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Biomedical subjects

Giuseppe Benagiano

Publications and source records attributed to Giuseppe Benagiano.

9 recordsLinked to original sources
PubMed2006

History of adenomyosis.

Although the claim has been made that there are early descriptions of what today we call endometriosis and adenomyosis in theses presented in Europe in the late 17(th) and during the 18(th) centuries, the first description of the condition initially named 'adenomyoma' is that provided in 1860 by the German pathologist Carl von Rokitansky, who found endometrial glands in the myometrium and designated this finding as 'cystosarcoma adenoids uterinum'. Over the following 50 years 'adenomyoma' (and endometriosis) were considered pathologies separate from the so-called 'haemorrhagic ovarian cysts', and it was not until 1921 that this condition was recognized to be of endometriotic origin. The first systematic description of what is today known as adenomyosis was the work of Thomas Stephen Cullen who, at the turn of the 19(th) century, fully researched the 'mucosal invasion' already observed by a number of investigators in several parts of the lower abdominal cavity. Cullen clearly identified the epithelial tissue invasion as being made of 'uterine mucosa' and defined the mechanism through which the mucosa invades the underlying tissue. In 1925, 2 years before Sampson created the term 'endometriosis', Frankl created a name for the mucosal invasion of the myometrium and clearly described its anatomical picture; he called it 'adenomyosis uteri' and explained that 'I have chosen the name of adenomyosis, which does not suggest any inflammatory genesis as do terms like adenometritis, adenomyositis, adenomyometritis, still employed'. The current definition of adenomyosis was finally provided in 1972 by Bird who stated: 'Adenomyosis may be defined as the benign invasion of endometrium into the myometrium, producing a diffusely enlarged uterus which microscopically exhibits ectopic non-neoplastic, endometrial glands and stroma surrounded by the hypertrophic and hyperplastic myometrium'.

Endometriosis↗
PubMed2004

The new Italian IVF legislation.

Last February, the Italian Parliament gave final approval to a new Law regulating assisted reproduction technology. The new legislation fell short of the expectations of infertile couples and of all specialists in the field. There are three problems with the new Italian law; they involve social issues, human rights and the application of technology. The present paper focuses on the fact that the new rules infringe upon basic human rights and the proper application of IVF technology, because they mandate procedures that are against the best interest of the woman seeking pregnancy. The main point of controversy is the combination of a mandatory limit of three embryos for transfer, and an obligation to reimplant all produced embryos; cryopreservation of excess embryos is prohibited. Obviously, this decreases the chances of most women to achieve pregnancy, while at the same time it increases the number and complexity of procedures they need to undergo and may expose some to an unacceptable increase in the risk of multiple pregnancy. The new law is inspired by the desire to protect every newly produced embryo; this is a commendable aim, although it is in total opposition to a law passed over 25 years ago that liberalized voluntary termination of first trimester pregnancies. This means that today Italy has a law that protects every early, pre-implantation embryo, and another that allows the 'suppression' of every post-implantation one. From a technical point of view, given the low level of human fecundity, the only way to prevent the 'loss' of even one preimplantation embryo is to simply ban IVF altogether, an option that Italian legislators obviously did not have the courage to opt for. The tragedy is that Italian infertile couples are now confronted with new rules that not only severely limit the ability of physicians to correctly apply IVF technology, but are so confused that, depending on the interpretation, anyone may try to nullify the main ideological premise upon which the entire law has been structured.

Embryo Implantation↗
PubMed2003

Seventy-five microgram desogestrel minipill, a new perspective in estrogen-free contraception.

Progestin-only minipills have been available for over three decades, yet their use has been limited, because of a documented lower efficacy when compared to pills that combine estrogen and progestin. The availability of a new low-dose progestin-only minipill containing 75 microg desogestrel (DSG) offers a new perspective, since, in a large multicenter study, this minipill gave a crude Pearl index of 0.41 and an adjusted one of 0.14, which is comparable to indices found in clinical trials of oral contraceptives. This minipill also allows for a 12-hour tolerance time in taking the pill. The high effectiveness of the DSG minipill is attributable to an almost constant inhibition of ovulation, as shown by the absence of elevated progesterone circulating levels and inhibition of follicular growth in the vast majority of cycles studied. Since irregular bleeding patterns are observed with all minipills, patterns experienced with DSG 75 microg have been compared to those obtained with levonogestrel 30 microg. As expected, the more pronounced ovarian inhibition produced wider bleeding variability with DSG, but also less bleeding overall. The DSG minipill is suitable for lactating women and represents a valuable addition to oral contraception.

