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World Fertility and Family Planning 2020: Highlights (ST/ESA/SER.A/440)
World Fertility and Family Planning 2020 Highlights ST/ESA/SER.A/440 Department of Economic and Social Affairs Population Division World Fertility and Family Planning 2020 Highlights United Nations New York, 2020 The Department of Economic and Social Affairs of the United Nations Secretariat is a vital interface between global policies in the economic, social and environmental spheres and national action. The Department works in three main interlinked areas: (i) it compiles, generates and analyses a wide range of economic, social and environmental data and information on which States Members of the United Nations draw to review common problems and take stock of policy options; (ii) it facilitates the negotiations of Member States in many intergovernmental bodies on joint courses of action to address ongoing or emerging global challenges; and (iii) it advises interested Governments on the ways and means of translating policy frameworks developed in United Nations conferences and summits into programmes at the country level and, through technical assistance, helps build national capacities. The Population Division of the Department of Economic and Social Affairs provides the international community with timely and accessible population data and analysis of population trends and development outcomes for all countries and areas of the world. To this end, the Division undertakes regular studies of population size and characteristics and of all three components of population change (fertility, mortality and migration). Founded in 1946, the Population Division provides substantive support on population and development issues to the United Nations General Assembly, the Economic and Social Council and the Commission on Population and Development. It also leads or participates in various interagency coordination mechanisms of the United Nations system. -
Evolution of Oviductal Gestation in Amphibians MARVALEE H
THE JOURNAL OF EXPERIMENTAL ZOOLOGY 266394-413 (1993) Evolution of Oviductal Gestation in Amphibians MARVALEE H. WAKE Department of Integrative Biology and Museum of Vertebrate Zoology, University of California,Berkeley, California 94720 ABSTRACT Oviductal retention of developing embryos, with provision for maternal nutrition after yolk is exhausted (viviparity) and maintenance through metamorphosis, has evolved indepen- dently in each of the three living orders of amphibians, the Anura (frogs and toads), the Urodela (salamanders and newts), and the Gymnophiona (caecilians). In anurans and urodeles obligate vivi- parity is very rare (less than 1%of species); a few additional species retain the developing young, but nutrition is yolk-dependent (ovoviviparity) and, at least in salamanders, the young may be born be- fore metamorphosis is complete. However, in caecilians probably the majority of the approximately 170 species are viviparous, and none are ovoviviparous. All of the amphibians that retain their young oviductally practice internal fertilization; the mechanism is cloaca1 apposition in frogs, spermato- phore reception in salamanders, and intromission in caecilians. Internal fertilization is a necessary but not sufficient exaptation (sensu Gould and Vrba: Paleobiology 8:4-15, ’82) for viviparity. The sala- manders and all but one of the frogs that are oviductal developers live at high altitudes and are subject to rigorous climatic variables; hence, it has been suggested that cold might be a “selection pressure” for the evolution of egg retention. However, one frog and all the live-bearing caecilians are tropical low to middle elevation inhabitants, so factors other than cold are implicated in the evolu- tion of live-bearing. -
Oogenesis [PDF]
