bluuebunny/crossref_metadata_2025_split huggingface dataset:
Investigating seed dormancy in cotton (Gossypium hirsutum L.): understanding the physiological changes in embryo during after‐ripening and germination
Authors: Wang L. R. , Yang X. N. , Gao Y. S. , Zhang X. Y. , Hu W. , Zhou Z. , Meng Y. L. 
Published: May 2019

Abstract

The dormancy of seeds of upland cotton can be broken during dry after‐ripening, but the mechanism of its dormancy release remains unclear.

Freshly harvested cotton seeds were subjected to after‐ripening for 180 days. Cotton seeds from different days of after‐ripening (DAR) were sampled for dynamic physiological determination and germination tests. The intact seeds and isolated embryos were germinated to assess effects of the seed coat on embryo germination. Content of H2O2 and phytohormones and activities of antioxidant enzymes and glucose‐6‐phosphate dehydrogenase were measured during after‐ripening and germination.

Germination of intact seeds increased from 7% upon harvest to 96% at 30 DAR, while embryo germination improved from an initial rate of 82% to 100% after 14 DAR. Based on T50 (time when 50% of seeds germinate) and germination index, the intact seed and isolated embryo needed 30 and 21 DAR, respectively, to acquire relatively stable germination. The content of H2O2 increased during after‐ripening and continued to increase within the first few hours of imbibition, along with a decrease in abscisic acid (ABA) content. A noticeable increase was observed in gibberellic acid content during germination when ABA content decreased to a lower level. Coat removal treatment accelerated embryo absorption of water, which further improved the accumulation of H2O2 and changed peroxidase content during germination.

For cotton seed, the alleviation of coat‐imposed dormancy required 30 days of after‐ripening, accompanied by rapid dormancy release (within 21 DAR) in naked embryos. H2O2 acted as a core link between the response to environmental changes and induction of other physiological changes for breaking seed dormancy.
Understanding the development of intermuscular bones in teleost: status and future directions for aquaculture
Authors: Nie Chun‐Hong , Hilsdorf Alexandre W. S. , Wan Shi‐Ming , Gao Ze‐Xia 
Published: May 2019

AbstractAs one of the most sustainable protein sources for humans, aquaculture is the fastest growing food production sector in agriculture. According to the recent FAO estimate, there are 21 principal aquaculture fish species around the worldwide. Among these cultured species, almost half of them belong to Cypriniformes, the species from which all have a certain number of intermuscular bones (IBs). IBs are small spicule‐like bones existing in the muscle fillet, which are existed only in lower teleost and of course have a negative effect on fish quality and aquatic product processing. Many studies have been focusing on IBs number, morphology, and more and more become focusing on its development molecular mechanism. In the review, we summarized the recent progress and discussed with following directions: (i) Controversial on the origin of IBs, ossified from tendons or ligaments? (ii) IBs counts and morphology revealed big variation among different species; (iii) Ossification patterns of IBs might be related with different swimming modes among the teleost fish, and its development belongs to intramembranous ossification without cartilaginous phase; (iv) Transcriptome/microRNA (miRNA)/proteomics and gene functional analysis had been used to investigate the molecular mechanism of IBs development and some genes showed certain regulatory roles during IBs’ development; (v) The reports showed that some breeding technologies could make a certain effect on IBs counts in fish species, but there are rare reports with success on deleting or significantly reducing IBs counts. Meanwhile, we also discuss the challenges and future directions of reducing or even deleting IBs in aquaculture.
Heritability estimates and genetic correlations of various production and reproductive traits of different grades of dairy cattle reared under subtropical condition
Authors: Ali Ilyas , Muhammad Suhail Syed , Shafiq Muhammad 
Published: May 2019

