journal
MENU ▼
Read by QxMD icon Read
search

Reproductive Toxicology

journal
https://www.readbyqxmd.com/read/28431985/quercetin-interferes-with-the-fluid-volume-and-receptivity-development-of-the-uterus-in-rats-during-the-peri-implantation-period
#1
Huma Shahzad, Nelli Giribabu, Kamarulzaman Karim, Normadiah Kassim, Sekaran Muniandy, Kilari Eswar Kumar, Naguib Salleh
HYPOTHESIS: quercetin could induce changes to the fluid volume and receptivity development of the uterus during peri-implantation period. METHODS: Female rats were treated with quercetin (10, 25 and 50mg/kg/day) subcutaneously beginning from day-1 pregnancy. Uterus was harvested at day-4 (following three days quercetin treatment) for morphological, ultra-structural, protein and mRNA expressional changes and plasma sex-steroid levels analyses. In another cohort of rats, implantation rate was determined at day-6 (following five days quercetin treatment)...
April 18, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28431984/thyroid-disrupting-pesticides-impair-the-hypothalamic-pituitary-testicular-axis-of-a-wildlife-bird-amandava-amandava
#2
Banalata Mohanty, Surya Prakash Pandey, Kazuyoshi Tsutsui
The effect of two thyroid disrupting pesticides (TDPs) mancozeb (MCZ) and imidacloprid (IMI) on the hypothalamic-pituitary-gonadal/testicular (HPG) axis of a seasonally breeding bird, Amandava amandava has been evaluated. Male birds (n=8/group) were exposed to each of the pesticide (0.25% LD50 of respective pesticide) as well as to their two equimixture doses (0.25% of LD50 of each and 0.5% LD50 of each) through food for 30d during pre-breeding stage of the reproductive cycle. Reduction in weight, volume and other histopathological features revealed testicular regression...
April 18, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28428071/development-of-novel-in-silico-model-for-developmental-toxicity-assessment-by-using-na%C3%A3-ve-bayes-classifier-method
#3
Hui Zhang, Ji-Xia Ren, Yan-Li Kang, Peng Bo, Jun-Yu Liang, Lan Ding, Wei-Bao Kong, Ji Zhang
Toxicological testing associated with developmental toxicity endpoints are very expensive, time consuming and labor intensive. Thus, developing alternative approaches for developmental toxicity testing is an important and urgent task in the drug development filed. In this investigation, the naïve Bayes classifier was applied to develop a novel prediction model for developmental toxicity. The established prediction model was evaluated by the internal 5-fold cross validation and external test set. The overall prediction results for the internal 5-fold cross validation of the training set and external test set were 96...
April 18, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28414088/embryonic-vascular-disruption-adverse-outcomes-linking-high-throughput-signaling-signatures-with-functional-consequences
#4
Robert G Ellis-Hutchings, Raja S Settivari, Alene T McCoy, Nicole Kleinstreuer, Jill Franzosa, Thomas B Knudsen, Edward W Carney
Embryonic vascular disruption is an important adverse outcome pathway (AOP) as chemical disruption of cardiovascular development induces broad prenatal defects. High-throughput screening (HTS) assays aid AOP development although linking in vitro data to in vivo apical endpoints remains challenging. This study evaluated two anti-angiogenic agents, 5HPP-33 and TNP-470, across the ToxCastDB HTS assay platform and anchored the results to complex in vitro functional assays: the rat aortic explant assay (AEA), rat whole embryo culture (WEC), and the zebrafish embryotoxicity (ZET) assay...
April 13, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28410833/boberg-et-al-2011-corrigendum-2016-further-significant-modifications-needed
#5
LETTER
Peter Morfeld, Min Chen, Rainer Otter, Christine Palermo, Jessica Kemmerling, Michela Mastrantonio
No abstract text is available yet for this article.
