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Reproductive Imaging

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https://www.readbyqxmd.com/read/29331830/fetal-development-of-the-poeppig-s-woolly-monkey-lagothrix-poeppigii
#1
Rafael Dos Santos de Andrade, Frederico Ozanan Barros Monteiro, Hani Rocha El Bizri, Wilter Ricardo Russiano Vicente, Diva Anelie de Araujo Guimarães, Pedro Mayor
The intrauterine development is an evolutionary strategy that prepares the neonate for extra-uterine life, thus providing important information on the life history of species. In this study, we described the external and internal morphology of 25 fetuses of Poeppig's woolly monkeys (Lagothrix poeppigii) by taking advantage of a 10-year participatory collection of biological samples originated from animals hunted for subsistence purposes in the Peruvian Amazon. Logistic regressions estimated the probability of occurrence of each external morphological characteristic in relation to the crown-rump length (CRL)...
December 8, 2017: Theriogenology
https://www.readbyqxmd.com/read/29331456/vocalization-as-an-indicator-of-estrus-climax-in-holstein-heifers-during-natural-estrus-and-superovulation
#2
Volker Röttgen, Frank Becker, Armin Tuchscherer, Christine Wrenzycki, Sandra Düpjan, Peter C Schön, Birger Puppe
The reliable detection of estrus is an important scientific and practical challenge in dairy cattle farming. Female vocalization may indicate reproductive status, and preliminary evidence suggests that this information can be used to detect estrus in dairy cattle. The aim of this study was to associate the changes in the vocalization rate of dairy heifers with behavioral estrus indicators as well as test the influence of the type of estrus (natural estrus vs. superovulation-induced estrus). We analyzed 6 predefined estrus-related behavior patterns (standing to be mounted, head-side mounting, active mounting, chin resting, being mounted while not standing, and active sniffing in the anogenital region) and vocalization rates in the peri-estrus period (day of estrus ± 1 d) of 12 German Holstein heifers using audio-visual recordings...
January 10, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29313317/laparoscopic-excision-of-an-unusual-presentation-of-a-nabothian-cyst-case-report-and-review-of-the-literature
#3
Joseph Nassif, Hasan Nahoul, Ali Mourad, Ryan Yammine, Sally Khoury, Ali Khalil
Nabothian cysts are mucinous retention cysts formed through the accumulation of cervical mucus inside blocked cervical crypts leading to non-neoplastic mucinous cystic lesion in relation to the uterine cervix. The formation of Nabothian cysts is a common gynecological benign condition in women of reproductive age. While the presence of small-sized Nabothian cysts is usually clinically asymptomatic and requires no treatment or intervention, the diagnosis of larger Nabothian cysts can be mistaken with malignant tumors, including mucin producing carcinomas such as Adenoma malignum...
December 22, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/29311694/intravital-mucosal-imaging-of-cd8-resident-memory-t-cells-shows-tissue-autonomous-recall-responses-that-amplify-secondary-memory
#4
Lalit K Beura, Jason S Mitchell, Emily A Thompson, Jason M Schenkel, Javed Mohammed, Sathi Wijeyesinghe, Raissa Fonseca, Brandon J Burbach, Heather D Hickman, Vaiva Vezys, Brian T Fife, David Masopust
CD8+ T cell immunosurveillance dynamics influence the outcome of intracellular infections and cancer. Here we used two-photon intravital microscopy to visualize the responses of CD8+ resident memory T cells (TRM cells) within the reproductive tracts of live female mice. We found that mucosal TRM cells were highly motile, but paused and underwent in situ division after local antigen challenge. TRM cell reactivation triggered the recruitment of recirculating memory T cells that underwent antigen-independent TRM cell differentiation in situ...
January 8, 2018: Nature Immunology
https://www.readbyqxmd.com/read/29306150/ultrasonographic-assessment-of-the-male-koala-phascolarctos-cinereus-reproductive-tract
#5
Rebecca Larkin, Chiara Palmieri, Motoharu Oishi, Lyndal Hulse, Stephen D Johnston
Studies documenting the application of ultrasonography to depict normal and pathological changes in koalas (Phascolarctos cinereus), especially in the male, are scarce. Sixty-two wild koalas were used in this study to define ultrasonographic protocols and features for the assessment of the male koala reproductive tract. Testis, epididymis and spermatic cord were examined using a hockey stick transducer. The normal koala testis showed a homogeneous echogenicity and an obvious hyper-echoic band corresponding to the tunica albuginea...
