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1.
Gen Comp Endocrinol ; 292: 113438, 2020 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-32060003

RESUMO

Food deprivation or restriction causes animals to mount a stereotypical behavioral and physiological response that involves overall increases in activity, elevated glucocorticoid production, and (often) inhibition of the reproductive system. Although there is increasing evidence that these responses can differ in their degree or covariation between the sexes, most studies to-date on food restriction/deprivation have focused on male songbirds. We therefore aimed to characterize the behavioral, physiological, and neuroendocrine response to acute food deprivation in a female songbird using a nomadic species, the zebra finch. We quantified behavior during a 6.5 h food deprivation and then measured physiological and neuroendocrine responses of female birds at the 6.5 h timepoint. Within 1 h of acute food deprivation, female zebra finches increased foraging behaviors, and after 6.5 h of food deprivation, females lost 5% of their body mass, on average. Change in body mass was positively associated with elevated corticosterone and (contrary to findings in male zebra finches) negatively related to the number of gonadotropin inhibitory hormone-immunoreactive cells in the hypothalamus. However, there was no effect of food deprivation on corticotropin releasing hormone-immunoreactive cells in the hypothalamus. There was also no relationship between corticotropin releasing hormone-immunoreactive cell number and circulating corticosterone. Our results are consistent with the hypothesis that neuroendocrine responses to food deprivation differ between male and female songbirds. Future studies should work to incorporate sex comparisons to evaluate sex-specific neuroendocrine responses to acute stress.


Assuntos
Hormônio Liberador da Corticotropina/metabolismo , Tentilhões/fisiologia , Alimentos , Hormônios Hipotalâmicos/metabolismo , Hipotálamo/metabolismo , Animais , Contagem de Células , Feminino , Privação de Alimentos , Masculino , Fenótipo
2.
Biol Reprod ; 101(5): 906-915, 2019 11 21.
Artigo em Inglês | MEDLINE | ID: mdl-31359037

RESUMO

Successful implantation requires complex signaling between the uterine endometrium and the blastocyst. Prior to the blastocyst reaching the uterus, the endometrium is remodeled by sex steroids and other signals to render the endometrium receptive. In vitro models have facilitated major advances in our understanding of endometrium preparation and endometrial-blastocyst communication in mice and humans, but these systems have not been widely adapted for use in other models which might generate a deeper understanding of these processes. The objective of our study was to use a recently developed, three-dimensional culture system to identify specific roles of female sex steroids in remodeling the organization and function of feline endometrial cells. We treated endometrial cells with physiologically relevant concentrations of estradiol and progesterone, either in isolation or in combination, for 1 week. We then examined size and density of three-dimensional structures, and quantified expression of candidate genes known to vary in response to sex steroid treatments and that have functional relevance to the decidualization process. Combined sex steroid treatments recapitulated organizational patterns seen in vivo; however, sex steroid manipulations did not induce expected changes to expression of decidualization-related genes. Our results demonstrate that sex steroids may not be sufficient for complete decidualization and preparation of the feline endometrium, thereby highlighting key areas of opportunity for further study and suggesting some unique functions of felid uterine tissues.


Assuntos
Gatos , Técnicas de Cultura de Células/veterinária , Endométrio/citologia , Estradiol/farmacologia , Progesterona/farmacologia , Animais , Decídua/fisiologia , Estrogênios/farmacologia , Feminino , Regulação da Expressão Gênica/efeitos dos fármacos , Regulação da Expressão Gênica/fisiologia , Progestinas/farmacologia
3.
Sci China Life Sci ; 67(5): 1061-1068, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38418758

