TY  - JOUR
A1  - Tang, Alan T.
A1  - Sullivan, Katie Rose
A1  - Hong, Courtney C.
A1  - Goddard, Lauren M.
A1  - Mahadevan, Aparna
A1  - Ren, Aileen
A1  - Pardo, Heidy
A1  - Peiper, Amy
A1  - Griffin, Erin
A1  - Tanes, Ceylan
A1  - Mattei, Lisa M.
A1  - Yang, Jisheng
A1  - Li, Li
A1  - Mericko-Ishizuka, Patricia
A1  - Shen, Le
A1  - Hobson, Nicholas
A1  - Girard, Romuald
A1  - Lightle, Rhonda
A1  - Moore, Thomas
A1  - Shenkar, Robert
A1  - Polster, Sean P.
A1  - Roedel, Claudia Jasmin
A1  - Li, Ning
A1  - Zhu, Qin
A1  - Whitehead, Kevin J.
A1  - Zheng, Xiangjian
A1  - Akers, Amy
A1  - Morrison, Leslie
A1  - Kim, Helen
A1  - Bittinger, Kyle
A1  - Lengner, Christopher J.
A1  - Schwaninger, Markus
A1  - Velcich, Anna
A1  - Augenlicht, Leonard
A1  - Abdelilah-Seyfried, Salim
A1  - Min, Wang
A1  - Marchuk, Douglas A.
A1  - Awad, Issam A.
A1  - Kahn, Mark L.
T1  - Distinct cellular roles for PDCD10 define a gut-brain axis in cerebral cavernous malformation
JF  - Science Translational Medicine
N2  - Cerebral cavernous malformation (CCM) is a genetic, cerebrovascular disease. Familial CCM is caused by genetic mutations in KRIT1, CCM2, or PDCD10. Disease onset is earlier and more severe in individuals with PDCD10 mutations. Recent studies have shown that lesions arise from excess mitogen-activated protein kinase kinase kinase 3 (MEKK3) signaling downstream of Toll-like receptor 4 (TLR4) stimulation by lipopolysaccharide derived from the gut microbiome. These findings suggest a gut-brain CCM disease axis but fail to define it or explain the poor prognosis of patients with PDCD10 mutations. Here, we demonstrate that the gut barrier is a primary determinant of CCM disease course, independent of microbiome configuration, that explains the increased severity of CCM disease associated with PDCD10 deficiency. Chemical disruption of the gut barrier with dextran sulfate sodium augments CCM formation in a mouse model, as does genetic loss of Pdcd10, but not Krit1, in gut epithelial cells. Loss of gut epithelial Pdcd10 results in disruption of the colonic mucosal barrier. Accordingly, loss of Mucin-2 or exposure to dietary emulsifiers that reduce the mucus barrier increases CCM burden analogous to loss of Pdcd10 in the gut epithelium. Last, we show that treatment with dexamethasone potently inhibits CCM formation in mice because of the combined effect of action at both brain endothelial cells and gut epithelial cells. These studies define a gut-brain disease axis in an experimental model of CCM in which a single gene is required for two critical components: gut epithelial function and brain endothelial signaling.