December 27, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/29304256/dynamics-ultrastructure-and-gene-expression-of-human-in-vitro-organized-testis-cells-from-testicular-sperm-extraction-biopsies
#6
Kathrein von Kopylow, Wolfgang Schulze, Andrea Salzbrunn, Matthias Schaks, Elke Schäfer, Beate Roth, Stefan Schlatt, Andrej-Nikolai Spiess
STUDY QUESTION: Is it possible to induce in-vitro reorganization of primary human testis cells from testicular sperm extraction (TESE) biopsies, maintain their long-term cultivation in a 2D system and identify cellular compositions? SUMMARY ANSWER: In-vitro reorganization of primary human testis cells from TESE biopsies and their long-term cultivation on uncoated cell culture dishes is feasible and the cellular compositions can be uncovered through gene expression and microscopic analyses...
January 3, 2018: Molecular Human Reproduction
https://www.readbyqxmd.com/read/29304248/viable-acrosome-intact-human-spermatozoa-in-the-ejaculate-as-a-marker-of-semen-quality-and-fertility-status
#7
Dorte Louise Egeberg Palme, Anders Rehfeld, Anne Kirstine Bang, Kristiana Alexandrova Nikolova, Søren Kjærulff, Morten Rønn Petersen, Janni Vikkelsø Jeppesen, Martin Glensbjerg, Anders Juul, Niels E Skakkebæk, Søren Ziebe, Niels Jørgensen, Kristian Almstrup
STUDY QUESTION: Is it possible, in an unbiased and clinical relevant way, to determine the number of viable acrosome-intact human spermatozoa in ejaculates and to use this as a measure of fertility chances? SUMMARY ANSWER: Image cytometry enables easy and unbiased quantification of viable acrosome-intact spermatozoa and it correlates with semen quality and fertility status. WHAT IS KNOWN ALREADY: The presence of the acrosome and its ability to respond to physiological inducers (e...
January 2, 2018: Human Reproduction
https://www.readbyqxmd.com/read/29286461/ultrasonography-in-experimental-reproductive-investigations-on-rats
#8
Tianjuang Wang, Lidia Oltra-Rodríguez, Nuria García-Carrillo, Anibal Nieto, Yunxia Cao, María L Sánchez-Ferrer
With the development of assisted reproductive technology and the ethical limitations of research on humans, rat animal models have been widely used in reproductive medicine. In the past, the study of reproductive system development in rodents has been based on one-time histological examination of excised tissues. Recently, with the development of high-resolution transabdominal ultrasound, high-quality sonography can now be performed to evaluate the reproductive organs of rats, allowing a new method for studying the reproductive system...
December 2, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29286424/collection-of-post-mating-semen-from-the-female-reproductive-tract-and-measurement-of-semen-liquefaction-in-mice
#9
Shuai Li, Wipawee Winuthayanon
In mice, ejaculated semen is deposited in the uterus. After ejaculation, the semen changes consistency from gel-like to watery, a process called liquefaction. In this study, we show how to collect the post-ejaculated semen from the female reproductive tract in a mouse model. First, adult female mice in the estrus stage were housed in a male's cage overnight. The next morning, copulation was confirmed by the presence of copulatory plug at the vaginal opening. Female mice with copulatory plugs were euthanized, and each reproductive tract was collected as a whole (vagina, uterus, oviducts, ovaries), ensuring a closed system to contain the semen...
November 18, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29286393/three-dimensional-reconstruction-of-the-vascular-architecture-of-the-passive-clarity-cleared-mouse-ovary
#10
Wei Hu, Amin Tamadon, Aaron J W Hsueh, Yi Feng
The ovary is the main organ of the female reproductive system and is essential for the production of female gametes and for controlling the endocrine system, but the complex structural relationships and three-dimensional (3D) vasculature architectures of the ovary are not well described. In order to visualize the 3D connections and architecture of blood vessels in the intact ovary, the first important step is to make the ovary optically clear. In order to avoid tissue shrinkage, we used the hydrogel fixation-based passive CLARITY (Clear Lipid-exchanged Acrylamide-hybridized Rigid Imaging/ Immunostaining/In situ-hybridization-compatible Tissue Hydrogel) protocol method to clear an intact ovary...
