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Biomedical subjects

P F Tauber

Publications and source records attributed to P F Tauber.

At least 19 recordsLinked to original sources
PubMed1993

Effect of the intrauterine contraceptive device on protein components of human uterine fluid.

The albumin, immunoglobulin G (IgG), immunoglobulin A (IgA), lysozyme, lactoferrin, alpha 1-antitrypsin, alpha 1x-antichymotrypsin, and neutral proteinase levels of uterine fluid and serum of IUD-bearing women were studied in relationship to the phase of the menstrual cycle, the length of IUD implantation and the presence of reported side effects. Selection of these proteins was based on their potential importance in IUD-induced contraceptive action and/or side effects. Generally, only small differences were found in the serum levels of these proteins during the cycle, with different length of implantation or between patients with and without side effects. However, transudation of proteins (albumin, IgG, alpha 1-antitrypsin, alpha 1x-antichymotrypsin) from blood into the uterine cavity was enhanced by the IUD, especially during the postmenstrual and premenstrual periods. The IUD enhanced the local secretory response even more, i.e., the increased release of proteins from the endometrium (lysozyme, neutral proteinase, IgA) and from leukocytes (lysozyme, lactoferrin). Protein changes occurred as the period of insertion increased. These changes in the uterine milieu may account in part for the contraceptive action of the IUD. The secretory proteins rather than the transudation products differed between patients who showed IUD-associated side effects vs. those who did not, implying that IUD-related pathology is primarily associated with changes in local secretory response. The possible role of each protein in the mechanism of IUD action is presented in view of the present findings.

Adult↗
PubMed1993

Immature teratomas of different origin carried by a pregnant mother and her fetus.

We describe the case of a pregnant mother and her fetus who both carried teratomas during the pregnancy. The fetus was diagnosed at 38 weeks' gestation to have an intracranial mass, which was later determined to be an immature teratoma. During a cesarean section delivery, an ovarian tumor was found in the 27-year-old mother that was also diagnosed to be an immature teratoma. Because of the similar histology of the tumors carried by both mother and child, a single clonal origin was suspected. Using polymerase chain reaction (PCR) and electrophoresis of highly polymorphic DNA satellite sequences, we determined that the origin of the intracranial teratoma carried by the child was independent of the mother's tumor. We also examined the p53 tumor suppressor gene in constitutional cells from both mother and child for the possible presence of a cancer-predisposing inherited mutation, but none was found. To our knowledge, this is the first report of the simultaneous occurrence of independent malignant immature teratomas in a mother and child during pregnancy.

Adult↗
PubMed1986

Severe pain at interval IUD insertion: a case-control analysis of patient risk factors.

This investigation, using a case-control analysis approach on an IUD data set from a less-developed country center, delineated four risk factors in patient characteristics that are associated with severe pain at interval IUD insertion. They are: higher education (greater than or equal to seven years), low-parity (1-2 live births), longer open interval (greater than or equal to 13 months) between the end of the last pregnancy and insertion, and non-breastfeeding at the time of insertion. Adjusted relative risks estimated by odds ratios are 2.1, 2.7, 2.7 and 5.0, respectively. For women with a combination of the above risk factors, they have a further increased (additive in nature) risk of suffering severe insertion pain. Similar analysis was also performed on a developed country center data set for which only the effect of education and parity could be studied; an odds ratio of 5.0 for nulliparity was obtained. The plausibility of these findings as well as their clinical and programmatic implications are discussed.

Breast Feeding↗
PubMed1985

Diffusable proteins of the mucosa of the human cervix, uterus, and fallopian tubes: distribution and variations during the menstrual cycle.

The secretory proteins of the mucosa of the cervix, uterus, and fallopian tubes were investigated by measuring the proteins that were released by isolated mucosal areas. Initial screening disclosed that the immunoglobulins IgG and IgA were released in measurable quantities, but that IgM and the secretory (T) piece of IgA were either absent or present only in trace amounts. Relatively low levels of diffusable total complement activity and the C3 component of complement were present, whereas the C1q, C1r, and C4 components were either absent or present only in trace quantities. No neutral proteinase activity was present, but lysozyme, plasminogen activator, alpha 1-antitrypsin, and alpha 1x-antichymotrypsin could be found in reasonable amounts. The site of secretion, concentration, and cyclic variation of the proteins that diffused from the mucosal sites in measurable quantities were studied. The types and amounts of protein secreted by a particular site in the cervix, uterus, or fallopian tube varied from those of protein from other sites, even within the same organ. During the menstrual cycle, variations occurred in the amount of protein secreted by each mucosal site. However, whether an increase or a decrease in the release of a particular protein took place varied with each protein, even at the same site. The mucosal sites also differed from each other in their response to the phase of the menstrual cycle, that is, whether more or less protein was released, even sites within the same organ. The conclusion is that each organ and even different sites within an organ can respond independently from each other to changes in hormone levels, producing different types and amounts of secretory proteins. The amount of diffusable protein produced by an individual site during the menstrual cycle depends on the type of protein as well as the mucosal site.

Adult↗
PubMed1984

[Short-term prevention with cefoxitin in cesarean section].

In a preliminary prospective study, the febrile morbidity of 60 patients after Caesarean section was determined to investigate the prophylactic effect of a single-dose cefoxitin-application (2 g) intravenously at the time of induction of anaesthesia. Patients were randomly assigned to either the cefoxitin group or a control group without the antibiotic. Each group consisted of 30 patients. Although the numbers of patients were small, a statistically significant reduction (p less than 0.05) of febrile days was found for the cefoxitin group. As compared to previous studies with a three-dose regimen of cefoxitin, the per cent reduction rate of febrile morbidity was similar. In cases with certain risk profiles, such as premature rupture of the membranes or prolonged delivery, a single-dose appears to suffice and is therefore indicated.