Adult↗
PubMed2002

Reproductive strategies for human survival.

Reproductive strategies for the human species have basically remained unaltered since Homo sapiens first appeared, probably in the valleys of Africa: males have always attempted to pass their genes to the largest feasible number of females, selecting those females capable of providing the best quality of oocytes; females invariably have sought a male capable of providing the best means of survival for herself and her offspring. This meant that human sexuality has been essentially conceptive, although it is reasonable to suppose that it began to lose this 'exclusive' connotation early in the cultural evolution of the species. Then, during the 20th century, major revolutions occurred: first, with the advent of contraception, sex without reproduction became a reality; then, with assisted reproduction technology, humans devised reproduction without sex; finally, very recently, women have begun to reproduce even in menopause. Additional strategies will, no doubt, soon be available, although we cannot as yet clearly see whether, or when, reproduction without sex and gametes, or in-vitro gestations will become available.

Humans↗
PubMed2002

[In memory of Maria Orlando: physical and psychological health in menopause].

Over the last fifty years life expectancy has increased by some 15 years for both sexes, causing an overall increase in the elderly. This will lead in the near future, to a number of economic, social and health problems, particularly in developing countries, especially to women whose life expectancy, in general, is longer than men's. Indeed, globally, already at the end of the twentieth century more that 60% of the population over 75 years of age were women. Among the elderly, and in particular among women in the third and fourth age, age-specific pathologies jeopardize the quality of life of many. In the long run, there are two types of problems that greatly affect women: cardiovascular and neoplastic diseases. Today, especially in industrialized countries, hormone replacement therapy is in widespread use, even though problems connected with the long-term use of estrogens are still to be fully understood. In particular recent controlled clinical trials have questioned the effectiveness of estrogens in preventing cardiovascular diseases. In conclusion, the years after menopause that in some cases can exceed 40 years, represent a new challenge for medicine and society; this is a challenge that must be met by giving precedence to human values, such as economic and social solidarity.

Adult↗
PubMed2002

[Use of phage libraries for the in vitro production of recombinant monoclonal antibodies of predetermined specificity].

The biotechnological generation of monoclonal antibodies of predetermined specificity has traditionally involved the production of hybridomas obtained by somatic cellular fusion of splenocytes from immunized animals with myeloma cell lines bearing selectable markers. Now, monoclonal antibodies could be genetically engineered thus bypassing all the natural systems for making antibodies. Filamentous bacteriophages provides a means to display and select large single chain fragments variable (scFv) repertoires created by cloning the natural rearranged V-immunoglobulin genes or introducing predetermined level of randomization into germline V-gene segments. In this article we demonstrated that by using a well characterized scFv phage synthetic library it is possible to generate in vitro recombinant human monoclonal antibodies directed to a large array of antigens showing different molecular weights, conformations and origins.

Antibodies, Monoclonal↗
PubMed2001

Menopause, a global perspective.

This paper attempts to provide a global perspective of the menopause as a period in a woman's life. It is growing in length, year after year and there is a need to place these years in the overall context of ageing. There are many fallacies about ageing. The most serious is the view describing old people exclusively as a burden for society, when in fact they can and should be considered as a resource. Women live longer almost everywhere in the world. Growing evidence indicates that the process of ageing differs in a considerable way in the two sexes. This difference may, at least in part, be due to sex-related differences in the regulation of stress response mediators. In addition, variability in the mitochondrial genome also displays a sex-specific impact on longevity. Restricting the discussion to longevity in the female, a paramount role must be given to sex hormones in improving a woman's ageing. Indeed, it is the fall in oestradiol production that qualitatively changes the ageing perspective in the human female, since oestrogen secretion plays a major role in guaranteeing a woman's psycho-physical equilibrium during the fertile period. These considerations represent the philosophical basis for post-menopausal hormone replacement therapy.

Journal Article↗