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https://www.readbyqxmd.com/read/28735916/morbidity-and-mortality-of-middle-aged-and-elderly-narcoleptics
#1
Poul Jennum, Eva Wiberg Thorstensen, Line Pickering, Rikke Ibsen, Jakob Kjellberg
OBJECTIVES: The objective of the study was to evaluate the morbidities and mortality in a national group of middle-aged and elderly narcolepsy patients before and after the first diagnosis of the condition. METHODS: From the Danish National Patient Registry (NPR), 1174 patients (45.1% males) aged 20-59 years and 339 patients (44.8% males) aged 60+ who received a diagnosis of narcolepsy between 1998 and 2014 were compared, respectively, with 4716 and 1353 control citizens matched for age, gender and geography, who were randomly chosen from the Danish Civil Registration System Statistics...
August 2017: Sleep Medicine
https://www.readbyqxmd.com/read/28733191/ethnomedicobotanical-study-of-indigenous-knowledge-on-medicinal-plants-used-for-the-treatment-of-reproductive-problems-in-nalbari-district-assam-india
#2
Simi Talukdar, Partha Pradip Adhikari, Ananta Borah
ETHNOPHARMACOLOGICAL RELEVANCE: Reproductive problems are evolving as most predominant health care problems in many countries, furthermore, WHO, 2012 exemplified maternal illnesses, birth asphyxia and post birth difficulties, are rising at an alarming rate.Not all abnormalities of the human reproductive system have the same origin; the effects on reproductive problems would likely be affected by both male and female. For easy accessibility and affordability medicinal plants play a key role in primary healthcare care services in India and their use is an integral part of the cultural heritage...
July 18, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28732668/spermatogenesis-in-a-neotropical-marsupial-species-philander-frenatus-olfers-1818
#3
A F A Figueiredo, D A Cordeiro, J C Nogueira, S A Talamoni, L R França, G M J Costa
Despite the singular morphology of the male genital system and the different reproductive strategies of marsupials, little emphasis has been given to the testis morphology and spermatogenic kinetics in this mammalian order. The present study aimed to investigate the testis function and the duration of spermatogenesis in the southeastern four-eyed opossum, Philander frenatus. Testes of six adult males were routinely processed for histological and stereological analyses. In order to determine the duration of spermatogenesis, intratesticular injections of tritiated thymidine were performed 1h, 13days and 21days before the sacrifice...
July 13, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28729172/ascorbic-acid-supplementation-partially-prevents-the-delayed-reproductive-development-in-juvenile-male-rats-exposed-to-rosuvastatin-since-prepuberty
#4
Gabriel Adan Araújo Leite, Thamiris Moreira Figueiredo, Marciana Sanabria, Ana Flávia Mota Gonçalves Dias, Patrícia Villela E Silva, Airton da Cunha Martins, Fernando Barbosa, Wilma De Grava Kempinas
Dyslipidemias are occurring earlier in the population due to the increase of obesity and bad eating habits. Rosuvastatin inhibits the enzyme HMG-CoA reductase, decreasing total cholesterol. Ascorbic acid is an important antioxidant compound for male reproductive system. This study aimed to evaluate whether ascorbic acid supplementation may prevent the reproductive damage provoked by rosuvastatin administration at prepuberty. Male pups were distributed into six experimental groups that received saline solution 0...
July 17, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28727833/refugee-and-migrant-women-s-engagement-with-sexual-and-reproductive-health-care-in-australia-a-socio-ecological-analysis-of-health-care-professional-perspectives
#5
Zelalem B Mengesha, Janette Perz, Tinashe Dune, Jane Ussher
BACKGROUND: In Australia only 2.2% of published health research has focused on multi-cultural health despite the increase of culturally and linguistically diverse populations. Research on the perceptions and experiences of health care professionals (HCPs) in engaging with refugee and migrant women is also lacking. Given the integral role of HCPs in providing sexual and reproductive health (SRH) care for these populations, an understanding of the challenges they experience is required...
