Cancer malnutrition observed in 31%~87% patients with cancer can reduce the tolerance and compliance to radiotherapy ,interrupt or delay the treatment ,and significantly affect the prognosis .The malnu-trition may be aggravated when the duration of radiotherapy is prolonged and chemotherapy is applied concurrent -ly.PG-SGA is the most suitable method for nutritional risk screening in patients with malignant tumor .According to the result of nutrition assessment ,giving the adaptive nutrition support can improve the nutritional status of pa-tients and the curative effect in the early stage of radiotherapy ,as wells as post radiotherapy .

The triple negative breast cancer is one of importance in clinical subtypes of breast cancer, which is easy to recur and metastasis, and its prognosis is very poor.Radiotherapy, as an effective method for breast cancer,can reduce the risk of local recurrence.This article elaborates its characteristics,the progress of ra-diotherapy in the breast conserving surgery and modified radical mastectomy in triple negative breast cancer,when is the appropriate time for radiotherapy and radiotherapy sensitization,and hope that it will be helpful to the treat-ments.

Objective Through the analysis of the clinicopathological features of triple-negative breast cancer(TNBC),the relationship between recurrence,metastasis,the location of metastatic lymph nodes and primary lesions in breast cancer patients with TNBC was investigated. Methods The clinical data of 763 patients with TNBC from December 2008 to December 2012 in our hospi-tal were retrospectively analyzed. Results The onset average age of TNBC breast cancer was 49 years old,and 84. 7% of patients with early stage. The recurrence and metastasis rates of lymph node-positive patients were significantly higher than those of lymph node-negative patients,and increased the number of lymph nodes(P<0. 001). In the patient with negative for lymph nodes,the pri-mary tumor recurred in the inner quadrant and the metastasis rates were the highest(9. 8% and 13. 7% )(P<0. 05). Univariate anal-ysis showed that lymph node status,surgical procedure,and radiation dose were factors influencing recurrence and metastasis in pa-tients with TNBC(P<0. 05). Multivariate analysis showed that clinical stage and lymph node status were independent risk factors for recurrence of TNBC. Clinical stage and surgical approach were independent risk factors for the metastasis of TNBC ( P <0. 05). Conclusion (1)The proportion of patients with TNBC at early stage is high. The main pathological type is invasive ductal carcino-ma,and the positive expression rate of ki67 is high. (2)The prognosis of patients with positive lymph nodes was related to the number of metastatic lymph nodes,and there was not significant correlated with the location of primary tumor. For patients with negative lymph nodes,the primary tumor was located in the inner quadrant with the highest recurrence and metastasis rates. (3)The recurrence rate of TNBC patients increased with the increase of BMI,but for obese patients,the recurrence rate decreased. (4)Lymph node status,clini-cal stage,surgical procedure,and radiotherapy dose all affect recurrence and metastasis of patients with TNBC. (5)Clinical stage and lymph node status are independent risk factors for the recurrence of TNBC. Clinical stage and surgical approach are independent risk factors for the metastasis of TNBC.

GC-MS and LC-MS are the main techniques used for the structural identification of new psychoactive substances at present. However, they are hard to give accurate structure information because of the hardly available corresponding reference standards and the quickly changing status of these compounds. This leads tremendous obstacle on the rapid identification of new psychoactive substances. Nuclear magnetic resonance spectroscopy is one of the most effective methods for structures identification. Therefore, NMR is especially suitable for the analysis and identification of new psychoactive substances even with rapid structural changes. This article summarizes the NMR applications for the structural analysis of new psychoactive substances including synthetic cannabinoids, synthetic cathinones, piperazines, phenethylamines, ketamine & phencyclidine-type substances, and fentanyls. It is found that the NMR signals of the main frame structure of each kind of the new psychoactive substances are basically the same. Hence, these frame structure NMR signals can provide scientific evidence for the rapid identification of new psychoactive substances. This article also look ahead the prospect for the application of LC-NMR and DOSY in new psychoactive substances, which provides new ideas for the screening of new psychoactive substances.

T 3 rectal cancer patients are a heterogeneous group of populations. T 3 stage patients with good prognosis are similar to their T 2 stage counterparts, and T 3 stage patients with poor prognosis are similar to T 4 stage counterparts. Although small sample clinical trials, meta-analyses and retrospective analyses have been conducted, clinical guidelines are not completely consistent with the definition of risk factors and treatment recommendations for this group of populations. At present, the treatment strategy for T 3 rectal cancer is still controversial, especially the application of perioperative radiotherapy. In this article, current application status and research progress in perioperative chemoradiotherapy for T 3 rectal cancer were reviewed.

The incidence of lateral lymph node metastases (LLN) of locally advanced middle-low rectal cancer (II-Ⅲ stage) is high and clinical prognosis is poor. At present, the treatment plan of LLN is controversial between the East and the West. Scholars from the East represented by Japan believe that LLN is a regional disease. Lateral pelvic lymph node dissection (LPLND) is recommended when the tumor is located under the peritoneal reflection and invades into the muscular layer, regardless of the presence or absence of LLN. However, European and American scholars believe that LLN is a systemic disease and recommend neoadjuvant chemoradiotherapy (nCRT) combined with total mesorectal excision (TME). Nevertheless, recent studies have found that neither nCRT nor LPLND can significantly reduce the locoregional recurrence (LR) rate in patients with LLN, while nCRT combined with LPLND yields better prognosis. Some studies have also demonstrated that increasing the radiotherapy dose of metastatic lymph nodes can improve the local control rate. In this article, current treatment status of this population was reviewed, aiming to provide a basis for clinical treatment.

