keyword
MENU ▼
Read by QxMD icon Read
search

Sex reversal

keyword
https://www.readbyqxmd.com/read/29155986/prenatal-high-estradiol-exposure-induces-sex-specific-and-dietarily-reversible-insulin-resistance-through-decreased-hypothalamic-insr
#1
Hui-Hui Wang, Cheng-Liang Zhou, Min Lv, Qian Yang, Ju-Xue Li, Min Hou, Jing Lin, Xin-Mei Liu, Yan-Ting Wu, Jian-Zhong Sheng, He-Feng Huang
Adverse intrauterine environment may induce adult disease in offspring, but the mechanisms are not well understood. It is reported that fresh embryo transfer (ET) in assisted reproductive technology presents extra-high maternal estradiol (E2) and prenatal high E2 exposure increases the risk of organ disorders in later life. We found male newborns and children of fresh ET showed increased fasting insulin and the homeostasis model of assessment for insulin resistance index (HOMA-IR). Prenatal high E2 exposed (HE) male mice grew heavier than control and developed insulin resistance, they also showed increased food intake with enhanced orexigenic hypothalamic neuropeptide Y (NPY) expression...
November 15, 2017: Endocrinology
https://www.readbyqxmd.com/read/29155896/progesterone-impairs-antigen-non-specific-immune-protection-by-cd8-t-memory-cells-via-interferon-%C3%AE-gene-hypermethylation
#2
Yushi Yao, Hui Li, Jie Ding, Yixin Xia, Lei Wang
Pregnant women and animals have increased susceptibility to a variety of intracellular pathogens including Listeria monocytogenes (LM), which has been associated with significantly increased level of sex hormones such as progesterone. CD8 T memory(Tm) cell-mediated antigen-non-specific IFN-γ responses are critically required in the host defense against LM. However, whether and how increased progesterone during pregnancy modulates CD8 Tm cell-mediated antigen-non-specific IFN-γ production and immune protection against LM remain poorly understood...
November 20, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/29155330/expression-pattern-and-functional-analysis-of-r-spondin1-in-tongue-sole-cynoglossus-semilaevis
#3
Jinxiang Liu, Tiantian Liu, Jingjing Niu, Xiaolong Wu, Jieming Zhai, Quanqi Zhang, Jie Qi
R-spondin 1 (Rspo1) is a potential female-determining gene in mammals that could regulate the Wnt/β-catenin signaling pathway. The deletion of Rspo1 causes sex reversal in females. To investigate sexual determination and differentiation, we cloned and analyzed the Rspo1 gene in Cynoglossus semilaevis. Phylogenetic and gene structure analyses revealed that Rspo1 gene exhibited high sequence conservation and contained an N-terminal signal peptide, two furin-like cysteine-rich domains (FU1 and FU2), a thrombospondin type 1 repeat, and a C-terminal region enriched with basic charged amino acids...
November 16, 2017: Gene
https://www.readbyqxmd.com/read/29154784/tgf-%C3%AE-1-signaling-regulates-mouse-hepatic-stellate-cell-differentiation-via-the-jagged1-notch-pathway
#4
Yasen Aimaiti, Xin Jin, Wei Wang, Zixin Chen, Dewei Li
AIMS: We tested whether transforming growth factor β1 (TGF-β1) signaling plays an important role in hepatic stellate cell differentiation fate and investigated the role of Jagged1/Notch in this process. MATERIALS AND METHODS: TGF-β1 was overexpressed and transforming growth factor receptor 1 (TGF-β-R1) was knocked down by a lentiviral vector in mouse hepatic stellate cells (mHSCs). Transfection efficiency was assessed with immunofluorescence, quantitative reverse-transcriptase polymerase chain reaction (qRT-PCR) and western blotting...
November 14, 2017: Life Sciences
https://www.readbyqxmd.com/read/29151191/silica-nanoparticle-exposure-inducing-granulosa-cell-apoptosis-and-follicular-atresia-in-female-balb-c-mice
#5
Jianhui Liu, Man Yang, Li Jing, Lihua Ren, Jialiu Wei, Jin Zhang, Feng Zhang, Junchao Duan, Xianqing Zhou, Zhiwei Sun
Given that the effects of ultrafine fractions (< 0.1 μm) on reproductive diseases are gaining attention, this study aimed to explore the influence of silica nanoparticle (SiNP)-induced female reproductive dysfunction. In this study, 80 female mice were randomly divided into four groups including a control group and three concentrations of SiNP groups (7, 21, 35 mg/kg). Mice were exposed to the vehicle control and silica nanoparticles by tracheal perfusion every 3 days a total of five times in 15 days...
