Tracheoesophageal fistula closure after staged dose-escalated radiotherapy for esophageal squamous cell carcinoma: a case report.

An esophageal fistula can be caused by an esophageal tumor as well as the surgery, radiotherapy (RT), or chemoradiotherapy used to treat the tumor. The most dangerous complications are massive hemoptysis and asphyxia. This report describes a 58-year-old man with a >1-month history of dysphagia and hemoptysis.

Treatment mode and prognosis of esophageal perforation after radiotherapy in patients with esophageal carcinoma.

Objective: Retrospectively analyzed the esophageal carcinoma (EC) patients with esophageal perforation (EP) after radiotherapy to discuss the treatment and prognosis.

Methods: Data of patients with EC who had EP after radiotherapy in Hebei Cancer Hospital were collected from 2001 to 2020 and retrospectively analyzed. All analyses were performed using SPSS Statistics for Windows, version 18.

[Advances in the clinical research on acupuncture in treatment of respiratory diseases].

This article reviews the clinical studies on acupuncture in the treatment of asthma, chronic bronchitis, and acute exacerbation and stable phase of chronic obstructive pulmonary disease in China over the past 10 years, and the results suggest that acupuncture has a good clinical effect. At present, there are still several problems in related clinical studies, including lacking of standard operation procedure for acupuncture, unreasonable design of control group, and low quality of clinical research. Therefore, in the future, top-level design should be standardized and large-sample multicenter clinical studies should be conducted to provide stronger evidence of evidence-based medicine for acupuncture in the treatment of respiratory diseases.

The order of multiple excited state proton transfer in ternary complex of norharmane and acetic acids.

Dolores Reyman et al. found the norharmane (9H-pyrido [3,4-b] indole) (NHM) and two acetic acid molecules can form the ternary complex (NHM-2A) in component solvent of dichloromethane and acetic acid via the hydrogen bond chain (J. Lumin.

Globally Accurate Potential Energy Surface for HCS(AA″) by Extrapolation to the Complete Basis Set Limit.

A global potential energy surface (PES) representation of the C(P) + SH(X Π) → H(S) + CS(a Π) system is developed by fitting plenty of precise energies obtained through the ab initio calculation with aug-cc-pV QZ and aug-cc-pV5Z basis sets via extrapolation to the complete basis set limit. The topographical characteristics of the PES are examined in detail, and it is found that they agree well with previous calculations available in the literature. By utilizing the PES of HCS(AA″), the corresponding reaction is investigated using the quasi-classical trajectory (QCT) method in the collision energy range of 0.

Effect of HO Adsorption on Negative Differential Conductance Behavior of Single Junction.

Large negative differential conductance (NDC) at lower bias regime is a very desirable functional property for single molecular device. Due to the non-conjugated segment separating two conjugated branches, the single thiolated arylethynylene molecule with 9,10-dihydroanthracene core (denoted as TADHA) presents excellent NDC behavior in lower bias regime. Based on the ab initio calculation and non-equilibrium Green's function formalism, the NDC behavior of TADHA molecular device and the HO-molecule-adsorption effects are studied systematically.

Effects of epiphytic algae on biomass and physiology of Myriophyllum spicatum L. with the increase of nitrogen and phosphorus availability in the water body.

The disappearance of submerged vascular macrophytes in shallow eutrophic lakes is a common phenomenon in the world. To explore the mechanism of the decline in submerged macrophyte abundance due to the growth of epiphytic algae along a nutrient gradient in eutrophic water, a 2 × 3 factorial experiment was performed over 4 weeks with the submerged macrophyte (Myriophyllum spicatum L.) by determining the plant's biomass and some physiological indexes, such as chlorophyll (Chl) content, malondialdehyde (MDA) content, and superoxide dismutase (SOD) activity in the leaves of M.

Globally accurate potential energy surface for the ground-state HCS(XA') and its use in reaction dynamics.

A globally accurate many-body expansion potential energy surface is reported for HCS(XA') by fitting a wealth of accurate ab initio energies calculated at the multireference configuration interaction level using aug-cc-pVQZ and aug-cc-pV5Z basis sets via extrapolation to the complete basis set limit. The topographical features of the present potential energy surface are examined in detail and is in good agreement with the raw ab initio results, as well as other theoretical results available in literatures. By utilizing the potential energy surface of HCS(XA'), the dynamic studies of the C(P) + SH(XΠ) → H(S) + CS(X∑) reaction has been carried out using quasi-classical trajectory method.

