scholarly journals After egg collection, can we predict the chance of embryos for day 5 transfer or freezing?

2021 ◽  
Vol 2 (3) ◽  
pp. L1-L3
Author(s):  
I Robertson ◽  
F P Chmiel ◽  
Y Cheong
Keyword(s):  

Lay summary Even partway through an IVF cycle, at the point when a woman’s eggs have been collected, it is hard to provide reliable answers to the common question of ‘Am I likely to have a good embryo to transfer?’ Sometimes, it only takes one good egg to be successful. However, doctors and patients are acutely aware that low egg numbers, older age and having conditions such as endometriosis can stack the odds against success. We have developed a model to try and answer this question for those patients who wish for more information to help guide their expectations after egg collection. A new tool is presented to predict whether a woman having IVF treatment will have a good enough embryo either to transfer on day 5 or freeze. It was built using information from all 2015 to 2016 UK cycles and predicts using age, number of eggs collected and cause of subfertility.

2017 ◽  
Vol 8 (6) ◽  
pp. 56-61
Author(s):  
Lidya P. Khoroshinina ◽  
Alexander V. Shabrov ◽  
Leonid G. Buynov

The problem of children's starvation remains relevant and actual at the present time, as in the 21st century experts from the leading countries of the world coordinate their efforts to create programs aimed at eliminating extreme poverty and hunger of. At the same time, the analysis of obesity prevalence typical for the population of some countries of the world, indicates an increase in the number of obese people in both economically developed and developing countries. In this article we are talking about the common severe degree of abdominal obesity in people of older age groups, survivors in childhood, long periods of fasting. Studied 594 history and Protocol of autopsy of people in older age groups, born from 1927 to 1941 and the dead on the hospital for war veterans in St. Petersburg from 1989 to 2000. The whole array of documents was structured by sex, age, the fact of living in the blockaded Leningrad. Severe degree of obesity was considered to be exceeded more than 7 cm of thickness of deep abdominal subcutaneous layer of adipose tissue. It is well established that former young residents of the besieged Leningrad, regardless of gender, age, die sooner than men and women in the comparison groups; men who survived long periods of starvation in children, were dying earlier than men in the comparison group and earlier than women of the main group; women who have experienced a long period of starvation before the age of 11 years, often dying because of cardiovascular diseases than women in the corresponding subgroup comparisons; the emergence of pronounced obesity in older age-governmental groups from the former young residents of the blockaded Leningrad, determined by elk not only the fact of prolonged fasting, but child sex and age, which accounted for starvation.


Author(s):  
Silvia Carrión ◽  
Pere Clavé

Gastrointestinal (GI) symptoms and disorders are common, affecting over a third of people aged 65+. Clinical management is often complicated by co-existing cognitive and mood disorders, multimorbidity, polypharmacy, and frailty. The prevalence of oropharyngeal and upper oesophageal motility disorders, gastrointestinal motility, and immunity alterations, colonic adenomas, and GI tract cancers increase with age. Many GI functions are preserved in healthy older age, but may be altered by environmental/lifestyle exposures including drugs and toxic habits and frailty. This chapter complements others which deal with some of the common GI related issues affecting older people: epidemiology of malnutrition; anorexia of ageing; oral health and disease; malabsorption; faecal incontinence and constipation.


Author(s):  
Silvia Carrión ◽  
Pere Clavé

Gastrointestinal (GI) symptoms and disorders are common, affecting over a third of people aged 65+. Clinical management is often complicated by co-existing cognitive and mood disorders, multimorbidity, polypharmacy, and frailty. The prevalence of oropharyngeal and upper oesophageal motility disorders, gastrointestinal motility, and immunity alterations, colonic adenomas, and GI tract cancers increase with age. Many GI functions are preserved in healthy older age, but may be altered by environmental/lifestyle exposures including drugs and toxic habits and frailty. This chapter complements others which deal with some of the common GI related issues affecting older people: epidemiology of malnutrition; anorexia of ageing; oral health and disease; malabsorption; faecal incontinence and constipation.


1978 ◽  
Vol 48 ◽  
pp. 389-390 ◽  
Author(s):  
Chr. de Vegt

AbstractReduction techniques as applied to astrometric data material tend to split up traditionally into at least two different classes according to the observational technique used, namely transit circle observations and photographic observations. Although it is not realized fully in practice at present, the application of a blockadjustment technique for all kind of catalogue reductions is suggested. The term blockadjustment shall denote in this context the common adjustment of the principal unknowns which are the positions, proper motions and certain reduction parameters modelling the systematic properties of the observational process. Especially for old epoch catalogue data we frequently meet the situation that no independent detailed information on the telescope properties and other instrumental parameters, describing for example the measuring process, is available from special calibration observations or measurements; therefore the adjustment process should be highly self-calibrating, that means: all necessary information has to be extracted from the catalogue data themselves. Successful applications of this concept have been made already in the field of aerial photogrammetry.


Author(s):  
Ben O. Spurlock ◽  
Milton J. Cormier

The phenomenon of bioluminescence has fascinated layman and scientist alike for many centuries. During the eighteenth and nineteenth centuries a number of observations were reported on the physiology of bioluminescence in Renilla, the common sea pansy. More recently biochemists have directed their attention to the molecular basis of luminosity in this colonial form. These studies have centered primarily on defining the chemical basis for bioluminescence and its control. It is now established that bioluminescence in Renilla arises due to the luciferase-catalyzed oxidation of luciferin. This results in the creation of a product (oxyluciferin) in an electronic excited state. The transition of oxyluciferin from its excited state to the ground state leads to light emission.


Author(s):  
Ezzatollah Keyhani

Acetylcholinesterase (EC 3.1.1.7) (ACHE) has been localized at cholinergic junctions both in the central nervous system and at the periphery and it functions in neurotransmission. ACHE was also found in other tissues without involvement in neurotransmission, but exhibiting the common property of transporting water and ions. This communication describes intracellular ACHE in mammalian bone marrow and its secretion into the extracellular medium.


Author(s):  
R. Hegerl ◽  
A. Feltynowski ◽  
B. Grill

Till now correlation functions have been used in electron microscopy for two purposes: a) to find the common origin of two micrographs representing the same object, b) to check the optical parameters e. g. the focus. There is a third possibility of application, if all optical parameters are constant during a series of exposures. In this case all differences between the micrographs can only be caused by different noise distributions and by modifications of the object induced by radiation.Because of the electron noise, a discrete bright field image can be considered as a stochastic series Pm,where i denotes the number of the image and m (m = 1,.., M) the image element. Assuming a stable object, the expectation value of Pm would be Ηm for all images. The electron noise can be introduced by addition of stationary, mutual independent random variables nm with zero expectation and the variance. It is possible to treat the modifications of the object as a noise, too.


Author(s):  
Anthony A. Paparo ◽  
Judith A. Murphy

The purpose of this study was to localize the red neuronal pigment in Mytilus edulis and examine its role in the control of lateral ciliary activity in the gill. The visceral ganglia (Vg) in the central nervous system show an over al red pigmentation. Most red pigments examined in squash preps and cryostat sec tions were localized in the neuronal cell bodies and proximal axon regions. Unstained cryostat sections showed highly localized patches of this pigment scattered throughout the cells in the form of dense granular masses about 5-7 um in diameter, with the individual granules ranging from 0.6-1.3 um in diame ter. Tissue stained with Gomori's method for Fe showed bright blue granular masses of about the same size and structure as previously seen in unstained cryostat sections.Thick section microanalysis (Fig.l) confirmed both the localization and presence of Fe in the nerve cell. These nerve cells of the Vg share with other pigmented photosensitive cells the common cytostructural feature of localization of absorbing molecules in intracellular organelles where they are tightly ordered in fine substructures.


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