November 19, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29151085/a-novel-mutation-in-the-critical-p-box-residue-of-steroidogenic-factor-1-presenting-with-xy-sex-reversal-and-transient-adrenal-failure
#6
Anna S Orekhova, Natalia Kalinchenko, Ivan A Morozov, Evgeny V Vasilyev, Petr M Rubtsov, Ivan I Dedov, Anatoly Tiulpakov
BACKGROUND: Although the importance of steroidogenic factor-1 (SF1, NR5A1) for adrenal development is supported by numerous in vitro and in vivo studies, cases of SF1 deficiency associated with adrenal failure are exceptionally rare. The first human NR5A1 mutation was a heterozygous de novo p.G35E variant identified in a patient with disorder of sex development (DSD) 46,XY and primary adrenal insufficiency. Here we describe another association of the "classic" SF1 phenotype with a novel NR5A1 mutation affecting G35 residue...
November 17, 2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/29145650/loss-of-p300-and-cbp-disrupts-histone-acetylation-at-the-mouse-sry-promoter-and-causes-xy-gonadal-sex-reversal
#7
Gwenn-Aël Carré, Pam Siggers, Marilena Xipolita, Paul Brindle, Beat Lutz, Sara Wells, Andy Greenfield
CREB-binding protein (CBP, CREBBP, KAT3A) and its closely related paralogue p300 (EP300, KAT3B), together termed p300/CBP, are histone/lysine acetyl-transferases that control gene expression by modifying chromatin-associated proteins. Here, we report roles for both of these chromatin-modifying enzymes in mouse sex determination, the process by which the embryonic gonad develops into a testis or an ovary. By targeting gene ablation to embryonic gonadal somatic cells using an inducible Cre line, we show that gonads lacking either gene exhibit major abnormalities of XY gonad development at 14...
November 14, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/29143967/thirteen-week-toxicity-study-of-dietary-l-tryptophan-in-rats-with-a-recovery-period-of-5%C3%A2-weeks
#8
Yusuke Shibui, Hideki Matsumoto, Yoko Masuzawa, Takumi Ohishi, Tsutomu Fukuwatari, Katsumi Shibata, Ryosei Sakai
Although l-tryptophan is nutritionally important and widely used in medical applications, toxicity data for its oral administration are limited. The purpose of this study was to evaluate the potential toxicity of an experimental diet containing added l-tryptophan at doses of 0 (basal diet), 1.25%, 2.5% and 5.0% when administered to Sprague-Dawley rats for 13 weeks. There were no toxicological changes in clinical signs, ophthalmology, urinalysis, hematology, necropsy, organ weight and histopathology between control rats and those fed additional l-tryptophan...
November 16, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/29142409/reversible-testicular-toxicity-of-piperine-on-male-albino-rats
#9
Gopichand Chinta, Mohane Selvaraj Coumar, Latha Periyasamy
Background: Piperine was widely used in traditional medicine for inducing sterility and abortion. Objective: To evaluate the effect of the piperine on testis of male albino rats. Materials and Methods: Adult male rats were divided into four groups (n = 12). Group I (control): Rats were given vehicle p.o. i.e. 0.5% carboxymethyl cellulose in normal saline daily for 60 days, Group II (ED): Rats received piperine at a dose of 10 mg/kg body weight (b...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29138809/microrna-expression-profiles-in-non%C3%A2-epithelial-ovarian-tumors
#10
Roger K Chang, Xidan Li, Ninni Mu, Olga Hrydziuszko, Beatriz Garcia-Majano, Catharina Larsson, Weng-Onn Lui
Ovarian germ cell tumors (OGCTs) and sex cord stromal tumors (SCSTs) are rare gynecologic tumors that are derived from germ and stromal cells, respectively. Unlike their epithelial counterparts, molecular pathogenesis of these tumor types is still poorly understood. Here, we characterized microRNA (miRNA) expression profiles of 9 OGCTs (2 malignant and 7 benign) and 3 SCSTs using small RNA sequencing. We observed significant miRNA expression variations among the three tumor groups. To further demonstrate the biological relevance of our findings, we selected 12 miRNAs for validation in an extended cohort of 16 OGCTs (9 benign and 7 malignant) and 7 SCSTs by reverse transcription-quantitative polymerase chain reaction...
