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The breast is one of two prominences located on the upper ventral region of a primate's torso. Both females and males develop breasts from the same embryological tissues.
Plastic surgery is a surgical specialty involving the restoration, reconstruction or alteration of the human body. It can be divided into two main categories: reconstructive surgery and cosmetic surgery. Reconstructive surgery includes craniofacial surgery, hand surgery, microsurgery, and the treatment of burns. While reconstructive surgery aims to reconstruct a part of the body or improve its functioning, cosmetic surgery aims at improving the appearance of it. Comprehensive definition of plastic surgery has never been established, because it has no distinct anatomical object and thus overlaps with practically all other surgical specialties. An essential feature of plastic surgery is that it involves treatment of conditions that require or may require tissue relocation skills.
Penis enlargement, or male enhancement, is any technique aimed to increase the size of a human penis. Some methods aim to increase total length, others the shaft's girth, and yet others the glans size. Techniques include surgery, supplements, ointments, patches, and physical methods like pumping, jelqing, and traction.
Mammaplasty refers to a group of surgical procedures, the goal of which is to reshape or otherwise modify the appearance of the breast. There are two main types of mammoplasty:
- Augmentation mammaplasty is commonly performed to increase the size, change the shape, and/or alter the texture of the breasts. This usually involves the surgical implantation of breast implant devices.
- Reduction mammaplasty is commonly performed to reduce the size, change the shape, and/or alter the texture of the breasts. This involves the removal of breast tissue.
Adipose tissue (also known as body fat, or simply fat) is a loose connective tissue composed mostly of adipocytes. In addition to adipocytes, adipose tissue contains the stromal vascular fraction(SVF) of cells including preadipocytes, fibroblasts, vascular endothelial cells and a variety of immune cells such as adipose tissue macrophages. Adipose tissue is derived from preadipocytes. Its main role is to store energy in the form of lipids, although it also cushions and insulates the body. Far from being hormonally inert, adipose tissue has, in recent years, been recognized as a major endocrine organ, as it produces hormones such as leptin, estrogen, resistin, and cytokines (especially TNFα). In obesity, adipose tissue is also implicated in the chronic release of pro-inflammatory markers known as adipokines, which are responsible for the development of metabolic syndrome, a constellation of diseases, including type 2 diabetes, cardiovascular disease and atherosclerosis. The two types of adipose tissue are white adipose tissue (WAT), which stores energy, and brown adipose tissue (BAT), which generates body heat. The formation of adipose tissue appears to be controlled in part by the adipose gene. Adipose tissue – more specifically brown adipose tissue – was first identified by the Swiss naturalist Conrad Gessner in 1551.
Adipocytes, also known as lipocytes and fat cells, are the cells that primarily compose adipose tissue, specialized in storing energy as fat. Adipocytes are derived from mesenchymal stem cells which give rise to adipocytes through adipogenesis. In cell culture, adipocyte progenitors can also form osteoblasts, myocytes and other cell types.
Breast augmentation and augmentation mammoplasty is a cosmetic surgery technique using breast-implants and fat-graft mammoplasty techniques to increase the size, change the shape, and alter the texture of the breasts. Augmentation mammoplasty is applied to correct congenital defects of the breasts and the chest wall. As an elective cosmetic surgery, primary augmentation changes the aesthetics – of size, shape, and texture – of healthy breasts.
Reduction mammoplasty is the plastic surgery procedure for reducing the size of large breasts. In a breast reduction surgery for re-establishing a functional bust that is proportionate to the patient's body, the critical corrective consideration is the tissue viability of the nipple–areola complex (NAC), to ensure the functional sensitivity and lactational capability of the breasts. The indications for breast reduction surgery are three-fold – physical, aesthetic, and psychological – the restoration of the bust, of the patient's self-image, and of the patient's mental health.
Gluteoplasty denotes the plastic surgery and the liposuction procedures for the correction of the congenital, traumatic, and acquired defects and deformities of the buttocks and the anatomy of the gluteal region; and for the aesthetic enhancement of the contour of the buttocks.
In biochemistry, lipogenesis is the conversion of fatty acids and glycerol into fats, or a metabolic process through which acetyl-CoA is converted to triglyceride for storage in fat. Lipogenesis encompasses both fatty acid and triglyceride synthesis, with the latter being the process by which fatty acids are esterified to glycerol before being packaged into very-low-density lipoprotein (VLDL). Fatty acids are produced in the cytoplasm of cells by repeatedly adding two-carbon units to acetyl-CoA. Triacylglycerol synthesis, on the other hand, occurs in the endoplasmic reticulum membrane of cells by bonding three fatty acid molecules to a glycerol molecule. Both processes take place mainly in liver and adipose tissue. Nevertheless, it also occurs to some extent in other tissues such as the gut and kidney. A review on lipogenesis in the brain was published in 2008 by Lopez and Vidal-Puig. After being packaged into VLDL in the liver, the resulting lipoprotein is then secreted directly into the blood for delivery to peripheral tissues.
Micromastia is a medical term describing the postpubertal underdevelopment of a woman's breast tissue. Just as it is impossible to define 'normal' breast size, there is no objective definition of micromastia. Breast development is commonly asymmetric and one or both breasts may be small. This condition may be a congenital defect associated with underlying abnormalities of the pectoral muscle, related to trauma or it may be a more subjective aesthetic description.