[Spatial and Temporal Distribution Characteristics of Different Forms of Phosphorus in Three Sorts of Rivers around Lake Taihu].

Different forms of phosphorus from the upper reaches of river to lower reaches of river in nine rivers were analyzed to clarify the pollution characteristics of industrial effluent, agriculture effluent and sanitary wastewater to Lake Taihu in February (low water period), May (average water period) and August (abundant water period) of 2009. The results showed that total phosphorus (TP) dissolved total phosphorus (DTP) and soluble reactive phosphorus ( SRP) mass concentration all showed decreasing trend while enzymatic phosphorus (EHP) mass concentration increased with the increase of algal biomass from low water period to abundant water period. Mass concentrations of several forms of phosphorus were all the highest in the rivers impacted by sanitary wastewater, but sanitary wastewater's self-purification capabity from the upper reaches of river to lower reaches of river was the best, and the pollution to Lake Taihu was the lowest.

The physiological responses of Vallisneria natans to epiphytic algae with the increase of N and P concentrations in water bodies.

To reveal the mechanism of submerged plants decline in progressively eutrophicated freshwaters, physiological responses of Vallisneria natans to epiphytic algae were studied in simulation lab by measuring plant physiological indexes of chlorophyll content, malondialdehyde (MDA) content, and superoxide dismutase (SOD) activity based on a 2 × 4 factorial design with two epiphytic conditions (with epiphytic algae and without) and four levels of N and P concentrations in water (N-P[mg.L(-1)]: 0.5, 0.

[Physiological response of Vallisneria natans to nitrogen and phosphorus contents in eutrophic waterbody].

The response of Vallisneria natans to the increase contents of nitrogen and phosphorus were studied under laboratory conditions by measuring chlorophyll fluorescence parameters of V. natans using a pulse-amplitude modulated fluorometer (Diving-PAM), combined with measuring some other physiological indexes of V. natans.

The value of radiotherapy in patients with T1 and T2 breast cancer with one to three positive nodes after modified radical mastectomy.

Background And Objective: The role of adjuvant radiotherapy to the regional nodes in women with T1 to T2 breast cancer and one to three positive nodes is controversial. This study compared and analyzed the prognosis of patients with T1-T2 breast cancer with one to three positive nodes after modified radical mastectomy with or without postoperative radiotherapy.

Methods: The cases of 434 women patients with T1 to T2 breast cancer with one to three positive lymph nodes after modified radical mastectomy were reviewed, of which 196 patients received postoperative radiotherapy and 238 patients did not.

TGF-beta1 in serum and induced sputum for predicting radiation pneumonitis in patients with non-small cell lung cancer after radiotherapy.

Background And Objective: Research has confirmed that transforming growth factor-beta1 (TGF-beta1) is one of the cytokines related to radiation pneumonitis. But the level of TGF-beta1 in serum needed to predict radiation pneumonitis is still not clear. This study assessed the value of TGF-beta1 in both serum and induced sputum in predicting radiation pneumonitis, providing a reference for the radiotherapy of patients with non-small cell lung cancer (NSCLC).

[Photosynthetic fluorescence characteristics of floating-leaved and submersed macrophytes commonly found in Taihu Lake].

Some aquatic macrophytes commonly found in Taihu Lake, including Trapa bispinosa, Nymphyoides peltatum, Vallisneria natans, and Hydrilla verticillata were collected, and their maximal quantum yield of photosystem II (Fv/Fm) as well as the rapid light curves (RLCs) under conditions of light adaptation and dark adaptation were measured in situ by using a submersible and pulse-amplitude modulated fluorometer (Diving-PAM). The results showed that floating-leaved plants T. bispinosa and N.

[Effects of epiphyte on submerged macrophyte in Taihu Lake].

With the eutrophicated Meiliang Bay and macrophyte-dominated Gonghu Bay of Taihu Lake as test areas, this paper studied the biomass of epiphyte and its effect on submerged macrophyte during the vigorous growth season (May-June) of submerged macrophyte in 2005. The results showed that the biomass of epiphyte attached on macrophyte was higher in Gonghu Bay than in Meiliang Bay, and varied within different macrophyte species. The epiphyte inhibited the photosynthetic rate of submerged plant significantly, which could be up to 91.