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https://www.readbyqxmd.com/read/28630707/evidence-of-endometrial-amino-acid-metabolism-and-transport-modulation-by-peri-ovulatory-endocrine-profiles-driving-uterine-receptivity
#1
Moana Rodrigues França, Maressa Izabel Santos da Silva, Guilherme Pugliesi, Veerle Van Hoeck, Mario Binelli
BACKGROUND: In beef cattle, changes in the periovulatory endocrine milieu are associated with fertility and conceptus growth. A large preovulatory follicle (POF) and the resulting elevated concentrations of progesterone (P4) during diestrus positively affect pregnancy rates. Amino acids (AA) are important components of maternally derived secretions that are crucial for embryonic survival before implantation. The hypothesis is that the size of the POF and the concentration of P4 in early diestrus modulate the endometrial abundance of SLC transcripts related to AA transport and metabolism and subsequently impact luminal concentrations of AA...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28627078/gas-adsorption-in-mg-porphyrin-based-porous-organic-frameworks-a-computational-simulation-by-first-principles-derived-force-field
#2
Yujia Pang, Wenliang Li, Jingping Zhang
A novel type of porous organic frameworks, based on Mg-porphyrin, with diamond-like topology, named POF-Mgs is computationally designed, and the gas uptakes of CO2 , H2 , N2 , and H2 O in POF-Mgs are investigated by Grand canonical Monte Carlo simulations based on first-principles derived force fields (FF). The FF, which describes the interactions between POF-Mgs and gases, are fitted by dispersion corrected double-hybrid density functional theory, B2PLYP-D3. The good agreement between the obtained FF and the first-principle energies data confirms the reliability of the FF...
June 19, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/28591755/a-novel-homozygous-missense-fshr-variant-associated-with-hypergonadotropic-hypogonadism-in-two-siblings-from-a-brazilian-family
#3
Monica M França, Antonio M Lerario, Mariana F A Funari, Mirian Y Nishi, Amanda M Narcizo, Maricilda P de Mello, Gil Guerra-Junior, Andrea T Maciel-Guerra, Berenice B Mendonça
Hypergonadotropic hypogonadism (HH) is defined by increased gonadotropin levels in men and women. Primary ovarian failure (POF) is a form of female infertility characterized by amenorrhea, hypoestrogenism, and elevated gonadotropin levels in women under the age of 40 years. Although several genes have been associated with POF, its causative genes remain to be identified. Here, we used whole-exome sequencing (WES) to study a consanguineous family with a 46,XX girl and a 46,XY man affected by HH. All exons of both siblings and their parents were captured and massively sequenced by WES, and the candidate variant was confirmed by Sanger sequencing...
June 8, 2017: Sexual Development: Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation
https://www.readbyqxmd.com/read/28557296/bottom-up-construction-of-tempo-built-in-porous-organic-frameworks-as-a-cathode-for-lithium-sulphur-batteries
#4
Baolong Zhou, Xiang Hu, Guang Zeng, Shiwu Li, Zhenhai Wen, Long Chen
Two redox-active radical (TEMPO) built-in porous organic frameworks (POFs), which feature hierarchical porous structures, were synthesized via a facile bottom-up strategy and were studied as cathode materials for lithium-sulphur (Li-S) batteries. The sulphur loading in these two POFs can reach up to 61% benefitting from their large pore volume. For the existence of highly densed docking sites of TEMPO, sulphur could be covalently restrained within the porous networks and efficiently inhibited the shuttle effect, therefore significantly improving the cycling performance...
May 29, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28554094/serum-lactate-dehydrogenase-is-predictive-of-persistent-organ-failure-in-acute-pancreatitis
#5
Jing Cui, Jiongxin Xiong, Yushun Zhang, Tao Peng, Min Huang, Yan Lin, Yao Guo, Heshui Wu, Chunyou Wang
PURPOSE: Elevated serum lactate dehydrogenase (LDH) has been reported in a serious of clinical diseases. However, the relationship between LDH and the incidence of persistent organ failure (POF) in acute pancreatitis (AP) has not been characterized. MATERIALS AND METHODS: A total of 105 patients with AP who presented within 72h from symptom onset between 2014 and 2015 were included in this retrospective study. Demographic parameters and laboratory data on admission were compared between patients with and without POF...
