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This article presents current perspectives on the gender approach to the study of migration in Chile between 1990 and 2018, contextualizing it in light of international debates in the social sciences. We will discuss how the feminization and the growth of Latin American migrations have given rise to a prolific field of research, as exemplified by studies conducted in central and northern Chile. We will show how the concepts of social remittances and caregiving permeate the Chilean debate on migrant women. We conclude with reflections on topics and perspectives to be incorporated into the Chilean research agenda on gender and migration. KEYWORDS | Care; Chile; gender; migration; social remittances Se presenta un estado del arte sobre el enfoque de género en los estudios de la migración en Chile entre 1990 y 2018, contextualizándolo a la luz de debates internacionales de las ciencias sociales. Abordaremos cómo la feminización y el incremento de las migraciones latinoamericanas inauguran un prolijo campo de investigaciones, articulado a través de estudios desarrollados en el centro y en el norte de Chile. Señalaremos cómo los conceptos de remesas sociales y cuidados permean el debate chileno sobre las mujeres migrantes. Finalizamos con reflexiones sobre temas y perspectivas a ser incorporados en la agenda chilena de investigaciones sobre género y migración. PALABRAS CLAVE | Chile; cuidados; género; migración; remesas sociales Apresenta-se um estado da arte sobre a abordagem de gênero nos estudos da migração no Chile entre 1990 e 2018, contextualizando-o à luz de debates internacionais das ciências sociais. Abordaremos como a feminização e o aumento das migrações latino-americanas inauguram um amplo campo de pesquisas, articulado por meio de estudos desenvolvidos no centro e no norte do Chile. Indicamos como os conceitos de \"fluxos sociais\" e \"cuidados\" permeiam o debate chileno sobre as mulheres migrantes. Finalizamos com reflexões sobre temas e perspectivas a serem incorporados na agenda chilena de pesquisas sobre gênero e migração. PALAVRAS-CHAVE | Chile; cuidados; fluxos sociais; género; migração

The herbicide atrazine is one of the most commonly applied pesticides in the world. As a result, atrazine is the most commonly detected pesticide contaminant of ground, surface, and drinking water. Atrazine is also a potent endocrine disruptor that is active at low, ecologically relevant concentrations. Previous studies showed that atrazine adversely affects amphibian larval development. The present study demonstrates the reproductive consequences of atrazine exposure in adult amphibians. Atrazine-exposed males were both demasculinized (chemically castrated) and completely feminized as adults. Ten percent of the exposed genetic males developed into functional females that copulated with unexposed males and produced viable eggs. Atrazine-exposed males suffered from depressed testosterone, decreased breeding gland size, demasculinized/feminized laryngeal development, suppressed mating behavior, reduced spermatogenesis, and decreased fertility. These data are consistent with effects of atrazine observed in other vertebrate classes. The present findings exemplify the role that atrazine and other endocrine-disrupting pesticides likely play in global amphibian declines.

Under aquaculture conditions, Japanese eels (Anguilla japonica) produce a high percentage of males. However, females gain higher body weight and have better commercial value than males, and, therefore, a high female ratio is required in eel aquaculture. In this study, we examined the effects of isoflavones, genistein, and daidzein on sex differentiation and sex-specific genes of eels. To investigate the effects of these phytoestrogens on the gonadal sex, we explored the feminizing effects of soy isoflavones, genistein, and daidzein in a dose-dependent manner. The results showed that genistein induced feminization more efficiently than daidzein. To identify the molecular mechanisms of sex-specific genes, we performed a comprehensive expression analysis by quantitative real-time PCR and RNA sequencing. Phenotypic males and females were produced by feeding elvers a normal diet or an estradiol-17β- or genistein-treated diet for 45 days. The results showed that female-specific genes were up-regulated and male-specific genes were down-regulated in the gonads, suggesting that genistein induces feminization by altering the molecular pathways responsible for eel sex differentiation.