AbstractInheritance of economic traits and their genetic correlation was studied in different breeds and their various grades (crossbred’s cattle) under the subtropical condition. Data on principal parameters comprising 10 years, that is 2004–2014, were utilized for the present study. Different grades of dairy cows comprising Holstein Friesian (HF), Sahiwal x Friesian (SxHF), Jersey (J), Jersey x Achai (JxAC) and Achai (AC) were included in the study. Heritability estimates and genetic correlations of some important productive and reproductive traits were worked out. Heritability estimates of certain economic traits were found to be: birthweight, 0.32 ± 0.181; age at maturity, 0.11 ± 0.136; age at first calving, 0.19 ± 0.162; days open, 0.09 ± 0.121; calving interval, 0.14 ± 0.211; dry period, 0.11 ± 0.124; lactation length, 0.04 ± 0.212 and lactation yield, 0.46 ± 0.206. Genetic correlation showed that body weight was significantly and positively correlated with lactation length (0.30) and lactation yield (0.81), while negatively correlated with age at maturity, age at first calving, days open, calving interval and dry period (−0.09, −0.07, −0.16, −0.34 and −0.002, respectively). Calving interval was positively and significantly correlated with the dry period (0.56), lactation length (0.72) and lactation yield (0.37). Moderate to higher heritability estimates with adequate genetic variance was found for body weight and lactation yield. The moderate to higher heritability estimates of birthweight in the present study revealed that this important trait might be considered in selection criteria.
The challenge for the soil science community to contribute to the implementation of the UN Sustainable Development Goals
Authors: Bouma Johan , Montanarella Luca , Evanylo Gregory 
Published: May 2019

AbstractSeventeen Sustainable Development Goals (SDGs) were adopted by 193 Governments at the General Assembly of the United Nations in 2015 for achievement by 2030. These SDGs present a roadmap to a sustainable future and a challenge to the science community. To guide activities and check progress, targets and indicators have been and are still being defined. The soil science community has published documents that describe the primary importance of soil for SDGs addressing hunger, water quality, climate mitigation and biodiversity preservation, and secondary relevance of soil for addressing several other SDGs. Soil scientists only marginally participated in the SDG discussions and are currently only peripherally engaged in discussions on targets or indicators. Agreement on several soil‐related indicators has still not been achieved. Involvement of soil scientists in SDG‐based studies is desirable for both developing solutions and increasing the visibility of the soil profession. Inputs into policy decisions should be improved as SDG committee members are appointed by Governments. Possible contributions of soil science in defining indicators for the SDGs are explored in this paper. We advocate the pragmatic use of soil–water–atmosphere–plant simulation models and available soil surveys and soil databases where “representative” soil profiles for mapping units (genetically defined genoforms) are functionally expressed in terms of several phenoforms reflecting effects of different types of soil use and management that strongly affect functionality.
Effects of depression on healing and inflammatory responses of acute wounds in rats
Authors: Jian Jin , Yi‐Heng Huang , Bang‐Hui Zhu , Jian‐Hua Chen , Xu‐Dong Zhang , Shi‐Chu Xiao , Peng‐Fei Luo , Xiao‐Yan Hu , Zhao‐Fan Xia 
Published: May 2019

AbstractThis study aimed to elucidate the effect of depression on the healing of acute wounds in rats. We hypothesized that depression would have negative effects on inflammation and wound healing and that antidepressant therapy would reverse these effects. This study included 100 rats randomly allocated into five groups: control group (CG), depression group (DG), pre‐depression group (PDG), antidepressant group (AG), and pre‐antidepressant group (PAG). Acute wounds were created on the rats' backs. The groups were subjected to no interventions (CG), aversive stimuli before (PDG) and after (DG) wound creation, and antidepressant treatment before (PAG) and after (AG) wound creation. On the day of wound creation and on days 3, 6, 9, and 12 after wound creation, observations of the wound area and degree of depression (evaluated using the sucrose preference test, open‐field test, and weight change) were recorded. On days 6 and 12 after wound creation, venous serum and wound tissues were collected. Tumor necrosis factor alpha (TNF‐α), interleukin (IL)‐1β, IL‐6, and IL‐10 levels were measured using the enzyme‐linked immunosorbent assay. Results showed an initial increase followed by a decrease in the degree of depression in all groups except DG (continuous decline). The wound‐healing rate was significantly lower in PDG and DG than in CG; it was higher in AG and PAG than in CG. DG and PDG had higher concentrations of inflammatory cytokines than CG, and AG and PAG had lower concentrations than CG. This indicates that the onset of depression delays the healing of acute wounds and aggravates the inflammatory response in rats. Antidepressant treatment counteracts both of these negative effects.
The exercise timing hypothesis: can exercise training compensate for the reduction in blood vessel function after menopause if timed right?
Authors: Gliemann L. , Hellsten Y. 
Published: May 2019

