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https://www.readbyqxmd.com/read/28105091/effect-of-melatonin-on-the-peripheral-t-lymphocyte-cell-cycle-and-levels-of-reactive-oxygen-species-in-patients-with-premature-ovarian-failure
#1
Yanmin Li, Hongli Liu, Jing Sun, Yipeng Tian, Changzhong Li
The objective of the present study was to observe the curative effect and mechanism of melatonin for suppression of premature ovarian failure (POF). From December 2014 to June 2015, 128 patients were consecutively diagnosed with POF in the Department of Gynaecology and Obstetrics. The patients were randomly divided into the experimental and control groups. The experimental group received melatonin tablets (1-3 mg/day), while the control group received placebo tablets. The levels of six sex hormones, percentage of T lymphocytes in the G1/M phase, and levels of reactive oxygen species (ROS) were determined at four different time-points (1 day before treatment, and at 1, 3 and 6 months after treatment) in both groups...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28059416/macroporous-resin-purification-and-characterization-of-flavonoids-from-platycladus-orientalis-l-franco-and-their-effects-on-macrophage-inflammatory-response
#2
Jiaoyan Ren, Yamei Zheng, Zehua Lin, Xin Han, Wenzhen Liao
The flavonoids (POFs) from the leaves of Platycladus orientalis (L.) Franco were purified using six different macroporous adsorption resins including polar resins NKA-9 and ADS-F8, semi-polar resins ADS-17 and AB-8, and non-polar resins D101 and ADS-5. Among semi-polar resins, AB-8 demonstrated the best adsorption and desorption capacities with an adsorption ratio of 86% and a desorption ratio of 52%. According to the Simultaneous Thermogravimetry-Differential Scanning Calorimetry (STA/TG-DSC) analysis, POFs showed three thermally decomposed temperatures (347...
January 6, 2017: Food & Function
https://www.readbyqxmd.com/read/28047557/su-g-tep2-15-feasibility-study-of-fiber-optic-cerenkov-radiation-sensors-for-in-vivo-measurement-dosimetric-characterization-and-clinical-application-in-proton-beams
#3
J Lah, J Son, G Kim, D Shin
PURPOSE: To evaluate the possibility of a fiber-optic Cerenkov radiation sensor (FCRS) for in vivo dose verification in proton therapy. METHODS: The Cerenkov radiation due to the proton beam was measured using a homemade phantom, consisting of a plastic optical fiber (POF, PGSCD1001-13-E, Toray, Tokyo, Japan) connected to each channel of a multianode photomultiplier tube (MAPMT:H7546, Hamamatsu Photonics, Shizuoka, Japan). Data were acquired using a multi-anode photomultiplier tube with the NI-DAQ system (National Instruments Texas, USA)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28040259/postoperative-fever-after-hemiarthroplasty-in-elderly-patients-over-70-years-of-age-with-displaced-femoral-neck-fracture-necessity-of-routine-workup
#4
Je-Hyun Yoo, Ki-Tae Kim, Tae-Young Kim, Ji-Hyo Hwang, Jun-Dong Chang
OBJECTIVES: Displaced femoral neck fracture in elderly patients has been treated with hemiarthroplasty as the treatment of choice. Fever following HA is common in these elderly patients. The aim of this study was to determine which post-HA fever workup could be beneficial in this group of patients. METHODS: A total of 272 consecutive patients aged ≥70 years undergoing HA for displaced femoral neck fracture were retrospectively investigated. Postoperative fever (POF) was defined as any recorded body temperature ≥38°C in the early postoperative period...
December 23, 2016: Injury
https://www.readbyqxmd.com/read/28018715/water-equivalent-fiber-radiation-dosimeter-with-two-scintillating-materials
#5
Zhuang Qin, Yaosheng Hu, Yu Ma, Wei Lin, Xianping Luo, Wenhui Zhao, Weimin Sun, Daxin Zhang, Ziyin Chen, Boran Wang, Elfed Lewis
An inorganic scintillating material plastic optical fiber (POF) dosimeter for measuring ionizing radiation during radiotherapy applications is reported. It is necessary that an ideal dosimeter exhibits many desirable qualities, including water equivalence, energy independence, reproducibility, dose linearity. There has been much recent research concerning inorganic dosimeters. However, little reference has been made to date of the depth-dose characteristics of dosimeter materials. In the case of inorganic scintillating materials, they are predominantly non water-equivalent, with their effective atomic weight (Zeff) being typically much greater than that of water...
