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https://www.readbyqxmd.com/read/28721130/premature-ovarian-failure
#1
REVIEW
Katarzyna Jankowska
Premature ovarian failure (POF) is the term usually used to describe women aged younger than 40 years, who present with amenorrhoea, hypergonadotropic hypogonadism, and infertility. POF is a devastating diagnosis for reproductive-aged women. The clinical presentation is diverse, and several different disorders can lead to premature ovarian failure. POF has serious health consequences, including psychological distress, infertility, osteoporosis, autoimmune disorders, ischaemic heart disease, and increased risk of mortality...
June 2017: Przeglad Menopauzalny, Menopause Review
https://www.readbyqxmd.com/read/28708503/effect-of-dietary-supplementation-of-omega-3-polyunsaturated-fatty-acid-pufa-rich-fish-oil-on-reproductive-performance-of-the-goat-capra-hircus
#2
Ajit Singh Mahla, Ravjibhai K Chaudhari, Atul Kumar Verma, Amit Kumar Singh, Sanjay Kumar Singh, Gyanendra Singh, Mihir Sarkar, Narayan Dutta, Harendra Kumar, Narayanan Krishnaswamy
Dietary supplementation of n-3 PUFA decreases the luteolytic PGF2α and improves the pregnancy rate in the dairy cow. However, its effect in the goat is not known. Accordingly, we studied the effect of supplementation of n-3 PUFA rich Fish oil (FO) on different reproductive events in the goat. Cycling goats (n = 30) were divided into two equal groups and fed an isocaloric and isonitrogenous diet supplemented with either FO (TRT; n = 15) or palm oil (PO) (CON; n = 15) @ 0.6 mL/kg body weight for 72 days during the breeding season...
May 26, 2017: Theriogenology
https://www.readbyqxmd.com/read/28691758/cooperative-activation-promoted-on-flexible-porous-organic-frameworks
#3
Mingmei Zhong, He Li, Jian Chen, Lin Tao, Can Li, Qihua Yang
Developing solid catalysts with multi active sites working in a cooperation way, the mimicking enzyme's function is desirable for efficient chemical transformations. However, most solid catalysts are rigid and impede the cooperation between their spatially isolated active sites. Herein, two flexible porous organic frameworks (POFs) with integrated Co(salen) as active sites have been successfully synthesized for mimicking the cooperative modes of enzymes. The POFs exhibit second-order rate dependence on Co(salen) concentration in the network and afford much higher TOF (3300 versus 2670 h-1) than homogeneous counterpart in the hydration of propylene epoxide...
July 10, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28678972/the-role-of-osterix-protein-in-the-pathogenesis-of-peripheral-ossifying-fibroma
#4
Vivian Narana Ribeiro El Achkar, Raphaella da Silveira Medeiros, Fernanda Gargano Longue, Ana Lia Anbinder, Estela Kaminagakura
Peripheral ossifying fibroma (POF) is a reactive lesion of oral tissues, associated with local factors such as trauma or presence of dental biofilm. POF treatment consists of curettage of the lesion combined with root scaling of adjacent teeth and/or removal of other sources of irritants. This study aimed to analyze the clinical and pathological features of POF and to investigate the immunoexpression of Osterix and STRO-1 proteins. Data such as age, gender, and size were obtained from 30 cases of POF. Microscopic features were assessed by conventional light microscopy using hematoxylin-eosin staining and immunohistochemical markers, and by polarized light microscopy using Picrosirius red staining...
