Uterus
It is responsible for the implantation and development of a fertilized egg, as well as the expulsion of the fetus during childbirth.
The uterus is composed of three main layers: the endometrium, the myometrium, and the perimetrium.
The endometrium is the inner lining of the uterus that undergoes cyclic changes during the menstrual cycle.
The myometrium is the middle, muscular layer that contracts during childbirth to facilitate the delivery of the fetus.
The perimetrium is the outer, serous layer that covers the uterus.
The uterus is connected to the fallopian tubes, which transport the egg from the ovaries to the uterus.
Disorders of the uterus can include uterine fibroids, endometriosis, and uterine cancer, among others.
Proper understadning and optimization of uterine function is crucial for women's health and reproductive outcomes.
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When the female is in proestrus, mostly nucleated and some cornified epithelial cells are present. Some leukocytes may be present if the female is in early proestrus. As the stage of the cycle advances to estrus, mostly cornified epithelial cells are present. If the cycle is not interrupted by pregnancy, pseudopregnancy, or other phenomena, metestrus will begin. Metestrus is a brief stage when the corpora lutea form but fail to fully luteinize due to a lack of progesterone. The uterine lining will begin to slough and evidence of this is seen in the form of cornified eipithelial cells and polymorphonuclear leukocytes present in vaginal swabs. Some nucleated epithelia cells will also be present in late metestrus. Diestrus is the longest of the stages lasting more than 2 days. Vaginal swabs during diestrus show primarily polymorphonuclear leukocytes and a few epithelial cells during late diestrus. Leukocytes remain the predominant cell type having removed cellular debris. The cycle then repeats.
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Example 20
Fertility—Progesterone is one of the most important hormones for pregnancy with myriad functions from ensuring implantation of the egg into a healthy uterine wall, to ensuring embryo survival and prevention of immune rejection of the developing baby. Many other hormones act in concert with progesterone, like Follicular Stimulating Hormone (FSH) and Luteinizing Hormone (LH) and can be used to assess optimal fertility windows on a monthly basis. And in fact an over dominant production of estrogen can lead to progesterone deficiency and thus difficulty getting or staying pregnant. It is important that women not only monitor FSH and LH to determine optimal fertility for getting pregnant, but ensure that sufficient levels or progesterone are being produced to ensure pregnancy and viability of the fetus. A study from the British Medical Journal, 2012, demonstrated that a single progesterone level test can help discriminate between viable and nonviable pregnancies. Among women who had an ultrasound, 73 percent had nonviable pregnancies. But among women with progesterone levels below 3 to 6 nanograms per milliliter, the probability of a nonviable pregnancy rose to more than 99 percent (Gallos L et al. British Medical J, 2012).
Perimenopause—Monitoring hormone levels during the menopausal transition may help women better understand important changes in their body and allow them to make more informed decisions about health, diet, and lifestyle. According to Hale G E (Best Pract Res Clin Obstet Gynaecol, 2009), data from endocrine studies on women throughout the menopausal transition show changes in levels of steroid hormones and gonadotropins (Progesterone, Estrodiol, LH, FSH and AMH) and follicle-stimulating hormone undergoes the first detectable change while menstrual cycles remain regular. Erratic and less predictable changes in steroid hormones follow, especially with the onset of irregular cycles. Later serum hormone studies on the inhibins and anti-Mullerian hormone established that diminishing ovarian follicle number contributes to the endocrine changes with advancing reproductive age.
Many fertility issues revolve around genetic, anatomical or other disorders that may either prevent a woman from becoming pregnant and/or staying pregnant. Some of these disorders include hormonal imbalances, diabetes, a short or insufficient cervix, and acute or chronic infections. A cascade of genes has been implicated in the occurrence of getting and staying pregnant. These genes have been studied using genotyping, gene expression, and proteomic analysis to assess a woman's ability to stay pregnant.
