, nm23 expression was evaluated in ascitic effusions of 45 patients with ovarian serous adenocarcinoma and ascites in normal and/or hyperplastic mesothelial cells from 37 women with various neoplasms (12 ovarian neoplasms) free of malignant cells as controls. nm23 and p53 tissue expression was also detected in 21 corresponding tumor samples, including 11 bilateral lesions. nm23 was expressed in 57% of malignant effusions compared to 43% in controls: the two groups were not correlated. nm23 in effusions agreed with tissue expression (p=0.02) but a direct correlation was not demonstrated. The incidence of nm23 was more frequent in stage III than in stage IV disease (p=0.08) and was associated with mutated p53 expression (p=0.01). Using the Wilcoxon test for unpaired data, a higher incidence (p=0.05) of p53-positive tumors in bilateral cancers was found while a higher expression of nm23 in effusions of patients with monolateral lesions was observed (p=0.08). The presence of p53 was correlated with that of nm23 in both cytologic (p=0.005) and histological samples (p=0.01). Our findings, together with the diversity in biological behaviour present in various tumors, suggest that nm23 is a family of genes with differing biological functions which act as tumor-specific inhibiting factors within a complex process also involving other genes. Due to the analogies and correlations between nm23 and p53, the role of nm23 as a potential predictive factor of response to chemotherapy and in DNA repair is emphasized.

Aged↗

Antagonistic effects of FR 173657 on human, pig, rabbit, and guinea pig kinin receptors: an in vitro study.

The pharmacodynamic features of the new nonpeptide kinin B2 receptor antagonist FR 173657 were evaluated on pig, rabbit, guinea pig, and human native kinin B2 receptors. FR 173657 exerted high antagonistic activity in all preparations examined. In particular, it acts as a competitive antagonist in the rabbit jugular vein (pA2 8.9) and in the human umbilical vein (pA2 8.2) but as a noncompetitive antagonist in the pig coronary artery (pKB 9.2) and in the guinea pig ileum (pKB 9.2) stimulated with the selective B2 receptor agonist bradykinin (BK). In contrast, FR 173657 failed to antagonize the biological effects of the selective B1 receptor agonist LysdesArg9BK in the pig renal vein, rabbit aorta, and human umbilical vein, three kinin B1 receptor systems. Moreover, this compound was inactive against the effects induced by noradrenaline, 5-hydroxytryptamine, endothelin-1, angiotensin II, substance P, acetylcholine, and histamine in the B2 receptor preparations. Taken together, these results demonstrate that FR 173657 is the first potent nonpeptide B2 receptor antagonist with high affinity, selectivity, and specificity for kinin B2 receptors of different species, including man.

Adult↗

Sequential addition of low dose of medrogestone or medroxyprogesterone acetate to transdermal estradiol: a pilot study on their influence on the endometrium.

We evaluated bleeding pattern and endometrium following the administration of two of the most common types of progestogens used in hormone replacement therapy, medroxyprogesterone acetate (MPA) and medrogestone acetate. Twenty eight patients in spontaneous menopause were randomly allocated to two groups. Group 1 (n = 14) received 5 mg/day of of MPA and group 2 (n = 14) received 5 mg/day of medrogestone: both the progestogens were sequentially added for the last 12 days of a 21-day period of transdermal estradiol administration (50 micrograms per day). A 7-day treatment-free period completed the cycle. The study treatments were administered for 6 cycles. The endomtria were checked for their thickness by transvaginal ultrasound before starting treatment and at 6th treatment cycle (days 6-10 of the estrogen-only phase and during the period between days 8 and 12 of the progestogen addition). Endometrial biopsies were performed before starting treatment only in the patients with a positive progesterone challenge test and in all the patients at the end of the study during the addition of the progestogen. The bleeding pattern was closely monitored. MPA is accompanied by a thick endometrium with full secretory transformation in all cases. On the contrary, the same dose of medrogestone induced a consistent decrease of estrogen primed endometrium with only 4 cases of full secretory transformation. Four medrogestone-treated patients dropped out due to unscheduled bleeding. A low dose of medrogestone added to transdermal estradiol induced incomplete transformation of endometrium and oligo-amenorrhea more frequently than MPA, but it increased the chances of irregular bleeding. MPA fully transformed the endometrium: periods were thus heavier but regular. None of the patients in either group had endometrial hyperplasia.

Administration, Cutaneous↗

Characterization of endothelin receptors in the human umbilical artery and vein.

