8 results on '"Comi R"'
Search Results
2. Human oocyte cryopreservation: comparison between slow and ultrarapid methods.
- Author
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Fadini, R., Brambillasca, F., Renzini, M. Mignini, Merola, M., Comi, R., De Ponti, E., and Dal Canto, M. B.
- Subjects
- *
OVUM , *CRYOPRESERVATION of organs, tissues, etc. , *HUMAN reproductive technology , *HUMAN in vitro fertilization , *TRANSPLANTATION of organs, tissues, etc. - Abstract
The success of reproductive technologies is facilitated by the cryopreservation of embryos and gametes. In Italy, where legislation prohibits zygote and embryo cryopreservation, clinics have extensively introduced oocyte cryopreservation. Two different strategies of oocyte cryopreservation are available: slow freezing or ultrarapid cooling (vitrification). Although the results are very encouraging with both methods, there is still controversy regarding both the procedure itself and the most suitable method to use. This study reports the routine application of the two different oocyte cryopreservation methods in programmes running in two consecutive periods. The study centre carried out 286 thawing cycles for a total of 1348 thawed oocytes cryopreserved by the slow-freezing method and 59 warming cycles for a total of 285 warmed oocytes cryopreserved by vitrification. Comparison of the outcomes obtained with the slow-freezing method versus vitrification in women who underwent IVF for infertility showed survival, fertilization, pregnancy and implantation rates of 57.9% versus 78.9% (P < 0.0001), 64.6% versus 72.8% (P = 0.027), 7.6% versus 18.2% (P = 0.021) and 4.3% versus 9.3% (P = 0.043) respectively. These results suggest that oocyte vitrification is associated with a better outcome than the slow-freezing method. [ABSTRACT FROM AUTHOR]
- Published
- 2009
- Full Text
- View/download PDF
3. Outcome of cycles of oocyte in vitro maturation requiring testicular sperm extraction for nonobstructive azoospermia.
- Author
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Fadini R, Colpi E, Mignini Renzini M, Coticchio G, Comi R, Mastrolilli M, Guarnieri T, Villa A, and Dal Canto M
- Subjects
- Abortion, Spontaneous etiology, Adult, Cells, Cultured, Cryopreservation, Embryo Culture Techniques, Embryo Transfer, Female, Humans, Italy, Live Birth, Male, Pregnancy, Pregnancy Rate, Semen Preservation, Treatment Outcome, Azoospermia therapy, Oocyte Retrieval adverse effects, Oocytes physiology, Sperm Injections, Intracytoplasmic adverse effects, Sperm Retrieval adverse effects
- Abstract
Objective: To assess the applicability of oocyte IVM in case of nonobstructive azoospermia (NOA)., Design: Case series., Setting: Private IVF unit., Patient(s): All male partners were affected by NOA. Twenty-one women (20 normo-ovulatory and 1 with polycystic ovary) underwent 27 IVM treatments. The outcome of controlled ovarian stimulation (COS) cycles in normo-ovulatory women whose partners were affected by NOA was assessed for comparison., Intervention(s): Spermatozoa from testicular sperm extraction (TESE) samples were retrieved and cryopreserved before treatment., Main Outcome Measure(s): Rates of fertilization, pregnancy per cycle and transfer, and implantation., Result(s): Twenty-seven IVM-TESE cycles were carried out in 21 women. Fertilization rate was 64.4%. In compliance with national legislation, no more than three oocytes were inseminated in each cycle and all developing embryos were transferred. Six single clinical pregnancies were ascertained (22.2% and 27.3% pregnancy rates per cycle and per transfer, respectively). One pregnancy ended in abortion. The others developed to term and gave rise to five healthy babies. Sixty couples underwent standard COS-TESE treatment. Rates of fertilization, clinical pregnancy per cycle, implantation, and abortion were 64.6%, 20.0%, 11.3%, and 16.7%, respectively. Eleven babies were born from ten pregnancies., Conclusion(s): Oocyte IVM may represent an option in NOA cases., (Copyright © 2011 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.)
