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  Subjects -> CHEMISTRY (Total: 762 journals)
    - ANALYTICAL CHEMISTRY (45 journals)
    - CHEMISTRY (527 journals)
    - CRYSTALLOGRAPHY (22 journals)
    - ELECTROCHEMISTRY (24 journals)
    - INORGANIC CHEMISTRY (40 journals)
    - ORGANIC CHEMISTRY (40 journals)
    - PHYSICAL CHEMISTRY (64 journals)

CHEMISTRY (527 journals)                  1 2 3 4 5 6 | Last

Accreditation and Quality Assurance: Journal for Quality, Comparability and Reliability in Chemical Measurement     Hybrid Journal   (30 followers)
ACS Catalysis     Full-text available via subscription   (21 followers)
ACS Chemical Neuroscience     Full-text available via subscription   (10 followers)
ACS Combinatorial Science     Full-text available via subscription   (6 followers)
ACS Macro Letters     Full-text available via subscription   (16 followers)
ACS Medicinal Chemistry Letters     Full-text available via subscription   (16 followers)
ACS Nano     Full-text available via subscription   (155 followers)
ACS Photonics     Full-text available via subscription   (1 follower)
ACS Synthetic Biology     Full-text available via subscription   (7 followers)
Acta Chemica Iasi     Open Access  
Acta Chimica Slovaca     Open Access   (5 followers)
Acta Chromatographica     Full-text available via subscription   (9 followers)
Acta Facultatis Medicae Naissensis     Open Access   (1 follower)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (2 followers)
adhäsion KLEBEN & DICHTEN     Hybrid Journal   (1 follower)
Adhesion Adhesives & Sealants     Hybrid Journal   (3 followers)
Adsorption Science & Technology     Full-text available via subscription   (5 followers)
Advanced Functional Materials     Hybrid Journal   (29 followers)
Advances in Chemical Engineering and Science     Open Access   (19 followers)
Advances in Chemical Science     Open Access   (6 followers)
Advances in Colloid and Interface Science     Full-text available via subscription   (12 followers)
Advances in Drug Research     Full-text available via subscription   (13 followers)
Advances in Fluorine Science     Full-text available via subscription   (6 followers)
Advances in Fuel Cells     Full-text available via subscription   (10 followers)
Advances in Heterocyclic Chemistry     Full-text available via subscription   (6 followers)
Advances in Materials Physics and Chemistry     Open Access   (7 followers)
Advances in Nanoparticles     Open Access   (9 followers)
Advances in Organometallic Chemistry     Full-text available via subscription   (7 followers)
Advances in Polymer Science     Hybrid Journal   (35 followers)
Advances in Protein Chemistry     Full-text available via subscription   (4 followers)
Advances in Protein Chemistry and Structural Biology     Full-text available via subscription   (8 followers)
Advances in Quantum Chemistry     Full-text available via subscription   (3 followers)
African Journal of Chemical Education     Open Access  
African Journal of Pure and Applied Chemistry     Open Access  
Afrique Science : Revue Internationale des Sciences et Technologie     Open Access  
Agrokémia és Talajtan     Full-text available via subscription   (2 followers)
Alchemy     Open Access   (2 followers)
Alkaloids: Chemical and Biological Perspectives     Full-text available via subscription   (3 followers)
AMB Express     Open Access   (1 follower)
Ambix     Hybrid Journal   (3 followers)
American Journal of Applied Sciences     Open Access   (27 followers)
American Journal of Biochemistry and Biotechnology     Open Access   (80 followers)
American Journal of Biochemistry and Molecular Biology     Open Access   (7 followers)
American Journal of Chemistry     Open Access   (14 followers)
American Journal of Plant Physiology     Open Access   (9 followers)
American Mineralogist     Full-text available via subscription   (2 followers)
Analyst     Full-text available via subscription   (33 followers)
Angewandte Chemie     Hybrid Journal   (12 followers)
Angewandte Chemie International Edition     Hybrid Journal   (142 followers)
Annales UMCS, Chemia     Open Access   (2 followers)
Annual Reports in Computational Chemistry     Full-text available via subscription   (1 follower)
Annual Reports Section A (Inorganic Chemistry)     Full-text available via subscription   (2 followers)
Annual Reports Section B (Organic Chemistry)     Full-text available via subscription   (4 followers)
Annual Review of Chemical and Biomolecular Engineering     Full-text available via subscription   (8 followers)
Annual Review of Food Science and Technology     Full-text available via subscription   (11 followers)
Anti-Infective Agents     Hybrid Journal   (1 follower)
Applied Organometallic Chemistry     Hybrid Journal   (3 followers)
Applied Spectroscopy     Full-text available via subscription   (11 followers)
Applied Surface Science     Hybrid Journal   (13 followers)
Arabian Journal of Chemistry     Full-text available via subscription   (5 followers)
ARKIVOC     Open Access   (1 follower)
Asian Journal of Biochemistry     Open Access   (1 follower)
Australian Journal of Chemistry     Hybrid Journal   (4 followers)
Autophagy     Full-text available via subscription  
Avances en Quimica     Open Access   (1 follower)
Biocell     Open Access  
Biochemical Pharmacology     Hybrid Journal   (5 followers)
Biochemistry     Full-text available via subscription   (122 followers)
Biochemistry Insights     Open Access   (3 followers)
Biochemistry Research International     Open Access   (3 followers)
BioChip Journal     Hybrid Journal   (1 follower)
Bioinorganic Chemistry and Applications     Open Access   (4 followers)
Biointerface Research in Applied Chemistry     Open Access   (1 follower)
Biointerphases     Open Access  
Biomacromolecules     Full-text available via subscription   (16 followers)
Biomass Conversion and Biorefinery     Partially Free   (5 followers)
Biomedical Chromatography     Hybrid Journal   (7 followers)
Biomolecular NMR Assignments     Hybrid Journal   (2 followers)
BioNanoScience     Partially Free   (4 followers)
Bioorganic & Medicinal Chemistry     Hybrid Journal   (26 followers)
Bioorganic & Medicinal Chemistry Letters     Hybrid Journal   (20 followers)
Bioorganic Chemistry     Hybrid Journal   (5 followers)
Biopolymers     Hybrid Journal   (12 followers)
Biosensors     Open Access   (3 followers)
Biotechnic and Histochemistry     Hybrid Journal   (1 follower)
Boletin de la Sociedad Chilena de Quimica     Open Access  
Bulletin of the Chemical Society of Ethiopia     Open Access   (1 follower)
Bulletin of the Chemical Society of Japan     Full-text available via subscription   (11 followers)
Canadian Association of Radiologists Journal     Full-text available via subscription   (3 followers)
Canadian Journal of Chemistry     Full-text available via subscription   (6 followers)
Canadian Mineralogist     Full-text available via subscription   (1 follower)
Carbohydrate Research     Hybrid Journal   (10 followers)
Carbon     Hybrid Journal   (33 followers)
Catalysis for Sustainable Energy     Open Access   (1 follower)
Catalysis Reviews: Science and Engineering     Hybrid Journal   (3 followers)
Catalysis Science and Technology     Free   (3 followers)
Catalysis Surveys from Asia     Hybrid Journal   (3 followers)
Catalysts     Open Access   (5 followers)
Cellulose     Hybrid Journal   (4 followers)
Central European Journal of Chemistry     Hybrid Journal   (5 followers)

