Search PubMed⌕ Search

Biomedical subjects

D Gruber

Publications and source records attributed to D Gruber.

At least 55 records · Page 3Linked to original sources
PubMed1995

The effects of hormone substitution in depot form on the uterus in a group of 50 perimenopausal women--a vaginosonographic study.

The aim of our study was to examine the effects of hormone replacement on the size of the uterus and the development or increase of myomatas. Fifty perimenopausal women were included in the study (53.8 +/- 5.0 years). Patients received a substitution therapy composed of a combination of 4 mg estradiovalerate and 200 mg prasteronenantate (Gynodian Depot cartridges) given as a muscular injection in 6-10 week intervals (mean 7 weeks +/- 4 days). Prior to the onset of therapy with Gynodian and after a period of 12 months (+/- 13 days) vaginosonography was performed. Measurements taken were length, thickness, height of endometrium, size of ovaries and of myomas. Data obtained were correlated with baseline findings. Within 1 year, significant increases in uterus length from 73.4 mm to 88.2 mm, in uterus thickness from 33.9 mm to 43.5 mm and in endometrium height from 4.1 mm to 6.7 mm were observed (median values). There was an increase in both the number (from 2.2 to 3.5) and the size of the myomatas (29.4-35.0 mm diameter). A statistical analysis conducted by means of the Wilcoxon matched pairs signed-rank sum test showed P < 0.001. No significant change occurred in the size of the ovaries. Our study shows that hormone substitution may have an impact on uterus growth and that therefore vaginosonographical monitoring can be recommended.

Dehydroepiandrosterone↗
PubMed1995

[Measuring skin thickness in perimenopausal women. Correlation with bone density and hormone parameters].

AIM: To evaluate the connection between alterations in skin-thickness and bone density in menopause. METHOD: In 231 perimenopausal women the skin thickness was measured with ultrasound and correlated with the results of bone densitometry and the hormonal parameters. RESULTS: The correlation between skin thickness and bone densitometry showed a statistical significance of p < 0.0001. Thus we could demonstrate that not only the bone but also the skin is a hormone-dependent organ which responds enormously to a decrease of C19 and C18 steroids. CONCLUSION: Ultrasound skin measurement is a very simple method which can be used for a more differentiated diagnosis and therapy in menopausal women.

Bone Density↗
PubMed1995

[Correlation of skinfold thickness with bone density and estradiol, FSH and prolactin level in a sample of 231 women].

Skin thickness was measured by means of ultrasound and correlated with the results of bone densitometry and hormonal parameters. Skin thickness and bone density were significantly correlated (p < 0.0001). These results indicated that not only bone, but also skin is a hormone-dependent organ, which responds to the menopausal decrease in sexual steroids. Hence, skin ultrasound, just like bone densitometry, can be useful implemented in the differential diagnostic procedure, as well as the therapy of the menopausal syndrome. Additionally, the estrogen-dependent postmenopausal decrease in collagen tissue can be assessed by ultrasound and a successful therapeutic outcome achieved by optimizing the dosage of estrogen substitution.

Bone Density↗
PubMed1994

[Placebo-controlled study of melbrosia in treatment of climacteric symptoms].

In a placebo controlled randomized trial we evaluated the efficacy of melbrosia in women who suffered from severe menopausal symptoms. We could show that there was hardly no difference in the change of biochemical parameters, but we found out that the decrease of menopausal symptoms (headache, urinary incontinence, dry vagina, decreasing vitality) was significant in women who did undergo melbrosia medication compared to those who just took placebo. Due to our investigations we reasoned that melbrosia is especially appropriate to women who do not want and who do not need hormone replacement therapy, but who do suffer from menopausal symptoms.

Adult↗
PubMed1991

Weak or missing paw lateralization in a mouse strain (I/LnJ) with congenital absence of the corpus callosum.

