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PubMedDate not supplied

[Children's knowledge of sex behavior and contraception].

INTRODUCTION: Adolescent sexuality is not a new phenomenon, but it has been accepted differently at various times and societies. In modern times, adolescents start sexual life early, not well educated and not prepared for possible consequences. The period between the first sexual relationship, marriage and having children is prolonged with a greater possibility of having artificial abortions or sexually transmitted diseases (STD). It is of great importance to work on proper education of children and adolescents on sexual life and contraception. MATERIAL AND METHODS: An inquiry into the knowledge of sex and contraception was performed in an elementary school in Novi Sad, comprising 134 children from VII and VIII grade (aged 13-14, 77 girls and 57 boys) in order to prepare a lecture on these topics. RESULTS: Most of the knowledge on these topics children aged 13 and 14 got watching TV and reading magazines (44.15% girls and 70.17% boys) and from their friends (42.1%). Communication about sex and contraception exists mostly among friends (51.95% girls and 82.46% boys). One third of girls talk with parents and one quarter got knowledge from them. Only four boys (2.98%) had sexual intercourse without complications: artificial abortion or STD. Almost every child (96.95%) knows about AIDS and 89.25% children know about at least one method of contraception (mostly condom). Three quarters claim artificial abortion is harmful. 50% of children want more education about sex and contraception. DISCUSSION AND CONCLUSIONS: Most of the knowledge on sexual life and contraception children get from various forms of mass-media and from one another which is unreliable and incomplete. Unfortunately, parents and teachers play a minor role in sex education of children. In order to prevent spreading of sexually transmitted diseases and to decrease the percentage of adolescent pregnancy and artificial abortions, it is of great importance to investigate knowledge, attitudes and practice of children and adolescents in regard to sexual life and contraception and to prepare acceptable and efficient programs for education on these topics. However, not only education is important, but also acceptance and behavior of children and adolescents resulting from these programs.

Adolescent↗
PubMed1981

Abortive infection of Ehrlich tumor cells by influenza virus: virus-specific RNA, protein synthesis, and transport.

Early in infection of Ehrlich tumor cells (ETC) by the WSN strain of influenza virus, all eight genes were transcribed and both complete and incomplete transcripts were synthesized in a manner similar to that in a permissive system, chick embryo cells. However, later the transcription of genes 1, 4, 6 and 7 was not amplified and the synthesis of late proteins HA and M was restricted. The transport of M protein to the plasma membrane was specifically inhibited. These data suggest that the abortive replication of influenza virus in ETC could be due to defects in synthesis as well as in intracellular transport of the M protein.

Animals↗
PubMed1989

[Morphological appearance of cellular immune reaction in the endometrium in spontaneous miscarriage].

Morphometric analysis of lymphocyte, macrophage and polymorphonuclear leukocyte levels in the endometrial stroma was performed in 67 spontaneous and 30 induced abortions during 5-12 weeks of gestation. The results were correlated with the degree of structural maturity of decidual tissue and terminal chorionic villi and showed activation of lymphocyte macrophage reaction mostly pronounced in case of incomplete decidual transformation of endometrial stroma and hypoplastic alterations of chorionic villi. It was concluded that the aforementioned changes were secondary to a decreased function the gravid yellow body and subsequent activation of cell-mediated immune response in the endometrium during spontaneous abortion.

Abortion, Spontaneous↗
PubMed1976

The significance of glucose-6-phosphate dehydrogenase deficiency in pregnancy.

A study was undertaken to attempt to understand the significance of glucose-6-phosphate dehydrogenase deficiency, one of the most common genetic enzymatic defects known, in the context of pregnancy. A group of 841 consecutive patients were screened by a sensitive test for this deficiency state, and all deficient subjects available were matched with control subjects and followed prospectively. Little significance to mother and baby was noted, although the study of the babies was incomplete. Previous reports of an increased rate of urinary tract infections and icterus neonatorum were not substantiated. Increased rates of abortions, low-birth-weight infants, and puerperal drops in red cell volumes were noted. The physiology of the disease and precautions for practitioners are discussed.

