Tag: M.W=100-150

Islam, Jahidul published the artcileDevelopment of a rational framework for the therapeutic efficacy of fecal microbiota transplantation for calf diarrhea treatment, HPLC of Formula: 63-68-3, the publication is Microbiome (2022), 10(1), 31, database is CAplus and MEDLINE.

Establishing fecal microbiota transplantation (FMT) to prevent multifactorial diarrhea in calves is challenging because of the differences in farm management practices, the lack of optimal donors, and recipient selection. In this study, the underlying factors of successful and unsuccessful FMT treatment cases are elucidated, and the potential markers for predicting successful FMT are identified using fecal metagenomics via 16S rRNA gene sequencing, fecal metabolomics via capillary electrophoresis time-of-flight mass spectrometry, and machine learning approaches. Specifically, 20 FMT treatment cases, in which feces from healthy donors were intrarectally transferred into recipient diarrheal calves, were conducted with a success rate of 70%. Selenomonas was identified as a microorganism genus that showed significant donor-recipient compatibility in successful FMT treatments. A strong pos. correlation between the microbiome and metabolome data, which is a prerequisite factor for FMT success, was confirmed by Procrustes anal. in successful FMT (r = 0.7439, P = 0.0001). Addnl., weighted gene correlation network anal. confirmed the pos. or neg. correlated pairs of bacterial taxa (family Veillonellaceae) and metabolomic features (i.e., amino acids and short-chain fatty acids) responsible for FMT success. Further anal. aimed at establishing criteria for donor selection identified the genus Sporobacter as a potential biomarker in successful donor selection. Low levels of metabolites, such as glycerol 3-phosphate, dihydroxyacetone phosphate, and isoamylamine, in the donor or recipients prior to FMT, are predicted to facilitate FMT. Overall, we provide the first substantial evidence of the factors related to FMT success or failure; these findings could improve the design of future microbial therapeutics for treating diarrhea in calves.

Microbiome published new progress about 63-68-3. 63-68-3 belongs to catalysis-chemistry, auxiliary class Natural product, name is (S)-2-Amino-4-(methylthio)butanoic acid, and the molecular formula is C5H11NO2S, HPLC of Formula: 63-68-3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Wu, Yongjun published the artcileMulti-omics analyses of the mechanism for the formation of soy sauce-like and soybean flavor in Bacillus subtilis BJ3-2, Computed Properties of 63-68-3, the publication is BMC Microbiology (2022), 22(1), 142, database is CAplus and MEDLINE.

Although soy sauce-like flavor and soybean flavor are two key contributors to the flavor of fermented foods, the key compounds of soy sauce-like flavor and soybean flavor and production mechanisms are still poorly understood and need further investigation. In the present study, we found that the Bacillus subtilis (B. subtilis) BJ3-2 strain has various metabolic properties at different temperatures, and the strain cultured at 37¡ãC increased the soybean flavor (a special flavor of ammonia-containing smelly distinct from natto) compared with culturing at 45¡ãC and 53¡ãC. Interestingly, the strain cultured at 45¡ãC and 53¡ãC had a higher soy sauce-like flavor than that in 37¡ãC. Moreover, a comparative transcriptome anal. of the strain cultured at 37¡ãC, 45¡ãC, and 53¡ãC showed transcriptional changes related to secondary metabolites and ABC transporters, which is critical for the amino acid transport and metabolism in B. subtilis. Meanwhile, proteomics and metabolomics profiling showed a marked change in amino acids transport and metabolism In addition, the metabolic anal. revealed a significant metabolic difference (including sulfur metabolism, glutathione metabolism, nicotinate and nicotinamide metabolism, cysteine and methionine metabolism, and pyrimidine metabolism) in the strain cultured at 45¡ãC and 53¡ãC compared to 37¡ãC. To sum, this study used the multi-omics profiling tool to investigate the fermentative strains B. subtilis BJ3-2, thus providing a deeper insight into the mechanism of the formation of soy sauce-like flavor and soybean flavor compounds

BMC Microbiology published new progress about 63-68-3. 63-68-3 belongs to catalysis-chemistry, auxiliary class Natural product, name is (S)-2-Amino-4-(methylthio)butanoic acid, and the molecular formula is C3H5F3O, Computed Properties of 63-68-3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Jones, Peter G. published the artcileMethylthioureas and their morpholine and dioxane adducts; hydrogen-bonding patterns, Recommanded Product: 1,1-Dimethylthiourea, the publication is Acta Crystallographica, Section B: Structural Science, Crystal Engineering and Materials (2013), 69(4), 405-413, database is CAplus and MEDLINE.