May 6, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28487877/preoperative-fasting-among-adult-patients-for-elective-surgery-in-a-kenyan-referral-hospital
#6
George Njoroge, Lucy Kivuti-Bitok, Samuel Kimani
Background. Preoperative fasting (POF) is physiologically and precautionary important during anesthesia and surgery. POF from midnight has been practiced despite the recommended shorter practice. Objective. Assessing preoperative fasting among adult patients scheduled for elective surgery at Kenyatta National Hospital (KNH). Methods. A descriptive cross-sectional study involving 65 surgical patients. A questionnaire of mixed questions on demographics, reasons, source of instructions, opinion on instructions, time, premedication practices, outcome, and complains on NPO was used...
2017: International Scholarly Research Notices
https://www.readbyqxmd.com/read/28483347/the-potentiality-of-two-dimensional-preantral-follicle-culture-as-an-in-vitro-model-in-predicting-premature-ovarian-failure
#7
Ting Zhang, Ying Chen, Yang Yang, Zhonghui Wang, Qi Pan, Sichong Xu, Zuyue Sun
The purpose of this study is to identify the potential of a two-dimensional preantral follicle culture as an in vitro model of predicting premature ovarian failure. The two-dimensional preantral follicles culture method was established by cultivating preantral follicles collected from ICR F1 hybrids (aged 12-14days) for 12days. The preantral follicles were incubated with 0.54mg/ml cyclophosphamide, 0.5mg/ml busulfan, 0.12mg/ml cisplatin, 3.12mg/ml 4-vinylcyclohexene diepoxide, 5mg/ml D (+) galactose, and 0...
May 5, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/28479757/premature-ovarian-failure-an-unusual-manifestation-of-systemic-sclerosis
#8
Aruna Nigam, Anupam Prakash, Shikha Sharma, Narendra Kumar
A 31-year-old woman presented with secondary amenorrhoea and inability to conceive, which was of 3 years duration. She had Raynaud's phenomenon for 16 years, primary hypothyroidism for 5 years, digital ulcers for 4 years and skin tightening for 2 years. She had an expressionless face, with loss of wrinkles and restriction of the mouth opening along with flexion contractures of the hands and the terminal digit resorptions. Investigations showed Antinuclear antibodies (ANA) and anti-Scl 70 positivity confirming the presence of systemic sclerosis (SSc)...
January 2017: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/28477237/integration-of-radiotherapy-and-chemotherapy-for-abdominal-lymph-node-recurrence-in-gastric-cancer
#9
J Lee, H I Yoon, S Y Rha, W J Hyung, Y C Lee, J S Lim, H S Kim, W S Koom
PURPOSE: Abdominal lymph node (ALN) recurrence in gastric cancer (GC) is rare and usually unresectable. We investigated the effects of integration of radiotherapy (RT) and chemotherapy against ALN recurrence in GC. METHODS: We retrospectively categorized GC patients with ALN recurrence treated between 2005 and 2013 into two groups: those treated with integration of RT and chemotherapy (RCT) and those who received systemic chemotherapy only (CT). The median follow-up period after ALN recurrence for all patients was 20 months...
May 5, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28471372/in-fiber-optic-salinity-sensing-a-potential-application-for-offshore-concrete-structure-protection
#10
Dong Luo, Peng Li, Yanchao Yue, Jianxun Ma, Hangzhou Yang
The protection of concrete structures against corrosion in marine environments has always been a challenge due to the presence of a saline solution-A natural corrosive agent to the concrete paste and steel reinforcements. The concentration of salt is a key parameter influencing the rate of corrosion. In this paper, we propose an optical fiber-based salinity sensor based on bundled multimode plastic optical fiber (POF) as a sensor probe and a concave mirror as a reflector in conjunction with an intensity modulation technique...