Adolescent↗
PubMed1986

Comparison between abdominal and hysteroscopic metroplasty.

Thirty-three patients were diagnosed by hysterosalpingography and laparoscopy as having septate uteri, which were assumed to be responsible for their infertility, recurrent abortions, or premature labor. Fourteen of these had Tompkins metroplasty (group 1) while the other 19 had their repairs done by hysteroscopic metroplasty (group 2). Post-operative hysterosalpingography for patients in group 1 revealed normal uterine cavities in 72%, incomplete septum excision in 14%, and intrauterine filling defects in 14%. The corresponding figures in group 2 were 88, 12, and 0%. In group 1, 71.0% became pregnant; of these, 70% continued to term (with delivery by cesarean section), 20% aborted, and 10% were tubal pregnancies. In group 2, 84% became pregnant; of these, 87% had term vaginal deliveries, and 13% miscarried. Patients in group 2 had less operative time, less blood loss, and shorter hospital stays. These findings demonstrate that hysteroscopic metroplasty may be preferable to the transabdominal procedure based on cost and morbidity considerations as well as on anatomic and reproductive outcome.

Endoscopy↗
PubMedDate not supplied

[Intramuscular administration of Prostin for abortion in the second trimester].

The effect of Prostin (15/S/15 methyl prostaglandin F2 alpha) ampules applied intramuscularly to induce abortion in the second trimester of pregnancy was investigated. Out of 30 women who underwent the treatment, 28 (93.3%) cases were successful and 2 (6.7%) unsuccessful. The average time from the application of the medicament to the output of the ovulum was 30.04 hours. The medicament proved to have a strong uterotonic effect associated with highly manifested side effects, such as vomiting, diarrhea, nausea, perspiration, etc. Among serious complications due to the Prostin application, a single case of an incomplete low uterine rupture and one case of the cervical rupture (6.6%) were evidenced.

Abortion, Induced↗
PubMed1983

Coronal cleft of vertebrae, a variant of normal enchondral ossification.

In 157 spontaneously aborted human embryos and fetuses the incidence and evolution of coronal cleft formation was investigated radiologically and histologically. Complete clefts were formed in nine cases and incomplete clefts in 16 cases. There was a predominance of males. It is concluded that coronal clefts are variations of normal enchondral ossification and that the notochord plays no role in its pathogenesis. Coronal clefts seen on radiographs of newborn should not be interpreted as a malformation. Thus no preventive or treatment regimen is indicated.

Abortion, Spontaneous↗
PubMed1976

Preliminary characterization and pathogenicity studies of a virus isolated from ticks (Ornithodoros coriaceus) and from tick-exposed cattle.

Several viral isolates from ticks (Ornithodoros coriaceus) and from the blood of cattle which aborted after exposure to these ticks were found to be identical by reciprocal cross serum-neutralization tests. Characterization studies indicate that the virus is a member of the Togaviridae family, although specific identification is still incomplete. Whether its natural host is the tick or bovine animals is also unknown. Pregnant cows inoculated with the agent by all conventional parenteral routes, including intrafetal, delivered healthy calves at term. It was concluded, therefore, that it was not a bovine pathogen and that the abortions which occurred after tick-exposure were due to a 2nd agent in O coriaceus ticks which also harbor the virus. While several ciruses believed to be tick-borne have been isolated from cattle in various parts of the world, it is believed that the present report describes the first isolation in the Western Hemisphere for a viral agent from Argasid ticks which has been demonstrated to replicate in cattle.

Abortion, Veterinary↗
PubMed2000

Characterization of vibrio cholerae O1 antigen as the bacteriophage K139 receptor and identification of IS1004 insertions aborting O1 antigen biosynthesis.