Y1  - 2019
U6  - https://doi.org/10.1126/scitranslmed.aaw3521
SN  - 1946-6234
SN  - 1946-6242
VL  - 11
IS  - 520
PB  - American Assoc. for the Advancement of Science
CY  - Washington
ER  - 
TY  - JOUR
A1  - Feng, Xiao-Li
A1  - Ni, Wei-Min
A1  - Elge, Stephan
A1  - Müller-Röber, Bernd
A1  - Xu, Zhi-Hong
A1  - Xue, Hong-Wei
T1  - Auxin flow in anther filaments is critical for pollen grain development through regulating pollen mitosis
N2  - It was well known that auxin is critical for anther/pollen grain development, however, the clear distribution and detailed effects of auxin during floral development are still unclear. We have shown here that, through analyzing GUS activities of Arabidopsis lines harboring auxin response elements DR5-GUS, auxin was mainly accumulated in the anther during flower stages 10-12. Further studies employing the indoleacetic acid-lysine synthetase (iaaL) coding gene from Pseudomonas syringae subsp. savastanoi under control of the promoter region of Arabidopsis phosphatidylinositol monophosphate 5-kinase 1 gene, which conducts the anther filament-specific expression, showed that block of auxin flow of filaments resulted in shortened filaments and significantly defective pollen grains. Similar phenotype was observed in tobacco plants transformed with the same construct, confirming the effects of auxin flow in filaments on anther development. Detailed studies further revealed that the meiosis process of pollen grain was normal while the mitosis at later stage was significantly defected, indicating the effects of auxin flow in filaments on pollen grain mitosis process. Analysis employing [C-14]IAA, as well as the observation on the expression of AtPIN1, coding for auxin efflux carrier, demonstrated the presence of polar auxin transport in anther filaments and pollen grains
Y1  - 2006
UR  - http://www.springerlink.com/content/100330
U6  - https://doi.org/10.1007/s11103-006-0005-z
SN  - 0167-4412
ER  - 
TY  - JOUR
A1  - Tian, Guang-Zong
A1  - Hu, Jing
A1  - Zhang, Heng-Xi
A1  - Rademacher, Christoph
A1  - Zou, Xiao-Peng
A1  - Zheng, Hong-Ning
A1  - Xu, Fei
A1  - Wang, Xiao-Li
A1  - Linker, Torsten
A1  - Yin, Jian
T1  - Synthesis and conformational analysis of linear homo- and heterooligomers from novel 2-C-branched sugar amino acids (SAAs)
JF  - Scientific reports
N2  - Sugar amino acids (SAAs), as biologically interesting structures bearing both amino and carboxylic acid functional groups represent an important class of multifunctional building blocks. In this study, we develop an easy access to novel SAAs in only three steps starting from nitro compounds in high yields in analytically pure form, easily available by ceric (IV) mediated radical additions. Such novel SAAs have been applied in the assembly of total nine carbopeptoids with the form of linear homo-and heterooligomers for the structural investigations employing circular dichroism (CD) spectroscopy, which suggest that the carbopeptoids emerge a well-extended, left (or right)-handed conformation similar to polyproline II (PPII) helices. NMR studies also clearly demonstrated the presence of ordered secondary structural elements. 2D-ROESY spectra were acquired to identify i+1NH <-> (C1H)-C-i, (C2H)-C-i correlations which support the conformational analysis of tetramers by CD spectroscopy. These findings provide interesting information of SAAs and their oligomers as potential scaffolds for discovering new drugs and materials.
Y1  - 2018
U6  - https://doi.org/10.1038/s41598-018-24927-6
SN  - 2045-2322
VL  - 8
PB  - Nature Publ. Group
CY  - London
ER  - 
TY  - JOUR
A1  - Yang, Guang
A1  - Zheng, Wei
A1  - Tao, Guoqing
A1  - Wu, Libin
A1  - Zhou, Qi-Feng
A1  - Kochovski, Zdravko
A1  - Ji, Tan
A1  - Chen, Huaijun
A1  - Li, Xiaopeng
A1  - Lu, Yan
A1  - Ding, Hong-ming
A1  - Yang, Hai-Bo
A1  - Chen, Guosong
A1  - Jiang, Ming
T1  - Diversiform and Transformable Glyco-Nanostructures Constructed from Amphiphilic Supramolecular Metallocarbohydrates through Hierarchical Self-Assembly: The Balance between Metallacycles and Saccharides
JF  - ACS nano
N2  - During the past decade, self-assembly of saccharide-containing amphiphilic molecules toward bioinspired functional glycomaterials has attracted continuous attention due to their various applications in fundamental and practical areas. However, it still remains a great challenge to prepare hierarchical glycoassemblies with controllable and diversiform structures because of the complexity of saccharide structures and carbohydrate-carbohydrate interactions. Herein, through hierarchical self-assembly of modulated amphiphilic supramolecular metallocarbohydrates, we successfully prepared various well-defined glyco-nanostructures in aqueous solution, including vesicles, solid spheres, and opened vesicles depending on the molecular structures of metallocarbohydrates. More attractively, these glyco-nanostructures can further transform into other morphological structures in aqueous solutions such as worm-like micelles, tubules, and even tupanvirus-like vesicles (TVVs). It is worth mentioning that distinctive anisotropic structures including the opened vesicles (OVs) and TVVs were rarely reported in glycobased nano-objects. This intriguing diversity was mainly controlled by the subtle structural trade-off of the two major components of the amphiphiles, i.e., the saccharides and metallacycles. To further understand this precise structural control, molecular simulations provided deep physical insights on the morphology evolution and balancing of the contributions from saccharides and metallacycles. Moreover, the multivalency of glyco-nanostructures with different shapes and sizes was demonstrated by agglutination with a diversity of sugarbinding protein receptors such as the plant lectins Concanavalin A (ConA). This modular synthesis strategy provides access to systematic tuning of molecular structure and self-assembled architecture, which undoubtedly will broaden our horizons on the controllable fabrication of biomimetic glycomaterials such as biological membranes and supramolecular lectin inhibitors.
