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https://www.readbyqxmd.com/read/27900998/novel-mutations-in-psenen-gene-in-two-chinese-acne-inversa-families-manifested-as-familial-multiple-comedones-and-dowling-degos-disease
#1
Cheng Zhou, Guang-Dong Wen, Lwin Myint Soe, Hong-Jun Xu, Juan Du, Jian-Zhong Zhang
BACKGROUND: Acne inversa (AI), also called hidradenitis suppurativa, is a chronic, inflammatory, recurrent skin disease of the hair follicle. Familial AI shows autosomal-dominant inheritance caused by mutations in the γ-secretase genes. This study was aimed to identify the specific mutations in the γ-secretase genes in two Chinese families with AI. METHODS: In this study, two Chinese families with AI were investigated. All the affected individuals in the two families mainly manifested with multiple comedones, pitted scars, and a few inflammatory nodules on their face, neck, trunk, axilla, buttocks, upper arms, and thighs...
2016: Chinese Medical Journal
https://www.readbyqxmd.com/read/27866148/identification-of-genes-mediating-drosophila-follicle-cell-progenitor-differentiation-by-screening-for-modifiers-of-gal4-uas-variegation
#2
Ming-Chia Lee, Andrew D Skora, Allan C Spradling
The Drosophila melanogaster ovarian follicle cell lineage provides a powerful system for investigating how epigenetic changes contribute to differentiation. Downstream from an epithelial stem cell, follicle progenitors undergo nine mitotic cell cycles before transitioning to the endocycle and initiating differentiation. During their proliferative phase, follicle progenitors experience Lsd1-dependent changes in epigenetic stability that can be monitored using GAL4::UAS variegation. Eventually, follicle progenitors acquire competence to respond to Delta, a Notch ligand present in the environment, which signals them to cease division and initiate differentiation...
November 18, 2016: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/27865446/the-use-of-utrogestan-during-controlled-ovarian-hyperstimulation-in-normally-ovulating-women-undergoing-in%C3%A2-vitro-fertilization-or-intracytoplasmic-sperm-injection-treatments-in-combination-with-a-freeze-all-strategy-a-randomized-controlled-dose-finding-study
#3
Xiuxian Zhu, Hongjuan Ye, Yonglun Fu
OBJECTIVE: To compare the clinical characteristics in a Utrogestan and hMG protocol with the use of different doses of Utrogestan in normally ovulating women undergoing in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) treatments. DESIGN: Prospective controlled study. SETTING: Tertiary-care academic medical center. PATIENT(S): A total of 150 infertile patients undergoing IVF/ICSI treatments. INTERVENTION(S): Utrogestan and hMG were administered simultaneously beginning on cycle day 3...
November 16, 2016: Fertility and Sterility
https://www.readbyqxmd.com/read/27865418/characterizing-emergence-and-divergence-in-the-first-follicular-wave-in-a-tropically-adapted-bos-taurus-breed
#4
Rodrigo Dorneles Tortorella, Guilherme de Paula Nogueira, Mairon Rocha Modesto, Priscilla Cristine Passoni Silva, Joseane Padilha da Silva, Jairo Pereira Neves, Alexandre Floriani Ramos
Tropically adapted Bos taurus breeds are descended from the cattle which were brought from the Iberian Peninsula to Latin America by the colonizers and which adapted over time to local conditions. These breeds have become a genetic treasure that must be preserved. The objective of this study was to characterize ovarian follicular emergence and divergence in tropically adapted B. taurus cows and heifers. Cyclic heifers (n = 11) and nonlactating, multiparous cows (n = 11) were examined at 8-hour intervals using ultrasonography starting on the day following the final application of PGF2α, which was used to synchronize the estrous cycle, and ending 5 days after ovulation...
January 15, 2017: Theriogenology
https://www.readbyqxmd.com/read/27862394/nasal-immunization-with-inhibin-dna-vaccine-delivered-by-attenuated-salmonella-choleraesuis-for-improving-ovarian-responses-and-fertility-in-cross-bred-buffaloes
#5
Q Liu, Z U Rehman, J J Liu, L Han, X R Liu, L G Yang
This study was conducted to determine the effect of immunization with inhibin DNA vaccine delivered by attenuated Salmonella choleraesuis on ovarian responses and fertility in cross-bred buffaloes. A total of 134 cross-bred buffaloes were divided into four groups: groups T1 (n = 34), T2 (n = 35) and T3 (n = 31) were nasal immunized twice a day with 10 ml of 1 × 10(10)  CFU/ml of the C501 (pVAX-asd-IS) vaccine for 5, 3 and 1 day, respectively. Group C (n = 34) was nasal immunized with 10 ml PBS for 5 days...