May 4, 2017: Sensors
https://www.readbyqxmd.com/read/28454580/association-of-skewed-x-chromosome-inactivation-with-fmr1-cgg-repeat-length-and-anti-mullerian-hormone-levels-a-cohort-study
#11
David H Barad, Sarah Darmon, Andrea Weghofer, Gary J Latham, Filipovic-Sadic, Qi Wang, Vitaly A Kushnir, David F Albertini, Norbert Gleicher
BACKGROUND: Premutation range CGGn repeats of the FMR1 gene denote risk toward primary ovarian insufficiency (POI), also called premature ovarian failure (POF). This prospective cohort study was undertaken to determine if X-chromosome inactivation skew (sXCI) is associated with variations in FMR1 CGG repeat length and, if so, is also associated with age adjusted antimüllerian hormone (AMH) levels as an indicator of functional ovarian reserve (FOR). METHODS: DNA samples of 58 women were analyzed for methylation status and confirmation of CGGn repeat length...
April 28, 2017: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/28446147/serum-albumin-a-good-indicator-of-persistent-organ-failure-in-acute-pancreatitis
#12
Shoukang Li, Yushun Zhang, Mengjiao Li, Chao Xie, Heshui Wu
BACKGROUND: To evaluate the predictive value of serum albumin (ALB) for persistent organ failure (POF) in acute pancreatitis (AP). METHODS: We selected 158 patients with AP in this retrospective study from Jan.1st, 2015 to Dec.31st, 2015. Forty-six patients were diagnosed with POF. All the values of laboratory parameters were measured upon admission to hospital. And 48 h after admission, we examined serum albumin of each patient again, called 'ALB2'. Uni-and multi-variate logistic regression were used to evaluate the impact of ALB to predict POF...
April 26, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28442176/mastitis-outcomes-on-pre-ovulatory-follicle-diameter-estradiol-concentrations-subsequent-luteal-profiles-and-conception-rate-in-buffaloes
#13
Mohamed Mohsen Mansour, Moustafa M Zeitoun, Fekry M Hussein
The objectives of this study was to investigate the outcome of mastitis, in its clinical or subclinical forms, on the mean diameter of pre-ovulatory follicle (POF), plasma estradiol concentration on the day of estrus, subsequent luteal profile and subsequent conception rate in buffaloes. Sixty dairy buffalo (Bubalus bubalus) conducted in this study were divided into three groups {healthy (H), n=20; subclinical mastitis (SCM), n=18; and clinical mastitis (CM), n=22}. Ultrasonography of ovaries revealed that mean diameter of POF was larger (P<0...
April 14, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28442063/peri-ovulatory-endocrine-regulation-of-the-prostanoid-pathways-in-the-bovine-uterus-at-early-dioestrus
#14
Milena Lopes Oliveira, Fabio Luiz D'Alexandri, Guilherme Pugliesi, Veerle Van Hoeck, Fernando Silveira Mesquita, Claudia M B Membrive, João Alberto Negrão, Craig E Wheelock, Mario Binelli
We hypothesised that different endocrine profiles associated with pre-ovulatory follicle (POF) size would impact on uterine prostanoid pathways and thereby modulate the histotroph composition. Beef cows (n=15 per group) were hormonally manipulated to have small (SF-SCL group) or large (LF-LCL group) pre-ovulatory follicles (POF) and corpora lutea (CL). Seven days after induction of ovulation, animals were slaughtered and uterine tissues and flushings were collected for quantification of prostanoids. The POF and CL size and the circulating progesterone concentrations at Day 7 were greater (P<0...
March 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28442057/follicle-vascularity-coordinates-corpus-luteum-blood-flow-and-progesterone-production
#15
S G S de Tarso, G D A Gastal, S T Bashir, M O Gastal, G A Apgar, E L Gastal
Colour Doppler ultrasonography was used to compare the ability of preovulatory follicle (POF) blood flow and its dimensions to predict the size, blood flow and progesterone production capability of the subsequent corpus luteum (CL). Cows (n=30) were submitted to a synchronisation protocol. Follicles ≥7mm were measured and follicular wall blood flow evaluated every 12h for approximately 3.5 days until ovulation. After ovulation, cows were scanned daily for 8 days and similar parameters were evaluated for the CL...