KW  - glycomaterials
KW  - diversiform structures
KW  - hierarchical self-assembly
KW  - metallocarbohydrates
KW  - anisotropic structures
Y1  - 2019
U6  - https://doi.org/10.1021/acsnano.9b07134
SN  - 1936-0851
SN  - 1936-086X
VL  - 13
IS  - 11
SP  - 13474
EP  - 13485
PB  - American Chemical Society
CY  - Washington
ER  - 
TY  - JOUR
A1  - Reichetzeder, Christoph
A1  - Chen, Hong
A1  - Foeller, Michael
A1  - Slowinski, Torsten
A1  - Li, Jian
A1  - Chen, You-Peng
A1  - Lang, Florian
A1  - Hocher, Berthold
T1  - Maternal vitamin D deficiency and fetal programming - lessons learned from humans and mice
JF  - Kidney & blood pressure research : official organ of the Gesellschaft für Nephrologie
N2  - Background/Aims: Cardiovascular disease partially originates from poor environmental and nutritional conditions in early life. Lack of micronutrients like 25 hydroxy vitamin D-3 (25OHD) during pregnancy may be an important treatable causal factor. The present study explored the effect of maternal 25OHD deficiency on the offspring. Methods: We performed a prospective observational study analyzing the association of maternal 25OHD deficiency during pregnancy with birth outcomes considering confounding. To show that vitamin D deficiency may be causally involved in the observed associations, mice were set on either 25OHD sufficient or insufficient diets before and during pregnancy. Growth, glucose tolerance and mortality was analyzed in the F1 generation. Results: The clinical study showed that severe 25OHD deficiency was associated with low birth weight and low gestational age. ANCOVA models indicated that established confounding factors such as offspring sex, smoking during pregnancy and maternal BMI did not influence the impact of 25OHD on birth weight. However, there was a significant interaction between 25OHD and gestational age. Maternal 25OHD deficiency was also independently associated with low APGAR scores 5 minutes postpartum. The offspring of 25OHD deficient mice grew slower after birth, had an impaired glucose tolerance shortly after birth and an increased mortality during follow-up. Conclusions: Our study demonstrates an association between maternal 25OHD and offspring birth weight. The effect of 25OHD on birth weight seems to be mediated by vitamin D controlling gestational age. Results from an animal experiment suggest that gestational 25OHD insufficiency is causally linked to adverse pregnancy outcomes. Since birth weight and prematurity are associated with an adverse cardiovascular outcome in later life, this study emphasizes the need for novel monitoring and treatment guidelines of vitamin D deficiency during pregnancy.