The aim of the present study was to characterize pharmacologically endothelin receptors that are present in human umbilical vessels. 2. Endothelin-1 (ET-1) and endothelin-2 (ET-2) are potent stimulants of both the human umbilical artery (pEC50 7.9 and 7.5) and vein (pEC50 8.1 and 8.0). Endothelin-3 (ET-3) is inactive on the artery but contracts the vein (pEC50 7.6). IRL1620 is inactive in both vessels. The order of potency of agonists is suggestive of a typical ET(A) receptor in the artery (ET-1 = ET-2 > > ET-3) and a mixture of ET(A) and ET(B) receptors in the vein (ET-1 = ET-2 > or = ET-3). 3. The selective ET(A) receptor antagonist, BQ123, competitively inhibits the effect of ET-1 in the human umbilical artery (pA2 6.9), while in the vein, only a mixture of BQ123 and BQ788 (a selective ET(B) antagonist) weakly displaces to the right of the cumulative concentration-response curve to ET-1. Contractions induced by ET-3 in the vein are inhibited by BQ788 (pA2 7.6), but not by BQ123. 4. Inhibition of Ca2+ channels by nifedipine (0.1 microM) is accompanied by a significant decrease of the maximal response to ET-1 by 40% in the artery and by 30% in the vein. The response of the vein to ET-3 is almost abolished by nifedipine. 5. The results indicate that: (i) endothelins contract the human isolated umbilical artery via stimulation of an ET(A) receptor type; (ii) the contraction induced by ET-1 in the vein is mediated by both ET(A) and ET(B) receptors, while ET-3 stimulates the ET(B) receptor; (iii) the contribution of Ca2+ channels to the contraction mediated by the ET(B) receptor appears to be more important than to that mediated by the ET(A) receptor.

Adult↗

Effects of cyclic therapy with intranasal carbocalcitonin in healthy spontaneous postmenopausal women.

Carbocalcitonin spray administered for 12 months at a daily dosage of 80 U MRC according to five schedules has been tested on 150 normal spontaneous postmenopausal women for its influence on bone mineral density (BMD), bone metabolism and osteoarticular pain. BMD was monitored before and at the end of treatment in comparison with BMD of untreated control women. Metabolic markers (serum alkaline phosphatase, serum osteocalcin and urinary hydroxyproline) were also evaluated before and during treatment (at the 9th or 10th month of treatment). Osteoarticular pain was assessed by an analogic visual scale. Intranasal carbocalcitonin, administered according to cyclic schedules at a high frequency dosage, was able to maintain bone mass only in the earlier postmenopausal women. BMD percent increase after 12 months of treatment was 1.10 and 1.31 in women with low (< 0.870 mg/cm2) and high baseline BMD (> or = 0.870 mg/cm2), respectively. In advanced menopause the maintaining effect of carbocalcitonin on BMD seemed evident only if the baseline bone mass was lower than the BMD of the age matched control group. At least six months of treatment/year is necessary for effective therapy. Both systemic and local tolerance were optimal. No significant side-effects were detected.

Administration, Intranasal↗

[Severe congenital thoracic-lumbar scoliosis in pregnancy. A case report and review of the literature].

The authors describe a case report of a patient affected by congenital thoraco-lumbar scoliosis of a severe degree, aged 32, para 0, gravida 1. She was submitted to orthopedic surgery in childhood. Cesarean section was performed at the 37th week of amenorrhoea. Pregnancy in severe defects of the spine, though becoming more and more uncommon, can still be encountered. Severe congenital scoliosis is a clinical problem; it affects not only the size and shape of the pelvis, but also sometimes results in significant maternal cardiovascular and respiratory complication. The authors, reviewing the literature, evaluate the anatomical and functional (from a biomechanical point of view) derangement of the pelvis, the problem of vaginal delivery and the clinical and radiological assessment of the problem, especially evaluating the cardio-pulmonary function. In conclusion, pregnancy in patients with severe scoliosis can be managed successfully by close monitoring especially of the respiratory function. The decision of the route of delivery is related to clinical assessment and obstetric indications.

Adult↗

Cirrhosis and pregnancy. A case report and review of the literature.

