Abstract:
AIM:To compare embryonic developmental competence and clinical outcomes of oocytes matured in vivo (IVF oocytes) and those matured in vitro (IVM oocytes) from the same IVM/IVF cycles, and to analyze the clinical efficiency of a melatonin-supplemented in vitro maturation system combined with a modified IVM/IVF protocol. MAIN METHODS:We randomly recruited 22 patients undergoing IVM/IVF treatment protocol in our medical centre. The fertilization, cleavage and blastocyst formation rates, as well as clinical pregnancy, implantation and live birth/ongoing pregnancy rates were analysed and compared between IVF and IVM oocytes. We evaluated mitochondrial function indicators by fluorescence staining and confocal microscopy, including mitochondrial membrane potential, reactive oxygen species and calcium (Ca2+) levels in 15 IVF and 15 IVM oocytes. KEY FINDINGS:There were no significant differences in fertilization or blastocyst formation rates between the IVF and IVM groups, whereas the cleavage rate was significantly higher in the IVF versus IVM group (100% vs 93.4 ± 10.9%, p = 0.03). There were no significant differences in the clinical pregnancy, implantation or live birth/ongoing pregnancy rates between the two groups. The cumulative clinical pregnancy and ongoing pregnancy/live birth rate per pick-up oocyte in the IVM/IVF treatment cycles were 68.2% (15/22) and 54.5% (12/22), respectively. The reactive oxygen species and Ca2+ levels were significantly increased, and mitochondrial membrane potential was significantly decreased, in IVM compared with IVF oocytes. SIGNIFICANCE:The modified IVM/IVF protocol can be effectively applied to the treatment of some indicated patients and achieve ideal clinical outcomes, even though the developmental potential of IVM oocytes may not be as high as IVF oocytes.
journal_name
Life Scijournal_title
Life sciencesauthors
Li X,Mu Y,Elshewy N,Ding D,Zou H,Chen B,Chen C,Wei Z,Cao Y,Zhou P,Zhang Zdoi
10.1016/j.lfs.2020.118706subject
Has Abstractpub_date
2021-01-01 00:00:00pages
118706eissn
0024-3205issn
1879-0631pii
S0024-3205(20)31459-4journal_volume
264pub_type
杂志文章,随机对照试验相关文献
LIFE SCIENCES文献大全abstract::Repeated, low-intensity electrical stimulation of the heart gradually leads to the development of electrocardiographic abnormalities that culminate in cardiac arrhythmias, mainly A-V block in the isolated heart frog and ventricular and supraventricular tachyarrhythmias in the canine heart in situ. The pattern of devel...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(88)90437-7
更新日期:1988-01-01 00:00:00
abstract:AIMS:To investigate the effects of high doses of pentazocine on antinociception induced by a high dose of morphine and the role of the kappa-opioid receptors (KORs) in these effects in mice. MAIN METHODS:Sixty-six C57BL/6J mice were pretreated with a KOR antagonist, nor-binaltorphimine (nor-BNI) (10mg·kg(-1)), or a no...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/j.lfs.2015.02.023
更新日期:2015-06-01 00:00:00
abstract::Chromatin organization was examined in confluent cultures of embryonic lung fibroblasts in the middle and at the end of their replicative lifespan. Age-related modifications resulted in an unusually wide spacing of the chromatin threads induced by a mild loosening treatment and an increased sensitivity of the nucleoso...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(83)90396-x
更新日期:1983-06-13 00:00:00
abstract::Effects of lithium (Li) deficiency and/or immobilization stress on the thymus weight and differential blood count of rats were studied. The thymus weight of the rats fed a low Li diet were lighter than those of rats fed a Li supplemented diet, whether the rats were exposed to stress or not. Of the rats not exposed to ...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/s0024-3205(97)00740-6
更新日期:1997-01-01 00:00:00
abstract::Matrikines, peptides originating from the fragmentation of extracellular matrix proteins are identified to play important role in both health and disease. They possess biological activities, much different from their parent protein. Identification of such bioactive cryptic regions in the extracellular matrix proteins ...