November 10, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/29136116/prenatal-stress-glucocorticoids-and-developmental-programming-of-the-stress-response
#11
Patrick O McGowan, Stephen G Matthews
The early environment has a major impact on the developing embryo, fetus and infant. Parental adversity (maternal and paternal) and glucocorticoid exposure prior to conception and during pregnancy have profound effects on the development and subsequent function of the hypothalamic-pituitary-adrenal (HPA) axis and related behaviours. These effects are species-, sex- and age-specific, and depend on the timing and duration of exposure. The impact of these early exposures can extend across multiple generations, via both the maternal and paternal lineage, and recent studies have begun to determine the mechanisms by which this occurs...
November 10, 2017: Endocrinology
https://www.readbyqxmd.com/read/29135907/efavirenz-therapeutic-range-in-hiv-1-treatment-naive-participants
#12
Cindy J Bednasz, Charles S Venuto, Qing Ma, Eric S Daar, Paul E Sax, Margaret A Fischl, Ann C Collier, Kimberly Y Smith, Camlin Tierney, Yang Yang, Gregory E Wilding, Gene D Morse
BACKGROUND: Efavirenz is currently suggested as an alternative to recommended antiretroviral (ARV) regimens by the Department of Health and Human Services for the treatment of HIV-1 in ARV-naive patients. A mid-dosing interval therapeutic range between 1000 and 4000 ng/mL for efavirenz has been proposed in the literature, with patients more likely to experience virologic failure below this range and adverse effects above. The current study reports an analysis of virologic outcome between those above, below, or within the reported efavirenz therapeutic range (1000-4000 ng/mL) and within subgroups...
December 2017: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/29133521/circulating-total-bilirubin-and-future-risk-of-hypertension-in-the-general-population-the-prevention-of-renal-and-vascular-end-stage-disease-prevend-prospective-study-and-a-mendelian-randomization-approach
#13
Setor K Kunutsor, Lyanne M Kieneker, Stephen Burgess, Stephan J L Bakker, Robin P F Dullaart
BACKGROUND: Circulating total bilirubin is known to be inversely and independently associated with future risk of cardiovascular disease. However, the relationship of circulating total bilirubin with incident hypertension is uncertain. We aimed to assess the association of total bilirubin with future hypertension risk and supplemented this with a Mendelian randomization approach to investigate any causal relevance to the association. METHODS AND RESULTS: Plasma total bilirubin levels were measured at baseline in the PREVEND (Prevention of Renal and Vascular End-Stage Disease) prospective study of 3989 men and women without hypertension...
November 13, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29128646/hiv-drug-resistance-following-a-decade-of-free-antiretroviral-therapy-program-in-india-a-review
#14
REVIEW
Santosh Karade, Devidas N Chaturbhuj, Sourav Sen, Rajneesh K Joshi, Smita S Kulkarni, Subramanian Shankar, Raman R Gangakhedkar
OBJECTIVE: The objective of this review is to assess the burden of HIV drug resistance mutations (DRM) in Indian adults exposed to first-line ART as per national guidelines. METHODS: We performed advanced search for the published literature on HIV drug resistance in India in PubMed and Scopus. From each publication data pertaining to age, sex, CD4 count and viral load, prevalence of NRTI/NNRTI drug resistance mutations (DRM) was extracted. Year-wise Indian HIV-1 reverse transcriptase (RT) sequences were retrieved from Los Alamos HIV database and mutation analyses were performed...
November 8, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/29127312/progesterone-attenuates-temporomandibular-joint-inflammation-through-inhibition-of-nf-%C3%AE%C2%BAb-pathway-in-ovariectomized-rats
#15
Xin-Tong Xue, Xiao-Xing Kou, Chen-Shuang Li, Rui-Yun Bi, Zhen Meng, Xue-Dong Wang, Yan-Heng Zhou, Ye-Hua Gan
Sex hormones may contribute to the symptomatology of female-predominant temporomandibular disorders (TMDs) inflammatory pain. Pregnant women show less symptoms of TMDs than that of non-pregnant women. Whether progesterone (P4), one of the dominant sex hormones that regulates multiple biological functions, is involved in symptoms of TMDs remains to be explored. Freund's complete adjuvant were used to induce joint inflammation. We evaluated the behavior-related and histologic effects of P4 and the expression of tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6 in the synovial membrane...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29124404/pediatric-patients-receiving-naloxone-within-48%C3%A2-h-of-anesthesia-a-case-control-study
#16
Vinay K Donempudi, Juraj Sprung, Toby N Weingarten
PURPOSE: Excessive narcotization in pediatric surgical patients has not been well characterized. This report describes the use of postoperative naloxone in pediatric patients. METHODS: Pediatric surgical patients from January 1, 2010, through June 30, 2016, who underwent general anesthesia and received naloxone within 48 h postoperatively were identified and matched 1:1 with controls by age, sex, and procedure. Cases and controls underwent retrospective chart review...