Bacteriophage K139 was recently characterized as a temperate phage of O1 Vibrio cholerae. In this study we have determined the phage adsorption site on the bacterial cell surface. Phage-binding studies with purified lipopolysaccharide (LPS) of different O1 serotypes and biotypes revealed that the O1 antigen serves as the phage receptor. In addition, phage-resistant O1 El Tor strains were screened by using a virulent isolate of phage K139. Analysis of the LPS of such spontaneous phage-resistant mutants revealed that most of them synthesize incomplete LPS molecules, composed of either defective O1 antigen or core oligosaccharide. By applying phage-binding studies, it was possible to distinguish between receptor mutants and mutations which probably caused abortion of later steps of phage infection. Furthermore, we investigated the genetic nature of O1-negative strains by Southern hybridization with probes specific for the O antigen biosynthesis cluster (rfb region). Two of the investigated O1 antigen-negative mutants revealed insertions of element IS1004 into the rfb gene cluster. Treating one wbeW::IS1004 serum-sensitive mutant with normal human serum, we found that several survivors showed precise excision of IS1004, restoring O antigen biosynthesis and serum resistance. Investigation of clinical isolates by screening for phage resistance and performing LPS analysis of nonlysogenic strains led to the identification of a strain with decreased O1 antigen presentation. This strain had a significant reduction in its ability to colonize the mouse small intestine.

Adsorption↗
PubMedDate not supplied

Collecting data on pregnancy loss: a review of evidence from the World Fertility Survey.

Estimates of levels and differentials of pregnancy loss are presented for 40 developing countries participating in the World Fertility Survey (WFS) program. Judged against agreed-upon levels of spontaneous loss in human populations, WFS surveys measured from 50 to 80 percent of recognizable losses. The coverage of induced abortions appears to be much worse. Consistent with data from other sources and settings, the probability of loss is strongly correlated with maternal demographic characteristics: age, pregnancy order, pregnancy spacing, and pregnancy loss history. Despite incomplete coverage, the WFS data on pregnancy loss provide considerable, and largely unexploited, insight on the dynamics of the reproductive career.

Data Collection↗
PubMed1995

Mortality after an antenatal diagnosis of foetal uropathy.

A longitudinal study identified 987 foetal uropathies over a 13-year period. There were 147 deaths. Forty infants died as a result of a lethal uropathy in the presence of associated congenital anomalies. Sixty-six infants with an isolated uropathy died. There were 4 cot deaths, 2 obstetric related deaths, and 34 deaths caused by associated congenital anomalies. There was 1 termination of pregnancy following a false-positive diagnosis of uropathy. Of the 147 deaths, 34 occurred postnatally, 20 within 24 hours. Twenty-nine infants were spontaneously aborted. There were 78 terminations of pregnancy, 43% occurring after 24 weeks of gestation. There was complete concordance in antenatal and postnatal diagnoses in 113 (77%) cases and incomplete concordance in 19 (13%) cases. There were 14 false-negative diagnoses (9.5%). The relative frequency of different lethal congenital uropathies is detailed. Accurate in utero diagnosis of foetal uropathy and hence prediction of outcome is possible. The relatively late gestational age at time of diagnosis remains a constraint when fatal malformations would otherwise prompt termination of pregnancy.

Abnormalities, Multiple↗
PubMed2005

CD4(+)CD25+ T regulatory cells in murine pregnancy.

Mammalian pregnancy is thought to be a state of immunological tolerance and immunological pregnancy complications may result from incomplete allo-tolerance. We reported recently a higher frequency of Th1 cytokine-producing T cells specific against paternal antigens in abortion-prone mice compared to normal pregnant mice. Since Th2 cells were shown to be not essential for normal pregnancy; alloreactive Th1 cells must be differently regulated. In this context, T regulatory cells (Treg) were proposed to play an essential role. Normal pregnant mice show an expansion of CD4(+)CD25+ and IL-10+ Treg cells at the periphery compared to non-pregnant animals. Further, we reported significantly lower frequencies of Treg in abortion-prone mice. Interestingly, CD4(+)CD25+ Treg cells from normal pregnant mice were able to prevent fetal rejection. Accordingly, down-regulated levels of Treg were also reported during human miscarriage. The putative mechanisms involved in Treg-induced tolerance in mice and humans are discussed in this review.

