Regio- and Chemo-selective C-H Arylation of 3-Bromothiophene: A Synthesis Shortcut to Versatile π-Conjugated Building Blocks for Optoelectronic Materials.

Unlike traditional multi-step synthetic approaches, we developed a single-step synthesis of versatile π-conjugated building blocks bearing post-functionalizable C-H and C-Br bonds. Direct C-H arylation of 3-bromothiophene with various iodo(hetero)aryls was successfully carried out with good regio- and chemo-selectivity. Under optimized reaction conditions, 20 new compounds were facilely prepared in yields up to 91 %.

Unveiling high-power and high-safety lithium-ion battery separator based on interlayer of ZIF-67/cellulose nanofiber with electrospun poly(vinyl alcohol)/melamine nonwoven membranes.

Due to the poor thermal stability of conventional separators, lithium-ion batteries require a suitable separator to maintain system safety for long-term cycling performance. It must have high porosity, superior electrolyte uptake ability, and good ion-conducting properties even at high temperatures. In this work, we demonstrate a novel composite membrane based on sandwiching of zeolitic imidazole frameworks-67 decorated cellulose acetate nanofibers (ZIF-67@CA) with electrospun poly(vinyl alcohol)/melamine (denoted as PVAM) nonwoven membranes.

Hole-Transporting Materials based on Oligo(hetero)aryls with a Naphthodithiophene Core - Succinct Synthesis by Twofold Direct C-H Olefination.

This work demonstrated the first synthetic application of direct C-H olefinations in the step-saving preparation of various hole-transporting materials (HTM) for efficient perovskite solar cells (PSC). Cross-dehydrogenative couplings of naphthodithiophene (NDT) with vinyl arenes under palladium-catalysis facilely generated various new oligo(hetero)aryls with internal alkenes. Reaction conditions were optimized, which gave the product isolated yields of up to 71 % with high (E)-stereoselectivity.

Combining the advantages of 1,3,4-oxadiazole and tetrazole enables achieving high-energy insensitive materials.

Combining the advantages of energetic heterocycles to achieve high-energy insensitive explosives is a significant challenge. Herein, based on high-energy tetrazole rings and highly stable 1,3,4-oxadiazole rings, a series of novel nitrogen rich energetic compounds 5-9 were successfully constructed. The related compounds were fully characterized by EA, FT-IR, NMR, DSC, and MS, and compounds 6-9 were further confirmed by X-ray single crystal diffraction.

Modified Simiaowan prevents and treats gouty arthritis via the Nrf2/NLRP3 inflammasome signaling pathway.

Ethnopharmacological Relevance: Modified Simiaowan (MSM) is a six-herb formula that has been shown to be effective in gouty arthritis (GA) has been proven, but its regulatory mechanism has not been fully elucidated.

Aim Of The Study: To investigate the therapeutic effects and mechanism of MSM on gouty arthritis.

Materials And Methods: Mouse J774A.

Hsa_circ_0023826 protects against glaucoma by regulating miR-188-3p/MDM4 axis.

Objective: Circular RNAs (circRNAs) are characterized as a class of covalently closed circRNA transcripts and are associated with various cellular processes and neurological diseases by sponging microRNAs. The most common feature of glaucoma, a form of retinal neuropathy, is the loss of retinal ganglion cells. Although the pathogenesis of glaucoma is not fully understood, elevated intraocular pressure is undoubtedly the only proven modifiable factor in the classic glaucoma model.

MiR-122-5p regulates the mevalonate pathway by targeting p53 in non-small cell lung cancer.

The 5-year survival rate of non-small cell lung cancer (NSCLC) patients is very low. MicroRNAs (miRNAs) are involved in the occurrence of NSCLC. miR-122-5p interacts with wild-type p53 (wtp53), and wtp53 affects tumor growth by inhibiting the mevalonate (MVA) pathway.

Synthesis, Crystal Structure, and Characterization of Energetic Salts Based on 3,5-Diamino-4-Pyrazol-4-One Oxime.

In order to broaden the study of energetic cations, a cation 3,5-diamino-4-pyrazol-4-one oxime (DAPO) with good thermal stability was proposed, and its three salts were synthesized by a simple and efficient method. The structures of the three salts were verified by infrared spectroscopy, mass spectrometry, elemental analysis, and single crystal X-ray diffraction. The thermal stabilities of the three salts were verified by differential scanning calorimetry and thermos-gravimetric analysis.

Giant cutaneous squamous cell carcinoma of the popliteal fossa skin: A case report.

Background: Cutaneous squamous cell carcinoma (cSCC) is a common malignant hyperplasia of the skin epithelium. However, cSCC progressing to giant squamous cell carcinoma of the popliteal fossa skin has not been reported. We used full-thickness skin graft from the lower left quadrant of the abdomen to reconstruct the popliteal fossa skin defect in our patient.

Energetic bimetallic complexes as catalysts affect the thermal decomposition of ammonium perchlorate.

Two bimetallic complexes of 4-hydroxy-3,5-dinitropyrazole, [KMn(DNPO)(HO)]·2HO (BMEP-1) and [KZn(DNPO)(HO)] (BMEP-2), were synthesized and characterized by IR spectroscopy and elemental analysis. The crystal structures of BMEP-1 and BMEP-2 were determined by single-crystal X-ray diffraction. It is noteworthy that these complexes presented different metal-organic frameworks.