March 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28439292/effects-of-bushen-tianjing-recipe-in-a-rat-model-of-tripterygium-glycoside-induced-premature-ovarian-failure
#16
Xiaofeng Xu, Yong Tan, Guorong Jiang, Xuanyi Chen, Rensheng Lai, Lurong Zhang, Guoqiang Liang
BACKGROUND: Bushen Tianjing Recipe (BTR) is a traditional Chinese herbal medicine that has been prescribed for premature ovarian failure (POF) for decades in China. Nevertheless, little is known regarding its underlying molecular mechanism. In the present study, we investigated the effects of BTR in a tripterygium glycoside (TG)-induced-POF rat model. METHODS: Three doses of BTR were administered via intragastric gavage to adult female Sprague-Dawley (SD) rats with TG-induced POF...
2017: Chinese Medicine
https://www.readbyqxmd.com/read/28420216/fast-bragg-grating-inscription-in-pmma-polymer-optical-fibres-impact-of-thermal-pre-treatment-of-preforms
#17
Carlos A F Marques, Andreas Pospori, Gökhan Demirci, Onur Çetinkaya, Barbara Gawdzik, Paulo Antunes, Ole Bang, Pawel Mergo, Paulo André, David J Webb
In this work, fibre Bragg gratings (FBGs) were inscribed in two different undoped poly- (methyl methacrylate) (PMMA) polymer optical fibres (POFs) using different types of UV lasers and their inscription times, temperature and strain sensitivities are investigated. The POF Bragg gratings (POFBGs) were inscribed using two UV lasers: a continuous UV HeCd @325 nm laser and a pulsed UV KrF @248 nm laser. Two PMMA POFs are used in which the primary and secondary preforms (during the two-step drawing process) have a different thermal treatment...
April 18, 2017: Sensors
https://www.readbyqxmd.com/read/28416377/comparison-between-two-estradiol-progesterone-based-protocols-for-timed-artificial-insemination-in-blocks-in-lactating-nelore-cows
#18
L F M Pfeifer, N A Castro, P M A Neves, J P Cestaro, A Schneider
The aim of this study was to compare the use of artificial insemination in time blocks (Artificial Insemination Blocks, AIB) using an 8 and 9 d estradiol-progesterone based protocol. In this experiment, lactating Nelore cows (n=253) were subjected to two estradiol-progesterone based TAI protocols. On the morning of Day 10 (8d group, n=124) or Day 11 (9d group, n=129), cows were examined by ultrasonography to evaluate the diameter of the preovulatory follicle and were inseminated once at one of the following time points, according to the diameter of the pre-ovulatory follicle (POF): Block 0 (POF≥15mm, TAI 0h after conventional TAI), Block 1 (POF 13...
April 4, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28398024/gonadotropin-releasing-hormone-analogues-for-the-prevention-of-chemotherapy-induced-premature-ovarian-failure-in-breast-cancer-patients
#19
Benedetta Conte, Lucia Del Mastro
Since the survival of patients with cancer has significantly improved, chemotherapy-related premature ovarian failure (POF) in young cancer survivors has become a major issue in oncology. POF is associated with several health-related negative consequences, including menopausal symptoms, increased risk of cardiovascular diseases, osteoporosis, sexual disfunction, and infertility1-5. According to the major international guidelines, embryo/oocyte cryopreservation are the standard procedures for fertility preservation in young cancer women6,7...
April 10, 2017: Minerva Ginecologica
https://www.readbyqxmd.com/read/28397721/ultrasonographic-characteristics-of-cortical-sulcus-development-in-the-human-fetus-between-18-and-41-weeks-of-gestation
#20
Xi Chen, Sheng-Li Li, Guo-Yang Luo, Errol R Norwitz, Shu-Yuan Ouyang, Hua-Xuan Wen, Ying Yuan, Xiao-Xian Tian, Jia-Min He
BACKGROUND: Fetal brain development is a complicated process that continues throughout pregnancy. Fetal sulcus development has typical morphological features. Assessment of fetal sulcus development to understand the cortical maturation and development by prenatal ultrasound has become widespread. This study aimed to explore a reliable method to assess cortical sulcus and to describe the normal sonographic features of cortical sulcus development in the human fetus between 18 and 41 weeks of gestation...
April 20, 2017: Chinese Medical Journal
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