AbstractAs women enter menopause at mid‐life, oestrogen production ceases and its many beneficial effects on cardiovascular health are lost whereby the age‐related risk of cardiovascular disease is accelerated. Oestrogen acts via oestrogen receptors and can activate the oestrogen response element leading to upregulation of a number of proteins of importance for vascular health, including the vasodilator and anti‐atherogenic enzyme endothelial nitric oxide synthase and angiogenic factors. Hormone replacement therapy can to some extent counteract the loss of oestrogen although studies have shown that such treatment may only be effective if initiated soon after menopause, the so‐called timing hypothesis. An attractive alternative to hormone therapy is regular physical activity, as it is known that exercise induces many of the same cardiovascular health protective effects as oestrogen. Nevertheless, results from studies on the effect of physical activity on vascular function and cardiovascular health are inconsistent, with some studies showing a lack of effect of a physical activity programme and others showing a beneficial effect. The reason for this divergence is unclear but here we explore whether there may be a timing aspect also for exercise training, the exercise timing hypothesis, in which initiation of exercise interventions soon after menopause may be more effective than initiation many years after. The possibility that oestrogen‐related receptor‐α and oxidative stress may play a role in such a timing effect is discussed.
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Aerobic exercise training and vascular function with ageing in healthy men and women
Authors: Seals Douglas R. , Nagy Erzsebet E. , Moreau Kerrie L. 
Published: May 2019

AbstractCardiovascular diseases (CVD) remain the leading cause of morbidity and mortality in both men and women in developed societies. Age is the greatest risk factor for CVD due largely to adverse changes to arteries that include stiffening of the large elastic arteries (aortic and carotid arteries) and endothelial dysfunction. Vascular ageing is driven by oxidative stress, which reduces nitric oxide (NO) bioavailability and stimulates changes in the extracellular matrix. In women, reductions in circulating oestrogens with menopause interact with ageing processes to induce vascular dysfunction. Regular aerobic exercise is the most evidence‐based strategy for reducing CVD risk with ageing in both men and women. Much of this cardiovascular‐protective effect of aerobic exercise is likely due to its vascular health‐enhancing influence. Large elastic artery stiffening with advancing age is attenuated in healthy adults engaged in aerobic exercise training, and aerobic exercise interventions improve arterial stiffness in previously sedentary middle‐aged and older men and postmenopausal women. Regular aerobic exercise also enhances endothelial function with ageing in men (by reducing oxidative stress and preserving NO bioavailability), but not consistently in oestrogen‐deficient postmenopausal women. In postmenopausal women, treatment with oestradiol appears to restore the ability of aerobic exercise to improve NO‐mediated endothelial function by reducing oxidative stress. Several research gaps exist in our understanding of potential sex differences in the vascular adaptations to regular aerobic exercise. More information is needed on the factors that are responsible for sex differences, including the role of circulating oestrogens in transducing the aerobic exercise training ‘stimulus’.
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Incorporating dextrose gel and feeding in the treatment of neonatal hypoglycaemia
Authors: Gregory Katherine , Turner Daria , Benjamin Charis Nicole , Monthe-Dreze Carmen , Johnson Lise , Hurwitz Shelley , Wolfsdorf Joseph , Sen Sarbattama 
Published: May 2019