December 10, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29285999/the-clinical-characteristics-and-surgical-approach-of-abdominal-wall-endometriosis-a-case-series-of-14-women
#11
Faik Tatli, Orhan Gozeneli, Hacer Uyanikoglu, Ali Uzunkoy, Huseyin Cahit Yalcın, Abdullah Ozgonul, Osman Bardakci, Adnan Incebiyik, Muhammet Emin Guldur
Abdominal wall endometriosis (AWE) is a rare form of endometriosis that usually develops in the scar after cesarean section (CS). Recently, the occurrence of AWE has been increasing together with the increase of CS incidence. AWE can be clinically misdiagnosed as hernia, lipoma, or hematoma. Here we retrospectively analyzed the clinical aspects of AWE and surgical approach in 14 patients from a tertiary hospital, who were treated by surgery, between 2012 and 2017. The mean age was 32.71 ± 8.61 years (range: 19-45)...
December 29, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29285022/recommendations-for-the-surgical-treatment-of-endometriosis-part-1-ovarian-endometrioma
#12
Ertan Saridogan, Christian M Becker, Anis Feki, Grigoris F Grimbizis, Lone Hummelshoj, Joerg Keckstein, Michelle Nisolle, Vasilios Tanos, Uwe A Ulrich, Nathalie Vermeulen, Rudy Leon De Wilde
Study question: What does this document on the surgical treatment of endometriosis jointly prepared by the European Society for Gynaecological Endoscopy (ESGE), ESHRE, and the World Endometriosis Society (WES) provide? Summary answer: This document provides recommendations covering technical aspects of different methods of surgery for endometriomas in women of reproductive age. What is already known: Endometriomas (ovarian endometriotic cysts) are a commonly diagnosed form of endometriosis, owing to the relative ease and accuracy of ultrasound diagnosis...
2017: Gynecological Surgery
https://www.readbyqxmd.com/read/29274145/review-of-optical-coherence-tomography-in-oncology
#13
Jianfeng Wang, Yang Xu, Stephen A Boppart
The application of optical coherence tomography (OCT) in the field of oncology has been prospering over the past decade. OCT imaging has been used to image a broad spectrum of malignancies, including those arising in the breast, brain, bladder, the gastrointestinal, respiratory, and reproductive tracts, the skin, and oral cavity, among others. OCT imaging has initially been applied for guiding biopsies, for intraoperatively evaluating tumor margins and lymph nodes, and for the early detection of small lesions that would often not be visible on gross examination, tasks that align well with the clinical emphasis on early detection and intervention...
December 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/29243295/extended-phase-graph-formalism-for-systems-with-magnetization-transfer-and-exchange
#14
Shaihan J Malik, Rui Pedro A G Teixeira, Joseph V Hajnal
PURPOSE: An extended phase graph framework (EPG-X) for modeling systems with exchange or magnetization transfer (MT) is proposed. THEORY: EPG-X models coupled two-compartment systems by describing each compartment with separate phase graphs that exchange during evolution periods. There are two variants: EPG-X(BM) for systems governed by the Bloch-McConnell equations, and EPG-X(MT) for the pulsed MT formalism. For the MT case, the "bound" protons have no transverse components, so their phase graph consists of only longitudinal states...
December 15, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29240891/primary-ovarian-insufficiency-and-azospermia-in-carriers-of-a-homozygous-psmc3ip-stop-gain-mutation
#15
Abdulmoein Eid Al-Agha, Ihab Abdulhamed Ahmed, Esther Nuebel, Mika Moriwaki, Barry Moore, Katherine A Peacock, Tim Mosbruger, Deborah W Neklason, Lynn B Jorde, Mark Yandell, Corrine K Welt
Context: The etiology of primary ovarian insufficiency (POI) remains unknown in a majority of cases. Objective: We sought to identify genes causing POI. Design: The study was a familial genetic study. Setting: The study was performed in two academic institutions. Patients: We identified a consanguineous Yemeni family in which 4 daughters had POI. A brother had azoospermia. Intervention: DNA was subjected to whole genome sequencing...