Oogenesis Dr Navneet Kumar Professor (Anatomy) K.G.M.U Dr NavneetKumar Professor Anatomy KGMU Lko Oogenesis • Development of ovum (oogenesis) • Maturation of follicle • Fate of ovum and follicle Dr NavneetKumar Professor Anatomy KGMU Lko Dr NavneetKumar Professor Anatomy KGMU Lko Oogenesis • Site – ovary • Duration – 7th week of embryo –primordial germ cells • -3rd month of fetus –oogonium • - two million primary oocyte • -7th month of fetus primary oocyte +primary follicle • - at birth primary oocyte with prophase of • 1st meiotic division • - 40 thousand primary oocyte in adult ovary • - 500 primary oocyte attain maturity • - oogenesis completed after fertilization Dr Navneet Kumar Dr NavneetKumar Professor Professor (Anatomy) Anatomy KGMU Lko K.G.M.U Development of ovum Oogonium(44XX) -In fetal ovary Primary oocyte (44XX) arrest till puberty in prophase of 1st phase meiotic division Secondary oocyte(22X)+Polar body(22X) 1st phase meiotic division completed at ovulation &enter in 2nd phase Ovum(22X)+polarbody(22X) After fertilization Dr NavneetKumar Professor Anatomy KGMU Lko Dr NavneetKumar Professor Anatomy KGMU Lko Dr Navneet Kumar Dr ProfessorNavneetKumar (Anatomy) Professor K.G.M.UAnatomy KGMU Lko Dr NavneetKumar Professor Anatomy KGMU Lko Maturation of follicle Dr NavneetKumar Professor Anatomy KGMU Lko Maturation of follicle Primordial follicle -Follicular cells Primary follicle -Zona pallucida -Granulosa cells Secondary follicle Antrum developed Ovarian /Graafian follicle - Theca interna &externa -Membrana granulosa -Antrial -
Knowledge, Intentions, and Beliefs About Fertility and Assisted
KNOWLEDGE, INTENTIONS, AND BELIEFS ABOUT FERTILITY AND ASSISTED REPRODUCTIVE TECHNOLOGY AMONG ILLINOIS COLLEGE STUDENTS by Akilah Morris Smith B.S., Illinois State University, 2006 M.S., Illinois State University, 2008 A Dissertation Submitted in Partial Fulfillment of the Requirements for the Doctorate in Philosophy Department of Public Health and Recreation Professions in the College of Education Southern Illinois University Carbondale Spring 2018 Copyright by Akilah Morris Smith, 2018 All Rights Reserved i DEDICATION I want to thank My Heavenly Father for all his guidance, support and love during this time. Thanks for challenging and blessing me. I have learned that you are authentic and real in my life. I also want to thank my mother and father Olivia and Arthur Morris for loving and supporting me unconditionally through this time. I am grateful for the best brother in the world Oheni Morris, thank you for your light heartedness, positivity and love. Thanks to my husband Wayon Smith III, son Wayon Smith IV (KJ) and in laws Mr. and Mrs. Wayon Simth Jr. and Mrs. Faye Freeman Smith for helping me during graduate school. ii ACKNOWLEDGEMENTS Thanks to my extended family and friends who listened and added valuable input during this season of my life. Special thanks to Dr. Ogletree, Dr. Wallace, Dr. Melonie Ewing, Dr. Shelby Caffey, and Dr. Diehr for their commitment in seeing me through this process. iii AN ABSTRACT OF THE DISSERTATION OF AKILAH MORRIS SMITH, for the Doctor of Philosophy degree in Public Health, presented on April 11th 2018, at Southern Illinois University Carbondale. TITLE: KNOWLEDGE, INTENTIONS, AND BELIEFS ABOUT FERTILITY AND ASSISTED REPRODUCTIVE TECHNOLOGY AMONG ILLINOIS COLLEGE STUDENTS MAJOR PROFESSOR: Roberta Ogletree H.S.D and Juliane P. -
Infertility Investigations for Women
Infertility investigations for women Brooke Building Gynaecology Department 0161 206 5224 © G21031001W. Design Services, Salford Royal NHS Foundation Trust, All Rights Reserved 2021. Document for issue as handout. Unique Identifier: SURG08(21). Review date: May 2023. This booklet is aimed for women undergoing fertility LH (Luteinising Hormone) Progesterone investigations. Its’ aim is to Oligomenorrhoea - When the provide you with some useful periods are occurring three In women, luteinising hormone Progesterone is a female information regarding your or four times a year (LH) is linked to ovarian hormone produced by the hormone production and egg ovaries after ovulation. It investigations. Irregular cycle - Periods that maturation. LH is used to causes the endometrial lining vary in length We hope you !nd this booklet measure a woman’s ovarian of the uterus to get thicker, helpful. The following blood tests are reserve (egg supply). making it receptive for a used to investigate whether You will be advised to have some It causes the follicles to grow, fertilised egg. ovulation (production of an egg) or all of the following tests: mature and release the eggs Progesterone levels increase is occurring each month and also for fertilisation. It reaches its after ovulation, reaching a to help determine which fertility Hormone blood tests highest level (the LH surge) in maximum level seven days treatments to offer. Follicular bloods tests the middle of the menstrual before the start of the next cycle 48 hours prior to ovulation period. The progesterone test is These routine blood tests are FSH (Follicle Stimulating i.e. days 12-14 of a 28 day cycle. -