2017: PloS One
https://www.readbyqxmd.com/read/28723911/male-reproductive-system-and-spermatogenesis-of-limodromus-assimilis-paykull-1790
#6
Lea F Schubert, Stephanie Krüger, Gerald B Moritz, Veit Schubert
Based on advanced light and electron microscopy, we describe the male reproductive system and sperm development of Limodromus assimilis. The genital tract consists of pairs of uni-follicular testes, spermatic ducts with diverticula regions, seminal vesicles, accessory glands, an unpaired ejaculatory duct and an aedeagus containing an internal sac equipped with sclerotic scales. Based on their morphology, we draw conclusions about their functions. After spermatogenesis within the follicle, the spermatozoa become released from the sperm cysts...
2017: PloS One
https://www.readbyqxmd.com/read/28722165/dimorphic-ejaculates-and-sperm-release-strategies-associated-with-alternative-mating-behaviors-in-the-squid
#7
Lígia H Apostólico, José E A R Marian
Sperm competition is a powerful postcopulatory selective force influencing male adaptations associated with increasing fertilization success, and it is usually related to the evolution of different strategies of ejaculate expenditure between individuals. Ejaculates may also be influenced by additional selective pressures associated with sperm competition, such as timing between insemination and fertilization, female reproductive tract morphology, and fertilization environment. Also, males that adopt alternative mating tactics may face distinct sperm competition pressures, which may lead to the evolution of intraspecific diversity in ejaculates...
July 18, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28712675/ejaculates-are-not-used-as-nuptial-gifts-in-simultaneously-hermaphroditic-snails
#8
Monica Lodi, Fedde W Meijer, Joris M Koene
Promoted by sexual selection, males usually adopt different ways to increase their fertilization chances. In many insect taxa males donate nuptial gifts, together with sperm, which represent a valuable additional nutrient source that females can use to provision eggs. This has also been suggested to occur in simultaneous hermaphrodites, organisms with both sex functions. In theory, donation of nuptial gifts or extra nutrients might work in hermaphrodites that mate unilaterally (one-way donation of ejaculates), but will not be effective when these organisms mate reciprocally (mutual exchange of ejaculates), since on average each partner would receive the amount it also transfers...
May 25, 2017: Zoology: Analysis of Complex Systems, ZACS
https://www.readbyqxmd.com/read/28712647/perinatal-exposure-to-2-2-4-4-tetrabromodiphenyl-ether-induces-testicular-toxicity-in-adult-rats
#9
Ahmed Khalil, Mikhail Parker, Sarah E Brown, Sebnem E Cevik, Lian W Guo, Jake Jensen, Alexandra Olmsted, Daneal Portman, Haotian Wu, Alexander Suvorov
Since 1965, polybrominated diphenyl ethers (PBDEs) have been used internationally as flame-retardant additives. PBDEs were recently withdrawn from commerce in North America and Europe due to their environmental persistence, bioaccumulative properties and endocrine-disrupting effects. Generations exposed perinatally to the highest environmental doses of PBDE account for one-fifth of the total United States population. While, toxicity of PBDE for the male reproductive system has been demonstrated in several human and animal studies, the long-lasting effects of perinatal exposures on male reproduction are still poorly understood...
July 13, 2017: Toxicology
https://www.readbyqxmd.com/read/28707080/reproductive-outcomes-of-anestrous-goats-supplemented-with-spineless-opuntia-megacantha-salm-dyck-protein-enriched-cladodes-and-exposed-to-the-male-effect
#10
Cesar A Meza-Herrera, Omag Cano-Villegas, Arnoldo Flores-Hernandez, Francisco G Veliz-Deras, Guadalupe Calderon-Leyva, Juan M Guillen-Muñoz, Cristina García de la Peña, Cesar A Rosales-Nieto, Ulises Macias-Cruz, Leonel Avendaño-Reyes
The possible influence of the "male effect" upon reproductive outcomes of adult anestrous goats under marginal rangeland conditions and supplemented with protein-enriched Opuntia megacantha Salm-Dyck was evaluated. Reproductive variables included: estrus percentage (EST, %), estrus latency (ESL, hours), ovulation percentage (OP, %), ovulation rate (OR, units), average largest follicle at ovulation (LFO, mm), largest corpus luteum (LCL, mm), embryo number (EBN, units), and embryo implantation percentage (EIP, %)...