The clinical significance of transcription factor WD repeat and HMG-box DNA binding protein 1 in laryngeal squamous cell carcinoma and its potential molecular mechanism.

Background: Currently, high expression of WD repeat and HMG-box DNA binding protein 1 (WDHD1) has been found in a variety of tumors; but there is no research has been conducted concerning the expression of WDHD1 in laryngeal squamous cell carcinoma (LSCC). Our purpose is to investigate the expression and the latent mechanism of WDHD1 in LSCC.

Methods: Firstly, 9 data sets from the Gene Expression Omnibus (GEO), The Cancer Genome Atlas (TCGA), and ArrayExpress were statistically analyzed to explore the expression of WDHD1 in LSCC; immunohistochemistry was performed in 79 LSCC tissues and 44 non-cancer tissues to further verify the result.

Analysis of KRAS Mutation Status Prediction Model for Colorectal Cancer Based on Medical Imaging.

This study retrospectively included some patients with colorectal cancer diagnosed by histopathology, to explore the feasibility of CT medical image texture analysis in predicting KRAS gene mutations in patients with colorectal cancer. Before any surgical procedure, all patients received an enhanced CT scan of the abdomen and pelvis, as well as genetic testing. To define patient groups, divide all patients into test and validation sets based on the order of patient enrollment.

Association of Angiotensin II Type 1 Receptor Agonistic Autoantibodies With Outcomes in Patients With Acute Aortic Dissection.

Importance: Angiotensin II is significantly associated with the pathogenesis of acute aortic dissection. Angiotensin II type 1 receptor agonistic autoantibodies (AT1-AAs) can mimic the effect of angiotensin II.

Objective: To investigate the association between AT1-AAs and all-cause and cause-specific mortality risk in patients with acute aortic dissection.

Isoacteoside attenuates acute kidney injury induced by severe acute pancreatitis.

Severe acute pancreatitis (SAP) is a common acute abdominal disease accompanied by systemic inflammatory response syndrome, which may be complicated by acute kidney injury (AKI). Isoacteoside (ISO) is the active ingredient of Franch. ex Maxim and has been reported to have anti‑inflammatory activities.

Matrix Metalloproteinase-3 induces proteoglycan degradation in gouty arthritis model.

Background: Gout is an inflammatory arthritis resulting from precipitation of monosodium urate (MSU) crystals in joints and surrounding tissues. However, the mechanism underlying high levels of uric acid inducing gouty arthritis has not been clarified.

Objective: The purpose was to investigate the role of Matrix Metalloproteinase-3 (MMP-3) in the development of gouty arthritis from hyperuricemia.

Frequency and Pathophysiology of Post-Seizure Todd's Paralysis.

Todd's paralysis, a neurological abnormality characterized by temporary limb weakness or hemiplegia, typically occurs following a seizure, without enduring consequences. Since limb weakness or hemiplegia can also be a common symptom of an acute ischemic stroke, it is often difficult to diagnose Todd's paralysis in individuals experiencing an acute ischemic stroke if they do not have a pre-existing history of epilepsy. Given that there is a limited understanding of Todd's paralysis, this review discusses the history, prevalence, clinical manifestations, duration, etiology, and diagnosis of Todd's paralysis.

[Mechanism of different processed products of Codonopsis pilosula on spleen deficiency rats based on H-NMR metabonomics].

Based on H-NMR metabonomics,the effects of Codonopsis pilosula,rice-fried C. pilosula and honey-fried C. pilosula on spleen-asthenia rats were compared,and the mechanism was discussed in this study.

A palladium-carbon-connected organometallic framework and its catalytic application.

Herein, we report an organometallic framework (OMF) generated from a divergent tridentate arylisocyanide ligand and PdI2 under solvothermal conditions. The obtained Pd-C bond-connected two-dimensional Pd-OMF was crystalline and porous. Moreover, it could be a highly active catalyst to promote the Suzuki-Miyaura cross-coupling reaction in a heterogeneous manner.

Ischemic stroke in the combined territories of the septum pellucidum and the cingulate gyrus: A case report and literature review.

Introduction: Cases of isolated septum pellucidum infarction have not yet been reported. To date, there are only 2 stroke reports involving septum pellucidum infarction. The etiology of septum pellucidum infarction was subcallosal artery (ScA) injury.

Novel and traditional anthropometric indices for identifying arterial stiffness in overweight and obese adults.

Background: Obesity and arterial stiffness are both independently associated with cardiovascular risk. New anthropometric indices can better reflect abdominal obesity than traditional anthropometric indices. Thus, we hypothesized that compared with conventional parameters, these newly developed anthropometric parameters were more accurate to identify arterial stiffness among overweight and obesity population.

[Effects of Endothelial Progenitor Cells on Vascularization and Osteogenesis of Tissue-engineered Bones in Beagle Dogs].

Objective The explore the effects of endothelial progenitor cells(EPCs)on vascularization and osteogenesis of tissue-engineered bones in Beagle dogs.Methods Bone marrow mesenchymal stem cells(BMSCs)and EPCs from bone marrow of Beagle dogs were isolated,cultured,and expanded and then seeded in β-tricalcium phosphate(TCP)scaffolds. The cell scaffold complexes(EPCs/ BMSCs/TCP group and BMSCs/TCP group)and the blank TCP scaffold were transplanted into the limb muscles of Beagle dogs,respectively.