November 9, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/29123412/lncrna-meg3-enhances-cisplatin-sensitivity-in-non-small-cell-lung-cancer-by-regulating-mir-21-5p-sox7-axis
#17
Pei Wang, Dong Chen, Hongbing Ma, Yong Li
Background: Long noncoding RNAs (lncRNAs) have been revealed to play essential role in drug resistance of multiple cancers. LncRNA MEG3 was previously reported to be associated with cisplatin (DDP) resistance in non-small cell lung cancer (NSCLC) cells. However, the molecular mechanism of MEG3 affecting DDP resistance in NSCLC remains to be further illustrated. In this study, we attempted to discuss whether MEG3 also could function as a competing endogenous RNA to regulate DDP resistance in NSCLC...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29122571/360%C3%A2-operative-videos-a-randomised-cross-over-study-evaluating-attentiveness-and-information-retention
#18
Cuan M Harrington, Dara O Kavanagh, Gemma Wright Ballester, Athena Wright Ballester, Patrick Dicker, Oscar Traynor, Arnold Hill, Sean Tierney
OBJECTIVE: Although two-dimensional (2D) and three-dimensional videos have traditionally provided foundations for reviewing operative procedures, the recent 360º format may provide new dimensions to surgical education. This study sought to describe the production of a high quality 360º video for an index-operation (augmented with educational material), while evaluating for variances in attentiveness, information retention, and appraisal compared to 2D. DESIGN: A 6-camera synchronised array (GoPro Omni, [California, United States]) was suspended inverted and recorded an elective laparoscopic cholecystectomy in 2016...
November 6, 2017: Journal of Surgical Education
https://www.readbyqxmd.com/read/29118296/mismatch-between-fetal-sexing-and-birth-phenotype-a%C3%A2-case-of-complete-androgen-insensitivity-syndrome
#19
Keisuke Yoshii, Yasuhiro Naiki, Yumiko Terada, Maki Fukami, Reiko Horikawa
With advancing maternal age, the number of prenatal genetic tests is increasing in many countries. Prenatal genetic tests, such as amniocentesis, chorionic villus sampling and non-invasive prenatal testing, can disclose fetal chromosomal sex, although these tests were originally designed to prenatally diagnose chromosomal aneuploidies, such as trisomy 21, 18 and 13. Complete androgen insensitivity syndrome (CAIS) is an X-linked recessive disorder caused by an androgen receptor dysfunction leading to hormone resistance...
November 9, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/29114041/phospholipase-a2-receptor-1-epitope-spreading-at-baseline-predicts-reduced-likelihood-of-remission-of-membranous-nephropathy
#20
Barbara Seitz-Polski, Hanna Debiec, Alexandra Rousseau, Karine Dahan, Christelle Zaghrini, Christine Payré, Vincent L M Esnault, Gérard Lambeau, Pierre Ronco
The phospholipase A2 receptor (PLA2R1) is the major autoantigen in primary membranous nephropathy. Several PLA2R1 epitopes have been characterized, and a retrospective study identified PLA2R1 epitope spreading as a potential indicator of poor prognosis. Here, we analyzed the predictive value of anti-PLA2R1 antibody (PLA2R1-Ab) titers and epitope spreading in a prospective cohort of 58 patients positive for PLA2R1-Ab randomly allocated to rituximab (n=29) or antiproteinuric therapy alone (n=29). At baseline, the epitope profile (CysR, CysRC1, CysRC7, or CysRC1C7) did not correlate with age, sex, time from diagnosis, proteinuria, or serum albumin, but epitope spreading strongly correlated with PLA2R1-Ab titer (P<0...
November 7, 2017: Journal of the American Society of Nephrology: JASN
keyword
keyword
35907
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"