Animals↗
PubMed1989

Role of hemagglutinin cleavage and expression of M1 protein in replication of A/WS/33, A/PR/8/34, and WSN influenza viruses in mouse brain.

The combined presence of WSN gene segments 6 (neuraminidase), 7 (M1 and M2), and 8 (NS1 and NS2) in reassortants of WSN with A/Aichi/2/68 (H3N2) has been found by others to be necessary for full expression of neurovirulence in mice. We are examining the expression of the analogous three gene segments in brains of mice after intracerebral infection with non-neuroadapted strains A/WS/33 (WS) (from which WSN was derived) and A/PR/8/34 (PR8). Our aim is to determine possible mechanisms by which one or more of the five gene products may restrict replication of these strains in mouse brain cells to a single cycle, yielding noninfectious hemagglutinating particles (incomplete growth cycle). We found that minority subsets of such particles did produce plaques, provided they were activated by trypsin (analogous to other abortive systems producing virions with uncleaved HA), a step obviated for some WSN virions by indirect promotion of hemagglutinin cleavage by the neuraminidase of that strain. The percentage of such potentially infectious virions, relative to total hemagglutinating particles, was significantly lower in WS- or PR8-infected than in WSN-infected brains, suggesting possible defects in synthesis or function of M1 protein in the former. Cells in immunostained sections and appropriate bands in Western blots (immunoblots) of viral proteins electrophoretically separated from lysates of PR8-infected brains reacted with antibody to nucleoprotein but not to M1 protein. Either method revealed the presence of both proteins in WSN-infected brains. In contrast, Western blot analyses of particles concentrated from PR8-, WS-, or WSN-infected brains by hemadsorption, elution, and pelleting did reveal NP and M1 bands with comparable relative peroxidase-antiperoxidase staining intensities. The findings suggest that availability of M1 protein is a factor influencing the extent or rate of assembly of potentially infectious (i.e., trypsin-activated) progeny virions in mouse brains and that in this respect the two non-neurovirulent strains differ from WSN quantitatively rather than qualitatively.

Animals↗
PubMed1997

[Surfactant administration and laterally independent positive pressure ventilation in acute lung failure and atelectasis after septic abortion. Case report].

We report the case of a 35 years old female patient suffering from Staphylococcus aureus induced abortion in the 7th/8th week of gestation. Sepsis with acute respiratory failure (ARDS) developed, which could be treated successfully. Pneumonia, caused by Pseudomonas aeruginosa, induced a recurrence of ARDS, complicated by a persistent incomplete atelectasis of the left lung. Independent ventilation of both lungs with increased pressure on the left side combined with bronchoscopy guided instillation of 1 g of bovine surfactant (Alveofact), caused improvement of arterial oxygenation and radiological signs, signalling airation of collapsed lung areas.

Abortion, Septic↗
PubMed2004

Traumatic injury to CNS fiber tracts--what are the genes telling us?

In contrast to the peripheral nervous system (PNS) nerve fiber tracts of the adult central nervous system (CNS) cannot spontaneously regenerate in response to lesions. As a result injured individuals suffer from chronically impaired neuronal connections leading to major motor-, sensory- and cognitive deficits. It is generally assumed that combinatorial effects account for this regeneration failure including a growth non-permissive environment within CNS lesion zones as well as incomplete activation of axonal growth programmes. In order to design CNS repair strategies it is, therefore, imperative to address the molecular mechanisms responsible for this abortive growth behaviour by means of large scale screening techniques. This review summarizes the outcome of recent gene expression profiling studies investigating local and remote molecular reactions following CNS axotomy.

Axons↗
PubMed1964

STUDIES ON PERSISTENT INFECTIONS OF TISSUE CULTURES. V. THE INITIAL STAGES OF INFECTION OF L(MCN) CELLS BY NEWCASTLE DISEASE VIRUS.