November 14, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27856496/interrelationships-among-reproductive-hormones-and-antral-follicle-count-in-human-menstrual-cycles
#6
David Mark Robertson, Chel Hee Lee, Angela Baerwald
It is recognised that ovarian factors, including steroid and protein hormones, are critical in the feedback regulation of pituitary gonadotropins; however, their individual contributions are less defined. The aim of this study was to explore the reciprocal relationships between ovarian and pituitary hormones across the normal ovulatory menstrual cycle as women age. FSH, LH, oestradiol, progesterone, inhibin A, inhibin B and anti-mullerian hormone (AMH) were measured in serum collected every 1-3 days across one interovulatory interval (IOI) from 26 healthy women aged 18-50 years...
November 2016: Endocrine Connections
https://www.readbyqxmd.com/read/27803582/impact-of-gonadotropin-releasing-hormone-antagonist-addition-on-pregnancy-rates-in-gonadotropin-stimulated-intrauterine-insemination-cycles
#7
Shikha Jain, Abha Majumdar
OBJECTIVES: The objective of the study is to evaluate the efficacy of gonadotropin-releasing hormone (GnRH) antagonist in improving clinical pregnancy rate in gonadotropin-stimulated intrauterine insemination (IUI) cycles in patients of unexplained infertility. STUDY DESIGN: This was a prospective, randomized case-controlled study. SETTINGS: The study was conducted in the infertility clinic of a tertiary care center. MATERIALS AND METHODS: Four hundred twenty-seven women undergoing IUI following controlled ovarian stimulation with gonadotropins (recombinant follicle-stimulating hormone [r-FSH] 75 IU/day) were randomly divided into two groups...
July 2016: Journal of Human Reproductive Sciences
https://www.readbyqxmd.com/read/27793176/differential-regulation-of-janus-kinase-3-jak3-in-bovine-preovulatory-follicles-and-identification-of-jak3-interacting-proteins-in-granulosa-cells
#8
Kalidou Ndiaye, Amélie Castonguay, Gabriel Benoit, David W Silversides, Jacques G Lussier
BACKGROUND: Janus kinase 3 (JAK3) is a member of the membrane-associated non-receptor tyrosine kinase protein family and is considered predominantly expressed in hematopoietic cells. We previously identified JAK3 as a differentially expressed gene in granulosa cells (GC) of bovine preovulatory follicles. The present study aimed to further investigate JAK3 regulation, to identify protein binding partners and better understand its mode of action in bovine reproductive cells. RESULTS: GC were obtained from small follicles (SF), dominant follicles at day 5 of the estrous cycle (DF), and ovulatory follicles, 24 h following hCG injection (OF)...
October 28, 2016: Journal of Ovarian Research
https://www.readbyqxmd.com/read/27771115/comparing-strategies-to-synchronize-estrus-before-fixed-time-artificial-insemination-in-primiparous-2-year-old-beef-cows
#9
J M Abel, B E Bishop, J M Thomas, M R Ellersieck, S E Poock, M F Smith, D J Patterson
Two experiments evaluated controlled internal drug release (CIDR)-based protocols to synchronize estrus in primiparous 2-year-old beef cows. In each experiment, treatments were balanced according to body condition score and days postpartum. Experiment 1 compared the 14-day CIDR-PG (14-d) and 7-day CO-Synch + CIDR (7-d) protocols on the basis of estrous response, pregnancy rates after fixed-time artificial insemination (FTAI), and final pregnancy rate. Cows assigned to 14-d (n = 355) received a CIDR insert on Day 0 with removal on Day 14...
September 13, 2016: Theriogenology
https://www.readbyqxmd.com/read/27756855/inhibin-b-secretion-and-fsh-isoform-distribution-may-play-an-integral-part-of-follicular-selection-in-the-natural-menstrual-cycle
#10
REVIEW
C Yding Andersen
The aim of the present paper is to expand the concept on how follicular selection takes place in the follicular phase of the natural menstrual cycle. It is suggested that inhibin-B exerts a more intimate role in this process than previously understood. Inhibin-B shows a peak in the circulation around cycle day 7, simultaneous with selection of the dominant follicle, whereas levels of estradiol and inhibin-A only start to increase a few days later suggesting that inhibin-B is mainly responsible for downregulating pituitary FSH release...