The authors have redetermined the known structures of (i) methylthiourea (MTU) and (ii) 1,1-dimethylthiourea (1,1-DMTU), and studied the structure of 1,3-dimethylthiourea (1,3-DMTU), which was however severely disordered. The authors report the structures of crystalline adducts of (iii) MTU with morpholine (1:1), (iv) 1,1-DMTU with 1,4-dioxane (2:1) and (v) 1,3-DMTU with 1,4-dioxane (2:1). Finally, (vi) the authors determined the structure of tetramethylthiourea (TetMTU). (i) In both independent mols. of MTU, the Me group is trans to the C=S group across the C-N bond. The two mols. are connected to form an R₂²(8) dimer by mutual N-H¡¤¡¤¡¤S=C interactions. The packing involves six N-H¡¤¡¤¡¤S=C interactions and is three-dimensional. (ii) The packing of the MTU-morpholine adduct is a layer structure, within which both mols. form linear aggregates parallel to the b axis. (iii) The packing of 1,1-DMTU involves N-H¡¤¡¤¡¤S=C H bonds forming a corrugated layer structure. (iv) In the 2:1 adduct between 1,1-DMTU and 1,4-dioxane, the DMTU mol. occupies a general position whereas the dioxane mol. lies across an inversion center. The crystal packing involves chains of alternating 1,1-DMTU R₂²(8) dimers and dioxanes, both across inversion centers. (v) In the 2:1 adduct between 1,3-DMTU and dioxane, the 1,3-DMTU mol. occupies a general position, while the dioxane mol. lies across an inversion center. One Me group of the DMTU is trans and one cis to the S across the corresponding C-N bond. The mols. form chains of alternating 1,3-DMTU R₂²(8) dimers and dioxanes, both across inversion centers. Crystals of the 2:1 adduct between 1,3-DMTU and morpholine were also obtained, and were isotypic with the dioxane adduct. The morpholine mol. is disordered across the inversion center. (vi) The mol. of TetMTU displays crystallog. 2-fold symmetry. Significant distortions reflect the steric pressure between Me groups trans to S. The packing of TetMTU involves only a weak H bond, C-H_methyl¡¤¡¤¡¤S, which connects the mols. to form layers. Crystallog. data are given.

Acta Crystallographica, Section B: Structural Science, Crystal Engineering and Materials published new progress about 6972-05-0. 6972-05-0 belongs to catalysis-chemistry, auxiliary class Thiourea,Amine,Aliphatic hydrocarbon chain,Amide, name is 1,1-Dimethylthiourea, and the molecular formula is C3H8N2S, Recommanded Product: 1,1-Dimethylthiourea.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Whyte-Fagundes, Paige published the artcilePanx1 channels promote both anti- and pro-seizure-like activities in the zebrafish via p2rx7 receptors and ATP signaling, Application of (S)-2-Amino-4-(methylthio)butanoic acid, the publication is Communications Biology (2022), 5(1), 472, database is CAplus and MEDLINE.

The mol. mechanisms of excitation/inhibition imbalances promoting seizure generation in epilepsy patients are not fully understood. Evidence suggests that Pannexin1 (Panx1), an ATP release channel, modulates the excitability of the brain. In this report, we performed electrophysiol., behavioral, and mol. phenotyping experiments on zebrafish larvae bearing genetic or pharmacol. knockouts of Panx1a and Panx1b channels, each homologous to human PANX1. When Panx1a function is lost, or both channels are under pharmacol. blockade, seizures with ictal-like events and seizure-like locomotion are reduced in the presence of pentylenetetrazol. Transcriptome profiling by RNA-seq demonstrates a spectrum of distinct metabolic and cell signaling states which correlate with the loss of Panx1a. Furthermore, the pro- and anticonvulsant activities of both Panx1 channels affect ATP release and involve the purinergic receptor P2rx7. Our findings suggest a subfunctionalization of Panx1 enabling dual roles in seizures, providing a unique and comprehensive perspective to understanding seizure mechanisms in the context of this channel.

Communications Biology published new progress about 63-68-3. 63-68-3 belongs to catalysis-chemistry, auxiliary class Natural product, name is (S)-2-Amino-4-(methylthio)butanoic acid, and the molecular formula is C12H14O2, Application of (S)-2-Amino-4-(methylthio)butanoic acid.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Fabre, C. published the artcileGem effects: basicity measurement. The doubtful nature of generalities of conformational effects of geminal disubstitution, Recommanded Product: Propane-1,3-diamine dihydrochloride, the publication is Nouveau Journal de Chimie (1980), 4(10), 609-14, database is CAplus.

Geminal disubstitution does not systematically involve a decrease in the distance between the ends of an aliphatic chain. Thus, the pK values of I (R = H, Me) are identical. On the other hand, basicity differences were observed for II (m = 1; R = H, Me); no basicity differences were observed for II (m = 2, 3; R = H, Me).