April 11, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28408308/effect-of-lipopolysaccharide-on-developmental-competence-of-oocytes
#6
Fumie Magata, Takashi Shimizu
In postpartum dairy cows, lipopolysaccharide (LPS) derived from gram-negative bacteria such as Escherichia coli causes uterine inflammation resulting in low fertility. The aim of this study was to determine the effect of LPS on the developmental competence of bovine oocytes in vitro. LPS perturbed the nuclear maturation of bovine oocytes by inhibiting meiotic progression. Although LPS did not affect the copy number of mitochondrial DNA, it decreased mitochondrial membrane potential in matured oocytes. LPS inhibited mitochondrial redistribution throughout the cytoplasm...
April 10, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28400286/increased-oxidative-stress-and-cytokinesis-block-micronucleus-cytome-assay-parameters-in-pregnant-women-with-gestational-diabetes-mellitus-and-gestational-arterial-hypertension
#7
Mina Toljic, Amira Egic, Jelena Munjas, Natasa Karadzov Orlic, Zagorka Milovanovic, Aleksandra Radenkovic, Jovana Vuceljic, Ivana Joksic
We investigated whether gestational diabetes mellitus (GDM) and gestational arterial hypertension (GH) are associated with increased oxidative stress and DNA damage. Study included 3 groups of pregnant women (GDM, GH and control). DNA damage biomarkers (micronuclei MNi, nucleoplasmic bridges NPBs and nuclear buds NBUDs) were assessed by cytokinesis-block micronucleus cytome assay. Oxidative stress levels were evaluated by analyzing malondialdehyde equivalents (TBARS) and 8-hydroxy-2'-deoxyguanosine (8-OHdG)...
April 8, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28392050/rebuttal-to-letter-by-morfeld-et-al-boberg-et-al-2011-corrigendum-2016-further-significant-modifications-needed
#8
LETTER
J Boberg, M Axelstad, S Christiansen, U Hass
No abstract text is available yet for this article.
April 6, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28366586/intramuscularly-administered-herpes-zoster-subunit-vaccine-has-no-effects-on-fertility-pre-and-post-natal-development-in-sprague-dawley-rats
#9
Lawrence Segal, Karen Thacker, Michel Fochesato, Giulia Giordano, Nathalie Garçon, Eric Destexhe
The herpes zoster subunit vaccine (HZ/su) is an investigational vaccine for the prevention of shingles, a disease caused by the varicella zoster virus (VZV). It is composed of recombinant VZV glycoprotein E (gE) and AS01. We assessed the potential toxic effects of gE/AS01 and AS01 alone on female and male fertility, and on embryo-fetal, pre- and post-natal development in Sprague-Dawley rats. Females were immunized before pairing and during gestation. Half of the pregnant rats were used for embryo-fetal investigations...
March 31, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28341573/quercetin-alters-uterine-fluid-volume-and-aquaporin-aqp-subunits-aqp-1-2-5-7-expression-in-the-uterus-in-the-presence-of-sex-steroids-in-rats
#10
Huma Shahzad, Nelli Giribabu, Kamarulzaman Karim, Sekaran Muniandy, Normadiah M Kassim, Naguib Salleh
Effects of quercetin on uterine fluid volume and aquaporin (AQP) expression in the uterus were investigated. Estradiol (E) or estradiol followed by progesterone (E+P) were given to ovariectomised rats with or without quercetin (10, 50 or 100mg/kg/day) treatment. Uteri were harvested and its inner/outer circumference ratio was determined. AQP-1, 2, 5 and 7 mRNA and protein levels in uterus were quantified by Real-time PCR and Western blotting respectively. Protein distribution was observed by immunohistochemistry...
March 22, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28341570/a-study-of-the-age-related-effects-of-lactational-atrazine-exposure
#11
Yan Sun, Yan-Shu Li, Bai Li, Kun Ma, Bai-Xiang Li
A growing number of reports have demonstrated that the widely-used herbicide Atrazine (ATR) can cause injury to dopamine (DA) neurons, but the exact mechanism remains unclear. In this study, we examined the effects of lactational ATR exposure in Sprague-Dawley rats on dopaminergic neuron health later in life. Compared with control rats, rats exposed to ATR during a critical period of neural development showed decreased striatal DA content and increased rates of DA turnover. The expression of Monoamine oxidase (MAO), which is associated with DA degradation, was up-regulated, and the expression of Vesicular Monoamine Transporter 2 (VMAT2), which is associated with DA transport, was down-regulated...