December 1, 2016: Biomedical Optics Express
https://www.readbyqxmd.com/read/27989800/next-generation-sequencing-identifies-abnormal-y-chromosome-and-candidate-causal-variants-in-premature-ovarian-failure-patients
#6
Yujung Lee, Changshin Kim, YoungJoon Park, Jung-A Pyun, KyuBum Kwack
Premature ovarian failure (POF) is characterized by heterogeneous genetic causes such as chromosomal abnormalities and variants in causal genes. Recently, development of techniques made next generation sequencing (NGS) possible to detect genome wide variants including chromosomal abnormalities. Among 37 Korean POF patients, XY karyotype with distal part deletions of Y chromosome, Yp11.32-31 and Yp12 end part, was observed in two patients through NGS. Six deleterious variants in POF genes were also detected which might explain the pathogenesis of POF with abnormalities in the sex chromosomes...
October 29, 2016: Genomics
https://www.readbyqxmd.com/read/27983608/refractive-index-sensing-with-d-shaped-plastic-optical-fibers-for-chemical-and-biochemical-applications
#7
Filipa Sequeira, Daniel Duarte, Lúcia Bilro, Alisa Rudnitskaya, Maria Pesavento, Luigi Zeni, Nunzio Cennamo
We report the optimization of the length of a D-shaped plastic optical fiber (POF) sensor for refractive index (RI) sensing from a numerical and experimental point of view. The sensing principle is based on total internal reflection (TIR). POFs with 1 mm in diameter were embedded in grooves, realized in planar supports with different lengths, and polished to remove the cladding and part of the core. All D-shaped POF sensors were tested using aqueous medium with different refractive indices (from 1.332 to 1...
December 13, 2016: Sensors
https://www.readbyqxmd.com/read/27981878/xenogeneic-decellularized-scaffold-a-novel-platform-for-ovary-regeneration
#8
Wen-Yue Liu, Shi-Gang Lin, Ru-Yi Zhuo, Yuan-Yuan Xie, Wei Pan, Xian-Feng Lin, Fei-Xia Shen
Women younger than 40 years may face early menopause because of premature ovarian failure (POF). The cause of POF can be idiopathic or iatrogenic, especially the cancer-induced oophorectomy and chemo- or radiation therapy. The current treatments, including hormone replacement therapy (HRT) and cryopreservation techniques, have increased risk of ovarian cancer and may reintroduce malignant cells after autografting. Decellularization technique has been regarded as a novel regenerative medicine strategy for organ replacement, wherein the living cells of an organ are removed, leaving the extracellular matrix (ECM) for cellular seeding...
January 10, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/27965399/selenium-binding-protein-1-autoantibodies-in-ovarian-disorders-and-ovarian-cancer
#9
Yi Yu-Rice, Seby L Edassery, Nicole Urban, Ingegerd Hellstrom, Karl Eric Hellstrom, Youping Deng, Yan Li, Judith Luborsky
Infertility is a risk factor for ovarian cancer (OvCa). The goal was to determine if antibodies to Selenium Binding Protein 1 (SBP1), an autoantibody we identified in patients with premature ovarian failure (POF), occurs in both infertility and OvCa patients, and thus could be associated with preneoplasia. Anti-SBP1 was measured by immunoassay against recombinant SBP1, in sera from OvCa (n=41), infertility (n=92) and control (n=87) patients. Infertility causes were POF, unexplained, irregular ovulation or endometriosis...
December 13, 2016: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/27930667/protein-phosphatase-6-protects-prophase-i-arrested-oocytes-by-safeguarding-genomic-integrity
#10
Meng-Wen Hu, Tie-Gang Meng, Zong-Zhe Jiang, Ming-Zhe Dong, Heide Schatten, Xingzhi Xu, Zhen-Bo Wang, Qing-Yuan Sun
Mammalian oocytes are arrested at prophase of the first meiotic division in the primordial follicle pool for months, even years, after birth depending on species, and only a limited number of oocytes resume meiosis, complete maturation, and ovulate with each reproductive cycle. We recently reported that protein phosphatase 6 (PP6), a member of the PP2A-like subfamily, which accounts for cellular serine/threonine phosphatase activity, functions in completing the second meiosis. Here, we generated mutant mice with a specific deletion of Ppp6c in oocytes from the primordial follicle stage by crossing Ppp6cF/F mice with Gdf9-Cre mice and found that Ppp6cF/F; GCre+ mice are infertile...