- Published
- 2011
- Full Text
- View/download PDF
4. IVM--the first choice for IVF in Italy.
- Author
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Dal Canto MB, Mignini Renzini M, Brambillasca F, Cepparo H, Comi R, Villa A, Rangoni G, Mastrolilli M, Crippa M, de Ponti E, Nielsen HI, and Fadini R
- Subjects
- Adult, Embryo Transfer, Female, Fertilization in Vitro economics, Fertilization in Vitro legislation & jurisprudence, Humans, Italy, Oocytes growth & development, Ovulation Induction adverse effects, Ovulation Induction economics, Pregnancy, Pregnancy Rate, Pregnancy, Multiple statistics & numerical data, Fertilization in Vitro methods, Infertility, Female therapy
- Abstract
In March 2004, a new law was introduced in Italy to regulate assisted reproduction; at present it is impossible to use more than a maximum of three oocytes per IVF cycle, nor can embryos or prezygotes (2PN cells) be selected or cryopreserved. The prohibitions introduced by the new law have, on the one hand, reduced the expectations of success of current techniques and, on the other hand, stimulated clinicians and embryologists to work on new therapeutic strategies so as to offer the highest chances of success with the lowest risks. In-vitro maturation (IVM) of oocytes fits very well with these new requirements: ovarian stimulation is avoided and the handling of spare oocytes is facilitated. The IVM protocol is an intriguing alternative to conventional IVF techniques, since it removes the side-effects of drug stimulation, especially ovarian hyperstimulation syndrome, and it also reduces the costs of the entire procedure, both in terms of 'time consumption' and 'patient/society costs for drugs'. In the authors' IVF centre the IVM technique has been used for more than a year, with significant success in terms of maturation and fertilization rates, percentage of embryo transfers, number of pregnancies and, finally, healthy babies born.
- Published
- 2006
- Full Text
- View/download PDF
5. [Ocular diseases in public health].
- Author
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Comi R and Di Vito Mucedola C
- Subjects
- Blindness epidemiology, Developed Countries, Developing Countries, Eye Diseases prevention & control, Global Health, Humans, Italy, Eye Diseases epidemiology, Public Health
- Abstract
The renewed sensibility towards the quality of life of disability has moved the authors to undertake a review to assess the low vision-blindness phenomenon as a public health problem. Particular attention has been paid to the aetiology and to the geographic distribution worldwide and in Italy. The prevention aspects of the main ocular diseases widespread in the industrialized countries, including the interventions focused on the patient and on the rehabilitation, have been analysed.
- Published
- 2003
6. [Noise and communal dining facilities].
- Author
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Cannella C, Meconi S, Percoco A, Comi R, and Graziani MP
- Subjects
- Cooking instrumentation, Facility Design and Construction legislation & jurisprudence, Facility Design and Construction standards, Hearing Loss, Noise-Induced prevention & control, Humans, Italy, Maximum Allowable Concentration, Occupational Diseases prevention & control, Public Health legislation & jurisprudence, Restaurants legislation & jurisprudence, Stress, Psychological etiology, Stress, Psychological prevention & control, Noise adverse effects, Noise, Occupational, Occupational Health legislation & jurisprudence, Restaurants standards
- Abstract
Noise is a sound which is unwanted, either because of its effect on humans, its effect on fatigue or multifunctions of physical equipment, or its interference with the perception or detection of other sounds. It is a part of environmental pollution which can, in certain circumstances, reach worrying levels for the population (130 dB cause pain). Unsuitable exposure to noise for even short periods of time is responsible for symptomology involving the hearing organs (hypoacusis) and other parts of the body such as the cardiovascular, muscular and digestive systems via the connection between the central and the autonomous nervous systems. Noise in communal eating areas can be classed as coming from 3 sources: 1) operation of cooking machinery; 2) banging of pans and equipment; 3) voices of both staff and diners. The intensity of noise on these premises varies generally between 60 and 80 dB (discomfort threshold). The Regulations governing this subject are D.Lgs n.277 of 15/8/1991 regarding the protection of employees, D.P.C.M. of 1/3/1991 which establishes the maximum levels of noise both in the home and outside, and the more recent D.P.C.M. of 21/5/1999 referring to noise in public places, which includes restaurants. To contain the exposure to noise in public eating places, we believe that action should be taken at legal levels with stricter limits than the recently passed level of 105 dB, in the building planning departments and also with technological intervention in order to reduce the effects that noise has on the auditive and extra-auditive organs and thus limit possible sublimal messages which certainly do not benefit the psycho-physical well-being of the diners.