July 13, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28706321/cryptaphelenchus-varicaudatus-n-sp-rhabditida-ektaphelenchinae-from-tehran-province-iran
#11
Majid Pedram
Cryptaphelenchus varicaudatus n. sp. is described and illustrated. It was isolated from bark samples of dead or dying pine (Pinus spp.) trees with bark beetle frass and galleries, in Tehran province. The new species has 275- to 367-µm-long females (a medium-sized species) with distinctly annulated cuticle having three bands in lateral fields, lip region continuous with body contour, delicate knobbed stylet, monodelphic-prodelphic reproductive system with distinct spermatheca, short postvulval uterine sac (PUS), transverse vulval slit with raised posterior lip and body narrowing behind it, sclerotized vagina, simple intestine ending in a blind sac, having no rectum but vestigial anus in some specimens, and distal body end tip (tail tip) with variation in morphology (shape), from sharply or slightly pointed to bluntly rounded...
June 2017: Journal of Nematology
https://www.readbyqxmd.com/read/28705778/maternal-linuron-exposure-alters-testicular-development-in-male-offspring-rats-at-the-whole-genome-level
#12
Jianwei Bai, Hua Han, Feng Wang, Liyu Su, Hongwei Ding, Xiyin Hu, Binli Hu, Hong Li, Wei Zheng, Yan Li
Linuron is a widely used herbicide; its toxicity on the male reproductive system has been recognized. The current study was designed to explore the molecular mechanism underlying linuron-induced reproductive toxicity. Pregnant rats received daily oral gavage of linuron at the dose of 120mg/kg/d from gestation day (GD)12 to GD17. Tissues from male offspring rats were collected for pathological examination and microarray gene expression profiling. Changes in gene expression were further verified by quantitative real-time RT-PCR...
July 11, 2017: Toxicology
https://www.readbyqxmd.com/read/28701755/microbiota-composition-of-the-koala-phascolarctos-cinereus-ocular-and-urogenital-sites-and-their-association-with-chlamydia-infection-and-disease
#13
Miranda E Vidgen, Jonathan Hanger, Peter Timms
Disease caused by Chlamydia pecorum is characterised by ocular and urogenital infections that can lead to blindness and infertility in koalas. However, koalas that are infected with C. pecorum do not always progress to disease. In other host systems, the influence of the microbiota has been implicated in either accelerating or preventing infections progressing to disease. This study investigates the contribution of koala urogenital and ocular microbiota to Chlamydia infection and disease in a free ranging koala population...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28700107/cigarette-smoke-induces-rat-testicular-injury-via-mitochondrial-apoptotic-pathway
#14
He Lijuan, You Shuping, Gong Haiyan, Zhang Jing, Wang Li, Zhang Chen, Huang Yunfei, Zhong Chunxue, Zou Ying
An understanding of the causative mechanisms of the harmful effects of cigarette smoke on the male reproductive system remains incomplete. Here, we investigated three different inhaled cigarette smoke doses over five different exposure durations to identify how the testis is affected. The effects of cigarette smoke exposure on testicular germ cells were characterized by morphological changes and a significant elevation in the number of apoptotic cells. Caspase 3 activation increased dramatically after cigarette smoke exposure, accompanied by significant time-dependent expression of the pro-apoptotic proteins Bak (B cell lymphoma/leukemia 2 [Bcl-2] homologous antagonist killer), Bcl2l11 (a BH3 domain-only protein related to Bcl-2), Apaf1 (Apoptotic protease-activating factor-1), and Caspase 9...
July 12, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28699305/enhancement-of-the-lh-surge-by-male-olfactory-signals-is-associated-with-avpv-kiss1-cell-activation-in-female-rats
#15
Youki Watanabe, Kana Ikegami, Ren Ishigaki, Nahoko Ieda, Yoshihisa Uenoyama, Kei-Ichiro Maeda, Hiroko Tsukamura, Naoko Inoue
Olfactory stimuli play an important role in regulating reproductive functions in mammals. The present study investigated the effect of olfactory signals derived from male rats on kisspeptin neuronal activity and luteinizing hormone (LH) secretion in female rats. Wistar-Imamichi strain female rats were ovariectomised (OVX) and implanted with preovulatory levels of oestradiol-17β (E2). OVX+E2 rats were sacrificed 1 hour after exposure to either: clean bedding, female-soiled bedding or male-soiled bedding. Dual staining for Kiss1 mRNA in situ hybridization and c-Fos immunohistochemistry revealed that the numbers of Kiss1-expressing cells and c-Fos-immunopositive Kiss1-expressing cells in the anteroventral periventricular nucleus (AVPV) were significantly higher in OVX+E2 rats exposed to male-soiled bedding than those of the other groups...