The new WHO classification of adrenal cortical proliferations reflects translational advances in the fields of endocrine pathology, oncology and molecular biology. By adopting a question–answer framework, this review highlights advances in knowledge of histological features, ancillary studies, and associated genetic findings that increase the understanding of the adrenal cortex pathologies that are now reflected in the 2022 WHO classification. The pathological correlates of adrenal cortical proliferations include diffuse adrenal cortical hyperplasia, adrenal cortical nodular disease, adrenal cortical adenomas and adrenal cortical carcinomas. Understanding germline susceptibility and the clonal-neoplastic nature of individual adrenal cortical nodules in primary bilateral macronodular adrenal cortical disease, and recognition of the clonal-neoplastic nature of incidentally discovered non-functional subcentimeter benign adrenal cortical nodules has led to redefining the spectrum of adrenal cortical nodular disease. As a consequence, the most significant nomenclature change in the field of adrenal cortical pathology involves the refined classification of adrenal cortical nodular disease which now includes (a) sporadic nodular adrenocortical disease, (b) bilateral micronodular adrenal cortical disease, and (c) bilateral macronodular adrenal cortical disease (formerly known primary bilateral macronodular adrenal cortical hyperplasia). This group of clinicopathological entities are reflected in functional adrenal cortical pathologies. Aldosterone producing cortical lesions can be unifocal or multifocal, and may be bilateral with no imaging-detected nodule(s). Furthermore, not all grossly or radiologically identified adrenal cortical lesions may be the source of aldosterone excess. For this reason, the new WHO classification endorses the nomenclature of the HISTALDO classification which uses CYP11B2 immunohistochemistry to identify functional sites of aldosterone production to help predict the risk of bilateral disease in primary aldosteronism. Adrenal cortical carcinomas are subtyped based on their morphological features to include conventional, oncocytic, myxoid, and sarcomatoid subtypes. Although the classic histopathologic criteria for diagnosing adrenal cortical carcinomas have not changed, the 2022 WHO classification underscores the diagnostic and prognostic impact of angioinvasion (vascular invasion) in these tumors. Microscopic angioinvasion is defined as tumor cells invading through a vessel wall and forming a thrombus/fibrin-tumor complex or intravascular tumor cells admixed with platelet thrombus/fibrin. In addition to well-established Weiss and modified Weiss scoring systems, the new WHO classification also expands on the use of other multiparameter diagnostic algorithms (reticulin algorithm, Lin–Weiss–Bisceglia system, and Helsinki scoring system) to assist the workup of adrenal cortical neoplasms in adults. Accordingly, conventional carcinomas can be assessed using all multiparameter diagnostic schemes, whereas oncocytic neoplasms can be assessed using the Lin–Weiss–Bisceglia system, reticulin algorithm and Helsinki scoring system. Pediatric adrenal cortical neoplasms are assessed using the Wieneke system. Most adult adrenal cortical carcinomas show > 5 mitoses per 10 mm2 and > 5% Ki67. The 2022 WHO classification places an emphasis on an accurate assessment of tumor proliferation rate using both the mitotic count (mitoses per 10 mm2) and Ki67 labeling index which play an essential role in the dynamic risk stratification of affected patients. Low grade carcinomas have mitotic rate of ≤ 20 mitoses per 10 mm2, whereas high-grade carcinomas show > 20 mitoses per 10 mm2. Ki67-based tumor grading has not been endorsed in the new WHO classification, since the proliferation indices are continuous variables rather than being static thresholds in tumor biology. This new WHO classification emphasizes the role of diagnostic and predictive biomarkers in the workup of adrenal cortical neoplasms. Confirmation of the adrenal cortical origin of a tumor remains a critical requirement when dealing with non-functional lesions in the adrenal gland which may be mistaken for a primary adrenal cortical neoplasm. While SF1 is the most reliable biomarker in the confirmation of adrenal cortical origin, paranuclear IGF2 expression is a useful biomarker in the distinction of malignancy in adrenal cortical neoplasms. In addition to adrenal myelolipoma, the new classification of adrenal cortical tumors has introduced new sections including adrenal ectopia, based on the potential role of such ectopic tissue as a possible source of neoplastic proliferations as well as a potential mimicker of metastatic disease. Adrenal cysts are also discussed in the new classification as they may simulate primary cystic adrenal neoplasms or even adrenal cortical carcinomas in the setting of an adrenal pseudocyst.