journal_title:Life sciences
pub_type: 杂志文章,评审
doi:10.1016/j.lfs.2018.10.056
更新日期:2018-12-01 00:00:00
abstract::Orthodontic tooth movement induced alveolar bone resorption and formation around the teeth applied mechanical force. Although mechanical force can promote bone formation, the molecular mechanism that underlies this phenomenon is not fully understood. The purposes of this study were to determine how mechanical stress a...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/j.lfs.2005.10.024
更新日期:2006-05-01 00:00:00
abstract::The mechanism by which benzoate enhances total nitrogen excretion was investigated in-situ and in separated rat renal proximal tubules. Orally administered benzoate augmented NH4+, urea and hippurate excretion 2, 1.9 and 76 fold respectively, as compared to baseline for control. Hippurate had similar effects. Benzoate...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(91)90086-q
更新日期:1991-01-01 00:00:00
abstract:AIMS:Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) has been considered to be one of the most promising candidates in research on treatments for cancer, including renal cell carcinoma (RCC). However, many cells are resistant to TRAIL-induced apoptosis which limits the potential application of TRAIL in ...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/j.lfs.2014.02.002
更新日期:2014-04-01 00:00:00
abstract::In the present investigation, Fischer-344 rats were trained to discriminate 10.0 mg/kg of ibogaine from water using a pretreatment time of 60 minutes. Analysis of dose response data generated an ED50 of 4.6 mg/kg. The time course of the ibogaine (10.0 mg/kg) cue was also determined. The stimulus reached a maximum leve...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/s0024-3205(96)00703-5
更新日期:1997-01-01 00:00:00
abstract::Rat aortic smooth muscle homogenates and membrane preparations contain a phospholipase C which hydrolyzes phosphatidylinositol 4,5-biphosphate (PIP2). We discovered that guanyl-5'yl-imidodiphosphate (Gpp(NH)p) activated the hydrolysis of exogenous PIP2 but not of phosphatidylinositol (PI) in rat aortic membranes. Furt...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(87)90417-6
更新日期:1987-08-03 00:00:00
abstract::In primary cultured bovine adrenal chromaffin cells (BACC), pituitary adenylate cyclase activating polypeptide 1-38 (PACAP) produced a dose related increase in tyrosine hydroxylase (TH) Vmax when measured 48 hours after the beginning of the treatment; a significant increase was observed with 0.5 nM and the maximal ind...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(94)00614-8
更新日期:1994-01-01 00:00:00
abstract::Extracts of Chan Su, a traditional Chinese medication used as a topical anesthetic and cardiac medication, were incubated with cardiomyocytes that had been loaded with a calcium specific fluorescent probe. Calcium transients were measured by real-time fluorescence spectrophotometry following treatment. The transients ...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/s0024-3205(02)02302-0
更新日期:2002-12-27 00:00:00
abstract::Immunoreactive atrial natriuretic peptide (ir-ANP) was measured in the follicular fluid of pig ovarian follicle, and rabbit ovarian homogenates and perfusates using a specific radioimmunoassay (RIA). Serial dilution curves made with the extracts of follicular fluid, ovarian homogenates and perfusates using SepPak C18 ...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(89)90425-6
更新日期:1989-01-01 00:00:00
abstract::The expression of the corticotropin-releasing hormone (CRH) gene and the arginine vasopressin (AVP) gene in the hypothalamus examined in bilateral nephrectomized rats by in situ hybridization histochemistry. The expression of the CRH gene was significantly increased in the parvocellular part of the paraventricular nuc...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/s0024-3205(02)02287-7
更新日期:2002-12-20 00:00:00
abstract::The effect on thermonociceptive threshold of intrathecally (i.t.) administered angiotensin II (Ang II) was assessed in the rat tail-flick test. Rats were pretreated, 15 min earlier, with i.t. naloxone (opiate antagonist), losartan (Ang II selective antagonist at AT1 receptor) or [Sar1, Leu8] Ang II (non selective Ang ...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/s0024-3205(97)00410-4
更新日期:1997-01-01 00:00:00
abstract::Using a specific radioimmunoassay, we measured concentrations of plasma 7B2 (a novel pituitary polypeptide) immunoreactivity (7B2-IR) in normal human subjects, patients with chronic renal failure and those with liver cirrhosis. Mean (+/- SEM) values of plasma 7B2-IR in normal healthy men and women were 55.8 +/- 1.2 pg...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(87)90685-0
更新日期:1987-08-24 00:00:00
abstract::Ovine fetal renal responses to ANF decrease during the last third of gestation, although circulating fetal plasma atrial natriuretic factor (ANF) levels are higher than in the maternal circulation, and do not change with gestation. This study examined whether previously reported maturational changes in fetal renal res...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(94)00420-x
更新日期:1994-01-01 00:00:00