July 3, 2017: Brazilian Oral Research
https://www.readbyqxmd.com/read/28677787/cloning-of-the-promoter-region-of-a-human-gene-foxl2-and-its-regulation-by-stat3
#5
Yangyang Han, Tianxiao Wang, Shudong Sun, Zhaohui Zhai, Shengjian Tang
Forkhead box L2 (FOXL2) is a transcription factor, which is involved in blepharophimosis, ptosis, and epicanthus in versus syndrome (BPES), premature ovarian failure (POF), as well as almost all stages of ovarian development and function. FOXL2 has various target genes, which are implicated in numerous processes, including sex determination, cell cycle regulation and apoptosis and stress response regulation in mammals. However, studies regarding the upstream regulation of FOXL2 are limited. In the present study, the promoter of FOXL2 was successfully cloned and registered in Gen Bank, and a dual luciferase reporter (DLR) analysis demonstrated that the luciferase activity was significantly induced by the promoter of FOXL2...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28672796/slab-waveguide-and-optical-fibers-for-novel-plasmonic-sensor-configurations
#6
Nunzio Cennamo, Francesco Mattiello, Luigi Zeni
The use of plasmonic sensor devices often requires replaceable parts and disposable chips for easy, fast and on-site detection analysis. In light of these requests, we propose a novel low-cost surface plasmon resonance sensor platform for possible selective detection of analytes in aqueous solutions. It is based on a Polymethyl methacrylate (PMMA) slab waveguide with a thin gold film on the top surface inserted in a special holder, designed to produce the plasmonic resonance at the gold-dielectric interface...
June 24, 2017: Sensors
https://www.readbyqxmd.com/read/28669943/-a-prenatal-ultrasound-study-of-cerebral-sulci-and-gyrus-development-in-fetuses-with-tetralogy-of-fallot
#7
Jia-Min He, Sheng-Li Li, Xi Chen, Hua-Xuan Wen, Ying Yuan, Dan-Dan Luo
OBJECTIVE: To evaluate the development of the cerebral sulci and gyrus and cerebral blood flow in fetuses with tetralogy of Fallot (ToF) in the second and third trimesters using ultrasound imaging. METHODS: Forty fetuses (23-33(+6) weeks) with ToF diagnosed using ultrasound imaging between December, 2015 and September, 2016 were analyzed in this study. The development of the cerebral sulci and gyrus was evaluated by measuring the parietal-occipital fissure (POF) depth, POF angle, sylvian fissure (SF) depth, SF width, uncovered insular width, calcarine fissure (CF) depth, hemisphere depth on the views of POF, SF and CF, uncovered insular ratio, biparietal diameter (BPD), and head circumference (HC)...
June 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28655321/stratified-analysis-and-clinical-significance-of-elevated-serum-triglyceride-levels-in-early-acute-pancreatitis-a-retrospective-study
#8
Jianhua Wan, Wenhua He, Yin Zhu, Yong Zhu, Hao Zeng, Pi Liu, Liang Xia, Nonghua Lu
BACKGROUND: Hypertriglyceridemia is one of the three most common causes of AP, which is associated with the AP prognosis that has not been clearly defined. METHODS: In this retrospective study, 1539 AP patients, who had serum triglyceride (TG) levels measured within the first 72 h, were assessed. The study groups consisted of patients with normal, mild, moderate, and severe/very severe HTG levels based on the Endocrine Society Clinical Practice Guidelines. We collected baseline demographic information, laboratory values, complications, and clinical outcome data in different HTG severity groups to analyze the clinical significance of elevated TG levels in AP...
June 27, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28630707/evidence-of-endometrial-amino-acid-metabolism-and-transport-modulation-by-peri-ovulatory-endocrine-profiles-driving-uterine-receptivity
#9
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
#10
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...
September 15, 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
#11
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...
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-porous-organic-frameworks-with-built-in-tempo-as-a-cathode-for-lithium-sulfur-batteries
#12
Baolong Zhou, Xiang Hu, Guang Zeng, Shiwu Li, Zhenhai Wen, Long Chen
Two redox-active porous organic frameworks (POFs) with a built-in radical moiety (TEMPO) and hierarchical porous structures were synthesized through a facile bottom-up strategy and studied as cathode materials for lithium-sulfur (Li-S) batteries. The sulfur loading in these two POFs reached 61 %, benefitting from their large pore volumes. Owing to the highly dense docking sites of TEMPO, sulfur could be covalently immobilized within the porous networks and efficiently inhibit the shuttle effect, thereby 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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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