- Published
- 2000
7. [The food poisoning problem in communal restaurant facilities].
- Author
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Melino C, Venza F, Comi R, and Sturabotti M
- Subjects
- Bacterial Infections diagnosis, Bacterial Infections epidemiology, Bacterial Infections etiology, Bacterial Infections microbiology, Bacterial Infections prevention & control, Food Preservation, Foodborne Diseases diagnosis, Foodborne Diseases epidemiology, Foodborne Diseases microbiology, Foodborne Diseases prevention & control, Humans, Incidence, Italy epidemiology, Foodborne Diseases etiology, Restaurants
- Abstract
In view of the considerable development during the last few years of communal feeding facilities (factory, school, and university canteens, hospital kitchens, self service, fast food, and restaurants) in our country as well as elsewhere, the authors wish to supply detailed information on the incidence of food poisoning in Italy from 1979 to 1988 in such facilities. They report the findings of an epidemiological study they carried out in Rome and Lazio [correction of Latium] covering this period and which by and large confirmed the trend observed at the national level. As to prevention, the most recent techniques for food conservation are described.
- Published
- 1990
8. [Minor salmonellosis in childhood: epidemiological and preventive considerations].
- Author
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Comi R and Filippini M
- Subjects
- Carrier State epidemiology, Child, Child, Preschool, Cohort Studies, Disease Outbreaks, Female, Food Contamination, Food Microbiology, Humans, Infant, Infant, Newborn, Italy epidemiology, Male, Salmonella classification, Salmonella isolation & purification, Salmonella Food Poisoning epidemiology, Salmonella Food Poisoning prevention & control, Salmonella Infections prevention & control, Salmonella Infections transmission, Species Specificity, Salmonella Infections epidemiology
- Abstract
The diffusion of so-called minor salmonellosis in Italy, 18,135 isolates in 1985 -and the serious illness that they may induce in correlation to age and state of health have moved the Authors to consider their epidemiology and discuss their prevention. The morbidity per 100,000 population, from about 10 in the early '70s, has grown to a peak of 22.22 in 1976 and, after having irregularly reduced to a value of 16.76 in 1984, has grown again to 22.23 in 1986. Travelling abroad, modern breeding technologies, animals and raw food trade among States are frequently indicated as the most important factors in spreading salmonellas. The rise of morbidity in Italy has indeed occurred in concomitance with the renewal of breeding activity realized by means of animals imported from abroad, and moreover, presence of strains of S. typhimurium identical to those which caused serious epidemic outbreaks in bovine and humans in Great Britain and other Countries of North Europe is now ascertained. Recently, cooked ham prepared with raw meat contaminated with two serotypes uncommon in Italy (S. corvallis and S. mbandaka), imported from Rumania and Holland, has been the cause of two foodborne outbreaks each showing both of the above contaminants. At present, salmonellosis is quite common in large urban areas and is supported by person-to-person spread; more than 50% of the yearly isolates occurs in childhood Number of cases, their ages, sex distribution, and relative morbidity, have been calculated in Tab. 1, 2, 3, 4. From 1976 to 1986 the withdraw of S. wien, the research of excretors, and the improvement of quality of life, are all factors that may have favoured the lowering of morbidity at age zero, while the increasing of the same index at the ages 1-5 and 6-10 may correlate to the high number of serotypes of Salmonella now endemic in Italy. The diffusion of fast-food and the habit, recently acquired in our Country, to buy at shop cooked foods ready to eat, may be involved too. Age distribution shows a highest number of isolates at age zero and a still high number at ages 1, 2, and 3. Throughout childhood morbidity is lower in females. From 1975 on, the percentage increase of number of children admitted for minor salmonellosis is also indicated by surveys held at many Hospitals in Italy.(ABSTRACT TRUNCATED AT 400 WORDS)
- Published
- 1989
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