December 12, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29237819/condensins-promote-chromosome-individualization-and-segregation-during-mitosis-meiosis-and-amitosis-in-tetrahymena-thermophila
#16
Rachel Howard-Till, Josef Loidl
Condensin is a protein complex with diverse functions in chromatin packaging and chromosome condensation and segregation. We studied condensin in the evolutionarily distant protist model Tetrahymena, which features non-canonical nuclear organization and divisions. In Tetrahymena, the germline and soma are partitioned into two different nuclei within a single cell. Consistent with their functional specializations in sexual reproduction and gene expression, condensins of the germline nucleus and the polyploid somatic nucleus are composed of different subunits...
December 13, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/29233171/deep-infiltrating-ureteral-endometriosis-with-catamenial-hydroureteronephrosis-a-case-report
#17
Hyun Jung Lee, Yoon Soon Lee
BACKGROUND: This aim of this case report is to raise awareness of ureteral endometriosis in women of reproductive age with hydronephrosis in the absence of urolithiasis to enable early diagnosis and prevent loss of renal function. CASE PRESENTATION: A 44-year-old Asian woman presented with a 4-year history of cyclic right flank pain and right hydronephrosis during menstruation. Despite several evaluations by physicians, including gynecologists, the cause of her symptoms was not diagnosed...
December 13, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29230860/cardiac-gating-using-scattering-of-an-8-channel-parallel-transmit-coil-at-7t
#18
Sven H F Jaeschke, Matthew D Robson, Aaron T Hess
PURPOSE: To establish a cardiac signal from scattering matrix or scattering coefficient measurements made on a 7T 8-channel parallel transmit (pTx) system, and to evaluate its use for cardiac gating. METHODS: Measurements of the scattering matrix and scattering coefficients were acquired using a monitoring pulse sequence and during a standard cine acquisition, respectively. Postprocessing used an independent component analysis and gating feature identification. The effect of the phase of the excitation radiofrequency (RF) field ( B1+ shim) on the cardiac signal was simulated for multiple B1+ shim configurations, and cine images were reconstructed from both the scattering coefficients and electrocardiogram (ECG)...
December 11, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29230360/skin-temperature-and-reproductive-condition-in-wild-female-chimpanzees
#19
Guillaume Dezecache, Claudia Wilke, Nathalie Richi, Christof Neumann, Klaus Zuberbühler
Infrared thermal imaging has emerged as a valuable tool in veterinary medicine, in particular for evaluating reproductive processes. Here, we explored differences in skin temperature of twenty female chimpanzees in Budongo Forest, Uganda, four of which were pregnant during data collection. Based on previous literature in other mammals, we predicted increased skin temperature of maximally swollen reproductive organs of non-pregnant females when approaching peak fertility. For pregnant females, we made the same prediction because it has been argued that female chimpanzees have evolved mechanisms to conceal pregnancy, including swellings of the reproductive organs, conspicuous copulation calling, and solicitation of male mating behaviour, to decrease the infanticidal tendencies of resident males by confusing paternity...
2017: PeerJ
https://www.readbyqxmd.com/read/29225363/forensic-identification-of-decomposed-human-body-through-comparison-between-ante-mortem-and-post-mortem-ct-images-of-frontal-sinuses-case-report
#20
Rhonan Ferreira Silva, Fernando Fortes Picoli, Tessa de Lucena Botelho, Roberta Gomes Resende, Ademir Franco
Objective: The aim of this paper is to report on a case of positive human identification of a decomposed body after the comparison of ante-mortem (AM) and port-mortem (PM) computed tomography images of frontal sinus. Case report: An unknown, highly decomposed human body, aged between 30 and 40 years, was found in a forest region in Brazil. The dental autopsy revealed several teeth missing AM and the presence of removable partial prostheses. The search for AM data resulted in a sequence of 20 axial images of the paranasal sinuses obtained by Multislice Computed Tomography (MSCT)...
September 2017: Acta Stomatologica Croatica
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