March 22, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28341572/cell-and-region-specificity-of-aryl-hydrocarbon-receptor-ahr-system-in-the-testis-and-the-epididymis
#12
A Wajda, J Łapczuk, M Grabowska, E Pius-Sadowska, M Słojewski, M Laszczynska, E Urasinska, B Machalinski, M Drozdzik
Aryl hydrocarbon receptor (AhR) plays multiple important functions in adaptive responses. Exposure to AhR ligands may produce an altered metabolic activity controlled by the AhR pathways, and consequently affect drug/toxin responses, hormonal status and cellular homeostasis. This research revealed species-, cell- and region-specific pattern of the AhR system expression in the rat and human testis and epididymis, complementing the existing knowledge, especially within the epididymal segments. The study showed that AhR level in the rat and human epididymis is higher than in the testis...
March 21, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28341571/alterations-in-prostate-morphogenesis-in-male-rat-offspring-after-maternal-exposure-to-di-n-butyl-phthalate-dbp
#13
Talita de Mello Santos, Lívia Teresa Ribeiro da Silveira, Jaqueline Carvalho Rinaldi, Wellerson Rodrigo Scarano, Raquel Fantin Domeniconi
Prostate morphogenesis is regulated by androgens hormones and modulated by morphogenetic proteins such as Bone Morphogenetic Proteins (BMPs). This study aims to investigate the effects on prostate development in male offspring and differentiation after gestational and lactational maternal exposure to Di-n-butyl-phthalate (DBP), an important environmental contamination. Pregnant Wistar rats received 100 or 500mg/kg of DBP (DBP100 and DBP500), by gavage, from gestation day 15 (GD15) until postnatal day 21 (PND21)...
March 21, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28341569/oral-exposure-of-pregnant-rats-to-toxic-doses-of-methylmercury-alters-fetal-accumulation
#14
Cláudia Oliveira, Lucy Joshee, Hannah George, Sanya Nijhara, Christy Bridges
Methylmercury (CH3Hg(+)) is an environmental toxicant that may lead to significant pathologies in exposed individuals. The current study assessed the disposition and toxicological effects of 2.5 or 7.5mgkg(-1) CH3Hg(+), conjugated to cysteine (Cys; Cys-S-CH3Hg) and administered orally to pregnant and non-pregnant Wistar and TR(-) rats. Rats were euthanized on gestational day 20 and the content of mercury in each fetus, amniotic sac, and placenta was determined. The brain, liver, and kidneys were removed from each fetus for estimation of mercury content...
March 21, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28314564/hydroxylated-polychlorinated-biphenyl-metabolites-oh-pcbs-maternal-smoking-and-size-at-birth
#15
Katrina Kezios, Yiwei Gu, Xinhua Liu, Piera Cirillo, Darcy Tarrant, Myrto Petreas, Jun-Soo Park, Barbara Cohn, Pam Factor-Litvak
In a sample of 442 births from the Child Health and Development Studies cohort, we examined associations between maternal prenatal exposure to hydroxylated polychlorinated biphenyl metabolites (OH-PCBs) and pregnancy outcomes, and whether associations were mediated by maternal thyroid hormone levels and/or modified by maternal smoking. Compared to nonsmokers, smokers had twice the mean concentration of 4-OH-CB107 (p<0.001) and lower levels of its parent compound, PCB118 (p=0.001). Among mothers who smoked, the birth weight of newborns with maternal concentrations of 4-OH-CB107 in the upper quartile was 316g lighter (95% confidence interval (CI) 566, 65) compared to those with maternal concentrations in the lowest quartile, after control for PCB118 and other potential confounders...
