Case report: A rare but fatal complication of hysteroscopy-air embolism during treatment for missed abortion.

Hysteroscopic procedures complicated by air embolism (AE) are exceptionally rare occurrences in clinical practice, and there have been no previously reported cases of AE associated with hysteroscopic dilation and curettage. While the overall incidence of this complication is low, the consequences can be devastating. During early pregnancy, the unique physiological changes, such as elevated hormonal levels and increased uterine blood supply, significantly heighten the risk of AE development.

Corrigendum: Case report: A relatively rare adverse event caused by carbetocin-placenta interception.

[This corrects the article DOI: 10.3389/fphar.2023.

Characteristics of the Blockage from Air Nozzle Guide Duct in Circulating the Fluidized-Bed Coal Gasifier and Its Formation Mechanism.

Blockage is often generated in the air nozzle guide duct in a circulating fluidized-bed coal gasifier (CFBG), especially with Zhundong sub-bituminous coal (ZSBC) as the raw material. A typical example is found in one CFBG sample from Xinjiang Yihua Chemical Industry Co, Ltd. The serious blockage can be observed obviously.

NUCKS1 promotes the progression of colorectal cancer via activating PI3K/AKT/mTOR signaling pathway.

Nuclear ubiquitous casein and cyclin-dependent kinase substrate 1 (NUCKS1) is highly expressed in a variety of malignant tumors and functions as an oncogene; however, its role in colorectal cancer (CRC) remains unclear. We aimed to explore the function and regulatory mechanisms of NUCKS1 and potential therapeutic agents targeting NUCKS1 in CRC. We knocked down and overexpressed NUCKS1 in CRC cells and explored its effects in vitro and in vivo.

Case report: A relatively rare adverse event caused by carbetocin- placenta interception.

Placenta interception is extremely rare, and herein, we report the case of a 33-year-old woman with placenta interception during cesarean section caused by carbetocin, which was intravenously injected immediately after delivery of the infant to prevent postpartum hemorrhage. There was no sign of placental separation in the third stage of labor. A protuberance with gross subserous blood vessels in the left fundus of the uterus was detected and was misdiagnosed as placental accreta.

NCAPH regulates gastric cancer progression through DNA damage response.

Gastric cancer (GC) is one of the most common devastating and deadly malignancies of the gastrointestinal tract in the world. GLOBOCAN data analysis showed that GC accounted for approximately 1,033,000 new cases of cancer and 78,200 deaths in 2018. Nonstructural maintenance of chromosomes (non-SMC) condensin I complex subunit H (NCAPH) is a regulatory subunit that encodes the non-SMC condensin I complex.

The Tumor-Associated Macrophage-M2-Cancer Cell Complex and the Observation of Heterogeneous Modification of the Morphological Structure of Lung Adenocarcinoma.

Objective: The aim of this study was to investigate the effect of the tumor-associated macrophage-m2-cancer cell complex (TAM-M2-CC) on the heterostructural modification of lung adenocarcinoma.

Methods: The expression of CD163+/CD68+ in macrophages in the microenvironment of 161 cases of lung adenocarcinoma was identified by dual immunohistochemistry, and the association between a TAM-M2-CC and its growth, as well as the histological changes in lung adenocarcinoma cells, was assessed.

Results: The morphological change of lung adenocarcinoma was related to the number of m2 phenotypes of the macrophages in the microenvironment of lung adenocarcinoma.

Molecular dynamic simulation of performance of modified BAMO/AMMO copolymers and their effects on mechanical properties of energetic materials.

Based on molecular dynamic method, densities, mechanical behavior and mechanical performance of P(BAMO/ AMMO) (Polymer 1) and two novel modified P(BAMO/AMMO) (Polymer 2: containing amino group, Polymer 3: containing nitro group), and their effects on mechanical properties of four energetic materials are investigated, the main results are as follow: Polymer 2 (1.235 g/cm, 240 ± 5 K) and Polymer 3: 1.281 g/cm, 181 ± 3 K) possess higher densities and lower glass transition temperatures than Polymer 1 (1.

CL-20-Based Cocrystal Energetic Materials: Simulation, Preparation and Performance.

The cocrystallization of high-energy explosives has attracted great interests since it can alleviate to a certain extent the power-safety contradiction. 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaaza-isowurtzitane (CL-20), one of the most powerful explosives, has attracted much attention for researchers worldwide. However, the disadvantage of CL-20 has increased sensitivity to mechanical stimuli and cocrystallization of CL-20 with other compounds may provide a way to decrease its sensitivity.

Diffuse biliary peritonitis secondary to rupture of metastatic liver adenocarcinomas after drug-eluting bead transcatheter arterial chemoembolization: a case report.

Transcatheter arterial chemoembolization (TACE) has become one of the first-line standard treatments for intermediate-advanced hepatocellular carcinoma, as well as an effective treatment for metastatic hepatic carcinoma. The majority of TACE-related complications are mild and acceptable to patients. Compared with conventional (C)-TACE, drug-eluting bead (DEB)-TACE allows permanent embolization of blood vessels, a slow continuous release of anti-tumour drugs in a locally targeted manner, and reduction of the systemic release of anti-tumour drugs, so that their adverse effects are significantly reduced.

Transformation of Combustion Nanocatalysts inside Solid Rocket Motor under Various Pressures.

In this paper, the dependences of the morphology, particle sizes, and compositions of the condensed combustion products (CCP) of modified double-base propellants (1,3,5-trimethylenetrinitramine (RDX) as oxidizer) on the chamber pressure (<35 MPa) and nickel inclusion have been evaluated under a practical rocket motor operation. It has been shown that higher pressure results in smaller average particle sizes of the CCPs. The CCPs of Ni-containing propellants have more diverse morphologies, including spherical particles, large layered structures, and small flakes coated on large particles depending on the pressure.