October 18, 2016: Molecular Human Reproduction
https://www.readbyqxmd.com/read/27744448/the-effects-of-polyadenylation-status-on-mpfs-during-in-vitro-porcine-oocyte-maturation
#11
Huiyu Liu, Yan Gao, Bo Zhai, Hao Jiang, Yu Ding, Lianjiang Zhang, Changhong Li, Qiong Deng, Xianfeng Yu, Jiabao Zhang
AIMS: This study aims to clarify the effects of polyadenylation status on M-phase promoting factors (MPFs) during in vitro porcine oocyte maturation. METHODS: In this study, porcine follicular oocytes from large follicles (> 5 millimeter (mm)) and small follicles (< 3 mm) were examined at different follicular developmental stages. The polyadenylation of maternal mRNAs was inhibited by the addition of 3'-deoxyadenosine (3'-da) during the germinal vesicle (GV)(0 h), GV breakdown (GVBD)(18 h), metaphase I (MI)(28 h), and metaphase II (MII) (44 h) stages...
October 17, 2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27743689/ovulation-synchronization-with-estradiol-benzoate-or-gnrh-in-a-timed-artificial-insemination-protocol-in-buffalo-cows-and-heifers-during-the-nonbreeding-season
#12
N A T Carvalho, J G Soares, D C Souza, J R G Maio, J N S Sales, B Martins Júnior, R C Macari, M J D'Occhio, P S Baruselli
The aim of this study was to compare estradiol benzoate (EB) and GnRH for the induction of ovulation in a TAI protocol in buffalo during the nonbreeding season. In experiment 1, 141 buffaloes (56 cows and 85 heifers) received an intravaginal P4 device (1.0 g) plus EB (2.0-mg, intramuscular [im]) at random stage of the estrous cycle (Day 0). On Day 9, the P4 device was removed, and buffaloes were given PGF2α (0.53-mg im sodium cloprostenol) plus eCG (400-IU im). Buffaloes were then randomly allocated to one of three groups and treated as follows: EB24 (n = 47), EB (1...
September 13, 2016: Theriogenology
https://www.readbyqxmd.com/read/27683091/linear-trichilemmomas-on-the-ankle-of-a-28-year-old-female
#13
Jessica L Gonzalez, Natalia Plotnikova, Andrew Seymour, Ciaran M Mannion, Richard Danialan, David Rosmarin
Trichilemmomas are benign cutaneous proliferations derived from the outer root sheath of the hair follicle. They most often occur on the head and neck region and show a female predominance. When multiple, they are associated with Cowden syndrome (CS), a rare disorder due to an autosomal dominant germline mutation in PTEN (phosphatase and tensin homolog on chromosome 10), a tumor suppressor gene. Trichilemmomas outside of the head and neck region are rare, and as such, the association with CS is not clear. A 28-year-old healthy female with no significant family history of cancer presented to her dermatologist with multiple erythematous papules on the left anterior ankle, starting at birth...
September 28, 2016: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/27650571/reduction-in-the-mrna-expression-of-svegfr1-and-svegfr2-is-associated-with-the-selection-of-dominant-follicle-in-cows
#14
P V Ortega Serrano, A Guzmán, C G Hernández-Coronado, H Castillo-Juárez, A M Rosales-Torres
The vascular endothelial growth factor (VEGF) is essential for follicular development by promoting follicular angiogenesis, as well as for the proliferation and survival of granulosa cells. The biological effects of VEGF are regulated by two membrane receptors, VEGFR1 and VEGFR2, and two soluble receptors, sVEGFR1 and sVEGFR2, which play an antagonistic role. Thus, the objective of this study was to identify the mRNA expression pattern of total VEGF, VEGFR1, VEGFR2, sVEGFR1 and sVEGFR2 in bovine preselected follicles (PRF) and post-selected follicles (POF)...
December 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27648384/multiple-familial-trichoepithelioma-confirmation-via-dermoscopy
#15
Cristián Navarrete-Dechent, Shirin Bajaj, Ashfaq A Marghoob, Sergio González, Daniel Muñoz
Trichoepitheliomas are uncommon benign adnexal neoplasms that originate from the hair follicles. Multiple familial trichoepithelioma constitute an autosomal dominant disease characterized by the appearance of multiple flesh-colored, symmetrical papules, tumors and/or nodules in the central face and occasionally on the scalp. Although clinical diagnosis is usually straightforward in light of the family history and naked-eye examination, dermoscopy may aid in its confirmation. Dermoscopy of each papule revealed in-focus arborizing vessels, multiple milia-like cysts and rosettes amidst a whitish background...