A clinical case of a pregnant suffering from hepatic cirrhosis with ascites, splenomegaly and portal hypertension is described. The pregnancy carried on till the 31st week, even though with the repeated use of tocholytic agents. Cesarean section was performed because of the onset of serious jaundice and the decline of general maternal conditions. The infant, who had an Apgar score of 8 at the 1st and 5th minute, died on the 10th day because of accuse haemorrhagic interstitial pneumonitis in premature lungs and hepatopathy associated with widespread jaundice. The mother was discharged on the 25th day of the postpartum period, in light of the net improvement of her general metabolic condition, the sudden regression of the jaundice and the decrease of the cholestasis indices. A review of the literature discussing maternal complications fetal risks, management of pregnancy and delivery and outcome of the newborn are presented.

Adult↗

LDH and LDH isoenzymes in ovarian dysgerminoma.

Lactic Dehydrogenase (LDH) serum levels were evaluated in three patients with ovarian dysgerminoma and LDH isoenzymes only in one of them. LDH serum levels were elevated at diagnosis and normal after therapy in all the patients; remained low in two patients in remission, increased in one at the moment of progression. LDH isoenzymes appeared to be of limited clinical use.

Adolescent↗

Trazodone: a non-hormonal alternative for neurovegetative climacteric symptoms.

Hormone replacement therapy (HRT) is the treatment of choice for neurovegetative climacteric symptoms. In some women, however, HRT may either be contraindicated, or the patients themselves may prefer a non-hormonal form of treatment. Trazodone is a drug that acts a weak, but specific, inhibitor of the uptake of 3H-serotonin and is generally used for its antidepressant effects. In this study we have observed the efficacy of oral Trazodone (75 mg/day) in the treatment of the climacteric symptoms in 25 menopausal patients recruited at the Menopause Clinic of Ferrara University Hospital. The symptoms were scored from 0 to 3 according to presence and intensity. The patients were all complaining of climacteric neurovegetative symptoms (average symptom score 2.43). Symptoms scores were recorded before starting treatment and then again after 3 months. The appeared to be particularly effective on the intensity of anxiety (OR: 0.08, CI: 0-0.080), insomnia (OR: 0.15, CI: 0.02-0.71), and irritability (OR: 0.29, CI: 0.04-1.48). The intensity of hot flushes appeared reduced but was not statistically significant (OR: 0.52, CI: 0.08-1.87). However, the average total score of symptoms appearing in the Kupperman scale was reduced (-14%) after treatment. Trazodone should be kept in mind as a possible alternative to HRT. This drug can be particularly useful for those patients whose climacteric symptoms have a marked connotation of anxiety rather than for hot flushes or when HRT are contraindicated.

Anti-Anxiety Agents↗

The menopausal transition: a dynamic approach to the pathogenesis of neurovegetative complaints.

In our cross-sectional study we investigated the separate influence of three main factors, namely menopausal and estrogen status, and chronological age, on ten neurovegetative climacteric complaints reported in the scale of Kupperman et al. A multivariate statistical analysis was performed by a multivariate statistical approach on 1161 untreated women seen at the Menopause Center of the Ferrara University Hospital. Ninety women (age range, 41-54 years) were premenopausal; 492 women (age range, 38-55 years) were perimenopausal with irregular periods or amenorrhea for less than 12 months; 468 women (age range, 41-69 years) had a spontaneous menopause (age range, 37-66 years); 111 had had hysterectomy with bilateral ovariectomy while still regularly menstruating. Serum estrone was used as the indicator of the patients' estrogen status. A clear positive trend was demonstrated between menopausal status and the prevalence of depression, hot flushes, insomnia and joint pain. However, only the prevalence of hot flushes amongst these four symptoms was significantly related with the climacteric estrogen decline (beta = -0.006, P = 0.001). Moreover, menopausal status appeared to influence the intensity of fatigue, hot flushes, insomnia and paresthesia. Age was found to significantly (P = 0.053) co-vary only with the intensity of the hot flushes, with a positive relation (beta = 0.092, r = 0.104, P = 0.003), whereas estrone values did not significantly co-vary with any symptom. Furthermore, while neurovegetative symptoms are largely present also in the absence of hot flushes, when these latter are present, they exacerbate both the intensity and the prevalence of all the other symptoms.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗

Pain relief after caesarean section: comparison of different techniques of morphine administration.

We have studied postoperative pain relief after different techniques of morphine administration given in addition to bupivacaine 15 mg during spinal anaesthesia for caesarean section. In group A, morphine was given both intravenously (10 mg) and orally (30 mg slow release MST) at the end of surgery and continued orally at 8-hourly intervals for 24 h. In group B morphine (80 microg) was given intrathecally only, with the bupivacaine. Both quality of analgesia and duration of action were better in group B, while most side-effects were more frequent in group A where a mild self limiting respiratory depression occurred in 38% of patients. Pruritus was, on the other hand, observed in 48% of patients of group B compared to 7% of the patients of group A. This study suggests that adding 80 microg of morphine to the local anaesthetic used in spinal anaesthesia for caesarean section is a simple procedure that gives excellent results in term of reliability, duration of analgesia and safety.