RESUMO

Although transvaginal mesh (TVM) repair is no longer used in some countries, long-term outcomes after TVM surgery are of great importance globally. However, reports with follow-up >10 years are limited. Thus, this study aimed to report outcomes in a prospective cohort with at least 10 years of follow-up. Women with stage III-IV symptomatic prolapse were approached consecutively from 2008 to 2013 at one tertiary hospital. The main outcome measure was symptomatic failure. Secondary outcomes included anatomic failure, recurrence, patient satisfaction, complications, and reoperation. The Kaplan-Meier curve was used to estimate the cumulative failure rate. Of the 121 patients enrolled in the study, 103 (85.1%) completed a median follow-up of 11 years. The estimated probability rates of symptomatic and anatomic failure were 17.6% and 8.8% in 11 years, respectively. The estimated incidence of symptomatic failure increased by 8.2% between 5 and 11 years; however, the corresponding rate for anatomic failure was 3.7%. The most common complication was vaginal mesh exposure, and its estimated probability increased from 19.3% to 28.4% from 5 to 11 years, respectively. Office trimming resolved 80.0% of vaginal exposures. These patients did not report decreased overall satisfaction. Patients with vaginal mesh exposure requiring>3 office procedures or mesh removal in the operating room (5.8% by 11 years) had lower satisfaction rates (P<0.01) and were defined as having severe mesh exposure. The rates of postoperative pain, reoperation, and Patient Global Impression of Improvement ⩾2 were 2.5%, 3.3%, and 94.2%, respectively. The results of this study implied that TVM treatment gradually increased the symptomatic failure rate but provided durable anatomical support of the vaginal wall. Vaginal mesh exposure was common in women who were largely not sexually active; however, 80% of the cases could be managed in the outpatient clinic, which did not affect patient satisfaction.


Assuntos
Prolapso de Órgão Pélvico , Reoperação , Telas Cirúrgicas , Humanos , Feminino , Telas Cirúrgicas/efeitos adversos , Seguimentos , Pessoa de Meia-Idade , Idoso , Resultado do Tratamento , Prolapso de Órgão Pélvico/cirurgia , Reoperação/estatística & dados numéricos , Estudos Prospectivos , Satisfação do Paciente , Vagina/cirurgia , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Estimativa de Kaplan-Meier , Recidiva , Estudos de Coortes
4.
Front Med ; 16(6): 859-872, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36562950

RESUMO

This review presents an update of Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome on its etiologic, clinical, diagnostic, psychological, therapeutic, and reproductive aspects. The etiology of MRKH syndrome remains unclear due to its intrinsic heterogeneity. Nongenetic and genetic causes that may interact during the embryonic development have been proposed with no definitive etiopathogenesis identified. The proportion of concomitant extragenital malformations varies in different studies, and the discrepancies may be explained by ethnic differences. In addition to physical examination and pelvic ultrasound, the performance of pelvic magnetic resonance imaging is crucial in detecting the presence of rudimentary uterine endometrium. MRKH syndrome has long-lasting psychological effects on patients, resulting in low esteem, poor coping strategies, depression, and anxiety symptoms. Providing psychological counseling and peer support to diagnosed patients is recommended. Proper and timely psychological intervention could significantly improve a patient's outcome. Various nonsurgical and surgical methods have been suggested for treatment of MRKH syndrome. Due to the high success rate and minimal risk of complications, vaginal dilation has been proven to be the first-line therapy. Vaginoplasty is the second-line option for patients experiencing dilation failure. Uterine transplantation and gestational surrogacy are options for women with MRKH syndrome to achieve biological motherhood.


Assuntos
Transtornos 46, XX do Desenvolvimento Sexual , Anormalidades Urogenitais , Humanos , Feminino , Transtornos 46, XX do Desenvolvimento Sexual/terapia , Transtornos 46, XX do Desenvolvimento Sexual/diagnóstico , Transtornos 46, XX do Desenvolvimento Sexual/genética , Ductos Paramesonéfricos/anormalidades , Ductos Paramesonéfricos/cirurgia , Vagina/diagnóstico por imagem , Vagina/anormalidades , Vagina/cirurgia
5.
J Pediatr Adolesc Gynecol ; 35(3): 396-399, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-34742937