KW  - Vitamin D
KW  - Birth weight
KW  - Preterm delivery
KW  - Fetal programming
KW  - Glucose tolerance
KW  - Cardiovascular diseases
Y1  - 2014
U6  - https://doi.org/10.1159/000355809
SN  - 1420-4096
SN  - 1423-0143
VL  - 39
IS  - 4
SP  - 315
EP  - 329
PB  - Karger
CY  - Basel
ER  - 
TY  - JOUR
A1  - Li, Jian
A1  - Chen, You-Peng
A1  - Dong, Yun-Peng
A1  - Yu, Cal-Hong
A1  - Lu, Yong-Ping
A1  - Xiao, Xiao-Min
A1  - Hocher, Berthold
T1  - The impact of umbilical blood flow regulation on fetal development differs in diabetic and non-diabetic pregnancy
JF  - Kidney & blood pressure research : official organ of the Gesellschaft für Nephrologie
N2  - Background/Aims: Diabetes is well-known to influence endothelial function. Endothelial function and blood flow regulation might be different in diabetic and non-diabetic pregnancy. However, the impact of umbilical blood flow regulation in gestational diabetes on fetal development is unknown so far. Methods: In a prospective birth cohort study, we analyzed the association of the umbilical artery Doppler indices (pulsatility index, resistance index and systolic/diastolic ratio) and fetal size measures (biparietal diameter, head circumference, abdominal circumference, femur length and birth weight) in 519 non-gestational diabetes mellitus pregnancies (controls) and 226 gestational diabetes mellitus pregnancies in middle (day 160.32 +/- 16.29 of gestation) and late (day 268.12 +/- 13.04 of gestation) pregnancy. Results: Multiple regression analysis considering confounding factors (gestational day of ultrasound examination, offspring sex, maternal body mess index before pregnancy, maternal age at delivery, maternal body weight at delivery and maternal hypertension) showed that umbilical artery Doppler indices (pulsatility index, resistance index and systolic/diastolic ratio) were associated with fetal head circumference and femur length in middle gestational diabetes mellitus pregnancy but not in non-gestational diabetes mellitus pregnancy. Head circumference, biparietal diameter, abdominal circumference and femur length in mid gestation were smaller in fetus of gestational diabetes mellitus pregnancy versus non-gestational diabetes mellitus pregnancy. In contrast to non-gestational diabetes mellitus pregnancy in late gestation, umbilical artery Doppler indices in gestational diabetes mellitus pregnancy were not associated with ultrasound measures of fetal growth. Birth weight was slightly increased in gestational diabetes mellitus pregnancy as compared to non-gestational diabetes mellitus pregnancy. Conclusions: The impact of umbilical blood flow on fetal growth is time dependent in human gestational diabetes mellitus and non-gestational diabetes mellitus pregnancy. In gestational diabetes mellitus pregnancy umbilical blood flow is critical for organ development in much earlier stages of pregnancy as compared to non-gestational diabetes mellitus pregnancy. The physiological and molecular pathways why there is a catch up growth in later times of gestational diabetes mellitus pregnancy resulting in larger gestational diabetes mellitus babies at birth needs to be addressed in further studies.
KW  - Umbilical artery Doppler
KW  - Blood flow resistance
KW  - Gestational diabetes mellitus
KW  - Fetal development
Y1  - 2014
U6  - https://doi.org/10.1159/000355815
SN  - 1420-4096
SN  - 1423-0143
VL  - 39
IS  - 4
SP  - 369
EP  - 377
PB  - Karger
CY  - Basel
ER  - 
TY  - JOUR
A1  - Kumar, Pankaj
A1  - Gale, Stephan W.
A1  - Kocyan, Alexander
A1  - Fischer, Gunter A.
A1  - Averyanov, Leonid
A1  - Borosova, Renata
A1  - Bhattacharjee, Avishek
A1  - Li, Ji-Hong
A1  - Pang, Kuen Shum
T1  - Gastrochilus kadooriei (Orchidaceae), a new species from Hong Kong, with notes on allied taxa in section Microphyllae found in the region
JF  - Phytotaxa : a rapid international journal for accelerating the publication of botanical taxonomy
N2  - A new species, Gastrochilus kadooriei, is described from Hong Kong. Notes are presented on its distribution, ecology and conservation status, and its distinguishing features are compared with those of allied taxa. Gastrochilus jeitouensis is reduced to the synonymy of G. distichus, and a lectotype is assigned for G. pseudodistichus. Gastrochilus fuscopunctatus is reinstated as an accepted species. Dichotomous keys to this taxonomically difficult group of morphologically similar species are presented.
Y1  - 2014
SN  - 1179-3155
SN  - 1179-3163
VL  - 164
IS  - 2
SP  - 91
EP  - 103
PB  - Magnolia Press
CY  - Auckland
ER  - 
TY  - JOUR
A1  - Pan, Jinger
A1  - Song, Shuang
A1  - Su, Mengmeng
A1  - McBride, Catherine
A1  - Liu, Hongyun
A1  - Zhang, Yuping
A1  - Li, Hong
A1  - Shu, Hua
T1  - On the relationship between phonological awareness, morphological awareness and Chinese literacy skills: evidence from an 8-year longitudinal study
JF  - Developmental science.