        1 2 3 4 5 6 | Last

Biocell    Follow    
  This is an Open Access Journal Open Access journal
     ISSN (Online) 0327-9545
     Published by SciELO Homepage  [681 journals]   [SJR: 0.232]   [H-I: 17]
  • Age related interaction of dopamine and serotonin synthesis in striatal
           synaptosomes
    • Abstract: Tyrosine hydroxylase and tryptophan hydroxylase are key rate limiting enzymes in the biosyn-thesis of dopamine and serotonin, respectively. Since both enzymes are active in striatum, and affected by age, this study was undertaken to investigate interaction between dopamine and serotonin synthesis in brain striatal synaptosomes of aging rat. Male Wistar rats (3 and 30 month old) were killed by decapitation and brain striatal synaptosomes were prepared by discontinuous Ficoll/sucrose gradient technique. Synaptosomes were incubated in the presence of added pargiline (monoamineoxidase inhibitor), dopamine or serotonin synthesized during 25 min was measured by HPLC, employing electrochemical detection. Dopamine synthesis in synaptosomes prepared from young animals was markedly inhibited by addition of 5 μM serotonin concentrations (30%) and increasing serotonin concentrations up to 50 μM caused only a smaller additional inhibition. Dopamine synthesis in synaptosomes obtained from old rats was significantly lower than that of youg animals and addition of serotonin concentrations up to 50 μM had little effect on these preparations. In case of serotonin synthesis, exogenously added 5 μM dopamine inhibited serotonin synthesis in the synaptosomes of both ages by about 40%, whereas with higher concentration of dopamine (10-50 μM) the rate of inhibition was highly pronounced in old rats as compared to that of young animals. It is concluded that dopamine and serotonin interaction may be significant, and that these should be considered in long-term treatments of Parkinson’s disease with L-DOPA.
       