ObjectivesTo determine the impact of incorporating dextrose gel in the treatment of neonatal hypoglycaemia (NH) and the role of feeding type in NH outcomes.Study designWe conducted a retrospective analysis of 2688 infants >35 weeks’ gestation who were screened for NH before and after implementation of a clinical guideline for NH evaluation and treatment. We analysed the proportion of infants who required intravenous dextrose for NH before and after guideline implementation, the change in blood glucose concentrations with gel by feeding type and the odds of successful NH treatment with gel and feeding by feeding type.ResultsFollowing implementation of the guideline, a lower proportion of infants required intravenous dextrose for NH treatment (8.6% (60 infants) before guideline vs. 5.6% (112 infants) after guideline (p=0.007)). The median rise in blood glucose concentration with gel administration in the entire cohort was 0.61 mmol/L (11 mg/dL) (IQR 0.28–1.06 mmol/L (5–19 mg/dL)). Blood glucose concentration of formula-fed infants rose more in response to feeding and gel than breastfed infants (p≤0.0001). Formula feeding was associated with a lower odds of recurrent hypoglycaemia, as defined by requiring a second gel, in a fully adjusted model. Specifically, in infants with a pregel blood glucose of 2.00–2.17 mmol/L (36–39 mg/dL), formula feeding with gel was associated with a lower odds of recurrent hypoglycaemia.ConclusionsDextrose gel is an effective tool in the treatment of NH. An infant’s pregel blood glucose concentration may be helpful in guiding decisions around type of feeding provided.
Safety and tolerability of ranibizumab in uni/bilateral neovascular age-related macular degeneration: 12-month TWEYEs study
Authors: Bandello Francesco , Staurenghi Giovanni , Ricci Federico , Midena Edoardo , Viola Francesco , Lupieri Sinibaldi Tommaso , Colombo Laura , Peruzzi Elena , Bassanini Stefania 
Published: May 2019

BackgroundTo evaluate the safety and tolerability of ranibizumab 0.5 mg in patients with uni/bilateral neovascular age-related macular degeneration (nAMD) and best-corrected visual acuity (BCVA)<2/10 and/or second eye affected, regardless of BCVA.MethodsIn this 12-month, prospective, multicentre, open-label, single arm, pragmatic interventional study, patients (N=941) aged ≥ 50 years were to receive ranibizumab as per approved label, monthly until maximum stable visual acuity (VA) was achieved (initially, three or more injections may be required). Thereafter, patients were to be monitored monthly for VA and treatment was to be resumed if VA was reduced due to disease activity.ResultsOf the 936 patients treated with ranibizumab at least once during the study, 823/113 were unilaterally/bilaterally (not simultaneously) treated . The mean (SD) number of ranibizumab injections during the study was 5.4 (2.9)/10.6 (5.0) injections in uni/bilaterally treated patients. Three systemic drug-related adverse events (AEs) (all serious, all in unilaterally treated patients) and 18 systemic AE of special interest (AESIs) (11 serious, 16/2 in unilaterally/bilaterally treated patients) occurred during the study. The annual incidence rate (AIR) (events/1000 person-years) for systemic drug-related AEs, considering a 15-day/30-day risk period, 11.0/8.5 for unilaterally treated patients. Considering the same risk period, the AIR (events/1000 person-years) for systemic AESIs for unilaterally treated patients was 22.1/19.9. Considering a 30-day risk period, the AIR (events/1000 treated eye-years) of ocular drug-related AEs was 23 and AESIs was 11.5.ConclusionsThe low incidence of AEs and AESIs demonstrated the good safety and tolerability of ranibizumab in unilaterally/bilaterally treated patients with nAMD in this real-world setting.
Measuring e-cigarette addiction among adolescents
Authors: Vogel Erin A , Prochaska Judith J , Rubinstein Mark L 
Published: May 2019

Background and objectivesWith high rates of use and uncertain consequences, valid electronic cigarette (e-cigarette) use frequency and addiction measures for adolescents are needed. This cross-sectional study examined correlations for multiple measures of adolescent e-cigarette use with nicotine exposure quantified with salivary cotinine levels.MethodsAdolescents (N=173, age 13–18) who reported past-month e-cigarette use were recruited from the San Francisco Bay Area. Participants self-reported: (1) days of e-cigarette use in a typical month, (2) number of e-cigarette sessions in a typical day (sessions per day; SPD) and the (3) E-Cigarette Addiction Severity Index (EASI). Participants also completed the 10-item Penn State Electronic Cigarette Dependence Index (ECDI), which we examined in full and as a 2-item Heaviness of Vaping Index (HVI; the sum of the ECDI items on use frequency and time to first vaping on wakening). Sessions per month (SPM) were calculated using days per month and SPD. Cotinine levels, SPD and SPM were log-transformed.ResultsAmong frequency measures, SPM correlated most strongly with cotinine (r=0.59), followed closely by days per month (r=0.58) and SPD (r=0.57), p<0.001. Among dependence measures, the EASI correlated most strongly with cotinine (r=0.51), closely followed by the ECDI and HVI (r’s=0.50), all p’s<0.001.ConclusionsAdolescents’ reports of frequency of e-cigarette use and degree of addiction correlated significantly with cotinine as a biomarker of nicotine exposure. We recommend the EASI and days per month as brief general measures. SPM and the ECDI are more extensive measures that may yield a more nuanced understanding of use.
Immune Suppression by PD-L2 against Spontaneous and Treatment-Related Antitumor Immunity
Authors: Tanegashima Tokiyoshi , Togashi Yosuke , Azuma Koichi , Kawahara Akihiko , Ideguchi Ko , Sugiyama Daisuke , Kinoshita Fumio , Akiba Jun , Kashiwagi Eiji , Takeuchi Ario , Irie Takuma , Tatsugami Katsunori , Hoshino Tomoaki , Eto Masatoshi , Nishikawa Hiroyoshi 
Published: May 2019

