Liver failure is a dreaded and often fatal complication that sometimes follows partial hepatectomy.This article reviews the pathophysiology, risk factors and treatment of post-resectional liver failure (PLF). An inadequate quantity or quality of residual liver mass are the key event in its pathogenesis. The major risk factors are small remnant liver volume (RLV), excessive blood loss or transfusion, ICGR15 of greater than 20%, and F4/F3 liver cirrhosis. It is essential to identify these risk factors during the pre-operative assessment. Preventive measures should be applied whenever possible as options of curative treatment for PLF are limited. Artificial liver and/or liver transplantation are the important treatment alternatives for hepatic failure after hepatectomy.

The lack of organ donors is a major obstacle against the application of liver transplantation.Recently,how to expand the source of liver donors has become a focus of transplantation research.The use of marginal donor may help solve current dilemma between the increasing waiting recipients and the relatively few donors.However,marginal donors always comes with elevated risk of primary nonfunction,initial poor function,delayed graft function loss and infection.Research on risk factors and complication preventing strategies of marginal donor transplantation is important in improving our understanding of liver transplantation.In the present article,we summarized recent progress in the research of marginal donors.And based on the experience from our center,we believe that the use of marginal donors in liver transplantation may help improve the situation of donor shortage,and isehemia-reperfusion injury remains the core topic of marginal donor transplantation and represents the direction of future study.

CMTM家族作为一个新的基因家族，在免疫、生殖等系统以及多种肿瘤的发病机制中起到重要作用。CMTM家族中， CMTM1可影响细胞增殖，导致肿瘤发生；与非小细胞肺癌（NSCLC）患者的化疗耐药和预后有关。CMTM2通过AP-1、CREB通 路一定程度上影响HIV-1转录，同时在男性生殖系统中起重要作用。CMTM3等位基因失活或甲基化使其丧失对细胞增殖的负 性调控能力，是胃癌独立的预后指标。CMTM4调控细胞周期影响肿瘤细胞增殖，通过对PD-L1的协同保护参与免疫逃逸。 CMTM5在许多肿瘤中沉默表达，参与肿瘤发生发展相关的信号通路。CMTM6协同PD-L1参与免疫逃逸，是潜在的免疫治疗靶 点。CMTM7在NSCLC中通过Rab5控制EGFR-AKT信号影响肿瘤发展，且与胃癌发展相关。CMTM8通过MARVEL区域影响 EGFR和相关信号通路，调控细胞增殖、分化和凋亡等。上述重要发现，为研究肿瘤的发生发展及肿瘤基因治疗提供了新思路。

Microcirculation is closely related to occurrence and development of disease, so it is of significance in noninvasive imaging of microcirculatory structure and function in vivo.Photoacoustic imaging is one of the main techniques in microcirculation imaging, which has the characteristics of high contrast, high detection depth and high sensitivity to tissue function.A review of the literature showed that photoacoustic technique can noninvasively image and quantitatively measure microcirculatory structure, vasoconstriction and vasodilation, concentration of hemoglobin, oxygen saturation, blood velocity and direction, oxygen metabolism level in a certain depth of living tissue in real time.Research progress in photoacoustic imaging of microcirculation in subcutis, cerebral cortex, tumor, eye and other tissues is reviewed in this paper.

Sepsis is systemic inflammatory response syndrome(SIRS)associated with the presence of pathogenic microorganisms or their toxin.Lipopolysaccharide(LPS)is an important component of the outer membrane of Gram negative bacteria and has a pivotal role in inducing Gram negative sepsis.Macrophages play an essential role in infection and inflammation.Specific recognition of LPS is of particular importance in the defense system and pattern recognition receptors(PRR)have been considered to be important in initial steps for cellular recognition of LPS and consequence initiation of LPS responses.In the past few years,intense research in the fields of PRR and their recognition mechanism has been achieved.In this review,we attempt to expound recent research advances of macrophage PRRs for LPS recognition and their mechanism.

As the investments from the state and society in universities increased rapidly, the scientific and technological resources gained huge promotion. However, the efficiency of some instruments remained low, and the repeated purchases of some instruments occurred frequently. Here the authors discussed about building a practical, reasonable and efficient system for lab management.

The hypothesis that tumor comes from stem cells has been demonstrated in various human tumors.Cancer is not only a genetic disease but also a stem cell disease. It is a key to regeneration, mutations and recurrence of tumors that gene mutations affect stem cells, and then stem cells mutate to cancer stem cells. In an effort to review the evidence that liver cancer stem cells exist, two fundamental questions must be addressed. First, do hepatocellular carcinomas(HCC)arise from liver stem cells? Second, do HCCs contain cells that possess properties of cancer stem cells?More recently, there is a hypothesis that HCC arise from maturation arrest of liver stem cells. Analysis of the cells in HCC supports the presence of cells with stem-cell properties(ie, immortality, transplantability, and resistance to therapy). However, definitive markers for these putative cancer stem cells have not yet been found and a liver cancer stem cell has not been isolated.

Objective To study the expression of gastrin receptor in 4 HCC cell lines and tis-sues and their relation to clinieopathological features. Methods Immunohistochemical staining of GR was performed for the 4 HCC cell lines and the paraffin sections of 25 HCC cases. The relationship be-tween the GR expression in HCC sections and the clinicopatho[ogical parameters were analyzed. Results Positive staining for GR in the 3 HCC SMMC-7721>HepG2>QGY-7701 cell lines and HCC tissues was observed. The expression rate of gastrin receptor was 56 % (14/25). However, there was no association between expression of GR and elinieopathologieal features such as age, gender and clini-cal stage etc except for tumor thrombosis. Concision GR exists in the HCC. Futher study is needed to identify whether GR is a applicable target for endocrine therapy in HCC.

Objective To explore radionuclide bone imaging characteristics of lung cancer patients and evaluate the clinical significance of bone imaging in the diagnosis of lung cancer patients with bone metastases.Methods One hundred and seventy-seven patients with diagnosed lung cancer were examined by 99mTc -MDP bone imaging,and the symptoms,sites,quantity and pathological types of bone metastases were reviewed and analyzed.Results Total bone metastases ratio of lung cancer was 45.8%(81/177),and 85.2 % (69/81) patients had multiple bone metastases.There was a statistical significance of bone metastases in adenocarcinoma patients (69.0%,40/58),compared with patients of other types of lung cancer[squamous cell cancer (41.3%,19/46),small cell cancer ( 32.5%,13/40),undifferentiated carcinoma ( 27.3%,9/33)](P＜0.05).Bone metastases happened in 526 places: thoracic bones 212 places (40.3%),vertebras 168 places (31.9%),pelvic bones 73 places (13.9%),extremities 62 places (11.8%),and skull 11 places (2.1%).Conclusions Multiple bone metastases is more frequent in lung cancer patients.The most frequent metastatic sites are thoracic bones and vertebras.Bone metastases of adenocarcinoma is more easily than other types of lung cancer.All the patients with lung cancer should perform radionuclide bone scan,which is significant for staging,selecting therapy methods and the evaluating prognosis of the disease.

Objective To investigate the expression of hyperplasia suppressor gene(HSG)/mitofusin 2 (Mfn2)and P21 WAF1 in non-small cell lung cancer(NSCLC).Methods The expression of(HSG/Mfn2)and P21 WAF1 was detected in 92 cases of NSCLC samples by immunohistochemistry(SP).Results The absorptance value of the expression of HSG/Mfn2 in squamous cell carcinoma,adenocarcinoma,and non-cancer tissue were 15.06±2.73,12.21±2.96 and 10.36±3.60,respectively(P<0.05),and they were associated with tumor differentiation.The absorptanee valtue of the expression of P21 WAF1 in squamous cell carcinoma,adenocarcinoma,and non-cancer tissue were 3.16±0.98,3.44±0.22,0.06±0.32.The expression of P21 WAF1 in squamous cell carcinoma and adenocarcinoma Was higher than that in non-cancer tissue(P<0.05),and was closely associated with tumor differ-entiation and lymph node metastasis.Conclusion HSG/Mfn2,P21WAF1 is closely related to the pathogenesis and development of lung cancer.There is positive correlation between the HSG/Mfn2 and P2l WAF1 in lung cancer.