December 2016: PLoS Genetics
https://www.readbyqxmd.com/read/27891401/premature-ovarian-failure-an-association-with-autoimmune-diseases
#11
Ayesha, Vandana Jha, Deepti Goswami
INTRODUCTION: Premature Ovarian Failure (POF) is the cessation of ovarian function before the age of 40 years. POF is reported to be associated with autoimmune diseases in 20-30% of cases. AIM: Patients presenting with idiopathic POF were screened for the presence of autoimmune disorders. MATERIALS AND METHODS: Twenty patients with idiopathic POF were included in the study. Baseline investigation in all subjects included fasting serum FSH, LH, E2, progesterone, free T3, free T4, Thyroid-Stimulating Hormone (TSH) and Anti-Thyroperoxidase (anti-TPO) antibodies, testosterone and Dehydroepiandrosterone (DHEAS) levels...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27876427/fmr1-premutation-not-only-important-in-premature-ovarian-failure-but-also-in-diminished-ovarian-reserve
#12
Ali Eslami, Kamelia Farahmand, Mehdi Totonchi, Tahereh Madani, Ummulbanin Asadpour, Shabnam Zari Moradi, Hamid Gourabi, Anahita Mohseni-Meybodi
It is recognized that FMR1 premutation expansions are associated with premature ovarian failure (POF), but their role in diminished ovarian reserve (DOR) is not clearly established. Moreover, the impact of smaller repeats at the boundary of premutation and normal is less clear. Therefore, we have compared the frequency of these intermediate (45-54 repeats) and premutation (>55) sized FMR1 CGG repeats among a patients group including 188 DOR and 173 POF women and 200 controls. FSH and LH concentrations were also compared between intermediate and premutation ranges in patients...
November 23, 2016: Human Fertility: Journal of the British Fertility Society
https://www.readbyqxmd.com/read/27802832/reproductive-issues-in-patients-undergoing-hematopoietic-stem-cell-transplantation-an-update
#13
REVIEW
Maurizio Guida, Maria Antonietta Castaldi, Rosa Rosamilio, Valentina Giudice, Francesco Orio, Carmine Selleri
In 1963 George Mathé announced to the world that he had cured a patient of leukaemia by means of a bone-marrow transplant. Since than much progress has been made and nowadays Hematopoietic Stem Cell Transplantation (HSCT) is considered the most effective treatment of numerous severe haematological diseases. Gynaecological complications in HSCT women represent a serious concern for these patients, but often underestimated by clinicians in the view of Overall Survival. The main gynaecological complications of HSCT are represented by: premature ovarian failure (POF), thrombocytopenia-associated menorrhagia, genital symptoms or sexual problems in course of chronic GVHD (cGVHD), osteoporosis, secondary solid tumours due to immunosuppressive drugs to treat cGVHD and severity of cGVHD, and fertility and pregnancy issues...
November 1, 2016: Journal of Ovarian Research
https://www.readbyqxmd.com/read/27795650/peripheral-ossifying-fibroma-a-rare-case-affecting-maxillary-region
#14
Sahana Ashok, Anish Ashok Gupta, K P Ashok, Shubhangi Ashok Mhaske
Focal gingival enlargements are a diverse group of lesions with almost similar clinical presentation but varied etiology and histopathology. The actual cause of peripheral ossifying fibroma (POF) has been debated over many years. POFs are usually seen in childhood and younger ages. There is a slight female predilection. It is usually localized, rarely generalized. Usually, the treatment option is only surgical excision with minimal chances of recurrence. Here, we report a case of POF of the right maxillary posterior region with a review of literature...
September 2016: Indian Journal of Dentistry
https://www.readbyqxmd.com/read/27757285/the-clinical-functional-and-biomechanical-presentation-of-patients-with-symptomatic-hip-abductor-tendon-tears
#15
Jay R Ebert, Theertha Retheesh, Rinky Mutreja, Gregory C Janes
BACKGROUND: Hip abductor tendon (HAT) tearing is commonly implicated in greater trochanteric pain syndrome (GTPS), though limited information exists on the disability associated with this condition and specific presentation of these patients. PURPOSE: To describe the clinical, functional and biomechanical presentation of patients with symptomatic HAT tears. Secondary purposes were to investigate the association between these clinical and functional measures, and to compare the pain and disability reported by HAT tear patients to those with end-stage hip osteoarthritis (OA)...