Nouveau Journal de Chimie published new progress about 10517-44-9. 10517-44-9 belongs to catalysis-chemistry, auxiliary class Salt,Amine,Aliphatic hydrocarbon chain, name is Propane-1,3-diamine dihydrochloride, and the molecular formula is C3H12Cl2N2, Recommanded Product: Propane-1,3-diamine dihydrochloride.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Wang, Chang-Sheng published the artcileRegio- and Stereoselective Synthesis of Enol Carboxylate, Phosphate, and Sulfonate Esters via Iodo(III)functionalization of Alkynes, Related Products of catalysis-chemistry, the publication is Organic Letters (2022), 24(1), 430-434, database is CAplus and MEDLINE.

Synthesis of ¦Â-Iodo(III)enol carboxylates, I (R¹ = Et, Me, Bu, t-Bu; R² = Et, Ph, thiophen-2-yl, etc.; R³ = 4-oxopentanoyl, benzoyl, 2,2-dimethylpropyl, etc.) phosphates, I (R³ = diethoxyphosphoroso, diphenoxyphosphoroso, dimethoxyphosphoroso, diphenylphosphoroso) and tosylates I (R³ = Ts) can be efficiently performed through regio- and stereoselective iodo(III)functionalization of alkynes R¹CCR². The combination of 1,2-benziodoxole, 1-chloro-1,3-dihydro-3,3-bis(trifluoromethyl)- and silver salt has proven to generate a versatile cationic iodine(III) electrophile to activate alkynes and engage various carboxylic acids R⁴COOH (R⁴ = Me, Ph, 2-phenylethenyl, etc.), tri-Et phosphate and p-toluenesulfonic acid as nucleophiles. The ¦Â-iodo(III)enol esters serve as starting materials for the synthesis of multisubstituted alkenes I through sequential cross-coupling of the C-I(III) and C-O bonds.

Organic Letters published new progress about 118-90-1. 118-90-1 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene,Natural product, name is 2-Methylbenzoic acid, and the molecular formula is C12H16N2O2, Related Products of catalysis-chemistry.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Ohtaki, Hitoshi published the artcileIonic equilibriums in mixed solvents. VI. Dissociation constants of aliphatic diamines in water-methanol solutions, HPLC of Formula: 10517-44-9, the publication is Journal of Physical Chemistry (1971), 75(1), 90-2, database is CAplus.

Dissociation constant of protonated 1,2-diaminoethane, 1,3-diaminopropane, and 1,4-diaminobutane have been determined potentiometrically at 25¡ã in various H2O-MeOH mixtures containing 0.1M NaCl as an ionic medium. Ion products, Kw(S), in the mixtures have been calculated and used for calculations of pK’s of the acids, equilibrium of hydronium ions with alkoxonium ions being taken into consideration. Since values of pK2 – pK1 of the diamines have been independent of solvent compositions, interactions between charged sites in a mol. may scarcely be affected with the variation of the solvent composition

Journal of Physical Chemistry published new progress about 10517-44-9. 10517-44-9 belongs to catalysis-chemistry, auxiliary class Salt,Amine,Aliphatic hydrocarbon chain, name is Propane-1,3-diamine dihydrochloride, and the molecular formula is C3H12Cl2N2, HPLC of Formula: 10517-44-9.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Futamura-Takahashi, Junko published the artcileStructure-based design, synthesis, and binding mode analysis of novel and potent chymase inhibitors, Name: O-Isobutylhydroxylamine hydrochloride, the publication is Bioorganic & Medicinal Chemistry Letters (2018), 28(2), 188-192, database is CAplus and MEDLINE.

Based on insight from the x-ray crystal structure of human chymase in complex with compound 1, a lactam carbonyl of the diazepane core was exchanged with O-substituted oxyimino group, leading to amidoxime derivatives This modification resulted in highly potent chymase inhibitors, such as O-phenylamidoxime I. X-ray crystal structure anal. indicated that compound I induced movement of the Leu99 and Tyr94 side chains at the S2 site, and the increase in inhibitory activity of O-Ph amidoxime derivatives suggested that the O-Ph moiety interacted with the Tyr94 residue. Surface plasmon resonance experiments showed that compound I had slower association and dissociation kinetics and the calculated residence time of compound I to human chymase was extended compared to that of amide compound 1.