abstract::Intestinal mucosal capsaicin-sensitive afferent nerves mediate, in part, the protective mesenteric hyperemia after intraduodenal acidification. Mechanisms associated the sensory neuropeptides, e.g. calcitonin gene-related peptide (CGRP), substance P, and ruthenium red-sensitive cation channels contribute to acid-induc...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/s0024-3205(02)02106-9
更新日期:2002-10-18 00:00:00
abstract::Ethanol consumption was correlated with changes in acyl group profiles of phosphatidylcholine and triacylglycerols in serum of Sinclair(S-1) miniature boars. Serum triacylglycerols in the control pigs were high in linoleate (18:2) (48%) and low in stearate (18:0 (3%). Upon feeding with 10% (w/v) ethanol ad lib for two...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(84)90198-x
更新日期:1984-02-27 00:00:00
abstract::The aim of this study was to investigate whether the A1/A2 receptor agonist, 5'-N-ethylcarboxamidoadenosine (NECA), and the selective A1 agonist, N6-cyclopentyladenosine (CPA), induced physical dependence by quantifying specific antagonist-precipitated withdrawal syndromes in conscious rats. In addition, the presence ...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/s0024-3205(01)01155-9
更新日期:2001-07-06 00:00:00
abstract::Differences in prevalence and mortality from coronary artery disease (CAD) were observed among the different Israeli ethnic groups. The incidence of CAD in Israel is highest among Ashkenazi Jews and is much lower among Yemenite Jews. In this present study, we selected 15 single nucleotide polymorphisms (SNPs) from 14 ...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/j.lfs.2004.02.012
更新日期:2004-07-09 00:00:00
abstract::The present study examines the signal transduction mechanism that is involved in the growth of vascular smooth muscle cells exposed to 4-hydroxynonenal (HNE) in vitro. This aldehyde component of oxidized low-density lipoprotein has been identified in atherosclerotic lesion. Exposure to HNE caused ERK, JNK, and p38 MAP...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/s0024-3205(01)01166-3
更新日期:2001-06-29 00:00:00
abstract:AIMS:With the purpose of exploring combinatorial options that could enhance the bactericide efficacy of linezolid against Gram-negative bacteria, we assessed the extent of combination of nano-silver and linezolid. MAIN METHODS:In this study, we selected Escherichia coli MTCC 443 as a model to study the combinatorial e...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/j.lfs.2019.05.072
更新日期:2019-08-01 00:00:00
abstract::Thymol induced superoxide production (O2-) by blood leukocytes was examined in various primates including man. Leukocytes of chimpanzee and hamadryas baboon cells showed only 35% of the maximal O2- production rate obtained in human cells, and those of the Japanese monkey and orang-utan failed to respond. In contrast, ...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/0024-3205(87)90735-1
更新日期:1987-09-28 00:00:00
abstract::Insulin remains a predominant life-saving medication for type 1 and type 2 Diabetes Mellites. Natural insulin secretion limits the fluctuation of the narrow and high surge of blood glucose levels. However, imitating the same by external insulin remains a challenge as a variety of insulin analogs (rapid acting, short a...
journal_title:Life sciences
pub_type: 杂志文章,评审
doi:10.1016/j.lfs.2019.01.011
更新日期:2019-02-15 00:00:00
abstract::The novel guanidines N-(3,4-dimethoxy-2-chlorobenzylideneamino)-guanidine (ME 10092) and N-(3,4-dimethoxy-2-chlorobenzylideneamino)-N1-hydroxyguanidine (PR5) were recently reported to exhibit promising cardioprotective activities in myocardial ischaemia and reperfusion in rats. The current study investigated for the f...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/j.lfs.2004.03.030
更新日期:2004-09-10 00:00:00
abstract::NSAIDs can elevate blood pressure through mechanisms such as renal vasoconstriction and sodium retention. These effects are particularly evident in hypertensive individuals. Nitric oxide-releasing NSAID derivatives have been shown to have greatly reduced toxicity in the gastrointestinal tract and kidney. We therefore ...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/s0024-3205(98)00072-1
更新日期:1998-01-01 00:00:00
abstract::SARS-CoV-2 infection or COVID-19 has become a worldwide pandemic; however, effective treatment for COVID-19 remains to be established. Along with acute respiratory distress syndrome (ARDS), new and old cardiovascular injuries are important causes of significant morbidity and mortality in COVID-19. Exploring new approa...
journal_title:Life sciences
pub_type: 杂志文章,评审
doi:10.1016/j.lfs.2021.119130
更新日期:2021-01-26 00:00:00
abstract:AIMS:The purpose of this study was to investigate mechanisms of chronic alcohol-induced cardiac remodeling and dysfunction. We also sought to determine the role of cardiac fibroblasts, which play a dynamic role in cardiac remodeling, in mediating these effects. MAIN METHODS:Adult male Wistar rats were exposed to ethan...
journal_title:Life sciences
pub_type: 杂志文章
doi:10.1016/j.lfs.2020.117330
更新日期:2020-03-15 00:00:00
abstract::The available preclinical literature on the antihyperlipidemic properties of beta-pyridylcarbinol is reviewed. Similarities between the pharmacological profiles for beta-pyridylcarbinol and nicotinic acid, and evidence for the metabolic conversion of beta-pyridylcarbinol to nicotinic acid are discussed. Several review...
journal_title:Life sciences
pub_type: 杂志文章,评审
doi:10.1016/0024-3205(85)90026-8
更新日期:1985-11-25 00:00:00