July 12, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/28695774/regulatory-risk-assessments-is-there-a-need-to-reduce-uncertainty-and-enhance-robustness-update-on-propylparaben-in-relation-to-its-eu-regulatory-status
#16
D Snodin
Over 10 years ago, propylparaben (propyl- p-hydroxybenzoate; PP) was withdrawn as a permitted food preservative in the EU based entirely on findings reported in a single dietary study in juvenile rats claiming to show adverse effects on male reproductive parameters [Oishi S. Effects of propyl paraben on the male reproductive system. Food Chem Toxicol 2002; 40(12): 1807 -1813]. Subsequent data reviews have cast serious doubt on the validity of the Oishi results, mainly in relation to aberrant concurrent-control values, and in two further comprehensive studies using neonatal and juvenile rats there were no adverse effects in males at oral doses up to 1000 mg/kg/day...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/28694502/g-protein-coupled-receptor-64-is-required-for-decidualization-of-endometrial-stromal-cells
#17
Jung-Yoon Yoo, Jong Il Ahn, Tae Hoon Kim, Sungryul Yu, Ji Yeon Ahn, Jeong Mook Lim, Jae-Wook Jeong
Although GPR64 has an important role for male fertility, its physiological roles in the female reproductive system are still unknown. In the present study, immunohistochemical analysis reveals a spatiotemporal expression of GPR64 in the uterus during early pregnancy. Observation of remarkable induction of GPR64 expression in uterine decidual cells points to its potential physiological significance on decidualization. The decidualization of uterine stromal cells is a key event in implantation. Progesterone (P4) signaling is crucial for the decidualization of the endometrial stromal cells for successful pregnancy...
July 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28693649/morphological-and-molecular-characterization-of-tarantobelus-arachnicida-gen-n-sp-n-nematoda-rhabditida-brevibuccidae-a-parasitic-nematode-of-tarantulas
#18
J Abolafia, R Peña-Santiago
A new genus and new species, Tarantobelus arachnicida, was found in the oral opening of tarantula spiders bred in captivity in Poland. The new species is characterized by having a small body (0.77-0.95 mm long in females and 0.66-0.84 mm in males), cuticle poorly annulated by transverse incisures, lateral field inconspicuous, lips separated with small cuticular flaps topping each lip, stoma panagrolaimoid with gymnostom well developed with robust and refringent rhabdia, pharynx panagrolaimoid with isthmus slightly longer than the basal bulb, intestine with cardiac (anterior) and rectal (posterior) areas with narrower walls...
July 11, 2017: Journal of Helminthology
https://www.readbyqxmd.com/read/28692354/potential-protective-effects-of-polysaccharide-extracted-from-ulva-lactuca-against-male-reprotoxicity-induced-by-thiacloprid
#19
Intissar Kammoun, Intidhar Bkhairia, Fatma Ben Abdallah, Imen Jaballi, Naourez Ktari, Ons Boudawara, Moncef Nasri, Neji Gharsallah, Ahmed Hakim, Ibtissem Ben Amara
CONTEXT: Polysaccharides (PSs) from seaweeds have been reported to possess biological activity of potential medicinal values. OBJECTIVE: The current study was conducted to establish the protective effects of PS extracted from Ulva lactuca against oxidative stress induced by Thiacloprid (THC) in the rat reproductive system. MATERIALS AND METHODS: Rats were exposed either to THC, THC + PS (100 mg/kg), or THC + PS (200 mg/kg). RESULTS: Our study showed that THC induced severe disorders in the functional sperm parameters...
July 10, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28691222/the-morphology-of-the-male-reproductive-system-spermatogenesis-and-the-spermatozoon-of-daphnia-magna-crustacea-branchiopoda
#20
Maggie Wuerz, Erwin Huebner, Judith Huebner
This study analyses the histological and cellular morphology of the testis and sperm development in the male Daphnia magna Straus 1820. Due to the rarity of males and predominately parthenogenetic lifecycle of Daphnia, there has been limited detailed information on males in contrast to the well-studied female. Using light and electron microscopy approaches, we describe the morphology of the testis during the progression from an immature to mature testis. The testis has an encasing muscular mesh sheath outside the basal lamina, beneath which is a thin somatic epithelial cell layer...
July 10, 2017: Journal of Morphology
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