Adult↗
PubMed1982

[Intrauterine contraception. Risks, indications, trends].

Intrauterine contraception is used by approximately 1 million fertile women in Germany. IUDs work through various factors, i.e. impaired activity of spermatozoa, defects in the lining surface epithelium of the endometrium, and inhibitory effects towards the blastocyst itself. The main risks of intrauterine contraception are perforation of the uterus at the time of insertion, irregular bleedings, ascending infections and ectopic pregnancies. If intrauterine pregnancy occurs despite the presence of an IUD (2-4%), the rate of abortion is considerably high. In few those cases septic sequelae may complicate the spontaneous abortion. After the removal of the IUD of any type fertility immediately returns to normal with the exception of cases suffering from inflammatory complications in association with an IUD in situ. The indication for the application of an IUD should be seriously considered, the use of a formal sheet for informed consent is advisable.

Abortion, Spontaneous↗
PubMed1981

Reduced menstrual blood loss by release of an antifibrinolytic agent from intrauterine contraceptive devices.

Lippes Loop and Multiload intrauterine contraceptive devices (IUDs) were fitted with silicone rubber sleeves which either did not contain any compound (blank) or contained the antifibrinolytic agent, epsilon-aminocaproic acid (EACA. In vitro measurements showed that the antifibrinolytic agent was released from the sleeves for a period of 20 days. After insertion into women, the blank Lippes Loop IUDs and Multiload IUDs as well as copper-containing Multiload IUDs caused a significant increase in blood loss beginning with the first menstrual cycle after insertion. The enhanced blood loss was generally retained during subsequent menstrual cycles. By contrast, the menstrual blood loss induced by IUDs containing EACA sleeves was not significantly greater during the first menstrual cycle after insertion that the preinsertion levels. When no more EACA was released, menstrual blood loss increased to approximately the same level as that observed with the blank and copper IUDs. Thus, release of EACA from an IUD retains menstrual blood loss at approximately physiologic levels. These results encourage the development of IUDs that are capable of releasing antifirbrinolytic agents over a long period so that the antimenorrhagic effect is maintained.

Aminocaproic Acid↗
PubMed1981

[Menstrual cycle changes during consecutive artificial insemination therapy and their treatment].

Emotional stress-induced problems generated by the application of artificial insemination therapy by donor (AID) are considerable. After 6 months of frustrane insemination treatment, 54% of the women exhibited irregular or anovulatory cycles. Especially the persistent late ovulation often leads to a failure of the mechanisms of conception. An early ovulation timing with high dosages of synthetic LH-releasing hormone or a stimulating LH-RH-analogue (HOE 766) lead to an increasing pregnancy rate after application in the third insemination cycle from 34,0% untreated to 51,1% treated. The early application of ovulation inducing or timing substances is underlined in a program of artificial insemination therapy to eliminate possible stress-induced failures at an early point of treatment. As the spontaneous pregnancy rate is high in the first treatment cycles, LH-RH or its analogue should be administered after two frustrane insemination cycles.

Anxiety↗
PubMed1981

Further evaluation of the split ejaculate for artificial insemination.

The role of artificial insemination with husband semen (AIH) in solving fertility problems has been studied by many investigators. Different conclusions have been made due to the variety of indications for AIH. This communication attempts to evaluate the use of the best split ejaculate fraction for AIH in 55 couples in which the only pathological condition was oligozoospermia or oligoasthenozoospermia. Couples in which the women had a known history of anatomical abnormalities were excluded. Although the seminal parameters of spermatozoal density and/or motility in the best split fractions were frequently found to be in the fertile range, the pregnancy rate achieved was only 18% (n = 10). This was comparable to the results obtained by others using whole ejaculates for AIH. The spontaneous pregnancy rate in the present study after termination of treatment was 13% (n = 6). The observations suggest that men with a long-standing history of seminal deficiency produce spermatozoa with a pathology that cannot be microscopically recognized.

Adult↗
PubMed1981

Results of donor artificial insemination (AID) in 415 couples.

During a 4.5-year period 415 spouses of infertile males were treated by artificial insemination with donor semen, resulting in 210 pregnancies (51%). An average of 7.1 insemination cycles and 11.5 inseminations was required to achieve a pregnancy. Thirty-six percent of the pregnancies occurred in the first cycle of treatment, 71.5% after three cycles of treatment, and 91.5% in six cycles. The abortion rate was 15%, comparable to that in the fertile population. The sex ratio of deliveries at time of reporting was 60 males to 62 females. For selected couples suffering from male sterility, artificial insemination with donor semen provides a reliable and therapeutically effective alternative to adoption.

Abortion, Spontaneous↗
PubMed1981

[Flow properties of blood in women on oral contraceptives (author's transl)].

Erythrocyte deformability, whole-blood viscosity, haematocrit as well as fibrinogen and plasminogen concentrations were checked in 39 clinically intact women of whom 22 had been on oral contraceptives for upto five years. Also determined were several serum proteins, such as transferrin, coeruloplasmin, alpha-2 macroglobulin, alpha-1-trypsin, beta-lipoprotein, and inactivated complement component C3. -Seventeen women with intra-uterine devices were chosen to form a control group. Proteins with sensitivity to oestrogen as well as whole-blood viscosity were found to be increased whereas erythrocyte deformability was decreased. Yet, no haemodynamic manifestation took place ot those rheological parameters, since haematocrit declined or remained constant, and no change occurred to fibrinogen and plasminogen concentrations.

Adolescent↗