The initial stages of infection of L(MCN) cell populations with standard Newcastle disease virus (NDV(ST)) were analyzed in an effort to elucidate the steps leading to survival of the cultures and to the indefinite persistence of the infectious process at a low level. Cells were exposed in suspension to NDV at varying multiplicities and the monolayer cultures derived from such cells assayed at intervals for cellular growth rates, percentage of infected cells as determined by immunofluorescence, yields of viral progeny and of interferon, and, on occasion, resistance to superinfection with vesicular stomatitis virus. The percentage of cells calculated to be initially infected on the basis of adsorption data was found to match closely the percentage of immunofluorescent cells resulting from the first infectious cycle (up to 24 hours). Cells initially infected with NDV(ST) produced a mixed progeny of infectious virus (from 15 to 40 pfu/cell) and about 10 times as many non-infectious particles in 24 hours [NDV(L(MCN))], but little or no interferon. If all cells were infected the cultures ultimately died. At multiplicities of infection (m) of 2 or less the cultures survived with increasing ease as the percentage of infected cells was reduced. The number of pfu per infected cell was of the above order during the first 3 days; it declined thereafter. Limited secondary spread of the infection was noted by 48 hours and no further cycling was noted thereafter. As m decreased from 2.0 to 0.1 there was an increase in the yields of interferon and the time at which peak titers were reached. Addition of anti-NDV serum 2 hours after infection prevented measurable production of interferon. In contrast, following exposure of cells to NDV(L(MCN)) at multiplicities ranging from 20.0 to 0.2 (based on infectious virus) all cultures survived, no secondary spread was noted, the number of pfu per infected cells was reduced at the higher multiplicities, and the yields of interferon were similar and maximal by 24 hours and not affected by anti-NDV serum added after an adsorption period of 2 hours. It is concluded that the non-infectious virus particles in the progeny released from NDV(ST)-infected cells induce resistance in remaining cells or, if adsorbed simultaneously with infectious virus, abort the intracellular infectious process. In both instances interferon is produced which may then render additional cells resistant. The non-infectious component is considered an incomplete or defective product of viral replication and not merely thermally inactivated virus. NDV(ST) partially or completely inactivated at 37 degrees C induced neither cellular resistance nor synthesis of interferon. The incomplete viral component behaved in all respects like ultraviolet-inactivated NDV(ST) except that it was significantly more efficient in inducing interferon synthesis. On the basis of the presented data a scheme has been devised and discussed which appears to explain satisfactorily the events which take place on initial infection of L(MCN) cells with NDV and which lead to the persistence of the infectious process.

Animals↗
PubMed1986

Pregnancy as a reaction to early childhood sibling loss.

Surrogate mothers, illegitimately pregnant teenagers, married women seeking abortions, women convicted of manslaughter, and sister survivors of early childhood sibling loss may share a common conflict. These women may be in a state of incomplete mourning, unconsciously wishing to master a trauma by turning a passive experience into a life event they can control. Pregnancy can function as that life event. Replacement daughters and/or sister survivors can present as our patients with a search for or an avoidance of pregnancy as a crucial though unconscious issue. Literature written about this sequelae of early sibling death is reviewed according to psychosexual and object relationship stages. Common and uncommon consequences are discussed. Vignettes from the course of psychoanalytic therapy with women whose brothers had been accidently killed; whose sibling had died of metabolic disease; and those whose siblings had been relinquished to foster care are used to illustrate the immediate and long-term reactions. The range of these include varieties of separation anxiety as well as learning inhibitions in latency; exaggerated pseudo heterosexuality and other risk taking at puberty; problems in self-esteem regulation relative to either the idealized memory of the missing sibling or the omnipotence connected with survivor guilt. This paper focuses on the choice of a sexual partner and pregnancy issues as symptoms of reworking established conflicts around self-valuation and abandonment by sibling and grieving parents. As the family relationships around the lost sibling become less distorted in her analysis via transference resolution, so do the feelings about contemporary relationships. Becoming pregnant is then not an event burdened by the past.

Adaptation, Psychological↗