• Title/Summary/Keyword: Reproductive problems

Search Result 149, Processing Time 0.03 seconds

Effect of the Vasectomy on the Fine Structure of the Sperm-Acrosome in Rats (정관절제가 흰쥐의 정자두부의 미세구조에 미치는 영향)

  • Ryoo, Hee-Soo;Kim, Kee-Soo
    • Clinical and Experimental Reproductive Medicine
    • /
    • v.8 no.2
    • /
    • pp.29-33
    • /
    • 1981
  • Vesectomy has been increased as a popular method of birth control because it is simpler than other methods for men. But the vasectomy results in several problems such as relation to effect changes on the structure and function of the reproductive organ. The fate of non-ejaculated spermatozoa is postulated by some authors that those are disappeared by a progress of dissolution and reabsorption in the epididymis, and we have attempted to prove the true state of sperm-acrosome on the fine structure in vasectomized rats. The results were as follows: 1. Apical segments of the acrosome were swollen similar to the shape of club in many spermatozoa. 2. Discontinuities of the outer and inner acrosomal membranes were occasionally noted and there were complete losses of acrosomes in the certain place. 3. There was no evidence of significant changes in the nuclear structure, nor dilatation of the subacrosomal space. 4. Vasectomy might effect destructive changes in the acrosomes of the non-ejaculated spermatozoa in situ.

  • PDF

TRADITIONAL PIG FARMING IN THE SOUTH PACIFIC: PROBLEMS AND OPPORTUNITIES FOR INCREASING PRODUCTIVITY

  • Ochetim, S.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.6 no.3
    • /
    • pp.347-360
    • /
    • 1993
  • The project was undertaken to provide information on the present system of traditional pig farming in the South Pacific region, to identify the problems currently limiting productivity of such pigs and to offer practical strategies which could be used for increasing productivity of the animals. The problems were identified by surveying some 220 subsistence pig farms in eleven island countries in the South Pacific region using a prepared questionnaire. The units were found to be generally small, consisting of about 2-4 sows per herd. The productivity of the units as assessed in terms of sow reproductive efficiency was rather low, being only about 7.5. Feed, housing, breeding, disease, marketing, lack of capital, technical know-how and existing social traditions were identified as current constraints. Based on three of the most limiting factors identified namely feed, housing and breeding, strategies for improvement were developed on the basis of better and more effective use of locally available feed resources, better housing and genetic improvement through crossbreeding programmes. These improvement strategies were tested as a package model on some ten farms in two of the island countries. The results of these on-farm trials indicated that using the improvement strategies increased sow reproductive efficiency by approximately 60 percent, to nearly 12. The significance of these findings in the overall management of traditionally raised pigs in the South Pacific region is discussed.

Reproductive Potentials of Gayal (Bos frontalis) under Semi-intensive Management

  • Giasuddin, M.;Huque, K.S.;Alam, J.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.16 no.3
    • /
    • pp.331-334
    • /
    • 2003
  • The assessment of reproductive potentials of female gayal under semi-intensive management was conducted with 18 animals in Bandarban hilly area of Bangladesh. Age at first estrous (days), age at first conception (days), length of estrous cycle (days), number of service per conception (natural), gestation period (days), age at first calving (days), and calving interval (natural service) (days) of gayal were $598.2{\pm}168.44$, $723{\pm}169.94$, $21.86{\pm}2.93$, 1.41, $296.05{\pm}3.87$, $1014.42{\pm}260.32$ and $465{\pm}80.48$ respectively. Daily milk yield and lactation length of gayal were $304.98{\pm}30.46ml/day$ and $116.67{\pm}8.08days$. Gayal male calves had higher birth weight (19.67 kg) than female calves (15.58 kg) in first lactation. Birth weight increases in second and third lactation than first lactation in both male and female calves. Highest conception rate observed in winter season and 70.60% successful conception occur when service was given within 21-30 h of estrous. Maximum number of female gayal use to come in estrous in winter and calved in monsoon and autumn. Cervicitis and irregular heat were the most reproductive problems followed by metritis, case of abortion, anestrous and repeat breeding. From this study it was observed that the reproductive performance of gayal is very close with the domestic cattle. It may use as beef cattle for the hilly regions of Bangladesh.