RESUMO

BACKGROUND: Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome, as congenital anomaly of the female reproductive tract, is characterized by the congenital absence of uterus and vagina. Dilation maneuver was recommended as the nonsurgical treatment for these patients. However, only several cases were reported depicting the prolapse of the dilated neovagina of patients with MRKH syndrome. CASE: We report our own experiences in treating 2 patients with neovaginal prolapse MRKH syndrome receiving ischial spinous fascia fixation (ISFF) and reviewed neovaginal prolapse occurrence in MRKH syndrome. In our approach to evaluating the anatomic and functional outcome after operation, we compared the prolapse stage with Pelvic Organ Prolapse Quantification score and analyzed sexual activities by the standardized Female Sexual Function Index1 (FSFI) and Modified Body Image Scale2 (MBIS). SUMMARY AND CONCLUSION: Both subjective and objective improvement were observed in these 2 patients.


Assuntos
Transtornos 46, XX do Desenvolvimento Sexual , Anormalidades Congênitas , Prolapso de Órgão Pélvico , Transtornos 46, XX do Desenvolvimento Sexual/complicações , Transtornos 46, XX do Desenvolvimento Sexual/cirurgia , Anormalidades Congênitas/cirurgia , Fáscia , Feminino , Humanos , Ductos Paramesonéfricos/anormalidades , Ductos Paramesonéfricos/cirurgia , Prolapso de Órgão Pélvico/complicações , Prolapso de Órgão Pélvico/cirurgia , Vagina/anormalidades , Vagina/cirurgia
6.
J Evid Based Med ; 15(2): 97-105, 2022 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-35762517

RESUMO

OBJECTIVE: This study aimed to compare the accuracy of QuantiFERON-TB Gold Plus (QFT-Plus) and T-SPOT.TB for diagnosing active tuberculosis (ATB) in febrile patients, to explore influencing factors of positive results and to verify the potential value of QFT-Plus in the identification of ATB and latent tuberculosis infection (LTBI). METHODS: A total of 240 febrile patients with ATB (n = 80) and non-ATB (n = 160) were recruited to assess the accuracy of QFT-Plus and T-SPOT.TB for diagnosing ATB. Multivariable logistic regression was used to analyze the influencing factors of positive results. RESULTS: The proportion of indeterminate results (ITRS) in QFT-Plus and T-SPOT.TB were 3.3% and 0%, respectively. The consistency between the results of the QFT-Plus and T-SPOT.TB was substantial. The area under the receiver operating characteristic curve (AUROC) of the QFT-Plus and T-SPOT.TB for diagnosing ATB was 0.792 and 0.849 (p = 0.070), respectively. The sensitivity of differentiating ATB from non-ATB was 92.2% in QFT-Plus versus 95.0% in T-SPOT.TB. The influencing factors of T-SPOT.TB positive result were male (odds ratio (OR) = 2.33, 95% confidence interval (CI) 1.27-4.26, p = 0.006), evidence of previous TB (OR 11.36, 95% CI 4.62-27.94, p < 0.001), while male (OR = 3.17, 95% CI 1.73-5.84, p < 0.001), evidence of previous TB (OR = 7.58, 95% CI 3.60-15.98, p <0.001), and use of immunosuppressant (OR = 0.49, 95% CI 0.260.94, p = 0.030) were influencing factors for QFT-Plus positive result. There was no significant difference in QFT-Plus in differentiating ATB from LTBI in febrile patients. CONCLUSION: There was no significant difference between QFT-Plus and T-SPOT.TB for diagnosing ATB in febrile patients. QFT-Plus is prone to ITRS. The influencing factors including males, evidence of the previous TB, and use of immunosuppressant should be considered when interpreting positive results.


Assuntos
Tuberculose Latente , Tuberculose , Feminino , Febre , Humanos , Imunossupressores , Testes de Liberação de Interferon-gama/métodos , Tuberculose Latente/diagnóstico , Modelos Logísticos , Masculino , Tuberculose/diagnóstico
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