ObjectiveTo investigate the effect of different doses of Jiedu Tongluo Shengjin prescription （JTSP） on serum interleukin-6 （IL-6）， tumor necrosis factor-α （TNF-α） and forkhead box P3 （FoxP3） in submandibular gland of NOD/Ltj mice with Sjögren's syndrome， and to explore the mechanism of JTSP on immune regulation in NOD/Ltj mice. MethodThirty NOD/Ltj mice （eight weeks old） were randomly divided into model group， JTSP low-dose group， JTSP medium-dose group， JTSP high-dose group and hydroxychloroquine group， and were administrated with normal saline， JTSP 9， 18， and 36 g·kg^-1， and hydroxychloroquine 60 mg·kg^-1 daily， respectively from the age of 12 weeks. Six ICR mice were given an equal amount of normal saline by gavage as the control group. During the experiment， daily water consumption and saliva secretion of mice at the age of 9， 12， 16 weeks were recorded. After 4 weeks of administration， submandibular gland and spleen tissues were dissected to calculate corresponding indexes. The pathological morphology of submandibular gland was observed by hematoxylin-eosin （HE） staining. Meso Scale Discovery （MSD） and immunohistochemistry were employed to detect the serum levels of IL-6， TNF-α and IL-10， and the expression and distribution of FoxP3 in submandibular gland， respectively. The protein expression of FoxP3 in mouse submandibular gland was determined by Western blot， and the mRNA expressions of FoxP3 and TNF-α were determined by real-time polymerase chain reaction （Real-time PCR）. ResultCompared with the control group， the model group presented increased daily water consumption， decreased saliva secretion， lowered submandibular gland index， elevated pathological score of submandibular gland， up-regulated serum IL-6 and TNF-α and mRNA expression of TNF-α while down-regulated serum IL-10 and protein and mRNA expressions of FoxP3 in submandibular gland （P<0.05）. Compared with the conditions in model group， daily water consumption in JTSP groups was reduced while saliva secretion was increased， especially in medium-dose and high-dose groups （P<0.05）， and there was an increase in the submandibular gland index of JTSP medium-dose group （P<0.05） while a decrease in the spleen index of JTSP high-dose group （P<0.05）. Additionally， JTSP groups had lower pathological score of submandibular gland than the model group （P<0.05）， especially high-dose group， as well as lower serum IL-6 and TNF-α and mRNA expression of TNF-α while higher serum IL-10 （P<0.05）. JTSP at medium and high doses up-regulated the protein and mRNA expressions of FoxP3 in submandibular gland （P<0.05）. ConclusionJTSP may inhibit the secretion of inflammatory cytokines by regulating the stability of FoxP3⁺ regulatory T （Treg） cells， thus alleviating the systemic immune inflammation in Sjögren's syndrome.

Viral pneumonia （VP） is an inflammatory disease caused by one or more viruses that infect the upper respiratory tract and spread downward. Causing varying degrees of pulmonary parenchymal damage， VP poses a serious threat to the society and public health. The treatment of VP now faces the dilemma of drug shortage， since Western medicine can only alleviate symptoms and lacks specific treatment methods. In traditional Chinese medicine （TCM）， VP is assigned as an epidemic disease， with the etiology attributed to epidemic toxin and six excesses and the pathological factors of dampness， heat， toxin， deficiency， and stasis. The basic pathogenesis of VP is Yin-Yang imbalance， dysfunction of Zang-Fu organs， and healthy Qi deficiency. Accordingly， the treatment should follow the principle of replenishing healthy Qi and expelling pathogen. The treatment method of VP is mainly developed based on syndrome differentiation of six meridians， defense-Qi-nutrient-blood， and triple energizer. Xuanfei Baidu prescription （XFBD） is an effective prescription developed by Academician ZHANG Boli and Professor LIU Qingquan by literature research and selection of multi-component Chinese medicine. It is the product of modern research combined with TCM. XFBD is modified from Maxing Shigantang， Maxing Yigantang， Tingli Dazao Xiefeitang， Qianjin Weijingtang， and Buhuanjin Zhengqisan. It is mainly used to treat epidemic diseases with the syndrome of dampness toxin stagnating in the lung， with the effects of ventilating lung and resolving dampness， clearing heat and expelling pathogen， purging lung， and removing toxin， demonstrating the potential for the prevention and treatment of VP. This paper reviews the research progress of XFBD in combating VP in terms of the prescription composition， compatibility ideas， indications， and clinical new applications， as well as the pharmacological mechanisms of inhibiting virus， reducing inflammation， regulating immune system， ameliorating pulmonary fibrosis， and modulating intestinal flora. In addition， we put forward our thoughts and suggestions on the problems in the research， with a view to informing the clinical use of drugs and the basic research on the treatment of VP including COVID-19.