Exploring Factors Influencing Menstrual Symptom: Focus on University Students (월경 증상 영향요인 탐색: 일 대학 대학생을 중심으로)

  • Kim, Nam Hee
    • Journal of Korean Public Health Nursing
    • /
    • v.35 no.1
    • /
    • pp.120-134
    • /
    • 2021
  • Purpose: The reproductive health of women in early adulthood can affect pregnancy, childbirth, and menopause in later life. Menstrual symptoms not only affect daily life, but are also a reflection of a woman's reproductive health. This study was conducted to explore the factors affecting menstrual symptoms among university students. Methods: The general characteristics, life style, menstrual characteristics, stress, and menstrual symptom of 177 female students were assessed through an online survey at one university. An independent sample t-test, one-way variance analysis, correlation analysis, and multiple regression analysis were performed using the SPSS 22.0 program. Results: The menstrual symptom score was 91.68±32.11 points, and the score of 'mood change' was the highest. Stress (��=.38, p<.001), amount of menstruation (��=.20, p=.001), menarche age (��=-.18, p=.003), health problems (��=.16, p=.010), and age (��=.15, p=.016) were found to have a significant effect on menstrual symptom, and the explanatory power of the regression model was 40%. Conclusion: This study investigated the degree and influencing factors of menstrual symptom using the Korean Menstrual Symptom Scale (KMSS) developed for Korean university students. Among the factors influencing menstrual symptom, stress appeared to play a significant role. Stress management, observation of menstrual characteristics, and general health care are necessary to maintain a woman's reproductive health.

Reproductive Toxic Chemicals at Work and Efforts to Protect Workers' Health: A Literature Review

  • Rim, Kyung-Taek
    • Safety and Health at Work
    • /
    • v.8 no.2
    • /
    • pp.143-150
    • /
    • 2017
  • A huge number of chemicals are produced and used in the world, and some of them can have negative effects on the reproductive health of workers. To date, most chemicals and work environments have not been studied for their potential to have damaging effects on the workers' reproductive system. Because of the lack of information, many workers may not be aware that such problems can be related to occupational exposures. Newly industrialized countries such as Republic of Korea have rapidly amassed chemicals and other toxicants that pose health hazards, especially to the reproductive systems of workers. This literature review provides an overview of peer-reviewed literature regarding the teratogenic impact and need for safe handling of chemicals. Literature searches were performed using PubMed, Google Scholar, and ScienceDirect. Search strategies were narrowed based on author expertise and 100 articles were chosen for detailed analysis. A total of 47 articles met prespecified inclusion criteria. The majority of papers contained studies that were descriptive in nature with respect to the Medical Subject Headings (MeSH) terms and keywords: "reproductive and heath or hazard and/or workplace or workers or occupations." In the absence of complete information about the safe occupational handling of chemicals in Republic of Korea (other than a material safety data sheet), this review serves as a valuable reference for identifying and remedying potential gaps in relevant regulations. The review also proposes other public health actions including hazard surveillance and primary prevention activities such as reduction, substitution, ventilation, as well as protective equipment.

Health Problems in Clinical Nurses as Identified by Auricular Acupuncture Points (이혈로 본 임상간호사들의 건강문제)

  • Chun, Youngmi
    • Korean Journal of Occupational Health Nursing
    • /
    • v.28 no.3
    • /
    • pp.148-155
    • /
    • 2019
  • Purpose: The purpose of this study was to identify health problems in clinical nurses through an examination of their auricular acupuncture points. Methods: Data were collected from 90 nurses working in D city. Participants' ears were photographed and their auricular points were analyzed. Data analysis was performed by descriptive statistics and the $x^2$ test. Results: Musculoskeletal problems were the most severe, followed by problems of the digestive, nervous, and reproductive systems, in that order. Furthermore, the average number of health problems was 5.22, with a range of 4 to 6. Leg/foot pain was the highest reported musculoskeletal problem, followed by shoulder and lumbar/back pain. Gastric ptosis was the highest reported digestive problem, followed by indigestion and hypersensitive colitis. Additionally, among participants with gastric ptosis, lumbar pain was significantly high. Conclusion: The results suggest that further research using an auricular points as a diagnosis and treatment point is necessary to improve the health of nurses.

Effects of crocin and metformin on methylglyoxal-induced reproductive system dysfunction in diabetic male mice