March 14, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28288811/changes-in-the-total-effective-xenoestrogen-burden-texb-of-breast-cancer-patients-during-an-18-month-post-surgical-follow-up
#16
Mariana F Fernandez, Jose Pumarega, Miquel Porta, Jose Manuel Molina-Molina, Juan P Arrebola, Nicolas Olea
We aimed to assess changes in the total effective xenoestrogen burden (TEXB) -a biomarker of combined effect of mixtures of xenoestrogens- in breast cancer patients at surgery (breast adipose tissue) and at different time points during an 18-month follow-up (abdominal adipose tissue), and to analyze the potential influence of socio-demographic, reproductive, tumor, and treatment characteristics on TEXB levels. TEXB-alpha (due to persistent organohalogenated chemicals) and TEXB-beta (due mainly to endogenous estrogens) were quantified in 44 women...
March 10, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28286266/diabetes-induced-effects-on-cardiomyocytes-in-chick-embryonic-heart-micromass-and-mouse-embryonic-d3-differentiated-stem-cells
#17
Omar J Mohammed, Muhammad Liaque Latif, Margaret K Pratten
Diabetes mellitus during pregnancy is a considerable medical challenge, since it is related to ‎augmented morbidity and mortality concerns for both the fetus ‎and the pregnant woman. Records show that the etiology of diabetic ‎embryopathy is complicated, as many teratological factors might be involved ‎in the mechanisms of diabetes mellitus-induced congenital malformation. ‎In this study, the potential cardiotoxic effect of hyperglycemia with hyperketonemia was investigated by using two in vitro models; primary chick embryonic cardiomyocytes and stem cell derived cardiomyocytes, where adverse effects were recorded in both systems...
March 9, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28284725/altered-helper-t-cell-mediated-immune-responses-in-male-mice-conceived-through-in-vitro-fertilization
#18
Hiwa Karimi, Pooya Mahdavi, Shohreh Fakhari, Mohammad Reza Faryabi, Parisa Esmaeili, Omid Banafshi, Ebrahim Mohammadi, Fardin Fathi, Aram Mokarizadeh
A study using a mouse IVF model was conducted to examine the hypothesis that in vitro fertilization (IVF) treatment may lead to immune system alteration in the offspring. Phagocytic activity and lymphocyte proliferative responses to mitogen, alloantigen, and purified protein derivative (PPD) of Mycobacterium bovis were investigated in the splenocytes of BCG-treated male mice conceived by IVF or natural conception. Intracellular expression of T-bet and GATA3 in helper T-cell population were examined in both groups...
March 9, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28284726/endocrine-disrupting-compounds-modulates-adiponectin-secretion-expression-of-its-receptors-and-action-on-steroidogenesis-in-ovarian-follicle
#19
Agnieszka Rak, Karolina Zajda, Ewa Łucja Gregoraszczuk
We determined the effect of dioxin-like polychlorinated naphtalenes (PCN) (Halowax 1051) (100pg/ml), benzo(a)pyrene [B(a)P] (2.5ng/ml), hexachlorobenzene (HCBz) (0.2ng/ml) and non-dioxin like polybrominated diphenyl ether (BDE-47) (25ng/ml) and bisphenol A (BPA) (20ng/ml) on ovarian adiponectin secretion (ELISA) and its receptors expression (Western blot). Ovarian cells co-culture was used to examine action of endocrine disruptors (EDCs) on adiponectin (10μg/ml) stimulated steroidogenesis. B(a)P, HCBz, testosterone (T) decreased adiponectin secretion and receptors expression, BPA, BDE-47, estradiol (E2) had the opposite effect, while PCN had inhibitory effect only on adiponectin secretion...
March 8, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28286111/spermatogenesis-disruption-by-dioxins-epigenetic-reprograming-and-windows-of-susceptibility
#20
REVIEW
J Richard Pilsner, Mikhail Parker, Oleg Sergeyev, Alexander Suvorov
Dioxins are a group of highly persistent chemicals that are generated as by-products of industrial and natural processes. Reduction in sperm counts is among the most sensitive endpoints of dioxin toxicity. The exact mechanism by which dioxins reduce sperm counts is not known. Recent data implicate the role of epididymal factors rather than disruption of spermatogenesis. Studies reviewed here demonstrate that dioxins induce the transfer of environmental conditions to the next generation via male germline following exposures during the window of epigenetic reprogramming of primordial germ cells...
March 7, 2017: Reproductive Toxicology
journal
journal
29774
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"