Widespread occurrence of Cryptosporidium infections in patients with HIV/AIDS: Epidemiology, clinical feature, diagnosis, and therapy.

Cryptosporidium infection is a serious threat for HIV/AIDS patients, causing severe diarrhea and even death. The overall prevalence of Cryptosporidium in HIV/AIDS patients was calculated as approximately 8.69% (7,799/89,724), with higher prevalence observed in individuals with diarrhea, individuals with low CD4 T-lymphocyte counts, and antiretroviral therapy-naïve individuals.

Treatment of an incarcerated inguinal hernia associated with abdominal tuberculosis in an adult patient.

The incidence of tuberculosis is increasing worldwide, especially in developing countries. The prevalence of abdominal tuberculosis has been found to be as high as 12% in people with extrapulmonary tuberculosis. Peritoneal thickening and intestinal adhesions can occur in patients with abdominal tuberculosis.

Novel genotypes and multilocus genotypes of Enterocytozoon bieneusi in pigs in northwestern China: A public health concern.

Enterocytozoon bieneusi, the most important and common microsporidian species, inhabits in most animals and humans causing diarrhea and systemic diseases. The objectives of the present study were to examine the prevalence and genetic variability of E. bieneusi in pigs in Shaanxi province, northwestern China.

A distal ileum malignant peripheral nerve sheath tumor causing intussusception in a patient in China: a case report.

Background: Malignant peripheral nerve sheath tumors (MPNSTs) arise from a peripheral nerve or display nerve sheath differentiation. Most MPNSTs typically originate on the trunk, extremities, head, neck, and paravertebral regions. Gastrointestinal MPNSTs are rare entities with only 10 cases reported worldwide in the literatures.

[Clinical analysis of 29 cases with neuroendocrine neoplasm in the digestive system].

Objective: To investigate the diagnosis and treatment of neuroendocrine neoplasm (NEN) in the digestive system.

Methods: Clinical data of 29 patients with NEN from January 2000 to December 2012 in The First Affiliated Hospital of Dalian Medical University were analyzed retrospectively and the prognosis was evaluated according to the new WHO classification.

Results: There were 19 males and 10 females and the average age was 46.

A novel colorimetric HSO4(-) sensor in aqueous media.

A novel and sensitive anion receptor 3, bearing Schiff base structure, nitrophenyl azobenzol and carboxyl groups, was developed and characterized as a single chemosensor for the recognition of HSO(4)(-) anion. The different responses of UV-vis spectra and color changes of 3 could be applied to the recognition for HSO(4)(-) over other anions such as F(-), CI(-), Br(-), I(-), AcO(-), H(2)PO(4)(-) and CIO(4)(-) by the naked eye. Furthermore, the anion binding interaction of receptor-anion was also studied using UV-vis and (1)H NMR titration which revealed that 3 displayed a remarkable binding ability for the HSO(4)(-) with an association constant K(a)=6.

Mercapto thiadiazole-based sensor with colorimetric specific selectivity for AcO- in aqueous solution.

A novel acetate selective anion sensor 3 based on azophenol and mercapto thiadiazole had been designed and synthesized. Sensor 3 behaves a single selectivity and sensitivity in the recognition for AcO(-) anion over other anions such as F(-), Cl(-), Br(-), I(-), H(2)PO(4)(-), HSO(4)(-) and ClO(4)(-) by naked-eyes and UV-vis spectra changes in aqueous solution (H(2)O/DMSO, 5:5, v/v). The color of the solution containing sensor 3 had an obvious change from colorless to orange only after the addition of AcO(-) in aqueous solution while other anions did not cause obvious color change.

[Hepatitis B surface antigen terminates codon bias selection].

Objective: To investigate the existence condition of hepatitis B surface antigen(HBsAg) termination codon bias.

Methods: A total of 174 reference sequences of all kinds of Hepatitis B virus(HBV) genotypes were chosen from GenBank, and compared by BioEdit. Then secondary structure of RNA was constructed and analyzed together.

[The distribution of hepatitis C virus genotype 1a in Yanbian area].

Objective: To investigate the distribution of Hepatitis C Virus (HCV)genotype 1a in Yanbian area, Jilin province.

Methods: The genotypes of the serum specimens of 47 patients with HCV from Yanbian area were determined by Scheme ABC of RFLP based on HCV 5' noncoding region (5'NCR). The samples of type 1a (Y2, Y4, Y6, and Y8) were amplified from the 5'NCR and NS5B regions by RT-PCR, and then sequenced directly.

[Utilization of Uracil-DNA glycosylase for combining reverse transcription and anti-contamination with polymerase chain reaction in hepatitis C virus].

Objective: To develop a hepatitis C virus(HCV) reverse transcription-polymerase chain reaction (RT-PCR) assay using Uracil-DNA glycosylase (UDG) for amplicon contamination control and evaluate the temperature and UDG concentrations for anti-contamination.

Methods: In this new HCV RT-PCR assay, reverse transcription, UDG anti-contamination and the first PCR were carried out at the same time. The layer candles were used to prevent the contamination in the second PCR.

[Analysis and state of HCV genotype 6a infection].

Objective: To investigate the infection state of hepatitis C virus genotype 6a in China.

Methods: Three (95, 126, 150)HCV genotype 6a serum samples were identified by digesting 5'NCR with compound enzyme method. Then, HCV 5'NCR and NS5B fragments were amplified from these samples by RT-PCR assay and sequenced.