In some embodiments the disclosed device focuses on detecting levels of Progesterone, LH, FSH, Estrodiol, AMH, genotyping, gene expression through RNA and methylome sequencing, qPCR and proteomic analysis for fertility and menopause management from menstrual blood or cervicovaginal fluid.
Composition and nutrient concentrations of basal diet (%, unless noted, as-is basis)
Item | Low phosphorus | Regular phosphorus |
---|---|---|
Ingredients | ||
Corn | 56.69 | 56.69 |
Soybean meal | 25.77 | 25.77 |
Distillers dried grains with solubles | 4.00 | 4.00 |
Calcium carbonate | 9.73 | 9.04 |
Dicalcium phosphate | - | 1.15 |
Soybean oil | 1.51 | 1.51 |
Sodium chloride | 0.26 | 0.26 |
DL-Methionine | 0.18 | 0.18 |
Choline chloride | 0.15 | 0.15 |
Montmorillonite | 0.71 | 0.25 |
Premix1 | 1 | 1 |
In total | 100.00 | 100.00 |
Nutrient levels | ||
Metabolizable energy, kcal/kg (calculated) | 2,600 | 2,600 |
Crude protein (calculated) | 16.5 | 16.5 |
Total phosphorus (calculated/analyzed) | 0.34/0.34 | 0.53/0.49 |
Non-phytate phosphorus (calculated) | 0.14 | 0.32 |
Calcium (calculated/analyzed) | 3.50/3.47 | 3.50/3.52 |
1Provided per kilogram of diet: manganese 60 mg, copper 8 mg, zinc 80 mg, iodine 0.35 mg, selenium 0.3 mg, vitamin A 8000 IU, vitamin E 30 mg, vitamin K3 1.5 mg, thiamine 4 mg, riboflavin 13 mg, pantothenic acid 15 mg, nicotinamide 20 mg, pyridoxine 6 mg, biotin 0.15 mg, folic acid 1.5 mg, and cobalamin 0.02 mg
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More about "Uterus"
Also known as the womb, this muscular, hollow structure is responsible for the implantation and development of a fertilized egg, as well as the expulsion of the fetus during childbirth.
The uterus is composed of three main layers: the endometrium, the myometrium, and the perimetrium.
The endometrium is the inner lining of the uterus that undergoes cyclic changes during the menstrual cycle.
This dynamic process is essential for the preparation of the uterus to receive a fertilized egg.
The myometrium, the middle layer, is the muscular component that contracts during childbirth, facilitating the delivery of the fetus.
The perimetrium is the outer, serous layer that covers the uterus.
The uterus is connected to the fallopian tubes, which transport the egg from the ovaries to the uterus.
This intricate network allows for the seamless passage of the egg and the potential for fertilization.
Proper understanding and optimization of uterine function are crucial for women's health and reproductive outcomes.
Researchers often utilize various techniques and tools to study the uterus and its function.
TRIzol reagent, a popular RNA extraction method, can be used to isolate high-quality RNA from uterine tissue samples.
Fast Green, a staining dye, can be employed to visualize specific cellular structures within the uterus.
Fetal bovine serum (FBS) is a commonly used supplement in cell culture media, such as DMEM/F12, to support the growth and maintenance of uterine cells in vitro.
The RNeasy Mini Kit, another RNA extraction method, can be used to purify RNA from uterine samples for downstream analysis.
Penicillin/streptomycin, an antibiotic mixture, is often added to cell culture media to prevent bacterial contamination during uterine cell experiments.
RNAlater, a RNA stabilization solution, can be used to preserve uterine tissue samples for later analysis.
The High-Capacity cDNA Reverse Transcription Kit is a valuable tool for converting extracted RNA into complementary DNA (cDNA), which can then be used for gene expression studies related to uterine function.
By leveraging these research tools and techniques, scientists can gain deeper insights into the complex mechanisms underlying uterine physiology and pathology, ultimately leading to advancements in women's health and reproductive medicine.