Understanding Your Menstrual Cycle If You're Trying to Conceive
IS MY PERIOD NORMAL? Understanding Your Menstrual Cycle If You’re Trying to Conceive More than 70% 11% 95% of women have or more of of U.S. women start irregular menstrual American women their periods by cycles as menopause suffer from age 16. approaches. endometriosis.1 10% 12% of U.S. women are of women have affected by PCOS trouble getting or (polycystic ovary staying pregnant.3 syndrome).2 Fortunately, your menstrual cycle can tell you a lot about your fertility if you know what to look for. TYPES OF MENSTRUAL CYCLES Only 15% of About Normal = women have 30% of women are fertile only during 21 to 35 days the “perfect” the “normal” fertility 28-day cycle. window—between days 10 and 17 of the menstrual cycle. Day 1 Period starts (aka menses) 27 28 1 2 26 3 25 4 24 5 Day 15-28 23 6 Day 2-14 Luteal phase; Follicular phase; progesterone** 22 WHAT’S NORMAL? 7 FSH released, (follicle- uterine lining 21 8 stimulating matures Give or take a few days, hormone) and a normal cycle looks like this: estrogen released, 20 9 ovulation* begins 19 10 18 11 17 12 16 15 14 13 *ovulation: the process of an ovum (egg) being released from the ovary; occurs 10-14 days before menses. **progesterone: a steroid hormone that tells the uterus to prepare for pregnancy At least 30% of women have an “irregular” cycle either short, long or inconsistent. Short = Long = < 21 days > 35 days May be a sign of: May be a sign of: Hormonal imbalance Hormonal imbalance Ovaries with fewer eggs Lack of ovulation Approach of menopause Other fertility issues Reduced fertility4 Increased risk of miscarriage SIGNS TO WATCH FOR Your menstrual cycle provides valuable clues about your body’s reproductive health. -
Should Men Worry About Dry Orgasms? a Dry Orgasm?
The Online Resource for Sexual Health Patient Education SexHealthMatters.org is brought to you by the Sexual Medicine Society of North America, Inc. Should Men Worry About Dry Orgasms? A dry orgasm? For men, it sounds like a contradiction, doesn’t it? Men ejaculate semen at orgasm. Doesn’t that make orgasms, by definition, wet? The answer is: Not all the time. Some men reach orgasm – and feel great pleasure from it – but do not ejaculate any semen at all. Or, they might ejaculate a very small amount. This is what we mean by “dry orgasm.” While they might seem a bit unusual, dry orgasms are usually nothing to worry about. They can be a challenge for couples who would like to conceive, but they generally not a health risk. What causes dry orgasms? Men may have dry orgasms for a variety of reasons. Younger men with short refractory periods might have them occasionally. The refractory period is a period of time after orgasm during which a man’s body recovers and doesn’t respond to sexual stimulation. These intervals often don’t last long in younger men. In fact, it can be just minutes before a man is “ready to go” again. And he might climax several times during one sexual encounter. Eventually, however, the well runs dry. A man has a limited amount of semen to ejaculate and if he keeps going, that supply will be depleted. It’s not a cause for worry, though. In a day or two, the man’s body will produce semen to replace what has been ejaculated and he’ll be back to a full supply. -
A Fixed Formula to Define the Fertile Window of the Menstrual Cycle As the Basis of a Simple Method of Natural Family Planning