Y1  - 2016
U6  - https://doi.org/10.1111/desc.12356
SN  - 1363-755X
SN  - 1467-7687
VL  - 19
SP  - 982
EP  - 991
PB  - Wiley-Blackwell
CY  - Hoboken
ER  - 
TY  - CHAP
A1  - Chen, Hong
A1  - Reichetzeder, Christoph
A1  - Föller, Michael
A1  - Slowinski, Torsten
A1  - Li, Jian
A1  - Chen, You-Peng
A1  - Lang, Florian
A1  - Hocher, Berthold
T1  - Maternal vitamin D deficiency and fetal programming
T2  - Acta physiologica : official journal of the Federation of European Physiological Societies
Y1  - 2015
SN  - 1748-1708
SN  - 1748-1716
VL  - 213
SP  - 155
EP  - 156
PB  - Wiley-Blackwell
CY  - Hoboken
ER  - 
TY  - JOUR
A1  - Ran, Niva A.
A1  - Roland, Steffen
A1  - Love, John A.
A1  - Savikhin, Victoria
A1  - Takacs, Christopher J.
A1  - Fu, Yao-Tsung
A1  - Li, Hong
A1  - Coropceanu, Veaceslav
A1  - Liu, Xiaofeng
A1  - Bredas, Jean-Luc
A1  - Bazan, Guillermo C.
A1  - Toney, Michael F.
A1  - Neher, Dieter
A1  - Thuc-Quyen Nguyen, 
T1  - Impact of interfacial molecular orientation on radiative recombination and charge generation efficiency
JF  - Nature Communications
N2  - A long standing question in organic electronics concerns the effects of molecular orientation at donor/acceptor heterojunctions. Given a well-controlled donor/acceptor bilayer system, we uncover the genuine effects of molecular orientation on charge generation and recombination. These effects are studied through the point of view of photovoltaics-however, the results have important implications on the operation of all optoelectronic devices with donor/ acceptor interfaces, such as light emitting diodes and photodetectors. Our findings can be summarized by two points. First, devices with donor molecules face-on to the acceptor interface have a higher charge transfer state energy and less non-radiative recombination, resulting in larger open-circuit voltages and higher radiative efficiencies. Second, devices with donor molecules edge-on to the acceptor interface are more efficient at charge generation, attributed to smaller electronic coupling between the charge transfer states and the ground state, and lower activation energy for charge generation.
Y1  - 2017
U6  - https://doi.org/10.1038/s41467-017-00107-4
SN  - 2041-1723
VL  - 8
PB  - Nature Publ. Group
CY  - London
ER  - 
TY  - JOUR
A1  - Rudaya, Natalia
A1  - Nazarova, Larisa B.
A1  - Novenko, Elena
A1  - Andreev, Andrei
A1  - Kalugin, Ivan
A1  - Daryin, Andrei
A1  - Babich, Valery
A1  - Li, Hong-Chun
A1  - Shilov, Pavel
T1  - Quantitative reconstructions of mid- to late holocene climate and vegetation in the north-eastern altai mountains recorded in lake teletskoye
JF  - Global and planetary change
N2  - We report the first high-resolution (20-50 years) mid- to late Holocene pollen records from Lake Teletskoye, the largest lake in the Altai Mountains, in south-eastern West Siberia. Generally, the mid- to late Holocene (the last 4250 years) vegetation of the north-eastern Altai, as recorded in two studied sediment cores, is characterised by Siberian pine-spruce-fir forests that are similar to those of the present day. A relatively cool and dry interval with July temperatures lower than those of today occurred between 3.9 and 3.6 ka BP. The widespread distribution of open, steppe-like communities with Artemisia, Chenopodiaceae and Cyperaceae reflects maximum deforestation during this interval. After ca. 3.5 ka BP, the coniferous mountain taiga spread significantly, with maximum woody coverage and taiga biome scores between ca. 2.7 and 1.6 ka BP. This coincides well with the highest July temperature (approximately 1 degrees C higher than today) intervals. A short period of cooling about 13-1.4 ka BP could have been triggered by the increased volcanic activity recorded across the Northern Hemisphere. A new period of cooling started around 1100-1150 CE, with the minimum July temperatures occurring between 1450 and 1800 CE. (C) 2016 Elsevier B.V. All rights reserved.
KW  - Mid-late Holocene
KW  - Siberia
KW  - Altai
KW  - Pollen
KW  - Climate
KW  - Vegetation
KW  - Transfer function
KW  - Woody coverage
Y1  - 2016
U6  - https://doi.org/10.1016/j.gloplacha.2016.04.002
SN  - 0921-8181
SN  - 1872-6364
VL  - 141
SP  - 12
EP  - 24
PB  - Elsevier
CY  - Amsterdam
ER  -