A breast implant is a prosthesis used to change the size, shape, and contour of a person's breast. In reconstructive plastic surgery, breast implants can be placed to restore a natural looking breast following a mastectomy, to correct congenital defects and deformities of the chest wall or, cosmetically, to enlarge the appearance of the breast through breast augmentation surgery.
Mastopexy is the plastic surgery mammoplasty procedure for raising sagging breasts upon the chest of the woman, by changing and modifying the size, contour, and elevation of the breasts. In a breast-lift surgery to re-establish an aesthetically proportionate bust for the woman, the critical corrective consideration is the tissue viability of the nipple-areola complex (NAC), to ensure the functional sensitivity of the breasts for lactation and breast-feeding.
Human body shape is a complex phenomenon with sophisticated detail and function. The general shape or figure of a person is defined mainly by the molding of skeletal structures, as well as the distribution of muscles and fat. Skeletal structure grows and changes only up to the point at which a human reaches adulthood and remains essentially the same for the rest of their life. Growth is usually completed between the ages of 13 and 18, at which time the epiphyseal plates of long bones close, allowing no further growth.
Estrogenic fat is a form of adipose tissue which develops under the influence of estrogen, and particularly estradiol, in women.
Puberty is the process of physical changes through which a child's body matures into an adult body capable of sexual reproduction. It is initiated by hormonal signals from the brain to the gonads: the ovaries in a female, the testicles in a male. In response to the signals, the gonads produce hormones that stimulate libido and the growth, function, and transformation of the brain, bones, muscle, blood, skin, hair, breasts, and sex organs. Physical growth—height and weight—accelerates in the first half of puberty and is completed when an adult body has been developed. Before puberty, the external sex organs, known as primary sexual characteristics, are sex characteristics that distinguish males and females. Puberty leads to sexual dimorphism through the development of the secondary sex characteristics, which further distinguish the sexes.
MIRA is a multidisciplinary and complementary method for treating many chronic diseases. The MIRA Procedure is a result of combining efforts from different medical fields developed in the University of Chicago in 1992. It basically consists in medically grafting live rejuvenated tissue in the form of autologous adipose adult stem cells to a damaged organ in order to restore it and improve its function. This method is currently approved by the U.S. Food and Drug Administration (FDA).
Gynecomastia is the abnormal non-cancerous enlargement of one or both breasts in males due to the growth of breast tissue as a result of a hormone imbalance between estrogens and androgens. Gynecomastia can cause significant psychological distress or unease.
Stem cellfat grafting is autotransplantation of adipose-derived stem cells (ADSCs) extracted from fat-abundant donor sites to other areas such as the face, breast, and hip to reconstruct the operative areas into desirable shapes. ADSCs are multipotent stem cells found in adipose tissues, displaying similar differentiation potentials to bone marrow-derived mesenchymal stem cells (BM-MSCs).
Fat transfer, also known as fat graft, lipomodelling, or fat injections, is a surgical process in which a person's own fat is transferred from one area of the body to another area. The major aim of this procedure is to improve or augment the area that has irregularities and grooves. Carried out under either general anesthesia or local anesthesia, the technique involves 3 main stages: fat harvesting, fat processing, fat injection.
References
- ↑ "Secondary sex characteristics". .hu-berlin.de. Retrieved 2011-10-31.
- ↑ Gunther Göretzlehner; Christian Lauritzen; Thomas Römer; Winfried Rossmanith (1 January 2012). Praktische Hormontherapie in der Gynäkologie. Walter de Gruyter. pp. 385–. ISBN 978-3-11-024568-4.
- ↑ R.E. Mansel; Oystein Fodstad; Wen G. Jiang (14 June 2007). Metastasis of Breast Cancer. Springer Science & Business Media. pp. 217–. ISBN 978-1-4020-5866-0.
- ↑ Hartmann BW, Laml T, Kirchengast S, Albrecht AE, Huber JC (1998). "Hormonal breast augmentation: prognostic relevance of insulin-like growth factor-I". Gynecol. Endocrinol. 12 (2): 123–7. doi:10.3109/09513599809024960. PMID 9610425.
- ↑ Katch, VL; Campaigne, B; Freedson, P; Sady, S; Katch, FI; Behnke, AR (July 1980). "Contribution of breast volume and weight to body fat distribution in females" (PDF). Am. J. Phys. Anthropol. 53 (1): 93–100. doi:10.1002/ajpa.1330530113. hdl: 2027.42/37602 . PMID 7416252.
- ↑ Small, KS; Hedman, AK; Grundberg, E; et al. (June 2011). "Identification of an imprinted master trans regulator at the KLF14 locus related to multiple metabolic phenotypes". Nat. Genet. 43 (6): 561–4. doi:10.1038/ng.833. PMC 3192952 . PMID 21572415.
- ↑ Schlenz, Ingrid; Kaider, Alexandra (2007). "The Brava External Tissue Expander: Is Breast Enlargement without Surgery a Reality?". Plastic and Reconstructive Surgery. 120 (6): 1680–1689. doi:10.1097/01.prs.0000267637.43207.19. ISSN 0032-1052. PMID 18040206. S2CID 45740913.