Breast development is a key feature of feminization and therefore important to transwomen (male-to-female transgender persons). It is not exactly known when breast development starts after initiating cross-sex hormone therapy (CHT) and how much growth may be expected. To investigate breast development in transwomen during their first year of CHT and whether clinical or laboratory parameters predict breast development. This study was performed as part of the European Network for the Investigation of Gender Incongruence, which is a prospective multicenter cohort study. Gender clinics in Amsterdam, Ghent, and Florence. Transwomen who completed the first year of CHT (n = 229). CHT. Breast development in centimeter and cup size. The median age of the included transwomen was 28 years (range, 18 to 69). Mean breast-chest difference increased to 7.9 ± 3.1 cm after 1 year of CHT, mainly resulting in less than an AAA cup size (48.7%). Main breast development occurred in the first 6 months of therapy. Serum estradiol levels did not predict breast development after 1 year of CHT (first quartile, 3.6 cm [95% confidence interval (CI), 2.7 to 4.5], second quartile, 3.2 cm [95% CI, 2.3 to 4.2], third quartile, 4.4 cm [95% CI, 3.5 to 5.3], and fourth quartile, 3.6 cm [95% CI, 2.7 to 4.5]). This study shows that, after 1 year of CHT, breast development is modest and occurs primarily in the first 6 months. No clinical or laboratory parameters were found that predict breast development.

Background: Upper-face feminization is a frequently executed procedure in sexual reassignment surgery, owing to its ability to influence gender identity through adjustments to the hairline, forehead, and peri-orbital area. The procedure includes reducing the hairline, lifting the brows, shaving the orbital region, and applying specific techniques to reduce the frontal bone. This research aims to assess the outcomes, results, and potential complications associated with this surgery among transgender patients. Material and Method: Retrospective review of medical records of 20 patients who attended for facial feminization surgery of the upper face between June 2022 and June 2023, analyzing the previously performed procedures, complications and revision surgery outcomes, and first-time procedures. A literature review was performed for similar studies. Results: 20 patients were included in the study. Among the cohort treated elsewhere (n = 11), the primary complaint was insufficient browbone reduction and anterior frontal sinus table setback. They underwent poorly performed Type 1 reduction when full forehead reconstruction (Type 3/4) was indicated (n = 3), or no reduction was performed during hairline advancement (n = 4). Type 3 forehead reduction with orbital shaving and hairline advancement with simultaneous temporal browlift was most commonly performed in both revision and first-time surgical upper face feminization (n = 15) (75%). Type 1 osteoplasty was performed in four patients (10%), one Type 3 revision surgery was performed after insufficient Type 3 reduction, and one case of shock-induced alopecia was reported, treated with PRP/peptides and a FUE hair graft. Conclusions: The author’s preferred technique, ‘whole-in-one’ upper face feminization by modified bi-coronal incision with frontal trichophytic hyper-beveled incision, provides sufficient insight into the frontal bone and orbital region, the desired forehead osteoplasty and the most efficient insight into the temporal area, enabling safe dissection between fasciae, ligamentous adhesion removal, and periosteal attachment, providing full soft and hard tissue feminization. Nevertheless, feminization procedures should be meticulously planned, and all concerning issues should be addressed during the first surgery in order to prevent revisions, complications, and patient dissatisfaction.

As the critical tissue of the central nervous system, the brain has been found to be involved in gonad development. Previous studies have suggested that gonadal fate may be affected by the brain. Identifying brain-specific molecular changes that occur during estrodiol-17[beta] (E.sub.2) -induced feminization is crucial to our understanding of the molecular control of sex differentiation by the brains of fish. In this study, the differential transcriptomic responses of the Takifugu rubripes larvae brain were compared after E.sub.2 treatment for 55 days. Our results showed that 514 genes were differentially expressed between E.sub.2-treated-XX (E-XX) and Control-XX (C-XX) T. rubripes, while 362 genes were differentially expressed between E.sub.2-treated-XY (E-XY) and Control-XY (C-XY). For example, the expression of cyp19a1b, gnrh1 and pgr was significantly up-regulated, while st, sl, tsh[beta], prl and pit-1, which belong to the growth hormone/prolactin family, were significantly down-regulated after E.sub.2 treatment, in both sexes. The arntl1, bhlbe, nr1d2, per1b, per3, cry1, cipc and ciart genes, which are involved in the circadian rhythm, were also found to be altered. Differentially expressed genes (DEGs), which were identified between E-XX and C-XX, were significantly enriched in neuroactive ligand-receptor interaction, arachidonic acid metabolism, cytokine-cytokine receptor interaction and the calcium signaling pathway. The DEGs that were identified between E-XY and C-XY were significantly enriched in tyrosine metabolism, phenylalanine metabolism, arachidonic acid metabolism and linoleic acid metabolism. A number of genes and pathways were identified in the brain of E.sub.2-treated T. rubripes larvae by RNA-seq. It provided the opportunity for further study on the possible involvement of networks in the brain-pituitary-gonadal axis in sex differentiation in T. rubripes.