Bioorganic & Medicinal Chemistry Letters published new progress about 6084-58-8. 6084-58-8 belongs to catalysis-chemistry, auxiliary class Salt,Amine,Aliphatic hydrocarbon chain, name is O-Isobutylhydroxylamine hydrochloride, and the molecular formula is C4H12ClNO, Name: O-Isobutylhydroxylamine hydrochloride.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Zhang, Zeyu published the artcileExplant disinfection with chlorine dioxide promotes adventitious shoot organogenesis in Crassula portulacea via the regulation of reactive oxygen species and related gene expression, SDS of cas: 6972-05-0, the publication is Plant Cell, Tissue and Organ Culture (2021), 146(3), 531-540, database is CAplus.

Abiotic oxidative stress may activate plant organ development and growth. However, this effect is rarely reported for in vitro tissue culture. We report enhanced adventitious shoot formation in Crassula portulacea through the disinfection of explants with an environmentally safe oxidant chlorine dioxide (CD) and explore the involvement of reactive oxygen species (ROS) accumulation and the expression of organogenesis-associated genes. A concentration of 0.62-1.24 mM CD was effective at disinfecting C. portulacea explants within 15 min. Interestingly, the disinfection of explants with CD significantly promoted the formation of adventitious shoots, resulting in a 3-5-fold enhancement of the number of adventitious shoots when compared with the disinfection of explants using 0.1% mercuric chloride. Superoxide anions, hydrogen peroxide and superoxide dismutase increased in the CD treatment, while the enhancements were significantly suppressed when N,N’-dimethylthiourea (DMTU) was applied, indicating that CD-promoted adventitious shoot formation correlates with ROS accumulation. The expression of CpWUS, CpCYCB1 and CpCUC1 was upregulated in explants disinfected with CD, while the application of DMTU significantly suppressed their expression, consistent with adventitious shoot development. These findings present new insights into understanding the physiol. and mol. mechanisms of plant tissue culture and providing an efficient micropropagation protocol for C. portulacea.

Plant Cell, Tissue and Organ Culture published new progress about 6972-05-0. 6972-05-0 belongs to catalysis-chemistry, auxiliary class Thiourea,Amine,Aliphatic hydrocarbon chain,Amide, name is 1,1-Dimethylthiourea, and the molecular formula is C13H9FO2, SDS of cas: 6972-05-0.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Peng, Wentong published the artcileInfluence of fermented feed additive on gut morphology, immune status, and microbiota in broilers, Quality Control of 63-68-3, the publication is BMC Veterinary Research (2022), 18(1), 218, database is CAplus and MEDLINE.

This study examined the effects of a solid-state fermented feed additive (FFA) on the small intestine histol./morphol., immunity and microbiota of broilers. Two hundred eighty-eight day-old Arbor Acre chicks, were randomly assigned to one of four groups (each group has 6 replicates, with each replicate containing 12 chickens). The neg. control (NC; basal diet), the pos. control (PC; basal diet +antibiotic 15 ppm), the fermented feed additive low dose (FFL; basal diet + 0.3 kg/t FFA), and the fermented feed additive high dose (FFH; 3 kg/t FFA) with Lactobacillus casei (L.casei). The study found that the FFH and FFL groups gained more weight (1-21d) and the FFL and PC diets had better feed conversion ratio (P < 0.05) than the NC from 0-42d. The FFH group had higher villus height (P < 0.05) in the duodenum than the PC and villus height to crypt depth ratio VH/CD compared to PC and FFL groups. The FFL chickens had greater (P < 0.05) jejunal and ileal villus height than PC and NC groups resp. The FFL group had a higher ileal VH/CD ratio (P < 0.05). Jejunum VH/CD was higher in FFL and FFH (P < 0.05) than PC (P < 0.05). FFH had a smaller thymus than NC (P < 0.05). FFA diets also increased IL-10 expression (P < 0.05). While IL-1 and TLR4 mRNA expression decreased (P < 0.05) compared to NC. The microbiota anal. showed that the microorganisms that have pathogenic properties such as phylum Delsulfobacterota and class Desulfovibriona and Negativicutes was also significantly reduced in the group treated with FFH and PC while microorganisms having beneficial properties like Lactobacillaceae family, Lactobacillus aviarus genus and Lactobacillus spp were also tended to increase in the FFH and FFL fermented feed groups compared to the PC and NC groups. These findings suggested that the FFA diet may modulate cecal microbiota by reducing pathogenic microorganisms such as phylum Delsulfobacterota and class Desulfovibriona and Negativicutes improve beneficial microorganisms like Lactobacillaceae family, Lactobacillus aviarus genus and Lactobacillus spp. While FFA diet also affect immunity, and gene expression related to immunity.

BMC Veterinary Research published new progress about 63-68-3. 63-68-3 belongs to catalysis-chemistry, auxiliary class Natural product, name is (S)-2-Amino-4-(methylthio)butanoic acid, and the molecular formula is C5H11NO2S, Quality Control of 63-68-3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia