Comprehensive geriatric assessment guided radiotherapy in elderly patients with locally advanced rectal cancer-exploratory results on nonoperative cohort of a multicenter prospective study.

Background: Chemoradiotherapy (CRT) is the main treatment for elderly patients with non-metastatic rectal cancer who are ineligible for or decline surgery, but the optimal modality remains unclear.

Objectives: This study was to validate the safety and efficacy of comprehensive geriatric assessment (CGA) guided radiotherapy in older patients.

Design: An exploratory analysis of a single-arm, multicenter, Phase II trial.

generated CFCHN with 3-ylideneoxindoles to access CF-containing pyrazolo[1,5-]quinazolines derivatives.

Toward a selective and facile method for the synthesis of CF-containing pyrazolo[1,5-]quinazolines, we developed a [3 + 2] cycloaddition/1,3-H shift/rearrangement/dehydrogenation cascade involving generated CFCHN and 3-ylideneoxindoles with DBU as a base. The reaction is distinguished by its mild conditions, metal-free process, operational simplicity, and broad functional group tolerance, thus presenting a convenient protocol for the construction of pyrazolo[1,5-]quinazolines that are of interest in medicinal chemistry.

Cavity-Induced Optical Nonreciprocity Based on Degenerate Two-Level Atoms.

We developed and experimentally realized a scheme of optical nonreciprocity (ONR) by using degenerate two-level atoms embedded in an optical ring cavity. For the degenerate transition F = 4 ↔ F = 3, we first studied the cavity-transmission property in different coupling field configurations and verified that under the strong-coupling regime, the single-dark-state peak formed by electromagnetically induced transparency (EIT) showed ONR. The stable ground-state Zeeman coherence for Λ-chains involved in the degenerate two-level system was found to be important in the formation of intracavity EIT.

Preoperative chemoradiotherapy in older patients with rectal cancer guided by comprehensive geriatric assessment within a multidisciplinary team-a multicenter phase II trial.

Background: The purpose of this study was to evaluate the safety and efficacy of preoperative concurrent chemoradiotherapy (preCRT) for locally advanced rectal cancer in older people who were classified as "fit" by comprehensive geriatric assessment (CGA).

Methods: A single-arm, multicenter, phase II trial was designed. Patients were eligible for this study if they were aged 70 years or above and met the standards of "fit" (SIOG1) as evaluated by CGA and of the locally advanced risk category.

A study on the impact of mental health problems on the academic buoyancy of medical students and the mechanisms.

Objective: To analyze the effects of different family environmental backgrounds and mental health problems on academic buoyancy and to explore the potential mechanisms of their effects, using a sample of 2085 medical students in Jiangsu province.

Methods: Using the multiple linear regression to analyze the impact of mental health problems on academic buoyancy in different family environment contexts.

Results: (1) Higher family income and parental literacy implied higher levels of academic buoyancy in children; (2) mental health problems and academic buoyancy were negatively related, and generalized anxiety and uncertainty stress negatively predicted academic buoyancy levels; (3) uncertainty stress may have an indirect effect on academic buoyancy levels through a partially mediating effect of generalized anxiety.

Downregulated calmodulin expression contributes to endothelial cell impairment in diabetes.

Endothelial dysfunction, a central hallmark of cardiovascular pathogenesis in diabetes mellitus, is characterized by impaired endothelial nitric oxide synthase (eNOS) and NO bioavailability. However, the underlying mechanisms remain unclear. Here in this study, we aimed to identify the role of calmodulin (CaM) in diabetic eNOS dysfunction.

The safety of an MRI simulation-guided boost after short-course preoperative radiotherapy for unresectable rectal cancer (SUNRISE): interim analysis of a randomized phase II trial.

Purpose: The safety of an MRI simulation-guided boost after short-course preoperative radiotherapy (SCPRT) for unresectable rectal cancer is assessed with a planned interim analysis.

Methods And Materials: Patients diagnosed with clinical stage T3-4 or regional lymph node-positive disease with positive mesorectal fascia or T4b disease evaluated by pelvic MRI were randomly assigned to the SCPRT-boost group (25 Gy in 5 fractions plus 4 Gy delivered to the gross tumor volume, followed by four cycles of chemotherapy) or preoperative chemoradiotherapy group (50 Gy in 25 fractions with concurrent chemotherapy). Then, patients received total mesorectal excision surgery after preoperative treatment.

[Protective effects of Lycium ruthenicum Murr. juice on alcoholic liver injury in rats].

To study the protective effects of Lycium ruthenicum Murr. juice on alcoholic liver injury in rats and explore the regulatory mechanism of toll-like receptors 4 (TLR4)/p38 mitogen-activated protein kinase (p38 MAPK) signaling pathway in this process. Sixty male SD rats were randomly divided into control group (C), model group (M), low-dose Lycium ruthenicum Murr.

Multicenter, Randomized, Phase III Trial of Short-Term Radiotherapy Plus Chemotherapy Versus Long-Term Chemoradiotherapy in Locally Advanced Rectal Cancer (STELLAR).

Purpose: To ascertain if preoperative short-term radiotherapy followed by chemotherapy is not inferior to a standard schedule of long-term chemoradiotherapy in patients with locally advanced rectal cancer.

Materials And Methods: Patients with distal or middle-third, clinical primary tumor stage 3-4 and/or regional lymph node-positive rectal cancer were randomly assigned (1:1) to short-term radiotherapy (25 Gy in five fractions over 1 week) followed by four cycles of chemotherapy (total neoadjuvant therapy [TNT]) or chemoradiotherapy (50 Gy in 25 fractions over 5 weeks, concurrently with capecitabine [chemoradiotherapy; CRT]). Total mesorectal excision was undertaken 6-8 weeks after preoperative treatment, with two additional cycles of CAPOX (intravenous oxaliplatin [130 mg/m, once a day] on day 1 and capecitabine [1,000 mg/m, twice a day] from days 1 to 14) in the TNT group and six cycles of CAPOX in the CRT group.

[Effects of astaxanthin combined with aerobic exercise on renal aging of rat induced by D-galactose and its mechanism].

To study the effects and mechanisms of astaxanthin combined with aerobic exercise on renal senescence of rat induced by D-galactose. Sixty 3-month-old SPF SD rats were divided into control group (C group), acute senescence group (S group), astaxanthin+acute senescence group (AS group), aerobic exercise+acute senescence group (ES group), astaxanthin+aerobic exercise+acute senescence group (AES group), by two-factor two-level 2×2 factorial design with 12 rats in each group. Acute senescence model of rat was establshed by intraperitoneal injection with 100 mg/(kg·d) D-galactose, and the intervention was conducted with 20 mg/(kg·d) astaxanthin and/or aerobic exercise with 60% VO for 6 weeks.

[Regulatory effect of curcumin on splenic inflammation in overtraining rats and its mechanism].

To study the alleviating effects of curcumin on splenic inflammation in overtraining rats by regulating toll-like receptor 4 (TLR4)-p38 mitogen-activated protein kinase (p38 MAPK)/nuclear factor-kappa B (NF-κB) signaling pathway. Male Wistar rats of 7-week old were divided into control group (C group, 12), overtraining model group (OM group, 11), curcumin + overtraining model group (COM group, 14). C Group did not undergo any exercise intervention.

Novel Compound Missense and Intronic Splicing Mutation in Causes Autosomal Recessive Spastic Paraplegia.

Hereditary spastic paraplegia (HSP) caused by mutations in have been reported as spastic paraplegia 9 (SPG9), with autosomal dominant and autosomal recessive transmission (SPG9A and SPG9B). SPG9 is rare and has shown phenotypic and genotypic heterogeneity in previous reports. This study screened mutations in autosomal recessive HSP patients using combined whole exome sequencing and RNA splicing analysis.

Safety and efficacy of preoperative chemoradiotherapy in fit older patients with intermediate or locally advanced rectal cancer evaluated by comprehensive geriatric assessment: A planned interim analysis of a multicenter, phase II trial.

Background And Purpose: Comprehensive geriatric assessment (CGA) is a diagnostic method to assess the physical and mental health status of older patients. The purpose of this study was to assess the safety and efficacy of preoperative concurrent chemoradiotherapy (preCRT) for intermediate or locally advanced rectal cancer in older people who were classified as "fit" by CGA. The interim analysis focusing on safety was reported here as the first part of this trial.

Quantitative analysis of three-dimensional reconstruction data to guide the selection of methods for laparoscopic distal pancreatectomy.

Background/purpose: To explore the risk factors of splenic vessel preservation in laparoscopic distal pancreatectomy (LDP) and to guide with the appropriate selection of surgical methods through three-dimensional (3D) reconstruction.

Methods: Patients suffering from benign or low-grade malignant tumors of pancreatic body and tail having undergone LDP in Ningbo Medical Center Lihuili Hospital from January 2014 to September 2019 were selected for quantitative analysis of the anatomical data of patients' pancreas, tumors, splenic vessels and spleens by 3D reconstruction. According to the final surgical methods, the patients were divided into the laparoscopic spleen-preserving distal pancreatectomy with splenic vessel preservation (lap-SVP) group and the non-lap-SVP group.

[Regulatory effects of curcumin on spleen apoptosis in overtraining rats and its mechanism].

Objective: To study the mechanisms of curcumin alleviating oxidative stress and spleen apoptosis induced by overtraining in rats by regulating Kelch-like ECH-associated protein-1 (Keap1)-nuclear factor erythroid 2-related factor 2 (Nrf2)-antioxidant response element (ARE) signaling pathway.

Methods: Male Wistar rats of 7 weeks old were divided into control group (C group, 12), overtraining group (OM group, 11), curcumin + overtraining group (COM group, 14). The C Group did not undergo any exercise intervention.

Designing and Constructing a High-Temperature Molecular Ferroelectric by Anion and Cation Replacement in a Simple Crown Ether Clathrate.

Molecular ferroelectrics have displayed a promising future since they are light-weight, flexible, environmentally friendly and easily synthesized, compared to traditional inorganic ferroelectrics. However, how to precisely design a molecular ferroelectric from a non-ferroelectric phase transition molecular system is still a great challenge. Here we designed and constructed a molecular ferroelectric by double regulation of the anion and cation in a simple crown ether clathrate, 4, [K(18-crown-6)] [PF ] .

Application of indocyanine green-enhanced near-infrared fluorescence-guided imaging in laparoscopic lateral pelvic lymph node dissection for middle-low rectal cancer.

Background: As one effective treatment for lateral pelvic lymph node (LPLN) metastasis (LPNM), laparoscopic LPLN dissection (LPND) is limited due to the complicated anatomy of the pelvic sidewall and various complications after surgery. With regard to improving the accuracy and completeness of LPND as well as safety, we tried an innovative method using indocyanine green (ICG) visualized with a near-infrared (NIR) camera system to guide the detection of LPLNs in patients with middle-low rectal cancer.

Aim: To investigate whether ICG-enhanced NIR fluorescence-guided imaging is a better technique for LPND in patients with rectal cancer.

Intra-corporeal delta-shaped anastomosis in laparoscopic right hemicolectomy for right colon cancer: a safe and effective technique.

Background And Objective: Intra-corporeal delta-shaped anastomosis (IDA) is an important development in laparoscopic digestive-tract reconstruction. We applied it in laparoscopic right hemicolectomy for right colon cancer and compared the short-term outcomes between the patients treated with IDA and conventional extracorporeal anastomosis (EA).

Methods: Between 1 January 2016 and 1 October 2017, 36 and 50 patients who underwent IDA and EA, respectively, were included.

The short-term effect analysis of intraoperative intraperitoneal perfusion chemotherapy with lobaplatin for colorectal cancer.

Purpose: To explore the safety and feasibility of intraoperative, intraperitoneal perfusion chemotherapy with lobaplatin for colorectal cancer (CRC).

Methods: From November 1, 2016 to January 15, 2017, a total of 100 patients with CRC in Cancer Hospital, Chinese Academy of Medical Science and Peking Union Medical College, who had undergone radical surgery, were randomized into two groups as follows: the lobaplatin group (50 patients) and the control group (50 patients). The time of recovery of postoperative intestinal functions, hematotoxicity, hepatic-renal toxicity, and postoperative complications were observed and analyzed, with the goal of exploring the safety and feasibility of the drug administration.

[Regulatory effect of curcumin on renal apoptosis and its mechanism in overtraining rats].

Objective: To study the effects and mechanisms of curcumin alleviating oxidative stress induced by overtraining and inhibiting renal apoptosis in rats.

Methods: Male Wistar rats of 7 weeks old were divided into control group (C group, 12), overtraining group (OM group, 11), curcumin + overtraining group (COM group, 14). Group C did not undergo any exercise intervention.