ORIGINAL RESEARCH ARTICLE A Fixed Formula to Define the Fertile Window of the Menstrual Cycle as the Basis of a Simple Method of Natural Family Planning Marcos Are´valo,* Irit Sinai,* and Victoria Jennings* A significant number of women worldwide use periodic basis of the proposed Standard Days method, a simple abstinence as their method of family planning. Many of method of natural family planning (NFP). Survey data them use some type of calendar-based approach to deter- from a number of countries around the world show mine when they should abstain from unprotected inter- that a substantial number of women worldwide use course to avoid pregnancy; yet they often lack correct periodic abstinence as their method of family plan- knowledge of when during their menstrual cycle they are ning.1 Many of these women use calendar-based ap- most likely to become pregnant. A simple method of proaches to determine when they should abstain from natural family planning (NFP) based on a fixed formula to unprotected intercourse to avoid pregnancy. How- define the fertile window could be useful to these women. ever, research also indicates that a significant per- This article reports the results of an analysis of the appli- centage of women who claim to use periodic absti- cation of a fixed formula to define the fertile window. A nence lack correct knowledge of when during their large existing data set from a World Health Organization menstrual cycle they are most likely to become study of the Ovulation Method was used to estimate the pregnant.a Most of these women simply abstain from theoretical probability of pregnancy using this formula. -
Thinking About Having a Baby? Most People Want to Become Parents One Day
Thinking about having a baby? Most people want to become parents one day Fertility is the ability to have a baby. Many things can affect women’s and men’s fertility, including their age, when they have sex, how healthy they are, and whether they have any medical conditions. 5 ways to improve your chance of getting pregnant and having a healthy baby 1. Age If you have a choice, trying for a baby sooner rather than later improves your Age is the most important factor when it comes to fertility, as fertility declines with age. chance of pregnancy. Women younger than 35 and men younger than 40 have a better chance of having a child than 2. Timing of sex people who are older. This is true for natural pregnancies and for pregnancies conceived Having sex on the days when a woman is fertile, through assisted reproductive treatments such increases the chance of pregnancy. It’s all about as IVF (in-vitro fertilisation). timing! After having sex, sperm live for about five days. Eggs can only be fertilised for about one • Women younger than 30 have about a 20 day after ovulation (when an egg is released per cent chance of getting pregnant naturally from the ovary). each month. By age 40, the chance of pregnancy is about five per cent each month. The best time to have sex to become pregnant is during the ‘fertile window’, which is the day • It takes longer to conceive for women whose of ovulation and the five days before that. A male partners are older than 40. -
COVID-19 Vaccination and Reproduction: Pregnancy, Lactation, Fertility, and Family
COVID-19 Vaccination and Reproduction: Pregnancy, Lactation, Fertility, and Family Sarah L. Berga, MD Professor and Chair Department of Obstetrics and Gynecology Jacobs School of Medicine and Biomedical Sciences | UB SUNY Medical Director Obstetrics and Gynecology and Women’s Health Program Development Oishei Children’s Hospital | Kaleida Health Disclosures: Sarah L Berga MD August 2021 CONSULTING: Ferring Pharmaceuticals SW Reproductive Health Advisory Board, 10.25.19, Denver, CO ClearBlue Medical Advisory Board, 11.20.19, Washington DC EDITORIAL BOARDS & POSITIONS: American Journal of Obstetrics and Gynecology, Advisory Board: 2003-present (Gratis) Human Reproduction Update, Associate Editor, 2017 to 2020 (gratis) International Society for Gynecological Endocrinology, Executive Committee Member: 2004-present (Gratis) Journal of Obstetrics and Gynecology Canada, International Editorial Board: 2017-present (Gratis) Mayo Clinic Proceedings, Editorial Board: 2019-present (Gratis) Menopause, Editorial Board: 1999-present (Gratis) UpToDate, Peer Review Board: 2005-present SERVICE: Member, Board of Trustees, Salem Academy and College, Salem, NC: 2018-present (Gratis) COVID-19 Vaccination and Reproduction: Pregnancy, Lactation, Fertility, and Family LEARNING OBJECTIVES • Understand the risks and benefits of COVID-19 vs COVID-19 vaccination in: • Men and women with infertility or fertility concerns • Pregnant women • Lactating women • Family members COVID-19 Vaccination and Reproduction: Pregnancy, Lactation, Fertility, and Family • Vaccination -