  • Autophagy, apoptosis and organelle features during cell exposure to
           cadmiumc
    • Abstract: Cadmium (Cd) induces several effects in different tissues, but our knowledge of the toxic effects on organelles is insufficient. To observe the progression of Cd effects on organelle structure and function, HuH-7 cells (human hepatic carcinoma cell line) were exposed to CdCl2 in increasing concentrations (1 μM - 20 μM) and exposure times (2 h - 24 h). During Cd treatment, the cells exhibited a progressive decrease in viability that was both time- and dose-dependent. Cd treated cells displayed progressive morphological changes that included cytoplasm retraction and nuclear condensation preceding a total loss of cell adhesion. Treatment with 10 μM for 12 h led to irreversible damages. Before these drastic and irreparable damages, treated cells (5 μM for 12 h) presented a progressive loss of mitochondrial function and cytoplasm acidification as well as dysfunction and disorganization of microfilaments and endoplasmic reticulum. These damages led to the induction of apoptotic events and an increase in autophagic bodies in the cytoplasm. These results revealed that Cd affects multiple intra-cellular targets that induce alterations in the mitochondria, cytoskeleton, endoplasmic reticulum and acidic compartments, ultimately culminating in cell death via apoptotic and autophagic pathways.
       
  • Creatine supplementation in trained rats causes changes in myenteric
           neurons and intestinal wall morphometry
    • Abstract: Creatine is widely used by athletes as an ergogenic resource. The aim of this study was to evaluate the influence of creatine supplementation on the duodenum of rats submitted to physical training. The number and myenteric neuronal cell bodies as well mucosal and muscular tunic morphometry were evaluated. Control animals received a standard chow for 8 weeks, and the treated ones received the standard chow for 4 weeks and were later fed with the same chow but added with 2% creatine. Animals were divided in groups: sedentary, sedentary supplemented with creatine, trained and trained supplemented with creatine. The training consisted in treadmill running for 8 weeks. Duodenal samples were either processed for whole mount preparations or for paraffin embedding and hematoxylin-eosin staining for histological and morphometric studies of the mucosa, the muscular tunic and myenteric neurons. It was observed that neither creatine nor physical training alone promoted alterations in muscular tunic thickness, villus height or crypts depth, however, a reduction in these parameters was observed when both were associated. The number of myenteric neurons was unchanged, but the neuronal cell body area was reduced in trained animals but not when training and creatine was associated, suggesting a neuroprotector role of this substance.
       
  • Confocal laser scanning microscopy and immunohistochemistry of cerebellar
           Lugaro cells
    • Abstract: The present paper shows by means of confocal laser scanning microscopy the immunoreactivity of rat cerebellar Lugaro cells for calbindin, synapsin-I, PSD-95, GluR1, CaMKII alpha, and N-cadherin. Lugaro cells were easily characterized by their location beneath Purkinje cells. Calbindin revealed immunoreactivity in the cell body, and the axonal and dendritic processes. Synapsin-I labelled the presynaptic endings on Lugaro cells. Synapsin-I and PSD-95 immunoreactivity demonstrated the localization of presynaptic and postsynaptic endings surrounding cell soma, corresponding to afferent extrinsic and intrinsic cerebellar fibers. GluR1 immunoreactivity of the soma and cell processes indicates that Lugaro cells have functional ionotropic glutamate receptors that regulate calcium levels. CaMKII alpha immunoreactivity of Lugaro cell soma and processes suggest its participation as a molecular switch for long-term information storage, and serving as a molecular basis of long-term synaptic memory. N-cadherin immunoreactivity was correlated with somato-somatic and somato-dendritic junctions between Lugaro cells and their synaptic connections.
       
  • Post-treatment with plant extracts used in Brazilian folk medicine caused
           a partial reversal of the antiproliferative effect of glyphosate in the
           Allium cepa test
    • Abstract: Species of the genus Psychotria are used for multiple purposes in Brazilian folk medicine, either as water infusions, baths or poultices. This study was aimed to evaluate the genotoxic and antiproliferative effects of infusions of Psychotria brachypoda and P. birotula on the Allium cepa test. Exposure to distilled water was used as a negative control, while exposure to glyphosate was used as a positive control. The interaction of extracts (as a post-treatment) with the effects of glyphosate was also studied. Results showed that glyphosate and the extracts of both P. brachypoda and P. birotula reduced the mitotic index as compared with the negative control (distilled water). Surprisingly, however, both extracts from P. brachypoda and P. birotula caused a partial reversal of the antiproliferative effect of glyphosate when used as a post-treatment. Glyphosate also induced the highest number of cells with chromosomal alterations, which was followed by that of P. birotula extracts. However, the extracts from P. brachypoda did not show any significant genotoxic effect. Post-treatment of glyphosate-treated samples with distilled water allowed a partial recovery of the genotoxic effect of glyphosate, and some of the Psychotria extracts also did so. Notably, post-treatment of glyphosate-treated samples with P. brachypoda extracts induced a statistically significant apoptotic effect. It is concluded that P. brachypoda extracts show antiproliferative effects and are not genotoxic, while extracts of P. birotula show a less potent antiproliferative effect and may induce chromosomal abnormalities. The finding of a partial reversion of the effects of glyphosate by a post-treatment with extracts from both plants should be followed up.
       
 
 
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