July 2016: Dermatology Practical & Conceptual
https://www.readbyqxmd.com/read/27644923/lysophosphatidic-acid-expression-in-theca-cells-depends-on-the-type-of-bovine-ovarian-follicle
#16
E Sinderewicz, K Grycmacher, D Boruszewska, I Kowalczyk-Zięba, I Woclawek-Potocka
Lysophosphatidic acid (LPA) exerts various actions on the mammalian reproductive system. In cows, LPA stimulates the synthesis and secretion of luteotropic factors in the ovary, which affects the growth and development of ovarian follicles. The role of LPA in granulosa cells, oocyte and oocyte-cumulus complex (COC) has previously been investigated; but its role in the theca layer, which is an important structural and functional component of the ovarian follicle, is still unclear. The goal of this study was to investigate the expression of LPA in theca cells originating from different bovine ovarian follicle types...
September 20, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27614897/expression-pattern-of-circadian-genes-and-steroidogenesis-related-genes-after-testosterone-stimulation-in-the-human-ovary
#17
Minghui Chen, Yanwen Xu, Benyu Miao, Hui Zhao, Lu Luo, Huijuan Shi, Canquan Zhou
BACKGROUND: Previous studies have shown that circadian genes might be involved in the development of polycystic ovarian syndrome (PCOS). Hyperandrogenism is a hallmark feature of PCOS. However, the effect of hyperandrogenism on circadian gene expression in human granulosa cells is unknown, and the general expression pattern of circadian genes in the human ovary is unclear. METHODS: Expression of the circadian proteins CLOCK and PER2 in human ovaries was observed by immunohistochemistry...
2016: Journal of Ovarian Research
https://www.readbyqxmd.com/read/27614836/changes-in-fibroblast-growth-factor-9-mrna-in-granulosa-and-theca-cells-during-ovarian-follicular-growth-in-dairy-cattle
#18
L F Schütz, N B Schreiber, J N Gilliam, C Cortinovis, M L Totty, F Caloni, J R Evans, L J Spicer
Fibroblast growth factor 9 (FGF9) has been suggested to act as an antidifferentiation factor in cattle by reducing steroidogenesis and increasing cell proliferation in granulosa (GC) and theca (TC) cells. The objective of this study was to characterize FGF9 mRNA abundance in GC and TC during development of dominant follicles in dairy cattle. Estrous cycles of nonlactating dairy cattle were synchronized, and ovaries were collected on either d 3 to 4 (n = 8) or 5 to 6 (n = 8) postovulation for GC and TC RNA extraction from small (1-5 mm), medium (5...
September 7, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27612816/antibacterial-performance-and-in-vivo-diabetic-wound-healing-of-curcumin-loaded-gum-tragacanth-poly-%C3%AE%C2%B5-caprolactone-electrospun-nanofibers
#19
Marziyeh Ranjbar-Mohammadi, Shahram Rabbani, S Hajir Bahrami, M T Joghataei, F Moayer
In this study we describe the potential of electrospun curcumin-loaded poly(ε-caprolactone) (PCL)/gum tragacanth (GT) (PCL/GT/Cur) nanofibers for wound healing in diabetic rats. These scaffolds with antibacterial property against methicillin resistant Staphylococcus aureus as gram positive bacteria and extended spectrum β lactamase as gram negative bacteria were applied in two forms of acellular and cell-seeded for assessing their capability in healing full thickness wound on the dorsum of rats. After 15days, pathological study showed that the application of GT/PCL/Cur nanofibers caused markedly fast wound closure with well-formed granulation tissue dominated by fibroblast proliferation, collagen deposition, complete early regenerated epithelial layer and formation of sweat glands and hair follicles...
December 1, 2016: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/27609083/effects-of-excess-metabolizable-protein-on-ovarian-function-and-circulating-amino-acids-of-beef-cows-2-excessive-supply-in-varying-concentrations-from-corn-gluten-meal
#20
T C Geppert, A M Meyer, G A Perry, P J Gunn
In the dairy industry, excess dietary CP is consistently correlated with decreased conception rates. However, amount of excess CP effects on reproductive function in beef cattle is largely undefined. The objective of this experiment was to determine the effects of excess metabolizable protein (MP) supplementation from a moderately abundant rumen undegradable protein (RUP) source (corn gluten meal: 62% RUP) on ovarian function and circulating amino acid (AA) concentrations in beef cows consuming low quality forage...
September 9, 2016: Animal: An International Journal of Animal Bioscience
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