October 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27733305/quantitative-analysis-of-the-trendelenburg-test-and-invention-of-a-modified-method
#16
Kenji Fujita, Tamon Kabata, Yoshitomo Kajino, Shintaro Iwai, Kazunari Kuroda, Kazuhiro Hasegawa, Katsuo Fujiwara, Hiroyuki Tsuchiya
BACKGROUND: While the Trendelenburg test has been used for 120 years to detect hip abductor muscle weakness, the methodology has not been standardised. PURPOSES: This study undertook to quantitatively analyze the relation between abductor muscle activity and pelvic tilt angle in the Trendelenburg one-leg stance, examine the pitfalls associated with performing the T-test, and develop a modified method that will produce reliable results. METHODS: A convenience sample of 15 healthy males was asked to assume a one-leg stance in ten different postures, five with mild flexion on the unsupported side, and five with severe flexion...
October 9, 2016: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/27729272/cyclophosphamide-promotes-the-proliferation-inhibition-of-mouse-ovarian-granulosa-cells-and-premature-ovarian-failure-by-activating-the-lncrna-meg3-p53-p66shc-pathway
#17
Ying Xiong, Te Liu, Suwei Wang, Huiying Chi, Chuan Chen, Jin Zheng
The dysfunction of ovarian granulosa cells (OGCs) directly affects the premature ovarian failure (POF). In vivo experiments showed that cyclophosphamide significantly induced mouse ovarian atrophy and proliferation inhibition of OGCs. The expressions of p53, p66Shc and p16 were significantly higher in OGCs of the cyclophosphamide treatment group. MTT assay showed that cyclophosphamide effectively inhibited the proliferation of OGCs in vitro. SA-β-Gal staining showed that the OGCs in the cyclophosphamide treatment group had many senescent cells...
January 5, 2017: Gene
https://www.readbyqxmd.com/read/27688100/patterns-of-failure-after-reirradiation-with-intensity-modulated-radiation-therapy-and-the-competing-risk-of-out-of-field-recurrences
#18
Danielle N Margalit, Bhupendra Rawal, Paul J Catalano, Robert I Haddad, Laura A Goguen, Donald J Annino, Sewanti A Limaye, Jochen H Lorch, Annie W Lavigne, Jonathan D Schoenfeld, David J Sher, Roy B Tishler
PURPOSE: To describe patterns of failure (POF) after reirradiation (reRT) with intensity modulated radiation therapy (IMRT) for recurrent/second primary squamous cell carcinoma of the head and neck. METHODS: From 08/2004-02/2013, 75 consecutive patients received reRT with IMRT. Gross tumor was generally treated with a 5mm planning target volume (PTV) margin. For postoperative cases, a 5mm PTV was added to the clinical target volume which included the postoperative bed...
October 2016: Oral Oncology
https://www.readbyqxmd.com/read/27686934/early-prediction-of-persistent-organ-failure-by-serum-angiopoietin-2-in-patients-with-acute-pancreatitis
#19
Yu-Ping Zhang, Chang Liu, Lei Ye, Na Yu, Yuan-Ning Ye, Wen-Rong Sun, Lin Wu, Fang-Yu Wang
BACKGROUND: Biomarkers for the early prediction of the severity of acute pancreatitis (AP) are urgently needed for clinical management of the disease. Angiopoietin-2 (Ang-2), one of the autocrine peptides that reduce endothelial permeability, has been found to be associated with various diseases, including inflammatory disorders. AIMS: This study aimed to determine whether serum Ang-2 could serve as a noninvasive biomarker for the early prediction of persistent organ failure (POF) in acute pancreatitis...
September 29, 2016: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/27681656/reduced-fetal-brain-fissures-depth-in-fetuses-with-congenital-heart-diseases
#20
Qinghai Peng, Qichang Zhou, Ming Zang, Jiawei Zhou, Ran Xu, Tao Wang, Shi Zeng
OBJECTIVE: To screen and detect cortex gyration in fetuses with congenital heart disease (CHD) using Ultrasonography (US) during routine obstetric scans. METHODS: The depth of the Sylvian fissure (SF), parieto-occipital fissure (POF), and calcarine (CF) fissure were prospectively serially measured and compared in 45 fetuses with CHD and 45 normal fetuses. Cardiac hemodynamic parameters, including aortic valve diameter (AV), pulmonary valve diameter (PV), velocity time integral of the aortic valve (VTIav), and velocity time integral of the pulmonary valve (VTIpv), were recorded...
November 2016: Prenatal Diagnosis
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