Abstract

Purpose:
To evaluate the detailed immunosuppressive role(s) of PD-L2 given that its detailed role(s) remains unclear in PD-1 signal blockade therapy in animal models and humans.

Experimental Design:
We generated mouse cell lines harboring various status of PD-L1/PD-L2 and evaluated the tumor growth and phenotypes of tumor-infiltrated lymphocytes using several PD-1 signal blockades in animal models. In humans, the correlation between immune-related gene expression and CD274 (encoding PD-L1) or PDCD1LG2 (encoding PD-L2) was investigated using The Cancer Genome Atlas (TCGA) datasets. In addition, PD-L1 or PD-L2 expression in tumor cells and CD8+ T-cell infiltration were assessed by IHC.

Results:
In animal models, we showed that PD-L2 expression alone or simultaneously expressed with PD-L1 in tumor cells significantly suppressed antitumor immune responses, such as tumor antigen–specific CD8+ T cells, and was involved in the resistance to treatment with anti-PD-L1 mAb alone. This resistance was overcome by anti-PD-1 mAb or combined treatment with anti-PD-L2 mAb. In clinical settings, antitumor immune responses were significantly correlated with PD-L2 expression in the tumor microenvironment in renal cell carcinoma (RCC) and lung squamous cell carcinoma (LUSC).

Conclusions:
We propose that PD-L2 as well as PD-L1 play important roles in evading antitumor immunity, suggesting that PD-1/PD-L2 blockade must be considered for optimal immunotherapy in PD-L2–expressing cancers, such as RCC and LUSC.
Abstract SY08-01: Cancer in immunosuppressed populations: Epidemiologic clues to causation
Authors: Engels Eric A. 
Published: May 2019

Abstract
Epidemiologic studies of immunosuppressed populations (HIV-infected people and solid organ transplant recipients) can identify candidate malignancies where infection, immunity, and inflammation are likely to be etiologically important. Such studies have revealed markedly elevated risk for cancers linked to oncogenic viral infections, e.g., Kaposi sarcoma (caused by human herpesvirus 8), some non-Hodgkin lymphoma subtypes and Hodgkin lymphoma (Epstein Barr virus), anogenital cancers (human papillomavirus), and liver cancer (hepatitis B and C viruses). For these cancers, the heightened risk arises from a high prevalence of viral infection and/or loss of immune control of the infection. In contrast, risk is not elevated in immunosuppressed populations for common malignancies not strongly linked to infection (e.g., colon, prostate, and breast cancers), arguing against a more general role for immune surveillance in protecting healthy people from cancer. For a few remaining cancers, an elevated risk is observed among both HIV-infected people and transplant recipients, but the increase is not as great as for malignancies known to be caused by viruses, or data are less clearcut. Examples include various skin cancers, lung cancer, and multiple myeloma. These increased risks suggest that specific infections (with either a known or unknown agent) or altered immunity are relevant for development of these malignancies. Another possibility is that repeated or chronic infections with diverse microbes, or chronic inflammation, play a role.
Citation Format: Eric A. Engels. Cancer in immunosuppressed populations: Epidemiologic clues to causation [abstract]. In: Proceedings of the AACR 101st Annual Meeting 2010; 2010 Apr 17-21; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2010;70(8 Suppl):Abstract nr SY08-01