  • Khorasani, Maryam Kheirollahi;Ahangarpour, Akram;Khorsandi, Layasadat
    • Clinical and Experimental Reproductive Medicine
    • /
    • v.48 no.3
    • /
    • pp.221-228
    • /
    • 2021
  • Objective: This study investigated the effect of crocin in methylglyoxal (MGO)-induced diabetic male mice. Methods: Seventy 1-month-old male NMRI mice weighing 20-25 g were divided into seven groups (n=10): sham, MGO (600 mg/kg/day), MGO+crocin (15, 30, and 60 mg/kg/day), MGO+metformin (150 mg/kg/day), and crocin (60 mg/kg/day). MGO was administered orally for 30 days. Starting on day 14, after confirming hyperglycemia, metformin and crocin were administered orally. On day 31, plasma and tissue samples were prepared for experimental assessments. Results: Blood glucose and insulin levels in the MGO group were higher than those in the sham group (p<0.001), and decreased in response to metformin (p<0.001) and crocin treatment (not at all doses). Testis width and volume decreased in the MGO mice and improved in the crocin-treated mice (p<0.05), but not in the metformin group. Superoxide dismutase levels decreased in diabetic mice (p<0.05) and malondialdehyde levels increased (p<0.001). Crocin and metformin improved malondialdehyde and superoxide dismutase. Testosterone (p<0.001) and sperm count (p<0.05) decreased in the diabetic mice, and treatment with metformin and crocin recovered these variables. Luteinizing hormone levels increased in diabetic mice (p<0.001) and crocin treatment (but not metformin) attenuated this increase. Seminiferous diameter and height decreased in the diabetic mice and increased in the treatment groups. Vacuoles and ruptures were seen in diabetic testicular tissue, and crocin improved testicular morphology (p<0.01). Conclusion: MGO increased oxidative stress, reduced sex hormones, and induced histological problems in male reproductive organs. Crocin and metformin improved the reproductive damage caused by MGO-induced diabetes.

Clinical Consideration of Obese Infertile Women (비만 불임여성에 대한 임상적 고찰)

  • Nam, Yoon-Sung;Jeong, Chang-Jin;Kim, Nam-Keun;Yoon, Tae-Ki;Cha, Kwang-Yul
    • Clinical and Experimental Reproductive Medicine
    • /
    • v.29 no.3
    • /
    • pp.209-214
    • /
    • 2002
  • Objective : To analyze the clinical characteristics of obese infertile women. Material and Method: Height, weight, body mass index, menstrual pattern, glucose, insulin, glucose/insulin ratio, dehydroepiandrosterone sulfate (DHEA-S), testosterone, free testosterone and plasminogen activator inhibitor (PAI-1) of 15 obese infertile women were tested. Results: Of 15 obese infertile women, the number of diabetes mellitus, hyperinsulinemia, and insulin resistance was 2 (13%), 2 (13%), 2 (13%), respectively. The incidence of increased DHEA-S, testosterone, and free testosterone was 7 (47%), 1 (7%), 6 (40%), respectively. Notably, all patients showed increased PAI-1. Conclusions: Obesity is associated with infertility as well as many kinds of health problems. Obesity is closely related to insulin resistance and it also causes hyperandrogenism. Increased PAI-1 is one of the important causes of thrombophilia. Consequently, in the workup of obese infertile patient, many aspects of health problems should be considered.

Efficacy of ISO 9001 : 2000 Quality Management System in Human Assisted Reproductive Technology Center (보조생식술 센터에서 ISO 9001 : 2000 품질경영시스템의 도입 및 시행의 효용성)

  • Jun, Jin-Hyun;Park, Yong-Seog;Lee, Hyoung-Song;Kim, Soon-Duk;Hwang, Son-Hee;Han, Su-Kyoung;Kim, Jae-Ho;Song, In-Ok;Kang, Inn-Soo;Koong, Mi-Kyoung
    • Clinical and Experimental Reproductive Medicine
    • /
    • v.34 no.2
    • /
    • pp.107-115
    • /
    • 2007
  • Objective: A quality management system of international standardization organization (ISO) 9001:2000 has been proposed to properly evaluate and improve the quality of productions and services. The purpose of this article was to describe on successful introduction and application of the ISO system to human assisted reproductive technology (ART) center. Methods: Center for reproductive medicine and infertility of Cheil General Hospital started the action for ISO 9001:2000 certification at January-2004. The ISO system of our center was monitored by measuring the customer satisfaction index and periodical internal and external audit. Reports of non-conformity described corrective and preventive actions for problems and occurrences that were not consistent with the standard process and operation of our center. Continuous management and improvement were performed on the project of customer dissatisfaction. Results: Our center has got the certification of ISO 9001:2000 for "Research and development of IVF-ET program for infertility treatment" from Korean Foundation for Quality at June-2004. The policy of ISO was "To establish the best center of reproductive medicine and infertility" and "To establish the best quality management system". We found 140 cases and 7 cases of non-conformity in internal and external audit for three years, respectively, and performed corrective action. Conclusion: Improvement of customer satisfaction, systemic documentation and transparency and efficacy of working procedure were achieved by application and operation of the ISO system to our center. This ISO system could be used as a basic institutional management system for the national guideline to the human ART center.