Journal Article↗

Haematocervix during hormonal replacement therapy.

A postmenopausal woman, receiving cyclic hormonal therapy, presented to our clinic with acute pelvic pain, absence of withdrawal bleeding and clinical signs of vagal stimulation (nausea and vomiting). Vaginal exploration and ultrasonographic imaging accounted for haematocervix, which was confirmed by surgical blood evacuation.

Estrogen Replacement Therapy↗

Influence of spontaneous and surgical menopause on atherogenic metabolic risk.

We evaluated serum total-, LDL-, HDL-, cholesterol and triglycerides in 858 women. Sixty-seven were in premenopause, 307 in perimenopause, 326 in spontaneous menopause, and 158 women underwent hysterectomy. Of these, 101 had bilateral ovariectomy, 24 with unilateral ovariectomy and 33 with retention of both ovaries. After correcting for chronological age and body mass index by variance analysis, it was found that total-, LDL- and HDL-cholesterol significantly increased during menopause without changes in the total cholesterol/HDL-cholesterol, LDL-cholesterol/HDL-cholesterol and triglycerides/HDL-cholesterol ratio. The changes gradually occurred during the months preceding spontaneous cessation of menses. Atherogenic metabolic risk (as relative risk of high total and LDL-cholesterol, estimated by logistic regression analysis) significantly increased in all groups of women in reference to premenopause. The risk observed in surgical menopause with bilateral ovariectomy was higher than in spontaneous menopause, and conservation of ovaries in hysterectomized women seems to protect only partially against such an increase.

Adult↗

Influence of oral contraceptives on fasting gallbladder volume.

A total of 615 healthy fertile women (518 pill users and 97 non-users) were examined by real-time ultrasonography for fasting gallbladder volume, gallstones and biliary dysmorphism. None of the six examined combinations of oral contraceptives appeared to influence fasting gallbladder volume significantly. When fasting gallbladder volumes were reanalyzed according to the presence or absence of recognized biliary risk factors, significant modifications were detected, in both pill users and non-users. These changes related only to age and parity. Relative risks of cholelithiasis and biliary dysmorphism were not affected by contraceptive treatment.

Adolescent↗

Risk factors in vulvar carcinoma recurrences.

18 patients with invasive vulvar carcinoma treated by radical vulvectomy and bilateral groin lymphadenectomy have been evaluated. An 18% of local and 22% of pelvic or distant recurrences occurred. The local recurrences had favorable prognosis, whereas the pelvic or distant recurrences a worse prognosis. The staging, the tumour size, the nodes involvement, the stromal infiltration and the lymphoplasmacytic infiltration, as prognostic factors, have been evaluated. All these factors, except the tumour size, influenced the pelvic or distant recurrences. The pelvic or distant recurrences were contemporaneously associated with mild phlogistic infiltration and depth of invasion > 5 mm.

Carcinoma, Squamous Cell↗

Combined use of progesterone challenge test and endometrium thickness evaluated by transvaginal ultrasonography in the preventive management of postmenopausal women.

Endometrial thickness was evaluated in apparently normal postmenopausal women by transvaginal ultrasonography and the results were compared with the response to the progesterone challenge test (PCT). A positive correlation between amount of withdrawal bleeding after PCT and endometrial thickness was found, also demonstrated by the significative correlation between bleeding length and endometrial thickness. Among women referring withdrawal bleeding, 100 and 22% of cases classified as overt flow and spotting, respectively, were characterized by pathologic histological findings. The combined use of these two procedures is suggested as an effective screening mean in the preventive endometrial management of apparently normal postmenopausal women to select candidates for diagnostic invasive procedures.

Carcinoma↗

[Cerebral lesions in patients with ovarian cancer].

The Authors report the appearance of Central Nervous System lesions in three patients previously treated for ovarian carcinoma. In one case (Stage 1) the histological sample found a glioblastoma, in the others (Stage 3) the lesion was the metastases after systemic diffusion of the primary carcinoma. CNS metastases are rare and more frequently occur in advanced ovarian carcinoma. In patients at Stage 1, CNS isolated lesions may be primary tumors.

Aged↗