Ward et al. (Brain Research 424 (1987) 84-88) have reported that reduced size of the corpus callosum (CC) was associated with a lower degree of paw preference in the mouse strain 129/J but not in the strain BALB/cCF. Both strains show individually different degrees of development of the CC but mice completely lacking CC occur rarely. The mouse strain I/LnJ shows complete agenesis of the CC. Thus, we have compared the degree of paw lateralization by means of a food reaching task in two samples of I/LnJ mice (n1 = 81, n2 = 93) with that of two common mouse strains which show a normal CC (C57BL/6JIbm, n = 44; DBA/2JZur, n = 48). The two samples of I/LnJ mice were tested in different laboratories. The first sample of I/LnJ mice had a mean age of 36 weeks. As compared to the control mice, the males but not the females showed a significantly reduced degree of paw preference. Both, callosal and acallosal mice showed a preference for left choices. The replication sample of I/LnJ mice contained only animals between 6 and 8 weeks old. All of them were ambilateral. There was no side preference and no gender difference. We conclude that congenital absence of the CC is a factor which may substantially interfere with the development of paw lateralization. However, depending on age and gender, about half of the acallosal mice develop a paw preference.

Agenesis of Corpus Callosum↗
PubMed1989

Biological monitoring and our water resources.

Biological monitoring is a means of assessing water quality, or the toxicity of chemicals, employing living organisms as the sensors. Relatively recent environmental regulations have led to the application of biomonitoring techniques by wastewater discharges and chemical manufacturers. Classical approaches to biomonitoring have included the acute bioassay which takes death as the end-point of the test. Recent developments include automated and real time biomonitors which utilize computer technologies for assessing changes in physiological or behavioural parameters to indicate the presence of toxics.

Animals↗
PubMed1989

[Trabeculectomy and trabeculo-retraction in the treatment of chronic primary open-angle glaucoma. Long-term tonometric results].

The long term tonometric results of laser (Argon Laser Trabeculoplasty) and surgical (Trabeculectomy and combined-surgery) treatment in Primitive Chronic Open Angle Glaucoma are analysed on 184 eyes by a retrospective study. Three groups of patients are compared: group I: 81 trabeculoplasties followed 4 years, group II: 75 trabeculectomies followed 5 years, group III: 28 combined-surgery (intra-capsular cataract extraction without implantation combined with a trabeculectomy) followed 5 years. For the three groups, reduce of IOP is noted after 6 months but seems less important after 30 months. Instantaneous results curves show a success rate of 80 to 100% (of which 10 to 20% with additional medical treatment). But cumulative failures rates are higher: more than 50% at 4 years for group I and group II, and only 29% at 5 years for group III. These results are confirmed by actuarial curves: group I: probability success rate of 65% at 4 years group II: probability success rate of 49% at 5 years group III: probability success rate of 73% at 5 years. The comparison of group I and II by actuarial curves is not statistically significant (Logrank test: chi 2 = 0.05). We had discussed the advantage of a new prospective randomised study.

Actuarial Analysis↗
PubMed1989

[Treatment of chronic primary open-angle glaucoma. Long-term functional results].

The functional results of the treatment of primary open angle glaucoma (POAG) were analysed. A retrospective study was undertaken on 437 eyes from 282 patients (137 women, 145 men) followed in Saint Joseph's Hospital (Paris). The mean follow-up was 9.7 years (4-22 years). 265 eyes received only medical treatment, 83 eyes argon laser trabeculoplasty (ALT) and 89 eyes surgery (66 trabeculectomies - 23 cataract-glaucoma combined operations). At least twice a year, intraocular pressure (IOP), visual acuity (VA) and mean total visual capability (TVC) on the Friedmann analyser were recorded on a computer. The severity gradient (SG) was calculated from the evolution gradient of TVC versus IOP with time for each group (medical, ALT, surgery) before and after treatment. Medical SG was not significantly different from ALT SG or surgery SG (trabeculectomy or combined surgery). For each group, SG before treatment was not significantly different from SG after treatment. For tonometric failures after ALT or surgery, SG before treatment was not different from SG after treatment. Nevertheless, after trabeculectomy, in the cases of clear tonometric success (IOP less than or equal to 16 mmHg), SG was significantly improved (p less than 0.001). On the other hand, no positive influence was noted on visual field evolution in cases of a commonly admitted good tonometric control (IOP less than or equal to 21 mmHg). Visual acuity loss after trabeculectomy was greatest during the first year (6/20). The cataractogenic role of trabeculectomy was statistically confirmed. The incidence of cataract at 5 years was 46%. This cataractogenic effect occurred significantly more after 55 years. We discuss tonometric effect on TVC evolution.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