ASCO Answers: Your Fertility and Cancer Treatment
Your Fertility and Cancer Treatment What is fertility and infertility? Fertility is the physical ability to have a child. It means you can become pregnant and give birth to a baby, or you are able to fertilize an egg with sperm. Infertility means you are not physically able to have a child. A person with infertility is not able to become pregnant, maintain a pregnancy, or fertilize an egg. Could cancer treatment affect my fertility? Often, yes. Infertility has many different causes, including some types of cancer treatment. If you want to have a child after cancer treatment, talk with your oncologist about your fertility before starting cancer treatment. Cancer treatment can cause infertility by damaging or destroying eggs or sperm and by damaging or removing organs involved in creating or carrying an unborn baby, such as the testicles, ovaries, or uterus. Which cancer treatments can cause infertility? Chemotherapy is the most common cancer treatment that may affect a person’s fertility. Ask about targeted therapy and immunotherapy drugs, too. Some medications, especially drugs called “alkylating agents,” have a higher risk of causing infertility. Cancer medications that affect fertility can be used for many different types of cancer. Radiation therapy and surgery affecting certain areas of the body can also make you infertile. For example, removing the uterus or ovaries will cause infertility. If a treatment causes early menopause, the time when ovaries stop producing estrogen, it may cause infertility. Before treatment, ask your health care provider if any part of your cancer treatment plan could affect your fertility. Can I plan ahead to have children after cancer treatment? In many cases, yes. -
Committee for Monitoring Assisted Reproductive Technology (ICMART) and the World Health Organization (WHO) Revised Glossary on ART Terminology, 2009†
Human Reproduction, Vol.24, No.11 pp. 2683–2687, 2009 Advanced Access publication on October 4, 2009 doi:10.1093/humrep/dep343 SIMULTANEOUS PUBLICATION Infertility The International Committee for Monitoring Assisted Reproductive Technology (ICMART) and the World Health Organization (WHO) Revised Glossary on ART Terminology, 2009† F. Zegers-Hochschild1,9, G.D. Adamson2, J. de Mouzon3, O. Ishihara4, R. Mansour5, K. Nygren6, E. Sullivan7, and S. van der Poel8 on behalf of ICMART and WHO 1Unit of Reproductive Medicine, Clinicas las Condes, Santiago, Chile 2Fertility Physicians of Northern California, Palo Alto and San Jose, California, USA 3INSERM U822, Hoˆpital de Biceˆtre, Le Kremlin Biceˆtre Cedex, Paris, France 4Saitama Medical University Hospital, Moroyama, Saitana 350-0495, JAPAN 53 Rd 161 Maadi, Cairo 11431, Egypt 6IVF Unit, Sophiahemmet Hospital, Stockholm, Sweden 7Perinatal and Reproductive Epidemiology and Research Unit, School Women’s and Children’s Health, University of New South Wales, Sydney, Australia 8Department of Reproductive Health and Research, and the Special Program of Research, Development and Research Training in Human Reproduction, World Health Organization, Geneva, Switzerland 9Correspondence address: Unit of Reproductive Medicine, Clinica las Condes, Lo Fontecilla, 441, Santiago, Chile. Fax: 56-2-6108167, E-mail: [email protected] background: Many definitions used in medically assisted reproduction (MAR) vary in different settings, making it difficult to standardize and compare procedures in different countries and regions. With the expansion of infertility interventions worldwide, including lower resource settings, the importance and value of a common nomenclature is critical. The objective is to develop an internationally accepted and continually updated set of definitions, which would be utilized to standardize and harmonize international data collection, and to assist in monitoring the availability, efficacy, and safety of assisted reproductive technology (ART) being practiced worldwide.