Contemporary evidence suggests that masculinity is changing, adopting perceived feminine traits in the process. Implications of this new masculine norm on gender relations remain unclear. Our research aims to better understand the influence of changing masculine norms on men’s endorsement of gender-hierarchy-legitimizing ideologies. Based on Precarious Manhood Theory and Social Role Theory, we conducted two quasi-experimental studies (N = 412) in which we first assessed heterosexual men's motivation to protect traditional masculinity. Then, we informed them that men’s gender norms are becoming more feminine (feminization norm condition) or are remaining masculine in a traditional sense (traditional norm condition). In the third (baseline-control) condition, participants received no information about men’s gender norms. Finally, we assessed the extent to which participants endorsed gender-hierarchy-legitimizing ideologies, namely sexism (Study 1) and masculinist beliefs (Study 2). Results showed that men who were less motivated to protect traditional masculinity were less likely to endorse gender-hierarchy-legitimizing ideologies when exposed to the feminization and control conditions compared to the traditional norm condition. The implications of these findings for gender equality and gender relations are discussed.

Objectives To determine the self-reported quality of life of male-to-female (MTF) transgendered individuals and how this quality of life is influenced by facial feminization and gender reassignment surgery. Methods Facial Feminization Surgery outcomes evaluation survey and the SF-36v2 quality of life survey were administered to male-to-female transgender individuals via the Internet and on paper. A total of 247 MTF participants were enrolled in the study. Results Mental health-related quality of life was statistically diminished (P < 0.05) intransgendered women without surgical intervention compared to the general female population and transwomen who had gender reassignment surgery (GRS), facial feminization surgery (FFS), or both. There was no statistically significant difference in the mental health-related quality of life among transgendered women who had GRS, FFS, or both. Participants who had FFS scored statistically higher (P < 0.01) than those who did not in the FFS outcomes evaluation. Conclusions Transwomen have diminished mental health-related quality of life compared with thegeneral female population. However, surgical treatments (e. g. FFS, GRS, or both) are associated with improved mental healthrelated quality of life.

Atrazine is a potent endocrine disruptor that both chemically castrates and feminizes male amphibians. It depletes androgens in adult frogs and reduces androgen-dependent growth of the larynx in developing male larvae. It also disrupts normal gonadal development and feminizes the gonads of developing males. Gonadal malformations induced by atrazine include hermaphrodites and males with multiple testes [single sex polygonadism (SSP)], and effects occur at concentrations as low as 0.1 ppb (microg/L). Here, we describe the frequencies at which these malformations occur and compare them with morphologies induced by the estrogen, 17beta-estradiol (E2) , and the antiandrogen cyproterone acetate, as a first step in testing the hypothesis that the effects of atrazine are a combination of demasculinization and feminization. The various forms of hermaphroditism did not occur in controls. Nonpigmented ovaries, which occurred at relatively high frequencies in atrazine-treated larvae, were found in four individuals out of more than 400 controls examined (1%). Further, we show that several types of gonadal malformations (SSP and three forms of hermaphroditism) are produced by E2 exposure during gonadal differentiation, whereas a final morphology (nonpigmented ovaries) appears to be the result of chemical castration (disruption of androgen synthesis and/or activity) by atrazine. These experimental findings suggest that atrazine-induced gonadal malformations result from the depletion of androgens and production of estrogens, perhaps subsequent to the induction of aromatase by atrazine, a mechanism established in fish, amphibians, reptiles, and mammals (rodents and humans).